sys/dev/netif/bce/if_bce.c

   1 /*-
   2  * Copyright (c) 2006-2007 Broadcom Corporation
   3  *      David Christensen <davidch@broadcom.com>.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   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. Neither the name of Broadcom Corporation nor the name of its contributors
  15  *    may be used to endorse or promote products derived from this software
  16  *    without specific prior written consent.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS'
  19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
  22  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  28  * THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * $FreeBSD: src/sys/dev/bce/if_bce.c,v 1.31 2007/05/16 23:34:11 davidch Exp $
  31  */
  32
  33 /*
  34  * The following controllers are supported by this driver:
  35  *   BCM5706C A2, A3
  36  *   BCM5706S A2, A3
  37  *   BCM5708C B1, B2
  38  *   BCM5708S B1, B2
  39  *   BCM5709C A1, C0
  40  *   BCM5716  C0
  41  *
  42  * The following controllers are not supported by this driver:
  43  *   BCM5706C A0, A1
  44  *   BCM5706S A0, A1
  45  *   BCM5708C A0, B0
  46  *   BCM5708S A0, B0
  47  *   BCM5709C A0, B0, B1
  48  *   BCM5709S A0, A1, B0, B1, B2, C0
  49  */
  50
  51 #include "opt_bce.h"
  52 #include "opt_polling.h"
  53
  54 #include <sys/param.h>
  55 #include <sys/bus.h>
  56 #include <sys/endian.h>
  57 #include <sys/kernel.h>
  58 #include <sys/interrupt.h>
  59 #include <sys/mbuf.h>
  60 #include <sys/malloc.h>
  61 #include <sys/queue.h>
  62 #ifdef BCE_DEBUG
  63 #include <sys/random.h>
  64 #endif
  65 #include <sys/rman.h>
  66 #include <sys/serialize.h>
  67 #include <sys/socket.h>
  68 #include <sys/sockio.h>
  69 #include <sys/sysctl.h>
  70
  71 #include <net/bpf.h>
  72 #include <net/ethernet.h>
  73 #include <net/if.h>
  74 #include <net/if_arp.h>
  75 #include <net/if_dl.h>
  76 #include <net/if_media.h>
  77 #include <net/if_types.h>
  78 #include <net/ifq_var.h>
  79 #include <net/vlan/if_vlan_var.h>
  80 #include <net/vlan/if_vlan_ether.h>
  81
  82 #include <dev/netif/mii_layer/mii.h>
  83 #include <dev/netif/mii_layer/miivar.h>
  84 #include <dev/netif/mii_layer/brgphyreg.h>
  85
  86 #include <bus/pci/pcireg.h>
  87 #include <bus/pci/pcivar.h>
  88
  89 #include "miibus_if.h"
  90
  91 #include <dev/netif/bce/if_bcereg.h>
  92 #include <dev/netif/bce/if_bcefw.h>
  93
  94 /****************************************************************************/
  95 /* BCE Debug Options                                                        */
  96 /****************************************************************************/
  97 #ifdef BCE_DEBUG
  98
  99 static uint32_t bce_debug = BCE_WARN;
 100
 101 /*
 102  *          0 = Never
 103  *          1 = 1 in 2,147,483,648
 104  *        256 = 1 in     8,388,608
 105  *       2048 = 1 in     1,048,576
 106  *      65536 = 1 in        32,768
 107  *    1048576 = 1 in         2,048
 108  *  268435456 = 1 in             8
 109  *  536870912 = 1 in             4
 110  * 1073741824 = 1 in             2
 111  *
 112  * bce_debug_l2fhdr_status_check:
 113  *     How often the l2_fhdr frame error check will fail.
 114  *
 115  * bce_debug_unexpected_attention:
 116  *     How often the unexpected attention check will fail.
 117  *
 118  * bce_debug_mbuf_allocation_failure:
 119  *     How often to simulate an mbuf allocation failure.
 120  *
 121  * bce_debug_dma_map_addr_failure:
 122  *     How often to simulate a DMA mapping failure.
 123  *
 124  * bce_debug_bootcode_running_failure:
 125  *     How often to simulate a bootcode failure.
 126  */
 127 static int      bce_debug_l2fhdr_status_check = 0;
 128 static int      bce_debug_unexpected_attention = 0;
 129 static int      bce_debug_mbuf_allocation_failure = 0;
 130 static int      bce_debug_dma_map_addr_failure = 0;
 131 static int      bce_debug_bootcode_running_failure = 0;
 132
 133 #endif  /* BCE_DEBUG */
 134
 135
 136 /****************************************************************************/
 137 /* PCI Device ID Table                                                      */
 138 /*                                                                          */
 139 /* Used by bce_probe() to identify the devices supported by this driver.    */
 140 /****************************************************************************/
 141 #define BCE_DEVDESC_MAX         64
 142
 143 static struct bce_type bce_devs[] = {
 144         /* BCM5706C Controllers and OEM boards. */
 145         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706,  HP_VENDORID, 0x3101,
 146                 "HP NC370T Multifunction Gigabit Server Adapter" },
 147         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706,  HP_VENDORID, 0x3106,
 148                 "HP NC370i Multifunction Gigabit Server Adapter" },
 149         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706,  HP_VENDORID, 0x3070,
 150                 "HP NC380T PCIe DP Multifunc Gig Server Adapter" },
 151         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706,  HP_VENDORID, 0x1709,
 152                 "HP NC371i Multifunction Gigabit Server Adapter" },
 153         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706,  PCI_ANY_ID,  PCI_ANY_ID,
 154                 "Broadcom NetXtreme II BCM5706 1000Base-T" },
 155
 156         /* BCM5706S controllers and OEM boards. */
 157         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706S, HP_VENDORID, 0x3102,
 158                 "HP NC370F Multifunction Gigabit Server Adapter" },
 159         { BRCM_VENDORID, BRCM_DEVICEID_BCM5706S, PCI_ANY_ID,  PCI_ANY_ID,
 160                 "Broadcom NetXtreme II BCM5706 1000Base-SX" },
 161
 162         /* BCM5708C controllers and OEM boards. */
 163         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708,  HP_VENDORID, 0x7037,
 164                 "HP NC373T PCIe Multifunction Gig Server Adapter" },
 165         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708,  HP_VENDORID, 0x7038,
 166                 "HP NC373i Multifunction Gigabit Server Adapter" },
 167         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708,  HP_VENDORID, 0x7045,
 168                 "HP NC374m PCIe Multifunction Adapter" },
 169         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708,  PCI_ANY_ID,  PCI_ANY_ID,
 170                 "Broadcom NetXtreme II BCM5708 1000Base-T" },
 171
 172         /* BCM5708S controllers and OEM boards. */
 173         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708S,  HP_VENDORID, 0x1706,
 174                 "HP NC373m Multifunction Gigabit Server Adapter" },
 175         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708S,  HP_VENDORID, 0x703b,
 176                 "HP NC373i Multifunction Gigabit Server Adapter" },
 177         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708S,  HP_VENDORID, 0x703d,
 178                 "HP NC373F PCIe Multifunc Giga Server Adapter" },
 179         { BRCM_VENDORID, BRCM_DEVICEID_BCM5708S,  PCI_ANY_ID,  PCI_ANY_ID,
 180                 "Broadcom NetXtreme II BCM5708S 1000Base-T" },
 181
 182         /* BCM5709C controllers and OEM boards. */
 183         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709,  HP_VENDORID, 0x7055,
 184                 "HP NC382i DP Multifunction Gigabit Server Adapter" },
 185         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709,  HP_VENDORID, 0x7059,
 186                 "HP NC382T PCIe DP Multifunction Gigabit Server Adapter" },
 187         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709,  PCI_ANY_ID,  PCI_ANY_ID,
 188                 "Broadcom NetXtreme II BCM5709 1000Base-T" },
 189
 190         /* BCM5709S controllers and OEM boards. */
 191         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709S,  HP_VENDORID, 0x171d,
 192                 "HP NC382m DP 1GbE Multifunction BL-c Adapter" },
 193         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709S,  HP_VENDORID, 0x7056,
 194                 "HP NC382i DP Multifunction Gigabit Server Adapter" },
 195         { BRCM_VENDORID, BRCM_DEVICEID_BCM5709S,  PCI_ANY_ID,  PCI_ANY_ID,
 196                 "Broadcom NetXtreme II BCM5709 1000Base-SX" },
 197
 198         /* BCM5716 controllers and OEM boards. */
 199         { BRCM_VENDORID, BRCM_DEVICEID_BCM5716,   PCI_ANY_ID,  PCI_ANY_ID,
 200                 "Broadcom NetXtreme II BCM5716 1000Base-T" },
 201
 202         { 0, 0, 0, 0, NULL }
 203 };
 204
 205
 206 /****************************************************************************/
 207 /* Supported Flash NVRAM device data.                                       */
 208 /****************************************************************************/
 209 static const struct flash_spec flash_table[] =
 210 {
 211 #define BUFFERED_FLAGS          (BCE_NV_BUFFERED | BCE_NV_TRANSLATE)
 212 #define NONBUFFERED_FLAGS       (BCE_NV_WREN)
 213
 214         /* Slow EEPROM */
 215         {0x00000000, 0x40830380, 0x009f0081, 0xa184a053, 0xaf000400,
 216          BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
 217          SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
 218          "EEPROM - slow"},
 219         /* Expansion entry 0001 */
 220         {0x08000002, 0x4b808201, 0x00050081, 0x03840253, 0xaf020406,
 221          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 222          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 223          "Entry 0001"},
 224         /* Saifun SA25F010 (non-buffered flash) */
 225         /* strap, cfg1, & write1 need updates */
 226         {0x04000001, 0x47808201, 0x00050081, 0x03840253, 0xaf020406,
 227          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 228          SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*2,
 229          "Non-buffered flash (128kB)"},
 230         /* Saifun SA25F020 (non-buffered flash) */
 231         /* strap, cfg1, & write1 need updates */
 232         {0x0c000003, 0x4f808201, 0x00050081, 0x03840253, 0xaf020406,
 233          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 234          SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE*4,
 235          "Non-buffered flash (256kB)"},
 236         /* Expansion entry 0100 */
 237         {0x11000000, 0x53808201, 0x00050081, 0x03840253, 0xaf020406,
 238          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 239          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 240          "Entry 0100"},
 241         /* Entry 0101: ST M45PE10 (non-buffered flash, TetonII B0) */
 242         {0x19000002, 0x5b808201, 0x000500db, 0x03840253, 0xaf020406,
 243          NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
 244          ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*2,
 245          "Entry 0101: ST M45PE10 (128kB non-bufferred)"},
 246         /* Entry 0110: ST M45PE20 (non-buffered flash)*/
 247         {0x15000001, 0x57808201, 0x000500db, 0x03840253, 0xaf020406,
 248          NONBUFFERED_FLAGS, ST_MICRO_FLASH_PAGE_BITS, ST_MICRO_FLASH_PAGE_SIZE,
 249          ST_MICRO_FLASH_BYTE_ADDR_MASK, ST_MICRO_FLASH_BASE_TOTAL_SIZE*4,
 250          "Entry 0110: ST M45PE20 (256kB non-bufferred)"},
 251         /* Saifun SA25F005 (non-buffered flash) */
 252         /* strap, cfg1, & write1 need updates */
 253         {0x1d000003, 0x5f808201, 0x00050081, 0x03840253, 0xaf020406,
 254          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 255          SAIFUN_FLASH_BYTE_ADDR_MASK, SAIFUN_FLASH_BASE_TOTAL_SIZE,
 256          "Non-buffered flash (64kB)"},
 257         /* Fast EEPROM */
 258         {0x22000000, 0x62808380, 0x009f0081, 0xa184a053, 0xaf000400,
 259          BUFFERED_FLAGS, SEEPROM_PAGE_BITS, SEEPROM_PAGE_SIZE,
 260          SEEPROM_BYTE_ADDR_MASK, SEEPROM_TOTAL_SIZE,
 261          "EEPROM - fast"},
 262         /* Expansion entry 1001 */
 263         {0x2a000002, 0x6b808201, 0x00050081, 0x03840253, 0xaf020406,
 264          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 265          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 266          "Entry 1001"},
 267         /* Expansion entry 1010 */
 268         {0x26000001, 0x67808201, 0x00050081, 0x03840253, 0xaf020406,
 269          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 270          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 271          "Entry 1010"},
 272         /* ATMEL AT45DB011B (buffered flash) */
 273         {0x2e000003, 0x6e808273, 0x00570081, 0x68848353, 0xaf000400,
 274          BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
 275          BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE,
 276          "Buffered flash (128kB)"},
 277         /* Expansion entry 1100 */
 278         {0x33000000, 0x73808201, 0x00050081, 0x03840253, 0xaf020406,
 279          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 280          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 281          "Entry 1100"},
 282         /* Expansion entry 1101 */
 283         {0x3b000002, 0x7b808201, 0x00050081, 0x03840253, 0xaf020406,
 284          NONBUFFERED_FLAGS, SAIFUN_FLASH_PAGE_BITS, SAIFUN_FLASH_PAGE_SIZE,
 285          SAIFUN_FLASH_BYTE_ADDR_MASK, 0,
 286          "Entry 1101"},
 287         /* Ateml Expansion entry 1110 */
 288         {0x37000001, 0x76808273, 0x00570081, 0x68848353, 0xaf000400,
 289          BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
 290          BUFFERED_FLASH_BYTE_ADDR_MASK, 0,
 291          "Entry 1110 (Atmel)"},
 292         /* ATMEL AT45DB021B (buffered flash) */
 293         {0x3f000003, 0x7e808273, 0x00570081, 0x68848353, 0xaf000400,
 294          BUFFERED_FLAGS, BUFFERED_FLASH_PAGE_BITS, BUFFERED_FLASH_PAGE_SIZE,
 295          BUFFERED_FLASH_BYTE_ADDR_MASK, BUFFERED_FLASH_TOTAL_SIZE*2,
 296          "Buffered flash (256kB)"},
 297 };
 298
 299 /*
 300  * The BCM5709 controllers transparently handle the
 301  * differences between Atmel 264 byte pages and all
 302  * flash devices which use 256 byte pages, so no
 303  * logical-to-physical mapping is required in the
 304  * driver.
 305  */
 306 static struct flash_spec flash_5709 = {
 307         .flags          = BCE_NV_BUFFERED,
 308         .page_bits      = BCM5709_FLASH_PAGE_BITS,
 309         .page_size      = BCM5709_FLASH_PAGE_SIZE,
 310         .addr_mask      = BCM5709_FLASH_BYTE_ADDR_MASK,
 311         .total_size     = BUFFERED_FLASH_TOTAL_SIZE * 2,
 312         .name           = "5709/5716 buffered flash (256kB)",
 313 };
 314
 315
 316 /****************************************************************************/
 317 /* DragonFly device entry points.                                           */
 318 /****************************************************************************/
 319 static int      bce_probe(device_t);
 320 static int      bce_attach(device_t);
 321 static int      bce_detach(device_t);
 322 static void     bce_shutdown(device_t);
 323
 324 /****************************************************************************/
 325 /* BCE Debug Data Structure Dump Routines                                   */
 326 /****************************************************************************/
 327 #ifdef BCE_DEBUG
 328 static void     bce_dump_mbuf(struct bce_softc *, struct mbuf *);
 329 static void     bce_dump_tx_mbuf_chain(struct bce_softc *, int, int);
 330 static void     bce_dump_rx_mbuf_chain(struct bce_softc *, int, int);
 331 static void     bce_dump_txbd(struct bce_softc *, int, struct tx_bd *);
 332 static void     bce_dump_rxbd(struct bce_softc *, int, struct rx_bd *);
 333 static void     bce_dump_l2fhdr(struct bce_softc *, int,
 334                                 struct l2_fhdr *) __unused;
 335 static void     bce_dump_tx_chain(struct bce_softc *, int, int);
 336 static void     bce_dump_rx_chain(struct bce_softc *, int, int);
 337 static void     bce_dump_status_block(struct bce_softc *);
 338 static void     bce_dump_driver_state(struct bce_softc *);
 339 static void     bce_dump_stats_block(struct bce_softc *) __unused;
 340 static void     bce_dump_hw_state(struct bce_softc *);
 341 static void     bce_dump_txp_state(struct bce_softc *);
 342 static void     bce_dump_rxp_state(struct bce_softc *) __unused;
 343 static void     bce_dump_tpat_state(struct bce_softc *) __unused;
 344 static void     bce_freeze_controller(struct bce_softc *) __unused;
 345 static void     bce_unfreeze_controller(struct bce_softc *) __unused;
 346 static void     bce_breakpoint(struct bce_softc *);
 347 #endif  /* BCE_DEBUG */
 348
 349
 350 /****************************************************************************/
 351 /* BCE Register/Memory Access Routines                                      */
 352 /****************************************************************************/
 353 static uint32_t bce_reg_rd_ind(struct bce_softc *, uint32_t);
 354 static void     bce_reg_wr_ind(struct bce_softc *, uint32_t, uint32_t);
 355 static void     bce_shmem_wr(struct bce_softc *, uint32_t, uint32_t);
 356 static uint32_t bce_shmem_rd(struct bce_softc *, u32);
 357 static void     bce_ctx_wr(struct bce_softc *, uint32_t, uint32_t, uint32_t);
 358 static int      bce_miibus_read_reg(device_t, int, int);
 359 static int      bce_miibus_write_reg(device_t, int, int, int);
 360 static void     bce_miibus_statchg(device_t);
 361
 362
 363 /****************************************************************************/
 364 /* BCE NVRAM Access Routines                                                */
 365 /****************************************************************************/
 366 static int      bce_acquire_nvram_lock(struct bce_softc *);
 367 static int      bce_release_nvram_lock(struct bce_softc *);
 368 static void     bce_enable_nvram_access(struct bce_softc *);
 369 static void     bce_disable_nvram_access(struct bce_softc *);
 370 static int      bce_nvram_read_dword(struct bce_softc *, uint32_t, uint8_t *,
 371                                      uint32_t);
 372 static int      bce_init_nvram(struct bce_softc *);
 373 static int      bce_nvram_read(struct bce_softc *, uint32_t, uint8_t *, int);
 374 static int      bce_nvram_test(struct bce_softc *);
 375
 376 /****************************************************************************/
 377 /* BCE DMA Allocate/Free Routines                                           */
 378 /****************************************************************************/
 379 static int      bce_dma_alloc(struct bce_softc *);
 380 static void     bce_dma_free(struct bce_softc *);
 381 static void     bce_dma_map_addr(void *, bus_dma_segment_t *, int, int);
 382
 383 /****************************************************************************/
 384 /* BCE Firmware Synchronization and Load                                    */
 385 /****************************************************************************/
 386 static int      bce_fw_sync(struct bce_softc *, uint32_t);
 387 static void     bce_load_rv2p_fw(struct bce_softc *, uint32_t *,
 388                                  uint32_t, uint32_t);
 389 static void     bce_load_cpu_fw(struct bce_softc *, struct cpu_reg *,
 390                                 struct fw_info *);
 391 static void     bce_start_cpu(struct bce_softc *, struct cpu_reg *);
 392 static void     bce_halt_cpu(struct bce_softc *, struct cpu_reg *);
 393 static void     bce_start_rxp_cpu(struct bce_softc *);
 394 static void     bce_init_rxp_cpu(struct bce_softc *);
 395 static void     bce_init_txp_cpu(struct bce_softc *);
 396 static void     bce_init_tpat_cpu(struct bce_softc *);
 397 static void     bce_init_cp_cpu(struct bce_softc *);
 398 static void     bce_init_com_cpu(struct bce_softc *);
 399 static void     bce_init_cpus(struct bce_softc *);
 400
 401 static void     bce_stop(struct bce_softc *);
 402 static int      bce_reset(struct bce_softc *, uint32_t);
 403 static int      bce_chipinit(struct bce_softc *);
 404 static int      bce_blockinit(struct bce_softc *);
 405 static int      bce_newbuf_std(struct bce_softc *, uint16_t *, uint16_t *,
 406                                uint32_t *, int);
 407 static void     bce_setup_rxdesc_std(struct bce_softc *, uint16_t, uint32_t *);
 408 static void     bce_probe_pci_caps(struct bce_softc *);
 409 static void     bce_print_adapter_info(struct bce_softc *);
 410 static void     bce_get_media(struct bce_softc *);
 411
 412 static void     bce_init_tx_context(struct bce_softc *);
 413 static int      bce_init_tx_chain(struct bce_softc *);
 414 static void     bce_init_rx_context(struct bce_softc *);
 415 static int      bce_init_rx_chain(struct bce_softc *);
 416 static void     bce_free_rx_chain(struct bce_softc *);
 417 static void     bce_free_tx_chain(struct bce_softc *);
 418
 419 static int      bce_encap(struct bce_softc *, struct mbuf **);
 420 static void     bce_start(struct ifnet *);
 421 static int      bce_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
 422 static void     bce_watchdog(struct ifnet *);
 423 static int      bce_ifmedia_upd(struct ifnet *);
 424 static void     bce_ifmedia_sts(struct ifnet *, struct ifmediareq *);
 425 static void     bce_init(void *);
 426 static void     bce_mgmt_init(struct bce_softc *);
 427
 428 static int      bce_init_ctx(struct bce_softc *);
 429 static void     bce_get_mac_addr(struct bce_softc *);
 430 static void     bce_set_mac_addr(struct bce_softc *);
 431 static void     bce_phy_intr(struct bce_softc *);
 432 static void     bce_rx_intr(struct bce_softc *, int, uint16_t);
 433 static void     bce_tx_intr(struct bce_softc *, uint16_t);
 434 static void     bce_disable_intr(struct bce_softc *);
 435 static void     bce_enable_intr(struct bce_softc *);
 436 static void     bce_reenable_intr(struct bce_softc *);
 437
 438 #ifdef DEVICE_POLLING
 439 static void     bce_poll(struct ifnet *, enum poll_cmd, int);
 440 #endif
 441 static void     bce_intr(struct bce_softc *);
 442 static void     bce_intr_legacy(void *);
 443 static void     bce_intr_msi(void *);
 444 static void     bce_intr_msi_oneshot(void *);
 445 static void     bce_set_rx_mode(struct bce_softc *);
 446 static void     bce_stats_update(struct bce_softc *);
 447 static void     bce_tick(void *);
 448 static void     bce_tick_serialized(struct bce_softc *);
 449 static void     bce_pulse(void *);
 450 static void     bce_pulse_check_msi(struct bce_softc *);
 451 static void     bce_add_sysctls(struct bce_softc *);
 452
 453 static void     bce_coal_change(struct bce_softc *);
 454 static int      bce_sysctl_tx_bds_int(SYSCTL_HANDLER_ARGS);
 455 static int      bce_sysctl_tx_bds(SYSCTL_HANDLER_ARGS);
 456 static int      bce_sysctl_tx_ticks_int(SYSCTL_HANDLER_ARGS);
 457 static int      bce_sysctl_tx_ticks(SYSCTL_HANDLER_ARGS);
 458 static int      bce_sysctl_rx_bds_int(SYSCTL_HANDLER_ARGS);
 459 static int      bce_sysctl_rx_bds(SYSCTL_HANDLER_ARGS);
 460 static int      bce_sysctl_rx_ticks_int(SYSCTL_HANDLER_ARGS);
 461 static int      bce_sysctl_rx_ticks(SYSCTL_HANDLER_ARGS);
 462 static int      bce_sysctl_coal_change(SYSCTL_HANDLER_ARGS,
 463                                        uint32_t *, uint32_t);
 464
 465 /*
 466  * NOTE:
 467  * Don't set bce_tx_ticks_int/bce_tx_ticks to 1023.  Linux's bnx2
 468  * takes 1023 as the TX ticks limit.  However, using 1023 will
 469  * cause 5708(B2) to generate extra interrupts (~2000/s) even when
 470  * there is _no_ network activity on the NIC.
 471  */
 472 static uint32_t bce_tx_bds_int = 255;           /* bcm: 20 */
 473 static uint32_t bce_tx_bds = 255;               /* bcm: 20 */
 474 static uint32_t bce_tx_ticks_int = 1022;        /* bcm: 80 */
 475 static uint32_t bce_tx_ticks = 1022;            /* bcm: 80 */
 476 static uint32_t bce_rx_bds_int = 128;           /* bcm: 6 */
 477 static uint32_t bce_rx_bds = 128;               /* bcm: 6 */
 478 static uint32_t bce_rx_ticks_int = 150;         /* bcm: 18 */
 479 static uint32_t bce_rx_ticks = 150;             /* bcm: 18 */
 480
 481 static int      bce_msi_enable = 1;
 482
 483 static int      bce_rx_pages = RX_PAGES_DEFAULT;
 484 static int      bce_tx_pages = TX_PAGES_DEFAULT;
 485
 486 TUNABLE_INT("hw.bce.tx_bds_int", &bce_tx_bds_int);
 487 TUNABLE_INT("hw.bce.tx_bds", &bce_tx_bds);
 488 TUNABLE_INT("hw.bce.tx_ticks_int", &bce_tx_ticks_int);
 489 TUNABLE_INT("hw.bce.tx_ticks", &bce_tx_ticks);
 490 TUNABLE_INT("hw.bce.rx_bds_int", &bce_rx_bds_int);
 491 TUNABLE_INT("hw.bce.rx_bds", &bce_rx_bds);
 492 TUNABLE_INT("hw.bce.rx_ticks_int", &bce_rx_ticks_int);
 493 TUNABLE_INT("hw.bce.rx_ticks", &bce_rx_ticks);
 494 TUNABLE_INT("hw.bce.msi.enable", &bce_msi_enable);
 495 TUNABLE_INT("hw.bce.rx_pages", &bce_rx_pages);
 496 TUNABLE_INT("hw.bce.tx_pages", &bce_tx_pages);
 497
 498 /****************************************************************************/
 499 /* DragonFly device dispatch table.                                         */
 500 /****************************************************************************/
 501 static device_method_t bce_methods[] = {
 502         /* Device interface */
 503         DEVMETHOD(device_probe,         bce_probe),
 504         DEVMETHOD(device_attach,        bce_attach),
 505         DEVMETHOD(device_detach,        bce_detach),
 506         DEVMETHOD(device_shutdown,      bce_shutdown),
 507
 508         /* bus interface */
 509         DEVMETHOD(bus_print_child,      bus_generic_print_child),
 510         DEVMETHOD(bus_driver_added,     bus_generic_driver_added),
 511
 512         /* MII interface */
 513         DEVMETHOD(miibus_readreg,       bce_miibus_read_reg),
 514         DEVMETHOD(miibus_writereg,      bce_miibus_write_reg),
 515         DEVMETHOD(miibus_statchg,       bce_miibus_statchg),
 516
 517         { 0, 0 }
 518 };
 519
 520 static driver_t bce_driver = {
 521         "bce",
 522         bce_methods,
 523         sizeof(struct bce_softc)
 524 };
 525
 526 static devclass_t bce_devclass;
 527
 528
 529 DECLARE_DUMMY_MODULE(if_bce);
 530 MODULE_DEPEND(bce, miibus, 1, 1, 1);
 531 DRIVER_MODULE(if_bce, pci, bce_driver, bce_devclass, NULL, NULL);
 532 DRIVER_MODULE(miibus, bce, miibus_driver, miibus_devclass, NULL, NULL);
 533
 534
 535 /****************************************************************************/
 536 /* Device probe function.                                                   */
 537 /*                                                                          */
 538 /* Compares the device to the driver's list of supported devices and        */
 539 /* reports back to the OS whether this is the right driver for the device.  */
 540 /*                                                                          */
 541 /* Returns:                                                                 */
 542 /*   BUS_PROBE_DEFAULT on success, positive value on failure.               */
 543 /****************************************************************************/
 544 static int
 545 bce_probe(device_t dev)
 546 {
 547         struct bce_type *t;
 548         uint16_t vid, did, svid, sdid;
 549
 550         /* Get the data for the device to be probed. */
 551         vid  = pci_get_vendor(dev);
 552         did  = pci_get_device(dev);
 553         svid = pci_get_subvendor(dev);
 554         sdid = pci_get_subdevice(dev);
 555
 556         /* Look through the list of known devices for a match. */
 557         for (t = bce_devs; t->bce_name != NULL; ++t) {
 558                 if (vid == t->bce_vid && did == t->bce_did &&
 559                     (svid == t->bce_svid || t->bce_svid == PCI_ANY_ID) &&
 560                     (sdid == t->bce_sdid || t->bce_sdid == PCI_ANY_ID)) {
 561                         uint32_t revid = pci_read_config(dev, PCIR_REVID, 4);
 562                         char *descbuf;
 563
 564                         descbuf = kmalloc(BCE_DEVDESC_MAX, M_TEMP, M_WAITOK);
 565
 566                         /* Print out the device identity. */
 567                         ksnprintf(descbuf, BCE_DEVDESC_MAX, "%s (%c%d)",
 568                                   t->bce_name,
 569                                   ((revid & 0xf0) >> 4) + 'A', revid & 0xf);
 570
 571                         device_set_desc_copy(dev, descbuf);
 572                         kfree(descbuf, M_TEMP);
 573                         return 0;
 574                 }
 575         }
 576         return ENXIO;
 577 }
 578
 579
 580 /****************************************************************************/
 581 /* PCI Capabilities Probe Function.                                         */
 582 /*                                                                          */
 583 /* Walks the PCI capabiites list for the device to find what features are   */
 584 /* supported.                                                               */
 585 /*                                                                          */
 586 /* Returns:                                                                 */
 587 /*   None.                                                                  */
 588 /****************************************************************************/
 589 static void
 590 bce_print_adapter_info(struct bce_softc *sc)
 591 {
 592         device_printf(sc->bce_dev, "ASIC (0x%08X); ", sc->bce_chipid);
 593
 594         kprintf("Rev (%c%d); ", ((BCE_CHIP_ID(sc) & 0xf000) >> 12) + 'A',
 595                 ((BCE_CHIP_ID(sc) & 0x0ff0) >> 4));
 596
 597         /* Bus info. */
 598         if (sc->bce_flags & BCE_PCIE_FLAG) {
 599                 kprintf("Bus (PCIe x%d, ", sc->link_width);
 600                 switch (sc->link_speed) {
 601                 case 1:
 602                         kprintf("2.5Gbps); ");
 603                         break;
 604                 case 2:
 605                         kprintf("5Gbps); ");
 606                         break;
 607                 default:
 608                         kprintf("Unknown link speed); ");
 609                         break;
 610                 }
 611         } else {
 612                 kprintf("Bus (PCI%s, %s, %dMHz); ",
 613                     ((sc->bce_flags & BCE_PCIX_FLAG) ? "-X" : ""),
 614                     ((sc->bce_flags & BCE_PCI_32BIT_FLAG) ? "32-bit" : "64-bit"),
 615                     sc->bus_speed_mhz);
 616         }
 617
 618         /* Firmware version and device features. */
 619         kprintf("B/C (%s)", sc->bce_bc_ver);
 620
 621         if ((sc->bce_flags & BCE_MFW_ENABLE_FLAG) ||
 622             (sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)) {
 623                 kprintf("; Flags(");
 624                 if (sc->bce_flags & BCE_MFW_ENABLE_FLAG)
 625                         kprintf("MFW[%s]", sc->bce_mfw_ver);
 626                 if (sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
 627                         kprintf(" 2.5G");
 628                 kprintf(")");
 629         }
 630         kprintf("\n");
 631 }
 632
 633
 634 /****************************************************************************/
 635 /* PCI Capabilities Probe Function.                                         */
 636 /*                                                                          */
 637 /* Walks the PCI capabiites list for the device to find what features are   */
 638 /* supported.                                                               */
 639 /*                                                                          */
 640 /* Returns:                                                                 */
 641 /*   None.                                                                  */
 642 /****************************************************************************/
 643 static void
 644 bce_probe_pci_caps(struct bce_softc *sc)
 645 {
 646         device_t dev = sc->bce_dev;
 647         uint8_t ptr;
 648
 649         if (pci_is_pcix(dev))
 650                 sc->bce_cap_flags |= BCE_PCIX_CAPABLE_FLAG;
 651
 652         ptr = pci_get_pciecap_ptr(dev);
 653         if (ptr) {
 654                 uint16_t link_status = pci_read_config(dev, ptr + 0x12, 2);
 655
 656                 sc->link_speed = link_status & 0xf;
 657                 sc->link_width = (link_status >> 4) & 0x3f;
 658                 sc->bce_cap_flags |= BCE_PCIE_CAPABLE_FLAG;
 659                 sc->bce_flags |= BCE_PCIE_FLAG;
 660         }
 661 }
 662
 663
 664 /****************************************************************************/
 665 /* Device attach function.                                                  */
 666 /*                                                                          */
 667 /* Allocates device resources, performs secondary chip identification,      */
 668 /* resets and initializes the hardware, and initializes driver instance     */
 669 /* variables.                                                               */
 670 /*                                                                          */
 671 /* Returns:                                                                 */
 672 /*   0 on success, positive value on failure.                               */
 673 /****************************************************************************/
 674 static int
 675 bce_attach(device_t dev)
 676 {
 677         struct bce_softc *sc = device_get_softc(dev);
 678         struct ifnet *ifp = &sc->arpcom.ac_if;
 679         uint32_t val;
 680         u_int irq_flags;
 681         void (*irq_handle)(void *);
 682         int rid, rc = 0;
 683         int i, j;
 684         struct mii_probe_args mii_args;
 685         uintptr_t mii_priv = 0;
 686
 687         sc->bce_dev = dev;
 688         if_initname(ifp, device_get_name(dev), device_get_unit(dev));
 689
 690         pci_enable_busmaster(dev);
 691
 692         bce_probe_pci_caps(sc);
 693
 694         /* Allocate PCI memory resources. */
 695         rid = PCIR_BAR(0);
 696         sc->bce_res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
 697                                                  RF_ACTIVE | PCI_RF_DENSE);
 698         if (sc->bce_res_mem == NULL) {
 699                 device_printf(dev, "PCI memory allocation failed\n");
 700                 return ENXIO;
 701         }
 702         sc->bce_btag = rman_get_bustag(sc->bce_res_mem);
 703         sc->bce_bhandle = rman_get_bushandle(sc->bce_res_mem);
 704
 705         /* Allocate PCI IRQ resources. */
 706         sc->bce_irq_type = pci_alloc_1intr(dev, bce_msi_enable,
 707             &sc->bce_irq_rid, &irq_flags);
 708
 709         sc->bce_res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
 710             &sc->bce_irq_rid, irq_flags);
 711         if (sc->bce_res_irq == NULL) {
 712                 device_printf(dev, "PCI map interrupt failed\n");
 713                 rc = ENXIO;
 714                 goto fail;
 715         }
 716
 717         /*
 718          * Configure byte swap and enable indirect register access.
 719          * Rely on CPU to do target byte swapping on big endian systems.
 720          * Access to registers outside of PCI configurtion space are not
 721          * valid until this is done.
 722          */
 723         pci_write_config(dev, BCE_PCICFG_MISC_CONFIG,
 724                          BCE_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
 725                          BCE_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP, 4);
 726
 727         /* Save ASIC revsion info. */
 728         sc->bce_chipid =  REG_RD(sc, BCE_MISC_ID);
 729
 730         /* Weed out any non-production controller revisions. */
 731         switch (BCE_CHIP_ID(sc)) {
 732         case BCE_CHIP_ID_5706_A0:
 733         case BCE_CHIP_ID_5706_A1:
 734         case BCE_CHIP_ID_5708_A0:
 735         case BCE_CHIP_ID_5708_B0:
 736         case BCE_CHIP_ID_5709_A0:
 737         case BCE_CHIP_ID_5709_B0:
 738         case BCE_CHIP_ID_5709_B1:
 739 #ifdef foo
 740         /* 5709C B2 seems to work fine */
 741         case BCE_CHIP_ID_5709_B2:
 742 #endif
 743                 device_printf(dev, "Unsupported chip id 0x%08x!\n",
 744                               BCE_CHIP_ID(sc));
 745                 rc = ENODEV;
 746                 goto fail;
 747         }
 748
 749         mii_priv |= BRGPHY_FLAG_WIRESPEED;
 750         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709) {
 751                 if (BCE_CHIP_REV(sc) == BCE_CHIP_REV_Ax ||
 752                     BCE_CHIP_REV(sc) == BCE_CHIP_REV_Bx)
 753                         mii_priv |= BRGPHY_FLAG_NO_EARLYDAC;
 754         } else {
 755                 mii_priv |= BRGPHY_FLAG_BER_BUG;
 756         }
 757
 758         if (sc->bce_irq_type == PCI_INTR_TYPE_LEGACY) {
 759                 irq_handle = bce_intr_legacy;
 760         } else if (sc->bce_irq_type == PCI_INTR_TYPE_MSI) {
 761                 irq_handle = bce_intr_msi;
 762                 if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709) {
 763                         irq_handle = bce_intr_msi_oneshot;
 764                         sc->bce_flags |= BCE_ONESHOT_MSI_FLAG;
 765                 }
 766         } else {
 767                 panic("%s: unsupported intr type %d",
 768                     device_get_nameunit(dev), sc->bce_irq_type);
 769         }
 770
 771         /*
 772          * Find the base address for shared memory access.
 773          * Newer versions of bootcode use a signature and offset
 774          * while older versions use a fixed address.
 775          */
 776         val = REG_RD_IND(sc, BCE_SHM_HDR_SIGNATURE);
 777         if ((val & BCE_SHM_HDR_SIGNATURE_SIG_MASK) ==
 778             BCE_SHM_HDR_SIGNATURE_SIG) {
 779                 /* Multi-port devices use different offsets in shared memory. */
 780                 sc->bce_shmem_base = REG_RD_IND(sc,
 781                     BCE_SHM_HDR_ADDR_0 + (pci_get_function(sc->bce_dev) << 2));
 782         } else {
 783                 sc->bce_shmem_base = HOST_VIEW_SHMEM_BASE;
 784         }
 785         DBPRINT(sc, BCE_INFO, "bce_shmem_base = 0x%08X\n", sc->bce_shmem_base);
 786
 787         /* Fetch the bootcode revision. */
 788         val = bce_shmem_rd(sc, BCE_DEV_INFO_BC_REV);
 789         for (i = 0, j = 0; i < 3; i++) {
 790                 uint8_t num;
 791                 int k, skip0;
 792
 793                 num = (uint8_t)(val >> (24 - (i * 8)));
 794                 for (k = 100, skip0 = 1; k >= 1; num %= k, k /= 10) {
 795                         if (num >= k || !skip0 || k == 1) {
 796                                 sc->bce_bc_ver[j++] = (num / k) + '0';
 797                                 skip0 = 0;
 798                         }
 799                 }
 800                 if (i != 2)
 801                         sc->bce_bc_ver[j++] = '.';
 802         }
 803
 804         /* Check if any management firwmare is running. */
 805         val = bce_shmem_rd(sc, BCE_PORT_FEATURE);
 806         if (val & BCE_PORT_FEATURE_ASF_ENABLED) {
 807                 sc->bce_flags |= BCE_MFW_ENABLE_FLAG;
 808
 809                 /* Allow time for firmware to enter the running state. */
 810                 for (i = 0; i < 30; i++) {
 811                         val = bce_shmem_rd(sc, BCE_BC_STATE_CONDITION);
 812                         if (val & BCE_CONDITION_MFW_RUN_MASK)
 813                                 break;
 814                         DELAY(10000);
 815                 }
 816         }
 817
 818         /* Check the current bootcode state. */
 819         val = bce_shmem_rd(sc, BCE_BC_STATE_CONDITION) &
 820             BCE_CONDITION_MFW_RUN_MASK;
 821         if (val != BCE_CONDITION_MFW_RUN_UNKNOWN &&
 822             val != BCE_CONDITION_MFW_RUN_NONE) {
 823                 uint32_t addr = bce_shmem_rd(sc, BCE_MFW_VER_PTR);
 824
 825                 for (i = 0, j = 0; j < 3; j++) {
 826                         val = bce_reg_rd_ind(sc, addr + j * 4);
 827                         val = bswap32(val);
 828                         memcpy(&sc->bce_mfw_ver[i], &val, 4);
 829                         i += 4;
 830                 }
 831         }
 832
 833         /* Get PCI bus information (speed and type). */
 834         val = REG_RD(sc, BCE_PCICFG_MISC_STATUS);
 835         if (val & BCE_PCICFG_MISC_STATUS_PCIX_DET) {
 836                 uint32_t clkreg;
 837
 838                 sc->bce_flags |= BCE_PCIX_FLAG;
 839
 840                 clkreg = REG_RD(sc, BCE_PCICFG_PCI_CLOCK_CONTROL_BITS) &
 841                          BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET;
 842                 switch (clkreg) {
 843                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_133MHZ:
 844                         sc->bus_speed_mhz = 133;
 845                         break;
 846
 847                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_95MHZ:
 848                         sc->bus_speed_mhz = 100;
 849                         break;
 850
 851                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_66MHZ:
 852                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_80MHZ:
 853                         sc->bus_speed_mhz = 66;
 854                         break;
 855
 856                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_48MHZ:
 857                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_55MHZ:
 858                         sc->bus_speed_mhz = 50;
 859                         break;
 860
 861                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_LOW:
 862                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_32MHZ:
 863                 case BCE_PCICFG_PCI_CLOCK_CONTROL_BITS_PCI_CLK_SPD_DET_38MHZ:
 864                         sc->bus_speed_mhz = 33;
 865                         break;
 866                 }
 867         } else {
 868                 if (val & BCE_PCICFG_MISC_STATUS_M66EN)
 869                         sc->bus_speed_mhz = 66;
 870                 else
 871                         sc->bus_speed_mhz = 33;
 872         }
 873
 874         if (val & BCE_PCICFG_MISC_STATUS_32BIT_DET)
 875                 sc->bce_flags |= BCE_PCI_32BIT_FLAG;
 876
 877         /* Reset the controller. */
 878         rc = bce_reset(sc, BCE_DRV_MSG_CODE_RESET);
 879         if (rc != 0)
 880                 goto fail;
 881
 882         /* Initialize the controller. */
 883         rc = bce_chipinit(sc);
 884         if (rc != 0) {
 885                 device_printf(dev, "Controller initialization failed!\n");
 886                 goto fail;
 887         }
 888
 889         /* Perform NVRAM test. */
 890         rc = bce_nvram_test(sc);
 891         if (rc != 0) {
 892                 device_printf(dev, "NVRAM test failed!\n");
 893                 goto fail;
 894         }
 895
 896         /* Fetch the permanent Ethernet MAC address. */
 897         bce_get_mac_addr(sc);
 898
 899         /*
 900          * Trip points control how many BDs
 901          * should be ready before generating an
 902          * interrupt while ticks control how long
 903          * a BD can sit in the chain before
 904          * generating an interrupt.  Set the default
 905          * values for the RX and TX rings.
 906          */
 907
 908 #ifdef BCE_DRBUG
 909         /* Force more frequent interrupts. */
 910         sc->bce_tx_quick_cons_trip_int = 1;
 911         sc->bce_tx_quick_cons_trip     = 1;
 912         sc->bce_tx_ticks_int           = 0;
 913         sc->bce_tx_ticks               = 0;
 914
 915         sc->bce_rx_quick_cons_trip_int = 1;
 916         sc->bce_rx_quick_cons_trip     = 1;
 917         sc->bce_rx_ticks_int           = 0;
 918         sc->bce_rx_ticks               = 0;
 919 #else
 920         sc->bce_tx_quick_cons_trip_int = bce_tx_bds_int;
 921         sc->bce_tx_quick_cons_trip     = bce_tx_bds;
 922         sc->bce_tx_ticks_int           = bce_tx_ticks_int;
 923         sc->bce_tx_ticks               = bce_tx_ticks;
 924
 925         sc->bce_rx_quick_cons_trip_int = bce_rx_bds_int;
 926         sc->bce_rx_quick_cons_trip     = bce_rx_bds;
 927         sc->bce_rx_ticks_int           = bce_rx_ticks_int;
 928         sc->bce_rx_ticks               = bce_rx_ticks;
 929 #endif
 930
 931         /* Update statistics once every second. */
 932         sc->bce_stats_ticks = 1000000 & 0xffff00;
 933
 934         /* Find the media type for the adapter. */
 935         bce_get_media(sc);
 936
 937         /* Allocate DMA memory resources. */
 938         rc = bce_dma_alloc(sc);
 939         if (rc != 0) {
 940                 device_printf(dev, "DMA resource allocation failed!\n");
 941                 goto fail;
 942         }
 943
 944         /* Initialize the ifnet interface. */
 945         ifp->if_softc = sc;
 946         ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
 947         ifp->if_ioctl = bce_ioctl;
 948         ifp->if_start = bce_start;
 949         ifp->if_init = bce_init;
 950         ifp->if_watchdog = bce_watchdog;
 951 #ifdef DEVICE_POLLING
 952         ifp->if_poll = bce_poll;
 953 #endif
 954         ifp->if_mtu = ETHERMTU;
 955         ifp->if_hwassist = BCE_IF_HWASSIST;
 956         ifp->if_capabilities = BCE_IF_CAPABILITIES;
 957         ifp->if_capenable = ifp->if_capabilities;
 958         ifq_set_maxlen(&ifp->if_snd, USABLE_TX_BD(sc));
 959         ifq_set_ready(&ifp->if_snd);
 960
 961         if (sc->bce_phy_flags & BCE_PHY_2_5G_CAPABLE_FLAG)
 962                 ifp->if_baudrate = IF_Gbps(2.5);
 963         else
 964                 ifp->if_baudrate = IF_Gbps(1);
 965
 966         /* Assume a standard 1500 byte MTU size for mbuf allocations. */
 967         sc->mbuf_alloc_size  = MCLBYTES;
 968
 969         /*
 970          * Look for our PHY.
 971          */
 972         mii_probe_args_init(&mii_args, bce_ifmedia_upd, bce_ifmedia_sts);
 973         mii_args.mii_probemask = 1 << sc->bce_phy_addr;
 974         mii_args.mii_privtag = MII_PRIVTAG_BRGPHY;
 975         mii_args.mii_priv = mii_priv;
 976
 977         rc = mii_probe(dev, &sc->bce_miibus, &mii_args);
 978         if (rc != 0) {
 979                 device_printf(dev, "PHY probe failed!\n");
 980                 goto fail;
 981         }
 982
 983         /* Attach to the Ethernet interface list. */
 984         ether_ifattach(ifp, sc->eaddr, NULL);
 985
 986         callout_init_mp(&sc->bce_tick_callout);
 987         callout_init_mp(&sc->bce_pulse_callout);
 988
 989         /* Hookup IRQ last. */
 990         rc = bus_setup_intr(dev, sc->bce_res_irq, INTR_MPSAFE, irq_handle, sc,
 991                             &sc->bce_intrhand, ifp->if_serializer);
 992         if (rc != 0) {
 993                 device_printf(dev, "Failed to setup IRQ!\n");
 994                 ether_ifdetach(ifp);
 995                 goto fail;
 996         }
 997
 998         ifp->if_cpuid = rman_get_cpuid(sc->bce_res_irq);
 999         KKASSERT(ifp->if_cpuid >= 0 && ifp->if_cpuid < ncpus);
1000
1001         /* Print some important debugging info. */
1002         DBRUN(BCE_INFO, bce_dump_driver_state(sc));
1003
1004         /* Add the supported sysctls to the kernel. */
1005         bce_add_sysctls(sc);
1006
1007         /*
1008          * The chip reset earlier notified the bootcode that
1009          * a driver is present.  We now need to start our pulse
1010          * routine so that the bootcode is reminded that we're
1011          * still running.
1012          */
1013         bce_pulse(sc);
1014
1015         /* Get the firmware running so IPMI still works */
1016         bce_mgmt_init(sc);
1017
1018         if (bootverbose)
1019                 bce_print_adapter_info(sc);
1020
1021         return 0;
1022 fail:
1023         bce_detach(dev);
1024         return(rc);
1025 }
1026
1027
1028 /****************************************************************************/
1029 /* Device detach function.                                                  */
1030 /*                                                                          */
1031 /* Stops the controller, resets the controller, and releases resources.     */
1032 /*                                                                          */
1033 /* Returns:                                                                 */
1034 /*   0 on success, positive value on failure.                               */
1035 /****************************************************************************/
1036 static int
1037 bce_detach(device_t dev)
1038 {
1039         struct bce_softc *sc = device_get_softc(dev);
1040
1041         if (device_is_attached(dev)) {
1042                 struct ifnet *ifp = &sc->arpcom.ac_if;
1043                 uint32_t msg;
1044
1045                 /* Stop and reset the controller. */
1046                 lwkt_serialize_enter(ifp->if_serializer);
1047                 callout_stop(&sc->bce_pulse_callout);
1048                 bce_stop(sc);
1049                 if (sc->bce_flags & BCE_NO_WOL_FLAG)
1050                         msg = BCE_DRV_MSG_CODE_UNLOAD_LNK_DN;
1051                 else
1052                         msg = BCE_DRV_MSG_CODE_UNLOAD;
1053                 bce_reset(sc, msg);
1054                 bus_teardown_intr(dev, sc->bce_res_irq, sc->bce_intrhand);
1055                 lwkt_serialize_exit(ifp->if_serializer);
1056
1057                 ether_ifdetach(ifp);
1058         }
1059
1060         /* If we have a child device on the MII bus remove it too. */
1061         if (sc->bce_miibus)
1062                 device_delete_child(dev, sc->bce_miibus);
1063         bus_generic_detach(dev);
1064
1065         if (sc->bce_res_irq != NULL) {
1066                 bus_release_resource(dev, SYS_RES_IRQ, sc->bce_irq_rid,
1067                     sc->bce_res_irq);
1068         }
1069
1070         if (sc->bce_irq_type == PCI_INTR_TYPE_MSI)
1071                 pci_release_msi(dev);
1072
1073         if (sc->bce_res_mem != NULL) {
1074                 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0),
1075                                      sc->bce_res_mem);
1076         }
1077
1078         bce_dma_free(sc);
1079
1080         if (sc->bce_sysctl_tree != NULL)
1081                 sysctl_ctx_free(&sc->bce_sysctl_ctx);
1082
1083         return 0;
1084 }
1085
1086
1087 /****************************************************************************/
1088 /* Device shutdown function.                                                */
1089 /*                                                                          */
1090 /* Stops and resets the controller.                                         */
1091 /*                                                                          */
1092 /* Returns:                                                                 */
1093 /*   Nothing                                                                */
1094 /****************************************************************************/
1095 static void
1096 bce_shutdown(device_t dev)
1097 {
1098         struct bce_softc *sc = device_get_softc(dev);
1099         struct ifnet *ifp = &sc->arpcom.ac_if;
1100         uint32_t msg;
1101
1102         lwkt_serialize_enter(ifp->if_serializer);
1103         bce_stop(sc);
1104         if (sc->bce_flags & BCE_NO_WOL_FLAG)
1105                 msg = BCE_DRV_MSG_CODE_UNLOAD_LNK_DN;
1106         else
1107                 msg = BCE_DRV_MSG_CODE_UNLOAD;
1108         bce_reset(sc, msg);
1109         lwkt_serialize_exit(ifp->if_serializer);
1110 }
1111
1112
1113 /****************************************************************************/
1114 /* Indirect register read.                                                  */
1115 /*                                                                          */
1116 /* Reads NetXtreme II registers using an index/data register pair in PCI    */
1117 /* configuration space.  Using this mechanism avoids issues with posted     */
1118 /* reads but is much slower than memory-mapped I/O.                         */
1119 /*                                                                          */
1120 /* Returns:                                                                 */
1121 /*   The value of the register.                                             */
1122 /****************************************************************************/
1123 static uint32_t
1124 bce_reg_rd_ind(struct bce_softc *sc, uint32_t offset)
1125 {
1126         device_t dev = sc->bce_dev;
1127
1128         pci_write_config(dev, BCE_PCICFG_REG_WINDOW_ADDRESS, offset, 4);
1129 #ifdef BCE_DEBUG
1130         {
1131                 uint32_t val;
1132                 val = pci_read_config(dev, BCE_PCICFG_REG_WINDOW, 4);
1133                 DBPRINT(sc, BCE_EXCESSIVE,
1134                         "%s(); offset = 0x%08X, val = 0x%08X\n",
1135                         __func__, offset, val);
1136                 return val;
1137         }
1138 #else
1139         return pci_read_config(dev, BCE_PCICFG_REG_WINDOW, 4);
1140 #endif
1141 }
1142
1143
1144 /****************************************************************************/
1145 /* Indirect register write.                                                 */
1146 /*                                                                          */
1147 /* Writes NetXtreme II registers using an index/data register pair in PCI   */
1148 /* configuration space.  Using this mechanism avoids issues with posted     */
1149 /* writes but is muchh slower than memory-mapped I/O.                       */
1150 /*                                                                          */
1151 /* Returns:                                                                 */
1152 /*   Nothing.                                                               */
1153 /****************************************************************************/
1154 static void
1155 bce_reg_wr_ind(struct bce_softc *sc, uint32_t offset, uint32_t val)
1156 {
1157         device_t dev = sc->bce_dev;
1158
1159         DBPRINT(sc, BCE_EXCESSIVE, "%s(); offset = 0x%08X, val = 0x%08X\n",
1160                 __func__, offset, val);
1161
1162         pci_write_config(dev, BCE_PCICFG_REG_WINDOW_ADDRESS, offset, 4);
1163         pci_write_config(dev, BCE_PCICFG_REG_WINDOW, val, 4);
1164 }
1165
1166
1167 /****************************************************************************/
1168 /* Shared memory write.                                                     */
1169 /*                                                                          */
1170 /* Writes NetXtreme II shared memory region.                                */
1171 /*                                                                          */
1172 /* Returns:                                                                 */
1173 /*   Nothing.                                                               */
1174 /****************************************************************************/
1175 static void
1176 bce_shmem_wr(struct bce_softc *sc, uint32_t offset, uint32_t val)
1177 {
1178         bce_reg_wr_ind(sc, sc->bce_shmem_base + offset, val);
1179 }
1180
1181
1182 /****************************************************************************/
1183 /* Shared memory read.                                                      */
1184 /*                                                                          */
1185 /* Reads NetXtreme II shared memory region.                                 */
1186 /*                                                                          */
1187 /* Returns:                                                                 */
1188 /*   The 32 bit value read.                                                 */
1189 /****************************************************************************/
1190 static u32
1191 bce_shmem_rd(struct bce_softc *sc, uint32_t offset)
1192 {
1193         return bce_reg_rd_ind(sc, sc->bce_shmem_base + offset);
1194 }
1195
1196
1197 /****************************************************************************/
1198 /* Context memory write.                                                    */
1199 /*                                                                          */
1200 /* The NetXtreme II controller uses context memory to track connection      */
1201 /* information for L2 and higher network protocols.                         */
1202 /*                                                                          */
1203 /* Returns:                                                                 */
1204 /*   Nothing.                                                               */
1205 /****************************************************************************/
1206 static void
1207 bce_ctx_wr(struct bce_softc *sc, uint32_t cid_addr, uint32_t ctx_offset,
1208     uint32_t ctx_val)
1209 {
1210         uint32_t idx, offset = ctx_offset + cid_addr;
1211         uint32_t val, retry_cnt = 5;
1212
1213         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
1214             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
1215                 REG_WR(sc, BCE_CTX_CTX_DATA, ctx_val);
1216                 REG_WR(sc, BCE_CTX_CTX_CTRL, (offset | BCE_CTX_CTX_CTRL_WRITE_REQ));
1217
1218                 for (idx = 0; idx < retry_cnt; idx++) {
1219                         val = REG_RD(sc, BCE_CTX_CTX_CTRL);
1220                         if ((val & BCE_CTX_CTX_CTRL_WRITE_REQ) == 0)
1221                                 break;
1222                         DELAY(5);
1223                 }
1224
1225                 if (val & BCE_CTX_CTX_CTRL_WRITE_REQ) {
1226                         device_printf(sc->bce_dev,
1227                             "Unable to write CTX memory: "
1228                             "cid_addr = 0x%08X, offset = 0x%08X!\n",
1229                             cid_addr, ctx_offset);
1230                 }
1231         } else {
1232                 REG_WR(sc, BCE_CTX_DATA_ADR, offset);
1233                 REG_WR(sc, BCE_CTX_DATA, ctx_val);
1234         }
1235 }
1236
1237
1238 /****************************************************************************/
1239 /* PHY register read.                                                       */
1240 /*                                                                          */
1241 /* Implements register reads on the MII bus.                                */
1242 /*                                                                          */
1243 /* Returns:                                                                 */
1244 /*   The value of the register.                                             */
1245 /****************************************************************************/
1246 static int
1247 bce_miibus_read_reg(device_t dev, int phy, int reg)
1248 {
1249         struct bce_softc *sc = device_get_softc(dev);
1250         uint32_t val;
1251         int i;
1252
1253         /* Make sure we are accessing the correct PHY address. */
1254         KASSERT(phy == sc->bce_phy_addr,
1255             ("invalid phyno %d, should be %d\n", phy, sc->bce_phy_addr));
1256
1257         if (sc->bce_phy_flags & BCE_PHY_INT_MODE_AUTO_POLLING_FLAG) {
1258                 val = REG_RD(sc, BCE_EMAC_MDIO_MODE);
1259                 val &= ~BCE_EMAC_MDIO_MODE_AUTO_POLL;
1260
1261                 REG_WR(sc, BCE_EMAC_MDIO_MODE, val);
1262                 REG_RD(sc, BCE_EMAC_MDIO_MODE);
1263
1264                 DELAY(40);
1265         }
1266
1267         val = BCE_MIPHY(phy) | BCE_MIREG(reg) |
1268               BCE_EMAC_MDIO_COMM_COMMAND_READ | BCE_EMAC_MDIO_COMM_DISEXT |
1269               BCE_EMAC_MDIO_COMM_START_BUSY;
1270         REG_WR(sc, BCE_EMAC_MDIO_COMM, val);
1271
1272         for (i = 0; i < BCE_PHY_TIMEOUT; i++) {
1273                 DELAY(10);
1274
1275                 val = REG_RD(sc, BCE_EMAC_MDIO_COMM);
1276                 if (!(val & BCE_EMAC_MDIO_COMM_START_BUSY)) {
1277                         DELAY(5);
1278
1279                         val = REG_RD(sc, BCE_EMAC_MDIO_COMM);
1280                         val &= BCE_EMAC_MDIO_COMM_DATA;
1281                         break;
1282                 }
1283         }
1284
1285         if (val & BCE_EMAC_MDIO_COMM_START_BUSY) {
1286                 if_printf(&sc->arpcom.ac_if,
1287                           "Error: PHY read timeout! phy = %d, reg = 0x%04X\n",
1288                           phy, reg);
1289                 val = 0x0;
1290         } else {
1291                 val = REG_RD(sc, BCE_EMAC_MDIO_COMM);
1292         }
1293
1294         DBPRINT(sc, BCE_EXCESSIVE,
1295                 "%s(): phy = %d, reg = 0x%04X, val = 0x%04X\n",
1296                 __func__, phy, (uint16_t)reg & 0xffff, (uint16_t) val & 0xffff);
1297
1298         if (sc->bce_phy_flags & BCE_PHY_INT_MODE_AUTO_POLLING_FLAG) {
1299                 val = REG_RD(sc, BCE_EMAC_MDIO_MODE);
1300                 val |= BCE_EMAC_MDIO_MODE_AUTO_POLL;
1301
1302                 REG_WR(sc, BCE_EMAC_MDIO_MODE, val);
1303                 REG_RD(sc, BCE_EMAC_MDIO_MODE);
1304
1305                 DELAY(40);
1306         }
1307         return (val & 0xffff);
1308 }
1309
1310
1311 /****************************************************************************/
1312 /* PHY register write.                                                      */
1313 /*                                                                          */
1314 /* Implements register writes on the MII bus.                               */
1315 /*                                                                          */
1316 /* Returns:                                                                 */
1317 /*   The value of the register.                                             */
1318 /****************************************************************************/
1319 static int
1320 bce_miibus_write_reg(device_t dev, int phy, int reg, int val)
1321 {
1322         struct bce_softc *sc = device_get_softc(dev);
1323         uint32_t val1;
1324         int i;
1325
1326         /* Make sure we are accessing the correct PHY address. */
1327         KASSERT(phy == sc->bce_phy_addr,
1328             ("invalid phyno %d, should be %d\n", phy, sc->bce_phy_addr));
1329
1330         DBPRINT(sc, BCE_EXCESSIVE,
1331                 "%s(): phy = %d, reg = 0x%04X, val = 0x%04X\n",
1332                 __func__, phy, (uint16_t)(reg & 0xffff),
1333                 (uint16_t)(val & 0xffff));
1334
1335         if (sc->bce_phy_flags & BCE_PHY_INT_MODE_AUTO_POLLING_FLAG) {
1336                 val1 = REG_RD(sc, BCE_EMAC_MDIO_MODE);
1337                 val1 &= ~BCE_EMAC_MDIO_MODE_AUTO_POLL;
1338
1339                 REG_WR(sc, BCE_EMAC_MDIO_MODE, val1);
1340                 REG_RD(sc, BCE_EMAC_MDIO_MODE);
1341
1342                 DELAY(40);
1343         }
1344
1345         val1 = BCE_MIPHY(phy) | BCE_MIREG(reg) | val |
1346                 BCE_EMAC_MDIO_COMM_COMMAND_WRITE |
1347                 BCE_EMAC_MDIO_COMM_START_BUSY | BCE_EMAC_MDIO_COMM_DISEXT;
1348         REG_WR(sc, BCE_EMAC_MDIO_COMM, val1);
1349
1350         for (i = 0; i < BCE_PHY_TIMEOUT; i++) {
1351                 DELAY(10);
1352
1353                 val1 = REG_RD(sc, BCE_EMAC_MDIO_COMM);
1354                 if (!(val1 & BCE_EMAC_MDIO_COMM_START_BUSY)) {
1355                         DELAY(5);
1356                         break;
1357                 }
1358         }
1359
1360         if (val1 & BCE_EMAC_MDIO_COMM_START_BUSY)
1361                 if_printf(&sc->arpcom.ac_if, "PHY write timeout!\n");
1362
1363         if (sc->bce_phy_flags & BCE_PHY_INT_MODE_AUTO_POLLING_FLAG) {
1364                 val1 = REG_RD(sc, BCE_EMAC_MDIO_MODE);
1365                 val1 |= BCE_EMAC_MDIO_MODE_AUTO_POLL;
1366
1367                 REG_WR(sc, BCE_EMAC_MDIO_MODE, val1);
1368                 REG_RD(sc, BCE_EMAC_MDIO_MODE);
1369
1370                 DELAY(40);
1371         }
1372         return 0;
1373 }
1374
1375
1376 /****************************************************************************/
1377 /* MII bus status change.                                                   */
1378 /*                                                                          */
1379 /* Called by the MII bus driver when the PHY establishes link to set the    */
1380 /* MAC interface registers.                                                 */
1381 /*                                                                          */
1382 /* Returns:                                                                 */
1383 /*   Nothing.                                                               */
1384 /****************************************************************************/
1385 static void
1386 bce_miibus_statchg(device_t dev)
1387 {
1388         struct bce_softc *sc = device_get_softc(dev);
1389         struct mii_data *mii = device_get_softc(sc->bce_miibus);
1390
1391         DBPRINT(sc, BCE_INFO, "mii_media_active = 0x%08X\n",
1392                 mii->mii_media_active);
1393
1394 #ifdef BCE_DEBUG
1395         /* Decode the interface media flags. */
1396         if_printf(&sc->arpcom.ac_if, "Media: ( ");
1397         switch(IFM_TYPE(mii->mii_media_active)) {
1398         case IFM_ETHER:
1399                 kprintf("Ethernet )");
1400                 break;
1401         default:
1402                 kprintf("Unknown )");
1403                 break;
1404         }
1405
1406         kprintf(" Media Options: ( ");
1407         switch(IFM_SUBTYPE(mii->mii_media_active)) {
1408         case IFM_AUTO:
1409                 kprintf("Autoselect )");
1410                 break;
1411         case IFM_MANUAL:
1412                 kprintf("Manual )");
1413                 break;
1414         case IFM_NONE:
1415                 kprintf("None )");
1416                 break;
1417         case IFM_10_T:
1418                 kprintf("10Base-T )");
1419                 break;
1420         case IFM_100_TX:
1421                 kprintf("100Base-TX )");
1422                 break;
1423         case IFM_1000_SX:
1424                 kprintf("1000Base-SX )");
1425                 break;
1426         case IFM_1000_T:
1427                 kprintf("1000Base-T )");
1428                 break;
1429         default:
1430                 kprintf("Other )");
1431                 break;
1432         }
1433
1434         kprintf(" Global Options: (");
1435         if (mii->mii_media_active & IFM_FDX)
1436                 kprintf(" FullDuplex");
1437         if (mii->mii_media_active & IFM_HDX)
1438                 kprintf(" HalfDuplex");
1439         if (mii->mii_media_active & IFM_LOOP)
1440                 kprintf(" Loopback");
1441         if (mii->mii_media_active & IFM_FLAG0)
1442                 kprintf(" Flag0");
1443         if (mii->mii_media_active & IFM_FLAG1)
1444                 kprintf(" Flag1");
1445         if (mii->mii_media_active & IFM_FLAG2)
1446                 kprintf(" Flag2");
1447         kprintf(" )\n");
1448 #endif
1449
1450         BCE_CLRBIT(sc, BCE_EMAC_MODE, BCE_EMAC_MODE_PORT);
1451
1452         /*
1453          * Set MII or GMII interface based on the speed negotiated
1454          * by the PHY.
1455          */
1456         if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T ||
1457             IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) {
1458                 DBPRINT(sc, BCE_INFO, "Setting GMII interface.\n");
1459                 BCE_SETBIT(sc, BCE_EMAC_MODE, BCE_EMAC_MODE_PORT_GMII);
1460         } else {
1461                 DBPRINT(sc, BCE_INFO, "Setting MII interface.\n");
1462                 BCE_SETBIT(sc, BCE_EMAC_MODE, BCE_EMAC_MODE_PORT_MII);
1463         }
1464
1465         /*
1466          * Set half or full duplex based on the duplicity negotiated
1467          * by the PHY.
1468          */
1469         if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) {
1470                 DBPRINT(sc, BCE_INFO, "Setting Full-Duplex interface.\n");
1471                 BCE_CLRBIT(sc, BCE_EMAC_MODE, BCE_EMAC_MODE_HALF_DUPLEX);
1472         } else {
1473                 DBPRINT(sc, BCE_INFO, "Setting Half-Duplex interface.\n");
1474                 BCE_SETBIT(sc, BCE_EMAC_MODE, BCE_EMAC_MODE_HALF_DUPLEX);
1475         }
1476 }
1477
1478
1479 /****************************************************************************/
1480 /* Acquire NVRAM lock.                                                      */
1481 /*                                                                          */
1482 /* Before the NVRAM can be accessed the caller must acquire an NVRAM lock.  */
1483 /* Locks 0 and 2 are reserved, lock 1 is used by firmware and lock 2 is     */
1484 /* for use by the driver.                                                   */
1485 /*                                                                          */
1486 /* Returns:                                                                 */
1487 /*   0 on success, positive value on failure.                               */
1488 /****************************************************************************/
1489 static int
1490 bce_acquire_nvram_lock(struct bce_softc *sc)
1491 {
1492         uint32_t val;
1493         int j;
1494
1495         DBPRINT(sc, BCE_VERBOSE, "Acquiring NVRAM lock.\n");
1496
1497         /* Request access to the flash interface. */
1498         REG_WR(sc, BCE_NVM_SW_ARB, BCE_NVM_SW_ARB_ARB_REQ_SET2);
1499         for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
1500                 val = REG_RD(sc, BCE_NVM_SW_ARB);
1501                 if (val & BCE_NVM_SW_ARB_ARB_ARB2)
1502                         break;
1503
1504                 DELAY(5);
1505         }
1506
1507         if (j >= NVRAM_TIMEOUT_COUNT) {
1508                 DBPRINT(sc, BCE_WARN, "Timeout acquiring NVRAM lock!\n");
1509                 return EBUSY;
1510         }
1511         return 0;
1512 }
1513
1514
1515 /****************************************************************************/
1516 /* Release NVRAM lock.                                                      */
1517 /*                                                                          */
1518 /* When the caller is finished accessing NVRAM the lock must be released.   */
1519 /* Locks 0 and 2 are reserved, lock 1 is used by firmware and lock 2 is     */
1520 /* for use by the driver.                                                   */
1521 /*                                                                          */
1522 /* Returns:                                                                 */
1523 /*   0 on success, positive value on failure.                               */
1524 /****************************************************************************/
1525 static int
1526 bce_release_nvram_lock(struct bce_softc *sc)
1527 {
1528         int j;
1529         uint32_t val;
1530
1531         DBPRINT(sc, BCE_VERBOSE, "Releasing NVRAM lock.\n");
1532
1533         /*
1534          * Relinquish nvram interface.
1535          */
1536         REG_WR(sc, BCE_NVM_SW_ARB, BCE_NVM_SW_ARB_ARB_REQ_CLR2);
1537
1538         for (j = 0; j < NVRAM_TIMEOUT_COUNT; j++) {
1539                 val = REG_RD(sc, BCE_NVM_SW_ARB);
1540                 if (!(val & BCE_NVM_SW_ARB_ARB_ARB2))
1541                         break;
1542
1543                 DELAY(5);
1544         }
1545
1546         if (j >= NVRAM_TIMEOUT_COUNT) {
1547                 DBPRINT(sc, BCE_WARN, "Timeout reeasing NVRAM lock!\n");
1548                 return EBUSY;
1549         }
1550         return 0;
1551 }
1552
1553
1554 /****************************************************************************/
1555 /* Enable NVRAM access.                                                     */
1556 /*                                                                          */
1557 /* Before accessing NVRAM for read or write operations the caller must      */
1558 /* enabled NVRAM access.                                                    */
1559 /*                                                                          */
1560 /* Returns:                                                                 */
1561 /*   Nothing.                                                               */
1562 /****************************************************************************/
1563 static void
1564 bce_enable_nvram_access(struct bce_softc *sc)
1565 {
1566         uint32_t val;
1567
1568         DBPRINT(sc, BCE_VERBOSE, "Enabling NVRAM access.\n");
1569
1570         val = REG_RD(sc, BCE_NVM_ACCESS_ENABLE);
1571         /* Enable both bits, even on read. */
1572         REG_WR(sc, BCE_NVM_ACCESS_ENABLE,
1573                val | BCE_NVM_ACCESS_ENABLE_EN | BCE_NVM_ACCESS_ENABLE_WR_EN);
1574 }
1575
1576
1577 /****************************************************************************/
1578 /* Disable NVRAM access.                                                    */
1579 /*                                                                          */
1580 /* When the caller is finished accessing NVRAM access must be disabled.     */
1581 /*                                                                          */
1582 /* Returns:                                                                 */
1583 /*   Nothing.                                                               */
1584 /****************************************************************************/
1585 static void
1586 bce_disable_nvram_access(struct bce_softc *sc)
1587 {
1588         uint32_t val;
1589
1590         DBPRINT(sc, BCE_VERBOSE, "Disabling NVRAM access.\n");
1591
1592         val = REG_RD(sc, BCE_NVM_ACCESS_ENABLE);
1593
1594         /* Disable both bits, even after read. */
1595         REG_WR(sc, BCE_NVM_ACCESS_ENABLE,
1596                val & ~(BCE_NVM_ACCESS_ENABLE_EN | BCE_NVM_ACCESS_ENABLE_WR_EN));
1597 }
1598
1599
1600 /****************************************************************************/
1601 /* Read a dword (32 bits) from NVRAM.                                       */
1602 /*                                                                          */
1603 /* Read a 32 bit word from NVRAM.  The caller is assumed to have already    */
1604 /* obtained the NVRAM lock and enabled the controller for NVRAM access.     */
1605 /*                                                                          */
1606 /* Returns:                                                                 */
1607 /*   0 on success and the 32 bit value read, positive value on failure.     */
1608 /****************************************************************************/
1609 static int
1610 bce_nvram_read_dword(struct bce_softc *sc, uint32_t offset, uint8_t *ret_val,
1611                      uint32_t cmd_flags)
1612 {
1613         uint32_t cmd;
1614         int i, rc = 0;
1615
1616         /* Build the command word. */
1617         cmd = BCE_NVM_COMMAND_DOIT | cmd_flags;
1618
1619         /* Calculate the offset for buffered flash. */
1620         if (sc->bce_flash_info->flags & BCE_NV_TRANSLATE) {
1621                 offset = ((offset / sc->bce_flash_info->page_size) <<
1622                           sc->bce_flash_info->page_bits) +
1623                          (offset % sc->bce_flash_info->page_size);
1624         }
1625
1626         /*
1627          * Clear the DONE bit separately, set the address to read,
1628          * and issue the read.
1629          */
1630         REG_WR(sc, BCE_NVM_COMMAND, BCE_NVM_COMMAND_DONE);
1631         REG_WR(sc, BCE_NVM_ADDR, offset & BCE_NVM_ADDR_NVM_ADDR_VALUE);
1632         REG_WR(sc, BCE_NVM_COMMAND, cmd);
1633
1634         /* Wait for completion. */
1635         for (i = 0; i < NVRAM_TIMEOUT_COUNT; i++) {
1636                 uint32_t val;
1637
1638                 DELAY(5);
1639
1640                 val = REG_RD(sc, BCE_NVM_COMMAND);
1641                 if (val & BCE_NVM_COMMAND_DONE) {
1642                         val = REG_RD(sc, BCE_NVM_READ);
1643
1644                         val = be32toh(val);
1645                         memcpy(ret_val, &val, 4);
1646                         break;
1647                 }
1648         }
1649
1650         /* Check for errors. */
1651         if (i >= NVRAM_TIMEOUT_COUNT) {
1652                 if_printf(&sc->arpcom.ac_if,
1653                           "Timeout error reading NVRAM at offset 0x%08X!\n",
1654                           offset);
1655                 rc = EBUSY;
1656         }
1657         return rc;
1658 }
1659
1660
1661 /****************************************************************************/
1662 /* Initialize NVRAM access.                                                 */
1663 /*                                                                          */
1664 /* Identify the NVRAM device in use and prepare the NVRAM interface to      */
1665 /* access that device.                                                      */
1666 /*                                                                          */
1667 /* Returns:                                                                 */
1668 /*   0 on success, positive value on failure.                               */
1669 /****************************************************************************/
1670 static int
1671 bce_init_nvram(struct bce_softc *sc)
1672 {
1673         uint32_t val;
1674         int j, entry_count, rc = 0;
1675         const struct flash_spec *flash;
1676
1677         DBPRINT(sc, BCE_VERBOSE_RESET, "Entering %s()\n", __func__);
1678
1679         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
1680             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
1681                 sc->bce_flash_info = &flash_5709;
1682                 goto bce_init_nvram_get_flash_size;
1683         }
1684
1685         /* Determine the selected interface. */
1686         val = REG_RD(sc, BCE_NVM_CFG1);
1687
1688         entry_count = sizeof(flash_table) / sizeof(struct flash_spec);
1689
1690         /*
1691          * Flash reconfiguration is required to support additional
1692          * NVRAM devices not directly supported in hardware.
1693          * Check if the flash interface was reconfigured
1694          * by the bootcode.
1695          */
1696
1697         if (val & 0x40000000) {
1698                 /* Flash interface reconfigured by bootcode. */
1699
1700                 DBPRINT(sc, BCE_INFO_LOAD,
1701                         "%s(): Flash WAS reconfigured.\n", __func__);
1702
1703                 for (j = 0, flash = flash_table; j < entry_count;
1704                      j++, flash++) {
1705                         if ((val & FLASH_BACKUP_STRAP_MASK) ==
1706                             (flash->config1 & FLASH_BACKUP_STRAP_MASK)) {
1707                                 sc->bce_flash_info = flash;
1708                                 break;
1709                         }
1710                 }
1711         } else {
1712                 /* Flash interface not yet reconfigured. */
1713                 uint32_t mask;
1714
1715                 DBPRINT(sc, BCE_INFO_LOAD,
1716                         "%s(): Flash was NOT reconfigured.\n", __func__);
1717
1718                 if (val & (1 << 23))
1719                         mask = FLASH_BACKUP_STRAP_MASK;
1720                 else
1721                         mask = FLASH_STRAP_MASK;
1722
1723                 /* Look for the matching NVRAM device configuration data. */
1724                 for (j = 0, flash = flash_table; j < entry_count;
1725                      j++, flash++) {
1726                         /* Check if the device matches any of the known devices. */
1727                         if ((val & mask) == (flash->strapping & mask)) {
1728                                 /* Found a device match. */
1729                                 sc->bce_flash_info = flash;
1730
1731                                 /* Request access to the flash interface. */
1732                                 rc = bce_acquire_nvram_lock(sc);
1733                                 if (rc != 0)
1734                                         return rc;
1735
1736                                 /* Reconfigure the flash interface. */
1737                                 bce_enable_nvram_access(sc);
1738                                 REG_WR(sc, BCE_NVM_CFG1, flash->config1);
1739                                 REG_WR(sc, BCE_NVM_CFG2, flash->config2);
1740                                 REG_WR(sc, BCE_NVM_CFG3, flash->config3);
1741                                 REG_WR(sc, BCE_NVM_WRITE1, flash->write1);
1742                                 bce_disable_nvram_access(sc);
1743                                 bce_release_nvram_lock(sc);
1744                                 break;
1745                         }
1746                 }
1747         }
1748
1749         /* Check if a matching device was found. */
1750         if (j == entry_count) {
1751                 sc->bce_flash_info = NULL;
1752                 if_printf(&sc->arpcom.ac_if, "Unknown Flash NVRAM found!\n");
1753                 return ENODEV;
1754         }
1755
1756 bce_init_nvram_get_flash_size:
1757         /* Write the flash config data to the shared memory interface. */
1758         val = bce_shmem_rd(sc, BCE_SHARED_HW_CFG_CONFIG2) &
1759             BCE_SHARED_HW_CFG2_NVM_SIZE_MASK;
1760         if (val)
1761                 sc->bce_flash_size = val;
1762         else
1763                 sc->bce_flash_size = sc->bce_flash_info->total_size;
1764
1765         DBPRINT(sc, BCE_INFO_LOAD, "%s() flash->total_size = 0x%08X\n",
1766                 __func__, sc->bce_flash_info->total_size);
1767
1768         DBPRINT(sc, BCE_VERBOSE_RESET, "Exiting %s()\n", __func__);
1769
1770         return rc;
1771 }
1772
1773
1774 /****************************************************************************/
1775 /* Read an arbitrary range of data from NVRAM.                              */
1776 /*                                                                          */
1777 /* Prepares the NVRAM interface for access and reads the requested data     */
1778 /* into the supplied buffer.                                                */
1779 /*                                                                          */
1780 /* Returns:                                                                 */
1781 /*   0 on success and the data read, positive value on failure.             */
1782 /****************************************************************************/
1783 static int
1784 bce_nvram_read(struct bce_softc *sc, uint32_t offset, uint8_t *ret_buf,
1785                int buf_size)
1786 {
1787         uint32_t cmd_flags, offset32, len32, extra;
1788         int rc = 0;
1789
1790         if (buf_size == 0)
1791                 return 0;
1792
1793         /* Request access to the flash interface. */
1794         rc = bce_acquire_nvram_lock(sc);
1795         if (rc != 0)
1796                 return rc;
1797
1798         /* Enable access to flash interface */
1799         bce_enable_nvram_access(sc);
1800
1801         len32 = buf_size;
1802         offset32 = offset;
1803         extra = 0;
1804
1805         cmd_flags = 0;
1806
1807         /* XXX should we release nvram lock if read_dword() fails? */
1808         if (offset32 & 3) {
1809                 uint8_t buf[4];
1810                 uint32_t pre_len;
1811
1812                 offset32 &= ~3;
1813                 pre_len = 4 - (offset & 3);
1814
1815                 if (pre_len >= len32) {
1816                         pre_len = len32;
1817                         cmd_flags = BCE_NVM_COMMAND_FIRST | BCE_NVM_COMMAND_LAST;
1818                 } else {
1819                         cmd_flags = BCE_NVM_COMMAND_FIRST;
1820                 }
1821
1822                 rc = bce_nvram_read_dword(sc, offset32, buf, cmd_flags);
1823                 if (rc)
1824                         return rc;
1825
1826                 memcpy(ret_buf, buf + (offset & 3), pre_len);
1827
1828                 offset32 += 4;
1829                 ret_buf += pre_len;
1830                 len32 -= pre_len;
1831         }
1832
1833         if (len32 & 3) {
1834                 extra = 4 - (len32 & 3);
1835                 len32 = (len32 + 4) & ~3;
1836         }
1837
1838         if (len32 == 4) {
1839                 uint8_t buf[4];
1840
1841                 if (cmd_flags)
1842                         cmd_flags = BCE_NVM_COMMAND_LAST;
1843                 else
1844                         cmd_flags = BCE_NVM_COMMAND_FIRST |
1845                                     BCE_NVM_COMMAND_LAST;
1846
1847                 rc = bce_nvram_read_dword(sc, offset32, buf, cmd_flags);
1848
1849                 memcpy(ret_buf, buf, 4 - extra);
1850         } else if (len32 > 0) {
1851                 uint8_t buf[4];
1852
1853                 /* Read the first word. */
1854                 if (cmd_flags)
1855                         cmd_flags = 0;
1856                 else
1857                         cmd_flags = BCE_NVM_COMMAND_FIRST;
1858
1859                 rc = bce_nvram_read_dword(sc, offset32, ret_buf, cmd_flags);
1860
1861                 /* Advance to the next dword. */
1862                 offset32 += 4;
1863                 ret_buf += 4;
1864                 len32 -= 4;
1865
1866                 while (len32 > 4 && rc == 0) {
1867                         rc = bce_nvram_read_dword(sc, offset32, ret_buf, 0);
1868
1869                         /* Advance to the next dword. */
1870                         offset32 += 4;
1871                         ret_buf += 4;
1872                         len32 -= 4;
1873                 }
1874
1875                 if (rc)
1876                         goto bce_nvram_read_locked_exit;
1877
1878                 cmd_flags = BCE_NVM_COMMAND_LAST;
1879                 rc = bce_nvram_read_dword(sc, offset32, buf, cmd_flags);
1880
1881                 memcpy(ret_buf, buf, 4 - extra);
1882         }
1883
1884 bce_nvram_read_locked_exit:
1885         /* Disable access to flash interface and release the lock. */
1886         bce_disable_nvram_access(sc);
1887         bce_release_nvram_lock(sc);
1888
1889         return rc;
1890 }
1891
1892
1893 /****************************************************************************/
1894 /* Verifies that NVRAM is accessible and contains valid data.               */
1895 /*                                                                          */
1896 /* Reads the configuration data from NVRAM and verifies that the CRC is     */
1897 /* correct.                                                                 */
1898 /*                                                                          */
1899 /* Returns:                                                                 */
1900 /*   0 on success, positive value on failure.                               */
1901 /****************************************************************************/
1902 static int
1903 bce_nvram_test(struct bce_softc *sc)
1904 {
1905         uint32_t buf[BCE_NVRAM_SIZE / 4];
1906         uint32_t magic, csum;
1907         uint8_t *data = (uint8_t *)buf;
1908         int rc = 0;
1909
1910         /*
1911          * Check that the device NVRAM is valid by reading
1912          * the magic value at offset 0.
1913          */
1914         rc = bce_nvram_read(sc, 0, data, 4);
1915         if (rc != 0)
1916                 return rc;
1917
1918         magic = be32toh(buf[0]);
1919         if (magic != BCE_NVRAM_MAGIC) {
1920                 if_printf(&sc->arpcom.ac_if,
1921                           "Invalid NVRAM magic value! Expected: 0x%08X, "
1922                           "Found: 0x%08X\n", BCE_NVRAM_MAGIC, magic);
1923                 return ENODEV;
1924         }
1925
1926         /*
1927          * Verify that the device NVRAM includes valid
1928          * configuration data.
1929          */
1930         rc = bce_nvram_read(sc, 0x100, data, BCE_NVRAM_SIZE);
1931         if (rc != 0)
1932                 return rc;
1933
1934         csum = ether_crc32_le(data, 0x100);
1935         if (csum != BCE_CRC32_RESIDUAL) {
1936                 if_printf(&sc->arpcom.ac_if,
1937                           "Invalid Manufacturing Information NVRAM CRC! "
1938                           "Expected: 0x%08X, Found: 0x%08X\n",
1939                           BCE_CRC32_RESIDUAL, csum);
1940                 return ENODEV;
1941         }
1942
1943         csum = ether_crc32_le(data + 0x100, 0x100);
1944         if (csum != BCE_CRC32_RESIDUAL) {
1945                 if_printf(&sc->arpcom.ac_if,
1946                           "Invalid Feature Configuration Information "
1947                           "NVRAM CRC! Expected: 0x%08X, Found: 08%08X\n",
1948                           BCE_CRC32_RESIDUAL, csum);
1949                 rc = ENODEV;
1950         }
1951         return rc;
1952 }
1953
1954
1955 /****************************************************************************/
1956 /* Identifies the current media type of the controller and sets the PHY     */
1957 /* address.                                                                 */
1958 /*                                                                          */
1959 /* Returns:                                                                 */
1960 /*   Nothing.                                                               */
1961 /****************************************************************************/
1962 static void
1963 bce_get_media(struct bce_softc *sc)
1964 {
1965         uint32_t val;
1966
1967         sc->bce_phy_addr = 1;
1968
1969         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
1970             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
1971                 uint32_t val = REG_RD(sc, BCE_MISC_DUAL_MEDIA_CTRL);
1972                 uint32_t bond_id = val & BCE_MISC_DUAL_MEDIA_CTRL_BOND_ID;
1973                 uint32_t strap;
1974
1975                 /*
1976                  * The BCM5709S is software configurable
1977                  * for Copper or SerDes operation.
1978                  */
1979                 if (bond_id == BCE_MISC_DUAL_MEDIA_CTRL_BOND_ID_C) {
1980                         return;
1981                 } else if (bond_id == BCE_MISC_DUAL_MEDIA_CTRL_BOND_ID_S) {
1982                         sc->bce_phy_flags |= BCE_PHY_SERDES_FLAG;
1983                         return;
1984                 }
1985
1986                 if (val & BCE_MISC_DUAL_MEDIA_CTRL_STRAP_OVERRIDE) {
1987                         strap = (val & BCE_MISC_DUAL_MEDIA_CTRL_PHY_CTRL) >> 21;
1988                 } else {
1989                         strap =
1990                         (val & BCE_MISC_DUAL_MEDIA_CTRL_PHY_CTRL_STRAP) >> 8;
1991                 }
1992
1993                 if (pci_get_function(sc->bce_dev) == 0) {
1994                         switch (strap) {
1995                         case 0x4:
1996                         case 0x5:
1997                         case 0x6:
1998                                 sc->bce_phy_flags |= BCE_PHY_SERDES_FLAG;
1999                                 break;
2000                         }
2001                 } else {
2002                         switch (strap) {
2003                         case 0x1:
2004                         case 0x2:
2005                         case 0x4:
2006                                 sc->bce_phy_flags |= BCE_PHY_SERDES_FLAG;
2007                                 break;
2008                         }
2009                 }
2010         } else if (BCE_CHIP_BOND_ID(sc) & BCE_CHIP_BOND_ID_SERDES_BIT) {
2011                 sc->bce_phy_flags |= BCE_PHY_SERDES_FLAG;
2012         }
2013
2014         if (sc->bce_phy_flags & BCE_PHY_SERDES_FLAG) {
2015                 sc->bce_flags |= BCE_NO_WOL_FLAG;
2016                 if (BCE_CHIP_NUM(sc) != BCE_CHIP_NUM_5706) {
2017                         sc->bce_phy_addr = 2;
2018                         val = bce_shmem_rd(sc, BCE_SHARED_HW_CFG_CONFIG);
2019                         if (val & BCE_SHARED_HW_CFG_PHY_2_5G)
2020                                 sc->bce_phy_flags |= BCE_PHY_2_5G_CAPABLE_FLAG;
2021                 }
2022         } else if ((BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5706) ||
2023             (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5708)) {
2024                 sc->bce_phy_flags |= BCE_PHY_CRC_FIX_FLAG;
2025         }
2026 }
2027
2028
2029 /****************************************************************************/
2030 /* Free any DMA memory owned by the driver.                                 */
2031 /*                                                                          */
2032 /* Scans through each data structre that requires DMA memory and frees      */
2033 /* the memory if allocated.                                                 */
2034 /*                                                                          */
2035 /* Returns:                                                                 */
2036 /*   Nothing.                                                               */
2037 /****************************************************************************/
2038 static void
2039 bce_dma_free(struct bce_softc *sc)
2040 {
2041         int i;
2042
2043         /* Destroy the status block. */
2044         if (sc->status_tag != NULL) {
2045                 if (sc->status_block != NULL) {
2046                         bus_dmamap_unload(sc->status_tag, sc->status_map);
2047                         bus_dmamem_free(sc->status_tag, sc->status_block,
2048                                         sc->status_map);
2049                 }
2050                 bus_dma_tag_destroy(sc->status_tag);
2051         }
2052
2053         /* Destroy the statistics block. */
2054         if (sc->stats_tag != NULL) {
2055                 if (sc->stats_block != NULL) {
2056                         bus_dmamap_unload(sc->stats_tag, sc->stats_map);
2057                         bus_dmamem_free(sc->stats_tag, sc->stats_block,
2058                                         sc->stats_map);
2059                 }
2060                 bus_dma_tag_destroy(sc->stats_tag);
2061         }
2062
2063         /* Destroy the CTX DMA stuffs. */
2064         if (sc->ctx_tag != NULL) {
2065                 for (i = 0; i < sc->ctx_pages; i++) {
2066                         if (sc->ctx_block[i] != NULL) {
2067                                 bus_dmamap_unload(sc->ctx_tag, sc->ctx_map[i]);
2068                                 bus_dmamem_free(sc->ctx_tag, sc->ctx_block[i],
2069                                                 sc->ctx_map[i]);
2070                         }
2071                 }
2072                 bus_dma_tag_destroy(sc->ctx_tag);
2073         }
2074
2075         /* Destroy the TX buffer descriptor DMA stuffs. */
2076         if (sc->tx_bd_chain_tag != NULL) {
2077                 for (i = 0; i < sc->tx_pages; i++) {
2078                         if (sc->tx_bd_chain[i] != NULL) {
2079                                 bus_dmamap_unload(sc->tx_bd_chain_tag,
2080                                                   sc->tx_bd_chain_map[i]);
2081                                 bus_dmamem_free(sc->tx_bd_chain_tag,
2082                                                 sc->tx_bd_chain[i],
2083                                                 sc->tx_bd_chain_map[i]);
2084                         }
2085                 }
2086                 bus_dma_tag_destroy(sc->tx_bd_chain_tag);
2087         }
2088
2089         /* Destroy the RX buffer descriptor DMA stuffs. */
2090         if (sc->rx_bd_chain_tag != NULL) {
2091                 for (i = 0; i < sc->rx_pages; i++) {
2092                         if (sc->rx_bd_chain[i] != NULL) {
2093                                 bus_dmamap_unload(sc->rx_bd_chain_tag,
2094                                                   sc->rx_bd_chain_map[i]);
2095                                 bus_dmamem_free(sc->rx_bd_chain_tag,
2096                                                 sc->rx_bd_chain[i],
2097                                                 sc->rx_bd_chain_map[i]);
2098                         }
2099                 }
2100                 bus_dma_tag_destroy(sc->rx_bd_chain_tag);
2101         }
2102
2103         /* Destroy the TX mbuf DMA stuffs. */
2104         if (sc->tx_mbuf_tag != NULL) {
2105                 for (i = 0; i < TOTAL_TX_BD(sc); i++) {
2106                         /* Must have been unloaded in bce_stop() */
2107                         KKASSERT(sc->tx_mbuf_ptr[i] == NULL);
2108                         bus_dmamap_destroy(sc->tx_mbuf_tag,
2109                                            sc->tx_mbuf_map[i]);
2110                 }
2111                 bus_dma_tag_destroy(sc->tx_mbuf_tag);
2112         }
2113
2114         /* Destroy the RX mbuf DMA stuffs. */
2115         if (sc->rx_mbuf_tag != NULL) {
2116                 for (i = 0; i < TOTAL_RX_BD(sc); i++) {
2117                         /* Must have been unloaded in bce_stop() */
2118                         KKASSERT(sc->rx_mbuf_ptr[i] == NULL);
2119                         bus_dmamap_destroy(sc->rx_mbuf_tag,
2120                                            sc->rx_mbuf_map[i]);
2121                 }
2122                 bus_dmamap_destroy(sc->rx_mbuf_tag, sc->rx_mbuf_tmpmap);
2123                 bus_dma_tag_destroy(sc->rx_mbuf_tag);
2124         }
2125
2126         /* Destroy the parent tag */
2127         if (sc->parent_tag != NULL)
2128                 bus_dma_tag_destroy(sc->parent_tag);
2129
2130         if (sc->tx_bd_chain_map != NULL)
2131                 kfree(sc->tx_bd_chain_map, M_DEVBUF);
2132         if (sc->tx_bd_chain != NULL)
2133                 kfree(sc->tx_bd_chain, M_DEVBUF);
2134         if (sc->tx_bd_chain_paddr != NULL)
2135                 kfree(sc->tx_bd_chain_paddr, M_DEVBUF);
2136
2137         if (sc->rx_bd_chain_map != NULL)
2138                 kfree(sc->rx_bd_chain_map, M_DEVBUF);
2139         if (sc->rx_bd_chain != NULL)
2140                 kfree(sc->rx_bd_chain, M_DEVBUF);
2141         if (sc->rx_bd_chain_paddr != NULL)
2142                 kfree(sc->rx_bd_chain_paddr, M_DEVBUF);
2143
2144         if (sc->tx_mbuf_map != NULL)
2145                 kfree(sc->tx_mbuf_map, M_DEVBUF);
2146         if (sc->tx_mbuf_ptr != NULL)
2147                 kfree(sc->tx_mbuf_ptr, M_DEVBUF);
2148
2149         if (sc->rx_mbuf_map != NULL)
2150                 kfree(sc->rx_mbuf_map, M_DEVBUF);
2151         if (sc->rx_mbuf_ptr != NULL)
2152                 kfree(sc->rx_mbuf_ptr, M_DEVBUF);
2153         if (sc->rx_mbuf_paddr != NULL)
2154                 kfree(sc->rx_mbuf_paddr, M_DEVBUF);
2155 }
2156
2157
2158 /****************************************************************************/
2159 /* Get DMA memory from the OS.                                              */
2160 /*                                                                          */
2161 /* Validates that the OS has provided DMA buffers in response to a          */
2162 /* bus_dmamap_load() call and saves the physical address of those buffers.  */
2163 /* When the callback is used the OS will return 0 for the mapping function  */
2164 /* (bus_dmamap_load()) so we use the value of map_arg->maxsegs to pass any  */
2165 /* failures back to the caller.                                             */
2166 /*                                                                          */
2167 /* Returns:                                                                 */
2168 /*   Nothing.                                                               */
2169 /****************************************************************************/
2170 static void
2171 bce_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error)
2172 {
2173         bus_addr_t *busaddr = arg;
2174
2175         /*
2176          * Simulate a mapping failure.
2177          * XXX not correct.
2178          */
2179         DBRUNIF(DB_RANDOMTRUE(bce_debug_dma_map_addr_failure),
2180                 kprintf("bce: %s(%d): Simulating DMA mapping error.\n",
2181                         __FILE__, __LINE__);
2182                 error = ENOMEM);
2183
2184         /* Check for an error and signal the caller that an error occurred. */
2185         if (error)
2186                 return;
2187
2188         KASSERT(nseg == 1, ("only one segment is allowed"));
2189         *busaddr = segs->ds_addr;
2190 }
2191
2192
2193 /****************************************************************************/
2194 /* Allocate any DMA memory needed by the driver.                            */
2195 /*                                                                          */
2196 /* Allocates DMA memory needed for the various global structures needed by  */
2197 /* hardware.                                                                */
2198 /*                                                                          */
2199 /* Memory alignment requirements:                                           */
2200 /* -----------------+----------+----------+----------+----------+           */
2201 /*  Data Structure  |   5706   |   5708   |   5709   |   5716   |           */
2202 /* -----------------+----------+----------+----------+----------+           */
2203 /* Status Block     | 8 bytes  | 8 bytes  | 16 bytes | 16 bytes |           */
2204 /* Statistics Block | 8 bytes  | 8 bytes  | 16 bytes | 16 bytes |           */
2205 /* RX Buffers       | 16 bytes | 16 bytes | 16 bytes | 16 bytes |           */
2206 /* PG Buffers       |   none   |   none   |   none   |   none   |           */
2207 /* TX Buffers       |   none   |   none   |   none   |   none   |           */
2208 /* Chain Pages(1)   |   4KiB   |   4KiB   |   4KiB   |   4KiB   |           */
2209 /* Context Pages(1) |   N/A    |   N/A    |   4KiB   |   4KiB   |           */
2210 /* -----------------+----------+----------+----------+----------+           */
2211 /*                                                                          */
2212 /* (1) Must align with CPU page size (BCM_PAGE_SZIE).                       */
2213 /*                                                                          */
2214 /* Returns:                                                                 */
2215 /*   0 for success, positive value for failure.                             */
2216 /****************************************************************************/
2217 static int
2218 bce_dma_alloc(struct bce_softc *sc)
2219 {
2220         struct ifnet *ifp = &sc->arpcom.ac_if;
2221         int i, j, rc = 0, pages;
2222         bus_addr_t busaddr, max_busaddr;
2223         bus_size_t status_align, stats_align;
2224
2225         pages = device_getenv_int(sc->bce_dev, "rx_pages", bce_rx_pages);
2226         if (pages <= 0 || pages > RX_PAGES_MAX || !powerof2(pages)) {
2227                 device_printf(sc->bce_dev, "invalid # of RX pages\n");
2228                 pages = RX_PAGES_DEFAULT;
2229         }
2230         sc->rx_pages = pages;
2231
2232         pages = device_getenv_int(sc->bce_dev, "tx_pages", bce_tx_pages);
2233         if (pages <= 0 || pages > TX_PAGES_MAX || !powerof2(pages)) {
2234                 device_printf(sc->bce_dev, "invalid # of TX pages\n");
2235                 pages = TX_PAGES_DEFAULT;
2236         }
2237         sc->tx_pages = pages;
2238
2239         sc->tx_bd_chain_map = kmalloc(sizeof(bus_dmamap_t) * sc->tx_pages,
2240             M_DEVBUF, M_WAITOK | M_ZERO);
2241         sc->tx_bd_chain = kmalloc(sizeof(struct tx_bd *) * sc->tx_pages,
2242             M_DEVBUF, M_WAITOK | M_ZERO);
2243         sc->tx_bd_chain_paddr = kmalloc(sizeof(bus_addr_t) * sc->tx_pages,
2244             M_DEVBUF, M_WAITOK | M_ZERO);
2245
2246         sc->rx_bd_chain_map = kmalloc(sizeof(bus_dmamap_t) * sc->rx_pages,
2247             M_DEVBUF, M_WAITOK | M_ZERO);
2248         sc->rx_bd_chain = kmalloc(sizeof(struct rx_bd *) * sc->rx_pages,
2249             M_DEVBUF, M_WAITOK | M_ZERO);
2250         sc->rx_bd_chain_paddr = kmalloc(sizeof(bus_addr_t) * sc->rx_pages,
2251             M_DEVBUF, M_WAITOK | M_ZERO);
2252
2253         sc->tx_mbuf_map = kmalloc(sizeof(bus_dmamap_t) * TOTAL_TX_BD(sc),
2254             M_DEVBUF, M_WAITOK | M_ZERO);
2255         sc->tx_mbuf_ptr = kmalloc(sizeof(struct mbuf *) * TOTAL_TX_BD(sc),
2256             M_DEVBUF, M_WAITOK | M_ZERO);
2257
2258         sc->rx_mbuf_map = kmalloc(sizeof(bus_dmamap_t) * TOTAL_RX_BD(sc),
2259             M_DEVBUF, M_WAITOK | M_ZERO);
2260         sc->rx_mbuf_ptr = kmalloc(sizeof(struct mbuf *) * TOTAL_RX_BD(sc),
2261             M_DEVBUF, M_WAITOK | M_ZERO);
2262         sc->rx_mbuf_paddr = kmalloc(sizeof(bus_addr_t) * TOTAL_RX_BD(sc),
2263             M_DEVBUF, M_WAITOK | M_ZERO);
2264
2265         /*
2266          * The embedded PCIe to PCI-X bridge (EPB)
2267          * in the 5708 cannot address memory above
2268          * 40 bits (E7_5708CB1_23043 & E6_5708SB1_23043).
2269          */
2270         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5708)
2271                 max_busaddr = BCE_BUS_SPACE_MAXADDR;
2272         else
2273                 max_busaddr = BUS_SPACE_MAXADDR;
2274
2275         /*
2276          * BCM5709 and BCM5716 uses host memory as cache for context memory.
2277          */
2278         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
2279             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
2280                 sc->ctx_pages = BCE_CTX_BLK_SZ / BCM_PAGE_SIZE;
2281                 if (sc->ctx_pages == 0)
2282                         sc->ctx_pages = 1;
2283                 if (sc->ctx_pages > BCE_CTX_PAGES) {
2284                         device_printf(sc->bce_dev, "excessive ctx pages %d\n",
2285                             sc->ctx_pages);
2286                         return ENOMEM;
2287                 }
2288                 status_align = 16;
2289                 stats_align = 16;
2290         } else {
2291                 status_align = 8;
2292                 stats_align = 8;
2293         }
2294
2295         /*
2296          * Allocate the parent bus DMA tag appropriate for PCI.
2297          */
2298         rc = bus_dma_tag_create(NULL, 1, BCE_DMA_BOUNDARY,
2299                                 max_busaddr, BUS_SPACE_MAXADDR,
2300                                 NULL, NULL,
2301                                 BUS_SPACE_MAXSIZE_32BIT, 0,
2302                                 BUS_SPACE_MAXSIZE_32BIT,
2303                                 0, &sc->parent_tag);
2304         if (rc != 0) {
2305                 if_printf(ifp, "Could not allocate parent DMA tag!\n");
2306                 return rc;
2307         }
2308
2309         /*
2310          * Allocate status block.
2311          */
2312         sc->status_block = bus_dmamem_coherent_any(sc->parent_tag,
2313                                 status_align, BCE_STATUS_BLK_SZ,
2314                                 BUS_DMA_WAITOK | BUS_DMA_ZERO,
2315                                 &sc->status_tag, &sc->status_map,
2316                                 &sc->status_block_paddr);
2317         if (sc->status_block == NULL) {
2318                 if_printf(ifp, "Could not allocate status block!\n");
2319                 return ENOMEM;
2320         }
2321
2322         /*
2323          * Allocate statistics block.
2324          */
2325         sc->stats_block = bus_dmamem_coherent_any(sc->parent_tag,
2326                                 stats_align, BCE_STATS_BLK_SZ,
2327                                 BUS_DMA_WAITOK | BUS_DMA_ZERO,
2328                                 &sc->stats_tag, &sc->stats_map,
2329                                 &sc->stats_block_paddr);
2330         if (sc->stats_block == NULL) {
2331                 if_printf(ifp, "Could not allocate statistics block!\n");
2332                 return ENOMEM;
2333         }
2334
2335         /*
2336          * Allocate context block, if needed
2337          */
2338         if (sc->ctx_pages != 0) {
2339                 rc = bus_dma_tag_create(sc->parent_tag, BCM_PAGE_SIZE, 0,
2340                                         BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
2341                                         NULL, NULL,
2342                                         BCM_PAGE_SIZE, 1, BCM_PAGE_SIZE,
2343                                         0, &sc->ctx_tag);
2344                 if (rc != 0) {
2345                         if_printf(ifp, "Could not allocate "
2346                                   "context block DMA tag!\n");
2347                         return rc;
2348                 }
2349
2350                 for (i = 0; i < sc->ctx_pages; i++) {
2351                         rc = bus_dmamem_alloc(sc->ctx_tag,
2352                                               (void **)&sc->ctx_block[i],
2353                                               BUS_DMA_WAITOK | BUS_DMA_ZERO |
2354                                               BUS_DMA_COHERENT,
2355                                               &sc->ctx_map[i]);
2356                         if (rc != 0) {
2357                                 if_printf(ifp, "Could not allocate %dth context "
2358                                           "DMA memory!\n", i);
2359                                 return rc;
2360                         }
2361
2362                         rc = bus_dmamap_load(sc->ctx_tag, sc->ctx_map[i],
2363                                              sc->ctx_block[i], BCM_PAGE_SIZE,
2364                                              bce_dma_map_addr, &busaddr,
2365                                              BUS_DMA_WAITOK);
2366                         if (rc != 0) {
2367                                 if (rc == EINPROGRESS) {
2368                                         panic("%s coherent memory loading "
2369                                               "is still in progress!", ifp->if_xname);
2370                                 }
2371                                 if_printf(ifp, "Could not map %dth context "
2372                                           "DMA memory!\n", i);
2373                                 bus_dmamem_free(sc->ctx_tag, sc->ctx_block[i],
2374                                                 sc->ctx_map[i]);
2375                                 sc->ctx_block[i] = NULL;
2376                                 return rc;
2377                         }
2378                         sc->ctx_paddr[i] = busaddr;
2379                 }
2380         }
2381
2382         /*
2383          * Create a DMA tag for the TX buffer descriptor chain,
2384          * allocate and clear the  memory, and fetch the
2385          * physical address of the block.
2386          */
2387         rc = bus_dma_tag_create(sc->parent_tag, BCM_PAGE_SIZE, 0,
2388                                 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
2389                                 NULL, NULL,
2390                                 BCE_TX_CHAIN_PAGE_SZ, 1, BCE_TX_CHAIN_PAGE_SZ,
2391                                 0, &sc->tx_bd_chain_tag);
2392         if (rc != 0) {
2393                 if_printf(ifp, "Could not allocate "
2394                           "TX descriptor chain DMA tag!\n");
2395                 return rc;
2396         }
2397
2398         for (i = 0; i < sc->tx_pages; i++) {
2399                 rc = bus_dmamem_alloc(sc->tx_bd_chain_tag,
2400                                       (void **)&sc->tx_bd_chain[i],
2401                                       BUS_DMA_WAITOK | BUS_DMA_ZERO |
2402                                       BUS_DMA_COHERENT,
2403                                       &sc->tx_bd_chain_map[i]);
2404                 if (rc != 0) {
2405                         if_printf(ifp, "Could not allocate %dth TX descriptor "
2406                                   "chain DMA memory!\n", i);
2407                         return rc;
2408                 }
2409
2410                 rc = bus_dmamap_load(sc->tx_bd_chain_tag,
2411                                      sc->tx_bd_chain_map[i],
2412                                      sc->tx_bd_chain[i], BCE_TX_CHAIN_PAGE_SZ,
2413                                      bce_dma_map_addr, &busaddr,
2414                                      BUS_DMA_WAITOK);
2415                 if (rc != 0) {
2416                         if (rc == EINPROGRESS) {
2417                                 panic("%s coherent memory loading "
2418                                       "is still in progress!", ifp->if_xname);
2419                         }
2420                         if_printf(ifp, "Could not map %dth TX descriptor "
2421                                   "chain DMA memory!\n", i);
2422                         bus_dmamem_free(sc->tx_bd_chain_tag,
2423                                         sc->tx_bd_chain[i],
2424                                         sc->tx_bd_chain_map[i]);
2425                         sc->tx_bd_chain[i] = NULL;
2426                         return rc;
2427                 }
2428
2429                 sc->tx_bd_chain_paddr[i] = busaddr;
2430                 /* DRC - Fix for 64 bit systems. */
2431                 DBPRINT(sc, BCE_INFO, "tx_bd_chain_paddr[%d] = 0x%08X\n",
2432                         i, (uint32_t)sc->tx_bd_chain_paddr[i]);
2433         }
2434
2435         /* Create a DMA tag for TX mbufs. */
2436         rc = bus_dma_tag_create(sc->parent_tag, 1, 0,
2437                                 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
2438                                 NULL, NULL,
2439                                 /* BCE_MAX_JUMBO_ETHER_MTU_VLAN */MCLBYTES,
2440                                 BCE_MAX_SEGMENTS, MCLBYTES,
2441                                 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK |
2442                                 BUS_DMA_ONEBPAGE,
2443                                 &sc->tx_mbuf_tag);
2444         if (rc != 0) {
2445                 if_printf(ifp, "Could not allocate TX mbuf DMA tag!\n");
2446                 return rc;
2447         }
2448
2449         /* Create DMA maps for the TX mbufs clusters. */
2450         for (i = 0; i < TOTAL_TX_BD(sc); i++) {
2451                 rc = bus_dmamap_create(sc->tx_mbuf_tag,
2452                                        BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE,
2453                                        &sc->tx_mbuf_map[i]);
2454                 if (rc != 0) {
2455                         for (j = 0; j < i; ++j) {
2456                                 bus_dmamap_destroy(sc->tx_mbuf_tag,
2457                                                    sc->tx_mbuf_map[i]);
2458                         }
2459                         bus_dma_tag_destroy(sc->tx_mbuf_tag);
2460                         sc->tx_mbuf_tag = NULL;
2461
2462                         if_printf(ifp, "Unable to create "
2463                                   "%dth TX mbuf DMA map!\n", i);
2464                         return rc;
2465                 }
2466         }
2467
2468         /*
2469          * Create a DMA tag for the RX buffer descriptor chain,
2470          * allocate and clear the  memory, and fetch the physical
2471          * address of the blocks.
2472          */
2473         rc = bus_dma_tag_create(sc->parent_tag, BCM_PAGE_SIZE, 0,
2474                                 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
2475                                 NULL, NULL,
2476                                 BCE_RX_CHAIN_PAGE_SZ, 1, BCE_RX_CHAIN_PAGE_SZ,
2477                                 0, &sc->rx_bd_chain_tag);
2478         if (rc != 0) {
2479                 if_printf(ifp, "Could not allocate "
2480                           "RX descriptor chain DMA tag!\n");
2481                 return rc;
2482         }
2483
2484         for (i = 0; i < sc->rx_pages; i++) {
2485                 rc = bus_dmamem_alloc(sc->rx_bd_chain_tag,
2486                                       (void **)&sc->rx_bd_chain[i],
2487                                       BUS_DMA_WAITOK | BUS_DMA_ZERO |
2488                                       BUS_DMA_COHERENT,
2489                                       &sc->rx_bd_chain_map[i]);
2490                 if (rc != 0) {
2491                         if_printf(ifp, "Could not allocate %dth RX descriptor "
2492                                   "chain DMA memory!\n", i);
2493                         return rc;
2494                 }
2495
2496                 rc = bus_dmamap_load(sc->rx_bd_chain_tag,
2497                                      sc->rx_bd_chain_map[i],
2498                                      sc->rx_bd_chain[i], BCE_RX_CHAIN_PAGE_SZ,
2499                                      bce_dma_map_addr, &busaddr,
2500                                      BUS_DMA_WAITOK);
2501                 if (rc != 0) {
2502                         if (rc == EINPROGRESS) {
2503                                 panic("%s coherent memory loading "
2504                                       "is still in progress!", ifp->if_xname);
2505                         }
2506                         if_printf(ifp, "Could not map %dth RX descriptor "
2507                                   "chain DMA memory!\n", i);
2508                         bus_dmamem_free(sc->rx_bd_chain_tag,
2509                                         sc->rx_bd_chain[i],
2510                                         sc->rx_bd_chain_map[i]);
2511                         sc->rx_bd_chain[i] = NULL;
2512                         return rc;
2513                 }
2514
2515                 sc->rx_bd_chain_paddr[i] = busaddr;
2516                 /* DRC - Fix for 64 bit systems. */
2517                 DBPRINT(sc, BCE_INFO, "rx_bd_chain_paddr[%d] = 0x%08X\n",
2518                         i, (uint32_t)sc->rx_bd_chain_paddr[i]);
2519         }
2520
2521         /* Create a DMA tag for RX mbufs. */
2522         rc = bus_dma_tag_create(sc->parent_tag, BCE_DMA_RX_ALIGN, 0,
2523                                 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
2524                                 NULL, NULL,
2525                                 MCLBYTES, 1, MCLBYTES,
2526                                 BUS_DMA_ALLOCNOW | BUS_DMA_ALIGNED |
2527                                 BUS_DMA_WAITOK,
2528                                 &sc->rx_mbuf_tag);
2529         if (rc != 0) {
2530                 if_printf(ifp, "Could not allocate RX mbuf DMA tag!\n");
2531                 return rc;
2532         }
2533
2534         /* Create tmp DMA map for RX mbuf clusters. */
2535         rc = bus_dmamap_create(sc->rx_mbuf_tag, BUS_DMA_WAITOK,
2536                                &sc->rx_mbuf_tmpmap);
2537         if (rc != 0) {
2538                 bus_dma_tag_destroy(sc->rx_mbuf_tag);
2539                 sc->rx_mbuf_tag = NULL;
2540
2541                 if_printf(ifp, "Could not create RX mbuf tmp DMA map!\n");
2542                 return rc;
2543         }
2544
2545         /* Create DMA maps for the RX mbuf clusters. */
2546         for (i = 0; i < TOTAL_RX_BD(sc); i++) {
2547                 rc = bus_dmamap_create(sc->rx_mbuf_tag, BUS_DMA_WAITOK,
2548                                        &sc->rx_mbuf_map[i]);
2549                 if (rc != 0) {
2550                         for (j = 0; j < i; ++j) {
2551                                 bus_dmamap_destroy(sc->rx_mbuf_tag,
2552                                                    sc->rx_mbuf_map[j]);
2553                         }
2554                         bus_dma_tag_destroy(sc->rx_mbuf_tag);
2555                         sc->rx_mbuf_tag = NULL;
2556
2557                         if_printf(ifp, "Unable to create "
2558                                   "%dth RX mbuf DMA map!\n", i);
2559                         return rc;
2560                 }
2561         }
2562         return 0;
2563 }
2564
2565
2566 /****************************************************************************/
2567 /* Firmware synchronization.                                                */
2568 /*                                                                          */
2569 /* Before performing certain events such as a chip reset, synchronize with  */
2570 /* the firmware first.                                                      */
2571 /*                                                                          */
2572 /* Returns:                                                                 */
2573 /*   0 for success, positive value for failure.                             */
2574 /****************************************************************************/
2575 static int
2576 bce_fw_sync(struct bce_softc *sc, uint32_t msg_data)
2577 {
2578         int i, rc = 0;
2579         uint32_t val;
2580
2581         /* Don't waste any time if we've timed out before. */
2582         if (sc->bce_fw_timed_out)
2583                 return EBUSY;
2584
2585         /* Increment the message sequence number. */
2586         sc->bce_fw_wr_seq++;
2587         msg_data |= sc->bce_fw_wr_seq;
2588
2589         DBPRINT(sc, BCE_VERBOSE, "bce_fw_sync(): msg_data = 0x%08X\n", msg_data);
2590
2591         /* Send the message to the bootcode driver mailbox. */
2592         bce_shmem_wr(sc, BCE_DRV_MB, msg_data);
2593
2594         /* Wait for the bootcode to acknowledge the message. */
2595         for (i = 0; i < FW_ACK_TIME_OUT_MS; i++) {
2596                 /* Check for a response in the bootcode firmware mailbox. */
2597                 val = bce_shmem_rd(sc, BCE_FW_MB);
2598                 if ((val & BCE_FW_MSG_ACK) == (msg_data & BCE_DRV_MSG_SEQ))
2599                         break;
2600                 DELAY(1000);
2601         }
2602
2603         /* If we've timed out, tell the bootcode that we've stopped waiting. */
2604         if ((val & BCE_FW_MSG_ACK) != (msg_data & BCE_DRV_MSG_SEQ) &&
2605             (msg_data & BCE_DRV_MSG_DATA) != BCE_DRV_MSG_DATA_WAIT0) {
2606                 if_printf(&sc->arpcom.ac_if,
2607                           "Firmware synchronization timeout! "
2608                           "msg_data = 0x%08X\n", msg_data);
2609
2610                 msg_data &= ~BCE_DRV_MSG_CODE;
2611                 msg_data |= BCE_DRV_MSG_CODE_FW_TIMEOUT;
2612
2613                 bce_shmem_wr(sc, BCE_DRV_MB, msg_data);
2614
2615                 sc->bce_fw_timed_out = 1;
2616                 rc = EBUSY;
2617         }
2618         return rc;
2619 }
2620
2621
2622 /****************************************************************************/
2623 /* Load Receive Virtual 2 Physical (RV2P) processor firmware.               */
2624 /*                                                                          */
2625 /* Returns:                                                                 */
2626 /*   Nothing.                                                               */
2627 /****************************************************************************/
2628 static void
2629 bce_load_rv2p_fw(struct bce_softc *sc, uint32_t *rv2p_code,
2630                  uint32_t rv2p_code_len, uint32_t rv2p_proc)
2631 {
2632         int i;
2633         uint32_t val;
2634
2635         for (i = 0; i < rv2p_code_len; i += 8) {
2636                 REG_WR(sc, BCE_RV2P_INSTR_HIGH, *rv2p_code);
2637                 rv2p_code++;
2638                 REG_WR(sc, BCE_RV2P_INSTR_LOW, *rv2p_code);
2639                 rv2p_code++;
2640
2641                 if (rv2p_proc == RV2P_PROC1) {
2642                         val = (i / 8) | BCE_RV2P_PROC1_ADDR_CMD_RDWR;
2643                         REG_WR(sc, BCE_RV2P_PROC1_ADDR_CMD, val);
2644                 } else {
2645                         val = (i / 8) | BCE_RV2P_PROC2_ADDR_CMD_RDWR;
2646                         REG_WR(sc, BCE_RV2P_PROC2_ADDR_CMD, val);
2647                 }
2648         }
2649
2650         /* Reset the processor, un-stall is done later. */
2651         if (rv2p_proc == RV2P_PROC1)
2652                 REG_WR(sc, BCE_RV2P_COMMAND, BCE_RV2P_COMMAND_PROC1_RESET);
2653         else
2654                 REG_WR(sc, BCE_RV2P_COMMAND, BCE_RV2P_COMMAND_PROC2_RESET);
2655 }
2656
2657
2658 /****************************************************************************/
2659 /* Load RISC processor firmware.                                            */
2660 /*                                                                          */
2661 /* Loads firmware from the file if_bcefw.h into the scratchpad memory       */
2662 /* associated with a particular processor.                                  */
2663 /*                                                                          */
2664 /* Returns:                                                                 */
2665 /*   Nothing.                                                               */
2666 /****************************************************************************/
2667 static void
2668 bce_load_cpu_fw(struct bce_softc *sc, struct cpu_reg *cpu_reg,
2669                 struct fw_info *fw)
2670 {
2671         uint32_t offset;
2672         int j;
2673
2674         bce_halt_cpu(sc, cpu_reg);
2675
2676         /* Load the Text area. */
2677         offset = cpu_reg->spad_base + (fw->text_addr - cpu_reg->mips_view_base);
2678         if (fw->text) {
2679                 for (j = 0; j < (fw->text_len / 4); j++, offset += 4)
2680                         REG_WR_IND(sc, offset, fw->text[j]);
2681         }
2682
2683         /* Load the Data area. */
2684         offset = cpu_reg->spad_base + (fw->data_addr - cpu_reg->mips_view_base);
2685         if (fw->data) {
2686                 for (j = 0; j < (fw->data_len / 4); j++, offset += 4)
2687                         REG_WR_IND(sc, offset, fw->data[j]);
2688         }
2689
2690         /* Load the SBSS area. */
2691         offset = cpu_reg->spad_base + (fw->sbss_addr - cpu_reg->mips_view_base);
2692         if (fw->sbss) {
2693                 for (j = 0; j < (fw->sbss_len / 4); j++, offset += 4)
2694                         REG_WR_IND(sc, offset, fw->sbss[j]);
2695         }
2696
2697         /* Load the BSS area. */
2698         offset = cpu_reg->spad_base + (fw->bss_addr - cpu_reg->mips_view_base);
2699         if (fw->bss) {
2700                 for (j = 0; j < (fw->bss_len/4); j++, offset += 4)
2701                         REG_WR_IND(sc, offset, fw->bss[j]);
2702         }
2703
2704         /* Load the Read-Only area. */
2705         offset = cpu_reg->spad_base +
2706                 (fw->rodata_addr - cpu_reg->mips_view_base);
2707         if (fw->rodata) {
2708                 for (j = 0; j < (fw->rodata_len / 4); j++, offset += 4)
2709                         REG_WR_IND(sc, offset, fw->rodata[j]);
2710         }
2711
2712         /* Clear the pre-fetch instruction and set the FW start address. */
2713         REG_WR_IND(sc, cpu_reg->inst, 0);
2714         REG_WR_IND(sc, cpu_reg->pc, fw->start_addr);
2715 }
2716
2717
2718 /****************************************************************************/
2719 /* Starts the RISC processor.                                               */
2720 /*                                                                          */
2721 /* Assumes the CPU starting address has already been set.                   */
2722 /*                                                                          */
2723 /* Returns:                                                                 */
2724 /*   Nothing.                                                               */
2725 /****************************************************************************/
2726 static void
2727 bce_start_cpu(struct bce_softc *sc, struct cpu_reg *cpu_reg)
2728 {
2729         uint32_t val;
2730
2731         /* Start the CPU. */
2732         val = REG_RD_IND(sc, cpu_reg->mode);
2733         val &= ~cpu_reg->mode_value_halt;
2734         REG_WR_IND(sc, cpu_reg->state, cpu_reg->state_value_clear);
2735         REG_WR_IND(sc, cpu_reg->mode, val);
2736 }
2737
2738
2739 /****************************************************************************/
2740 /* Halts the RISC processor.                                                */
2741 /*                                                                          */
2742 /* Returns:                                                                 */
2743 /*   Nothing.                                                               */
2744 /****************************************************************************/
2745 static void
2746 bce_halt_cpu(struct bce_softc *sc, struct cpu_reg *cpu_reg)
2747 {
2748         uint32_t val;
2749
2750         /* Halt the CPU. */
2751         val = REG_RD_IND(sc, cpu_reg->mode);
2752         val |= cpu_reg->mode_value_halt;
2753         REG_WR_IND(sc, cpu_reg->mode, val);
2754         REG_WR_IND(sc, cpu_reg->state, cpu_reg->state_value_clear);
2755 }
2756
2757
2758 /****************************************************************************/
2759 /* Start the RX CPU.                                                        */
2760 /*                                                                          */
2761 /* Returns:                                                                 */
2762 /*   Nothing.                                                               */
2763 /****************************************************************************/
2764 static void
2765 bce_start_rxp_cpu(struct bce_softc *sc)
2766 {
2767         struct cpu_reg cpu_reg;
2768
2769         cpu_reg.mode = BCE_RXP_CPU_MODE;
2770         cpu_reg.mode_value_halt = BCE_RXP_CPU_MODE_SOFT_HALT;
2771         cpu_reg.mode_value_sstep = BCE_RXP_CPU_MODE_STEP_ENA;
2772         cpu_reg.state = BCE_RXP_CPU_STATE;
2773         cpu_reg.state_value_clear = 0xffffff;
2774         cpu_reg.gpr0 = BCE_RXP_CPU_REG_FILE;
2775         cpu_reg.evmask = BCE_RXP_CPU_EVENT_MASK;
2776         cpu_reg.pc = BCE_RXP_CPU_PROGRAM_COUNTER;
2777         cpu_reg.inst = BCE_RXP_CPU_INSTRUCTION;
2778         cpu_reg.bp = BCE_RXP_CPU_HW_BREAKPOINT;
2779         cpu_reg.spad_base = BCE_RXP_SCRATCH;
2780         cpu_reg.mips_view_base = 0x8000000;
2781
2782         bce_start_cpu(sc, &cpu_reg);
2783 }
2784
2785
2786 /****************************************************************************/
2787 /* Initialize the RX CPU.                                                   */
2788 /*                                                                          */
2789 /* Returns:                                                                 */
2790 /*   Nothing.                                                               */
2791 /****************************************************************************/
2792 static void
2793 bce_init_rxp_cpu(struct bce_softc *sc)
2794 {
2795         struct cpu_reg cpu_reg;
2796         struct fw_info fw;
2797
2798         cpu_reg.mode = BCE_RXP_CPU_MODE;
2799         cpu_reg.mode_value_halt = BCE_RXP_CPU_MODE_SOFT_HALT;
2800         cpu_reg.mode_value_sstep = BCE_RXP_CPU_MODE_STEP_ENA;
2801         cpu_reg.state = BCE_RXP_CPU_STATE;
2802         cpu_reg.state_value_clear = 0xffffff;
2803         cpu_reg.gpr0 = BCE_RXP_CPU_REG_FILE;
2804         cpu_reg.evmask = BCE_RXP_CPU_EVENT_MASK;
2805         cpu_reg.pc = BCE_RXP_CPU_PROGRAM_COUNTER;
2806         cpu_reg.inst = BCE_RXP_CPU_INSTRUCTION;
2807         cpu_reg.bp = BCE_RXP_CPU_HW_BREAKPOINT;
2808         cpu_reg.spad_base = BCE_RXP_SCRATCH;
2809         cpu_reg.mips_view_base = 0x8000000;
2810
2811         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
2812             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
2813                 fw.ver_major = bce_RXP_b09FwReleaseMajor;
2814                 fw.ver_minor = bce_RXP_b09FwReleaseMinor;
2815                 fw.ver_fix = bce_RXP_b09FwReleaseFix;
2816                 fw.start_addr = bce_RXP_b09FwStartAddr;
2817
2818                 fw.text_addr = bce_RXP_b09FwTextAddr;
2819                 fw.text_len = bce_RXP_b09FwTextLen;
2820                 fw.text_index = 0;
2821                 fw.text = bce_RXP_b09FwText;
2822
2823                 fw.data_addr = bce_RXP_b09FwDataAddr;
2824                 fw.data_len = bce_RXP_b09FwDataLen;
2825                 fw.data_index = 0;
2826                 fw.data = bce_RXP_b09FwData;
2827
2828                 fw.sbss_addr = bce_RXP_b09FwSbssAddr;
2829                 fw.sbss_len = bce_RXP_b09FwSbssLen;
2830                 fw.sbss_index = 0;
2831                 fw.sbss = bce_RXP_b09FwSbss;
2832
2833                 fw.bss_addr = bce_RXP_b09FwBssAddr;
2834                 fw.bss_len = bce_RXP_b09FwBssLen;
2835                 fw.bss_index = 0;
2836                 fw.bss = bce_RXP_b09FwBss;
2837
2838                 fw.rodata_addr = bce_RXP_b09FwRodataAddr;
2839                 fw.rodata_len = bce_RXP_b09FwRodataLen;
2840                 fw.rodata_index = 0;
2841                 fw.rodata = bce_RXP_b09FwRodata;
2842         } else {
2843                 fw.ver_major = bce_RXP_b06FwReleaseMajor;
2844                 fw.ver_minor = bce_RXP_b06FwReleaseMinor;
2845                 fw.ver_fix = bce_RXP_b06FwReleaseFix;
2846                 fw.start_addr = bce_RXP_b06FwStartAddr;
2847
2848                 fw.text_addr = bce_RXP_b06FwTextAddr;
2849                 fw.text_len = bce_RXP_b06FwTextLen;
2850                 fw.text_index = 0;
2851                 fw.text = bce_RXP_b06FwText;
2852
2853                 fw.data_addr = bce_RXP_b06FwDataAddr;
2854                 fw.data_len = bce_RXP_b06FwDataLen;
2855                 fw.data_index = 0;
2856                 fw.data = bce_RXP_b06FwData;
2857
2858                 fw.sbss_addr = bce_RXP_b06FwSbssAddr;
2859                 fw.sbss_len = bce_RXP_b06FwSbssLen;
2860                 fw.sbss_index = 0;
2861                 fw.sbss = bce_RXP_b06FwSbss;
2862
2863                 fw.bss_addr = bce_RXP_b06FwBssAddr;
2864                 fw.bss_len = bce_RXP_b06FwBssLen;
2865                 fw.bss_index = 0;
2866                 fw.bss = bce_RXP_b06FwBss;
2867
2868                 fw.rodata_addr = bce_RXP_b06FwRodataAddr;
2869                 fw.rodata_len = bce_RXP_b06FwRodataLen;
2870                 fw.rodata_index = 0;
2871                 fw.rodata = bce_RXP_b06FwRodata;
2872         }
2873
2874         DBPRINT(sc, BCE_INFO_RESET, "Loading RX firmware.\n");
2875         bce_load_cpu_fw(sc, &cpu_reg, &fw);
2876         /* Delay RXP start until initialization is complete. */
2877 }
2878
2879
2880 /****************************************************************************/
2881 /* Initialize the TX CPU.                                                   */
2882 /*                                                                          */
2883 /* Returns:                                                                 */
2884 /*   Nothing.                                                               */
2885 /****************************************************************************/
2886 static void
2887 bce_init_txp_cpu(struct bce_softc *sc)
2888 {
2889         struct cpu_reg cpu_reg;
2890         struct fw_info fw;
2891
2892         cpu_reg.mode = BCE_TXP_CPU_MODE;
2893         cpu_reg.mode_value_halt = BCE_TXP_CPU_MODE_SOFT_HALT;
2894         cpu_reg.mode_value_sstep = BCE_TXP_CPU_MODE_STEP_ENA;
2895         cpu_reg.state = BCE_TXP_CPU_STATE;
2896         cpu_reg.state_value_clear = 0xffffff;
2897         cpu_reg.gpr0 = BCE_TXP_CPU_REG_FILE;
2898         cpu_reg.evmask = BCE_TXP_CPU_EVENT_MASK;
2899         cpu_reg.pc = BCE_TXP_CPU_PROGRAM_COUNTER;
2900         cpu_reg.inst = BCE_TXP_CPU_INSTRUCTION;
2901         cpu_reg.bp = BCE_TXP_CPU_HW_BREAKPOINT;
2902         cpu_reg.spad_base = BCE_TXP_SCRATCH;
2903         cpu_reg.mips_view_base = 0x8000000;
2904
2905         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
2906             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
2907                 fw.ver_major = bce_TXP_b09FwReleaseMajor;
2908                 fw.ver_minor = bce_TXP_b09FwReleaseMinor;
2909                 fw.ver_fix = bce_TXP_b09FwReleaseFix;
2910                 fw.start_addr = bce_TXP_b09FwStartAddr;
2911
2912                 fw.text_addr = bce_TXP_b09FwTextAddr;
2913                 fw.text_len = bce_TXP_b09FwTextLen;
2914                 fw.text_index = 0;
2915                 fw.text = bce_TXP_b09FwText;
2916
2917                 fw.data_addr = bce_TXP_b09FwDataAddr;
2918                 fw.data_len = bce_TXP_b09FwDataLen;
2919                 fw.data_index = 0;
2920                 fw.data = bce_TXP_b09FwData;
2921
2922                 fw.sbss_addr = bce_TXP_b09FwSbssAddr;
2923                 fw.sbss_len = bce_TXP_b09FwSbssLen;
2924                 fw.sbss_index = 0;
2925                 fw.sbss = bce_TXP_b09FwSbss;
2926
2927                 fw.bss_addr = bce_TXP_b09FwBssAddr;
2928                 fw.bss_len = bce_TXP_b09FwBssLen;
2929                 fw.bss_index = 0;
2930                 fw.bss = bce_TXP_b09FwBss;
2931
2932                 fw.rodata_addr = bce_TXP_b09FwRodataAddr;
2933                 fw.rodata_len = bce_TXP_b09FwRodataLen;
2934                 fw.rodata_index = 0;
2935                 fw.rodata = bce_TXP_b09FwRodata;
2936         } else {
2937                 fw.ver_major = bce_TXP_b06FwReleaseMajor;
2938                 fw.ver_minor = bce_TXP_b06FwReleaseMinor;
2939                 fw.ver_fix = bce_TXP_b06FwReleaseFix;
2940                 fw.start_addr = bce_TXP_b06FwStartAddr;
2941
2942                 fw.text_addr = bce_TXP_b06FwTextAddr;
2943                 fw.text_len = bce_TXP_b06FwTextLen;
2944                 fw.text_index = 0;
2945                 fw.text = bce_TXP_b06FwText;
2946
2947                 fw.data_addr = bce_TXP_b06FwDataAddr;
2948                 fw.data_len = bce_TXP_b06FwDataLen;
2949                 fw.data_index = 0;
2950                 fw.data = bce_TXP_b06FwData;
2951
2952                 fw.sbss_addr = bce_TXP_b06FwSbssAddr;
2953                 fw.sbss_len = bce_TXP_b06FwSbssLen;
2954                 fw.sbss_index = 0;
2955                 fw.sbss = bce_TXP_b06FwSbss;
2956
2957                 fw.bss_addr = bce_TXP_b06FwBssAddr;
2958                 fw.bss_len = bce_TXP_b06FwBssLen;
2959                 fw.bss_index = 0;
2960                 fw.bss = bce_TXP_b06FwBss;
2961
2962                 fw.rodata_addr = bce_TXP_b06FwRodataAddr;
2963                 fw.rodata_len = bce_TXP_b06FwRodataLen;
2964                 fw.rodata_index = 0;
2965                 fw.rodata = bce_TXP_b06FwRodata;
2966         }
2967
2968         DBPRINT(sc, BCE_INFO_RESET, "Loading TX firmware.\n");
2969         bce_load_cpu_fw(sc, &cpu_reg, &fw);
2970         bce_start_cpu(sc, &cpu_reg);
2971 }
2972
2973
2974 /****************************************************************************/
2975 /* Initialize the TPAT CPU.                                                 */
2976 /*                                                                          */
2977 /* Returns:                                                                 */
2978 /*   Nothing.                                                               */
2979 /****************************************************************************/
2980 static void
2981 bce_init_tpat_cpu(struct bce_softc *sc)
2982 {
2983         struct cpu_reg cpu_reg;
2984         struct fw_info fw;
2985
2986         cpu_reg.mode = BCE_TPAT_CPU_MODE;
2987         cpu_reg.mode_value_halt = BCE_TPAT_CPU_MODE_SOFT_HALT;
2988         cpu_reg.mode_value_sstep = BCE_TPAT_CPU_MODE_STEP_ENA;
2989         cpu_reg.state = BCE_TPAT_CPU_STATE;
2990         cpu_reg.state_value_clear = 0xffffff;
2991         cpu_reg.gpr0 = BCE_TPAT_CPU_REG_FILE;
2992         cpu_reg.evmask = BCE_TPAT_CPU_EVENT_MASK;
2993         cpu_reg.pc = BCE_TPAT_CPU_PROGRAM_COUNTER;
2994         cpu_reg.inst = BCE_TPAT_CPU_INSTRUCTION;
2995         cpu_reg.bp = BCE_TPAT_CPU_HW_BREAKPOINT;
2996         cpu_reg.spad_base = BCE_TPAT_SCRATCH;
2997         cpu_reg.mips_view_base = 0x8000000;
2998
2999         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3000             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3001                 fw.ver_major = bce_TPAT_b09FwReleaseMajor;
3002                 fw.ver_minor = bce_TPAT_b09FwReleaseMinor;
3003                 fw.ver_fix = bce_TPAT_b09FwReleaseFix;
3004                 fw.start_addr = bce_TPAT_b09FwStartAddr;
3005
3006                 fw.text_addr = bce_TPAT_b09FwTextAddr;
3007                 fw.text_len = bce_TPAT_b09FwTextLen;
3008                 fw.text_index = 0;
3009                 fw.text = bce_TPAT_b09FwText;
3010
3011                 fw.data_addr = bce_TPAT_b09FwDataAddr;
3012                 fw.data_len = bce_TPAT_b09FwDataLen;
3013                 fw.data_index = 0;
3014                 fw.data = bce_TPAT_b09FwData;
3015
3016                 fw.sbss_addr = bce_TPAT_b09FwSbssAddr;
3017                 fw.sbss_len = bce_TPAT_b09FwSbssLen;
3018                 fw.sbss_index = 0;
3019                 fw.sbss = bce_TPAT_b09FwSbss;
3020
3021                 fw.bss_addr = bce_TPAT_b09FwBssAddr;
3022                 fw.bss_len = bce_TPAT_b09FwBssLen;
3023                 fw.bss_index = 0;
3024                 fw.bss = bce_TPAT_b09FwBss;
3025
3026                 fw.rodata_addr = bce_TPAT_b09FwRodataAddr;
3027                 fw.rodata_len = bce_TPAT_b09FwRodataLen;
3028                 fw.rodata_index = 0;
3029                 fw.rodata = bce_TPAT_b09FwRodata;
3030         } else {
3031                 fw.ver_major = bce_TPAT_b06FwReleaseMajor;
3032                 fw.ver_minor = bce_TPAT_b06FwReleaseMinor;
3033                 fw.ver_fix = bce_TPAT_b06FwReleaseFix;
3034                 fw.start_addr = bce_TPAT_b06FwStartAddr;
3035
3036                 fw.text_addr = bce_TPAT_b06FwTextAddr;
3037                 fw.text_len = bce_TPAT_b06FwTextLen;
3038                 fw.text_index = 0;
3039                 fw.text = bce_TPAT_b06FwText;
3040
3041                 fw.data_addr = bce_TPAT_b06FwDataAddr;
3042                 fw.data_len = bce_TPAT_b06FwDataLen;
3043                 fw.data_index = 0;
3044                 fw.data = bce_TPAT_b06FwData;
3045
3046                 fw.sbss_addr = bce_TPAT_b06FwSbssAddr;
3047                 fw.sbss_len = bce_TPAT_b06FwSbssLen;
3048                 fw.sbss_index = 0;
3049                 fw.sbss = bce_TPAT_b06FwSbss;
3050
3051                 fw.bss_addr = bce_TPAT_b06FwBssAddr;
3052                 fw.bss_len = bce_TPAT_b06FwBssLen;
3053                 fw.bss_index = 0;
3054                 fw.bss = bce_TPAT_b06FwBss;
3055
3056                 fw.rodata_addr = bce_TPAT_b06FwRodataAddr;
3057                 fw.rodata_len = bce_TPAT_b06FwRodataLen;
3058                 fw.rodata_index = 0;
3059                 fw.rodata = bce_TPAT_b06FwRodata;
3060         }
3061
3062         DBPRINT(sc, BCE_INFO_RESET, "Loading TPAT firmware.\n");
3063         bce_load_cpu_fw(sc, &cpu_reg, &fw);
3064         bce_start_cpu(sc, &cpu_reg);
3065 }
3066
3067
3068 /****************************************************************************/
3069 /* Initialize the CP CPU.                                                   */
3070 /*                                                                          */
3071 /* Returns:                                                                 */
3072 /*   Nothing.                                                               */
3073 /****************************************************************************/
3074 static void
3075 bce_init_cp_cpu(struct bce_softc *sc)
3076 {
3077         struct cpu_reg cpu_reg;
3078         struct fw_info fw;
3079
3080         cpu_reg.mode = BCE_CP_CPU_MODE;
3081         cpu_reg.mode_value_halt = BCE_CP_CPU_MODE_SOFT_HALT;
3082         cpu_reg.mode_value_sstep = BCE_CP_CPU_MODE_STEP_ENA;
3083         cpu_reg.state = BCE_CP_CPU_STATE;
3084         cpu_reg.state_value_clear = 0xffffff;
3085         cpu_reg.gpr0 = BCE_CP_CPU_REG_FILE;
3086         cpu_reg.evmask = BCE_CP_CPU_EVENT_MASK;
3087         cpu_reg.pc = BCE_CP_CPU_PROGRAM_COUNTER;
3088         cpu_reg.inst = BCE_CP_CPU_INSTRUCTION;
3089         cpu_reg.bp = BCE_CP_CPU_HW_BREAKPOINT;
3090         cpu_reg.spad_base = BCE_CP_SCRATCH;
3091         cpu_reg.mips_view_base = 0x8000000;
3092
3093         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3094             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3095                 fw.ver_major = bce_CP_b09FwReleaseMajor;
3096                 fw.ver_minor = bce_CP_b09FwReleaseMinor;
3097                 fw.ver_fix = bce_CP_b09FwReleaseFix;
3098                 fw.start_addr = bce_CP_b09FwStartAddr;
3099
3100                 fw.text_addr = bce_CP_b09FwTextAddr;
3101                 fw.text_len = bce_CP_b09FwTextLen;
3102                 fw.text_index = 0;
3103                 fw.text = bce_CP_b09FwText;
3104
3105                 fw.data_addr = bce_CP_b09FwDataAddr;
3106                 fw.data_len = bce_CP_b09FwDataLen;
3107                 fw.data_index = 0;
3108                 fw.data = bce_CP_b09FwData;
3109
3110                 fw.sbss_addr = bce_CP_b09FwSbssAddr;
3111                 fw.sbss_len = bce_CP_b09FwSbssLen;
3112                 fw.sbss_index = 0;
3113                 fw.sbss = bce_CP_b09FwSbss;
3114
3115                 fw.bss_addr = bce_CP_b09FwBssAddr;
3116                 fw.bss_len = bce_CP_b09FwBssLen;
3117                 fw.bss_index = 0;
3118                 fw.bss = bce_CP_b09FwBss;
3119
3120                 fw.rodata_addr = bce_CP_b09FwRodataAddr;
3121                 fw.rodata_len = bce_CP_b09FwRodataLen;
3122                 fw.rodata_index = 0;
3123                 fw.rodata = bce_CP_b09FwRodata;
3124         } else {
3125                 fw.ver_major = bce_CP_b06FwReleaseMajor;
3126                 fw.ver_minor = bce_CP_b06FwReleaseMinor;
3127                 fw.ver_fix = bce_CP_b06FwReleaseFix;
3128                 fw.start_addr = bce_CP_b06FwStartAddr;
3129
3130                 fw.text_addr = bce_CP_b06FwTextAddr;
3131                 fw.text_len = bce_CP_b06FwTextLen;
3132                 fw.text_index = 0;
3133                 fw.text = bce_CP_b06FwText;
3134
3135                 fw.data_addr = bce_CP_b06FwDataAddr;
3136                 fw.data_len = bce_CP_b06FwDataLen;
3137                 fw.data_index = 0;
3138                 fw.data = bce_CP_b06FwData;
3139
3140                 fw.sbss_addr = bce_CP_b06FwSbssAddr;
3141                 fw.sbss_len = bce_CP_b06FwSbssLen;
3142                 fw.sbss_index = 0;
3143                 fw.sbss = bce_CP_b06FwSbss;
3144
3145                 fw.bss_addr = bce_CP_b06FwBssAddr;
3146                 fw.bss_len = bce_CP_b06FwBssLen;
3147                 fw.bss_index = 0;
3148                 fw.bss = bce_CP_b06FwBss;
3149
3150                 fw.rodata_addr = bce_CP_b06FwRodataAddr;
3151                 fw.rodata_len = bce_CP_b06FwRodataLen;
3152                 fw.rodata_index = 0;
3153                 fw.rodata = bce_CP_b06FwRodata;
3154         }
3155
3156         DBPRINT(sc, BCE_INFO_RESET, "Loading CP firmware.\n");
3157         bce_load_cpu_fw(sc, &cpu_reg, &fw);
3158         bce_start_cpu(sc, &cpu_reg);
3159 }
3160
3161
3162 /****************************************************************************/
3163 /* Initialize the COM CPU.                                                 */
3164 /*                                                                          */
3165 /* Returns:                                                                 */
3166 /*   Nothing.                                                               */
3167 /****************************************************************************/
3168 static void
3169 bce_init_com_cpu(struct bce_softc *sc)
3170 {
3171         struct cpu_reg cpu_reg;
3172         struct fw_info fw;
3173
3174         cpu_reg.mode = BCE_COM_CPU_MODE;
3175         cpu_reg.mode_value_halt = BCE_COM_CPU_MODE_SOFT_HALT;
3176         cpu_reg.mode_value_sstep = BCE_COM_CPU_MODE_STEP_ENA;
3177         cpu_reg.state = BCE_COM_CPU_STATE;
3178         cpu_reg.state_value_clear = 0xffffff;
3179         cpu_reg.gpr0 = BCE_COM_CPU_REG_FILE;
3180         cpu_reg.evmask = BCE_COM_CPU_EVENT_MASK;
3181         cpu_reg.pc = BCE_COM_CPU_PROGRAM_COUNTER;
3182         cpu_reg.inst = BCE_COM_CPU_INSTRUCTION;
3183         cpu_reg.bp = BCE_COM_CPU_HW_BREAKPOINT;
3184         cpu_reg.spad_base = BCE_COM_SCRATCH;
3185         cpu_reg.mips_view_base = 0x8000000;
3186
3187         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3188             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3189                 fw.ver_major = bce_COM_b09FwReleaseMajor;
3190                 fw.ver_minor = bce_COM_b09FwReleaseMinor;
3191                 fw.ver_fix = bce_COM_b09FwReleaseFix;
3192                 fw.start_addr = bce_COM_b09FwStartAddr;
3193
3194                 fw.text_addr = bce_COM_b09FwTextAddr;
3195                 fw.text_len = bce_COM_b09FwTextLen;
3196                 fw.text_index = 0;
3197                 fw.text = bce_COM_b09FwText;
3198
3199                 fw.data_addr = bce_COM_b09FwDataAddr;
3200                 fw.data_len = bce_COM_b09FwDataLen;
3201                 fw.data_index = 0;
3202                 fw.data = bce_COM_b09FwData;
3203
3204                 fw.sbss_addr = bce_COM_b09FwSbssAddr;
3205                 fw.sbss_len = bce_COM_b09FwSbssLen;
3206                 fw.sbss_index = 0;
3207                 fw.sbss = bce_COM_b09FwSbss;
3208
3209                 fw.bss_addr = bce_COM_b09FwBssAddr;
3210                 fw.bss_len = bce_COM_b09FwBssLen;
3211                 fw.bss_index = 0;
3212                 fw.bss = bce_COM_b09FwBss;
3213
3214                 fw.rodata_addr = bce_COM_b09FwRodataAddr;
3215                 fw.rodata_len = bce_COM_b09FwRodataLen;
3216                 fw.rodata_index = 0;
3217                 fw.rodata = bce_COM_b09FwRodata;
3218         } else {
3219                 fw.ver_major = bce_COM_b06FwReleaseMajor;
3220                 fw.ver_minor = bce_COM_b06FwReleaseMinor;
3221                 fw.ver_fix = bce_COM_b06FwReleaseFix;
3222                 fw.start_addr = bce_COM_b06FwStartAddr;
3223
3224                 fw.text_addr = bce_COM_b06FwTextAddr;
3225                 fw.text_len = bce_COM_b06FwTextLen;
3226                 fw.text_index = 0;
3227                 fw.text = bce_COM_b06FwText;
3228
3229                 fw.data_addr = bce_COM_b06FwDataAddr;
3230                 fw.data_len = bce_COM_b06FwDataLen;
3231                 fw.data_index = 0;
3232                 fw.data = bce_COM_b06FwData;
3233
3234                 fw.sbss_addr = bce_COM_b06FwSbssAddr;
3235                 fw.sbss_len = bce_COM_b06FwSbssLen;
3236                 fw.sbss_index = 0;
3237                 fw.sbss = bce_COM_b06FwSbss;
3238
3239                 fw.bss_addr = bce_COM_b06FwBssAddr;
3240                 fw.bss_len = bce_COM_b06FwBssLen;
3241                 fw.bss_index = 0;
3242                 fw.bss = bce_COM_b06FwBss;
3243
3244                 fw.rodata_addr = bce_COM_b06FwRodataAddr;
3245                 fw.rodata_len = bce_COM_b06FwRodataLen;
3246                 fw.rodata_index = 0;
3247                 fw.rodata = bce_COM_b06FwRodata;
3248         }
3249
3250         DBPRINT(sc, BCE_INFO_RESET, "Loading COM firmware.\n");
3251         bce_load_cpu_fw(sc, &cpu_reg, &fw);
3252         bce_start_cpu(sc, &cpu_reg);
3253 }
3254
3255
3256 /****************************************************************************/
3257 /* Initialize the RV2P, RX, TX, TPAT, COM, and CP CPUs.                     */
3258 /*                                                                          */
3259 /* Loads the firmware for each CPU and starts the CPU.                      */
3260 /*                                                                          */
3261 /* Returns:                                                                 */
3262 /*   Nothing.                                                               */
3263 /****************************************************************************/
3264 static void
3265 bce_init_cpus(struct bce_softc *sc)
3266 {
3267         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3268             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3269                 if (BCE_CHIP_REV(sc) == BCE_CHIP_REV_Ax) {
3270                         bce_load_rv2p_fw(sc, bce_xi90_rv2p_proc1,
3271                             sizeof(bce_xi90_rv2p_proc1), RV2P_PROC1);
3272                         bce_load_rv2p_fw(sc, bce_xi90_rv2p_proc2,
3273                             sizeof(bce_xi90_rv2p_proc2), RV2P_PROC2);
3274                 } else {
3275                         bce_load_rv2p_fw(sc, bce_xi_rv2p_proc1,
3276                             sizeof(bce_xi_rv2p_proc1), RV2P_PROC1);
3277                         bce_load_rv2p_fw(sc, bce_xi_rv2p_proc2,
3278                             sizeof(bce_xi_rv2p_proc2), RV2P_PROC2);
3279                 }
3280         } else {
3281                 bce_load_rv2p_fw(sc, bce_rv2p_proc1,
3282                     sizeof(bce_rv2p_proc1), RV2P_PROC1);
3283                 bce_load_rv2p_fw(sc, bce_rv2p_proc2,
3284                     sizeof(bce_rv2p_proc2), RV2P_PROC2);
3285         }
3286
3287         bce_init_rxp_cpu(sc);
3288         bce_init_txp_cpu(sc);
3289         bce_init_tpat_cpu(sc);
3290         bce_init_com_cpu(sc);
3291         bce_init_cp_cpu(sc);
3292 }
3293
3294
3295 /****************************************************************************/
3296 /* Initialize context memory.                                               */
3297 /*                                                                          */
3298 /* Clears the memory associated with each Context ID (CID).                 */
3299 /*                                                                          */
3300 /* Returns:                                                                 */
3301 /*   Nothing.                                                               */
3302 /****************************************************************************/
3303 static int
3304 bce_init_ctx(struct bce_softc *sc)
3305 {
3306         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3307             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3308                 /* DRC: Replace this constant value with a #define. */
3309                 int i, retry_cnt = 10;
3310                 uint32_t val;
3311
3312                 /*
3313                  * BCM5709 context memory may be cached
3314                  * in host memory so prepare the host memory
3315                  * for access.
3316                  */
3317                 val = BCE_CTX_COMMAND_ENABLED | BCE_CTX_COMMAND_MEM_INIT |
3318                     (1 << 12);
3319                 val |= (BCM_PAGE_BITS - 8) << 16;
3320                 REG_WR(sc, BCE_CTX_COMMAND, val);
3321
3322                 /* Wait for mem init command to complete. */
3323                 for (i = 0; i < retry_cnt; i++) {
3324                         val = REG_RD(sc, BCE_CTX_COMMAND);
3325                         if (!(val & BCE_CTX_COMMAND_MEM_INIT))
3326                                 break;
3327                         DELAY(2);
3328                 }
3329                 if (i == retry_cnt) {
3330                         device_printf(sc->bce_dev,
3331                             "Context memory initialization failed!\n");
3332                         return ETIMEDOUT;
3333                 }
3334
3335                 for (i = 0; i < sc->ctx_pages; i++) {
3336                         int j;
3337
3338                         /*
3339                          * Set the physical address of the context
3340                          * memory cache.
3341                          */
3342                         REG_WR(sc, BCE_CTX_HOST_PAGE_TBL_DATA0,
3343                             BCE_ADDR_LO(sc->ctx_paddr[i] & 0xfffffff0) |
3344                             BCE_CTX_HOST_PAGE_TBL_DATA0_VALID);
3345                         REG_WR(sc, BCE_CTX_HOST_PAGE_TBL_DATA1,
3346                             BCE_ADDR_HI(sc->ctx_paddr[i]));
3347                         REG_WR(sc, BCE_CTX_HOST_PAGE_TBL_CTRL,
3348                             i | BCE_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ);
3349
3350                         /*
3351                          * Verify that the context memory write was successful.
3352                          */
3353                         for (j = 0; j < retry_cnt; j++) {
3354                                 val = REG_RD(sc, BCE_CTX_HOST_PAGE_TBL_CTRL);
3355                                 if ((val &
3356                                     BCE_CTX_HOST_PAGE_TBL_CTRL_WRITE_REQ) == 0)
3357                                         break;
3358                                 DELAY(5);
3359                         }
3360                         if (j == retry_cnt) {
3361                                 device_printf(sc->bce_dev,
3362                                     "Failed to initialize context page!\n");
3363                                 return ETIMEDOUT;
3364                         }
3365                 }
3366         } else {
3367                 uint32_t vcid_addr, offset;
3368
3369                 /*
3370                  * For the 5706/5708, context memory is local to
3371                  * the controller, so initialize the controller
3372                  * context memory.
3373                  */
3374
3375                 vcid_addr = GET_CID_ADDR(96);
3376                 while (vcid_addr) {
3377                         vcid_addr -= PHY_CTX_SIZE;
3378
3379                         REG_WR(sc, BCE_CTX_VIRT_ADDR, 0);
3380                         REG_WR(sc, BCE_CTX_PAGE_TBL, vcid_addr);
3381
3382                         for (offset = 0; offset < PHY_CTX_SIZE; offset += 4)
3383                                 CTX_WR(sc, 0x00, offset, 0);
3384
3385                         REG_WR(sc, BCE_CTX_VIRT_ADDR, vcid_addr);
3386                         REG_WR(sc, BCE_CTX_PAGE_TBL, vcid_addr);
3387                 }
3388         }
3389         return 0;
3390 }
3391
3392
3393 /****************************************************************************/
3394 /* Fetch the permanent MAC address of the controller.                       */
3395 /*                                                                          */
3396 /* Returns:                                                                 */
3397 /*   Nothing.                                                               */
3398 /****************************************************************************/
3399 static void
3400 bce_get_mac_addr(struct bce_softc *sc)
3401 {
3402         uint32_t mac_lo = 0, mac_hi = 0;
3403
3404         /*
3405          * The NetXtreme II bootcode populates various NIC
3406          * power-on and runtime configuration items in a
3407          * shared memory area.  The factory configured MAC
3408          * address is available from both NVRAM and the
3409          * shared memory area so we'll read the value from
3410          * shared memory for speed.
3411          */
3412
3413         mac_hi = bce_shmem_rd(sc,  BCE_PORT_HW_CFG_MAC_UPPER);
3414         mac_lo = bce_shmem_rd(sc, BCE_PORT_HW_CFG_MAC_LOWER);
3415
3416         if (mac_lo == 0 && mac_hi == 0) {
3417                 if_printf(&sc->arpcom.ac_if, "Invalid Ethernet address!\n");
3418         } else {
3419                 sc->eaddr[0] = (u_char)(mac_hi >> 8);
3420                 sc->eaddr[1] = (u_char)(mac_hi >> 0);
3421                 sc->eaddr[2] = (u_char)(mac_lo >> 24);
3422                 sc->eaddr[3] = (u_char)(mac_lo >> 16);
3423                 sc->eaddr[4] = (u_char)(mac_lo >> 8);
3424                 sc->eaddr[5] = (u_char)(mac_lo >> 0);
3425         }
3426
3427         DBPRINT(sc, BCE_INFO, "Permanent Ethernet address = %6D\n", sc->eaddr, ":");
3428 }
3429
3430
3431 /****************************************************************************/
3432 /* Program the MAC address.                                                 */
3433 /*                                                                          */
3434 /* Returns:                                                                 */
3435 /*   Nothing.                                                               */
3436 /****************************************************************************/
3437 static void
3438 bce_set_mac_addr(struct bce_softc *sc)
3439 {
3440         const uint8_t *mac_addr = sc->eaddr;
3441         uint32_t val;
3442
3443         DBPRINT(sc, BCE_INFO, "Setting Ethernet address = %6D\n",
3444                 sc->eaddr, ":");
3445
3446         val = (mac_addr[0] << 8) | mac_addr[1];
3447         REG_WR(sc, BCE_EMAC_MAC_MATCH0, val);
3448
3449         val = (mac_addr[2] << 24) |
3450               (mac_addr[3] << 16) |
3451               (mac_addr[4] << 8) |
3452               mac_addr[5];
3453         REG_WR(sc, BCE_EMAC_MAC_MATCH1, val);
3454 }
3455
3456
3457 /****************************************************************************/
3458 /* Stop the controller.                                                     */
3459 /*                                                                          */
3460 /* Returns:                                                                 */
3461 /*   Nothing.                                                               */
3462 /****************************************************************************/
3463 static void
3464 bce_stop(struct bce_softc *sc)
3465 {
3466         struct ifnet *ifp = &sc->arpcom.ac_if;
3467
3468         ASSERT_SERIALIZED(ifp->if_serializer);
3469
3470         callout_stop(&sc->bce_tick_callout);
3471
3472         /* Disable the transmit/receive blocks. */
3473         REG_WR(sc, BCE_MISC_ENABLE_CLR_BITS, BCE_MISC_ENABLE_CLR_DEFAULT);
3474         REG_RD(sc, BCE_MISC_ENABLE_CLR_BITS);
3475         DELAY(20);
3476
3477         bce_disable_intr(sc);
3478
3479         /* Free the RX lists. */
3480         bce_free_rx_chain(sc);
3481
3482         /* Free TX buffers. */
3483         bce_free_tx_chain(sc);
3484
3485         sc->bce_link = 0;
3486         sc->bce_coalchg_mask = 0;
3487
3488         ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE);
3489         ifp->if_timer = 0;
3490 }
3491
3492
3493 static int
3494 bce_reset(struct bce_softc *sc, uint32_t reset_code)
3495 {
3496         uint32_t val;
3497         int i, rc = 0;
3498
3499         /* Wait for pending PCI transactions to complete. */
3500         REG_WR(sc, BCE_MISC_ENABLE_CLR_BITS,
3501                BCE_MISC_ENABLE_CLR_BITS_TX_DMA_ENABLE |
3502                BCE_MISC_ENABLE_CLR_BITS_DMA_ENGINE_ENABLE |
3503                BCE_MISC_ENABLE_CLR_BITS_RX_DMA_ENABLE |
3504                BCE_MISC_ENABLE_CLR_BITS_HOST_COALESCE_ENABLE);
3505         val = REG_RD(sc, BCE_MISC_ENABLE_CLR_BITS);
3506         DELAY(5);
3507
3508         /* Disable DMA */
3509         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3510             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3511                 val = REG_RD(sc, BCE_MISC_NEW_CORE_CTL);
3512                 val &= ~BCE_MISC_NEW_CORE_CTL_DMA_ENABLE;
3513                 REG_WR(sc, BCE_MISC_NEW_CORE_CTL, val);
3514         }
3515
3516         /* Assume bootcode is running. */
3517         sc->bce_fw_timed_out = 0;
3518         sc->bce_drv_cardiac_arrest = 0;
3519
3520         /* Give the firmware a chance to prepare for the reset. */
3521         rc = bce_fw_sync(sc, BCE_DRV_MSG_DATA_WAIT0 | reset_code);
3522         if (rc) {
3523                 if_printf(&sc->arpcom.ac_if,
3524                           "Firmware is not ready for reset\n");
3525                 return rc;
3526         }
3527
3528         /* Set a firmware reminder that this is a soft reset. */
3529         bce_shmem_wr(sc, BCE_DRV_RESET_SIGNATURE,
3530             BCE_DRV_RESET_SIGNATURE_MAGIC);
3531
3532         /* Dummy read to force the chip to complete all current transactions. */
3533         val = REG_RD(sc, BCE_MISC_ID);
3534
3535         /* Chip reset. */
3536         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3537             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3538                 REG_WR(sc, BCE_MISC_COMMAND, BCE_MISC_COMMAND_SW_RESET);
3539                 REG_RD(sc, BCE_MISC_COMMAND);
3540                 DELAY(5);
3541
3542                 val = BCE_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
3543                     BCE_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
3544
3545                 pci_write_config(sc->bce_dev, BCE_PCICFG_MISC_CONFIG, val, 4);
3546         } else {
3547                 val = BCE_PCICFG_MISC_CONFIG_CORE_RST_REQ |
3548                     BCE_PCICFG_MISC_CONFIG_REG_WINDOW_ENA |
3549                     BCE_PCICFG_MISC_CONFIG_TARGET_MB_WORD_SWAP;
3550                 REG_WR(sc, BCE_PCICFG_MISC_CONFIG, val);
3551
3552                 /* Allow up to 30us for reset to complete. */
3553                 for (i = 0; i < 10; i++) {
3554                         val = REG_RD(sc, BCE_PCICFG_MISC_CONFIG);
3555                         if ((val & (BCE_PCICFG_MISC_CONFIG_CORE_RST_REQ |
3556                             BCE_PCICFG_MISC_CONFIG_CORE_RST_BSY)) == 0)
3557                                 break;
3558                         DELAY(10);
3559                 }
3560
3561                 /* Check that reset completed successfully. */
3562                 if (val & (BCE_PCICFG_MISC_CONFIG_CORE_RST_REQ |
3563                     BCE_PCICFG_MISC_CONFIG_CORE_RST_BSY)) {
3564                         if_printf(&sc->arpcom.ac_if, "Reset failed!\n");
3565                         return EBUSY;
3566                 }
3567         }
3568
3569         /* Make sure byte swapping is properly configured. */
3570         val = REG_RD(sc, BCE_PCI_SWAP_DIAG0);
3571         if (val != 0x01020304) {
3572                 if_printf(&sc->arpcom.ac_if, "Byte swap is incorrect!\n");
3573                 return ENODEV;
3574         }
3575
3576         /* Just completed a reset, assume that firmware is running again. */
3577         sc->bce_fw_timed_out = 0;
3578         sc->bce_drv_cardiac_arrest = 0;
3579
3580         /* Wait for the firmware to finish its initialization. */
3581         rc = bce_fw_sync(sc, BCE_DRV_MSG_DATA_WAIT1 | reset_code);
3582         if (rc) {
3583                 if_printf(&sc->arpcom.ac_if,
3584                           "Firmware did not complete initialization!\n");
3585         }
3586         return rc;
3587 }
3588
3589
3590 static int
3591 bce_chipinit(struct bce_softc *sc)
3592 {
3593         uint32_t val;
3594         int rc = 0;
3595
3596         /* Make sure the interrupt is not active. */
3597         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD, BCE_PCICFG_INT_ACK_CMD_MASK_INT);
3598         REG_RD(sc, BCE_PCICFG_INT_ACK_CMD);
3599
3600         /*
3601          * Initialize DMA byte/word swapping, configure the number of DMA
3602          * channels and PCI clock compensation delay.
3603          */
3604         val = BCE_DMA_CONFIG_DATA_BYTE_SWAP |
3605               BCE_DMA_CONFIG_DATA_WORD_SWAP |
3606 #if BYTE_ORDER == BIG_ENDIAN
3607               BCE_DMA_CONFIG_CNTL_BYTE_SWAP |
3608 #endif
3609               BCE_DMA_CONFIG_CNTL_WORD_SWAP |
3610               DMA_READ_CHANS << 12 |
3611               DMA_WRITE_CHANS << 16;
3612
3613         val |= (0x2 << 20) | BCE_DMA_CONFIG_CNTL_PCI_COMP_DLY;
3614
3615         if ((sc->bce_flags & BCE_PCIX_FLAG) && sc->bus_speed_mhz == 133)
3616                 val |= BCE_DMA_CONFIG_PCI_FAST_CLK_CMP;
3617
3618         /*
3619          * This setting resolves a problem observed on certain Intel PCI
3620          * chipsets that cannot handle multiple outstanding DMA operations.
3621          * See errata E9_5706A1_65.
3622          */
3623         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5706 &&
3624             BCE_CHIP_ID(sc) != BCE_CHIP_ID_5706_A0 &&
3625             !(sc->bce_flags & BCE_PCIX_FLAG))
3626                 val |= BCE_DMA_CONFIG_CNTL_PING_PONG_DMA;
3627
3628         REG_WR(sc, BCE_DMA_CONFIG, val);
3629
3630         /* Enable the RX_V2P and Context state machines before access. */
3631         REG_WR(sc, BCE_MISC_ENABLE_SET_BITS,
3632                BCE_MISC_ENABLE_SET_BITS_HOST_COALESCE_ENABLE |
3633                BCE_MISC_ENABLE_STATUS_BITS_RX_V2P_ENABLE |
3634                BCE_MISC_ENABLE_STATUS_BITS_CONTEXT_ENABLE);
3635
3636         /* Initialize context mapping and zero out the quick contexts. */
3637         rc = bce_init_ctx(sc);
3638         if (rc != 0)
3639                 return rc;
3640
3641         /* Initialize the on-boards CPUs */
3642         bce_init_cpus(sc);
3643
3644         /* Enable management frames (NC-SI) to flow to the MCP. */
3645         if (sc->bce_flags & BCE_MFW_ENABLE_FLAG) {
3646                 val = REG_RD(sc, BCE_RPM_MGMT_PKT_CTRL) |
3647                     BCE_RPM_MGMT_PKT_CTRL_MGMT_EN;
3648                 REG_WR(sc, BCE_RPM_MGMT_PKT_CTRL, val);
3649         }
3650
3651         /* Prepare NVRAM for access. */
3652         rc = bce_init_nvram(sc);
3653         if (rc != 0)
3654                 return rc;
3655
3656         /* Set the kernel bypass block size */
3657         val = REG_RD(sc, BCE_MQ_CONFIG);
3658         val &= ~BCE_MQ_CONFIG_KNL_BYP_BLK_SIZE;
3659         val |= BCE_MQ_CONFIG_KNL_BYP_BLK_SIZE_256;
3660
3661         /* Enable bins used on the 5709/5716. */
3662         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3663             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3664                 val |= BCE_MQ_CONFIG_BIN_MQ_MODE;
3665                 if (BCE_CHIP_ID(sc) == BCE_CHIP_ID_5709_A1)
3666                         val |= BCE_MQ_CONFIG_HALT_DIS;
3667         }
3668
3669         REG_WR(sc, BCE_MQ_CONFIG, val);
3670
3671         val = 0x10000 + (MAX_CID_CNT * MB_KERNEL_CTX_SIZE);
3672         REG_WR(sc, BCE_MQ_KNL_BYP_WIND_START, val);
3673         REG_WR(sc, BCE_MQ_KNL_WIND_END, val);
3674
3675         /* Set the page size and clear the RV2P processor stall bits. */
3676         val = (BCM_PAGE_BITS - 8) << 24;
3677         REG_WR(sc, BCE_RV2P_CONFIG, val);
3678
3679         /* Configure page size. */
3680         val = REG_RD(sc, BCE_TBDR_CONFIG);
3681         val &= ~BCE_TBDR_CONFIG_PAGE_SIZE;
3682         val |= (BCM_PAGE_BITS - 8) << 24 | 0x40;
3683         REG_WR(sc, BCE_TBDR_CONFIG, val);
3684
3685         /* Set the perfect match control register to default. */
3686         REG_WR_IND(sc, BCE_RXP_PM_CTRL, 0);
3687
3688         return 0;
3689 }
3690
3691
3692 /****************************************************************************/
3693 /* Initialize the controller in preparation to send/receive traffic.        */
3694 /*                                                                          */
3695 /* Returns:                                                                 */
3696 /*   0 for success, positive value for failure.                             */
3697 /****************************************************************************/
3698 static int
3699 bce_blockinit(struct bce_softc *sc)
3700 {
3701         uint32_t reg, val;
3702         int rc = 0;
3703
3704         /* Load the hardware default MAC address. */
3705         bce_set_mac_addr(sc);
3706
3707         /* Set the Ethernet backoff seed value */
3708         val = sc->eaddr[0] + (sc->eaddr[1] << 8) + (sc->eaddr[2] << 16) +
3709               sc->eaddr[3] + (sc->eaddr[4] << 8) + (sc->eaddr[5] << 16);
3710         REG_WR(sc, BCE_EMAC_BACKOFF_SEED, val);
3711
3712         sc->last_status_idx = 0;
3713         sc->rx_mode = BCE_EMAC_RX_MODE_SORT_MODE;
3714
3715         sc->pulse_check_status_idx = 0xffff;
3716
3717         /* Set up link change interrupt generation. */
3718         REG_WR(sc, BCE_EMAC_ATTENTION_ENA, BCE_EMAC_ATTENTION_ENA_LINK);
3719
3720         /* Program the physical address of the status block. */
3721         REG_WR(sc, BCE_HC_STATUS_ADDR_L, BCE_ADDR_LO(sc->status_block_paddr));
3722         REG_WR(sc, BCE_HC_STATUS_ADDR_H, BCE_ADDR_HI(sc->status_block_paddr));
3723
3724         /* Program the physical address of the statistics block. */
3725         REG_WR(sc, BCE_HC_STATISTICS_ADDR_L,
3726                BCE_ADDR_LO(sc->stats_block_paddr));
3727         REG_WR(sc, BCE_HC_STATISTICS_ADDR_H,
3728                BCE_ADDR_HI(sc->stats_block_paddr));
3729
3730         /* Program various host coalescing parameters. */
3731         REG_WR(sc, BCE_HC_TX_QUICK_CONS_TRIP,
3732                (sc->bce_tx_quick_cons_trip_int << 16) |
3733                sc->bce_tx_quick_cons_trip);
3734         REG_WR(sc, BCE_HC_RX_QUICK_CONS_TRIP,
3735                (sc->bce_rx_quick_cons_trip_int << 16) |
3736                sc->bce_rx_quick_cons_trip);
3737         REG_WR(sc, BCE_HC_COMP_PROD_TRIP,
3738                (sc->bce_comp_prod_trip_int << 16) | sc->bce_comp_prod_trip);
3739         REG_WR(sc, BCE_HC_TX_TICKS,
3740                (sc->bce_tx_ticks_int << 16) | sc->bce_tx_ticks);
3741         REG_WR(sc, BCE_HC_RX_TICKS,
3742                (sc->bce_rx_ticks_int << 16) | sc->bce_rx_ticks);
3743         REG_WR(sc, BCE_HC_COM_TICKS,
3744                (sc->bce_com_ticks_int << 16) | sc->bce_com_ticks);
3745         REG_WR(sc, BCE_HC_CMD_TICKS,
3746                (sc->bce_cmd_ticks_int << 16) | sc->bce_cmd_ticks);
3747         REG_WR(sc, BCE_HC_STATS_TICKS, (sc->bce_stats_ticks & 0xffff00));
3748         REG_WR(sc, BCE_HC_STAT_COLLECT_TICKS, 0xbb8);   /* 3ms */
3749
3750         val = BCE_HC_CONFIG_TX_TMR_MODE | BCE_HC_CONFIG_COLLECT_STATS;
3751         if (sc->bce_flags & BCE_ONESHOT_MSI_FLAG) {
3752                 if (bootverbose)
3753                         if_printf(&sc->arpcom.ac_if, "oneshot MSI\n");
3754                 val |= BCE_HC_CONFIG_ONE_SHOT | BCE_HC_CONFIG_USE_INT_PARAM;
3755         }
3756         REG_WR(sc, BCE_HC_CONFIG, val);
3757
3758         /* Clear the internal statistics counters. */
3759         REG_WR(sc, BCE_HC_COMMAND, BCE_HC_COMMAND_CLR_STAT_NOW);
3760
3761         /* Verify that bootcode is running. */
3762         reg = bce_shmem_rd(sc, BCE_DEV_INFO_SIGNATURE);
3763
3764         DBRUNIF(DB_RANDOMTRUE(bce_debug_bootcode_running_failure),
3765                 if_printf(&sc->arpcom.ac_if,
3766                           "%s(%d): Simulating bootcode failure.\n",
3767                           __FILE__, __LINE__);
3768                 reg = 0);
3769
3770         if ((reg & BCE_DEV_INFO_SIGNATURE_MAGIC_MASK) !=
3771             BCE_DEV_INFO_SIGNATURE_MAGIC) {
3772                 if_printf(&sc->arpcom.ac_if,
3773                           "Bootcode not running! Found: 0x%08X, "
3774                           "Expected: 08%08X\n",
3775                           reg & BCE_DEV_INFO_SIGNATURE_MAGIC_MASK,
3776                           BCE_DEV_INFO_SIGNATURE_MAGIC);
3777                 return ENODEV;
3778         }
3779
3780         /* Enable DMA */
3781         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3782             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3783                 val = REG_RD(sc, BCE_MISC_NEW_CORE_CTL);
3784                 val |= BCE_MISC_NEW_CORE_CTL_DMA_ENABLE;
3785                 REG_WR(sc, BCE_MISC_NEW_CORE_CTL, val);
3786         }
3787
3788         /* Allow bootcode to apply any additional fixes before enabling MAC. */
3789         rc = bce_fw_sync(sc, BCE_DRV_MSG_DATA_WAIT2 | BCE_DRV_MSG_CODE_RESET);
3790
3791         /* Enable link state change interrupt generation. */
3792         REG_WR(sc, BCE_HC_ATTN_BITS_ENABLE, STATUS_ATTN_BITS_LINK_STATE);
3793
3794         /* Enable the RXP. */
3795         bce_start_rxp_cpu(sc);
3796
3797         /* Disable management frames (NC-SI) from flowing to the MCP. */
3798         if (sc->bce_flags & BCE_MFW_ENABLE_FLAG) {
3799                 val = REG_RD(sc, BCE_RPM_MGMT_PKT_CTRL) &
3800                     ~BCE_RPM_MGMT_PKT_CTRL_MGMT_EN;
3801                 REG_WR(sc, BCE_RPM_MGMT_PKT_CTRL, val);
3802         }
3803
3804         /* Enable all remaining blocks in the MAC. */
3805         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3806             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3807                 REG_WR(sc, BCE_MISC_ENABLE_SET_BITS,
3808                     BCE_MISC_ENABLE_DEFAULT_XI);
3809         } else {
3810                 REG_WR(sc, BCE_MISC_ENABLE_SET_BITS, BCE_MISC_ENABLE_DEFAULT);
3811         }
3812         REG_RD(sc, BCE_MISC_ENABLE_SET_BITS);
3813         DELAY(20);
3814
3815         /* Save the current host coalescing block settings. */
3816         sc->hc_command = REG_RD(sc, BCE_HC_COMMAND);
3817
3818         return 0;
3819 }
3820
3821
3822 /****************************************************************************/
3823 /* Encapsulate an mbuf cluster into the rx_bd chain.                        */
3824 /*                                                                          */
3825 /* The NetXtreme II can support Jumbo frames by using multiple rx_bd's.     */
3826 /* This routine will map an mbuf cluster into 1 or more rx_bd's as          */
3827 /* necessary.                                                               */
3828 /*                                                                          */
3829 /* Returns:                                                                 */
3830 /*   0 for success, positive value for failure.                             */
3831 /****************************************************************************/
3832 static int
3833 bce_newbuf_std(struct bce_softc *sc, uint16_t *prod, uint16_t *chain_prod,
3834                uint32_t *prod_bseq, int init)
3835 {
3836         bus_dmamap_t map;
3837         bus_dma_segment_t seg;
3838         struct mbuf *m_new;
3839         int error, nseg;
3840 #ifdef BCE_DEBUG
3841         uint16_t debug_chain_prod = *chain_prod;
3842 #endif
3843
3844         /* Make sure the inputs are valid. */
3845         DBRUNIF((*chain_prod > MAX_RX_BD(sc)),
3846                 if_printf(&sc->arpcom.ac_if, "%s(%d): "
3847                           "RX producer out of range: 0x%04X > 0x%04X\n",
3848                           __FILE__, __LINE__,
3849                           *chain_prod, (uint16_t)MAX_RX_BD(sc)));
3850
3851         DBPRINT(sc, BCE_VERBOSE_RECV, "%s(enter): prod = 0x%04X, chain_prod = 0x%04X, "
3852                 "prod_bseq = 0x%08X\n", __func__, *prod, *chain_prod, *prod_bseq);
3853
3854         DBRUNIF(DB_RANDOMTRUE(bce_debug_mbuf_allocation_failure),
3855                 if_printf(&sc->arpcom.ac_if, "%s(%d): "
3856                           "Simulating mbuf allocation failure.\n",
3857                           __FILE__, __LINE__);
3858                 sc->mbuf_alloc_failed++;
3859                 return ENOBUFS);
3860
3861         /* This is a new mbuf allocation. */
3862         m_new = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR);
3863         if (m_new == NULL)
3864                 return ENOBUFS;
3865         DBRUNIF(1, sc->rx_mbuf_alloc++);
3866
3867         m_new->m_len = m_new->m_pkthdr.len = MCLBYTES;
3868
3869         /* Map the mbuf cluster into device memory. */
3870         error = bus_dmamap_load_mbuf_segment(sc->rx_mbuf_tag,
3871                         sc->rx_mbuf_tmpmap, m_new, &seg, 1, &nseg,
3872                         BUS_DMA_NOWAIT);
3873         if (error) {
3874                 m_freem(m_new);
3875                 if (init) {
3876                         if_printf(&sc->arpcom.ac_if,
3877                                   "Error mapping mbuf into RX chain!\n");
3878                 }
3879                 DBRUNIF(1, sc->rx_mbuf_alloc--);
3880                 return error;
3881         }
3882
3883         if (sc->rx_mbuf_ptr[*chain_prod] != NULL) {
3884                 bus_dmamap_unload(sc->rx_mbuf_tag,
3885                                   sc->rx_mbuf_map[*chain_prod]);
3886         }
3887
3888         map = sc->rx_mbuf_map[*chain_prod];
3889         sc->rx_mbuf_map[*chain_prod] = sc->rx_mbuf_tmpmap;
3890         sc->rx_mbuf_tmpmap = map;
3891
3892         /* Watch for overflow. */
3893         DBRUNIF((sc->free_rx_bd > USABLE_RX_BD(sc)),
3894                 if_printf(&sc->arpcom.ac_if, "%s(%d): "
3895                           "Too many free rx_bd (0x%04X > 0x%04X)!\n",
3896                           __FILE__, __LINE__, sc->free_rx_bd,
3897                           (uint16_t)USABLE_RX_BD(sc)));
3898
3899         /* Update some debug statistic counters */
3900         DBRUNIF((sc->free_rx_bd < sc->rx_low_watermark),
3901                 sc->rx_low_watermark = sc->free_rx_bd);
3902         DBRUNIF((sc->free_rx_bd == 0), sc->rx_empty_count++);
3903
3904         /* Save the mbuf and update our counter. */
3905         sc->rx_mbuf_ptr[*chain_prod] = m_new;
3906         sc->rx_mbuf_paddr[*chain_prod] = seg.ds_addr;
3907         sc->free_rx_bd--;
3908
3909         bce_setup_rxdesc_std(sc, *chain_prod, prod_bseq);
3910
3911         DBRUN(BCE_VERBOSE_RECV,
3912               bce_dump_rx_mbuf_chain(sc, debug_chain_prod, 1));
3913
3914         DBPRINT(sc, BCE_VERBOSE_RECV, "%s(exit): prod = 0x%04X, chain_prod = 0x%04X, "
3915                 "prod_bseq = 0x%08X\n", __func__, *prod, *chain_prod, *prod_bseq);
3916
3917         return 0;
3918 }
3919
3920
3921 static void
3922 bce_setup_rxdesc_std(struct bce_softc *sc, uint16_t chain_prod, uint32_t *prod_bseq)
3923 {
3924         struct rx_bd *rxbd;
3925         bus_addr_t paddr;
3926         int len;
3927
3928         paddr = sc->rx_mbuf_paddr[chain_prod];
3929         len = sc->rx_mbuf_ptr[chain_prod]->m_len;
3930
3931         /* Setup the rx_bd for the first segment. */
3932         rxbd = &sc->rx_bd_chain[RX_PAGE(chain_prod)][RX_IDX(chain_prod)];
3933
3934         rxbd->rx_bd_haddr_lo = htole32(BCE_ADDR_LO(paddr));
3935         rxbd->rx_bd_haddr_hi = htole32(BCE_ADDR_HI(paddr));
3936         rxbd->rx_bd_len = htole32(len);
3937         rxbd->rx_bd_flags = htole32(RX_BD_FLAGS_START);
3938         *prod_bseq += len;
3939
3940         rxbd->rx_bd_flags |= htole32(RX_BD_FLAGS_END);
3941 }
3942
3943
3944 /****************************************************************************/
3945 /* Initialize the TX context memory.                                        */
3946 /*                                                                          */
3947 /* Returns:                                                                 */
3948 /*   Nothing                                                                */
3949 /****************************************************************************/
3950 static void
3951 bce_init_tx_context(struct bce_softc *sc)
3952 {
3953         uint32_t val;
3954
3955         /* Initialize the context ID for an L2 TX chain. */
3956         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
3957             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
3958                 /* Set the CID type to support an L2 connection. */
3959                 val = BCE_L2CTX_TX_TYPE_TYPE_L2 | BCE_L2CTX_TX_TYPE_SIZE_L2;
3960                 CTX_WR(sc, GET_CID_ADDR(TX_CID), BCE_L2CTX_TX_TYPE_XI, val);
3961                 val = BCE_L2CTX_TX_CMD_TYPE_TYPE_L2 | (8 << 16);
3962                 CTX_WR(sc, GET_CID_ADDR(TX_CID), BCE_L2CTX_TX_CMD_TYPE_XI, val);
3963
3964                 /* Point the hardware to the first page in the chain. */
3965                 val = BCE_ADDR_HI(sc->tx_bd_chain_paddr[0]);
3966                 CTX_WR(sc, GET_CID_ADDR(TX_CID),
3967                     BCE_L2CTX_TX_TBDR_BHADDR_HI_XI, val);
3968                 val = BCE_ADDR_LO(sc->tx_bd_chain_paddr[0]);
3969                 CTX_WR(sc, GET_CID_ADDR(TX_CID),
3970                     BCE_L2CTX_TX_TBDR_BHADDR_LO_XI, val);
3971         } else {
3972                 /* Set the CID type to support an L2 connection. */
3973                 val = BCE_L2CTX_TX_TYPE_TYPE_L2 | BCE_L2CTX_TX_TYPE_SIZE_L2;
3974                 CTX_WR(sc, GET_CID_ADDR(TX_CID), BCE_L2CTX_TX_TYPE, val);
3975                 val = BCE_L2CTX_TX_CMD_TYPE_TYPE_L2 | (8 << 16);
3976                 CTX_WR(sc, GET_CID_ADDR(TX_CID), BCE_L2CTX_TX_CMD_TYPE, val);
3977
3978                 /* Point the hardware to the first page in the chain. */
3979                 val = BCE_ADDR_HI(sc->tx_bd_chain_paddr[0]);
3980                 CTX_WR(sc, GET_CID_ADDR(TX_CID),
3981                     BCE_L2CTX_TX_TBDR_BHADDR_HI, val);
3982                 val = BCE_ADDR_LO(sc->tx_bd_chain_paddr[0]);
3983                 CTX_WR(sc, GET_CID_ADDR(TX_CID),
3984                     BCE_L2CTX_TX_TBDR_BHADDR_LO, val);
3985         }
3986 }
3987
3988
3989 /****************************************************************************/
3990 /* Allocate memory and initialize the TX data structures.                   */
3991 /*                                                                          */
3992 /* Returns:                                                                 */
3993 /*   0 for success, positive value for failure.                             */
3994 /****************************************************************************/
3995 static int
3996 bce_init_tx_chain(struct bce_softc *sc)
3997 {
3998         struct tx_bd *txbd;
3999         int i, rc = 0;
4000
4001         DBPRINT(sc, BCE_VERBOSE_RESET, "Entering %s()\n", __func__);
4002
4003         /* Set the initial TX producer/consumer indices. */
4004         sc->tx_prod = 0;
4005         sc->tx_cons = 0;
4006         sc->tx_prod_bseq   = 0;
4007         sc->used_tx_bd = 0;
4008         sc->max_tx_bd = USABLE_TX_BD(sc);
4009         DBRUNIF(1, sc->tx_hi_watermark = USABLE_TX_BD(sc));
4010         DBRUNIF(1, sc->tx_full_count = 0);
4011
4012         /*
4013          * The NetXtreme II supports a linked-list structre called
4014          * a Buffer Descriptor Chain (or BD chain).  A BD chain
4015          * consists of a series of 1 or more chain pages, each of which
4016          * consists of a fixed number of BD entries.
4017          * The last BD entry on each page is a pointer to the next page
4018          * in the chain, and the last pointer in the BD chain
4019          * points back to the beginning of the chain.
4020          */
4021
4022         /* Set the TX next pointer chain entries. */
4023         for (i = 0; i < sc->tx_pages; i++) {
4024                 int j;
4025
4026                 txbd = &sc->tx_bd_chain[i][USABLE_TX_BD_PER_PAGE];
4027
4028                 /* Check if we've reached the last page. */
4029                 if (i == (sc->tx_pages - 1))
4030                         j = 0;
4031                 else
4032                         j = i + 1;
4033
4034                 txbd->tx_bd_haddr_hi =
4035                         htole32(BCE_ADDR_HI(sc->tx_bd_chain_paddr[j]));
4036                 txbd->tx_bd_haddr_lo =
4037                         htole32(BCE_ADDR_LO(sc->tx_bd_chain_paddr[j]));
4038         }
4039         bce_init_tx_context(sc);
4040
4041         return(rc);
4042 }
4043
4044
4045 /****************************************************************************/
4046 /* Free memory and clear the TX data structures.                            */
4047 /*                                                                          */
4048 /* Returns:                                                                 */
4049 /*   Nothing.                                                               */
4050 /****************************************************************************/
4051 static void
4052 bce_free_tx_chain(struct bce_softc *sc)
4053 {
4054         int i;
4055
4056         DBPRINT(sc, BCE_VERBOSE_RESET, "Entering %s()\n", __func__);
4057
4058         /* Unmap, unload, and free any mbufs still in the TX mbuf chain. */
4059         for (i = 0; i < TOTAL_TX_BD(sc); i++) {
4060                 if (sc->tx_mbuf_ptr[i] != NULL) {
4061                         bus_dmamap_unload(sc->tx_mbuf_tag, sc->tx_mbuf_map[i]);
4062                         m_freem(sc->tx_mbuf_ptr[i]);
4063                         sc->tx_mbuf_ptr[i] = NULL;
4064                         DBRUNIF(1, sc->tx_mbuf_alloc--);
4065                 }
4066         }
4067
4068         /* Clear each TX chain page. */
4069         for (i = 0; i < sc->tx_pages; i++)
4070                 bzero(sc->tx_bd_chain[i], BCE_TX_CHAIN_PAGE_SZ);
4071         sc->used_tx_bd = 0;
4072
4073         /* Check if we lost any mbufs in the process. */
4074         DBRUNIF((sc->tx_mbuf_alloc),
4075                 if_printf(&sc->arpcom.ac_if,
4076                           "%s(%d): Memory leak! "
4077                           "Lost %d mbufs from tx chain!\n",
4078                           __FILE__, __LINE__, sc->tx_mbuf_alloc));
4079
4080         DBPRINT(sc, BCE_VERBOSE_RESET, "Exiting %s()\n", __func__);
4081 }
4082
4083
4084 /****************************************************************************/
4085 /* Initialize the RX context memory.                                        */
4086 /*                                                                          */
4087 /* Returns:                                                                 */
4088 /*   Nothing                                                                */
4089 /****************************************************************************/
4090 static void
4091 bce_init_rx_context(struct bce_softc *sc)
4092 {
4093         uint32_t val;
4094
4095         /* Initialize the context ID for an L2 RX chain. */
4096         val = BCE_L2CTX_RX_CTX_TYPE_CTX_BD_CHN_TYPE_VALUE |
4097             BCE_L2CTX_RX_CTX_TYPE_SIZE_L2 | (0x02 << 8);
4098
4099         /*
4100          * Set the level for generating pause frames
4101          * when the number of available rx_bd's gets
4102          * too low (the low watermark) and the level
4103          * when pause frames can be stopped (the high
4104          * watermark).
4105          */
4106         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
4107             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
4108                 uint32_t lo_water, hi_water;
4109
4110                 lo_water = BCE_L2CTX_RX_LO_WATER_MARK_DEFAULT;
4111                 hi_water = USABLE_RX_BD(sc) / 4;
4112
4113                 lo_water /= BCE_L2CTX_RX_LO_WATER_MARK_SCALE;
4114                 hi_water /= BCE_L2CTX_RX_HI_WATER_MARK_SCALE;
4115
4116                 if (hi_water > 0xf)
4117                         hi_water = 0xf;
4118                 else if (hi_water == 0)
4119                         lo_water = 0;
4120                 val |= lo_water |
4121                     (hi_water << BCE_L2CTX_RX_HI_WATER_MARK_SHIFT);
4122         }
4123
4124         CTX_WR(sc, GET_CID_ADDR(RX_CID), BCE_L2CTX_RX_CTX_TYPE, val);
4125
4126         /* Setup the MQ BIN mapping for l2_ctx_host_bseq. */
4127         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
4128             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
4129                 val = REG_RD(sc, BCE_MQ_MAP_L2_5);
4130                 REG_WR(sc, BCE_MQ_MAP_L2_5, val | BCE_MQ_MAP_L2_5_ARM);
4131         }
4132
4133         /* Point the hardware to the first page in the chain. */
4134         val = BCE_ADDR_HI(sc->rx_bd_chain_paddr[0]);
4135         CTX_WR(sc, GET_CID_ADDR(RX_CID), BCE_L2CTX_RX_NX_BDHADDR_HI, val);
4136         val = BCE_ADDR_LO(sc->rx_bd_chain_paddr[0]);
4137         CTX_WR(sc, GET_CID_ADDR(RX_CID), BCE_L2CTX_RX_NX_BDHADDR_LO, val);
4138 }
4139
4140
4141 /****************************************************************************/
4142 /* Allocate memory and initialize the RX data structures.                   */
4143 /*                                                                          */
4144 /* Returns:                                                                 */
4145 /*   0 for success, positive value for failure.                             */
4146 /****************************************************************************/
4147 static int
4148 bce_init_rx_chain(struct bce_softc *sc)
4149 {
4150         struct rx_bd *rxbd;
4151         int i, rc = 0;
4152         uint16_t prod, chain_prod;
4153         uint32_t prod_bseq;
4154
4155         DBPRINT(sc, BCE_VERBOSE_RESET, "Entering %s()\n", __func__);
4156
4157         /* Initialize the RX producer and consumer indices. */
4158         sc->rx_prod = 0;
4159         sc->rx_cons = 0;
4160         sc->rx_prod_bseq = 0;
4161         sc->free_rx_bd = USABLE_RX_BD(sc);
4162         sc->max_rx_bd = USABLE_RX_BD(sc);
4163         DBRUNIF(1, sc->rx_low_watermark = USABLE_RX_BD(sc));
4164         DBRUNIF(1, sc->rx_empty_count = 0);
4165
4166         /* Initialize the RX next pointer chain entries. */
4167         for (i = 0; i < sc->rx_pages; i++) {
4168                 int j;
4169
4170                 rxbd = &sc->rx_bd_chain[i][USABLE_RX_BD_PER_PAGE];
4171
4172                 /* Check if we've reached the last page. */
4173                 if (i == (sc->rx_pages - 1))
4174                         j = 0;
4175                 else
4176                         j = i + 1;
4177
4178                 /* Setup the chain page pointers. */
4179                 rxbd->rx_bd_haddr_hi =
4180                         htole32(BCE_ADDR_HI(sc->rx_bd_chain_paddr[j]));
4181                 rxbd->rx_bd_haddr_lo =
4182                         htole32(BCE_ADDR_LO(sc->rx_bd_chain_paddr[j]));
4183         }
4184
4185         /* Allocate mbuf clusters for the rx_bd chain. */
4186         prod = prod_bseq = 0;
4187         while (prod < TOTAL_RX_BD(sc)) {
4188                 chain_prod = RX_CHAIN_IDX(sc, prod);
4189                 if (bce_newbuf_std(sc, &prod, &chain_prod, &prod_bseq, 1)) {
4190                         if_printf(&sc->arpcom.ac_if,
4191                                   "Error filling RX chain: rx_bd[0x%04X]!\n",
4192                                   chain_prod);
4193                         rc = ENOBUFS;
4194                         break;
4195                 }
4196                 prod = NEXT_RX_BD(prod);
4197         }
4198
4199         /* Save the RX chain producer index. */
4200         sc->rx_prod = prod;
4201         sc->rx_prod_bseq = prod_bseq;
4202
4203         /* Tell the chip about the waiting rx_bd's. */
4204         REG_WR16(sc, MB_GET_CID_ADDR(RX_CID) + BCE_L2MQ_RX_HOST_BDIDX,
4205             sc->rx_prod);
4206         REG_WR(sc, MB_GET_CID_ADDR(RX_CID) + BCE_L2MQ_RX_HOST_BSEQ,
4207             sc->rx_prod_bseq);
4208
4209         bce_init_rx_context(sc);
4210
4211         return(rc);
4212 }
4213
4214
4215 /****************************************************************************/
4216 /* Free memory and clear the RX data structures.                            */
4217 /*                                                                          */
4218 /* Returns:                                                                 */
4219 /*   Nothing.                                                               */
4220 /****************************************************************************/
4221 static void
4222 bce_free_rx_chain(struct bce_softc *sc)
4223 {
4224         int i;
4225
4226         DBPRINT(sc, BCE_VERBOSE_RESET, "Entering %s()\n", __func__);
4227
4228         /* Free any mbufs still in the RX mbuf chain. */
4229         for (i = 0; i < TOTAL_RX_BD(sc); i++) {
4230                 if (sc->rx_mbuf_ptr[i] != NULL) {
4231                         bus_dmamap_unload(sc->rx_mbuf_tag, sc->rx_mbuf_map[i]);
4232                         m_freem(sc->rx_mbuf_ptr[i]);
4233                         sc->rx_mbuf_ptr[i] = NULL;
4234                         DBRUNIF(1, sc->rx_mbuf_alloc--);
4235                 }
4236         }
4237
4238         /* Clear each RX chain page. */
4239         for (i = 0; i < sc->rx_pages; i++)
4240                 bzero(sc->rx_bd_chain[i], BCE_RX_CHAIN_PAGE_SZ);
4241
4242         /* Check if we lost any mbufs in the process. */
4243         DBRUNIF((sc->rx_mbuf_alloc),
4244                 if_printf(&sc->arpcom.ac_if,
4245                           "%s(%d): Memory leak! "
4246                           "Lost %d mbufs from rx chain!\n",
4247                           __FILE__, __LINE__, sc->rx_mbuf_alloc));
4248
4249         DBPRINT(sc, BCE_VERBOSE_RESET, "Exiting %s()\n", __func__);
4250 }
4251
4252
4253 /****************************************************************************/
4254 /* Set media options.                                                       */
4255 /*                                                                          */
4256 /* Returns:                                                                 */
4257 /*   0 for success, positive value for failure.                             */
4258 /****************************************************************************/
4259 static int
4260 bce_ifmedia_upd(struct ifnet *ifp)
4261 {
4262         struct bce_softc *sc = ifp->if_softc;
4263         struct mii_data *mii = device_get_softc(sc->bce_miibus);
4264         int error = 0;
4265
4266         /*
4267          * 'mii' will be NULL, when this function is called on following
4268          * code path: bce_attach() -> bce_mgmt_init()
4269          */
4270         if (mii != NULL) {
4271                 /* Make sure the MII bus has been enumerated. */
4272                 sc->bce_link = 0;
4273                 if (mii->mii_instance) {
4274                         struct mii_softc *miisc;
4275
4276                         LIST_FOREACH(miisc, &mii->mii_phys, mii_list)
4277                                 mii_phy_reset(miisc);
4278                 }
4279                 error = mii_mediachg(mii);
4280         }
4281         return error;
4282 }
4283
4284
4285 /****************************************************************************/
4286 /* Reports current media status.                                            */
4287 /*                                                                          */
4288 /* Returns:                                                                 */
4289 /*   Nothing.                                                               */
4290 /****************************************************************************/
4291 static void
4292 bce_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
4293 {
4294         struct bce_softc *sc = ifp->if_softc;
4295         struct mii_data *mii = device_get_softc(sc->bce_miibus);
4296
4297         mii_pollstat(mii);
4298         ifmr->ifm_active = mii->mii_media_active;
4299         ifmr->ifm_status = mii->mii_media_status;
4300 }
4301
4302
4303 /****************************************************************************/
4304 /* Handles PHY generated interrupt events.                                  */
4305 /*                                                                          */
4306 /* Returns:                                                                 */
4307 /*   Nothing.                                                               */
4308 /****************************************************************************/
4309 static void
4310 bce_phy_intr(struct bce_softc *sc)
4311 {
4312         uint32_t new_link_state, old_link_state;
4313         struct ifnet *ifp = &sc->arpcom.ac_if;
4314
4315         ASSERT_SERIALIZED(ifp->if_serializer);
4316
4317         new_link_state = sc->status_block->status_attn_bits &
4318                          STATUS_ATTN_BITS_LINK_STATE;
4319         old_link_state = sc->status_block->status_attn_bits_ack &
4320                          STATUS_ATTN_BITS_LINK_STATE;
4321
4322         /* Handle any changes if the link state has changed. */
4323         if (new_link_state != old_link_state) { /* XXX redundant? */
4324                 DBRUN(BCE_VERBOSE_INTR, bce_dump_status_block(sc));
4325
4326                 /* Update the status_attn_bits_ack field in the status block. */
4327                 if (new_link_state) {
4328                         REG_WR(sc, BCE_PCICFG_STATUS_BIT_SET_CMD,
4329                                STATUS_ATTN_BITS_LINK_STATE);
4330                         if (bootverbose)
4331                                 if_printf(ifp, "Link is now UP.\n");
4332                 } else {
4333                         REG_WR(sc, BCE_PCICFG_STATUS_BIT_CLEAR_CMD,
4334                                STATUS_ATTN_BITS_LINK_STATE);
4335                         if (bootverbose)
4336                                 if_printf(ifp, "Link is now DOWN.\n");
4337                 }
4338
4339                 /*
4340                  * Assume link is down and allow tick routine to
4341                  * update the state based on the actual media state.
4342                  */
4343                 sc->bce_link = 0;
4344                 callout_stop(&sc->bce_tick_callout);
4345                 bce_tick_serialized(sc);
4346         }
4347
4348         /* Acknowledge the link change interrupt. */
4349         REG_WR(sc, BCE_EMAC_STATUS, BCE_EMAC_STATUS_LINK_CHANGE);
4350 }
4351
4352
4353 /****************************************************************************/
4354 /* Reads the receive consumer value from the status block (skipping over    */
4355 /* chain page pointer if necessary).                                        */
4356 /*                                                                          */
4357 /* Returns:                                                                 */
4358 /*   hw_cons                                                                */
4359 /****************************************************************************/
4360 static __inline uint16_t
4361 bce_get_hw_rx_cons(struct bce_softc *sc)
4362 {
4363         uint16_t hw_cons = sc->status_block->status_rx_quick_consumer_index0;
4364
4365         if ((hw_cons & USABLE_RX_BD_PER_PAGE) == USABLE_RX_BD_PER_PAGE)
4366                 hw_cons++;
4367         return hw_cons;
4368 }
4369
4370
4371 /****************************************************************************/
4372 /* Handles received frame interrupt events.                                 */
4373 /*                                                                          */
4374 /* Returns:                                                                 */
4375 /*   Nothing.                                                               */
4376 /****************************************************************************/
4377 static void
4378 bce_rx_intr(struct bce_softc *sc, int count, uint16_t hw_cons)
4379 {
4380         struct ifnet *ifp = &sc->arpcom.ac_if;
4381         uint16_t sw_cons, sw_chain_cons, sw_prod, sw_chain_prod;
4382         uint32_t sw_prod_bseq;
4383
4384         ASSERT_SERIALIZED(ifp->if_serializer);
4385
4386         /* Get working copies of the driver's view of the RX indices. */
4387         sw_cons = sc->rx_cons;
4388         sw_prod = sc->rx_prod;
4389         sw_prod_bseq = sc->rx_prod_bseq;
4390
4391         /* Scan through the receive chain as long as there is work to do. */
4392         while (sw_cons != hw_cons) {
4393                 struct mbuf *m = NULL;
4394                 struct l2_fhdr *l2fhdr = NULL;
4395                 struct rx_bd *rxbd;
4396                 unsigned int len;
4397                 uint32_t status = 0;
4398
4399 #ifdef DEVICE_POLLING
4400                 if (count >= 0 && count-- == 0)
4401                         break;
4402 #endif
4403
4404                 /*
4405                  * Convert the producer/consumer indices
4406                  * to an actual rx_bd index.
4407                  */
4408                 sw_chain_cons = RX_CHAIN_IDX(sc, sw_cons);
4409                 sw_chain_prod = RX_CHAIN_IDX(sc, sw_prod);
4410
4411                 /* Get the used rx_bd. */
4412                 rxbd = &sc->rx_bd_chain[RX_PAGE(sw_chain_cons)]
4413                                        [RX_IDX(sw_chain_cons)];
4414                 sc->free_rx_bd++;
4415
4416                 /* The mbuf is stored with the last rx_bd entry of a packet. */
4417                 if (sc->rx_mbuf_ptr[sw_chain_cons] != NULL) {
4418                         if (sw_chain_cons != sw_chain_prod) {
4419                                 if_printf(ifp, "RX cons(%d) != prod(%d), "
4420                                           "drop!\n", sw_chain_cons,
4421                                           sw_chain_prod);
4422                                 ifp->if_ierrors++;
4423
4424                                 bce_setup_rxdesc_std(sc, sw_chain_cons,
4425                                                      &sw_prod_bseq);
4426                                 m = NULL;
4427                                 goto bce_rx_int_next_rx;
4428                         }
4429
4430                         /* Unmap the mbuf from DMA space. */
4431                         bus_dmamap_sync(sc->rx_mbuf_tag,
4432                                         sc->rx_mbuf_map[sw_chain_cons],
4433                                         BUS_DMASYNC_POSTREAD);
4434
4435                         /* Save the mbuf from the driver's chain. */
4436                         m = sc->rx_mbuf_ptr[sw_chain_cons];
4437
4438                         /*
4439                          * Frames received on the NetXteme II are prepended
4440                          * with an l2_fhdr structure which provides status
4441                          * information about the received frame (including
4442                          * VLAN tags and checksum info).  The frames are also
4443                          * automatically adjusted to align the IP header
4444                          * (i.e. two null bytes are inserted before the
4445                          * Ethernet header).  As a result the data DMA'd by
4446                          * the controller into the mbuf is as follows:
4447                          *
4448                          * +---------+-----+---------------------+-----+
4449                          * | l2_fhdr | pad | packet data         | FCS |
4450                          * +---------+-----+---------------------+-----+
4451                          *
4452                          * The l2_fhdr needs to be checked and skipped and the
4453                          * FCS needs to be stripped before sending the packet
4454                          * up the stack.
4455                          */
4456                         l2fhdr = mtod(m, struct l2_fhdr *);
4457
4458                         len = l2fhdr->l2_fhdr_pkt_len;
4459                         status = l2fhdr->l2_fhdr_status;
4460
4461                         len -= ETHER_CRC_LEN;
4462
4463                         /* Check the received frame for errors. */
4464                         if (status & (L2_FHDR_ERRORS_BAD_CRC |
4465                                       L2_FHDR_ERRORS_PHY_DECODE |
4466                                       L2_FHDR_ERRORS_ALIGNMENT |
4467                                       L2_FHDR_ERRORS_TOO_SHORT |
4468                                       L2_FHDR_ERRORS_GIANT_FRAME)) {
4469                                 ifp->if_ierrors++;
4470
4471                                 /* Reuse the mbuf for a new frame. */
4472                                 bce_setup_rxdesc_std(sc, sw_chain_prod,
4473                                                      &sw_prod_bseq);
4474                                 m = NULL;
4475                                 goto bce_rx_int_next_rx;
4476                         }
4477
4478                         /*
4479                          * Get a new mbuf for the rx_bd.   If no new
4480                          * mbufs are available then reuse the current mbuf,
4481                          * log an ierror on the interface, and generate
4482                          * an error in the system log.
4483                          */
4484                         if (bce_newbuf_std(sc, &sw_prod, &sw_chain_prod,
4485                                            &sw_prod_bseq, 0)) {
4486                                 ifp->if_ierrors++;
4487
4488                                 /* Try and reuse the exisitng mbuf. */
4489                                 bce_setup_rxdesc_std(sc, sw_chain_prod,
4490                                                      &sw_prod_bseq);
4491                                 m = NULL;
4492                                 goto bce_rx_int_next_rx;
4493                         }
4494
4495                         /*
4496                          * Skip over the l2_fhdr when passing
4497                          * the data up the stack.
4498                          */
4499                         m_adj(m, sizeof(struct l2_fhdr) + ETHER_ALIGN);
4500
4501                         m->m_pkthdr.len = m->m_len = len;
4502                         m->m_pkthdr.rcvif = ifp;
4503
4504                         /* Validate the checksum if offload enabled. */
4505                         if (ifp->if_capenable & IFCAP_RXCSUM) {
4506                                 /* Check for an IP datagram. */
4507                                 if (status & L2_FHDR_STATUS_IP_DATAGRAM) {
4508                                         m->m_pkthdr.csum_flags |=
4509                                                 CSUM_IP_CHECKED;
4510
4511                                         /* Check if the IP checksum is valid. */
4512                                         if ((l2fhdr->l2_fhdr_ip_xsum ^
4513                                              0xffff) == 0) {
4514                                                 m->m_pkthdr.csum_flags |=
4515                                                         CSUM_IP_VALID;
4516                                         }
4517                                 }
4518
4519                                 /* Check for a valid TCP/UDP frame. */
4520                                 if (status & (L2_FHDR_STATUS_TCP_SEGMENT |
4521                                               L2_FHDR_STATUS_UDP_DATAGRAM)) {
4522
4523                                         /* Check for a good TCP/UDP checksum. */
4524                                         if ((status &
4525                                              (L2_FHDR_ERRORS_TCP_XSUM |
4526                                               L2_FHDR_ERRORS_UDP_XSUM)) == 0) {
4527                                                 m->m_pkthdr.csum_data =
4528                                                 l2fhdr->l2_fhdr_tcp_udp_xsum;
4529                                                 m->m_pkthdr.csum_flags |=
4530                                                         CSUM_DATA_VALID |
4531                                                         CSUM_PSEUDO_HDR;
4532                                         }
4533                                 }
4534                         }
4535
4536                         ifp->if_ipackets++;
4537 bce_rx_int_next_rx:
4538                         sw_prod = NEXT_RX_BD(sw_prod);
4539                 }
4540
4541                 sw_cons = NEXT_RX_BD(sw_cons);
4542
4543                 /* If we have a packet, pass it up the stack */
4544                 if (m) {
4545                         if (status & L2_FHDR_STATUS_L2_VLAN_TAG) {
4546                                 m->m_flags |= M_VLANTAG;
4547                                 m->m_pkthdr.ether_vlantag =
4548                                         l2fhdr->l2_fhdr_vlan_tag;
4549                         }
4550                         ifp->if_input(ifp, m);
4551                 }
4552         }
4553
4554         sc->rx_cons = sw_cons;
4555         sc->rx_prod = sw_prod;
4556         sc->rx_prod_bseq = sw_prod_bseq;
4557
4558         REG_WR16(sc, MB_GET_CID_ADDR(RX_CID) + BCE_L2MQ_RX_HOST_BDIDX,
4559             sc->rx_prod);
4560         REG_WR(sc, MB_GET_CID_ADDR(RX_CID) + BCE_L2MQ_RX_HOST_BSEQ,
4561             sc->rx_prod_bseq);
4562 }
4563
4564
4565 /****************************************************************************/
4566 /* Reads the transmit consumer value from the status block (skipping over   */
4567 /* chain page pointer if necessary).                                        */
4568 /*                                                                          */
4569 /* Returns:                                                                 */
4570 /*   hw_cons                                                                */
4571 /****************************************************************************/
4572 static __inline uint16_t
4573 bce_get_hw_tx_cons(struct bce_softc *sc)
4574 {
4575         uint16_t hw_cons = sc->status_block->status_tx_quick_consumer_index0;
4576
4577         if ((hw_cons & USABLE_TX_BD_PER_PAGE) == USABLE_TX_BD_PER_PAGE)
4578                 hw_cons++;
4579         return hw_cons;
4580 }
4581
4582
4583 /****************************************************************************/
4584 /* Handles transmit completion interrupt events.                            */
4585 /*                                                                          */
4586 /* Returns:                                                                 */
4587 /*   Nothing.                                                               */
4588 /****************************************************************************/
4589 static void
4590 bce_tx_intr(struct bce_softc *sc, uint16_t hw_tx_cons)
4591 {
4592         struct ifnet *ifp = &sc->arpcom.ac_if;
4593         uint16_t sw_tx_cons, sw_tx_chain_cons;
4594
4595         ASSERT_SERIALIZED(ifp->if_serializer);
4596
4597         /* Get the hardware's view of the TX consumer index. */
4598         sw_tx_cons = sc->tx_cons;
4599
4600         /* Cycle through any completed TX chain page entries. */
4601         while (sw_tx_cons != hw_tx_cons) {
4602                 sw_tx_chain_cons = TX_CHAIN_IDX(sc, sw_tx_cons);
4603
4604                 /*
4605                  * Free the associated mbuf. Remember
4606                  * that only the last tx_bd of a packet
4607                  * has an mbuf pointer and DMA map.
4608                  */
4609                 if (sc->tx_mbuf_ptr[sw_tx_chain_cons] != NULL) {
4610                         /* Unmap the mbuf. */
4611                         bus_dmamap_unload(sc->tx_mbuf_tag,
4612                                           sc->tx_mbuf_map[sw_tx_chain_cons]);
4613
4614                         /* Free the mbuf. */
4615                         m_freem(sc->tx_mbuf_ptr[sw_tx_chain_cons]);
4616                         sc->tx_mbuf_ptr[sw_tx_chain_cons] = NULL;
4617
4618                         ifp->if_opackets++;
4619                 }
4620
4621                 sc->used_tx_bd--;
4622                 sw_tx_cons = NEXT_TX_BD(sw_tx_cons);
4623         }
4624
4625         if (sc->used_tx_bd == 0) {
4626                 /* Clear the TX timeout timer. */
4627                 ifp->if_timer = 0;
4628         }
4629
4630         /* Clear the tx hardware queue full flag. */
4631         if (sc->max_tx_bd - sc->used_tx_bd >= BCE_TX_SPARE_SPACE)
4632                 ifp->if_flags &= ~IFF_OACTIVE;
4633         sc->tx_cons = sw_tx_cons;
4634 }
4635
4636
4637 /****************************************************************************/
4638 /* Disables interrupt generation.                                           */
4639 /*                                                                          */
4640 /* Returns:                                                                 */
4641 /*   Nothing.                                                               */
4642 /****************************************************************************/
4643 static void
4644 bce_disable_intr(struct bce_softc *sc)
4645 {
4646         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD, BCE_PCICFG_INT_ACK_CMD_MASK_INT);
4647         REG_RD(sc, BCE_PCICFG_INT_ACK_CMD);
4648         lwkt_serialize_handler_disable(sc->arpcom.ac_if.if_serializer);
4649 }
4650
4651
4652 /****************************************************************************/
4653 /* Enables interrupt generation.                                            */
4654 /*                                                                          */
4655 /* Returns:                                                                 */
4656 /*   Nothing.                                                               */
4657 /****************************************************************************/
4658 static void
4659 bce_enable_intr(struct bce_softc *sc)
4660 {
4661         lwkt_serialize_handler_enable(sc->arpcom.ac_if.if_serializer);
4662
4663         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
4664                BCE_PCICFG_INT_ACK_CMD_INDEX_VALID |
4665                BCE_PCICFG_INT_ACK_CMD_MASK_INT | sc->last_status_idx);
4666         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
4667                BCE_PCICFG_INT_ACK_CMD_INDEX_VALID | sc->last_status_idx);
4668
4669         REG_WR(sc, BCE_HC_COMMAND, sc->hc_command | BCE_HC_COMMAND_COAL_NOW);
4670 }
4671
4672
4673 /****************************************************************************/
4674 /* Reenables interrupt generation during interrupt handling.                */
4675 /*                                                                          */
4676 /* Returns:                                                                 */
4677 /*   Nothing.                                                               */
4678 /****************************************************************************/
4679 static void
4680 bce_reenable_intr(struct bce_softc *sc)
4681 {
4682         if (sc->bce_irq_type == PCI_INTR_TYPE_LEGACY) {
4683                 REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
4684                        BCE_PCICFG_INT_ACK_CMD_INDEX_VALID |
4685                        BCE_PCICFG_INT_ACK_CMD_MASK_INT | sc->last_status_idx);
4686         }
4687         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
4688                BCE_PCICFG_INT_ACK_CMD_INDEX_VALID | sc->last_status_idx);
4689 }
4690
4691 /****************************************************************************/
4692 /* Handles controller initialization.                                       */
4693 /*                                                                          */
4694 /* Returns:                                                                 */
4695 /*   Nothing.                                                               */
4696 /****************************************************************************/
4697 static void
4698 bce_init(void *xsc)
4699 {
4700         struct bce_softc *sc = xsc;
4701         struct ifnet *ifp = &sc->arpcom.ac_if;
4702         uint32_t ether_mtu;
4703         int error;
4704
4705         ASSERT_SERIALIZED(ifp->if_serializer);
4706
4707         /* Check if the driver is still running and bail out if it is. */
4708         if (ifp->if_flags & IFF_RUNNING)
4709                 return;
4710
4711         bce_stop(sc);
4712
4713         error = bce_reset(sc, BCE_DRV_MSG_CODE_RESET);
4714         if (error) {
4715                 if_printf(ifp, "Controller reset failed!\n");
4716                 goto back;
4717         }
4718
4719         error = bce_chipinit(sc);
4720         if (error) {
4721                 if_printf(ifp, "Controller initialization failed!\n");
4722                 goto back;
4723         }
4724
4725         error = bce_blockinit(sc);
4726         if (error) {
4727                 if_printf(ifp, "Block initialization failed!\n");
4728                 goto back;
4729         }
4730
4731         /* Load our MAC address. */
4732         bcopy(IF_LLADDR(ifp), sc->eaddr, ETHER_ADDR_LEN);
4733         bce_set_mac_addr(sc);
4734
4735         /* Calculate and program the Ethernet MTU size. */
4736         ether_mtu = ETHER_HDR_LEN + EVL_ENCAPLEN + ifp->if_mtu + ETHER_CRC_LEN;
4737
4738         DBPRINT(sc, BCE_INFO, "%s(): setting mtu = %d\n", __func__, ether_mtu);
4739
4740         /*
4741          * Program the mtu, enabling jumbo frame
4742          * support if necessary.  Also set the mbuf
4743          * allocation count for RX frames.
4744          */
4745         if (ether_mtu > ETHER_MAX_LEN + EVL_ENCAPLEN) {
4746 #ifdef notyet
4747                 REG_WR(sc, BCE_EMAC_RX_MTU_SIZE,
4748                        min(ether_mtu, BCE_MAX_JUMBO_ETHER_MTU) |
4749                        BCE_EMAC_RX_MTU_SIZE_JUMBO_ENA);
4750                 sc->mbuf_alloc_size = MJUM9BYTES;
4751 #else
4752                 panic("jumbo buffer is not supported yet");
4753 #endif
4754         } else {
4755                 REG_WR(sc, BCE_EMAC_RX_MTU_SIZE, ether_mtu);
4756                 sc->mbuf_alloc_size = MCLBYTES;
4757         }
4758
4759         /* Calculate the RX Ethernet frame size for rx_bd's. */
4760         sc->max_frame_size = sizeof(struct l2_fhdr) + 2 + ether_mtu + 8;
4761
4762         DBPRINT(sc, BCE_INFO,
4763                 "%s(): mclbytes = %d, mbuf_alloc_size = %d, "
4764                 "max_frame_size = %d\n",
4765                 __func__, (int)MCLBYTES, sc->mbuf_alloc_size,
4766                 sc->max_frame_size);
4767
4768         /* Program appropriate promiscuous/multicast filtering. */
4769         bce_set_rx_mode(sc);
4770
4771         /* Init RX buffer descriptor chain. */
4772         bce_init_rx_chain(sc);  /* XXX return value */
4773
4774         /* Init TX buffer descriptor chain. */
4775         bce_init_tx_chain(sc);  /* XXX return value */
4776
4777 #ifdef DEVICE_POLLING
4778         /* Disable interrupts if we are polling. */
4779         if (ifp->if_flags & IFF_POLLING) {
4780                 bce_disable_intr(sc);
4781
4782                 REG_WR(sc, BCE_HC_RX_QUICK_CONS_TRIP,
4783                        (1 << 16) | sc->bce_rx_quick_cons_trip);
4784                 REG_WR(sc, BCE_HC_TX_QUICK_CONS_TRIP,
4785                        (1 << 16) | sc->bce_tx_quick_cons_trip);
4786         } else
4787 #endif
4788         /* Enable host interrupts. */
4789         bce_enable_intr(sc);
4790
4791         bce_ifmedia_upd(ifp);
4792
4793         ifp->if_flags |= IFF_RUNNING;
4794         ifp->if_flags &= ~IFF_OACTIVE;
4795
4796         callout_reset(&sc->bce_tick_callout, hz, bce_tick, sc);
4797 back:
4798         if (error)
4799                 bce_stop(sc);
4800 }
4801
4802
4803 /****************************************************************************/
4804 /* Initialize the controller just enough so that any management firmware    */
4805 /* running on the device will continue to operate corectly.                 */
4806 /*                                                                          */
4807 /* Returns:                                                                 */
4808 /*   Nothing.                                                               */
4809 /****************************************************************************/
4810 static void
4811 bce_mgmt_init(struct bce_softc *sc)
4812 {
4813         struct ifnet *ifp = &sc->arpcom.ac_if;
4814
4815         /* Bail out if management firmware is not running. */
4816         if (!(sc->bce_flags & BCE_MFW_ENABLE_FLAG))
4817                 return;
4818
4819         /* Enable all critical blocks in the MAC. */
4820         if (BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5709 ||
4821             BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5716) {
4822                 REG_WR(sc, BCE_MISC_ENABLE_SET_BITS,
4823                     BCE_MISC_ENABLE_DEFAULT_XI);
4824         } else {
4825                 REG_WR(sc, BCE_MISC_ENABLE_SET_BITS, BCE_MISC_ENABLE_DEFAULT);
4826         }
4827         REG_RD(sc, BCE_MISC_ENABLE_SET_BITS);
4828         DELAY(20);
4829
4830         bce_ifmedia_upd(ifp);
4831 }
4832
4833
4834 /****************************************************************************/
4835 /* Encapsultes an mbuf cluster into the tx_bd chain structure and makes the */
4836 /* memory visible to the controller.                                        */
4837 /*                                                                          */
4838 /* Returns:                                                                 */
4839 /*   0 for success, positive value for failure.                             */
4840 /****************************************************************************/
4841 static int
4842 bce_encap(struct bce_softc *sc, struct mbuf **m_head)
4843 {
4844         bus_dma_segment_t segs[BCE_MAX_SEGMENTS];
4845         bus_dmamap_t map, tmp_map;
4846         struct mbuf *m0 = *m_head;
4847         struct tx_bd *txbd = NULL;
4848         uint16_t vlan_tag = 0, flags = 0;
4849         uint16_t chain_prod, chain_prod_start, prod;
4850         uint32_t prod_bseq;
4851         int i, error, maxsegs, nsegs;
4852 #ifdef BCE_DEBUG
4853         uint16_t debug_prod;
4854 #endif
4855
4856         /* Transfer any checksum offload flags to the bd. */
4857         if (m0->m_pkthdr.csum_flags) {
4858                 if (m0->m_pkthdr.csum_flags & CSUM_IP)
4859                         flags |= TX_BD_FLAGS_IP_CKSUM;
4860                 if (m0->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP))
4861                         flags |= TX_BD_FLAGS_TCP_UDP_CKSUM;
4862         }
4863
4864         /* Transfer any VLAN tags to the bd. */
4865         if (m0->m_flags & M_VLANTAG) {
4866                 flags |= TX_BD_FLAGS_VLAN_TAG;
4867                 vlan_tag = m0->m_pkthdr.ether_vlantag;
4868         }
4869
4870         prod = sc->tx_prod;
4871         chain_prod_start = chain_prod = TX_CHAIN_IDX(sc, prod);
4872
4873         /* Map the mbuf into DMAable memory. */
4874         map = sc->tx_mbuf_map[chain_prod_start];
4875
4876         maxsegs = sc->max_tx_bd - sc->used_tx_bd;
4877         KASSERT(maxsegs >= BCE_TX_SPARE_SPACE,
4878                 ("not enough segments %d", maxsegs));
4879         if (maxsegs > BCE_MAX_SEGMENTS)
4880                 maxsegs = BCE_MAX_SEGMENTS;
4881
4882         /* Map the mbuf into our DMA address space. */
4883         error = bus_dmamap_load_mbuf_defrag(sc->tx_mbuf_tag, map, m_head,
4884                         segs, maxsegs, &nsegs, BUS_DMA_NOWAIT);
4885         if (error)
4886                 goto back;
4887         bus_dmamap_sync(sc->tx_mbuf_tag, map, BUS_DMASYNC_PREWRITE);
4888
4889         /* Reset m0 */
4890         m0 = *m_head;
4891
4892         /* prod points to an empty tx_bd at this point. */
4893         prod_bseq  = sc->tx_prod_bseq;
4894
4895 #ifdef BCE_DEBUG
4896         debug_prod = chain_prod;
4897 #endif
4898
4899         DBPRINT(sc, BCE_INFO_SEND,
4900                 "%s(): Start: prod = 0x%04X, chain_prod = %04X, "
4901                 "prod_bseq = 0x%08X\n",
4902                 __func__, prod, chain_prod, prod_bseq);
4903
4904         /*
4905          * Cycle through each mbuf segment that makes up
4906          * the outgoing frame, gathering the mapping info
4907          * for that segment and creating a tx_bd to for
4908          * the mbuf.
4909          */
4910         for (i = 0; i < nsegs; i++) {
4911                 chain_prod = TX_CHAIN_IDX(sc, prod);
4912                 txbd= &sc->tx_bd_chain[TX_PAGE(chain_prod)][TX_IDX(chain_prod)];
4913
4914                 txbd->tx_bd_haddr_lo = htole32(BCE_ADDR_LO(segs[i].ds_addr));
4915                 txbd->tx_bd_haddr_hi = htole32(BCE_ADDR_HI(segs[i].ds_addr));
4916                 txbd->tx_bd_mss_nbytes = htole16(segs[i].ds_len);
4917                 txbd->tx_bd_vlan_tag = htole16(vlan_tag);
4918                 txbd->tx_bd_flags = htole16(flags);
4919                 prod_bseq += segs[i].ds_len;
4920                 if (i == 0)
4921                         txbd->tx_bd_flags |= htole16(TX_BD_FLAGS_START);
4922                 prod = NEXT_TX_BD(prod);
4923         }
4924
4925         /* Set the END flag on the last TX buffer descriptor. */
4926         txbd->tx_bd_flags |= htole16(TX_BD_FLAGS_END);
4927
4928         DBRUN(BCE_EXCESSIVE_SEND,
4929               bce_dump_tx_chain(sc, debug_prod, nsegs));
4930
4931         DBPRINT(sc, BCE_INFO_SEND,
4932                 "%s(): End: prod = 0x%04X, chain_prod = %04X, "
4933                 "prod_bseq = 0x%08X\n",
4934                 __func__, prod, chain_prod, prod_bseq);
4935
4936         /*
4937          * Ensure that the mbuf pointer for this transmission
4938          * is placed at the array index of the last
4939          * descriptor in this chain.  This is done
4940          * because a single map is used for all
4941          * segments of the mbuf and we don't want to
4942          * unload the map before all of the segments
4943          * have been freed.
4944          */
4945         sc->tx_mbuf_ptr[chain_prod] = m0;
4946
4947         tmp_map = sc->tx_mbuf_map[chain_prod];
4948         sc->tx_mbuf_map[chain_prod] = map;
4949         sc->tx_mbuf_map[chain_prod_start] = tmp_map;
4950
4951         sc->used_tx_bd += nsegs;
4952
4953         /* Update some debug statistic counters */
4954         DBRUNIF((sc->used_tx_bd > sc->tx_hi_watermark),
4955                 sc->tx_hi_watermark = sc->used_tx_bd);
4956         DBRUNIF((sc->used_tx_bd == sc->max_tx_bd), sc->tx_full_count++);
4957         DBRUNIF(1, sc->tx_mbuf_alloc++);
4958
4959         DBRUN(BCE_VERBOSE_SEND,
4960               bce_dump_tx_mbuf_chain(sc, chain_prod, nsegs));
4961
4962         /* prod points to the next free tx_bd at this point. */
4963         sc->tx_prod = prod;
4964         sc->tx_prod_bseq = prod_bseq;
4965 back:
4966         if (error) {
4967                 m_freem(*m_head);
4968                 *m_head = NULL;
4969         }
4970         return error;
4971 }
4972
4973
4974 /****************************************************************************/
4975 /* Main transmit routine when called from another routine with a lock.      */
4976 /*                                                                          */
4977 /* Returns:                                                                 */
4978 /*   Nothing.                                                               */
4979 /****************************************************************************/
4980 static void
4981 bce_start(struct ifnet *ifp)
4982 {
4983         struct bce_softc *sc = ifp->if_softc;
4984         int count = 0;
4985
4986         ASSERT_SERIALIZED(ifp->if_serializer);
4987
4988         /* If there's no link or the transmit queue is empty then just exit. */
4989         if (!sc->bce_link) {
4990                 ifq_purge(&ifp->if_snd);
4991                 return;
4992         }
4993
4994         if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING)
4995                 return;
4996
4997         DBPRINT(sc, BCE_INFO_SEND,
4998                 "%s(): Start: tx_prod = 0x%04X, tx_chain_prod = %04zX, "
4999                 "tx_prod_bseq = 0x%08X\n",
5000                 __func__,
5001                 sc->tx_prod, TX_CHAIN_IDX(sc, sc->tx_prod), sc->tx_prod_bseq);
5002
5003         for (;;) {
5004                 struct mbuf *m_head;
5005
5006                 /*
5007                  * We keep BCE_TX_SPARE_SPACE entries, so bce_encap() is
5008                  * unlikely to fail.
5009                  */
5010                 if (sc->max_tx_bd - sc->used_tx_bd < BCE_TX_SPARE_SPACE) {
5011                         ifp->if_flags |= IFF_OACTIVE;
5012                         break;
5013                 }
5014
5015                 /* Check for any frames to send. */
5016                 m_head = ifq_dequeue(&ifp->if_snd, NULL);
5017                 if (m_head == NULL)
5018                         break;
5019
5020                 /*
5021                  * Pack the data into the transmit ring. If we
5022                  * don't have room, place the mbuf back at the
5023                  * head of the queue and set the OACTIVE flag
5024                  * to wait for the NIC to drain the chain.
5025                  */
5026                 if (bce_encap(sc, &m_head)) {
5027                         ifp->if_oerrors++;
5028                         if (sc->used_tx_bd == 0) {
5029                                 continue;
5030                         } else {
5031                                 ifp->if_flags |= IFF_OACTIVE;
5032                                 break;
5033                         }
5034                 }
5035
5036                 count++;
5037
5038                 /* Send a copy of the frame to any BPF listeners. */
5039                 ETHER_BPF_MTAP(ifp, m_head);
5040         }
5041
5042         if (count == 0) {
5043                 /* no packets were dequeued */
5044                 DBPRINT(sc, BCE_VERBOSE_SEND,
5045                         "%s(): No packets were dequeued\n", __func__);
5046                 return;
5047         }
5048
5049         DBPRINT(sc, BCE_INFO_SEND,
5050                 "%s(): End: tx_prod = 0x%04X, tx_chain_prod = 0x%04zX, "
5051                 "tx_prod_bseq = 0x%08X\n",
5052                 __func__,
5053                 sc->tx_prod, TX_CHAIN_IDX(sc, sc->tx_prod), sc->tx_prod_bseq);
5054
5055         REG_WR(sc, BCE_MQ_COMMAND,
5056             REG_RD(sc, BCE_MQ_COMMAND) | BCE_MQ_COMMAND_NO_MAP_ERROR);
5057
5058         /* Start the transmit. */
5059         REG_WR16(sc, MB_GET_CID_ADDR(TX_CID) + BCE_L2CTX_TX_HOST_BIDX, sc->tx_prod);
5060         REG_WR(sc, MB_GET_CID_ADDR(TX_CID) + BCE_L2CTX_TX_HOST_BSEQ, sc->tx_prod_bseq);
5061
5062         /* Set the tx timeout. */
5063         ifp->if_timer = BCE_TX_TIMEOUT;
5064 }
5065
5066
5067 /****************************************************************************/
5068 /* Handles any IOCTL calls from the operating system.                       */
5069 /*                                                                          */
5070 /* Returns:                                                                 */
5071 /*   0 for success, positive value for failure.                             */
5072 /****************************************************************************/
5073 static int
5074 bce_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
5075 {
5076         struct bce_softc *sc = ifp->if_softc;
5077         struct ifreq *ifr = (struct ifreq *)data;
5078         struct mii_data *mii;
5079         int mask, error = 0;
5080
5081         ASSERT_SERIALIZED(ifp->if_serializer);
5082
5083         switch(command) {
5084         case SIOCSIFMTU:
5085                 /* Check that the MTU setting is supported. */
5086                 if (ifr->ifr_mtu < BCE_MIN_MTU ||
5087 #ifdef notyet
5088                     ifr->ifr_mtu > BCE_MAX_JUMBO_MTU
5089 #else
5090                     ifr->ifr_mtu > ETHERMTU
5091 #endif
5092                    ) {
5093                         error = EINVAL;
5094                         break;
5095                 }
5096
5097                 DBPRINT(sc, BCE_INFO, "Setting new MTU of %d\n", ifr->ifr_mtu);
5098
5099                 ifp->if_mtu = ifr->ifr_mtu;
5100                 ifp->if_flags &= ~IFF_RUNNING;  /* Force reinitialize */
5101                 bce_init(sc);
5102                 break;
5103
5104         case SIOCSIFFLAGS:
5105                 if (ifp->if_flags & IFF_UP) {
5106                         if (ifp->if_flags & IFF_RUNNING) {
5107                                 mask = ifp->if_flags ^ sc->bce_if_flags;
5108
5109                                 if (mask & (IFF_PROMISC | IFF_ALLMULTI))
5110                                         bce_set_rx_mode(sc);
5111                         } else {
5112                                 bce_init(sc);
5113                         }
5114                 } else if (ifp->if_flags & IFF_RUNNING) {
5115                         bce_stop(sc);
5116
5117                         /* If MFW is running, restart the controller a bit. */
5118                         if (sc->bce_flags & BCE_MFW_ENABLE_FLAG) {
5119                                 bce_reset(sc, BCE_DRV_MSG_CODE_RESET);
5120                                 bce_chipinit(sc);
5121                                 bce_mgmt_init(sc);
5122                         }
5123                 }
5124                 sc->bce_if_flags = ifp->if_flags;
5125                 break;
5126
5127         case SIOCADDMULTI:
5128         case SIOCDELMULTI:
5129                 if (ifp->if_flags & IFF_RUNNING)
5130                         bce_set_rx_mode(sc);
5131                 break;
5132
5133         case SIOCSIFMEDIA:
5134         case SIOCGIFMEDIA:
5135                 DBPRINT(sc, BCE_VERBOSE, "bce_phy_flags = 0x%08X\n",
5136                         sc->bce_phy_flags);
5137                 DBPRINT(sc, BCE_VERBOSE, "Copper media set/get\n");
5138
5139                 mii = device_get_softc(sc->bce_miibus);
5140                 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command);
5141                 break;
5142
5143         case SIOCSIFCAP:
5144                 mask = ifr->ifr_reqcap ^ ifp->if_capenable;
5145                 DBPRINT(sc, BCE_INFO, "Received SIOCSIFCAP = 0x%08X\n",
5146                         (uint32_t) mask);
5147
5148                 if (mask & IFCAP_HWCSUM) {
5149                         ifp->if_capenable ^= (mask & IFCAP_HWCSUM);
5150                         if (IFCAP_HWCSUM & ifp->if_capenable)
5151                                 ifp->if_hwassist = BCE_IF_HWASSIST;
5152                         else
5153                                 ifp->if_hwassist = 0;
5154                 }
5155                 break;
5156
5157         default:
5158                 error = ether_ioctl(ifp, command, data);
5159                 break;
5160         }
5161         return error;
5162 }
5163
5164
5165 /****************************************************************************/
5166 /* Transmit timeout handler.                                                */
5167 /*                                                                          */
5168 /* Returns:                                                                 */
5169 /*   Nothing.                                                               */
5170 /****************************************************************************/
5171 static void
5172 bce_watchdog(struct ifnet *ifp)
5173 {
5174         struct bce_softc *sc = ifp->if_softc;
5175
5176         ASSERT_SERIALIZED(ifp->if_serializer);
5177
5178         DBRUN(BCE_VERBOSE_SEND,
5179               bce_dump_driver_state(sc);
5180               bce_dump_status_block(sc));
5181
5182         /*
5183          * If we are in this routine because of pause frames, then
5184          * don't reset the hardware.
5185          */
5186         if (REG_RD(sc, BCE_EMAC_TX_STATUS) & BCE_EMAC_TX_STATUS_XOFFED)
5187                 return;
5188
5189         if_printf(ifp, "Watchdog timeout occurred, resetting!\n");
5190
5191         /* DBRUN(BCE_FATAL, bce_breakpoint(sc)); */
5192
5193         ifp->if_flags &= ~IFF_RUNNING;  /* Force reinitialize */
5194         bce_init(sc);
5195
5196         ifp->if_oerrors++;
5197
5198         if (!ifq_is_empty(&ifp->if_snd))
5199                 if_devstart(ifp);
5200 }
5201
5202
5203 #ifdef DEVICE_POLLING
5204
5205 static void
5206 bce_poll(struct ifnet *ifp, enum poll_cmd cmd, int count)
5207 {
5208         struct bce_softc *sc = ifp->if_softc;
5209         struct status_block *sblk = sc->status_block;
5210         uint16_t hw_tx_cons, hw_rx_cons;
5211
5212         ASSERT_SERIALIZED(ifp->if_serializer);
5213
5214         switch (cmd) {
5215         case POLL_REGISTER:
5216                 bce_disable_intr(sc);
5217
5218                 REG_WR(sc, BCE_HC_RX_QUICK_CONS_TRIP,
5219                        (1 << 16) | sc->bce_rx_quick_cons_trip);
5220                 REG_WR(sc, BCE_HC_TX_QUICK_CONS_TRIP,
5221                        (1 << 16) | sc->bce_tx_quick_cons_trip);
5222                 return;
5223         case POLL_DEREGISTER:
5224                 bce_enable_intr(sc);
5225
5226                 REG_WR(sc, BCE_HC_TX_QUICK_CONS_TRIP,
5227                        (sc->bce_tx_quick_cons_trip_int << 16) |
5228                        sc->bce_tx_quick_cons_trip);
5229                 REG_WR(sc, BCE_HC_RX_QUICK_CONS_TRIP,
5230                        (sc->bce_rx_quick_cons_trip_int << 16) |
5231                        sc->bce_rx_quick_cons_trip);
5232                 return;
5233         default:
5234                 break;
5235         }
5236
5237         /*
5238          * Save the status block index value for use when enabling
5239          * the interrupt.
5240          */
5241         sc->last_status_idx = sblk->status_idx;
5242
5243         /* Make sure status index is extracted before rx/tx cons */
5244         cpu_lfence();
5245
5246         if (cmd == POLL_AND_CHECK_STATUS) {
5247                 uint32_t status_attn_bits;
5248
5249                 status_attn_bits = sblk->status_attn_bits;
5250
5251                 DBRUNIF(DB_RANDOMTRUE(bce_debug_unexpected_attention),
5252                         if_printf(ifp,
5253                         "Simulating unexpected status attention bit set.");
5254                         status_attn_bits |= STATUS_ATTN_BITS_PARITY_ERROR);
5255
5256                 /* Was it a link change interrupt? */
5257                 if ((status_attn_bits & STATUS_ATTN_BITS_LINK_STATE) !=
5258                     (sblk->status_attn_bits_ack & STATUS_ATTN_BITS_LINK_STATE))
5259                         bce_phy_intr(sc);
5260
5261                 /* Clear any transient status updates during link state change. */
5262                 REG_WR(sc, BCE_HC_COMMAND,
5263                     sc->hc_command | BCE_HC_COMMAND_COAL_NOW_WO_INT);
5264                 REG_RD(sc, BCE_HC_COMMAND);
5265
5266                 /*
5267                  * If any other attention is asserted then
5268                  * the chip is toast.
5269                  */
5270                 if ((status_attn_bits & ~STATUS_ATTN_BITS_LINK_STATE) !=
5271                      (sblk->status_attn_bits_ack &
5272                       ~STATUS_ATTN_BITS_LINK_STATE)) {
5273                         DBRUN(1, sc->unexpected_attentions++);
5274
5275                         if_printf(ifp, "Fatal attention detected: 0x%08X\n",
5276                                   sblk->status_attn_bits);
5277
5278                         DBRUN(BCE_FATAL,
5279                         if (bce_debug_unexpected_attention == 0)
5280                                 bce_breakpoint(sc));
5281
5282                         bce_init(sc);
5283                         return;
5284                 }
5285         }
5286
5287         hw_rx_cons = bce_get_hw_rx_cons(sc);
5288         hw_tx_cons = bce_get_hw_tx_cons(sc);
5289
5290         /* Check for any completed RX frames. */
5291         if (hw_rx_cons != sc->rx_cons)
5292                 bce_rx_intr(sc, count, hw_rx_cons);
5293
5294         /* Check for any completed TX frames. */
5295         if (hw_tx_cons != sc->tx_cons)
5296                 bce_tx_intr(sc, hw_tx_cons);
5297
5298         /* Check for new frames to transmit. */
5299         if (!ifq_is_empty(&ifp->if_snd))
5300                 if_devstart(ifp);
5301 }
5302
5303 #endif  /* DEVICE_POLLING */
5304
5305
5306 /*
5307  * Interrupt handler.
5308  */
5309 /****************************************************************************/
5310 /* Main interrupt entry point.  Verifies that the controller generated the  */
5311 /* interrupt and then calls a separate routine for handle the various       */
5312 /* interrupt causes (PHY, TX, RX).                                          */
5313 /*                                                                          */
5314 /* Returns:                                                                 */
5315 /*   0 for success, positive value for failure.                             */
5316 /****************************************************************************/
5317 static void
5318 bce_intr(struct bce_softc *sc)
5319 {
5320         struct ifnet *ifp = &sc->arpcom.ac_if;
5321         struct status_block *sblk;
5322         uint16_t hw_rx_cons, hw_tx_cons;
5323         uint32_t status_attn_bits;
5324
5325         ASSERT_SERIALIZED(ifp->if_serializer);
5326
5327         sblk = sc->status_block;
5328
5329         /*
5330          * Save the status block index value for use during
5331          * the next interrupt.
5332          */
5333         sc->last_status_idx = sblk->status_idx;
5334
5335         /* Make sure status index is extracted before rx/tx cons */
5336         cpu_lfence();
5337
5338         /* Check if the hardware has finished any work. */
5339         hw_rx_cons = bce_get_hw_rx_cons(sc);
5340         hw_tx_cons = bce_get_hw_tx_cons(sc);
5341
5342         status_attn_bits = sblk->status_attn_bits;
5343
5344         /* Was it a link change interrupt? */
5345         if ((status_attn_bits & STATUS_ATTN_BITS_LINK_STATE) !=
5346             (sblk->status_attn_bits_ack & STATUS_ATTN_BITS_LINK_STATE)) {
5347                 bce_phy_intr(sc);
5348
5349                 /*
5350                  * Clear any transient status updates during link state
5351                  * change.
5352                  */
5353                 REG_WR(sc, BCE_HC_COMMAND,
5354                     sc->hc_command | BCE_HC_COMMAND_COAL_NOW_WO_INT);
5355                 REG_RD(sc, BCE_HC_COMMAND);
5356         }
5357
5358         /*
5359          * If any other attention is asserted then
5360          * the chip is toast.
5361          */
5362         if ((status_attn_bits & ~STATUS_ATTN_BITS_LINK_STATE) !=
5363             (sblk->status_attn_bits_ack & ~STATUS_ATTN_BITS_LINK_STATE)) {
5364                 if_printf(ifp, "Fatal attention detected: 0x%08X\n",
5365                           sblk->status_attn_bits);
5366                 bce_init(sc);
5367                 return;
5368         }
5369
5370         /* Check for any completed RX frames. */
5371         if (hw_rx_cons != sc->rx_cons)
5372                 bce_rx_intr(sc, -1, hw_rx_cons);
5373
5374         /* Check for any completed TX frames. */
5375         if (hw_tx_cons != sc->tx_cons)
5376                 bce_tx_intr(sc, hw_tx_cons);
5377
5378         /* Re-enable interrupts. */
5379         bce_reenable_intr(sc);
5380
5381         if (sc->bce_coalchg_mask)
5382                 bce_coal_change(sc);
5383
5384         /* Handle any frames that arrived while handling the interrupt. */
5385         if (!ifq_is_empty(&ifp->if_snd))
5386                 if_devstart(ifp);
5387 }
5388
5389 static void
5390 bce_intr_legacy(void *xsc)
5391 {
5392         struct bce_softc *sc = xsc;
5393         struct status_block *sblk;
5394
5395         sblk = sc->status_block;
5396
5397         /*
5398          * If the hardware status block index matches the last value
5399          * read by the driver and we haven't asserted our interrupt
5400          * then there's nothing to do.
5401          */
5402         if (sblk->status_idx == sc->last_status_idx &&
5403             (REG_RD(sc, BCE_PCICFG_MISC_STATUS) &
5404              BCE_PCICFG_MISC_STATUS_INTA_VALUE))
5405                 return;
5406
5407         /* Ack the interrupt and stop others from occuring. */
5408         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
5409                BCE_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
5410                BCE_PCICFG_INT_ACK_CMD_MASK_INT);
5411
5412         /*
5413          * Read back to deassert IRQ immediately to avoid too
5414          * many spurious interrupts.
5415          */
5416         REG_RD(sc, BCE_PCICFG_INT_ACK_CMD);
5417
5418         bce_intr(sc);
5419 }
5420
5421 static void
5422 bce_intr_msi(void *xsc)
5423 {
5424         struct bce_softc *sc = xsc;
5425
5426         /* Ack the interrupt and stop others from occuring. */
5427         REG_WR(sc, BCE_PCICFG_INT_ACK_CMD,
5428                BCE_PCICFG_INT_ACK_CMD_USE_INT_HC_PARAM |
5429                BCE_PCICFG_INT_ACK_CMD_MASK_INT);
5430
5431         bce_intr(sc);
5432 }
5433
5434 static void
5435 bce_intr_msi_oneshot(void *xsc)
5436 {
5437         bce_intr(xsc);
5438 }
5439
5440
5441 /****************************************************************************/
5442 /* Programs the various packet receive modes (broadcast and multicast).     */
5443 /*                                                                          */
5444 /* Returns:                                                                 */
5445 /*   Nothing.                                                               */
5446 /****************************************************************************/
5447 static void
5448 bce_set_rx_mode(struct bce_softc *sc)
5449 {
5450         struct ifnet *ifp = &sc->arpcom.ac_if;
5451         struct ifmultiaddr *ifma;
5452         uint32_t hashes[NUM_MC_HASH_REGISTERS] = { 0, 0, 0, 0, 0, 0, 0, 0 };
5453         uint32_t rx_mode, sort_mode;
5454         int h, i;
5455
5456         ASSERT_SERIALIZED(ifp->if_serializer);
5457
5458         /* Initialize receive mode default settings. */
5459         rx_mode = sc->rx_mode &
5460                   ~(BCE_EMAC_RX_MODE_PROMISCUOUS |
5461                     BCE_EMAC_RX_MODE_KEEP_VLAN_TAG);
5462         sort_mode = 1 | BCE_RPM_SORT_USER0_BC_EN;
5463
5464         /*
5465          * ASF/IPMI/UMP firmware requires that VLAN tag stripping
5466          * be enbled.
5467          */
5468         if (!(BCE_IF_CAPABILITIES & IFCAP_VLAN_HWTAGGING) &&
5469             !(sc->bce_flags & BCE_MFW_ENABLE_FLAG))
5470                 rx_mode |= BCE_EMAC_RX_MODE_KEEP_VLAN_TAG;
5471
5472         /*
5473          * Check for promiscuous, all multicast, or selected
5474          * multicast address filtering.
5475          */
5476         if (ifp->if_flags & IFF_PROMISC) {
5477                 DBPRINT(sc, BCE_INFO, "Enabling promiscuous mode.\n");
5478
5479                 /* Enable promiscuous mode. */
5480                 rx_mode |= BCE_EMAC_RX_MODE_PROMISCUOUS;
5481                 sort_mode |= BCE_RPM_SORT_USER0_PROM_EN;
5482         } else if (ifp->if_flags & IFF_ALLMULTI) {
5483                 DBPRINT(sc, BCE_INFO, "Enabling all multicast mode.\n");
5484
5485                 /* Enable all multicast addresses. */
5486                 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
5487                         REG_WR(sc, BCE_EMAC_MULTICAST_HASH0 + (i * 4),
5488                                0xffffffff);
5489                 }
5490                 sort_mode |= BCE_RPM_SORT_USER0_MC_EN;
5491         } else {
5492                 /* Accept one or more multicast(s). */
5493                 DBPRINT(sc, BCE_INFO, "Enabling selective multicast mode.\n");
5494
5495                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
5496                         if (ifma->ifma_addr->sa_family != AF_LINK)
5497                                 continue;
5498                         h = ether_crc32_le(
5499                             LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
5500                             ETHER_ADDR_LEN) & 0xFF;
5501                         hashes[(h & 0xE0) >> 5] |= 1 << (h & 0x1F);
5502                 }
5503
5504                 for (i = 0; i < NUM_MC_HASH_REGISTERS; i++) {
5505                         REG_WR(sc, BCE_EMAC_MULTICAST_HASH0 + (i * 4),
5506                                hashes[i]);
5507                 }
5508                 sort_mode |= BCE_RPM_SORT_USER0_MC_HSH_EN;
5509         }
5510
5511         /* Only make changes if the recive mode has actually changed. */
5512         if (rx_mode != sc->rx_mode) {
5513                 DBPRINT(sc, BCE_VERBOSE, "Enabling new receive mode: 0x%08X\n",
5514                         rx_mode);
5515
5516                 sc->rx_mode = rx_mode;
5517                 REG_WR(sc, BCE_EMAC_RX_MODE, rx_mode);
5518         }
5519
5520         /* Disable and clear the exisitng sort before enabling a new sort. */
5521         REG_WR(sc, BCE_RPM_SORT_USER0, 0x0);
5522         REG_WR(sc, BCE_RPM_SORT_USER0, sort_mode);
5523         REG_WR(sc, BCE_RPM_SORT_USER0, sort_mode | BCE_RPM_SORT_USER0_ENA);
5524 }
5525
5526
5527 /****************************************************************************/
5528 /* Called periodically to updates statistics from the controllers           */
5529 /* statistics block.                                                        */
5530 /*                                                                          */
5531 /* Returns:                                                                 */
5532 /*   Nothing.                                                               */
5533 /****************************************************************************/
5534 static void
5535 bce_stats_update(struct bce_softc *sc)
5536 {
5537         struct ifnet *ifp = &sc->arpcom.ac_if;
5538         struct statistics_block *stats = sc->stats_block;
5539
5540         DBPRINT(sc, BCE_EXCESSIVE, "Entering %s()\n", __func__);
5541
5542         ASSERT_SERIALIZED(ifp->if_serializer);
5543
5544         /*
5545          * Certain controllers don't report carrier sense errors correctly.
5546          * See errata E11_5708CA0_1165.
5547          */
5548         if (!(BCE_CHIP_NUM(sc) == BCE_CHIP_NUM_5706) &&
5549             !(BCE_CHIP_ID(sc) == BCE_CHIP_ID_5708_A0)) {
5550                 ifp->if_oerrors +=
5551                         (u_long)stats->stat_Dot3StatsCarrierSenseErrors;
5552         }
5553
5554         /*
5555          * Update the sysctl statistics from the hardware statistics.
5556          */
5557         sc->stat_IfHCInOctets =
5558                 ((uint64_t)stats->stat_IfHCInOctets_hi << 32) +
5559                  (uint64_t)stats->stat_IfHCInOctets_lo;
5560
5561         sc->stat_IfHCInBadOctets =
5562                 ((uint64_t)stats->stat_IfHCInBadOctets_hi << 32) +
5563                  (uint64_t)stats->stat_IfHCInBadOctets_lo;
5564
5565         sc->stat_IfHCOutOctets =
5566                 ((uint64_t)stats->stat_IfHCOutOctets_hi << 32) +
5567                  (uint64_t)stats->stat_IfHCOutOctets_lo;
5568
5569         sc->stat_IfHCOutBadOctets =
5570                 ((uint64_t)stats->stat_IfHCOutBadOctets_hi << 32) +
5571                  (uint64_t)stats->stat_IfHCOutBadOctets_lo;
5572
5573         sc->stat_IfHCInUcastPkts =
5574                 ((uint64_t)stats->stat_IfHCInUcastPkts_hi << 32) +
5575                  (uint64_t)stats->stat_IfHCInUcastPkts_lo;
5576
5577         sc->stat_IfHCInMulticastPkts =
5578                 ((uint64_t)stats->stat_IfHCInMulticastPkts_hi << 32) +
5579                  (uint64_t)stats->stat_IfHCInMulticastPkts_lo;
5580
5581         sc->stat_IfHCInBroadcastPkts =
5582                 ((uint64_t)stats->stat_IfHCInBroadcastPkts_hi << 32) +
5583                  (uint64_t)stats->stat_IfHCInBroadcastPkts_lo;
5584
5585         sc->stat_IfHCOutUcastPkts =
5586                 ((uint64_t)stats->stat_IfHCOutUcastPkts_hi << 32) +
5587                  (uint64_t)stats->stat_IfHCOutUcastPkts_lo;
5588
5589         sc->stat_IfHCOutMulticastPkts =
5590                 ((uint64_t)stats->stat_IfHCOutMulticastPkts_hi << 32) +
5591                  (uint64_t)stats->stat_IfHCOutMulticastPkts_lo;
5592
5593         sc->stat_IfHCOutBroadcastPkts =
5594                 ((uint64_t)stats->stat_IfHCOutBroadcastPkts_hi << 32) +
5595                  (uint64_t)stats->stat_IfHCOutBroadcastPkts_lo;
5596
5597         sc->stat_emac_tx_stat_dot3statsinternalmactransmiterrors =
5598                 stats->stat_emac_tx_stat_dot3statsinternalmactransmiterrors;
5599
5600         sc->stat_Dot3StatsCarrierSenseErrors =
5601                 stats->stat_Dot3StatsCarrierSenseErrors;
5602
5603         sc->stat_Dot3StatsFCSErrors =
5604                 stats->stat_Dot3StatsFCSErrors;
5605
5606         sc->stat_Dot3StatsAlignmentErrors =
5607                 stats->stat_Dot3StatsAlignmentErrors;
5608
5609         sc->stat_Dot3StatsSingleCollisionFrames =
5610                 stats->stat_Dot3StatsSingleCollisionFrames;
5611
5612         sc->stat_Dot3StatsMultipleCollisionFrames =
5613                 stats->stat_Dot3StatsMultipleCollisionFrames;
5614
5615         sc->stat_Dot3StatsDeferredTransmissions =
5616                 stats->stat_Dot3StatsDeferredTransmissions;
5617
5618         sc->stat_Dot3StatsExcessiveCollisions =
5619                 stats->stat_Dot3StatsExcessiveCollisions;
5620
5621         sc->stat_Dot3StatsLateCollisions =
5622                 stats->stat_Dot3StatsLateCollisions;
5623
5624         sc->stat_EtherStatsCollisions =
5625                 stats->stat_EtherStatsCollisions;
5626
5627         sc->stat_EtherStatsFragments =
5628                 stats->stat_EtherStatsFragments;
5629
5630         sc->stat_EtherStatsJabbers =
5631                 stats->stat_EtherStatsJabbers;
5632
5633         sc->stat_EtherStatsUndersizePkts =
5634                 stats->stat_EtherStatsUndersizePkts;
5635
5636         sc->stat_EtherStatsOverrsizePkts =
5637                 stats->stat_EtherStatsOverrsizePkts;
5638
5639         sc->stat_EtherStatsPktsRx64Octets =
5640                 stats->stat_EtherStatsPktsRx64Octets;
5641
5642         sc->stat_EtherStatsPktsRx65Octetsto127Octets =
5643                 stats->stat_EtherStatsPktsRx65Octetsto127Octets;
5644
5645         sc->stat_EtherStatsPktsRx128Octetsto255Octets =
5646                 stats->stat_EtherStatsPktsRx128Octetsto255Octets;
5647
5648         sc->stat_EtherStatsPktsRx256Octetsto511Octets =
5649                 stats->stat_EtherStatsPktsRx256Octetsto511Octets;
5650
5651         sc->stat_EtherStatsPktsRx512Octetsto1023Octets =
5652                 stats->stat_EtherStatsPktsRx512Octetsto1023Octets;
5653
5654         sc->stat_EtherStatsPktsRx1024Octetsto1522Octets =
5655                 stats->stat_EtherStatsPktsRx1024Octetsto1522Octets;
5656
5657         sc->stat_EtherStatsPktsRx1523Octetsto9022Octets =
5658                 stats->stat_EtherStatsPktsRx1523Octetsto9022Octets;
5659
5660         sc->stat_EtherStatsPktsTx64Octets =
5661                 stats->stat_EtherStatsPktsTx64Octets;
5662
5663         sc->stat_EtherStatsPktsTx65Octetsto127Octets =
5664                 stats->stat_EtherStatsPktsTx65Octetsto127Octets;
5665
5666         sc->stat_EtherStatsPktsTx128Octetsto255Octets =
5667                 stats->stat_EtherStatsPktsTx128Octetsto255Octets;
5668
5669         sc->stat_EtherStatsPktsTx256Octetsto511Octets =
5670                 stats->stat_EtherStatsPktsTx256Octetsto511Octets;
5671
5672         sc->stat_EtherStatsPktsTx512Octetsto1023Octets =
5673                 stats->stat_EtherStatsPktsTx512Octetsto1023Octets;
5674
5675         sc->stat_EtherStatsPktsTx1024Octetsto1522Octets =
5676                 stats->stat_EtherStatsPktsTx1024Octetsto1522Octets;
5677
5678         sc->stat_EtherStatsPktsTx1523Octetsto9022Octets =
5679                 stats->stat_EtherStatsPktsTx1523Octetsto9022Octets;
5680
5681         sc->stat_XonPauseFramesReceived =
5682                 stats->stat_XonPauseFramesReceived;
5683
5684         sc->stat_XoffPauseFramesReceived =
5685                 stats->stat_XoffPauseFramesReceived;
5686
5687         sc->stat_OutXonSent =
5688                 stats->stat_OutXonSent;
5689
5690         sc->stat_OutXoffSent =
5691                 stats->stat_OutXoffSent;
5692
5693         sc->stat_FlowControlDone =
5694                 stats->stat_FlowControlDone;
5695
5696         sc->stat_MacControlFramesReceived =
5697                 stats->stat_MacControlFramesReceived;
5698
5699         sc->stat_XoffStateEntered =
5700                 stats->stat_XoffStateEntered;
5701
5702         sc->stat_IfInFramesL2FilterDiscards =
5703                 stats->stat_IfInFramesL2FilterDiscards;
5704
5705         sc->stat_IfInRuleCheckerDiscards =
5706                 stats->stat_IfInRuleCheckerDiscards;
5707
5708         sc->stat_IfInFTQDiscards =
5709                 stats->stat_IfInFTQDiscards;
5710
5711         sc->stat_IfInMBUFDiscards =
5712                 stats->stat_IfInMBUFDiscards;
5713
5714         sc->stat_IfInRuleCheckerP4Hit =
5715                 stats->stat_IfInRuleCheckerP4Hit;
5716
5717         sc->stat_CatchupInRuleCheckerDiscards =
5718                 stats->stat_CatchupInRuleCheckerDiscards;
5719
5720         sc->stat_CatchupInFTQDiscards =
5721                 stats->stat_CatchupInFTQDiscards;
5722
5723         sc->stat_CatchupInMBUFDiscards =
5724                 stats->stat_CatchupInMBUFDiscards;
5725
5726         sc->stat_CatchupInRuleCheckerP4Hit =
5727                 stats->stat_CatchupInRuleCheckerP4Hit;
5728
5729         sc->com_no_buffers = REG_RD_IND(sc, 0x120084);
5730
5731         /*
5732          * Update the interface statistics from the
5733          * hardware statistics.
5734          */
5735         ifp->if_collisions = (u_long)sc->stat_EtherStatsCollisions;
5736
5737         ifp->if_ierrors = (u_long)sc->stat_EtherStatsUndersizePkts +
5738             (u_long)sc->stat_EtherStatsOverrsizePkts +
5739             (u_long)sc->stat_IfInMBUFDiscards +
5740             (u_long)sc->stat_Dot3StatsAlignmentErrors +
5741             (u_long)sc->stat_Dot3StatsFCSErrors +
5742             (u_long)sc->stat_IfInRuleCheckerDiscards +
5743             (u_long)sc->stat_IfInFTQDiscards +
5744             (u_long)sc->com_no_buffers;
5745
5746         ifp->if_oerrors =
5747             (u_long)sc->stat_emac_tx_stat_dot3statsinternalmactransmiterrors +
5748             (u_long)sc->stat_Dot3StatsExcessiveCollisions +
5749             (u_long)sc->stat_Dot3StatsLateCollisions;
5750
5751         DBPRINT(sc, BCE_EXCESSIVE, "Exiting %s()\n", __func__);
5752 }
5753
5754
5755 /****************************************************************************/
5756 /* Periodic function to notify the bootcode that the driver is still        */
5757 /* present.                                                                 */
5758 /*                                                                          */
5759 /* Returns:                                                                 */
5760 /*   Nothing.                                                               */
5761 /****************************************************************************/
5762 static void
5763 bce_pulse(void *xsc)
5764 {
5765         struct bce_softc *sc = xsc;
5766         struct ifnet *ifp = &sc->arpcom.ac_if;
5767         uint32_t msg;
5768
5769         lwkt_serialize_enter(ifp->if_serializer);
5770
5771         if (ifp->if_flags & IFF_RUNNING) {
5772                 if (sc->bce_irq_type == PCI_INTR_TYPE_MSI &&
5773                     (sc->bce_flags & BCE_ONESHOT_MSI_FLAG) == 0)
5774                         bce_pulse_check_msi(sc);
5775         }
5776
5777         /* Tell the firmware that the driver is still running. */
5778         msg = (uint32_t)++sc->bce_fw_drv_pulse_wr_seq;
5779         bce_shmem_wr(sc, BCE_DRV_PULSE_MB, msg);
5780
5781         /* Update the bootcode condition. */
5782         sc->bc_state = bce_shmem_rd(sc, BCE_BC_STATE_CONDITION);
5783
5784         /* Report whether the bootcode still knows the driver is running. */
5785         if (!sc->bce_drv_cardiac_arrest) {
5786                 if (!(sc->bc_state & BCE_CONDITION_DRV_PRESENT)) {
5787                         sc->bce_drv_cardiac_arrest = 1;
5788                         if_printf(ifp, "Bootcode lost the driver pulse! "
5789                             "(bc_state = 0x%08X)\n", sc->bc_state);
5790                 }
5791         } else {
5792                 /*
5793                  * Not supported by all bootcode versions.
5794                  * (v5.0.11+ and v5.2.1+)  Older bootcode
5795                  * will require the driver to reset the
5796                  * controller to clear this condition.
5797                  */
5798                 if (sc->bc_state & BCE_CONDITION_DRV_PRESENT) {
5799                         sc->bce_drv_cardiac_arrest = 0;
5800                         if_printf(ifp, "Bootcode found the driver pulse! "
5801                             "(bc_state = 0x%08X)\n", sc->bc_state);
5802                 }
5803         }
5804
5805         /* Schedule the next pulse. */
5806         callout_reset(&sc->bce_pulse_callout, hz, bce_pulse, sc);
5807
5808         lwkt_serialize_exit(ifp->if_serializer);
5809 }
5810
5811 static void
5812 bce_pulse_check_msi(struct bce_softc *sc)
5813 {
5814         int check = 0;
5815
5816         if (bce_get_hw_rx_cons(sc) != sc->rx_cons) {
5817                 check = 1;
5818         } else if (bce_get_hw_tx_cons(sc) != sc->tx_cons) {
5819                 check = 1;
5820         } else {
5821                 struct status_block *sblk = sc->status_block;
5822
5823                 if ((sblk->status_attn_bits & STATUS_ATTN_BITS_LINK_STATE) !=
5824                     (sblk->status_attn_bits_ack & STATUS_ATTN_BITS_LINK_STATE))
5825                         check = 1;
5826         }
5827
5828         if (check) {
5829                 uint32_t msi_ctrl;
5830
5831                 msi_ctrl = REG_RD(sc, BCE_PCICFG_MSI_CONTROL);
5832                 if ((msi_ctrl & BCE_PCICFG_MSI_CONTROL_ENABLE) == 0)
5833                         return;
5834
5835                 if (sc->pulse_check_status_idx == sc->last_status_idx) {
5836                         if_printf(&sc->arpcom.ac_if, "missing MSI\n");
5837
5838                         REG_WR(sc, BCE_PCICFG_MSI_CONTROL,
5839                             msi_ctrl & ~BCE_PCICFG_MSI_CONTROL_ENABLE);
5840                         REG_WR(sc, BCE_PCICFG_MSI_CONTROL, msi_ctrl);
5841
5842                         bce_intr_msi(sc);
5843                 }
5844         }
5845         sc->pulse_check_status_idx = sc->last_status_idx;
5846 }
5847
5848 /****************************************************************************/
5849 /* Periodic function to perform maintenance tasks.                          */
5850 /*                                                                          */
5851 /* Returns:                                                                 */
5852 /*   Nothing.                                                               */
5853 /****************************************************************************/
5854 static void
5855 bce_tick_serialized(struct bce_softc *sc)
5856 {
5857         struct ifnet *ifp = &sc->arpcom.ac_if;
5858         struct mii_data *mii;
5859
5860         ASSERT_SERIALIZED(ifp->if_serializer);
5861
5862         /* Update the statistics from the hardware statistics block. */
5863         bce_stats_update(sc);
5864
5865         /* Schedule the next tick. */
5866         callout_reset(&sc->bce_tick_callout, hz, bce_tick, sc);
5867
5868         /* If link is up already up then we're done. */
5869         if (sc->bce_link)
5870                 return;
5871
5872         mii = device_get_softc(sc->bce_miibus);
5873         mii_tick(mii);
5874
5875         /* Check if the link has come up. */
5876         if ((mii->mii_media_status & IFM_ACTIVE) &&
5877             IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
5878                 sc->bce_link++;
5879                 /* Now that link is up, handle any outstanding TX traffic. */
5880                 if (!ifq_is_empty(&ifp->if_snd))
5881                         if_devstart(ifp);
5882         }
5883 }
5884
5885
5886 static void
5887 bce_tick(void *xsc)
5888 {
5889         struct bce_softc *sc = xsc;
5890         struct ifnet *ifp = &sc->arpcom.ac_if;
5891
5892         lwkt_serialize_enter(ifp->if_serializer);
5893         bce_tick_serialized(sc);
5894         lwkt_serialize_exit(ifp->if_serializer);
5895 }
5896
5897
5898 #ifdef BCE_DEBUG
5899 /****************************************************************************/
5900 /* Allows the driver state to be dumped through the sysctl interface.       */
5901 /*                                                                          */
5902 /* Returns:                                                                 */
5903 /*   0 for success, positive value for failure.                             */
5904 /****************************************************************************/
5905 static int
5906 bce_sysctl_driver_state(SYSCTL_HANDLER_ARGS)
5907 {
5908         int error;
5909         int result;
5910         struct bce_softc *sc;
5911
5912         result = -1;
5913         error = sysctl_handle_int(oidp, &result, 0, req);
5914
5915         if (error || !req->newptr)
5916                 return (error);
5917
5918         if (result == 1) {
5919                 sc = (struct bce_softc *)arg1;
5920                 bce_dump_driver_state(sc);
5921         }
5922
5923         return error;
5924 }
5925
5926
5927 /****************************************************************************/
5928 /* Allows the hardware state to be dumped through the sysctl interface.     */
5929 /*                                                                          */
5930 /* Returns:                                                                 */
5931 /*   0 for success, positive value for failure.                             */
5932 /****************************************************************************/
5933 static int
5934 bce_sysctl_hw_state(SYSCTL_HANDLER_ARGS)
5935 {
5936         int error;
5937         int result;
5938         struct bce_softc *sc;
5939
5940         result = -1;
5941         error = sysctl_handle_int(oidp, &result, 0, req);
5942
5943         if (error || !req->newptr)
5944                 return (error);
5945
5946         if (result == 1) {
5947                 sc = (struct bce_softc *)arg1;
5948                 bce_dump_hw_state(sc);
5949         }
5950
5951         return error;
5952 }
5953
5954
5955 /****************************************************************************/
5956 /* Provides a sysctl interface to allows dumping the RX chain.              */
5957 /*                                                                          */
5958 /* Returns:                                                                 */
5959 /*   0 for success, positive value for failure.                             */
5960 /****************************************************************************/
5961 static int
5962 bce_sysctl_dump_rx_chain(SYSCTL_HANDLER_ARGS)
5963 {
5964         int error;
5965         int result;
5966         struct bce_softc *sc;
5967
5968         result = -1;
5969         error = sysctl_handle_int(oidp, &result, 0, req);
5970
5971         if (error || !req->newptr)
5972                 return (error);
5973
5974         if (result == 1) {
5975                 sc = (struct bce_softc *)arg1;
5976                 bce_dump_rx_chain(sc, 0, USABLE_RX_BD(sc));
5977         }
5978
5979         return error;
5980 }
5981
5982
5983 /****************************************************************************/
5984 /* Provides a sysctl interface to allows dumping the TX chain.              */
5985 /*                                                                          */
5986 /* Returns:                                                                 */
5987 /*   0 for success, positive value for failure.                             */
5988 /****************************************************************************/
5989 static int
5990 bce_sysctl_dump_tx_chain(SYSCTL_HANDLER_ARGS)
5991 {
5992         int error;
5993         int result;
5994         struct bce_softc *sc;
5995
5996         result = -1;
5997         error = sysctl_handle_int(oidp, &result, 0, req);
5998
5999         if (error || !req->newptr)
6000                 return (error);
6001
6002         if (result == 1) {
6003                 sc = (struct bce_softc *)arg1;
6004                 bce_dump_tx_chain(sc, 0, USABLE_TX_BD(sc));
6005         }
6006
6007         return error;
6008 }
6009
6010
6011 /****************************************************************************/
6012 /* Provides a sysctl interface to allow reading arbitrary registers in the  */
6013 /* device.  DO NOT ENABLE ON PRODUCTION SYSTEMS!                            */
6014 /*                                                                          */
6015 /* Returns:                                                                 */
6016 /*   0 for success, positive value for failure.                             */
6017 /****************************************************************************/
6018 static int
6019 bce_sysctl_reg_read(SYSCTL_HANDLER_ARGS)
6020 {
6021         struct bce_softc *sc;
6022         int error;
6023         uint32_t val, result;
6024
6025         result = -1;
6026         error = sysctl_handle_int(oidp, &result, 0, req);
6027         if (error || (req->newptr == NULL))
6028                 return (error);
6029
6030         /* Make sure the register is accessible. */
6031         if (result < 0x8000) {
6032                 sc = (struct bce_softc *)arg1;
6033                 val = REG_RD(sc, result);
6034                 if_printf(&sc->arpcom.ac_if, "reg 0x%08X = 0x%08X\n",
6035                           result, val);
6036         } else if (result < 0x0280000) {
6037                 sc = (struct bce_softc *)arg1;
6038                 val = REG_RD_IND(sc, result);
6039                 if_printf(&sc->arpcom.ac_if, "reg 0x%08X = 0x%08X\n",
6040                           result, val);
6041         }
6042         return (error);
6043 }
6044
6045
6046 /****************************************************************************/
6047 /* Provides a sysctl interface to allow reading arbitrary PHY registers in  */
6048 /* the device.  DO NOT ENABLE ON PRODUCTION SYSTEMS!                        */
6049 /*                                                                          */
6050 /* Returns:                                                                 */
6051 /*   0 for success, positive value for failure.                             */
6052 /****************************************************************************/
6053 static int
6054 bce_sysctl_phy_read(SYSCTL_HANDLER_ARGS)
6055 {
6056         struct bce_softc *sc;
6057         device_t dev;
6058         int error, result;
6059         uint16_t val;
6060
6061         result = -1;
6062         error = sysctl_handle_int(oidp, &result, 0, req);
6063         if (error || (req->newptr == NULL))
6064                 return (error);
6065
6066         /* Make sure the register is accessible. */
6067         if (result < 0x20) {
6068                 sc = (struct bce_softc *)arg1;
6069                 dev = sc->bce_dev;
6070                 val = bce_miibus_read_reg(dev, sc->bce_phy_addr, result);
6071                 if_printf(&sc->arpcom.ac_if,
6072                           "phy 0x%02X = 0x%04X\n", result, val);
6073         }
6074         return (error);
6075 }
6076
6077
6078 /****************************************************************************/
6079 /* Provides a sysctl interface to forcing the driver to dump state and      */
6080 /* enter the debugger.  DO NOT ENABLE ON PRODUCTION SYSTEMS!                */
6081 /*                                                                          */
6082 /* Returns:                                                                 */
6083 /*   0 for success, positive value for failure.                             */
6084 /****************************************************************************/
6085 static int
6086 bce_sysctl_breakpoint(SYSCTL_HANDLER_ARGS)
6087 {
6088         int error;
6089         int result;
6090         struct bce_softc *sc;
6091
6092         result = -1;
6093         error = sysctl_handle_int(oidp, &result, 0, req);
6094
6095         if (error || !req->newptr)
6096                 return (error);
6097
6098         if (result == 1) {
6099                 sc = (struct bce_softc *)arg1;
6100                 bce_breakpoint(sc);
6101         }
6102
6103         return error;
6104 }
6105 #endif
6106
6107
6108 /****************************************************************************/
6109 /* Adds any sysctl parameters for tuning or debugging purposes.             */
6110 /*                                                                          */
6111 /* Returns:                                                                 */
6112 /*   0 for success, positive value for failure.                             */
6113 /****************************************************************************/
6114 static void
6115 bce_add_sysctls(struct bce_softc *sc)
6116 {
6117         struct sysctl_ctx_list *ctx;
6118         struct sysctl_oid_list *children;
6119
6120         sysctl_ctx_init(&sc->bce_sysctl_ctx);
6121         sc->bce_sysctl_tree = SYSCTL_ADD_NODE(&sc->bce_sysctl_ctx,
6122                                               SYSCTL_STATIC_CHILDREN(_hw),
6123                                               OID_AUTO,
6124                                               device_get_nameunit(sc->bce_dev),
6125                                               CTLFLAG_RD, 0, "");
6126         if (sc->bce_sysctl_tree == NULL) {
6127                 device_printf(sc->bce_dev, "can't add sysctl node\n");
6128                 return;
6129         }
6130
6131         ctx = &sc->bce_sysctl_ctx;
6132         children = SYSCTL_CHILDREN(sc->bce_sysctl_tree);
6133
6134         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_bds_int",
6135                         CTLTYPE_INT | CTLFLAG_RW,
6136                         sc, 0, bce_sysctl_tx_bds_int, "I",
6137                         "Send max coalesced BD count during interrupt");
6138         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_bds",
6139                         CTLTYPE_INT | CTLFLAG_RW,
6140                         sc, 0, bce_sysctl_tx_bds, "I",
6141                         "Send max coalesced BD count");
6142         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_ticks_int",
6143                         CTLTYPE_INT | CTLFLAG_RW,
6144                         sc, 0, bce_sysctl_tx_ticks_int, "I",
6145                         "Send coalescing ticks during interrupt");
6146         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "tx_ticks",
6147                         CTLTYPE_INT | CTLFLAG_RW,
6148                         sc, 0, bce_sysctl_tx_ticks, "I",
6149                         "Send coalescing ticks");
6150
6151         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_bds_int",
6152                         CTLTYPE_INT | CTLFLAG_RW,
6153                         sc, 0, bce_sysctl_rx_bds_int, "I",
6154                         "Receive max coalesced BD count during interrupt");
6155         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_bds",
6156                         CTLTYPE_INT | CTLFLAG_RW,
6157                         sc, 0, bce_sysctl_rx_bds, "I",
6158                         "Receive max coalesced BD count");
6159         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_ticks_int",
6160                         CTLTYPE_INT | CTLFLAG_RW,
6161                         sc, 0, bce_sysctl_rx_ticks_int, "I",
6162                         "Receive coalescing ticks during interrupt");
6163         SYSCTL_ADD_PROC(ctx, children, OID_AUTO, "rx_ticks",
6164                         CTLTYPE_INT | CTLFLAG_RW,
6165                         sc, 0, bce_sysctl_rx_ticks, "I",
6166                         "Receive coalescing ticks");
6167
6168         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "rx_pages",
6169                 CTLFLAG_RD, &sc->rx_pages, 0, "# of RX pages");
6170         SYSCTL_ADD_INT(ctx, children, OID_AUTO, "tx_pages",
6171                 CTLFLAG_RD, &sc->tx_pages, 0, "# of TX pages");
6172
6173 #ifdef BCE_DEBUG
6174         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6175                 "rx_low_watermark",
6176                 CTLFLAG_RD, &sc->rx_low_watermark,
6177                 0, "Lowest level of free rx_bd's");
6178
6179         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6180                 "rx_empty_count",
6181                 CTLFLAG_RD, &sc->rx_empty_count,
6182                 0, "Number of times the RX chain was empty");
6183
6184         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6185                 "tx_hi_watermark",
6186                 CTLFLAG_RD, &sc->tx_hi_watermark,
6187                 0, "Highest level of used tx_bd's");
6188
6189         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6190                 "tx_full_count",
6191                 CTLFLAG_RD, &sc->tx_full_count,
6192                 0, "Number of times the TX chain was full");
6193
6194         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6195                 "l2fhdr_status_errors",
6196                 CTLFLAG_RD, &sc->l2fhdr_status_errors,
6197                 0, "l2_fhdr status errors");
6198
6199         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6200                 "unexpected_attentions",
6201                 CTLFLAG_RD, &sc->unexpected_attentions,
6202                 0, "unexpected attentions");
6203
6204         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6205                 "lost_status_block_updates",
6206                 CTLFLAG_RD, &sc->lost_status_block_updates,
6207                 0, "lost status block updates");
6208
6209         SYSCTL_ADD_INT(ctx, children, OID_AUTO,
6210                 "mbuf_alloc_failed",
6211                 CTLFLAG_RD, &sc->mbuf_alloc_failed,
6212                 0, "mbuf cluster allocation failures");
6213 #endif
6214
6215         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6216                 "stat_IfHCInOctets",
6217                 CTLFLAG_RD, &sc->stat_IfHCInOctets,
6218                 "Bytes received");
6219
6220         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6221                 "stat_IfHCInBadOctets",
6222                 CTLFLAG_RD, &sc->stat_IfHCInBadOctets,
6223                 "Bad bytes received");
6224
6225         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6226                 "stat_IfHCOutOctets",
6227                 CTLFLAG_RD, &sc->stat_IfHCOutOctets,
6228                 "Bytes sent");
6229
6230         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6231                 "stat_IfHCOutBadOctets",
6232                 CTLFLAG_RD, &sc->stat_IfHCOutBadOctets,
6233                 "Bad bytes sent");
6234
6235         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6236                 "stat_IfHCInUcastPkts",
6237                 CTLFLAG_RD, &sc->stat_IfHCInUcastPkts,
6238                 "Unicast packets received");
6239
6240         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6241                 "stat_IfHCInMulticastPkts",
6242                 CTLFLAG_RD, &sc->stat_IfHCInMulticastPkts,
6243                 "Multicast packets received");
6244
6245         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6246                 "stat_IfHCInBroadcastPkts",
6247                 CTLFLAG_RD, &sc->stat_IfHCInBroadcastPkts,
6248                 "Broadcast packets received");
6249
6250         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6251                 "stat_IfHCOutUcastPkts",
6252                 CTLFLAG_RD, &sc->stat_IfHCOutUcastPkts,
6253                 "Unicast packets sent");
6254
6255         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6256                 "stat_IfHCOutMulticastPkts",
6257                 CTLFLAG_RD, &sc->stat_IfHCOutMulticastPkts,
6258                 "Multicast packets sent");
6259
6260         SYSCTL_ADD_ULONG(ctx, children, OID_AUTO,
6261                 "stat_IfHCOutBroadcastPkts",
6262                 CTLFLAG_RD, &sc->stat_IfHCOutBroadcastPkts,
6263                 "Broadcast packets sent");
6264
6265         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6266                 "stat_emac_tx_stat_dot3statsinternalmactransmiterrors",
6267                 CTLFLAG_RD, &sc->stat_emac_tx_stat_dot3statsinternalmactransmiterrors,
6268                 0, "Internal MAC transmit errors");
6269
6270         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6271                 "stat_Dot3StatsCarrierSenseErrors",
6272                 CTLFLAG_RD, &sc->stat_Dot3StatsCarrierSenseErrors,
6273                 0, "Carrier sense errors");
6274
6275         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6276                 "stat_Dot3StatsFCSErrors",
6277                 CTLFLAG_RD, &sc->stat_Dot3StatsFCSErrors,
6278                 0, "Frame check sequence errors");
6279
6280         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6281                 "stat_Dot3StatsAlignmentErrors",
6282                 CTLFLAG_RD, &sc->stat_Dot3StatsAlignmentErrors,
6283                 0, "Alignment errors");
6284
6285         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6286                 "stat_Dot3StatsSingleCollisionFrames",
6287                 CTLFLAG_RD, &sc->stat_Dot3StatsSingleCollisionFrames,
6288                 0, "Single Collision Frames");
6289
6290         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6291                 "stat_Dot3StatsMultipleCollisionFrames",
6292                 CTLFLAG_RD, &sc->stat_Dot3StatsMultipleCollisionFrames,
6293                 0, "Multiple Collision Frames");
6294
6295         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6296                 "stat_Dot3StatsDeferredTransmissions",
6297                 CTLFLAG_RD, &sc->stat_Dot3StatsDeferredTransmissions,
6298                 0, "Deferred Transmissions");
6299
6300         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6301                 "stat_Dot3StatsExcessiveCollisions",
6302                 CTLFLAG_RD, &sc->stat_Dot3StatsExcessiveCollisions,
6303                 0, "Excessive Collisions");
6304
6305         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6306                 "stat_Dot3StatsLateCollisions",
6307                 CTLFLAG_RD, &sc->stat_Dot3StatsLateCollisions,
6308                 0, "Late Collisions");
6309
6310         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6311                 "stat_EtherStatsCollisions",
6312                 CTLFLAG_RD, &sc->stat_EtherStatsCollisions,
6313                 0, "Collisions");
6314
6315         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6316                 "stat_EtherStatsFragments",
6317                 CTLFLAG_RD, &sc->stat_EtherStatsFragments,
6318                 0, "Fragments");
6319
6320         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6321                 "stat_EtherStatsJabbers",
6322                 CTLFLAG_RD, &sc->stat_EtherStatsJabbers,
6323                 0, "Jabbers");
6324
6325         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6326                 "stat_EtherStatsUndersizePkts",
6327                 CTLFLAG_RD, &sc->stat_EtherStatsUndersizePkts,
6328                 0, "Undersize packets");
6329
6330         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6331                 "stat_EtherStatsOverrsizePkts",
6332                 CTLFLAG_RD, &sc->stat_EtherStatsOverrsizePkts,
6333                 0, "stat_EtherStatsOverrsizePkts");
6334
6335         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6336                 "stat_EtherStatsPktsRx64Octets",
6337                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx64Octets,
6338                 0, "Bytes received in 64 byte packets");
6339
6340         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6341                 "stat_EtherStatsPktsRx65Octetsto127Octets",
6342                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx65Octetsto127Octets,
6343                 0, "Bytes received in 65 to 127 byte packets");
6344
6345         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6346                 "stat_EtherStatsPktsRx128Octetsto255Octets",
6347                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx128Octetsto255Octets,
6348                 0, "Bytes received in 128 to 255 byte packets");
6349
6350         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6351                 "stat_EtherStatsPktsRx256Octetsto511Octets",
6352                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx256Octetsto511Octets,
6353                 0, "Bytes received in 256 to 511 byte packets");
6354
6355         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6356                 "stat_EtherStatsPktsRx512Octetsto1023Octets",
6357                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx512Octetsto1023Octets,
6358                 0, "Bytes received in 512 to 1023 byte packets");
6359
6360         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6361                 "stat_EtherStatsPktsRx1024Octetsto1522Octets",
6362                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx1024Octetsto1522Octets,
6363                 0, "Bytes received in 1024 t0 1522 byte packets");
6364
6365         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6366                 "stat_EtherStatsPktsRx1523Octetsto9022Octets",
6367                 CTLFLAG_RD, &sc->stat_EtherStatsPktsRx1523Octetsto9022Octets,
6368                 0, "Bytes received in 1523 to 9022 byte packets");
6369
6370         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6371                 "stat_EtherStatsPktsTx64Octets",
6372                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx64Octets,
6373                 0, "Bytes sent in 64 byte packets");
6374
6375         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6376                 "stat_EtherStatsPktsTx65Octetsto127Octets",
6377                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx65Octetsto127Octets,
6378                 0, "Bytes sent in 65 to 127 byte packets");
6379
6380         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6381                 "stat_EtherStatsPktsTx128Octetsto255Octets",
6382                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx128Octetsto255Octets,
6383                 0, "Bytes sent in 128 to 255 byte packets");
6384
6385         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6386                 "stat_EtherStatsPktsTx256Octetsto511Octets",
6387                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx256Octetsto511Octets,
6388                 0, "Bytes sent in 256 to 511 byte packets");
6389
6390         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6391                 "stat_EtherStatsPktsTx512Octetsto1023Octets",
6392                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx512Octetsto1023Octets,
6393                 0, "Bytes sent in 512 to 1023 byte packets");
6394
6395         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6396                 "stat_EtherStatsPktsTx1024Octetsto1522Octets",
6397                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx1024Octetsto1522Octets,
6398                 0, "Bytes sent in 1024 to 1522 byte packets");
6399
6400         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6401                 "stat_EtherStatsPktsTx1523Octetsto9022Octets",
6402                 CTLFLAG_RD, &sc->stat_EtherStatsPktsTx1523Octetsto9022Octets,
6403                 0, "Bytes sent in 1523 to 9022 byte packets");
6404
6405         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6406                 "stat_XonPauseFramesReceived",
6407                 CTLFLAG_RD, &sc->stat_XonPauseFramesReceived,
6408                 0, "XON pause frames receved");
6409
6410         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6411                 "stat_XoffPauseFramesReceived",
6412                 CTLFLAG_RD, &sc->stat_XoffPauseFramesReceived,
6413                 0, "XOFF pause frames received");
6414
6415         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6416                 "stat_OutXonSent",
6417                 CTLFLAG_RD, &sc->stat_OutXonSent,
6418                 0, "XON pause frames sent");
6419
6420         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6421                 "stat_OutXoffSent",
6422                 CTLFLAG_RD, &sc->stat_OutXoffSent,
6423                 0, "XOFF pause frames sent");
6424
6425         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6426                 "stat_FlowControlDone",
6427                 CTLFLAG_RD, &sc->stat_FlowControlDone,
6428                 0, "Flow control done");
6429
6430         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6431                 "stat_MacControlFramesReceived",
6432                 CTLFLAG_RD, &sc->stat_MacControlFramesReceived,
6433                 0, "MAC control frames received");
6434
6435         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6436                 "stat_XoffStateEntered",
6437                 CTLFLAG_RD, &sc->stat_XoffStateEntered,
6438                 0, "XOFF state entered");
6439
6440         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6441                 "stat_IfInFramesL2FilterDiscards",
6442                 CTLFLAG_RD, &sc->stat_IfInFramesL2FilterDiscards,
6443                 0, "Received L2 packets discarded");
6444
6445         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6446                 "stat_IfInRuleCheckerDiscards",
6447                 CTLFLAG_RD, &sc->stat_IfInRuleCheckerDiscards,
6448                 0, "Received packets discarded by rule");
6449
6450         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6451                 "stat_IfInFTQDiscards",
6452                 CTLFLAG_RD, &sc->stat_IfInFTQDiscards,
6453                 0, "Received packet FTQ discards");
6454
6455         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6456                 "stat_IfInMBUFDiscards",
6457                 CTLFLAG_RD, &sc->stat_IfInMBUFDiscards,
6458                 0, "Received packets discarded due to lack of controller buffer memory");
6459
6460         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6461                 "stat_IfInRuleCheckerP4Hit",
6462                 CTLFLAG_RD, &sc->stat_IfInRuleCheckerP4Hit,
6463                 0, "Received packets rule checker hits");
6464
6465         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6466                 "stat_CatchupInRuleCheckerDiscards",
6467                 CTLFLAG_RD, &sc->stat_CatchupInRuleCheckerDiscards,
6468                 0, "Received packets discarded in Catchup path");
6469
6470         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6471                 "stat_CatchupInFTQDiscards",
6472                 CTLFLAG_RD, &sc->stat_CatchupInFTQDiscards,
6473                 0, "Received packets discarded in FTQ in Catchup path");
6474
6475         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6476                 "stat_CatchupInMBUFDiscards",
6477                 CTLFLAG_RD, &sc->stat_CatchupInMBUFDiscards,
6478                 0, "Received packets discarded in controller buffer memory in Catchup path");
6479
6480         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6481                 "stat_CatchupInRuleCheckerP4Hit",
6482                 CTLFLAG_RD, &sc->stat_CatchupInRuleCheckerP4Hit,
6483                 0, "Received packets rule checker hits in Catchup path");
6484
6485         SYSCTL_ADD_UINT(ctx, children, OID_AUTO,
6486                 "com_no_buffers",
6487                 CTLFLAG_RD, &sc->com_no_buffers,
6488                 0, "Valid packets received but no RX buffers available");
6489
6490 #ifdef BCE_DEBUG
6491         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6492                 "driver_state", CTLTYPE_INT | CTLFLAG_RW,
6493                 (void *)sc, 0,
6494                 bce_sysctl_driver_state, "I", "Drive state information");
6495
6496         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6497                 "hw_state", CTLTYPE_INT | CTLFLAG_RW,
6498                 (void *)sc, 0,
6499                 bce_sysctl_hw_state, "I", "Hardware state information");
6500
6501         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6502                 "dump_rx_chain", CTLTYPE_INT | CTLFLAG_RW,
6503                 (void *)sc, 0,
6504                 bce_sysctl_dump_rx_chain, "I", "Dump rx_bd chain");
6505
6506         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6507                 "dump_tx_chain", CTLTYPE_INT | CTLFLAG_RW,
6508                 (void *)sc, 0,
6509                 bce_sysctl_dump_tx_chain, "I", "Dump tx_bd chain");
6510
6511         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6512                 "breakpoint", CTLTYPE_INT | CTLFLAG_RW,
6513                 (void *)sc, 0,
6514                 bce_sysctl_breakpoint, "I", "Driver breakpoint");
6515
6516         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6517                 "reg_read", CTLTYPE_INT | CTLFLAG_RW,
6518                 (void *)sc, 0,
6519                 bce_sysctl_reg_read, "I", "Register read");
6520
6521         SYSCTL_ADD_PROC(ctx, children, OID_AUTO,
6522                 "phy_read", CTLTYPE_INT | CTLFLAG_RW,
6523                 (void *)sc, 0,
6524                 bce_sysctl_phy_read, "I", "PHY register read");
6525
6526 #endif
6527
6528 }
6529
6530
6531 /****************************************************************************/
6532 /* BCE Debug Routines                                                       */
6533 /****************************************************************************/
6534 #ifdef BCE_DEBUG
6535
6536 /****************************************************************************/
6537 /* Freezes the controller to allow for a cohesive state dump.               */
6538 /*                                                                          */
6539 /* Returns:                                                                 */
6540 /*   Nothing.                                                               */
6541 /****************************************************************************/
6542 static void
6543 bce_freeze_controller(struct bce_softc *sc)
6544 {
6545         uint32_t val;
6546
6547         val = REG_RD(sc, BCE_MISC_COMMAND);
6548         val |= BCE_MISC_COMMAND_DISABLE_ALL;
6549         REG_WR(sc, BCE_MISC_COMMAND, val);
6550 }
6551
6552
6553 /****************************************************************************/
6554 /* Unfreezes the controller after a freeze operation.  This may not always  */
6555 /* work and the controller will require a reset!                            */
6556 /*                                                                          */
6557 /* Returns:                                                                 */
6558 /*   Nothing.                                                               */
6559 /****************************************************************************/
6560 static void
6561 bce_unfreeze_controller(struct bce_softc *sc)
6562 {
6563         uint32_t val;
6564
6565         val = REG_RD(sc, BCE_MISC_COMMAND);
6566         val |= BCE_MISC_COMMAND_ENABLE_ALL;
6567         REG_WR(sc, BCE_MISC_COMMAND, val);
6568 }
6569
6570
6571 /****************************************************************************/
6572 /* Prints out information about an mbuf.                                    */
6573 /*                                                                          */
6574 /* Returns:                                                                 */
6575 /*   Nothing.                                                               */
6576 /****************************************************************************/
6577 static void
6578 bce_dump_mbuf(struct bce_softc *sc, struct mbuf *m)
6579 {
6580         struct ifnet *ifp = &sc->arpcom.ac_if;
6581         uint32_t val_hi, val_lo;
6582         struct mbuf *mp = m;
6583
6584         if (m == NULL) {
6585                 /* Index out of range. */
6586                 if_printf(ifp, "mbuf: null pointer\n");
6587                 return;
6588         }
6589
6590         while (mp) {
6591                 val_hi = BCE_ADDR_HI(mp);
6592                 val_lo = BCE_ADDR_LO(mp);
6593                 if_printf(ifp, "mbuf: vaddr = 0x%08X:%08X, m_len = %d, "
6594                           "m_flags = ( ", val_hi, val_lo, mp->m_len);
6595
6596                 if (mp->m_flags & M_EXT)
6597                         kprintf("M_EXT ");
6598                 if (mp->m_flags & M_PKTHDR)
6599                         kprintf("M_PKTHDR ");
6600                 if (mp->m_flags & M_EOR)
6601                         kprintf("M_EOR ");
6602 #ifdef M_RDONLY
6603                 if (mp->m_flags & M_RDONLY)
6604                         kprintf("M_RDONLY ");
6605 #endif
6606
6607                 val_hi = BCE_ADDR_HI(mp->m_data);
6608                 val_lo = BCE_ADDR_LO(mp->m_data);
6609                 kprintf(") m_data = 0x%08X:%08X\n", val_hi, val_lo);
6610
6611                 if (mp->m_flags & M_PKTHDR) {
6612                         if_printf(ifp, "- m_pkthdr: flags = ( ");
6613                         if (mp->m_flags & M_BCAST)
6614                                 kprintf("M_BCAST ");
6615                         if (mp->m_flags & M_MCAST)
6616                                 kprintf("M_MCAST ");
6617                         if (mp->m_flags & M_FRAG)
6618                                 kprintf("M_FRAG ");
6619                         if (mp->m_flags & M_FIRSTFRAG)
6620                                 kprintf("M_FIRSTFRAG ");
6621                         if (mp->m_flags & M_LASTFRAG)
6622                                 kprintf("M_LASTFRAG ");
6623 #ifdef M_VLANTAG
6624                         if (mp->m_flags & M_VLANTAG)
6625                                 kprintf("M_VLANTAG ");
6626 #endif
6627 #ifdef M_PROMISC
6628                         if (mp->m_flags & M_PROMISC)
6629                                 kprintf("M_PROMISC ");
6630 #endif
6631                         kprintf(") csum_flags = ( ");
6632                         if (mp->m_pkthdr.csum_flags & CSUM_IP)
6633                                 kprintf("CSUM_IP ");
6634                         if (mp->m_pkthdr.csum_flags & CSUM_TCP)
6635                                 kprintf("CSUM_TCP ");
6636                         if (mp->m_pkthdr.csum_flags & CSUM_UDP)
6637                                 kprintf("CSUM_UDP ");
6638                         if (mp->m_pkthdr.csum_flags & CSUM_IP_FRAGS)
6639                                 kprintf("CSUM_IP_FRAGS ");
6640                         if (mp->m_pkthdr.csum_flags & CSUM_FRAGMENT)
6641                                 kprintf("CSUM_FRAGMENT ");
6642 #ifdef CSUM_TSO
6643                         if (mp->m_pkthdr.csum_flags & CSUM_TSO)
6644                                 kprintf("CSUM_TSO ");
6645 #endif
6646                         if (mp->m_pkthdr.csum_flags & CSUM_IP_CHECKED)
6647                                 kprintf("CSUM_IP_CHECKED ");
6648                         if (mp->m_pkthdr.csum_flags & CSUM_IP_VALID)
6649                                 kprintf("CSUM_IP_VALID ");
6650                         if (mp->m_pkthdr.csum_flags & CSUM_DATA_VALID)
6651                                 kprintf("CSUM_DATA_VALID ");
6652                         kprintf(")\n");
6653                 }
6654
6655                 if (mp->m_flags & M_EXT) {
6656                         val_hi = BCE_ADDR_HI(mp->m_ext.ext_buf);
6657                         val_lo = BCE_ADDR_LO(mp->m_ext.ext_buf);
6658                         if_printf(ifp, "- m_ext: vaddr = 0x%08X:%08X, "
6659                                   "ext_size = %d\n",
6660                                   val_hi, val_lo, mp->m_ext.ext_size);
6661                 }
6662                 mp = mp->m_next;
6663         }
6664 }
6665
6666
6667 /****************************************************************************/
6668 /* Prints out the mbufs in the TX mbuf chain.                               */
6669 /*                                                                          */
6670 /* Returns:                                                                 */
6671 /*   Nothing.                                                               */
6672 /****************************************************************************/
6673 static void
6674 bce_dump_tx_mbuf_chain(struct bce_softc *sc, int chain_prod, int count)
6675 {
6676         struct ifnet *ifp = &sc->arpcom.ac_if;
6677         int i;
6678
6679         if_printf(ifp,
6680         "----------------------------"
6681         "  tx mbuf data  "
6682         "----------------------------\n");
6683
6684         for (i = 0; i < count; i++) {
6685                 if_printf(ifp, "txmbuf[%d]\n", chain_prod);
6686                 bce_dump_mbuf(sc, sc->tx_mbuf_ptr[chain_prod]);
6687                 chain_prod = TX_CHAIN_IDX(sc, NEXT_TX_BD(chain_prod));
6688         }
6689
6690         if_printf(ifp,
6691         "----------------------------"
6692         "----------------"
6693         "----------------------------\n");
6694 }
6695
6696
6697 /****************************************************************************/
6698 /* Prints out the mbufs in the RX mbuf chain.                               */
6699 /*                                                                          */
6700 /* Returns:                                                                 */
6701 /*   Nothing.                                                               */
6702 /****************************************************************************/
6703 static void
6704 bce_dump_rx_mbuf_chain(struct bce_softc *sc, int chain_prod, int count)
6705 {
6706         struct ifnet *ifp = &sc->arpcom.ac_if;
6707         int i;
6708
6709         if_printf(ifp,
6710         "----------------------------"
6711         "  rx mbuf data  "
6712         "----------------------------\n");
6713
6714         for (i = 0; i < count; i++) {
6715                 if_printf(ifp, "rxmbuf[0x%04X]\n", chain_prod);
6716                 bce_dump_mbuf(sc, sc->rx_mbuf_ptr[chain_prod]);
6717                 chain_prod = RX_CHAIN_IDX(sc, NEXT_RX_BD(chain_prod));
6718         }
6719
6720         if_printf(ifp,
6721         "----------------------------"
6722         "----------------"
6723         "----------------------------\n");
6724 }
6725
6726
6727 /****************************************************************************/
6728 /* Prints out a tx_bd structure.                                            */
6729 /*                                                                          */
6730 /* Returns:                                                                 */
6731 /*   Nothing.                                                               */
6732 /****************************************************************************/
6733 static void
6734 bce_dump_txbd(struct bce_softc *sc, int idx, struct tx_bd *txbd)
6735 {
6736         struct ifnet *ifp = &sc->arpcom.ac_if;
6737
6738         if (idx > MAX_TX_BD(sc)) {
6739                 /* Index out of range. */
6740                 if_printf(ifp, "tx_bd[0x%04X]: Invalid tx_bd index!\n", idx);
6741         } else if ((idx & USABLE_TX_BD_PER_PAGE) == USABLE_TX_BD_PER_PAGE) {
6742                 /* TX Chain page pointer. */
6743                 if_printf(ifp, "tx_bd[0x%04X]: haddr = 0x%08X:%08X, "
6744                           "chain page pointer\n",
6745                           idx, txbd->tx_bd_haddr_hi, txbd->tx_bd_haddr_lo);
6746         } else {
6747                 /* Normal tx_bd entry. */
6748                 if_printf(ifp, "tx_bd[0x%04X]: haddr = 0x%08X:%08X, "
6749                           "nbytes = 0x%08X, "
6750                           "vlan tag= 0x%04X, flags = 0x%04X (",
6751                           idx, txbd->tx_bd_haddr_hi, txbd->tx_bd_haddr_lo,
6752                           txbd->tx_bd_mss_nbytes,
6753                           txbd->tx_bd_vlan_tag, txbd->tx_bd_flags);
6754
6755                 if (txbd->tx_bd_flags & TX_BD_FLAGS_CONN_FAULT)
6756                         kprintf(" CONN_FAULT");
6757
6758                 if (txbd->tx_bd_flags & TX_BD_FLAGS_TCP_UDP_CKSUM)
6759                         kprintf(" TCP_UDP_CKSUM");
6760
6761                 if (txbd->tx_bd_flags & TX_BD_FLAGS_IP_CKSUM)
6762                         kprintf(" IP_CKSUM");
6763
6764                 if (txbd->tx_bd_flags & TX_BD_FLAGS_VLAN_TAG)
6765                         kprintf("  VLAN");
6766
6767                 if (txbd->tx_bd_flags & TX_BD_FLAGS_COAL_NOW)
6768                         kprintf(" COAL_NOW");
6769
6770                 if (txbd->tx_bd_flags & TX_BD_FLAGS_DONT_GEN_CRC)
6771                         kprintf(" DONT_GEN_CRC");
6772
6773                 if (txbd->tx_bd_flags & TX_BD_FLAGS_START)
6774                         kprintf(" START");
6775
6776                 if (txbd->tx_bd_flags & TX_BD_FLAGS_END)
6777                         kprintf(" END");
6778
6779                 if (txbd->tx_bd_flags & TX_BD_FLAGS_SW_LSO)
6780                         kprintf(" LSO");
6781
6782                 if (txbd->tx_bd_flags & TX_BD_FLAGS_SW_OPTION_WORD)
6783                         kprintf(" OPTION_WORD");
6784
6785                 if (txbd->tx_bd_flags & TX_BD_FLAGS_SW_FLAGS)
6786                         kprintf(" FLAGS");
6787
6788                 if (txbd->tx_bd_flags & TX_BD_FLAGS_SW_SNAP)
6789                         kprintf(" SNAP");
6790
6791                 kprintf(" )\n");
6792         }
6793 }
6794
6795
6796 /****************************************************************************/
6797 /* Prints out a rx_bd structure.                                            */
6798 /*                                                                          */
6799 /* Returns:                                                                 */
6800 /*   Nothing.                                                               */
6801 /****************************************************************************/
6802 static void
6803 bce_dump_rxbd(struct bce_softc *sc, int idx, struct rx_bd *rxbd)
6804 {
6805         struct ifnet *ifp = &sc->arpcom.ac_if;
6806
6807         if (idx > MAX_RX_BD(sc)) {
6808                 /* Index out of range. */
6809                 if_printf(ifp, "rx_bd[0x%04X]: Invalid rx_bd index!\n", idx);
6810         } else if ((idx & USABLE_RX_BD_PER_PAGE) == USABLE_RX_BD_PER_PAGE) {
6811                 /* TX Chain page pointer. */
6812                 if_printf(ifp, "rx_bd[0x%04X]: haddr = 0x%08X:%08X, "
6813                           "chain page pointer\n",
6814                           idx, rxbd->rx_bd_haddr_hi, rxbd->rx_bd_haddr_lo);
6815         } else {
6816                 /* Normal tx_bd entry. */
6817                 if_printf(ifp, "rx_bd[0x%04X]: haddr = 0x%08X:%08X, "
6818                           "nbytes = 0x%08X, flags = 0x%08X\n",
6819                           idx, rxbd->rx_bd_haddr_hi, rxbd->rx_bd_haddr_lo,
6820                           rxbd->rx_bd_len, rxbd->rx_bd_flags);
6821         }
6822 }
6823
6824
6825 /****************************************************************************/
6826 /* Prints out a l2_fhdr structure.                                          */
6827 /*                                                                          */
6828 /* Returns:                                                                 */
6829 /*   Nothing.                                                               */
6830 /****************************************************************************/
6831 static void
6832 bce_dump_l2fhdr(struct bce_softc *sc, int idx, struct l2_fhdr *l2fhdr)
6833 {
6834         if_printf(&sc->arpcom.ac_if, "l2_fhdr[0x%04X]: status = 0x%08X, "
6835                   "pkt_len = 0x%04X, vlan = 0x%04x, "
6836                   "ip_xsum = 0x%04X, tcp_udp_xsum = 0x%04X\n",
6837                   idx, l2fhdr->l2_fhdr_status,
6838                   l2fhdr->l2_fhdr_pkt_len, l2fhdr->l2_fhdr_vlan_tag,
6839                   l2fhdr->l2_fhdr_ip_xsum, l2fhdr->l2_fhdr_tcp_udp_xsum);
6840 }
6841
6842
6843 /****************************************************************************/
6844 /* Prints out the tx chain.                                                 */
6845 /*                                                                          */
6846 /* Returns:                                                                 */
6847 /*   Nothing.                                                               */
6848 /****************************************************************************/
6849 static void
6850 bce_dump_tx_chain(struct bce_softc *sc, int tx_prod, int count)
6851 {
6852         struct ifnet *ifp = &sc->arpcom.ac_if;
6853         int i;
6854
6855         /* First some info about the tx_bd chain structure. */
6856         if_printf(ifp,
6857         "----------------------------"
6858         "  tx_bd  chain  "
6859         "----------------------------\n");
6860
6861         if_printf(ifp, "page size      = 0x%08X, "
6862                   "tx chain pages        = 0x%08X\n",
6863                   (uint32_t)BCM_PAGE_SIZE, (uint32_t)sc->tx_pages);
6864
6865         if_printf(ifp, "tx_bd per page = 0x%08X, "
6866                   "usable tx_bd per page = 0x%08X\n",
6867                   (uint32_t)TOTAL_TX_BD_PER_PAGE,
6868                   (uint32_t)USABLE_TX_BD_PER_PAGE);
6869
6870         if_printf(ifp, "total tx_bd    = 0x%08X\n", (uint32_t)TOTAL_TX_BD(sc));
6871
6872         if_printf(ifp,
6873         "----------------------------"
6874         "  tx_bd data    "
6875         "----------------------------\n");
6876
6877         /* Now print out the tx_bd's themselves. */
6878         for (i = 0; i < count; i++) {
6879                 struct tx_bd *txbd;
6880
6881                 txbd = &sc->tx_bd_chain[TX_PAGE(tx_prod)][TX_IDX(tx_prod)];
6882                 bce_dump_txbd(sc, tx_prod, txbd);
6883                 tx_prod = TX_CHAIN_IDX(sc, NEXT_TX_BD(tx_prod));
6884         }
6885
6886         if_printf(ifp,
6887         "----------------------------"
6888         "----------------"
6889         "----------------------------\n");
6890 }
6891
6892
6893 /****************************************************************************/
6894 /* Prints out the rx chain.                                                 */
6895 /*                                                                          */
6896 /* Returns:                                                                 */
6897 /*   Nothing.                                                               */
6898 /****************************************************************************/
6899 static void
6900 bce_dump_rx_chain(struct bce_softc *sc, int rx_prod, int count)
6901 {
6902         struct ifnet *ifp = &sc->arpcom.ac_if;
6903         int i;
6904
6905         /* First some info about the tx_bd chain structure. */
6906         if_printf(ifp,
6907         "----------------------------"
6908         "  rx_bd  chain  "
6909         "----------------------------\n");
6910
6911         if_printf(ifp, "page size      = 0x%08X, "
6912                   "rx chain pages        = 0x%08X\n",
6913                   (uint32_t)BCM_PAGE_SIZE, (uint32_t)sc->rx_pages);
6914
6915         if_printf(ifp, "rx_bd per page = 0x%08X, "
6916                   "usable rx_bd per page = 0x%08X\n",
6917                   (uint32_t)TOTAL_RX_BD_PER_PAGE,
6918                   (uint32_t)USABLE_RX_BD_PER_PAGE);
6919
6920         if_printf(ifp, "total rx_bd    = 0x%08X\n", (uint32_t)TOTAL_RX_BD(sc));
6921
6922         if_printf(ifp,
6923         "----------------------------"
6924         "   rx_bd data   "
6925         "----------------------------\n");
6926
6927         /* Now print out the rx_bd's themselves. */
6928         for (i = 0; i < count; i++) {
6929                 struct rx_bd *rxbd;
6930
6931                 rxbd = &sc->rx_bd_chain[RX_PAGE(rx_prod)][RX_IDX(rx_prod)];
6932                 bce_dump_rxbd(sc, rx_prod, rxbd);
6933                 rx_prod = RX_CHAIN_IDX(sc, NEXT_RX_BD(rx_prod));
6934         }
6935
6936         if_printf(ifp,
6937         "----------------------------"
6938         "----------------"
6939         "----------------------------\n");
6940 }
6941
6942
6943 /****************************************************************************/
6944 /* Prints out the status block from host memory.                            */
6945 /*                                                                          */
6946 /* Returns:                                                                 */
6947 /*   Nothing.                                                               */
6948 /****************************************************************************/
6949 static void
6950 bce_dump_status_block(struct bce_softc *sc)
6951 {
6952         struct status_block *sblk = sc->status_block;
6953         struct ifnet *ifp = &sc->arpcom.ac_if;
6954
6955         if_printf(ifp,
6956         "----------------------------"
6957         "  Status Block  "
6958         "----------------------------\n");
6959
6960         if_printf(ifp, "    0x%08X - attn_bits\n", sblk->status_attn_bits);
6961
6962         if_printf(ifp, "    0x%08X - attn_bits_ack\n",
6963                   sblk->status_attn_bits_ack);
6964
6965         if_printf(ifp, "0x%04X(0x%04X) - rx_cons0\n",
6966             sblk->status_rx_quick_consumer_index0,
6967             (uint16_t)RX_CHAIN_IDX(sc, sblk->status_rx_quick_consumer_index0));
6968
6969         if_printf(ifp, "0x%04X(0x%04X) - tx_cons0\n",
6970             sblk->status_tx_quick_consumer_index0,
6971             (uint16_t)TX_CHAIN_IDX(sc, sblk->status_tx_quick_consumer_index0));
6972
6973         if_printf(ifp, "        0x%04X - status_idx\n", sblk->status_idx);
6974
6975         /* Theses indices are not used for normal L2 drivers. */
6976         if (sblk->status_rx_quick_consumer_index1) {
6977                 if_printf(ifp, "0x%04X(0x%04X) - rx_cons1\n",
6978                 sblk->status_rx_quick_consumer_index1,
6979                 (uint16_t)RX_CHAIN_IDX(sc,
6980                     sblk->status_rx_quick_consumer_index1));
6981         }
6982
6983         if (sblk->status_tx_quick_consumer_index1) {
6984                 if_printf(ifp, "0x%04X(0x%04X) - tx_cons1\n",
6985                 sblk->status_tx_quick_consumer_index1,
6986                 (uint16_t)TX_CHAIN_IDX(sc,
6987                     sblk->status_tx_quick_consumer_index1));
6988         }
6989
6990         if (sblk->status_rx_quick_consumer_index2) {
6991                 if_printf(ifp, "0x%04X(0x%04X)- rx_cons2\n",
6992                 sblk->status_rx_quick_consumer_index2,
6993                 (uint16_t)RX_CHAIN_IDX(sc,
6994                     sblk->status_rx_quick_consumer_index2));
6995         }
6996
6997         if (sblk->status_tx_quick_consumer_index2) {
6998                 if_printf(ifp, "0x%04X(0x%04X) - tx_cons2\n",
6999                 sblk->status_tx_quick_consumer_index2,
7000                 (uint16_t)TX_CHAIN_IDX(sc,
7001                     sblk->status_tx_quick_consumer_index2));
7002         }
7003
7004         if (sblk->status_rx_quick_consumer_index3) {
7005                 if_printf(ifp, "0x%04X(0x%04X) - rx_cons3\n",
7006                 sblk->status_rx_quick_consumer_index3,
7007                 (uint16_t)RX_CHAIN_IDX(sc,
7008                     sblk->status_rx_quick_consumer_index3));
7009         }
7010
7011         if (sblk->status_tx_quick_consumer_index3) {
7012                 if_printf(ifp, "0x%04X(0x%04X) - tx_cons3\n",
7013                 sblk->status_tx_quick_consumer_index3,
7014                 (uint16_t)TX_CHAIN_IDX(sc,
7015                     sblk->status_tx_quick_consumer_index3));
7016         }
7017
7018         if (sblk->status_rx_quick_consumer_index4 ||
7019             sblk->status_rx_quick_consumer_index5) {
7020                 if_printf(ifp, "rx_cons4  = 0x%08X, rx_cons5      = 0x%08X\n",
7021                           sblk->status_rx_quick_consumer_index4,
7022                           sblk->status_rx_quick_consumer_index5);
7023         }
7024
7025         if (sblk->status_rx_quick_consumer_index6 ||
7026             sblk->status_rx_quick_consumer_index7) {
7027                 if_printf(ifp, "rx_cons6  = 0x%08X, rx_cons7      = 0x%08X\n",
7028                           sblk->status_rx_quick_consumer_index6,
7029                           sblk->status_rx_quick_consumer_index7);
7030         }
7031
7032         if (sblk->status_rx_quick_consumer_index8 ||
7033             sblk->status_rx_quick_consumer_index9) {
7034                 if_printf(ifp, "rx_cons8  = 0x%08X, rx_cons9      = 0x%08X\n",
7035                           sblk->status_rx_quick_consumer_index8,
7036                           sblk->status_rx_quick_consumer_index9);
7037         }
7038
7039         if (sblk->status_rx_quick_consumer_index10 ||
7040             sblk->status_rx_quick_consumer_index11) {
7041                 if_printf(ifp, "rx_cons10 = 0x%08X, rx_cons11     = 0x%08X\n",
7042                           sblk->status_rx_quick_consumer_index10,
7043                           sblk->status_rx_quick_consumer_index11);
7044         }
7045
7046         if (sblk->status_rx_quick_consumer_index12 ||
7047             sblk->status_rx_quick_consumer_index13) {
7048                 if_printf(ifp, "rx_cons12 = 0x%08X, rx_cons13     = 0x%08X\n",
7049                           sblk->status_rx_quick_consumer_index12,
7050                           sblk->status_rx_quick_consumer_index13);
7051         }
7052
7053         if (sblk->status_rx_quick_consumer_index14 ||
7054             sblk->status_rx_quick_consumer_index15) {
7055                 if_printf(ifp, "rx_cons14 = 0x%08X, rx_cons15     = 0x%08X\n",
7056                           sblk->status_rx_quick_consumer_index14,
7057                           sblk->status_rx_quick_consumer_index15);
7058         }
7059
7060         if (sblk->status_completion_producer_index ||
7061             sblk->status_cmd_consumer_index) {
7062                 if_printf(ifp, "com_prod  = 0x%08X, cmd_cons      = 0x%08X\n",
7063                           sblk->status_completion_producer_index,
7064                           sblk->status_cmd_consumer_index);
7065         }
7066
7067         if_printf(ifp,
7068         "----------------------------"
7069         "----------------"
7070         "----------------------------\n");
7071 }
7072
7073
7074 /****************************************************************************/
7075 /* Prints out the statistics block.                                         */
7076 /*                                                                          */
7077 /* Returns:                                                                 */
7078 /*   Nothing.                                                               */
7079 /****************************************************************************/
7080 static void
7081 bce_dump_stats_block(struct bce_softc *sc)
7082 {
7083         struct statistics_block *sblk = sc->stats_block;
7084         struct ifnet *ifp = &sc->arpcom.ac_if;
7085
7086         if_printf(ifp,
7087         "---------------"
7088         " Stats Block  (All Stats Not Shown Are 0) "
7089         "---------------\n");
7090
7091         if (sblk->stat_IfHCInOctets_hi || sblk->stat_IfHCInOctets_lo) {
7092                 if_printf(ifp, "0x%08X:%08X : IfHcInOctets\n",
7093                           sblk->stat_IfHCInOctets_hi,
7094                           sblk->stat_IfHCInOctets_lo);
7095         }
7096
7097         if (sblk->stat_IfHCInBadOctets_hi || sblk->stat_IfHCInBadOctets_lo) {
7098                 if_printf(ifp, "0x%08X:%08X : IfHcInBadOctets\n",
7099                           sblk->stat_IfHCInBadOctets_hi,
7100                           sblk->stat_IfHCInBadOctets_lo);
7101         }
7102
7103         if (sblk->stat_IfHCOutOctets_hi || sblk->stat_IfHCOutOctets_lo) {
7104                 if_printf(ifp, "0x%08X:%08X : IfHcOutOctets\n",
7105                           sblk->stat_IfHCOutOctets_hi,
7106                           sblk->stat_IfHCOutOctets_lo);
7107         }
7108
7109         if (sblk->stat_IfHCOutBadOctets_hi || sblk->stat_IfHCOutBadOctets_lo) {
7110                 if_printf(ifp, "0x%08X:%08X : IfHcOutBadOctets\n",
7111                           sblk->stat_IfHCOutBadOctets_hi,
7112                           sblk->stat_IfHCOutBadOctets_lo);
7113         }
7114
7115         if (sblk->stat_IfHCInUcastPkts_hi || sblk->stat_IfHCInUcastPkts_lo) {
7116                 if_printf(ifp, "0x%08X:%08X : IfHcInUcastPkts\n",
7117                           sblk->stat_IfHCInUcastPkts_hi,
7118                           sblk->stat_IfHCInUcastPkts_lo);
7119         }
7120
7121         if (sblk->stat_IfHCInBroadcastPkts_hi ||
7122             sblk->stat_IfHCInBroadcastPkts_lo) {
7123                 if_printf(ifp, "0x%08X:%08X : IfHcInBroadcastPkts\n",
7124                           sblk->stat_IfHCInBroadcastPkts_hi,
7125                           sblk->stat_IfHCInBroadcastPkts_lo);
7126         }
7127
7128         if (sblk->stat_IfHCInMulticastPkts_hi ||
7129             sblk->stat_IfHCInMulticastPkts_lo) {
7130                 if_printf(ifp, "0x%08X:%08X : IfHcInMulticastPkts\n",
7131                           sblk->stat_IfHCInMulticastPkts_hi,
7132                           sblk->stat_IfHCInMulticastPkts_lo);
7133         }
7134
7135         if (sblk->stat_IfHCOutUcastPkts_hi || sblk->stat_IfHCOutUcastPkts_lo) {
7136                 if_printf(ifp, "0x%08X:%08X : IfHcOutUcastPkts\n",
7137                           sblk->stat_IfHCOutUcastPkts_hi,
7138                           sblk->stat_IfHCOutUcastPkts_lo);
7139         }
7140
7141         if (sblk->stat_IfHCOutBroadcastPkts_hi ||
7142             sblk->stat_IfHCOutBroadcastPkts_lo) {
7143                 if_printf(ifp, "0x%08X:%08X : IfHcOutBroadcastPkts\n",
7144                           sblk->stat_IfHCOutBroadcastPkts_hi,
7145                           sblk->stat_IfHCOutBroadcastPkts_lo);
7146         }
7147
7148         if (sblk->stat_IfHCOutMulticastPkts_hi ||
7149             sblk->stat_IfHCOutMulticastPkts_lo) {
7150                 if_printf(ifp, "0x%08X:%08X : IfHcOutMulticastPkts\n",
7151                           sblk->stat_IfHCOutMulticastPkts_hi,
7152                           sblk->stat_IfHCOutMulticastPkts_lo);
7153         }
7154
7155         if (sblk->stat_emac_tx_stat_dot3statsinternalmactransmiterrors) {
7156                 if_printf(ifp, "         0x%08X : "
7157                 "emac_tx_stat_dot3statsinternalmactransmiterrors\n",
7158                 sblk->stat_emac_tx_stat_dot3statsinternalmactransmiterrors);
7159         }
7160
7161         if (sblk->stat_Dot3StatsCarrierSenseErrors) {
7162                 if_printf(ifp, "         0x%08X : "
7163                           "Dot3StatsCarrierSenseErrors\n",
7164                           sblk->stat_Dot3StatsCarrierSenseErrors);
7165         }
7166
7167         if (sblk->stat_Dot3StatsFCSErrors) {
7168                 if_printf(ifp, "         0x%08X : Dot3StatsFCSErrors\n",
7169                           sblk->stat_Dot3StatsFCSErrors);
7170         }
7171
7172         if (sblk->stat_Dot3StatsAlignmentErrors) {
7173                 if_printf(ifp, "         0x%08X : Dot3StatsAlignmentErrors\n",
7174                           sblk->stat_Dot3StatsAlignmentErrors);
7175         }
7176
7177         if (sblk->stat_Dot3StatsSingleCollisionFrames) {
7178                 if_printf(ifp, "         0x%08X : "
7179                           "Dot3StatsSingleCollisionFrames\n",
7180                           sblk->stat_Dot3StatsSingleCollisionFrames);
7181         }
7182
7183         if (sblk->stat_Dot3StatsMultipleCollisionFrames) {
7184                 if_printf(ifp, "         0x%08X : "
7185                           "Dot3StatsMultipleCollisionFrames\n",
7186                           sblk->stat_Dot3StatsMultipleCollisionFrames);
7187         }
7188
7189         if (sblk->stat_Dot3StatsDeferredTransmissions) {
7190                 if_printf(ifp, "         0x%08X : "
7191                           "Dot3StatsDeferredTransmissions\n",
7192                           sblk->stat_Dot3StatsDeferredTransmissions);
7193         }
7194
7195         if (sblk->stat_Dot3StatsExcessiveCollisions) {
7196                 if_printf(ifp, "         0x%08X : "
7197                           "Dot3StatsExcessiveCollisions\n",
7198                           sblk->stat_Dot3StatsExcessiveCollisions);
7199         }
7200
7201         if (sblk->stat_Dot3StatsLateCollisions) {
7202                 if_printf(ifp, "         0x%08X : Dot3StatsLateCollisions\n",
7203                           sblk->stat_Dot3StatsLateCollisions);
7204         }
7205
7206         if (sblk->stat_EtherStatsCollisions) {
7207                 if_printf(ifp, "         0x%08X : EtherStatsCollisions\n",
7208                           sblk->stat_EtherStatsCollisions);
7209         }
7210
7211         if (sblk->stat_EtherStatsFragments)  {
7212                 if_printf(ifp, "         0x%08X : EtherStatsFragments\n",
7213                           sblk->stat_EtherStatsFragments);
7214         }
7215
7216         if (sblk->stat_EtherStatsJabbers) {
7217                 if_printf(ifp, "         0x%08X : EtherStatsJabbers\n",
7218                           sblk->stat_EtherStatsJabbers);
7219         }
7220
7221         if (sblk->stat_EtherStatsUndersizePkts) {
7222                 if_printf(ifp, "         0x%08X : EtherStatsUndersizePkts\n",
7223                           sblk->stat_EtherStatsUndersizePkts);
7224         }
7225
7226         if (sblk->stat_EtherStatsOverrsizePkts) {
7227                 if_printf(ifp, "         0x%08X : EtherStatsOverrsizePkts\n",
7228                           sblk->stat_EtherStatsOverrsizePkts);
7229         }
7230
7231         if (sblk->stat_EtherStatsPktsRx64Octets) {
7232                 if_printf(ifp, "         0x%08X : EtherStatsPktsRx64Octets\n",
7233                           sblk->stat_EtherStatsPktsRx64Octets);
7234         }
7235
7236         if (sblk->stat_EtherStatsPktsRx65Octetsto127Octets) {
7237                 if_printf(ifp, "         0x%08X : "
7238                           "EtherStatsPktsRx65Octetsto127Octets\n",
7239                           sblk->stat_EtherStatsPktsRx65Octetsto127Octets);
7240         }
7241
7242         if (sblk->stat_EtherStatsPktsRx128Octetsto255Octets) {
7243                 if_printf(ifp, "         0x%08X : "
7244                           "EtherStatsPktsRx128Octetsto255Octets\n",
7245                           sblk->stat_EtherStatsPktsRx128Octetsto255Octets);
7246         }
7247
7248         if (sblk->stat_EtherStatsPktsRx256Octetsto511Octets) {
7249                 if_printf(ifp, "         0x%08X : "
7250                           "EtherStatsPktsRx256Octetsto511Octets\n",
7251                           sblk->stat_EtherStatsPktsRx256Octetsto511Octets);
7252         }
7253
7254         if (sblk->stat_EtherStatsPktsRx512Octetsto1023Octets) {
7255                 if_printf(ifp, "         0x%08X : "
7256                           "EtherStatsPktsRx512Octetsto1023Octets\n",
7257                           sblk->stat_EtherStatsPktsRx512Octetsto1023Octets);
7258         }
7259
7260         if (sblk->stat_EtherStatsPktsRx1024Octetsto1522Octets) {
7261                 if_printf(ifp, "         0x%08X : "
7262                           "EtherStatsPktsRx1024Octetsto1522Octets\n",
7263                           sblk->stat_EtherStatsPktsRx1024Octetsto1522Octets);
7264         }
7265
7266         if (sblk->stat_EtherStatsPktsRx1523Octetsto9022Octets) {
7267                 if_printf(ifp, "         0x%08X : "
7268                           "EtherStatsPktsRx1523Octetsto9022Octets\n",
7269                           sblk->stat_EtherStatsPktsRx1523Octetsto9022Octets);
7270         }
7271
7272         if (sblk->stat_EtherStatsPktsTx64Octets) {
7273                 if_printf(ifp, "         0x%08X : EtherStatsPktsTx64Octets\n",
7274                           sblk->stat_EtherStatsPktsTx64Octets);
7275         }
7276
7277         if (sblk->stat_EtherStatsPktsTx65Octetsto127Octets) {
7278                 if_printf(ifp, "         0x%08X : "
7279                           "EtherStatsPktsTx65Octetsto127Octets\n",
7280                           sblk->stat_EtherStatsPktsTx65Octetsto127Octets);
7281         }
7282
7283         if (sblk->stat_EtherStatsPktsTx128Octetsto255Octets) {
7284                 if_printf(ifp, "         0x%08X : "
7285                           "EtherStatsPktsTx128Octetsto255Octets\n",
7286                           sblk->stat_EtherStatsPktsTx128Octetsto255Octets);
7287         }
7288
7289         if (sblk->stat_EtherStatsPktsTx256Octetsto511Octets) {
7290                 if_printf(ifp, "         0x%08X : "
7291                           "EtherStatsPktsTx256Octetsto511Octets\n",
7292                           sblk->stat_EtherStatsPktsTx256Octetsto511Octets);
7293         }
7294
7295         if (sblk->stat_EtherStatsPktsTx512Octetsto1023Octets) {
7296                 if_printf(ifp, "         0x%08X : "
7297                           "EtherStatsPktsTx512Octetsto1023Octets\n",
7298                           sblk->stat_EtherStatsPktsTx512Octetsto1023Octets);
7299         }
7300
7301         if (sblk->stat_EtherStatsPktsTx1024Octetsto1522Octets) {
7302                 if_printf(ifp, "         0x%08X : "
7303                           "EtherStatsPktsTx1024Octetsto1522Octets\n",
7304                           sblk->stat_EtherStatsPktsTx1024Octetsto1522Octets);
7305         }
7306
7307         if (sblk->stat_EtherStatsPktsTx1523Octetsto9022Octets) {
7308                 if_printf(ifp, "         0x%08X : "
7309                           "EtherStatsPktsTx1523Octetsto9022Octets\n",
7310                           sblk->stat_EtherStatsPktsTx1523Octetsto9022Octets);
7311         }
7312
7313         if (sblk->stat_XonPauseFramesReceived) {
7314                 if_printf(ifp, "         0x%08X : XonPauseFramesReceived\n",
7315                           sblk->stat_XonPauseFramesReceived);
7316         }
7317
7318         if (sblk->stat_XoffPauseFramesReceived) {
7319                 if_printf(ifp, "          0x%08X : XoffPauseFramesReceived\n",
7320                           sblk->stat_XoffPauseFramesReceived);
7321         }
7322
7323         if (sblk->stat_OutXonSent) {
7324                 if_printf(ifp, "         0x%08X : OutXoffSent\n",
7325                           sblk->stat_OutXonSent);
7326         }
7327
7328         if (sblk->stat_OutXoffSent) {
7329                 if_printf(ifp, "         0x%08X : OutXoffSent\n",
7330                           sblk->stat_OutXoffSent);
7331         }
7332
7333         if (sblk->stat_FlowControlDone) {
7334                 if_printf(ifp, "         0x%08X : FlowControlDone\n",
7335                           sblk->stat_FlowControlDone);
7336         }
7337
7338         if (sblk->stat_MacControlFramesReceived) {
7339                 if_printf(ifp, "         0x%08X : MacControlFramesReceived\n",
7340                           sblk->stat_MacControlFramesReceived);
7341         }
7342
7343         if (sblk->stat_XoffStateEntered) {
7344                 if_printf(ifp, "         0x%08X : XoffStateEntered\n",
7345                           sblk->stat_XoffStateEntered);
7346         }
7347
7348         if (sblk->stat_IfInFramesL2FilterDiscards) {
7349                 if_printf(ifp, "         0x%08X : IfInFramesL2FilterDiscards\n",                          sblk->stat_IfInFramesL2FilterDiscards);
7350         }
7351
7352         if (sblk->stat_IfInRuleCheckerDiscards) {
7353                 if_printf(ifp, "         0x%08X : IfInRuleCheckerDiscards\n",
7354                           sblk->stat_IfInRuleCheckerDiscards);
7355         }
7356
7357         if (sblk->stat_IfInFTQDiscards) {
7358                 if_printf(ifp, "         0x%08X : IfInFTQDiscards\n",
7359                           sblk->stat_IfInFTQDiscards);
7360         }
7361
7362         if (sblk->stat_IfInMBUFDiscards) {
7363                 if_printf(ifp, "         0x%08X : IfInMBUFDiscards\n",
7364                           sblk->stat_IfInMBUFDiscards);
7365         }
7366
7367         if (sblk->stat_IfInRuleCheckerP4Hit) {
7368                 if_printf(ifp, "         0x%08X : IfInRuleCheckerP4Hit\n",
7369                           sblk->stat_IfInRuleCheckerP4Hit);
7370         }
7371
7372         if (sblk->stat_CatchupInRuleCheckerDiscards) {
7373                 if_printf(ifp, "         0x%08X : "
7374                           "CatchupInRuleCheckerDiscards\n",
7375                           sblk->stat_CatchupInRuleCheckerDiscards);
7376         }
7377
7378         if (sblk->stat_CatchupInFTQDiscards) {
7379                 if_printf(ifp, "         0x%08X : CatchupInFTQDiscards\n",
7380                           sblk->stat_CatchupInFTQDiscards);
7381         }
7382
7383         if (sblk->stat_CatchupInMBUFDiscards) {
7384                 if_printf(ifp, "         0x%08X : CatchupInMBUFDiscards\n",
7385                           sblk->stat_CatchupInMBUFDiscards);
7386         }
7387
7388         if (sblk->stat_CatchupInRuleCheckerP4Hit) {
7389                 if_printf(ifp, "         0x%08X : CatchupInRuleCheckerP4Hit\n",
7390                           sblk->stat_CatchupInRuleCheckerP4Hit);
7391         }
7392
7393         if_printf(ifp,
7394         "----------------------------"
7395         "----------------"
7396         "----------------------------\n");
7397 }
7398
7399
7400 /****************************************************************************/
7401 /* Prints out a summary of the driver state.                                */
7402 /*                                                                          */
7403 /* Returns:                                                                 */
7404 /*   Nothing.                                                               */
7405 /****************************************************************************/
7406 static void
7407 bce_dump_driver_state(struct bce_softc *sc)
7408 {
7409         struct ifnet *ifp = &sc->arpcom.ac_if;
7410         uint32_t val_hi, val_lo;
7411
7412         if_printf(ifp,
7413         "-----------------------------"
7414         " Driver State "
7415         "-----------------------------\n");
7416
7417         val_hi = BCE_ADDR_HI(sc);
7418         val_lo = BCE_ADDR_LO(sc);
7419         if_printf(ifp, "0x%08X:%08X - (sc) driver softc structure "
7420                   "virtual address\n", val_hi, val_lo);
7421
7422         val_hi = BCE_ADDR_HI(sc->status_block);
7423         val_lo = BCE_ADDR_LO(sc->status_block);
7424         if_printf(ifp, "0x%08X:%08X - (sc->status_block) status block "
7425                   "virtual address\n", val_hi, val_lo);
7426
7427         val_hi = BCE_ADDR_HI(sc->stats_block);
7428         val_lo = BCE_ADDR_LO(sc->stats_block);
7429         if_printf(ifp, "0x%08X:%08X - (sc->stats_block) statistics block "
7430                   "virtual address\n", val_hi, val_lo);
7431
7432         val_hi = BCE_ADDR_HI(sc->tx_bd_chain);
7433         val_lo = BCE_ADDR_LO(sc->tx_bd_chain);
7434         if_printf(ifp, "0x%08X:%08X - (sc->tx_bd_chain) tx_bd chain "
7435                   "virtual adddress\n", val_hi, val_lo);
7436
7437         val_hi = BCE_ADDR_HI(sc->rx_bd_chain);
7438         val_lo = BCE_ADDR_LO(sc->rx_bd_chain);
7439         if_printf(ifp, "0x%08X:%08X - (sc->rx_bd_chain) rx_bd chain "
7440                   "virtual address\n", val_hi, val_lo);
7441
7442         val_hi = BCE_ADDR_HI(sc->tx_mbuf_ptr);
7443         val_lo = BCE_ADDR_LO(sc->tx_mbuf_ptr);
7444         if_printf(ifp, "0x%08X:%08X - (sc->tx_mbuf_ptr) tx mbuf chain "
7445                   "virtual address\n", val_hi, val_lo);
7446
7447         val_hi = BCE_ADDR_HI(sc->rx_mbuf_ptr);
7448         val_lo = BCE_ADDR_LO(sc->rx_mbuf_ptr);
7449         if_printf(ifp, "0x%08X:%08X - (sc->rx_mbuf_ptr) rx mbuf chain "
7450                   "virtual address\n", val_hi, val_lo);
7451
7452         if_printf(ifp, "         0x%08X - (sc->interrupts_generated) "
7453                   "h/w intrs\n", sc->interrupts_generated);
7454
7455         if_printf(ifp, "         0x%08X - (sc->rx_interrupts) "
7456                   "rx interrupts handled\n", sc->rx_interrupts);
7457
7458         if_printf(ifp, "         0x%08X - (sc->tx_interrupts) "
7459                   "tx interrupts handled\n", sc->tx_interrupts);
7460
7461         if_printf(ifp, "         0x%08X - (sc->last_status_idx) "
7462                   "status block index\n", sc->last_status_idx);
7463
7464         if_printf(ifp, "     0x%04X(0x%04X) - (sc->tx_prod) "
7465                   "tx producer index\n",
7466                   sc->tx_prod, (uint16_t)TX_CHAIN_IDX(sc, sc->tx_prod));
7467
7468         if_printf(ifp, "     0x%04X(0x%04X) - (sc->tx_cons) "
7469                   "tx consumer index\n",
7470                   sc->tx_cons, (uint16_t)TX_CHAIN_IDX(sc, sc->tx_cons));
7471
7472         if_printf(ifp, "         0x%08X - (sc->tx_prod_bseq) "
7473                   "tx producer bseq index\n", sc->tx_prod_bseq);
7474
7475         if_printf(ifp, "     0x%04X(0x%04X) - (sc->rx_prod) "
7476                   "rx producer index\n",
7477                   sc->rx_prod, (uint16_t)RX_CHAIN_IDX(sc, sc->rx_prod));
7478
7479         if_printf(ifp, "     0x%04X(0x%04X) - (sc->rx_cons) "
7480                   "rx consumer index\n",
7481                   sc->rx_cons, (uint16_t)RX_CHAIN_IDX(sc, sc->rx_cons));
7482
7483         if_printf(ifp, "         0x%08X - (sc->rx_prod_bseq) "
7484                   "rx producer bseq index\n", sc->rx_prod_bseq);
7485
7486         if_printf(ifp, "         0x%08X - (sc->rx_mbuf_alloc) "
7487                   "rx mbufs allocated\n", sc->rx_mbuf_alloc);
7488
7489         if_printf(ifp, "         0x%08X - (sc->free_rx_bd) "
7490                   "free rx_bd's\n", sc->free_rx_bd);
7491
7492         if_printf(ifp, "0x%08X/%08X - (sc->rx_low_watermark) rx "
7493                   "low watermark\n", sc->rx_low_watermark, sc->max_rx_bd);
7494
7495         if_printf(ifp, "         0x%08X - (sc->txmbuf_alloc) "
7496                   "tx mbufs allocated\n", sc->tx_mbuf_alloc);
7497
7498         if_printf(ifp, "         0x%08X - (sc->rx_mbuf_alloc) "
7499                   "rx mbufs allocated\n", sc->rx_mbuf_alloc);
7500
7501         if_printf(ifp, "         0x%08X - (sc->used_tx_bd) used tx_bd's\n",
7502                   sc->used_tx_bd);
7503
7504         if_printf(ifp, "0x%08X/%08X - (sc->tx_hi_watermark) tx hi watermark\n",
7505                   sc->tx_hi_watermark, sc->max_tx_bd);
7506
7507         if_printf(ifp, "         0x%08X - (sc->mbuf_alloc_failed) "
7508                   "failed mbuf alloc\n", sc->mbuf_alloc_failed);
7509
7510         if_printf(ifp,
7511         "----------------------------"
7512         "----------------"
7513         "----------------------------\n");
7514 }
7515
7516
7517 /****************************************************************************/
7518 /* Prints out the hardware state through a summary of important registers,  */
7519 /* followed by a complete register dump.                                    */
7520 /*                                                                          */
7521 /* Returns:                                                                 */
7522 /*   Nothing.                                                               */
7523 /****************************************************************************/
7524 static void
7525 bce_dump_hw_state(struct bce_softc *sc)
7526 {
7527         struct ifnet *ifp = &sc->arpcom.ac_if;
7528         uint32_t val1;
7529         int i;
7530
7531         if_printf(ifp,
7532         "----------------------------"
7533         " Hardware State "
7534         "----------------------------\n");
7535
7536         if_printf(ifp, "%s - bootcode version\n", sc->bce_bc_ver);
7537
7538         val1 = REG_RD(sc, BCE_MISC_ENABLE_STATUS_BITS);
7539         if_printf(ifp, "0x%08X - (0x%06X) misc_enable_status_bits\n",
7540                   val1, BCE_MISC_ENABLE_STATUS_BITS);
7541
7542         val1 = REG_RD(sc, BCE_DMA_STATUS);
7543         if_printf(ifp, "0x%08X - (0x%04X) dma_status\n", val1, BCE_DMA_STATUS);
7544
7545         val1 = REG_RD(sc, BCE_CTX_STATUS);
7546         if_printf(ifp, "0x%08X - (0x%04X) ctx_status\n", val1, BCE_CTX_STATUS);
7547
7548         val1 = REG_RD(sc, BCE_EMAC_STATUS);
7549         if_printf(ifp, "0x%08X - (0x%04X) emac_status\n",
7550                   val1, BCE_EMAC_STATUS);
7551
7552         val1 = REG_RD(sc, BCE_RPM_STATUS);
7553         if_printf(ifp, "0x%08X - (0x%04X) rpm_status\n", val1, BCE_RPM_STATUS);
7554
7555         val1 = REG_RD(sc, BCE_TBDR_STATUS);
7556         if_printf(ifp, "0x%08X - (0x%04X) tbdr_status\n",
7557                   val1, BCE_TBDR_STATUS);
7558
7559         val1 = REG_RD(sc, BCE_TDMA_STATUS);
7560         if_printf(ifp, "0x%08X - (0x%04X) tdma_status\n",
7561                   val1, BCE_TDMA_STATUS);
7562
7563         val1 = REG_RD(sc, BCE_HC_STATUS);
7564         if_printf(ifp, "0x%08X - (0x%06X) hc_status\n", val1, BCE_HC_STATUS);
7565
7566         val1 = REG_RD_IND(sc, BCE_TXP_CPU_STATE);
7567         if_printf(ifp, "0x%08X - (0x%06X) txp_cpu_state\n",
7568                   val1, BCE_TXP_CPU_STATE);
7569
7570         val1 = REG_RD_IND(sc, BCE_TPAT_CPU_STATE);
7571         if_printf(ifp, "0x%08X - (0x%06X) tpat_cpu_state\n",
7572                   val1, BCE_TPAT_CPU_STATE);
7573
7574         val1 = REG_RD_IND(sc, BCE_RXP_CPU_STATE);
7575         if_printf(ifp, "0x%08X - (0x%06X) rxp_cpu_state\n",
7576                   val1, BCE_RXP_CPU_STATE);
7577
7578         val1 = REG_RD_IND(sc, BCE_COM_CPU_STATE);
7579         if_printf(ifp, "0x%08X - (0x%06X) com_cpu_state\n",
7580                   val1, BCE_COM_CPU_STATE);
7581
7582         val1 = REG_RD_IND(sc, BCE_MCP_CPU_STATE);
7583         if_printf(ifp, "0x%08X - (0x%06X) mcp_cpu_state\n",
7584                   val1, BCE_MCP_CPU_STATE);
7585
7586         val1 = REG_RD_IND(sc, BCE_CP_CPU_STATE);
7587         if_printf(ifp, "0x%08X - (0x%06X) cp_cpu_state\n",
7588                   val1, BCE_CP_CPU_STATE);
7589
7590         if_printf(ifp,
7591         "----------------------------"
7592         "----------------"
7593         "----------------------------\n");
7594
7595         if_printf(ifp,
7596         "----------------------------"
7597         " Register  Dump "
7598         "----------------------------\n");
7599
7600         for (i = 0x400; i < 0x8000; i += 0x10) {
7601                 if_printf(ifp, "0x%04X: 0x%08X 0x%08X 0x%08X 0x%08X\n", i,
7602                           REG_RD(sc, i),
7603                           REG_RD(sc, i + 0x4),
7604                           REG_RD(sc, i + 0x8),
7605                           REG_RD(sc, i + 0xc));
7606         }
7607
7608         if_printf(ifp,
7609         "----------------------------"
7610         "----------------"
7611         "----------------------------\n");
7612 }
7613
7614
7615 /****************************************************************************/
7616 /* Prints out the TXP state.                                                */
7617 /*                                                                          */
7618 /* Returns:                                                                 */
7619 /*   Nothing.                                                               */
7620 /****************************************************************************/
7621 static void
7622 bce_dump_txp_state(struct bce_softc *sc)
7623 {
7624         struct ifnet *ifp = &sc->arpcom.ac_if;
7625         uint32_t val1;
7626         int i;
7627
7628         if_printf(ifp,
7629         "----------------------------"
7630         "   TXP  State   "
7631         "----------------------------\n");
7632
7633         val1 = REG_RD_IND(sc, BCE_TXP_CPU_MODE);
7634         if_printf(ifp, "0x%08X - (0x%06X) txp_cpu_mode\n",
7635                   val1, BCE_TXP_CPU_MODE);
7636
7637         val1 = REG_RD_IND(sc, BCE_TXP_CPU_STATE);
7638         if_printf(ifp, "0x%08X - (0x%06X) txp_cpu_state\n",
7639                   val1, BCE_TXP_CPU_STATE);
7640
7641         val1 = REG_RD_IND(sc, BCE_TXP_CPU_EVENT_MASK);
7642         if_printf(ifp, "0x%08X - (0x%06X) txp_cpu_event_mask\n",
7643                   val1, BCE_TXP_CPU_EVENT_MASK);
7644
7645         if_printf(ifp,
7646         "----------------------------"
7647         " Register  Dump "
7648         "----------------------------\n");
7649
7650         for (i = BCE_TXP_CPU_MODE; i < 0x68000; i += 0x10) {
7651                 /* Skip the big blank spaces */
7652                 if (i < 0x454000 && i > 0x5ffff) {
7653                         if_printf(ifp, "0x%04X: "
7654                                   "0x%08X 0x%08X 0x%08X 0x%08X\n", i,
7655                                   REG_RD_IND(sc, i),
7656                                   REG_RD_IND(sc, i + 0x4),
7657                                   REG_RD_IND(sc, i + 0x8),
7658                                   REG_RD_IND(sc, i + 0xc));
7659                 }
7660         }
7661
7662         if_printf(ifp,
7663         "----------------------------"
7664         "----------------"
7665         "----------------------------\n");
7666 }
7667
7668
7669 /****************************************************************************/
7670 /* Prints out the RXP state.                                                */
7671 /*                                                                          */
7672 /* Returns:                                                                 */
7673 /*   Nothing.                                                               */
7674 /****************************************************************************/
7675 static void
7676 bce_dump_rxp_state(struct bce_softc *sc)
7677 {
7678         struct ifnet *ifp = &sc->arpcom.ac_if;
7679         uint32_t val1;
7680         int i;
7681
7682         if_printf(ifp,
7683         "----------------------------"
7684         "   RXP  State   "
7685         "----------------------------\n");
7686
7687         val1 = REG_RD_IND(sc, BCE_RXP_CPU_MODE);
7688         if_printf(ifp, "0x%08X - (0x%06X) rxp_cpu_mode\n",
7689                   val1, BCE_RXP_CPU_MODE);
7690
7691         val1 = REG_RD_IND(sc, BCE_RXP_CPU_STATE);
7692         if_printf(ifp, "0x%08X - (0x%06X) rxp_cpu_state\n",
7693                   val1, BCE_RXP_CPU_STATE);
7694
7695         val1 = REG_RD_IND(sc, BCE_RXP_CPU_EVENT_MASK);
7696         if_printf(ifp, "0x%08X - (0x%06X) rxp_cpu_event_mask\n",
7697                   val1, BCE_RXP_CPU_EVENT_MASK);
7698
7699         if_printf(ifp,
7700         "----------------------------"
7701         " Register  Dump "
7702         "----------------------------\n");
7703
7704         for (i = BCE_RXP_CPU_MODE; i < 0xe8fff; i += 0x10) {
7705                 /* Skip the big blank sapces */
7706                 if (i < 0xc5400 && i > 0xdffff) {
7707                         if_printf(ifp, "0x%04X: "
7708                                   "0x%08X 0x%08X 0x%08X 0x%08X\n", i,
7709                                   REG_RD_IND(sc, i),
7710                                   REG_RD_IND(sc, i + 0x4),
7711                                   REG_RD_IND(sc, i + 0x8),
7712                                   REG_RD_IND(sc, i + 0xc));
7713                 }
7714         }
7715
7716         if_printf(ifp,
7717         "----------------------------"
7718         "----------------"
7719         "----------------------------\n");
7720 }
7721
7722
7723 /****************************************************************************/
7724 /* Prints out the TPAT state.                                               */
7725 /*                                                                          */
7726 /* Returns:                                                                 */
7727 /*   Nothing.                                                               */
7728 /****************************************************************************/
7729 static void
7730 bce_dump_tpat_state(struct bce_softc *sc)
7731 {
7732         struct ifnet *ifp = &sc->arpcom.ac_if;
7733         uint32_t val1;
7734         int i;
7735
7736         if_printf(ifp,
7737         "----------------------------"
7738         "   TPAT State   "
7739         "----------------------------\n");
7740
7741         val1 = REG_RD_IND(sc, BCE_TPAT_CPU_MODE);
7742         if_printf(ifp, "0x%08X - (0x%06X) tpat_cpu_mode\n",
7743                   val1, BCE_TPAT_CPU_MODE);
7744
7745         val1 = REG_RD_IND(sc, BCE_TPAT_CPU_STATE);
7746         if_printf(ifp, "0x%08X - (0x%06X) tpat_cpu_state\n",
7747                   val1, BCE_TPAT_CPU_STATE);
7748
7749         val1 = REG_RD_IND(sc, BCE_TPAT_CPU_EVENT_MASK);
7750         if_printf(ifp, "0x%08X - (0x%06X) tpat_cpu_event_mask\n",
7751                   val1, BCE_TPAT_CPU_EVENT_MASK);
7752
7753         if_printf(ifp,
7754         "----------------------------"
7755         " Register  Dump "
7756         "----------------------------\n");
7757
7758         for (i = BCE_TPAT_CPU_MODE; i < 0xa3fff; i += 0x10) {
7759                 /* Skip the big blank spaces */
7760                 if (i < 0x854000 && i > 0x9ffff) {
7761                         if_printf(ifp, "0x%04X: "
7762                                   "0x%08X 0x%08X 0x%08X 0x%08X\n", i,
7763                                   REG_RD_IND(sc, i),
7764                                   REG_RD_IND(sc, i + 0x4),
7765                                   REG_RD_IND(sc, i + 0x8),
7766                                   REG_RD_IND(sc, i + 0xc));
7767                 }
7768         }
7769
7770         if_printf(ifp,
7771         "----------------------------"
7772         "----------------"
7773         "----------------------------\n");
7774 }
7775
7776
7777 /****************************************************************************/
7778 /* Prints out the driver state and then enters the debugger.                */
7779 /*                                                                          */
7780 /* Returns:                                                                 */
7781 /*   Nothing.                                                               */
7782 /****************************************************************************/
7783 static void
7784 bce_breakpoint(struct bce_softc *sc)
7785 {
7786 #if 0
7787         bce_freeze_controller(sc);
7788 #endif
7789
7790         bce_dump_driver_state(sc);
7791         bce_dump_status_block(sc);
7792         bce_dump_tx_chain(sc, 0, TOTAL_TX_BD(sc));
7793         bce_dump_hw_state(sc);
7794         bce_dump_txp_state(sc);
7795
7796 #if 0
7797         bce_unfreeze_controller(sc);
7798 #endif
7799
7800         /* Call the debugger. */
7801         breakpoint();
7802 }
7803
7804 #endif  /* BCE_DEBUG */
7805
7806 static int
7807 bce_sysctl_tx_bds_int(SYSCTL_HANDLER_ARGS)
7808 {
7809         struct bce_softc *sc = arg1;
7810
7811         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7812                         &sc->bce_tx_quick_cons_trip_int,
7813                         BCE_COALMASK_TX_BDS_INT);
7814 }
7815
7816 static int
7817 bce_sysctl_tx_bds(SYSCTL_HANDLER_ARGS)
7818 {
7819         struct bce_softc *sc = arg1;
7820
7821         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7822                         &sc->bce_tx_quick_cons_trip,
7823                         BCE_COALMASK_TX_BDS);
7824 }
7825
7826 static int
7827 bce_sysctl_tx_ticks_int(SYSCTL_HANDLER_ARGS)
7828 {
7829         struct bce_softc *sc = arg1;
7830
7831         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7832                         &sc->bce_tx_ticks_int,
7833                         BCE_COALMASK_TX_TICKS_INT);
7834 }
7835
7836 static int
7837 bce_sysctl_tx_ticks(SYSCTL_HANDLER_ARGS)
7838 {
7839         struct bce_softc *sc = arg1;
7840
7841         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7842                         &sc->bce_tx_ticks,
7843                         BCE_COALMASK_TX_TICKS);
7844 }
7845
7846 static int
7847 bce_sysctl_rx_bds_int(SYSCTL_HANDLER_ARGS)
7848 {
7849         struct bce_softc *sc = arg1;
7850
7851         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7852                         &sc->bce_rx_quick_cons_trip_int,
7853                         BCE_COALMASK_RX_BDS_INT);
7854 }
7855
7856 static int
7857 bce_sysctl_rx_bds(SYSCTL_HANDLER_ARGS)
7858 {
7859         struct bce_softc *sc = arg1;
7860
7861         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7862                         &sc->bce_rx_quick_cons_trip,
7863                         BCE_COALMASK_RX_BDS);
7864 }
7865
7866 static int
7867 bce_sysctl_rx_ticks_int(SYSCTL_HANDLER_ARGS)
7868 {
7869         struct bce_softc *sc = arg1;
7870
7871         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7872                         &sc->bce_rx_ticks_int,
7873                         BCE_COALMASK_RX_TICKS_INT);
7874 }
7875
7876 static int
7877 bce_sysctl_rx_ticks(SYSCTL_HANDLER_ARGS)
7878 {
7879         struct bce_softc *sc = arg1;
7880
7881         return bce_sysctl_coal_change(oidp, arg1, arg2, req,
7882                         &sc->bce_rx_ticks,
7883                         BCE_COALMASK_RX_TICKS);
7884 }
7885
7886 static int
7887 bce_sysctl_coal_change(SYSCTL_HANDLER_ARGS, uint32_t *coal,
7888                        uint32_t coalchg_mask)
7889 {
7890         struct bce_softc *sc = arg1;
7891         struct ifnet *ifp = &sc->arpcom.ac_if;
7892         int error = 0, v;
7893
7894         lwkt_serialize_enter(ifp->if_serializer);
7895
7896         v = *coal;
7897         error = sysctl_handle_int(oidp, &v, 0, req);
7898         if (!error && req->newptr != NULL) {
7899                 if (v < 0) {
7900                         error = EINVAL;
7901                 } else {
7902                         *coal = v;
7903                         sc->bce_coalchg_mask |= coalchg_mask;
7904                 }
7905         }
7906
7907         lwkt_serialize_exit(ifp->if_serializer);
7908         return error;
7909 }
7910
7911 static void
7912 bce_coal_change(struct bce_softc *sc)
7913 {
7914         struct ifnet *ifp = &sc->arpcom.ac_if;
7915
7916         ASSERT_SERIALIZED(ifp->if_serializer);
7917
7918         if ((ifp->if_flags & IFF_RUNNING) == 0) {
7919                 sc->bce_coalchg_mask = 0;
7920                 return;
7921         }
7922
7923         if (sc->bce_coalchg_mask &
7924             (BCE_COALMASK_TX_BDS | BCE_COALMASK_TX_BDS_INT)) {
7925                 REG_WR(sc, BCE_HC_TX_QUICK_CONS_TRIP,
7926                        (sc->bce_tx_quick_cons_trip_int << 16) |
7927                        sc->bce_tx_quick_cons_trip);
7928                 if (bootverbose) {
7929                         if_printf(ifp, "tx_bds %u, tx_bds_int %u\n",
7930                                   sc->bce_tx_quick_cons_trip,
7931                                   sc->bce_tx_quick_cons_trip_int);
7932                 }
7933         }
7934
7935         if (sc->bce_coalchg_mask &
7936             (BCE_COALMASK_TX_TICKS | BCE_COALMASK_TX_TICKS_INT)) {
7937                 REG_WR(sc, BCE_HC_TX_TICKS,
7938                        (sc->bce_tx_ticks_int << 16) | sc->bce_tx_ticks);
7939                 if (bootverbose) {
7940                         if_printf(ifp, "tx_ticks %u, tx_ticks_int %u\n",
7941                                   sc->bce_tx_ticks, sc->bce_tx_ticks_int);
7942                 }
7943         }
7944
7945         if (sc->bce_coalchg_mask &
7946             (BCE_COALMASK_RX_BDS | BCE_COALMASK_RX_BDS_INT)) {
7947                 REG_WR(sc, BCE_HC_RX_QUICK_CONS_TRIP,
7948                        (sc->bce_rx_quick_cons_trip_int << 16) |
7949                        sc->bce_rx_quick_cons_trip);
7950                 if (bootverbose) {
7951                         if_printf(ifp, "rx_bds %u, rx_bds_int %u\n",
7952                                   sc->bce_rx_quick_cons_trip,
7953                                   sc->bce_rx_quick_cons_trip_int);
7954                 }
7955         }
7956
7957         if (sc->bce_coalchg_mask &
7958             (BCE_COALMASK_RX_TICKS | BCE_COALMASK_RX_TICKS_INT)) {
7959                 REG_WR(sc, BCE_HC_RX_TICKS,
7960                        (sc->bce_rx_ticks_int << 16) | sc->bce_rx_ticks);
7961                 if (bootverbose) {
7962                         if_printf(ifp, "rx_ticks %u, rx_ticks_int %u\n",
7963                                   sc->bce_rx_ticks, sc->bce_rx_ticks_int);
7964                 }
7965         }
7966
7967         sc->bce_coalchg_mask = 0;
7968 }