linux/drivers/net/ucc_geth.c
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   1/*
   2 * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
   3 *
   4 * Author: Shlomi Gridish <gridish@freescale.com>
   5 *         Li Yang <leoli@freescale.com>
   6 *
   7 * Description:
   8 * QE UCC Gigabit Ethernet Driver
   9 *
  10 * This program is free software; you can redistribute  it and/or modify it
  11 * under  the terms of  the GNU General  Public License as published by the
  12 * Free Software Foundation;  either version 2 of the  License, or (at your
  13 * option) any later version.
  14 */
  15#include <linux/kernel.h>
  16#include <linux/init.h>
  17#include <linux/errno.h>
  18#include <linux/slab.h>
  19#include <linux/stddef.h>
  20#include <linux/interrupt.h>
  21#include <linux/netdevice.h>
  22#include <linux/etherdevice.h>
  23#include <linux/skbuff.h>
  24#include <linux/spinlock.h>
  25#include <linux/mm.h>
  26#include <linux/dma-mapping.h>
  27#include <linux/mii.h>
  28#include <linux/phy.h>
  29#include <linux/workqueue.h>
  30#include <linux/of_mdio.h>
  31#include <linux/of_net.h>
  32#include <linux/of_platform.h>
  33
  34#include <asm/uaccess.h>
  35#include <asm/irq.h>
  36#include <asm/io.h>
  37#include <asm/immap_qe.h>
  38#include <asm/qe.h>
  39#include <asm/ucc.h>
  40#include <asm/ucc_fast.h>
  41#include <asm/machdep.h>
  42
  43#include "ucc_geth.h"
  44#include "fsl_pq_mdio.h"
  45
  46#undef DEBUG
  47
  48#define ugeth_printk(level, format, arg...)  \
  49        printk(level format "\n", ## arg)
  50
  51#define ugeth_dbg(format, arg...)            \
  52        ugeth_printk(KERN_DEBUG , format , ## arg)
  53#define ugeth_err(format, arg...)            \
  54        ugeth_printk(KERN_ERR , format , ## arg)
  55#define ugeth_info(format, arg...)           \
  56        ugeth_printk(KERN_INFO , format , ## arg)
  57#define ugeth_warn(format, arg...)           \
  58        ugeth_printk(KERN_WARNING , format , ## arg)
  59
  60#ifdef UGETH_VERBOSE_DEBUG
  61#define ugeth_vdbg ugeth_dbg
  62#else
  63#define ugeth_vdbg(fmt, args...) do { } while (0)
  64#endif                          /* UGETH_VERBOSE_DEBUG */
  65#define UGETH_MSG_DEFAULT       (NETIF_MSG_IFUP << 1 ) - 1
  66
  67
  68static DEFINE_SPINLOCK(ugeth_lock);
  69
  70static struct {
  71        u32 msg_enable;
  72} debug = { -1 };
  73
  74module_param_named(debug, debug.msg_enable, int, 0);
  75MODULE_PARM_DESC(debug, "Debug verbosity level (0=none, ..., 0xffff=all)");
  76
  77static struct ucc_geth_info ugeth_primary_info = {
  78        .uf_info = {
  79                    .bd_mem_part = MEM_PART_SYSTEM,
  80                    .rtsm = UCC_FAST_SEND_IDLES_BETWEEN_FRAMES,
  81                    .max_rx_buf_length = 1536,
  82                    /* adjusted at startup if max-speed 1000 */
  83                    .urfs = UCC_GETH_URFS_INIT,
  84                    .urfet = UCC_GETH_URFET_INIT,
  85                    .urfset = UCC_GETH_URFSET_INIT,
  86                    .utfs = UCC_GETH_UTFS_INIT,
  87                    .utfet = UCC_GETH_UTFET_INIT,
  88                    .utftt = UCC_GETH_UTFTT_INIT,
  89                    .ufpt = 256,
  90                    .mode = UCC_FAST_PROTOCOL_MODE_ETHERNET,
  91                    .ttx_trx = UCC_FAST_GUMR_TRANSPARENT_TTX_TRX_NORMAL,
  92                    .tenc = UCC_FAST_TX_ENCODING_NRZ,
  93                    .renc = UCC_FAST_RX_ENCODING_NRZ,
  94                    .tcrc = UCC_FAST_16_BIT_CRC,
  95                    .synl = UCC_FAST_SYNC_LEN_NOT_USED,
  96                    },
  97        .numQueuesTx = 1,
  98        .numQueuesRx = 1,
  99        .extendedFilteringChainPointer = ((uint32_t) NULL),
 100        .typeorlen = 3072 /*1536 */ ,
 101        .nonBackToBackIfgPart1 = 0x40,
 102        .nonBackToBackIfgPart2 = 0x60,
 103        .miminumInterFrameGapEnforcement = 0x50,
 104        .backToBackInterFrameGap = 0x60,
 105        .mblinterval = 128,
 106        .nortsrbytetime = 5,
 107        .fracsiz = 1,
 108        .strictpriorityq = 0xff,
 109        .altBebTruncation = 0xa,
 110        .excessDefer = 1,
 111        .maxRetransmission = 0xf,
 112        .collisionWindow = 0x37,
 113        .receiveFlowControl = 1,
 114        .transmitFlowControl = 1,
 115        .maxGroupAddrInHash = 4,
 116        .maxIndAddrInHash = 4,
 117        .prel = 7,
 118        .maxFrameLength = 1518,
 119        .minFrameLength = 64,
 120        .maxD1Length = 1520,
 121        .maxD2Length = 1520,
 122        .vlantype = 0x8100,
 123        .ecamptr = ((uint32_t) NULL),
 124        .eventRegMask = UCCE_OTHER,
 125        .pausePeriod = 0xf000,
 126        .interruptcoalescingmaxvalue = {1, 1, 1, 1, 1, 1, 1, 1},
 127        .bdRingLenTx = {
 128                        TX_BD_RING_LEN,
 129                        TX_BD_RING_LEN,
 130                        TX_BD_RING_LEN,
 131                        TX_BD_RING_LEN,
 132                        TX_BD_RING_LEN,
 133                        TX_BD_RING_LEN,
 134                        TX_BD_RING_LEN,
 135                        TX_BD_RING_LEN},
 136
 137        .bdRingLenRx = {
 138                        RX_BD_RING_LEN,
 139                        RX_BD_RING_LEN,
 140                        RX_BD_RING_LEN,
 141                        RX_BD_RING_LEN,
 142                        RX_BD_RING_LEN,
 143                        RX_BD_RING_LEN,
 144                        RX_BD_RING_LEN,
 145                        RX_BD_RING_LEN},
 146
 147        .numStationAddresses = UCC_GETH_NUM_OF_STATION_ADDRESSES_1,
 148        .largestexternallookupkeysize =
 149            QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE,
 150        .statisticsMode = UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE |
 151                UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX |
 152                UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX,
 153        .vlanOperationTagged = UCC_GETH_VLAN_OPERATION_TAGGED_NOP,
 154        .vlanOperationNonTagged = UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP,
 155        .rxQoSMode = UCC_GETH_QOS_MODE_DEFAULT,
 156        .aufc = UPSMR_AUTOMATIC_FLOW_CONTROL_MODE_NONE,
 157        .padAndCrc = MACCFG2_PAD_AND_CRC_MODE_PAD_AND_CRC,
 158        .numThreadsTx = UCC_GETH_NUM_OF_THREADS_1,
 159        .numThreadsRx = UCC_GETH_NUM_OF_THREADS_1,
 160        .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 161        .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
 162};
 163
 164static struct ucc_geth_info ugeth_info[8];
 165
 166#ifdef DEBUG
 167static void mem_disp(u8 *addr, int size)
 168{
 169        u8 *i;
 170        int size16Aling = (size >> 4) << 4;
 171        int size4Aling = (size >> 2) << 2;
 172        int notAlign = 0;
 173        if (size % 16)
 174                notAlign = 1;
 175
 176        for (i = addr; (u32) i < (u32) addr + size16Aling; i += 16)
 177                printk("0x%08x: %08x %08x %08x %08x\r\n",
 178                       (u32) i,
 179                       *((u32 *) (i)),
 180                       *((u32 *) (i + 4)),
 181                       *((u32 *) (i + 8)), *((u32 *) (i + 12)));
 182        if (notAlign == 1)
 183                printk("0x%08x: ", (u32) i);
 184        for (; (u32) i < (u32) addr + size4Aling; i += 4)
 185                printk("%08x ", *((u32 *) (i)));
 186        for (; (u32) i < (u32) addr + size; i++)
 187                printk("%02x", *((u8 *) (i)));
 188        if (notAlign == 1)
 189                printk("\r\n");
 190}
 191#endif /* DEBUG */
 192
 193static struct list_head *dequeue(struct list_head *lh)
 194{
 195        unsigned long flags;
 196
 197        spin_lock_irqsave(&ugeth_lock, flags);
 198        if (!list_empty(lh)) {
 199                struct list_head *node = lh->next;
 200                list_del(node);
 201                spin_unlock_irqrestore(&ugeth_lock, flags);
 202                return node;
 203        } else {
 204                spin_unlock_irqrestore(&ugeth_lock, flags);
 205                return NULL;
 206        }
 207}
 208
 209static struct sk_buff *get_new_skb(struct ucc_geth_private *ugeth,
 210                u8 __iomem *bd)
 211{
 212        struct sk_buff *skb = NULL;
 213
 214        skb = __skb_dequeue(&ugeth->rx_recycle);
 215        if (!skb)
 216                skb = dev_alloc_skb(ugeth->ug_info->uf_info.max_rx_buf_length +
 217                                    UCC_GETH_RX_DATA_BUF_ALIGNMENT);
 218        if (skb == NULL)
 219                return NULL;
 220
 221        /* We need the data buffer to be aligned properly.  We will reserve
 222         * as many bytes as needed to align the data properly
 223         */
 224        skb_reserve(skb,
 225                    UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 226                    (((unsigned)skb->data) & (UCC_GETH_RX_DATA_BUF_ALIGNMENT -
 227                                              1)));
 228
 229        skb->dev = ugeth->ndev;
 230
 231        out_be32(&((struct qe_bd __iomem *)bd)->buf,
 232                      dma_map_single(ugeth->dev,
 233                                     skb->data,
 234                                     ugeth->ug_info->uf_info.max_rx_buf_length +
 235                                     UCC_GETH_RX_DATA_BUF_ALIGNMENT,
 236                                     DMA_FROM_DEVICE));
 237
 238        out_be32((u32 __iomem *)bd,
 239                        (R_E | R_I | (in_be32((u32 __iomem*)bd) & R_W)));
 240
 241        return skb;
 242}
 243
 244static int rx_bd_buffer_set(struct ucc_geth_private *ugeth, u8 rxQ)
 245{
 246        u8 __iomem *bd;
 247        u32 bd_status;
 248        struct sk_buff *skb;
 249        int i;
 250
 251        bd = ugeth->p_rx_bd_ring[rxQ];
 252        i = 0;
 253
 254        do {
 255                bd_status = in_be32((u32 __iomem *)bd);
 256                skb = get_new_skb(ugeth, bd);
 257
 258                if (!skb)       /* If can not allocate data buffer,
 259                                abort. Cleanup will be elsewhere */
 260                        return -ENOMEM;
 261
 262                ugeth->rx_skbuff[rxQ][i] = skb;
 263
 264                /* advance the BD pointer */
 265                bd += sizeof(struct qe_bd);
 266                i++;
 267        } while (!(bd_status & R_W));
 268
 269        return 0;
 270}
 271
 272static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
 273                                  u32 *p_start,
 274                                  u8 num_entries,
 275                                  u32 thread_size,
 276                                  u32 thread_alignment,
 277                                  unsigned int risc,
 278                                  int skip_page_for_first_entry)
 279{
 280        u32 init_enet_offset;
 281        u8 i;
 282        int snum;
 283
 284        for (i = 0; i < num_entries; i++) {
 285                if ((snum = qe_get_snum()) < 0) {
 286                        if (netif_msg_ifup(ugeth))
 287                                ugeth_err("fill_init_enet_entries: Can not get SNUM.");
 288                        return snum;
 289                }
 290                if ((i == 0) && skip_page_for_first_entry)
 291                /* First entry of Rx does not have page */
 292                        init_enet_offset = 0;
 293                else {
 294                        init_enet_offset =
 295                            qe_muram_alloc(thread_size, thread_alignment);
 296                        if (IS_ERR_VALUE(init_enet_offset)) {
 297                                if (netif_msg_ifup(ugeth))
 298                                        ugeth_err("fill_init_enet_entries: Can not allocate DPRAM memory.");
 299                                qe_put_snum((u8) snum);
 300                                return -ENOMEM;
 301                        }
 302                }
 303                *(p_start++) =
 304                    ((u8) snum << ENET_INIT_PARAM_SNUM_SHIFT) | init_enet_offset
 305                    | risc;
 306        }
 307
 308        return 0;
 309}
 310
 311static int return_init_enet_entries(struct ucc_geth_private *ugeth,
 312                                    u32 *p_start,
 313                                    u8 num_entries,
 314                                    unsigned int risc,
 315                                    int skip_page_for_first_entry)
 316{
 317        u32 init_enet_offset;
 318        u8 i;
 319        int snum;
 320
 321        for (i = 0; i < num_entries; i++) {
 322                u32 val = *p_start;
 323
 324                /* Check that this entry was actually valid --
 325                needed in case failed in allocations */
 326                if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 327                        snum =
 328                            (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
 329                            ENET_INIT_PARAM_SNUM_SHIFT;
 330                        qe_put_snum((u8) snum);
 331                        if (!((i == 0) && skip_page_for_first_entry)) {
 332                        /* First entry of Rx does not have page */
 333                                init_enet_offset =
 334                                    (val & ENET_INIT_PARAM_PTR_MASK);
 335                                qe_muram_free(init_enet_offset);
 336                        }
 337                        *p_start++ = 0;
 338                }
 339        }
 340
 341        return 0;
 342}
 343
 344#ifdef DEBUG
 345static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
 346                                  u32 __iomem *p_start,
 347                                  u8 num_entries,
 348                                  u32 thread_size,
 349                                  unsigned int risc,
 350                                  int skip_page_for_first_entry)
 351{
 352        u32 init_enet_offset;
 353        u8 i;
 354        int snum;
 355
 356        for (i = 0; i < num_entries; i++) {
 357                u32 val = in_be32(p_start);
 358
 359                /* Check that this entry was actually valid --
 360                needed in case failed in allocations */
 361                if ((val & ENET_INIT_PARAM_RISC_MASK) == risc) {
 362                        snum =
 363                            (u32) (val & ENET_INIT_PARAM_SNUM_MASK) >>
 364                            ENET_INIT_PARAM_SNUM_SHIFT;
 365                        qe_put_snum((u8) snum);
 366                        if (!((i == 0) && skip_page_for_first_entry)) {
 367                        /* First entry of Rx does not have page */
 368                                init_enet_offset =
 369                                    (in_be32(p_start) &
 370                                     ENET_INIT_PARAM_PTR_MASK);
 371                                ugeth_info("Init enet entry %d:", i);
 372                                ugeth_info("Base address: 0x%08x",
 373                                           (u32)
 374                                           qe_muram_addr(init_enet_offset));
 375                                mem_disp(qe_muram_addr(init_enet_offset),
 376                                         thread_size);
 377                        }
 378                        p_start++;
 379                }
 380        }
 381
 382        return 0;
 383}
 384#endif
 385
 386static void put_enet_addr_container(struct enet_addr_container *enet_addr_cont)
 387{
 388        kfree(enet_addr_cont);
 389}
 390
 391static void set_mac_addr(__be16 __iomem *reg, u8 *mac)
 392{
 393        out_be16(&reg[0], ((u16)mac[5] << 8) | mac[4]);
 394        out_be16(&reg[1], ((u16)mac[3] << 8) | mac[2]);
 395        out_be16(&reg[2], ((u16)mac[1] << 8) | mac[0]);
 396}
 397
 398static int hw_clear_addr_in_paddr(struct ucc_geth_private *ugeth, u8 paddr_num)
 399{
 400        struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 401
 402        if (!(paddr_num < NUM_OF_PADDRS)) {
 403                ugeth_warn("%s: Illagel paddr_num.", __func__);
 404                return -EINVAL;
 405        }
 406
 407        p_82xx_addr_filt =
 408            (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 409            addressfiltering;
 410
 411        /* Writing address ff.ff.ff.ff.ff.ff disables address
 412        recognition for this register */
 413        out_be16(&p_82xx_addr_filt->paddr[paddr_num].h, 0xffff);
 414        out_be16(&p_82xx_addr_filt->paddr[paddr_num].m, 0xffff);
 415        out_be16(&p_82xx_addr_filt->paddr[paddr_num].l, 0xffff);
 416
 417        return 0;
 418}
 419
 420static void hw_add_addr_in_hash(struct ucc_geth_private *ugeth,
 421                                u8 *p_enet_addr)
 422{
 423        struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
 424        u32 cecr_subblock;
 425
 426        p_82xx_addr_filt =
 427            (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->p_rx_glbl_pram->
 428            addressfiltering;
 429
 430        cecr_subblock =
 431            ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
 432
 433        /* Ethernet frames are defined in Little Endian mode,
 434        therefore to insert */
 435        /* the address to the hash (Big Endian mode), we reverse the bytes.*/
 436
 437        set_mac_addr(&p_82xx_addr_filt->taddr.h, p_enet_addr);
 438
 439        qe_issue_cmd(QE_SET_GROUP_ADDRESS, cecr_subblock,
 440                     QE_CR_PROTOCOL_ETHERNET, 0);
 441}
 442
 443static inline int compare_addr(u8 **addr1, u8 **addr2)
 444{
 445        return memcmp(addr1, addr2, ENET_NUM_OCTETS_PER_ADDRESS);
 446}
 447
 448#ifdef DEBUG
 449static void get_statistics(struct ucc_geth_private *ugeth,
 450                           struct ucc_geth_tx_firmware_statistics *
 451                           tx_firmware_statistics,
 452                           struct ucc_geth_rx_firmware_statistics *
 453                           rx_firmware_statistics,
 454                           struct ucc_geth_hardware_statistics *hardware_statistics)
 455{
 456        struct ucc_fast __iomem *uf_regs;
 457        struct ucc_geth __iomem *ug_regs;
 458        struct ucc_geth_tx_firmware_statistics_pram *p_tx_fw_statistics_pram;
 459        struct ucc_geth_rx_firmware_statistics_pram *p_rx_fw_statistics_pram;
 460
 461        ug_regs = ugeth->ug_regs;
 462        uf_regs = (struct ucc_fast __iomem *) ug_regs;
 463        p_tx_fw_statistics_pram = ugeth->p_tx_fw_statistics_pram;
 464        p_rx_fw_statistics_pram = ugeth->p_rx_fw_statistics_pram;
 465
 466        /* Tx firmware only if user handed pointer and driver actually
 467        gathers Tx firmware statistics */
 468        if (tx_firmware_statistics && p_tx_fw_statistics_pram) {
 469                tx_firmware_statistics->sicoltx =
 470                    in_be32(&p_tx_fw_statistics_pram->sicoltx);
 471                tx_firmware_statistics->mulcoltx =
 472                    in_be32(&p_tx_fw_statistics_pram->mulcoltx);
 473                tx_firmware_statistics->latecoltxfr =
 474                    in_be32(&p_tx_fw_statistics_pram->latecoltxfr);
 475                tx_firmware_statistics->frabortduecol =
 476                    in_be32(&p_tx_fw_statistics_pram->frabortduecol);
 477                tx_firmware_statistics->frlostinmactxer =
 478                    in_be32(&p_tx_fw_statistics_pram->frlostinmactxer);
 479                tx_firmware_statistics->carriersenseertx =
 480                    in_be32(&p_tx_fw_statistics_pram->carriersenseertx);
 481                tx_firmware_statistics->frtxok =
 482                    in_be32(&p_tx_fw_statistics_pram->frtxok);
 483                tx_firmware_statistics->txfrexcessivedefer =
 484                    in_be32(&p_tx_fw_statistics_pram->txfrexcessivedefer);
 485                tx_firmware_statistics->txpkts256 =
 486                    in_be32(&p_tx_fw_statistics_pram->txpkts256);
 487                tx_firmware_statistics->txpkts512 =
 488                    in_be32(&p_tx_fw_statistics_pram->txpkts512);
 489                tx_firmware_statistics->txpkts1024 =
 490                    in_be32(&p_tx_fw_statistics_pram->txpkts1024);
 491                tx_firmware_statistics->txpktsjumbo =
 492                    in_be32(&p_tx_fw_statistics_pram->txpktsjumbo);
 493        }
 494
 495        /* Rx firmware only if user handed pointer and driver actually
 496         * gathers Rx firmware statistics */
 497        if (rx_firmware_statistics && p_rx_fw_statistics_pram) {
 498                int i;
 499                rx_firmware_statistics->frrxfcser =
 500                    in_be32(&p_rx_fw_statistics_pram->frrxfcser);
 501                rx_firmware_statistics->fraligner =
 502                    in_be32(&p_rx_fw_statistics_pram->fraligner);
 503                rx_firmware_statistics->inrangelenrxer =
 504                    in_be32(&p_rx_fw_statistics_pram->inrangelenrxer);
 505                rx_firmware_statistics->outrangelenrxer =
 506                    in_be32(&p_rx_fw_statistics_pram->outrangelenrxer);
 507                rx_firmware_statistics->frtoolong =
 508                    in_be32(&p_rx_fw_statistics_pram->frtoolong);
 509                rx_firmware_statistics->runt =
 510                    in_be32(&p_rx_fw_statistics_pram->runt);
 511                rx_firmware_statistics->verylongevent =
 512                    in_be32(&p_rx_fw_statistics_pram->verylongevent);
 513                rx_firmware_statistics->symbolerror =
 514                    in_be32(&p_rx_fw_statistics_pram->symbolerror);
 515                rx_firmware_statistics->dropbsy =
 516                    in_be32(&p_rx_fw_statistics_pram->dropbsy);
 517                for (i = 0; i < 0x8; i++)
 518                        rx_firmware_statistics->res0[i] =
 519                            p_rx_fw_statistics_pram->res0[i];
 520                rx_firmware_statistics->mismatchdrop =
 521                    in_be32(&p_rx_fw_statistics_pram->mismatchdrop);
 522                rx_firmware_statistics->underpkts =
 523                    in_be32(&p_rx_fw_statistics_pram->underpkts);
 524                rx_firmware_statistics->pkts256 =
 525                    in_be32(&p_rx_fw_statistics_pram->pkts256);
 526                rx_firmware_statistics->pkts512 =
 527                    in_be32(&p_rx_fw_statistics_pram->pkts512);
 528                rx_firmware_statistics->pkts1024 =
 529                    in_be32(&p_rx_fw_statistics_pram->pkts1024);
 530                rx_firmware_statistics->pktsjumbo =
 531                    in_be32(&p_rx_fw_statistics_pram->pktsjumbo);
 532                rx_firmware_statistics->frlossinmacer =
 533                    in_be32(&p_rx_fw_statistics_pram->frlossinmacer);
 534                rx_firmware_statistics->pausefr =
 535                    in_be32(&p_rx_fw_statistics_pram->pausefr);
 536                for (i = 0; i < 0x4; i++)
 537                        rx_firmware_statistics->res1[i] =
 538                            p_rx_fw_statistics_pram->res1[i];
 539                rx_firmware_statistics->removevlan =
 540                    in_be32(&p_rx_fw_statistics_pram->removevlan);
 541                rx_firmware_statistics->replacevlan =
 542                    in_be32(&p_rx_fw_statistics_pram->replacevlan);
 543                rx_firmware_statistics->insertvlan =
 544                    in_be32(&p_rx_fw_statistics_pram->insertvlan);
 545        }
 546
 547        /* Hardware only if user handed pointer and driver actually
 548        gathers hardware statistics */
 549        if (hardware_statistics &&
 550            (in_be32(&uf_regs->upsmr) & UCC_GETH_UPSMR_HSE)) {
 551                hardware_statistics->tx64 = in_be32(&ug_regs->tx64);
 552                hardware_statistics->tx127 = in_be32(&ug_regs->tx127);
 553                hardware_statistics->tx255 = in_be32(&ug_regs->tx255);
 554                hardware_statistics->rx64 = in_be32(&ug_regs->rx64);
 555                hardware_statistics->rx127 = in_be32(&ug_regs->rx127);
 556                hardware_statistics->rx255 = in_be32(&ug_regs->rx255);
 557                hardware_statistics->txok = in_be32(&ug_regs->txok);
 558                hardware_statistics->txcf = in_be16(&ug_regs->txcf);
 559                hardware_statistics->tmca = in_be32(&ug_regs->tmca);
 560                hardware_statistics->tbca = in_be32(&ug_regs->tbca);
 561                hardware_statistics->rxfok = in_be32(&ug_regs->rxfok);
 562                hardware_statistics->rxbok = in_be32(&ug_regs->rxbok);
 563                hardware_statistics->rbyt = in_be32(&ug_regs->rbyt);
 564                hardware_statistics->rmca = in_be32(&ug_regs->rmca);
 565                hardware_statistics->rbca = in_be32(&ug_regs->rbca);
 566        }
 567}
 568
 569static void dump_bds(struct ucc_geth_private *ugeth)
 570{
 571        int i;
 572        int length;
 573
 574        for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 575                if (ugeth->p_tx_bd_ring[i]) {
 576                        length =
 577                            (ugeth->ug_info->bdRingLenTx[i] *
 578                             sizeof(struct qe_bd));
 579                        ugeth_info("TX BDs[%d]", i);
 580                        mem_disp(ugeth->p_tx_bd_ring[i], length);
 581                }
 582        }
 583        for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 584                if (ugeth->p_rx_bd_ring[i]) {
 585                        length =
 586                            (ugeth->ug_info->bdRingLenRx[i] *
 587                             sizeof(struct qe_bd));
 588                        ugeth_info("RX BDs[%d]", i);
 589                        mem_disp(ugeth->p_rx_bd_ring[i], length);
 590                }
 591        }
 592}
 593
 594static void dump_regs(struct ucc_geth_private *ugeth)
 595{
 596        int i;
 597
 598        ugeth_info("UCC%d Geth registers:", ugeth->ug_info->uf_info.ucc_num + 1);
 599        ugeth_info("Base address: 0x%08x", (u32) ugeth->ug_regs);
 600
 601        ugeth_info("maccfg1    : addr - 0x%08x, val - 0x%08x",
 602                   (u32) & ugeth->ug_regs->maccfg1,
 603                   in_be32(&ugeth->ug_regs->maccfg1));
 604        ugeth_info("maccfg2    : addr - 0x%08x, val - 0x%08x",
 605                   (u32) & ugeth->ug_regs->maccfg2,
 606                   in_be32(&ugeth->ug_regs->maccfg2));
 607        ugeth_info("ipgifg     : addr - 0x%08x, val - 0x%08x",
 608                   (u32) & ugeth->ug_regs->ipgifg,
 609                   in_be32(&ugeth->ug_regs->ipgifg));
 610        ugeth_info("hafdup     : addr - 0x%08x, val - 0x%08x",
 611                   (u32) & ugeth->ug_regs->hafdup,
 612                   in_be32(&ugeth->ug_regs->hafdup));
 613        ugeth_info("ifctl      : addr - 0x%08x, val - 0x%08x",
 614                   (u32) & ugeth->ug_regs->ifctl,
 615                   in_be32(&ugeth->ug_regs->ifctl));
 616        ugeth_info("ifstat     : addr - 0x%08x, val - 0x%08x",
 617                   (u32) & ugeth->ug_regs->ifstat,
 618                   in_be32(&ugeth->ug_regs->ifstat));
 619        ugeth_info("macstnaddr1: addr - 0x%08x, val - 0x%08x",
 620                   (u32) & ugeth->ug_regs->macstnaddr1,
 621                   in_be32(&ugeth->ug_regs->macstnaddr1));
 622        ugeth_info("macstnaddr2: addr - 0x%08x, val - 0x%08x",
 623                   (u32) & ugeth->ug_regs->macstnaddr2,
 624                   in_be32(&ugeth->ug_regs->macstnaddr2));
 625        ugeth_info("uempr      : addr - 0x%08x, val - 0x%08x",
 626                   (u32) & ugeth->ug_regs->uempr,
 627                   in_be32(&ugeth->ug_regs->uempr));
 628        ugeth_info("utbipar    : addr - 0x%08x, val - 0x%08x",
 629                   (u32) & ugeth->ug_regs->utbipar,
 630                   in_be32(&ugeth->ug_regs->utbipar));
 631        ugeth_info("uescr      : addr - 0x%08x, val - 0x%04x",
 632                   (u32) & ugeth->ug_regs->uescr,
 633                   in_be16(&ugeth->ug_regs->uescr));
 634        ugeth_info("tx64       : addr - 0x%08x, val - 0x%08x",
 635                   (u32) & ugeth->ug_regs->tx64,
 636                   in_be32(&ugeth->ug_regs->tx64));
 637        ugeth_info("tx127      : addr - 0x%08x, val - 0x%08x",
 638                   (u32) & ugeth->ug_regs->tx127,
 639                   in_be32(&ugeth->ug_regs->tx127));
 640        ugeth_info("tx255      : addr - 0x%08x, val - 0x%08x",
 641                   (u32) & ugeth->ug_regs->tx255,
 642                   in_be32(&ugeth->ug_regs->tx255));
 643        ugeth_info("rx64       : addr - 0x%08x, val - 0x%08x",
 644                   (u32) & ugeth->ug_regs->rx64,
 645                   in_be32(&ugeth->ug_regs->rx64));
 646        ugeth_info("rx127      : addr - 0x%08x, val - 0x%08x",
 647                   (u32) & ugeth->ug_regs->rx127,
 648                   in_be32(&ugeth->ug_regs->rx127));
 649        ugeth_info("rx255      : addr - 0x%08x, val - 0x%08x",
 650                   (u32) & ugeth->ug_regs->rx255,
 651                   in_be32(&ugeth->ug_regs->rx255));
 652        ugeth_info("txok       : addr - 0x%08x, val - 0x%08x",
 653                   (u32) & ugeth->ug_regs->txok,
 654                   in_be32(&ugeth->ug_regs->txok));
 655        ugeth_info("txcf       : addr - 0x%08x, val - 0x%04x",
 656                   (u32) & ugeth->ug_regs->txcf,
 657                   in_be16(&ugeth->ug_regs->txcf));
 658        ugeth_info("tmca       : addr - 0x%08x, val - 0x%08x",
 659                   (u32) & ugeth->ug_regs->tmca,
 660                   in_be32(&ugeth->ug_regs->tmca));
 661        ugeth_info("tbca       : addr - 0x%08x, val - 0x%08x",
 662                   (u32) & ugeth->ug_regs->tbca,
 663                   in_be32(&ugeth->ug_regs->tbca));
 664        ugeth_info("rxfok      : addr - 0x%08x, val - 0x%08x",
 665                   (u32) & ugeth->ug_regs->rxfok,
 666                   in_be32(&ugeth->ug_regs->rxfok));
 667        ugeth_info("rxbok      : addr - 0x%08x, val - 0x%08x",
 668                   (u32) & ugeth->ug_regs->rxbok,
 669                   in_be32(&ugeth->ug_regs->rxbok));
 670        ugeth_info("rbyt       : addr - 0x%08x, val - 0x%08x",
 671                   (u32) & ugeth->ug_regs->rbyt,
 672                   in_be32(&ugeth->ug_regs->rbyt));
 673        ugeth_info("rmca       : addr - 0x%08x, val - 0x%08x",
 674                   (u32) & ugeth->ug_regs->rmca,
 675                   in_be32(&ugeth->ug_regs->rmca));
 676        ugeth_info("rbca       : addr - 0x%08x, val - 0x%08x",
 677                   (u32) & ugeth->ug_regs->rbca,
 678                   in_be32(&ugeth->ug_regs->rbca));
 679        ugeth_info("scar       : addr - 0x%08x, val - 0x%08x",
 680                   (u32) & ugeth->ug_regs->scar,
 681                   in_be32(&ugeth->ug_regs->scar));
 682        ugeth_info("scam       : addr - 0x%08x, val - 0x%08x",
 683                   (u32) & ugeth->ug_regs->scam,
 684                   in_be32(&ugeth->ug_regs->scam));
 685
 686        if (ugeth->p_thread_data_tx) {
 687                int numThreadsTxNumerical;
 688                switch (ugeth->ug_info->numThreadsTx) {
 689                case UCC_GETH_NUM_OF_THREADS_1:
 690                        numThreadsTxNumerical = 1;
 691                        break;
 692                case UCC_GETH_NUM_OF_THREADS_2:
 693                        numThreadsTxNumerical = 2;
 694                        break;
 695                case UCC_GETH_NUM_OF_THREADS_4:
 696                        numThreadsTxNumerical = 4;
 697                        break;
 698                case UCC_GETH_NUM_OF_THREADS_6:
 699                        numThreadsTxNumerical = 6;
 700                        break;
 701                case UCC_GETH_NUM_OF_THREADS_8:
 702                        numThreadsTxNumerical = 8;
 703                        break;
 704                default:
 705                        numThreadsTxNumerical = 0;
 706                        break;
 707                }
 708
 709                ugeth_info("Thread data TXs:");
 710                ugeth_info("Base address: 0x%08x",
 711                           (u32) ugeth->p_thread_data_tx);
 712                for (i = 0; i < numThreadsTxNumerical; i++) {
 713                        ugeth_info("Thread data TX[%d]:", i);
 714                        ugeth_info("Base address: 0x%08x",
 715                                   (u32) & ugeth->p_thread_data_tx[i]);
 716                        mem_disp((u8 *) & ugeth->p_thread_data_tx[i],
 717                                 sizeof(struct ucc_geth_thread_data_tx));
 718                }
 719        }
 720        if (ugeth->p_thread_data_rx) {
 721                int numThreadsRxNumerical;
 722                switch (ugeth->ug_info->numThreadsRx) {
 723                case UCC_GETH_NUM_OF_THREADS_1:
 724                        numThreadsRxNumerical = 1;
 725                        break;
 726                case UCC_GETH_NUM_OF_THREADS_2:
 727                        numThreadsRxNumerical = 2;
 728                        break;
 729                case UCC_GETH_NUM_OF_THREADS_4:
 730                        numThreadsRxNumerical = 4;
 731                        break;
 732                case UCC_GETH_NUM_OF_THREADS_6:
 733                        numThreadsRxNumerical = 6;
 734                        break;
 735                case UCC_GETH_NUM_OF_THREADS_8:
 736                        numThreadsRxNumerical = 8;
 737                        break;
 738                default:
 739                        numThreadsRxNumerical = 0;
 740                        break;
 741                }
 742
 743                ugeth_info("Thread data RX:");
 744                ugeth_info("Base address: 0x%08x",
 745                           (u32) ugeth->p_thread_data_rx);
 746                for (i = 0; i < numThreadsRxNumerical; i++) {
 747                        ugeth_info("Thread data RX[%d]:", i);
 748                        ugeth_info("Base address: 0x%08x",
 749                                   (u32) & ugeth->p_thread_data_rx[i]);
 750                        mem_disp((u8 *) & ugeth->p_thread_data_rx[i],
 751                                 sizeof(struct ucc_geth_thread_data_rx));
 752                }
 753        }
 754        if (ugeth->p_exf_glbl_param) {
 755                ugeth_info("EXF global param:");
 756                ugeth_info("Base address: 0x%08x",
 757                           (u32) ugeth->p_exf_glbl_param);
 758                mem_disp((u8 *) ugeth->p_exf_glbl_param,
 759                         sizeof(*ugeth->p_exf_glbl_param));
 760        }
 761        if (ugeth->p_tx_glbl_pram) {
 762                ugeth_info("TX global param:");
 763                ugeth_info("Base address: 0x%08x", (u32) ugeth->p_tx_glbl_pram);
 764                ugeth_info("temoder      : addr - 0x%08x, val - 0x%04x",
 765                           (u32) & ugeth->p_tx_glbl_pram->temoder,
 766                           in_be16(&ugeth->p_tx_glbl_pram->temoder));
 767                ugeth_info("sqptr        : addr - 0x%08x, val - 0x%08x",
 768                           (u32) & ugeth->p_tx_glbl_pram->sqptr,
 769                           in_be32(&ugeth->p_tx_glbl_pram->sqptr));
 770                ugeth_info("schedulerbasepointer: addr - 0x%08x, val - 0x%08x",
 771                           (u32) & ugeth->p_tx_glbl_pram->schedulerbasepointer,
 772                           in_be32(&ugeth->p_tx_glbl_pram->
 773                                   schedulerbasepointer));
 774                ugeth_info("txrmonbaseptr: addr - 0x%08x, val - 0x%08x",
 775                           (u32) & ugeth->p_tx_glbl_pram->txrmonbaseptr,
 776                           in_be32(&ugeth->p_tx_glbl_pram->txrmonbaseptr));
 777                ugeth_info("tstate       : addr - 0x%08x, val - 0x%08x",
 778                           (u32) & ugeth->p_tx_glbl_pram->tstate,
 779                           in_be32(&ugeth->p_tx_glbl_pram->tstate));
 780                ugeth_info("iphoffset[0] : addr - 0x%08x, val - 0x%02x",
 781                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[0],
 782                           ugeth->p_tx_glbl_pram->iphoffset[0]);
 783                ugeth_info("iphoffset[1] : addr - 0x%08x, val - 0x%02x",
 784                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[1],
 785                           ugeth->p_tx_glbl_pram->iphoffset[1]);
 786                ugeth_info("iphoffset[2] : addr - 0x%08x, val - 0x%02x",
 787                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[2],
 788                           ugeth->p_tx_glbl_pram->iphoffset[2]);
 789                ugeth_info("iphoffset[3] : addr - 0x%08x, val - 0x%02x",
 790                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[3],
 791                           ugeth->p_tx_glbl_pram->iphoffset[3]);
 792                ugeth_info("iphoffset[4] : addr - 0x%08x, val - 0x%02x",
 793                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[4],
 794                           ugeth->p_tx_glbl_pram->iphoffset[4]);
 795                ugeth_info("iphoffset[5] : addr - 0x%08x, val - 0x%02x",
 796                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[5],
 797                           ugeth->p_tx_glbl_pram->iphoffset[5]);
 798                ugeth_info("iphoffset[6] : addr - 0x%08x, val - 0x%02x",
 799                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[6],
 800                           ugeth->p_tx_glbl_pram->iphoffset[6]);
 801                ugeth_info("iphoffset[7] : addr - 0x%08x, val - 0x%02x",
 802                           (u32) & ugeth->p_tx_glbl_pram->iphoffset[7],
 803                           ugeth->p_tx_glbl_pram->iphoffset[7]);
 804                ugeth_info("vtagtable[0] : addr - 0x%08x, val - 0x%08x",
 805                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[0],
 806                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[0]));
 807                ugeth_info("vtagtable[1] : addr - 0x%08x, val - 0x%08x",
 808                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[1],
 809                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[1]));
 810                ugeth_info("vtagtable[2] : addr - 0x%08x, val - 0x%08x",
 811                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[2],
 812                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[2]));
 813                ugeth_info("vtagtable[3] : addr - 0x%08x, val - 0x%08x",
 814                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[3],
 815                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[3]));
 816                ugeth_info("vtagtable[4] : addr - 0x%08x, val - 0x%08x",
 817                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[4],
 818                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[4]));
 819                ugeth_info("vtagtable[5] : addr - 0x%08x, val - 0x%08x",
 820                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[5],
 821                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[5]));
 822                ugeth_info("vtagtable[6] : addr - 0x%08x, val - 0x%08x",
 823                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[6],
 824                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[6]));
 825                ugeth_info("vtagtable[7] : addr - 0x%08x, val - 0x%08x",
 826                           (u32) & ugeth->p_tx_glbl_pram->vtagtable[7],
 827                           in_be32(&ugeth->p_tx_glbl_pram->vtagtable[7]));
 828                ugeth_info("tqptr        : addr - 0x%08x, val - 0x%08x",
 829                           (u32) & ugeth->p_tx_glbl_pram->tqptr,
 830                           in_be32(&ugeth->p_tx_glbl_pram->tqptr));
 831        }
 832        if (ugeth->p_rx_glbl_pram) {
 833                ugeth_info("RX global param:");
 834                ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_glbl_pram);
 835                ugeth_info("remoder         : addr - 0x%08x, val - 0x%08x",
 836                           (u32) & ugeth->p_rx_glbl_pram->remoder,
 837                           in_be32(&ugeth->p_rx_glbl_pram->remoder));
 838                ugeth_info("rqptr           : addr - 0x%08x, val - 0x%08x",
 839                           (u32) & ugeth->p_rx_glbl_pram->rqptr,
 840                           in_be32(&ugeth->p_rx_glbl_pram->rqptr));
 841                ugeth_info("typeorlen       : addr - 0x%08x, val - 0x%04x",
 842                           (u32) & ugeth->p_rx_glbl_pram->typeorlen,
 843                           in_be16(&ugeth->p_rx_glbl_pram->typeorlen));
 844                ugeth_info("rxgstpack       : addr - 0x%08x, val - 0x%02x",
 845                           (u32) & ugeth->p_rx_glbl_pram->rxgstpack,
 846                           ugeth->p_rx_glbl_pram->rxgstpack);
 847                ugeth_info("rxrmonbaseptr   : addr - 0x%08x, val - 0x%08x",
 848                           (u32) & ugeth->p_rx_glbl_pram->rxrmonbaseptr,
 849                           in_be32(&ugeth->p_rx_glbl_pram->rxrmonbaseptr));
 850                ugeth_info("intcoalescingptr: addr - 0x%08x, val - 0x%08x",
 851                           (u32) & ugeth->p_rx_glbl_pram->intcoalescingptr,
 852                           in_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr));
 853                ugeth_info("rstate          : addr - 0x%08x, val - 0x%02x",
 854                           (u32) & ugeth->p_rx_glbl_pram->rstate,
 855                           ugeth->p_rx_glbl_pram->rstate);
 856                ugeth_info("mrblr           : addr - 0x%08x, val - 0x%04x",
 857                           (u32) & ugeth->p_rx_glbl_pram->mrblr,
 858                           in_be16(&ugeth->p_rx_glbl_pram->mrblr));
 859                ugeth_info("rbdqptr         : addr - 0x%08x, val - 0x%08x",
 860                           (u32) & ugeth->p_rx_glbl_pram->rbdqptr,
 861                           in_be32(&ugeth->p_rx_glbl_pram->rbdqptr));
 862                ugeth_info("mflr            : addr - 0x%08x, val - 0x%04x",
 863                           (u32) & ugeth->p_rx_glbl_pram->mflr,
 864                           in_be16(&ugeth->p_rx_glbl_pram->mflr));
 865                ugeth_info("minflr          : addr - 0x%08x, val - 0x%04x",
 866                           (u32) & ugeth->p_rx_glbl_pram->minflr,
 867                           in_be16(&ugeth->p_rx_glbl_pram->minflr));
 868                ugeth_info("maxd1           : addr - 0x%08x, val - 0x%04x",
 869                           (u32) & ugeth->p_rx_glbl_pram->maxd1,
 870                           in_be16(&ugeth->p_rx_glbl_pram->maxd1));
 871                ugeth_info("maxd2           : addr - 0x%08x, val - 0x%04x",
 872                           (u32) & ugeth->p_rx_glbl_pram->maxd2,
 873                           in_be16(&ugeth->p_rx_glbl_pram->maxd2));
 874                ugeth_info("ecamptr         : addr - 0x%08x, val - 0x%08x",
 875                           (u32) & ugeth->p_rx_glbl_pram->ecamptr,
 876                           in_be32(&ugeth->p_rx_glbl_pram->ecamptr));
 877                ugeth_info("l2qt            : addr - 0x%08x, val - 0x%08x",
 878                           (u32) & ugeth->p_rx_glbl_pram->l2qt,
 879                           in_be32(&ugeth->p_rx_glbl_pram->l2qt));
 880                ugeth_info("l3qt[0]         : addr - 0x%08x, val - 0x%08x",
 881                           (u32) & ugeth->p_rx_glbl_pram->l3qt[0],
 882                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[0]));
 883                ugeth_info("l3qt[1]         : addr - 0x%08x, val - 0x%08x",
 884                           (u32) & ugeth->p_rx_glbl_pram->l3qt[1],
 885                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[1]));
 886                ugeth_info("l3qt[2]         : addr - 0x%08x, val - 0x%08x",
 887                           (u32) & ugeth->p_rx_glbl_pram->l3qt[2],
 888                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[2]));
 889                ugeth_info("l3qt[3]         : addr - 0x%08x, val - 0x%08x",
 890                           (u32) & ugeth->p_rx_glbl_pram->l3qt[3],
 891                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[3]));
 892                ugeth_info("l3qt[4]         : addr - 0x%08x, val - 0x%08x",
 893                           (u32) & ugeth->p_rx_glbl_pram->l3qt[4],
 894                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[4]));
 895                ugeth_info("l3qt[5]         : addr - 0x%08x, val - 0x%08x",
 896                           (u32) & ugeth->p_rx_glbl_pram->l3qt[5],
 897                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[5]));
 898                ugeth_info("l3qt[6]         : addr - 0x%08x, val - 0x%08x",
 899                           (u32) & ugeth->p_rx_glbl_pram->l3qt[6],
 900                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[6]));
 901                ugeth_info("l3qt[7]         : addr - 0x%08x, val - 0x%08x",
 902                           (u32) & ugeth->p_rx_glbl_pram->l3qt[7],
 903                           in_be32(&ugeth->p_rx_glbl_pram->l3qt[7]));
 904                ugeth_info("vlantype        : addr - 0x%08x, val - 0x%04x",
 905                           (u32) & ugeth->p_rx_glbl_pram->vlantype,
 906                           in_be16(&ugeth->p_rx_glbl_pram->vlantype));
 907                ugeth_info("vlantci         : addr - 0x%08x, val - 0x%04x",
 908                           (u32) & ugeth->p_rx_glbl_pram->vlantci,
 909                           in_be16(&ugeth->p_rx_glbl_pram->vlantci));
 910                for (i = 0; i < 64; i++)
 911                        ugeth_info
 912                    ("addressfiltering[%d]: addr - 0x%08x, val - 0x%02x",
 913                             i,
 914                             (u32) & ugeth->p_rx_glbl_pram->addressfiltering[i],
 915                             ugeth->p_rx_glbl_pram->addressfiltering[i]);
 916                ugeth_info("exfGlobalParam  : addr - 0x%08x, val - 0x%08x",
 917                           (u32) & ugeth->p_rx_glbl_pram->exfGlobalParam,
 918                           in_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam));
 919        }
 920        if (ugeth->p_send_q_mem_reg) {
 921                ugeth_info("Send Q memory registers:");
 922                ugeth_info("Base address: 0x%08x",
 923                           (u32) ugeth->p_send_q_mem_reg);
 924                for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
 925                        ugeth_info("SQQD[%d]:", i);
 926                        ugeth_info("Base address: 0x%08x",
 927                                   (u32) & ugeth->p_send_q_mem_reg->sqqd[i]);
 928                        mem_disp((u8 *) & ugeth->p_send_q_mem_reg->sqqd[i],
 929                                 sizeof(struct ucc_geth_send_queue_qd));
 930                }
 931        }
 932        if (ugeth->p_scheduler) {
 933                ugeth_info("Scheduler:");
 934                ugeth_info("Base address: 0x%08x", (u32) ugeth->p_scheduler);
 935                mem_disp((u8 *) ugeth->p_scheduler,
 936                         sizeof(*ugeth->p_scheduler));
 937        }
 938        if (ugeth->p_tx_fw_statistics_pram) {
 939                ugeth_info("TX FW statistics pram:");
 940                ugeth_info("Base address: 0x%08x",
 941                           (u32) ugeth->p_tx_fw_statistics_pram);
 942                mem_disp((u8 *) ugeth->p_tx_fw_statistics_pram,
 943                         sizeof(*ugeth->p_tx_fw_statistics_pram));
 944        }
 945        if (ugeth->p_rx_fw_statistics_pram) {
 946                ugeth_info("RX FW statistics pram:");
 947                ugeth_info("Base address: 0x%08x",
 948                           (u32) ugeth->p_rx_fw_statistics_pram);
 949                mem_disp((u8 *) ugeth->p_rx_fw_statistics_pram,
 950                         sizeof(*ugeth->p_rx_fw_statistics_pram));
 951        }
 952        if (ugeth->p_rx_irq_coalescing_tbl) {
 953                ugeth_info("RX IRQ coalescing tables:");
 954                ugeth_info("Base address: 0x%08x",
 955                           (u32) ugeth->p_rx_irq_coalescing_tbl);
 956                for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 957                        ugeth_info("RX IRQ coalescing table entry[%d]:", i);
 958                        ugeth_info("Base address: 0x%08x",
 959                                   (u32) & ugeth->p_rx_irq_coalescing_tbl->
 960                                   coalescingentry[i]);
 961                        ugeth_info
 962                ("interruptcoalescingmaxvalue: addr - 0x%08x, val - 0x%08x",
 963                             (u32) & ugeth->p_rx_irq_coalescing_tbl->
 964                             coalescingentry[i].interruptcoalescingmaxvalue,
 965                             in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 966                                     coalescingentry[i].
 967                                     interruptcoalescingmaxvalue));
 968                        ugeth_info
 969                ("interruptcoalescingcounter : addr - 0x%08x, val - 0x%08x",
 970                             (u32) & ugeth->p_rx_irq_coalescing_tbl->
 971                             coalescingentry[i].interruptcoalescingcounter,
 972                             in_be32(&ugeth->p_rx_irq_coalescing_tbl->
 973                                     coalescingentry[i].
 974                                     interruptcoalescingcounter));
 975                }
 976        }
 977        if (ugeth->p_rx_bd_qs_tbl) {
 978                ugeth_info("RX BD QS tables:");
 979                ugeth_info("Base address: 0x%08x", (u32) ugeth->p_rx_bd_qs_tbl);
 980                for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
 981                        ugeth_info("RX BD QS table[%d]:", i);
 982                        ugeth_info("Base address: 0x%08x",
 983                                   (u32) & ugeth->p_rx_bd_qs_tbl[i]);
 984                        ugeth_info
 985                            ("bdbaseptr        : addr - 0x%08x, val - 0x%08x",
 986                             (u32) & ugeth->p_rx_bd_qs_tbl[i].bdbaseptr,
 987                             in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdbaseptr));
 988                        ugeth_info
 989                            ("bdptr            : addr - 0x%08x, val - 0x%08x",
 990                             (u32) & ugeth->p_rx_bd_qs_tbl[i].bdptr,
 991                             in_be32(&ugeth->p_rx_bd_qs_tbl[i].bdptr));
 992                        ugeth_info
 993                            ("externalbdbaseptr: addr - 0x%08x, val - 0x%08x",
 994                             (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
 995                             in_be32(&ugeth->p_rx_bd_qs_tbl[i].
 996                                     externalbdbaseptr));
 997                        ugeth_info
 998                            ("externalbdptr    : addr - 0x%08x, val - 0x%08x",
 999                             (u32) & ugeth->p_rx_bd_qs_tbl[i].externalbdptr,
1000                             in_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdptr));
1001                        ugeth_info("ucode RX Prefetched BDs:");
1002                        ugeth_info("Base address: 0x%08x",
1003                                   (u32)
1004                                   qe_muram_addr(in_be32
1005                                                 (&ugeth->p_rx_bd_qs_tbl[i].
1006                                                  bdbaseptr)));
1007                        mem_disp((u8 *)
1008                                 qe_muram_addr(in_be32
1009                                               (&ugeth->p_rx_bd_qs_tbl[i].
1010                                                bdbaseptr)),
1011                                 sizeof(struct ucc_geth_rx_prefetched_bds));
1012                }
1013        }
1014        if (ugeth->p_init_enet_param_shadow) {
1015                int size;
1016                ugeth_info("Init enet param shadow:");
1017                ugeth_info("Base address: 0x%08x",
1018                           (u32) ugeth->p_init_enet_param_shadow);
1019                mem_disp((u8 *) ugeth->p_init_enet_param_shadow,
1020                         sizeof(*ugeth->p_init_enet_param_shadow));
1021
1022                size = sizeof(struct ucc_geth_thread_rx_pram);
1023                if (ugeth->ug_info->rxExtendedFiltering) {
1024                        size +=
1025                            THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
1026                        if (ugeth->ug_info->largestexternallookupkeysize ==
1027                            QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
1028                                size +=
1029                        THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
1030                        if (ugeth->ug_info->largestexternallookupkeysize ==
1031                            QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
1032                                size +=
1033                        THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
1034                }
1035
1036                dump_init_enet_entries(ugeth,
1037                                       &(ugeth->p_init_enet_param_shadow->
1038                                         txthread[0]),
1039                                       ENET_INIT_PARAM_MAX_ENTRIES_TX,
1040                                       sizeof(struct ucc_geth_thread_tx_pram),
1041                                       ugeth->ug_info->riscTx, 0);
1042                dump_init_enet_entries(ugeth,
1043                                       &(ugeth->p_init_enet_param_shadow->
1044                                         rxthread[0]),
1045                                       ENET_INIT_PARAM_MAX_ENTRIES_RX, size,
1046                                       ugeth->ug_info->riscRx, 1);
1047        }
1048}
1049#endif /* DEBUG */
1050
1051static void init_default_reg_vals(u32 __iomem *upsmr_register,
1052                                  u32 __iomem *maccfg1_register,
1053                                  u32 __iomem *maccfg2_register)
1054{
1055        out_be32(upsmr_register, UCC_GETH_UPSMR_INIT);
1056        out_be32(maccfg1_register, UCC_GETH_MACCFG1_INIT);
1057        out_be32(maccfg2_register, UCC_GETH_MACCFG2_INIT);
1058}
1059
1060static int init_half_duplex_params(int alt_beb,
1061                                   int back_pressure_no_backoff,
1062                                   int no_backoff,
1063                                   int excess_defer,
1064                                   u8 alt_beb_truncation,
1065                                   u8 max_retransmissions,
1066                                   u8 collision_window,
1067                                   u32 __iomem *hafdup_register)
1068{
1069        u32 value = 0;
1070
1071        if ((alt_beb_truncation > HALFDUP_ALT_BEB_TRUNCATION_MAX) ||
1072            (max_retransmissions > HALFDUP_MAX_RETRANSMISSION_MAX) ||
1073            (collision_window > HALFDUP_COLLISION_WINDOW_MAX))
1074                return -EINVAL;
1075
1076        value = (u32) (alt_beb_truncation << HALFDUP_ALT_BEB_TRUNCATION_SHIFT);
1077
1078        if (alt_beb)
1079                value |= HALFDUP_ALT_BEB;
1080        if (back_pressure_no_backoff)
1081                value |= HALFDUP_BACK_PRESSURE_NO_BACKOFF;
1082        if (no_backoff)
1083                value |= HALFDUP_NO_BACKOFF;
1084        if (excess_defer)
1085                value |= HALFDUP_EXCESSIVE_DEFER;
1086
1087        value |= (max_retransmissions << HALFDUP_MAX_RETRANSMISSION_SHIFT);
1088
1089        value |= collision_window;
1090
1091        out_be32(hafdup_register, value);
1092        return 0;
1093}
1094
1095static int init_inter_frame_gap_params(u8 non_btb_cs_ipg,
1096                                       u8 non_btb_ipg,
1097                                       u8 min_ifg,
1098                                       u8 btb_ipg,
1099                                       u32 __iomem *ipgifg_register)
1100{
1101        u32 value = 0;
1102
1103        /* Non-Back-to-back IPG part 1 should be <= Non-Back-to-back
1104        IPG part 2 */
1105        if (non_btb_cs_ipg > non_btb_ipg)
1106                return -EINVAL;
1107
1108        if ((non_btb_cs_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART1_MAX) ||
1109            (non_btb_ipg > IPGIFG_NON_BACK_TO_BACK_IFG_PART2_MAX) ||
1110            /*(min_ifg        > IPGIFG_MINIMUM_IFG_ENFORCEMENT_MAX) || */
1111            (btb_ipg > IPGIFG_BACK_TO_BACK_IFG_MAX))
1112                return -EINVAL;
1113
1114        value |=
1115            ((non_btb_cs_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART1_SHIFT) &
1116             IPGIFG_NBTB_CS_IPG_MASK);
1117        value |=
1118            ((non_btb_ipg << IPGIFG_NON_BACK_TO_BACK_IFG_PART2_SHIFT) &
1119             IPGIFG_NBTB_IPG_MASK);
1120        value |=
1121            ((min_ifg << IPGIFG_MINIMUM_IFG_ENFORCEMENT_SHIFT) &
1122             IPGIFG_MIN_IFG_MASK);
1123        value |= (btb_ipg & IPGIFG_BTB_IPG_MASK);
1124
1125        out_be32(ipgifg_register, value);
1126        return 0;
1127}
1128
1129int init_flow_control_params(u32 automatic_flow_control_mode,
1130                                    int rx_flow_control_enable,
1131                                    int tx_flow_control_enable,
1132                                    u16 pause_period,
1133                                    u16 extension_field,
1134                                    u32 __iomem *upsmr_register,
1135                                    u32 __iomem *uempr_register,
1136                                    u32 __iomem *maccfg1_register)
1137{
1138        u32 value = 0;
1139
1140        /* Set UEMPR register */
1141        value = (u32) pause_period << UEMPR_PAUSE_TIME_VALUE_SHIFT;
1142        value |= (u32) extension_field << UEMPR_EXTENDED_PAUSE_TIME_VALUE_SHIFT;
1143        out_be32(uempr_register, value);
1144
1145        /* Set UPSMR register */
1146        setbits32(upsmr_register, automatic_flow_control_mode);
1147
1148        value = in_be32(maccfg1_register);
1149        if (rx_flow_control_enable)
1150                value |= MACCFG1_FLOW_RX;
1151        if (tx_flow_control_enable)
1152                value |= MACCFG1_FLOW_TX;
1153        out_be32(maccfg1_register, value);
1154
1155        return 0;
1156}
1157
1158static int init_hw_statistics_gathering_mode(int enable_hardware_statistics,
1159                                             int auto_zero_hardware_statistics,
1160                                             u32 __iomem *upsmr_register,
1161                                             u16 __iomem *uescr_register)
1162{
1163        u16 uescr_value = 0;
1164
1165        /* Enable hardware statistics gathering if requested */
1166        if (enable_hardware_statistics)
1167                setbits32(upsmr_register, UCC_GETH_UPSMR_HSE);
1168
1169        /* Clear hardware statistics counters */
1170        uescr_value = in_be16(uescr_register);
1171        uescr_value |= UESCR_CLRCNT;
1172        /* Automatically zero hardware statistics counters on read,
1173        if requested */
1174        if (auto_zero_hardware_statistics)
1175                uescr_value |= UESCR_AUTOZ;
1176        out_be16(uescr_register, uescr_value);
1177
1178        return 0;
1179}
1180
1181static int init_firmware_statistics_gathering_mode(int
1182                enable_tx_firmware_statistics,
1183                int enable_rx_firmware_statistics,
1184                u32 __iomem *tx_rmon_base_ptr,
1185                u32 tx_firmware_statistics_structure_address,
1186                u32 __iomem *rx_rmon_base_ptr,
1187                u32 rx_firmware_statistics_structure_address,
1188                u16 __iomem *temoder_register,
1189                u32 __iomem *remoder_register)
1190{
1191        /* Note: this function does not check if */
1192        /* the parameters it receives are NULL   */
1193
1194        if (enable_tx_firmware_statistics) {
1195                out_be32(tx_rmon_base_ptr,
1196                         tx_firmware_statistics_structure_address);
1197                setbits16(temoder_register, TEMODER_TX_RMON_STATISTICS_ENABLE);
1198        }
1199
1200        if (enable_rx_firmware_statistics) {
1201                out_be32(rx_rmon_base_ptr,
1202                         rx_firmware_statistics_structure_address);
1203                setbits32(remoder_register, REMODER_RX_RMON_STATISTICS_ENABLE);
1204        }
1205
1206        return 0;
1207}
1208
1209static int init_mac_station_addr_regs(u8 address_byte_0,
1210                                      u8 address_byte_1,
1211                                      u8 address_byte_2,
1212                                      u8 address_byte_3,
1213                                      u8 address_byte_4,
1214                                      u8 address_byte_5,
1215                                      u32 __iomem *macstnaddr1_register,
1216                                      u32 __iomem *macstnaddr2_register)
1217{
1218        u32 value = 0;
1219
1220        /* Example: for a station address of 0x12345678ABCD, */
1221        /* 0x12 is byte 0, 0x34 is byte 1 and so on and 0xCD is byte 5 */
1222
1223        /* MACSTNADDR1 Register: */
1224
1225        /* 0                      7   8                      15  */
1226        /* station address byte 5     station address byte 4     */
1227        /* 16                     23  24                     31  */
1228        /* station address byte 3     station address byte 2     */
1229        value |= (u32) ((address_byte_2 << 0) & 0x000000FF);
1230        value |= (u32) ((address_byte_3 << 8) & 0x0000FF00);
1231        value |= (u32) ((address_byte_4 << 16) & 0x00FF0000);
1232        value |= (u32) ((address_byte_5 << 24) & 0xFF000000);
1233
1234        out_be32(macstnaddr1_register, value);
1235
1236        /* MACSTNADDR2 Register: */
1237
1238        /* 0                      7   8                      15  */
1239        /* station address byte 1     station address byte 0     */
1240        /* 16                     23  24                     31  */
1241        /*         reserved                   reserved           */
1242        value = 0;
1243        value |= (u32) ((address_byte_0 << 16) & 0x00FF0000);
1244        value |= (u32) ((address_byte_1 << 24) & 0xFF000000);
1245
1246        out_be32(macstnaddr2_register, value);
1247
1248        return 0;
1249}
1250
1251static int init_check_frame_length_mode(int length_check,
1252                                        u32 __iomem *maccfg2_register)
1253{
1254        u32 value = 0;
1255
1256        value = in_be32(maccfg2_register);
1257
1258        if (length_check)
1259                value |= MACCFG2_LC;
1260        else
1261                value &= ~MACCFG2_LC;
1262
1263        out_be32(maccfg2_register, value);
1264        return 0;
1265}
1266
1267static int init_preamble_length(u8 preamble_length,
1268                                u32 __iomem *maccfg2_register)
1269{
1270        if ((preamble_length < 3) || (preamble_length > 7))
1271                return -EINVAL;
1272
1273        clrsetbits_be32(maccfg2_register, MACCFG2_PREL_MASK,
1274                        preamble_length << MACCFG2_PREL_SHIFT);
1275
1276        return 0;
1277}
1278
1279static int init_rx_parameters(int reject_broadcast,
1280                              int receive_short_frames,
1281                              int promiscuous, u32 __iomem *upsmr_register)
1282{
1283        u32 value = 0;
1284
1285        value = in_be32(upsmr_register);
1286
1287        if (reject_broadcast)
1288                value |= UCC_GETH_UPSMR_BRO;
1289        else
1290                value &= ~UCC_GETH_UPSMR_BRO;
1291
1292        if (receive_short_frames)
1293                value |= UCC_GETH_UPSMR_RSH;
1294        else
1295                value &= ~UCC_GETH_UPSMR_RSH;
1296
1297        if (promiscuous)
1298                value |= UCC_GETH_UPSMR_PRO;
1299        else
1300                value &= ~UCC_GETH_UPSMR_PRO;
1301
1302        out_be32(upsmr_register, value);
1303
1304        return 0;
1305}
1306
1307static int init_max_rx_buff_len(u16 max_rx_buf_len,
1308                                u16 __iomem *mrblr_register)
1309{
1310        /* max_rx_buf_len value must be a multiple of 128 */
1311        if ((max_rx_buf_len == 0) ||
1312            (max_rx_buf_len % UCC_GETH_MRBLR_ALIGNMENT))
1313                return -EINVAL;
1314
1315        out_be16(mrblr_register, max_rx_buf_len);
1316        return 0;
1317}
1318
1319static int init_min_frame_len(u16 min_frame_length,
1320                              u16 __iomem *minflr_register,
1321                              u16 __iomem *mrblr_register)
1322{
1323        u16 mrblr_value = 0;
1324
1325        mrblr_value = in_be16(mrblr_register);
1326        if (min_frame_length >= (mrblr_value - 4))
1327                return -EINVAL;
1328
1329        out_be16(minflr_register, min_frame_length);
1330        return 0;
1331}
1332
1333static int adjust_enet_interface(struct ucc_geth_private *ugeth)
1334{
1335        struct ucc_geth_info *ug_info;
1336        struct ucc_geth __iomem *ug_regs;
1337        struct ucc_fast __iomem *uf_regs;
1338        int ret_val;
1339        u32 upsmr, maccfg2;
1340        u16 value;
1341
1342        ugeth_vdbg("%s: IN", __func__);
1343
1344        ug_info = ugeth->ug_info;
1345        ug_regs = ugeth->ug_regs;
1346        uf_regs = ugeth->uccf->uf_regs;
1347
1348        /*                    Set MACCFG2                    */
1349        maccfg2 = in_be32(&ug_regs->maccfg2);
1350        maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
1351        if ((ugeth->max_speed == SPEED_10) ||
1352            (ugeth->max_speed == SPEED_100))
1353                maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
1354        else if (ugeth->max_speed == SPEED_1000)
1355                maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
1356        maccfg2 |= ug_info->padAndCrc;
1357        out_be32(&ug_regs->maccfg2, maccfg2);
1358
1359        /*                    Set UPSMR                      */
1360        upsmr = in_be32(&uf_regs->upsmr);
1361        upsmr &= ~(UCC_GETH_UPSMR_RPM | UCC_GETH_UPSMR_R10M |
1362                   UCC_GETH_UPSMR_TBIM | UCC_GETH_UPSMR_RMM);
1363        if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1364            (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1365            (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1366            (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1367            (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1368            (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1369                if (ugeth->phy_interface != PHY_INTERFACE_MODE_RMII)
1370                        upsmr |= UCC_GETH_UPSMR_RPM;
1371                switch (ugeth->max_speed) {
1372                case SPEED_10:
1373                        upsmr |= UCC_GETH_UPSMR_R10M;
1374                        /* FALLTHROUGH */
1375                case SPEED_100:
1376                        if (ugeth->phy_interface != PHY_INTERFACE_MODE_RTBI)
1377                                upsmr |= UCC_GETH_UPSMR_RMM;
1378                }
1379        }
1380        if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1381            (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1382                upsmr |= UCC_GETH_UPSMR_TBIM;
1383        }
1384        if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
1385                upsmr |= UCC_GETH_UPSMR_SGMM;
1386
1387        out_be32(&uf_regs->upsmr, upsmr);
1388
1389        /* Disable autonegotiation in tbi mode, because by default it
1390        comes up in autonegotiation mode. */
1391        /* Note that this depends on proper setting in utbipar register. */
1392        if ((ugeth->phy_interface == PHY_INTERFACE_MODE_TBI) ||
1393            (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1394                struct ucc_geth_info *ug_info = ugeth->ug_info;
1395                struct phy_device *tbiphy;
1396
1397                if (!ug_info->tbi_node)
1398                        ugeth_warn("TBI mode requires that the device "
1399                                "tree specify a tbi-handle\n");
1400
1401                tbiphy = of_phy_find_device(ug_info->tbi_node);
1402                if (!tbiphy)
1403                        ugeth_warn("Could not get TBI device\n");
1404
1405                value = phy_read(tbiphy, ENET_TBI_MII_CR);
1406                value &= ~0x1000;       /* Turn off autonegotiation */
1407                phy_write(tbiphy, ENET_TBI_MII_CR, value);
1408        }
1409
1410        init_check_frame_length_mode(ug_info->lengthCheckRx, &ug_regs->maccfg2);
1411
1412        ret_val = init_preamble_length(ug_info->prel, &ug_regs->maccfg2);
1413        if (ret_val != 0) {
1414                if (netif_msg_probe(ugeth))
1415                        ugeth_err("%s: Preamble length must be between 3 and 7 inclusive.",
1416                             __func__);
1417                return ret_val;
1418        }
1419
1420        return 0;
1421}
1422
1423static int ugeth_graceful_stop_tx(struct ucc_geth_private *ugeth)
1424{
1425        struct ucc_fast_private *uccf;
1426        u32 cecr_subblock;
1427        u32 temp;
1428        int i = 10;
1429
1430        uccf = ugeth->uccf;
1431
1432        /* Mask GRACEFUL STOP TX interrupt bit and clear it */
1433        clrbits32(uccf->p_uccm, UCC_GETH_UCCE_GRA);
1434        out_be32(uccf->p_ucce, UCC_GETH_UCCE_GRA);  /* clear by writing 1 */
1435
1436        /* Issue host command */
1437        cecr_subblock =
1438            ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1439        qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
1440                     QE_CR_PROTOCOL_ETHERNET, 0);
1441
1442        /* Wait for command to complete */
1443        do {
1444                msleep(10);
1445                temp = in_be32(uccf->p_ucce);
1446        } while (!(temp & UCC_GETH_UCCE_GRA) && --i);
1447
1448        uccf->stopped_tx = 1;
1449
1450        return 0;
1451}
1452
1453static int ugeth_graceful_stop_rx(struct ucc_geth_private *ugeth)
1454{
1455        struct ucc_fast_private *uccf;
1456        u32 cecr_subblock;
1457        u8 temp;
1458        int i = 10;
1459
1460        uccf = ugeth->uccf;
1461
1462        /* Clear acknowledge bit */
1463        temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1464        temp &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
1465        out_8(&ugeth->p_rx_glbl_pram->rxgstpack, temp);
1466
1467        /* Keep issuing command and checking acknowledge bit until
1468        it is asserted, according to spec */
1469        do {
1470                /* Issue host command */
1471                cecr_subblock =
1472                    ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.
1473                                                ucc_num);
1474                qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
1475                             QE_CR_PROTOCOL_ETHERNET, 0);
1476                msleep(10);
1477                temp = in_8(&ugeth->p_rx_glbl_pram->rxgstpack);
1478        } while (!(temp & GRACEFUL_STOP_ACKNOWLEDGE_RX) && --i);
1479
1480        uccf->stopped_rx = 1;
1481
1482        return 0;
1483}
1484
1485static int ugeth_restart_tx(struct ucc_geth_private *ugeth)
1486{
1487        struct ucc_fast_private *uccf;
1488        u32 cecr_subblock;
1489
1490        uccf = ugeth->uccf;
1491
1492        cecr_subblock =
1493            ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1494        qe_issue_cmd(QE_RESTART_TX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET, 0);
1495        uccf->stopped_tx = 0;
1496
1497        return 0;
1498}
1499
1500static int ugeth_restart_rx(struct ucc_geth_private *ugeth)
1501{
1502        struct ucc_fast_private *uccf;
1503        u32 cecr_subblock;
1504
1505        uccf = ugeth->uccf;
1506
1507        cecr_subblock =
1508            ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
1509        qe_issue_cmd(QE_RESTART_RX, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
1510                     0);
1511        uccf->stopped_rx = 0;
1512
1513        return 0;
1514}
1515
1516static int ugeth_enable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1517{
1518        struct ucc_fast_private *uccf;
1519        int enabled_tx, enabled_rx;
1520
1521        uccf = ugeth->uccf;
1522
1523        /* check if the UCC number is in range. */
1524        if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1525                if (netif_msg_probe(ugeth))
1526                        ugeth_err("%s: ucc_num out of range.", __func__);
1527                return -EINVAL;
1528        }
1529
1530        enabled_tx = uccf->enabled_tx;
1531        enabled_rx = uccf->enabled_rx;
1532
1533        /* Get Tx and Rx going again, in case this channel was actively
1534        disabled. */
1535        if ((mode & COMM_DIR_TX) && (!enabled_tx) && uccf->stopped_tx)
1536                ugeth_restart_tx(ugeth);
1537        if ((mode & COMM_DIR_RX) && (!enabled_rx) && uccf->stopped_rx)
1538                ugeth_restart_rx(ugeth);
1539
1540        ucc_fast_enable(uccf, mode);    /* OK to do even if not disabled */
1541
1542        return 0;
1543
1544}
1545
1546static int ugeth_disable(struct ucc_geth_private *ugeth, enum comm_dir mode)
1547{
1548        struct ucc_fast_private *uccf;
1549
1550        uccf = ugeth->uccf;
1551
1552        /* check if the UCC number is in range. */
1553        if (ugeth->ug_info->uf_info.ucc_num >= UCC_MAX_NUM) {
1554                if (netif_msg_probe(ugeth))
1555                        ugeth_err("%s: ucc_num out of range.", __func__);
1556                return -EINVAL;
1557        }
1558
1559        /* Stop any transmissions */
1560        if ((mode & COMM_DIR_TX) && uccf->enabled_tx && !uccf->stopped_tx)
1561                ugeth_graceful_stop_tx(ugeth);
1562
1563        /* Stop any receptions */
1564        if ((mode & COMM_DIR_RX) && uccf->enabled_rx && !uccf->stopped_rx)
1565                ugeth_graceful_stop_rx(ugeth);
1566
1567        ucc_fast_disable(ugeth->uccf, mode); /* OK to do even if not enabled */
1568
1569        return 0;
1570}
1571
1572static void ugeth_quiesce(struct ucc_geth_private *ugeth)
1573{
1574        /* Prevent any further xmits, plus detach the device. */
1575        netif_device_detach(ugeth->ndev);
1576
1577        /* Wait for any current xmits to finish. */
1578        netif_tx_disable(ugeth->ndev);
1579
1580        /* Disable the interrupt to avoid NAPI rescheduling. */
1581        disable_irq(ugeth->ug_info->uf_info.irq);
1582
1583        /* Stop NAPI, and possibly wait for its completion. */
1584        napi_disable(&ugeth->napi);
1585}
1586
1587static void ugeth_activate(struct ucc_geth_private *ugeth)
1588{
1589        napi_enable(&ugeth->napi);
1590        enable_irq(ugeth->ug_info->uf_info.irq);
1591        netif_device_attach(ugeth->ndev);
1592}
1593
1594/* Called every time the controller might need to be made
1595 * aware of new link state.  The PHY code conveys this
1596 * information through variables in the ugeth structure, and this
1597 * function converts those variables into the appropriate
1598 * register values, and can bring down the device if needed.
1599 */
1600
1601static void adjust_link(struct net_device *dev)
1602{
1603        struct ucc_geth_private *ugeth = netdev_priv(dev);
1604        struct ucc_geth __iomem *ug_regs;
1605        struct ucc_fast __iomem *uf_regs;
1606        struct phy_device *phydev = ugeth->phydev;
1607        int new_state = 0;
1608
1609        ug_regs = ugeth->ug_regs;
1610        uf_regs = ugeth->uccf->uf_regs;
1611
1612        if (phydev->link) {
1613                u32 tempval = in_be32(&ug_regs->maccfg2);
1614                u32 upsmr = in_be32(&uf_regs->upsmr);
1615                /* Now we make sure that we can be in full duplex mode.
1616                 * If not, we operate in half-duplex mode. */
1617                if (phydev->duplex != ugeth->oldduplex) {
1618                        new_state = 1;
1619                        if (!(phydev->duplex))
1620                                tempval &= ~(MACCFG2_FDX);
1621                        else
1622                                tempval |= MACCFG2_FDX;
1623                        ugeth->oldduplex = phydev->duplex;
1624                }
1625
1626                if (phydev->speed != ugeth->oldspeed) {
1627                        new_state = 1;
1628                        switch (phydev->speed) {
1629                        case SPEED_1000:
1630                                tempval = ((tempval &
1631                                            ~(MACCFG2_INTERFACE_MODE_MASK)) |
1632                                            MACCFG2_INTERFACE_MODE_BYTE);
1633                                break;
1634                        case SPEED_100:
1635                        case SPEED_10:
1636                                tempval = ((tempval &
1637                                            ~(MACCFG2_INTERFACE_MODE_MASK)) |
1638                                            MACCFG2_INTERFACE_MODE_NIBBLE);
1639                                /* if reduced mode, re-set UPSMR.R10M */
1640                                if ((ugeth->phy_interface == PHY_INTERFACE_MODE_RMII) ||
1641                                    (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII) ||
1642                                    (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_ID) ||
1643                                    (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
1644                                    (ugeth->phy_interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
1645                                    (ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
1646                                        if (phydev->speed == SPEED_10)
1647                                                upsmr |= UCC_GETH_UPSMR_R10M;
1648                                        else
1649                                                upsmr &= ~UCC_GETH_UPSMR_R10M;
1650                                }
1651                                break;
1652                        default:
1653                                if (netif_msg_link(ugeth))
1654                                        ugeth_warn(
1655                                                "%s: Ack!  Speed (%d) is not 10/100/1000!",
1656                                                dev->name, phydev->speed);
1657                                break;
1658                        }
1659                        ugeth->oldspeed = phydev->speed;
1660                }
1661
1662                if (!ugeth->oldlink) {
1663                        new_state = 1;
1664                        ugeth->oldlink = 1;
1665                }
1666
1667                if (new_state) {
1668                        /*
1669                         * To change the MAC configuration we need to disable
1670                         * the controller. To do so, we have to either grab
1671                         * ugeth->lock, which is a bad idea since 'graceful
1672                         * stop' commands might take quite a while, or we can
1673                         * quiesce driver's activity.
1674                         */
1675                        ugeth_quiesce(ugeth);
1676                        ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
1677
1678                        out_be32(&ug_regs->maccfg2, tempval);
1679                        out_be32(&uf_regs->upsmr, upsmr);
1680
1681                        ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
1682                        ugeth_activate(ugeth);
1683                }
1684        } else if (ugeth->oldlink) {
1685                        new_state = 1;
1686                        ugeth->oldlink = 0;
1687                        ugeth->oldspeed = 0;
1688                        ugeth->oldduplex = -1;
1689        }
1690
1691        if (new_state && netif_msg_link(ugeth))
1692                phy_print_status(phydev);
1693}
1694
1695/* Initialize TBI PHY interface for communicating with the
1696 * SERDES lynx PHY on the chip.  We communicate with this PHY
1697 * through the MDIO bus on each controller, treating it as a
1698 * "normal" PHY at the address found in the UTBIPA register.  We assume
1699 * that the UTBIPA register is valid.  Either the MDIO bus code will set
1700 * it to a value that doesn't conflict with other PHYs on the bus, or the
1701 * value doesn't matter, as there are no other PHYs on the bus.
1702 */
1703static void uec_configure_serdes(struct net_device *dev)
1704{
1705        struct ucc_geth_private *ugeth = netdev_priv(dev);
1706        struct ucc_geth_info *ug_info = ugeth->ug_info;
1707        struct phy_device *tbiphy;
1708
1709        if (!ug_info->tbi_node) {
1710                dev_warn(&dev->dev, "SGMII mode requires that the device "
1711                        "tree specify a tbi-handle\n");
1712                return;
1713        }
1714
1715        tbiphy = of_phy_find_device(ug_info->tbi_node);
1716        if (!tbiphy) {
1717                dev_err(&dev->dev, "error: Could not get TBI device\n");
1718                return;
1719        }
1720
1721        /*
1722         * If the link is already up, we must already be ok, and don't need to
1723         * configure and reset the TBI<->SerDes link.  Maybe U-Boot configured
1724         * everything for us?  Resetting it takes the link down and requires
1725         * several seconds for it to come back.
1726         */
1727        if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
1728                return;
1729
1730        /* Single clk mode, mii mode off(for serdes communication) */
1731        phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
1732
1733        phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
1734
1735        phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
1736}
1737
1738/* Configure the PHY for dev.
1739 * returns 0 if success.  -1 if failure
1740 */
1741static int init_phy(struct net_device *dev)
1742{
1743        struct ucc_geth_private *priv = netdev_priv(dev);
1744        struct ucc_geth_info *ug_info = priv->ug_info;
1745        struct phy_device *phydev;
1746
1747        priv->oldlink = 0;
1748        priv->oldspeed = 0;
1749        priv->oldduplex = -1;
1750
1751        phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
1752                                priv->phy_interface);
1753        if (!phydev)
1754                phydev = of_phy_connect_fixed_link(dev, &adjust_link,
1755                                                   priv->phy_interface);
1756        if (!phydev) {
1757                dev_err(&dev->dev, "Could not attach to PHY\n");
1758                return -ENODEV;
1759        }
1760
1761        if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
1762                uec_configure_serdes(dev);
1763
1764        phydev->supported &= (ADVERTISED_10baseT_Half |
1765                                 ADVERTISED_10baseT_Full |
1766                                 ADVERTISED_100baseT_Half |
1767                                 ADVERTISED_100baseT_Full);
1768
1769        if (priv->max_speed == SPEED_1000)
1770                phydev->supported |= ADVERTISED_1000baseT_Full;
1771
1772        phydev->advertising = phydev->supported;
1773
1774        priv->phydev = phydev;
1775
1776        return 0;
1777}
1778
1779static void ugeth_dump_regs(struct ucc_geth_private *ugeth)
1780{
1781#ifdef DEBUG
1782        ucc_fast_dump_regs(ugeth->uccf);
1783        dump_regs(ugeth);
1784        dump_bds(ugeth);
1785#endif
1786}
1787
1788static int ugeth_82xx_filtering_clear_all_addr_in_hash(struct ucc_geth_private *
1789                                                       ugeth,
1790                                                       enum enet_addr_type
1791                                                       enet_addr_type)
1792{
1793        struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
1794        struct ucc_fast_private *uccf;
1795        enum comm_dir comm_dir;
1796        struct list_head *p_lh;
1797        u16 i, num;
1798        u32 __iomem *addr_h;
1799        u32 __iomem *addr_l;
1800        u8 *p_counter;
1801
1802        uccf = ugeth->uccf;
1803
1804        p_82xx_addr_filt =
1805            (struct ucc_geth_82xx_address_filtering_pram __iomem *)
1806            ugeth->p_rx_glbl_pram->addressfiltering;
1807
1808        if (enet_addr_type == ENET_ADDR_TYPE_GROUP) {
1809                addr_h = &(p_82xx_addr_filt->gaddr_h);
1810                addr_l = &(p_82xx_addr_filt->gaddr_l);
1811                p_lh = &ugeth->group_hash_q;
1812                p_counter = &(ugeth->numGroupAddrInHash);
1813        } else if (enet_addr_type == ENET_ADDR_TYPE_INDIVIDUAL) {
1814                addr_h = &(p_82xx_addr_filt->iaddr_h);
1815                addr_l = &(p_82xx_addr_filt->iaddr_l);
1816                p_lh = &ugeth->ind_hash_q;
1817                p_counter = &(ugeth->numIndAddrInHash);
1818        } else
1819                return -EINVAL;
1820
1821        comm_dir = 0;
1822        if (uccf->enabled_tx)
1823                comm_dir |= COMM_DIR_TX;
1824        if (uccf->enabled_rx)
1825                comm_dir |= COMM_DIR_RX;
1826        if (comm_dir)
1827                ugeth_disable(ugeth, comm_dir);
1828
1829        /* Clear the hash table. */
1830        out_be32(addr_h, 0x00000000);
1831        out_be32(addr_l, 0x00000000);
1832
1833        if (!p_lh)
1834                return 0;
1835
1836        num = *p_counter;
1837
1838        /* Delete all remaining CQ elements */
1839        for (i = 0; i < num; i++)
1840                put_enet_addr_container(ENET_ADDR_CONT_ENTRY(dequeue(p_lh)));
1841
1842        *p_counter = 0;
1843
1844        if (comm_dir)
1845                ugeth_enable(ugeth, comm_dir);
1846
1847        return 0;
1848}
1849
1850static int ugeth_82xx_filtering_clear_addr_in_paddr(struct ucc_geth_private *ugeth,
1851                                                    u8 paddr_num)
1852{
1853        ugeth->indAddrRegUsed[paddr_num] = 0; /* mark this paddr as not used */
1854        return hw_clear_addr_in_paddr(ugeth, paddr_num);/* clear in hardware */
1855}
1856
1857static void ucc_geth_memclean(struct ucc_geth_private *ugeth)
1858{
1859        u16 i, j;
1860        u8 __iomem *bd;
1861
1862        if (!ugeth)
1863                return;
1864
1865        if (ugeth->uccf) {
1866                ucc_fast_free(ugeth->uccf);
1867                ugeth->uccf = NULL;
1868        }
1869
1870        if (ugeth->p_thread_data_tx) {
1871                qe_muram_free(ugeth->thread_dat_tx_offset);
1872                ugeth->p_thread_data_tx = NULL;
1873        }
1874        if (ugeth->p_thread_data_rx) {
1875                qe_muram_free(ugeth->thread_dat_rx_offset);
1876                ugeth->p_thread_data_rx = NULL;
1877        }
1878        if (ugeth->p_exf_glbl_param) {
1879                qe_muram_free(ugeth->exf_glbl_param_offset);
1880                ugeth->p_exf_glbl_param = NULL;
1881        }
1882        if (ugeth->p_rx_glbl_pram) {
1883                qe_muram_free(ugeth->rx_glbl_pram_offset);
1884                ugeth->p_rx_glbl_pram = NULL;
1885        }
1886        if (ugeth->p_tx_glbl_pram) {
1887                qe_muram_free(ugeth->tx_glbl_pram_offset);
1888                ugeth->p_tx_glbl_pram = NULL;
1889        }
1890        if (ugeth->p_send_q_mem_reg) {
1891                qe_muram_free(ugeth->send_q_mem_reg_offset);
1892                ugeth->p_send_q_mem_reg = NULL;
1893        }
1894        if (ugeth->p_scheduler) {
1895                qe_muram_free(ugeth->scheduler_offset);
1896                ugeth->p_scheduler = NULL;
1897        }
1898        if (ugeth->p_tx_fw_statistics_pram) {
1899                qe_muram_free(ugeth->tx_fw_statistics_pram_offset);
1900                ugeth->p_tx_fw_statistics_pram = NULL;
1901        }
1902        if (ugeth->p_rx_fw_statistics_pram) {
1903                qe_muram_free(ugeth->rx_fw_statistics_pram_offset);
1904                ugeth->p_rx_fw_statistics_pram = NULL;
1905        }
1906        if (ugeth->p_rx_irq_coalescing_tbl) {
1907                qe_muram_free(ugeth->rx_irq_coalescing_tbl_offset);
1908                ugeth->p_rx_irq_coalescing_tbl = NULL;
1909        }
1910        if (ugeth->p_rx_bd_qs_tbl) {
1911                qe_muram_free(ugeth->rx_bd_qs_tbl_offset);
1912                ugeth->p_rx_bd_qs_tbl = NULL;
1913        }
1914        if (ugeth->p_init_enet_param_shadow) {
1915                return_init_enet_entries(ugeth,
1916                                         &(ugeth->p_init_enet_param_shadow->
1917                                           rxthread[0]),
1918                                         ENET_INIT_PARAM_MAX_ENTRIES_RX,
1919                                         ugeth->ug_info->riscRx, 1);
1920                return_init_enet_entries(ugeth,
1921                                         &(ugeth->p_init_enet_param_shadow->
1922                                           txthread[0]),
1923                                         ENET_INIT_PARAM_MAX_ENTRIES_TX,
1924                                         ugeth->ug_info->riscTx, 0);
1925                kfree(ugeth->p_init_enet_param_shadow);
1926                ugeth->p_init_enet_param_shadow = NULL;
1927        }
1928        for (i = 0; i < ugeth->ug_info->numQueuesTx; i++) {
1929                bd = ugeth->p_tx_bd_ring[i];
1930                if (!bd)
1931                        continue;
1932                for (j = 0; j < ugeth->ug_info->bdRingLenTx[i]; j++) {
1933                        if (ugeth->tx_skbuff[i][j]) {
1934                                dma_unmap_single(ugeth->dev,
1935                                                 in_be32(&((struct qe_bd __iomem *)bd)->buf),
1936                                                 (in_be32((u32 __iomem *)bd) &
1937                                                  BD_LENGTH_MASK),
1938                                                 DMA_TO_DEVICE);
1939                                dev_kfree_skb_any(ugeth->tx_skbuff[i][j]);
1940                                ugeth->tx_skbuff[i][j] = NULL;
1941                        }
1942                }
1943
1944                kfree(ugeth->tx_skbuff[i]);
1945
1946                if (ugeth->p_tx_bd_ring[i]) {
1947                        if (ugeth->ug_info->uf_info.bd_mem_part ==
1948                            MEM_PART_SYSTEM)
1949                                kfree((void *)ugeth->tx_bd_ring_offset[i]);
1950                        else if (ugeth->ug_info->uf_info.bd_mem_part ==
1951                                 MEM_PART_MURAM)
1952                                qe_muram_free(ugeth->tx_bd_ring_offset[i]);
1953                        ugeth->p_tx_bd_ring[i] = NULL;
1954                }
1955        }
1956        for (i = 0; i < ugeth->ug_info->numQueuesRx; i++) {
1957                if (ugeth->p_rx_bd_ring[i]) {
1958                        /* Return existing data buffers in ring */
1959                        bd = ugeth->p_rx_bd_ring[i];
1960                        for (j = 0; j < ugeth->ug_info->bdRingLenRx[i]; j++) {
1961                                if (ugeth->rx_skbuff[i][j]) {
1962                                        dma_unmap_single(ugeth->dev,
1963                                                in_be32(&((struct qe_bd __iomem *)bd)->buf),
1964                                                ugeth->ug_info->
1965                                                uf_info.max_rx_buf_length +
1966                                                UCC_GETH_RX_DATA_BUF_ALIGNMENT,
1967                                                DMA_FROM_DEVICE);
1968                                        dev_kfree_skb_any(
1969                                                ugeth->rx_skbuff[i][j]);
1970                                        ugeth->rx_skbuff[i][j] = NULL;
1971                                }
1972                                bd += sizeof(struct qe_bd);
1973                        }
1974
1975                        kfree(ugeth->rx_skbuff[i]);
1976
1977                        if (ugeth->ug_info->uf_info.bd_mem_part ==
1978                            MEM_PART_SYSTEM)
1979                                kfree((void *)ugeth->rx_bd_ring_offset[i]);
1980                        else if (ugeth->ug_info->uf_info.bd_mem_part ==
1981                                 MEM_PART_MURAM)
1982                                qe_muram_free(ugeth->rx_bd_ring_offset[i]);
1983                        ugeth->p_rx_bd_ring[i] = NULL;
1984                }
1985        }
1986        while (!list_empty(&ugeth->group_hash_q))
1987                put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1988                                        (dequeue(&ugeth->group_hash_q)));
1989        while (!list_empty(&ugeth->ind_hash_q))
1990                put_enet_addr_container(ENET_ADDR_CONT_ENTRY
1991                                        (dequeue(&ugeth->ind_hash_q)));
1992        if (ugeth->ug_regs) {
1993                iounmap(ugeth->ug_regs);
1994                ugeth->ug_regs = NULL;
1995        }
1996
1997        skb_queue_purge(&ugeth->rx_recycle);
1998}
1999
2000static void ucc_geth_set_multi(struct net_device *dev)
2001{
2002        struct ucc_geth_private *ugeth;
2003        struct netdev_hw_addr *ha;
2004        struct ucc_fast __iomem *uf_regs;
2005        struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2006
2007        ugeth = netdev_priv(dev);
2008
2009        uf_regs = ugeth->uccf->uf_regs;
2010
2011        if (dev->flags & IFF_PROMISC) {
2012                setbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2013        } else {
2014                clrbits32(&uf_regs->upsmr, UCC_GETH_UPSMR_PRO);
2015
2016                p_82xx_addr_filt =
2017                    (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2018                    p_rx_glbl_pram->addressfiltering;
2019
2020                if (dev->flags & IFF_ALLMULTI) {
2021                        /* Catch all multicast addresses, so set the
2022                         * filter to all 1's.
2023                         */
2024                        out_be32(&p_82xx_addr_filt->gaddr_h, 0xffffffff);
2025                        out_be32(&p_82xx_addr_filt->gaddr_l, 0xffffffff);
2026                } else {
2027                        /* Clear filter and add the addresses in the list.
2028                         */
2029                        out_be32(&p_82xx_addr_filt->gaddr_h, 0x0);
2030                        out_be32(&p_82xx_addr_filt->gaddr_l, 0x0);
2031
2032                        netdev_for_each_mc_addr(ha, dev) {
2033                                /* Only support group multicast for now.
2034                                 */
2035                                if (!is_multicast_ether_addr(ha->addr))
2036                                        continue;
2037
2038                                /* Ask CPM to run CRC and set bit in
2039                                 * filter mask.
2040                                 */
2041                                hw_add_addr_in_hash(ugeth, ha->addr);
2042                        }
2043                }
2044        }
2045}
2046
2047static void ucc_geth_stop(struct ucc_geth_private *ugeth)
2048{
2049        struct ucc_geth __iomem *ug_regs = ugeth->ug_regs;
2050        struct phy_device *phydev = ugeth->phydev;
2051
2052        ugeth_vdbg("%s: IN", __func__);
2053
2054        /*
2055         * Tell the kernel the link is down.
2056         * Must be done before disabling the controller
2057         * or deadlock may happen.
2058         */
2059        phy_stop(phydev);
2060
2061        /* Disable the controller */
2062        ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
2063
2064        /* Mask all interrupts */
2065        out_be32(ugeth->uccf->p_uccm, 0x00000000);
2066
2067        /* Clear all interrupts */
2068        out_be32(ugeth->uccf->p_ucce, 0xffffffff);
2069
2070        /* Disable Rx and Tx */
2071        clrbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2072
2073        ucc_geth_memclean(ugeth);
2074}
2075
2076static int ucc_struct_init(struct ucc_geth_private *ugeth)
2077{
2078        struct ucc_geth_info *ug_info;
2079        struct ucc_fast_info *uf_info;
2080        int i;
2081
2082        ug_info = ugeth->ug_info;
2083        uf_info = &ug_info->uf_info;
2084
2085        if (!((uf_info->bd_mem_part == MEM_PART_SYSTEM) ||
2086              (uf_info->bd_mem_part == MEM_PART_MURAM))) {
2087                if (netif_msg_probe(ugeth))
2088                        ugeth_err("%s: Bad memory partition value.",
2089                                        __func__);
2090                return -EINVAL;
2091        }
2092
2093        /* Rx BD lengths */
2094        for (i = 0; i < ug_info->numQueuesRx; i++) {
2095                if ((ug_info->bdRingLenRx[i] < UCC_GETH_RX_BD_RING_SIZE_MIN) ||
2096                    (ug_info->bdRingLenRx[i] %
2097                     UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT)) {
2098                        if (netif_msg_probe(ugeth))
2099                                ugeth_err
2100                                    ("%s: Rx BD ring length must be multiple of 4, no smaller than 8.",
2101                                        __func__);
2102                        return -EINVAL;
2103                }
2104        }
2105
2106        /* Tx BD lengths */
2107        for (i = 0; i < ug_info->numQueuesTx; i++) {
2108                if (ug_info->bdRingLenTx[i] < UCC_GETH_TX_BD_RING_SIZE_MIN) {
2109                        if (netif_msg_probe(ugeth))
2110                                ugeth_err
2111                                    ("%s: Tx BD ring length must be no smaller than 2.",
2112                                     __func__);
2113                        return -EINVAL;
2114                }
2115        }
2116
2117        /* mrblr */
2118        if ((uf_info->max_rx_buf_length == 0) ||
2119            (uf_info->max_rx_buf_length % UCC_GETH_MRBLR_ALIGNMENT)) {
2120                if (netif_msg_probe(ugeth))
2121                        ugeth_err
2122                            ("%s: max_rx_buf_length must be non-zero multiple of 128.",
2123                             __func__);
2124                return -EINVAL;
2125        }
2126
2127        /* num Tx queues */
2128        if (ug_info->numQueuesTx > NUM_TX_QUEUES) {
2129                if (netif_msg_probe(ugeth))
2130                        ugeth_err("%s: number of tx queues too large.", __func__);
2131                return -EINVAL;
2132        }
2133
2134        /* num Rx queues */
2135        if (ug_info->numQueuesRx > NUM_RX_QUEUES) {
2136                if (netif_msg_probe(ugeth))
2137                        ugeth_err("%s: number of rx queues too large.", __func__);
2138                return -EINVAL;
2139        }
2140
2141        /* l2qt */
2142        for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++) {
2143                if (ug_info->l2qt[i] >= ug_info->numQueuesRx) {
2144                        if (netif_msg_probe(ugeth))
2145                                ugeth_err
2146                                    ("%s: VLAN priority table entry must not be"
2147                                        " larger than number of Rx queues.",
2148                                     __func__);
2149                        return -EINVAL;
2150                }
2151        }
2152
2153        /* l3qt */
2154        for (i = 0; i < UCC_GETH_IP_PRIORITY_MAX; i++) {
2155                if (ug_info->l3qt[i] >= ug_info->numQueuesRx) {
2156                        if (netif_msg_probe(ugeth))
2157                                ugeth_err
2158                                    ("%s: IP priority table entry must not be"
2159                                        " larger than number of Rx queues.",
2160                                     __func__);
2161                        return -EINVAL;
2162                }
2163        }
2164
2165        if (ug_info->cam && !ug_info->ecamptr) {
2166                if (netif_msg_probe(ugeth))
2167                        ugeth_err("%s: If cam mode is chosen, must supply cam ptr.",
2168                                  __func__);
2169                return -EINVAL;
2170        }
2171
2172        if ((ug_info->numStationAddresses !=
2173             UCC_GETH_NUM_OF_STATION_ADDRESSES_1) &&
2174            ug_info->rxExtendedFiltering) {
2175                if (netif_msg_probe(ugeth))
2176                        ugeth_err("%s: Number of station addresses greater than 1 "
2177                                  "not allowed in extended parsing mode.",
2178                                  __func__);
2179                return -EINVAL;
2180        }
2181
2182        /* Generate uccm_mask for receive */
2183        uf_info->uccm_mask = ug_info->eventRegMask & UCCE_OTHER;/* Errors */
2184        for (i = 0; i < ug_info->numQueuesRx; i++)
2185                uf_info->uccm_mask |= (UCC_GETH_UCCE_RXF0 << i);
2186
2187        for (i = 0; i < ug_info->numQueuesTx; i++)
2188                uf_info->uccm_mask |= (UCC_GETH_UCCE_TXB0 << i);
2189        /* Initialize the general fast UCC block. */
2190        if (ucc_fast_init(uf_info, &ugeth->uccf)) {
2191                if (netif_msg_probe(ugeth))
2192                        ugeth_err("%s: Failed to init uccf.", __func__);
2193                return -ENOMEM;
2194        }
2195
2196        /* read the number of risc engines, update the riscTx and riscRx
2197         * if there are 4 riscs in QE
2198         */
2199        if (qe_get_num_of_risc() == 4) {
2200                ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
2201                ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
2202        }
2203
2204        ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
2205        if (!ugeth->ug_regs) {
2206                if (netif_msg_probe(ugeth))
2207                        ugeth_err("%s: Failed to ioremap regs.", __func__);
2208                return -ENOMEM;
2209        }
2210
2211        skb_queue_head_init(&ugeth->rx_recycle);
2212
2213        return 0;
2214}
2215
2216static int ucc_geth_startup(struct ucc_geth_private *ugeth)
2217{
2218        struct ucc_geth_82xx_address_filtering_pram __iomem *p_82xx_addr_filt;
2219        struct ucc_geth_init_pram __iomem *p_init_enet_pram;
2220        struct ucc_fast_private *uccf;
2221        struct ucc_geth_info *ug_info;
2222        struct ucc_fast_info *uf_info;
2223        struct ucc_fast __iomem *uf_regs;
2224        struct ucc_geth __iomem *ug_regs;
2225        int ret_val = -EINVAL;
2226        u32 remoder = UCC_GETH_REMODER_INIT;
2227        u32 init_enet_pram_offset, cecr_subblock, command;
2228        u32 ifstat, i, j, size, l2qt, l3qt, length;
2229        u16 temoder = UCC_GETH_TEMODER_INIT;
2230        u16 test;
2231        u8 function_code = 0;
2232        u8 __iomem *bd;
2233        u8 __iomem *endOfRing;
2234        u8 numThreadsRxNumerical, numThreadsTxNumerical;
2235
2236        ugeth_vdbg("%s: IN", __func__);
2237        uccf = ugeth->uccf;
2238        ug_info = ugeth->ug_info;
2239        uf_info = &ug_info->uf_info;
2240        uf_regs = uccf->uf_regs;
2241        ug_regs = ugeth->ug_regs;
2242
2243        switch (ug_info->numThreadsRx) {
2244        case UCC_GETH_NUM_OF_THREADS_1:
2245                numThreadsRxNumerical = 1;
2246                break;
2247        case UCC_GETH_NUM_OF_THREADS_2:
2248                numThreadsRxNumerical = 2;
2249                break;
2250        case UCC_GETH_NUM_OF_THREADS_4:
2251                numThreadsRxNumerical = 4;
2252                break;
2253        case UCC_GETH_NUM_OF_THREADS_6:
2254                numThreadsRxNumerical = 6;
2255                break;
2256        case UCC_GETH_NUM_OF_THREADS_8:
2257                numThreadsRxNumerical = 8;
2258                break;
2259        default:
2260                if (netif_msg_ifup(ugeth))
2261                        ugeth_err("%s: Bad number of Rx threads value.",
2262                                        __func__);
2263                return -EINVAL;
2264                break;
2265        }
2266
2267        switch (ug_info->numThreadsTx) {
2268        case UCC_GETH_NUM_OF_THREADS_1:
2269                numThreadsTxNumerical = 1;
2270                break;
2271        case UCC_GETH_NUM_OF_THREADS_2:
2272                numThreadsTxNumerical = 2;
2273                break;
2274        case UCC_GETH_NUM_OF_THREADS_4:
2275                numThreadsTxNumerical = 4;
2276                break;
2277        case UCC_GETH_NUM_OF_THREADS_6:
2278                numThreadsTxNumerical = 6;
2279                break;
2280        case UCC_GETH_NUM_OF_THREADS_8:
2281                numThreadsTxNumerical = 8;
2282                break;
2283        default:
2284                if (netif_msg_ifup(ugeth))
2285                        ugeth_err("%s: Bad number of Tx threads value.",
2286                                        __func__);
2287                return -EINVAL;
2288                break;
2289        }
2290
2291        /* Calculate rx_extended_features */
2292        ugeth->rx_non_dynamic_extended_features = ug_info->ipCheckSumCheck ||
2293            ug_info->ipAddressAlignment ||
2294            (ug_info->numStationAddresses !=
2295             UCC_GETH_NUM_OF_STATION_ADDRESSES_1);
2296
2297        ugeth->rx_extended_features = ugeth->rx_non_dynamic_extended_features ||
2298                (ug_info->vlanOperationTagged != UCC_GETH_VLAN_OPERATION_TAGGED_NOP) ||
2299                (ug_info->vlanOperationNonTagged !=
2300                 UCC_GETH_VLAN_OPERATION_NON_TAGGED_NOP);
2301
2302        init_default_reg_vals(&uf_regs->upsmr,
2303                              &ug_regs->maccfg1, &ug_regs->maccfg2);
2304
2305        /*                    Set UPSMR                      */
2306        /* For more details see the hardware spec.           */
2307        init_rx_parameters(ug_info->bro,
2308                           ug_info->rsh, ug_info->pro, &uf_regs->upsmr);
2309
2310        /* We're going to ignore other registers for now, */
2311        /* except as needed to get up and running         */
2312
2313        /*                    Set MACCFG1                    */
2314        /* For more details see the hardware spec.           */
2315        init_flow_control_params(ug_info->aufc,
2316                                 ug_info->receiveFlowControl,
2317                                 ug_info->transmitFlowControl,
2318                                 ug_info->pausePeriod,
2319                                 ug_info->extensionField,
2320                                 &uf_regs->upsmr,
2321                                 &ug_regs->uempr, &ug_regs->maccfg1);
2322
2323        setbits32(&ug_regs->maccfg1, MACCFG1_ENABLE_RX | MACCFG1_ENABLE_TX);
2324
2325        /*                    Set IPGIFG                     */
2326        /* For more details see the hardware spec.           */
2327        ret_val = init_inter_frame_gap_params(ug_info->nonBackToBackIfgPart1,
2328                                              ug_info->nonBackToBackIfgPart2,
2329                                              ug_info->
2330                                              miminumInterFrameGapEnforcement,
2331                                              ug_info->backToBackInterFrameGap,
2332                                              &ug_regs->ipgifg);
2333        if (ret_val != 0) {
2334                if (netif_msg_ifup(ugeth))
2335                        ugeth_err("%s: IPGIFG initialization parameter too large.",
2336                                  __func__);
2337                return ret_val;
2338        }
2339
2340        /*                    Set HAFDUP                     */
2341        /* For more details see the hardware spec.           */
2342        ret_val = init_half_duplex_params(ug_info->altBeb,
2343                                          ug_info->backPressureNoBackoff,
2344                                          ug_info->noBackoff,
2345                                          ug_info->excessDefer,
2346                                          ug_info->altBebTruncation,
2347                                          ug_info->maxRetransmission,
2348                                          ug_info->collisionWindow,
2349                                          &ug_regs->hafdup);
2350        if (ret_val != 0) {
2351                if (netif_msg_ifup(ugeth))
2352                        ugeth_err("%s: Half Duplex initialization parameter too large.",
2353                          __func__);
2354                return ret_val;
2355        }
2356
2357        /*                    Set IFSTAT                     */
2358        /* For more details see the hardware spec.           */
2359        /* Read only - resets upon read                      */
2360        ifstat = in_be32(&ug_regs->ifstat);
2361
2362        /*                    Clear UEMPR                    */
2363        /* For more details see the hardware spec.           */
2364        out_be32(&ug_regs->uempr, 0);
2365
2366        /*                    Set UESCR                      */
2367        /* For more details see the hardware spec.           */
2368        init_hw_statistics_gathering_mode((ug_info->statisticsMode &
2369                                UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE),
2370                                0, &uf_regs->upsmr, &ug_regs->uescr);
2371
2372        /* Allocate Tx bds */
2373        for (j = 0; j < ug_info->numQueuesTx; j++) {
2374                /* Allocate in multiple of
2375                   UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT,
2376                   according to spec */
2377                length = ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd))
2378                          / UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2379                    * UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2380                if ((ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)) %
2381                    UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT)
2382                        length += UCC_GETH_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
2383                if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2384                        u32 align = 4;
2385                        if (UCC_GETH_TX_BD_RING_ALIGNMENT > 4)
2386                                align = UCC_GETH_TX_BD_RING_ALIGNMENT;
2387                        ugeth->tx_bd_ring_offset[j] =
2388                                (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2389
2390                        if (ugeth->tx_bd_ring_offset[j] != 0)
2391                                ugeth->p_tx_bd_ring[j] =
2392                                        (u8 __iomem *)((ugeth->tx_bd_ring_offset[j] +
2393                                        align) & ~(align - 1));
2394                } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2395                        ugeth->tx_bd_ring_offset[j] =
2396                            qe_muram_alloc(length,
2397                                           UCC_GETH_TX_BD_RING_ALIGNMENT);
2398                        if (!IS_ERR_VALUE(ugeth->tx_bd_ring_offset[j]))
2399                                ugeth->p_tx_bd_ring[j] =
2400                                    (u8 __iomem *) qe_muram_addr(ugeth->
2401                                                         tx_bd_ring_offset[j]);
2402                }
2403                if (!ugeth->p_tx_bd_ring[j]) {
2404                        if (netif_msg_ifup(ugeth))
2405                                ugeth_err
2406                                    ("%s: Can not allocate memory for Tx bd rings.",
2407                                     __func__);
2408                        return -ENOMEM;
2409                }
2410                /* Zero unused end of bd ring, according to spec */
2411                memset_io((void __iomem *)(ugeth->p_tx_bd_ring[j] +
2412                       ug_info->bdRingLenTx[j] * sizeof(struct qe_bd)), 0,
2413                       length - ug_info->bdRingLenTx[j] * sizeof(struct qe_bd));
2414        }
2415
2416        /* Allocate Rx bds */
2417        for (j = 0; j < ug_info->numQueuesRx; j++) {
2418                length = ug_info->bdRingLenRx[j] * sizeof(struct qe_bd);
2419                if (uf_info->bd_mem_part == MEM_PART_SYSTEM) {
2420                        u32 align = 4;
2421                        if (UCC_GETH_RX_BD_RING_ALIGNMENT > 4)
2422                                align = UCC_GETH_RX_BD_RING_ALIGNMENT;
2423                        ugeth->rx_bd_ring_offset[j] =
2424                                (u32) kmalloc((u32) (length + align), GFP_KERNEL);
2425                        if (ugeth->rx_bd_ring_offset[j] != 0)
2426                                ugeth->p_rx_bd_ring[j] =
2427                                        (u8 __iomem *)((ugeth->rx_bd_ring_offset[j] +
2428                                        align) & ~(align - 1));
2429                } else if (uf_info->bd_mem_part == MEM_PART_MURAM) {
2430                        ugeth->rx_bd_ring_offset[j] =
2431                            qe_muram_alloc(length,
2432                                           UCC_GETH_RX_BD_RING_ALIGNMENT);
2433                        if (!IS_ERR_VALUE(ugeth->rx_bd_ring_offset[j]))
2434                                ugeth->p_rx_bd_ring[j] =
2435                                    (u8 __iomem *) qe_muram_addr(ugeth->
2436                                                         rx_bd_ring_offset[j]);
2437                }
2438                if (!ugeth->p_rx_bd_ring[j]) {
2439                        if (netif_msg_ifup(ugeth))
2440                                ugeth_err
2441                                    ("%s: Can not allocate memory for Rx bd rings.",
2442                                     __func__);
2443                        return -ENOMEM;
2444                }
2445        }
2446
2447        /* Init Tx bds */
2448        for (j = 0; j < ug_info->numQueuesTx; j++) {
2449                /* Setup the skbuff rings */
2450                ugeth->tx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2451                                              ugeth->ug_info->bdRingLenTx[j],
2452                                              GFP_KERNEL);
2453
2454                if (ugeth->tx_skbuff[j] == NULL) {
2455                        if (netif_msg_ifup(ugeth))
2456                                ugeth_err("%s: Could not allocate tx_skbuff",
2457                                          __func__);
2458                        return -ENOMEM;
2459                }
2460
2461                for (i = 0; i < ugeth->ug_info->bdRingLenTx[j]; i++)
2462                        ugeth->tx_skbuff[j][i] = NULL;
2463
2464                ugeth->skb_curtx[j] = ugeth->skb_dirtytx[j] = 0;
2465                bd = ugeth->confBd[j] = ugeth->txBd[j] = ugeth->p_tx_bd_ring[j];
2466                for (i = 0; i < ug_info->bdRingLenTx[j]; i++) {
2467                        /* clear bd buffer */
2468                        out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2469                        /* set bd status and length */
2470                        out_be32((u32 __iomem *)bd, 0);
2471                        bd += sizeof(struct qe_bd);
2472                }
2473                bd -= sizeof(struct qe_bd);
2474                /* set bd status and length */
2475                out_be32((u32 __iomem *)bd, T_W); /* for last BD set Wrap bit */
2476        }
2477
2478        /* Init Rx bds */
2479        for (j = 0; j < ug_info->numQueuesRx; j++) {
2480                /* Setup the skbuff rings */
2481                ugeth->rx_skbuff[j] = kmalloc(sizeof(struct sk_buff *) *
2482                                              ugeth->ug_info->bdRingLenRx[j],
2483                                              GFP_KERNEL);
2484
2485                if (ugeth->rx_skbuff[j] == NULL) {
2486                        if (netif_msg_ifup(ugeth))
2487                                ugeth_err("%s: Could not allocate rx_skbuff",
2488                                          __func__);
2489                        return -ENOMEM;
2490                }
2491
2492                for (i = 0; i < ugeth->ug_info->bdRingLenRx[j]; i++)
2493                        ugeth->rx_skbuff[j][i] = NULL;
2494
2495                ugeth->skb_currx[j] = 0;
2496                bd = ugeth->rxBd[j] = ugeth->p_rx_bd_ring[j];
2497                for (i = 0; i < ug_info->bdRingLenRx[j]; i++) {
2498                        /* set bd status and length */
2499                        out_be32((u32 __iomem *)bd, R_I);
2500                        /* clear bd buffer */
2501                        out_be32(&((struct qe_bd __iomem *)bd)->buf, 0);
2502                        bd += sizeof(struct qe_bd);
2503                }
2504                bd -= sizeof(struct qe_bd);
2505                /* set bd status and length */
2506                out_be32((u32 __iomem *)bd, R_W); /* for last BD set Wrap bit */
2507        }
2508
2509        /*
2510         * Global PRAM
2511         */
2512        /* Tx global PRAM */
2513        /* Allocate global tx parameter RAM page */
2514        ugeth->tx_glbl_pram_offset =
2515            qe_muram_alloc(sizeof(struct ucc_geth_tx_global_pram),
2516                           UCC_GETH_TX_GLOBAL_PRAM_ALIGNMENT);
2517        if (IS_ERR_VALUE(ugeth->tx_glbl_pram_offset)) {
2518                if (netif_msg_ifup(ugeth))
2519                        ugeth_err
2520                            ("%s: Can not allocate DPRAM memory for p_tx_glbl_pram.",
2521                             __func__);
2522                return -ENOMEM;
2523        }
2524        ugeth->p_tx_glbl_pram =
2525            (struct ucc_geth_tx_global_pram __iomem *) qe_muram_addr(ugeth->
2526                                                        tx_glbl_pram_offset);
2527        /* Zero out p_tx_glbl_pram */
2528        memset_io((void __iomem *)ugeth->p_tx_glbl_pram, 0, sizeof(struct ucc_geth_tx_global_pram));
2529
2530        /* Fill global PRAM */
2531
2532        /* TQPTR */
2533        /* Size varies with number of Tx threads */
2534        ugeth->thread_dat_tx_offset =
2535            qe_muram_alloc(numThreadsTxNumerical *
2536                           sizeof(struct ucc_geth_thread_data_tx) +
2537                           32 * (numThreadsTxNumerical == 1),
2538                           UCC_GETH_THREAD_DATA_ALIGNMENT);
2539        if (IS_ERR_VALUE(ugeth->thread_dat_tx_offset)) {
2540                if (netif_msg_ifup(ugeth))
2541                        ugeth_err
2542                            ("%s: Can not allocate DPRAM memory for p_thread_data_tx.",
2543                             __func__);
2544                return -ENOMEM;
2545        }
2546
2547        ugeth->p_thread_data_tx =
2548            (struct ucc_geth_thread_data_tx __iomem *) qe_muram_addr(ugeth->
2549                                                        thread_dat_tx_offset);
2550        out_be32(&ugeth->p_tx_glbl_pram->tqptr, ugeth->thread_dat_tx_offset);
2551
2552        /* vtagtable */
2553        for (i = 0; i < UCC_GETH_TX_VTAG_TABLE_ENTRY_MAX; i++)
2554                out_be32(&ugeth->p_tx_glbl_pram->vtagtable[i],
2555                         ug_info->vtagtable[i]);
2556
2557        /* iphoffset */
2558        for (i = 0; i < TX_IP_OFFSET_ENTRY_MAX; i++)
2559                out_8(&ugeth->p_tx_glbl_pram->iphoffset[i],
2560                                ug_info->iphoffset[i]);
2561
2562        /* SQPTR */
2563        /* Size varies with number of Tx queues */
2564        ugeth->send_q_mem_reg_offset =
2565            qe_muram_alloc(ug_info->numQueuesTx *
2566                           sizeof(struct ucc_geth_send_queue_qd),
2567                           UCC_GETH_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
2568        if (IS_ERR_VALUE(ugeth->send_q_mem_reg_offset)) {
2569                if (netif_msg_ifup(ugeth))
2570                        ugeth_err
2571                            ("%s: Can not allocate DPRAM memory for p_send_q_mem_reg.",
2572                             __func__);
2573                return -ENOMEM;
2574        }
2575
2576        ugeth->p_send_q_mem_reg =
2577            (struct ucc_geth_send_queue_mem_region __iomem *) qe_muram_addr(ugeth->
2578                        send_q_mem_reg_offset);
2579        out_be32(&ugeth->p_tx_glbl_pram->sqptr, ugeth->send_q_mem_reg_offset);
2580
2581        /* Setup the table */
2582        /* Assume BD rings are already established */
2583        for (i = 0; i < ug_info->numQueuesTx; i++) {
2584                endOfRing =
2585                    ugeth->p_tx_bd_ring[i] + (ug_info->bdRingLenTx[i] -
2586                                              1) * sizeof(struct qe_bd);
2587                if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2588                        out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2589                                 (u32) virt_to_phys(ugeth->p_tx_bd_ring[i]));
2590                        out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2591                                 last_bd_completed_address,
2592                                 (u32) virt_to_phys(endOfRing));
2593                } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2594                           MEM_PART_MURAM) {
2595                        out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].bd_ring_base,
2596                                 (u32) immrbar_virt_to_phys(ugeth->
2597                                                            p_tx_bd_ring[i]));
2598                        out_be32(&ugeth->p_send_q_mem_reg->sqqd[i].
2599                                 last_bd_completed_address,
2600                                 (u32) immrbar_virt_to_phys(endOfRing));
2601                }
2602        }
2603
2604        /* schedulerbasepointer */
2605
2606        if (ug_info->numQueuesTx > 1) {
2607        /* scheduler exists only if more than 1 tx queue */
2608                ugeth->scheduler_offset =
2609                    qe_muram_alloc(sizeof(struct ucc_geth_scheduler),
2610                                   UCC_GETH_SCHEDULER_ALIGNMENT);
2611                if (IS_ERR_VALUE(ugeth->scheduler_offset)) {
2612                        if (netif_msg_ifup(ugeth))
2613                                ugeth_err
2614                                 ("%s: Can not allocate DPRAM memory for p_scheduler.",
2615                                     __func__);
2616                        return -ENOMEM;
2617                }
2618
2619                ugeth->p_scheduler =
2620                    (struct ucc_geth_scheduler __iomem *) qe_muram_addr(ugeth->
2621                                                           scheduler_offset);
2622                out_be32(&ugeth->p_tx_glbl_pram->schedulerbasepointer,
2623                         ugeth->scheduler_offset);
2624                /* Zero out p_scheduler */
2625                memset_io((void __iomem *)ugeth->p_scheduler, 0, sizeof(struct ucc_geth_scheduler));
2626
2627                /* Set values in scheduler */
2628                out_be32(&ugeth->p_scheduler->mblinterval,
2629                         ug_info->mblinterval);
2630                out_be16(&ugeth->p_scheduler->nortsrbytetime,
2631                         ug_info->nortsrbytetime);
2632                out_8(&ugeth->p_scheduler->fracsiz, ug_info->fracsiz);
2633                out_8(&ugeth->p_scheduler->strictpriorityq,
2634                                ug_info->strictpriorityq);
2635                out_8(&ugeth->p_scheduler->txasap, ug_info->txasap);
2636                out_8(&ugeth->p_scheduler->extrabw, ug_info->extrabw);
2637                for (i = 0; i < NUM_TX_QUEUES; i++)
2638                        out_8(&ugeth->p_scheduler->weightfactor[i],
2639                            ug_info->weightfactor[i]);
2640
2641                /* Set pointers to cpucount registers in scheduler */
2642                ugeth->p_cpucount[0] = &(ugeth->p_scheduler->cpucount0);
2643                ugeth->p_cpucount[1] = &(ugeth->p_scheduler->cpucount1);
2644                ugeth->p_cpucount[2] = &(ugeth->p_scheduler->cpucount2);
2645                ugeth->p_cpucount[3] = &(ugeth->p_scheduler->cpucount3);
2646                ugeth->p_cpucount[4] = &(ugeth->p_scheduler->cpucount4);
2647                ugeth->p_cpucount[5] = &(ugeth->p_scheduler->cpucount5);
2648                ugeth->p_cpucount[6] = &(ugeth->p_scheduler->cpucount6);
2649                ugeth->p_cpucount[7] = &(ugeth->p_scheduler->cpucount7);
2650        }
2651
2652        /* schedulerbasepointer */
2653        /* TxRMON_PTR (statistics) */
2654        if (ug_info->
2655            statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
2656                ugeth->tx_fw_statistics_pram_offset =
2657                    qe_muram_alloc(sizeof
2658                                   (struct ucc_geth_tx_firmware_statistics_pram),
2659                                   UCC_GETH_TX_STATISTICS_ALIGNMENT);
2660                if (IS_ERR_VALUE(ugeth->tx_fw_statistics_pram_offset)) {
2661                        if (netif_msg_ifup(ugeth))
2662                                ugeth_err
2663                                    ("%s: Can not allocate DPRAM memory for"
2664                                        " p_tx_fw_statistics_pram.",
2665                                        __func__);
2666                        return -ENOMEM;
2667                }
2668                ugeth->p_tx_fw_statistics_pram =
2669                    (struct ucc_geth_tx_firmware_statistics_pram __iomem *)
2670                    qe_muram_addr(ugeth->tx_fw_statistics_pram_offset);
2671                /* Zero out p_tx_fw_statistics_pram */
2672                memset_io((void __iomem *)ugeth->p_tx_fw_statistics_pram,
2673                       0, sizeof(struct ucc_geth_tx_firmware_statistics_pram));
2674        }
2675
2676        /* temoder */
2677        /* Already has speed set */
2678
2679        if (ug_info->numQueuesTx > 1)
2680                temoder |= TEMODER_SCHEDULER_ENABLE;
2681        if (ug_info->ipCheckSumGenerate)
2682                temoder |= TEMODER_IP_CHECKSUM_GENERATE;
2683        temoder |= ((ug_info->numQueuesTx - 1) << TEMODER_NUM_OF_QUEUES_SHIFT);
2684        out_be16(&ugeth->p_tx_glbl_pram->temoder, temoder);
2685
2686        test = in_be16(&ugeth->p_tx_glbl_pram->temoder);
2687
2688        /* Function code register value to be used later */
2689        function_code = UCC_BMR_BO_BE | UCC_BMR_GBL;
2690        /* Required for QE */
2691
2692        /* function code register */
2693        out_be32(&ugeth->p_tx_glbl_pram->tstate, ((u32) function_code) << 24);
2694
2695        /* Rx global PRAM */
2696        /* Allocate global rx parameter RAM page */
2697        ugeth->rx_glbl_pram_offset =
2698            qe_muram_alloc(sizeof(struct ucc_geth_rx_global_pram),
2699                           UCC_GETH_RX_GLOBAL_PRAM_ALIGNMENT);
2700        if (IS_ERR_VALUE(ugeth->rx_glbl_pram_offset)) {
2701                if (netif_msg_ifup(ugeth))
2702                        ugeth_err
2703                            ("%s: Can not allocate DPRAM memory for p_rx_glbl_pram.",
2704                             __func__);
2705                return -ENOMEM;
2706        }
2707        ugeth->p_rx_glbl_pram =
2708            (struct ucc_geth_rx_global_pram __iomem *) qe_muram_addr(ugeth->
2709                                                        rx_glbl_pram_offset);
2710        /* Zero out p_rx_glbl_pram */
2711        memset_io((void __iomem *)ugeth->p_rx_glbl_pram, 0, sizeof(struct ucc_geth_rx_global_pram));
2712
2713        /* Fill global PRAM */
2714
2715        /* RQPTR */
2716        /* Size varies with number of Rx threads */
2717        ugeth->thread_dat_rx_offset =
2718            qe_muram_alloc(numThreadsRxNumerical *
2719                           sizeof(struct ucc_geth_thread_data_rx),
2720                           UCC_GETH_THREAD_DATA_ALIGNMENT);
2721        if (IS_ERR_VALUE(ugeth->thread_dat_rx_offset)) {
2722                if (netif_msg_ifup(ugeth))
2723                        ugeth_err
2724                            ("%s: Can not allocate DPRAM memory for p_thread_data_rx.",
2725                             __func__);
2726                return -ENOMEM;
2727        }
2728
2729        ugeth->p_thread_data_rx =
2730            (struct ucc_geth_thread_data_rx __iomem *) qe_muram_addr(ugeth->
2731                                                        thread_dat_rx_offset);
2732        out_be32(&ugeth->p_rx_glbl_pram->rqptr, ugeth->thread_dat_rx_offset);
2733
2734        /* typeorlen */
2735        out_be16(&ugeth->p_rx_glbl_pram->typeorlen, ug_info->typeorlen);
2736
2737        /* rxrmonbaseptr (statistics) */
2738        if (ug_info->
2739            statisticsMode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
2740                ugeth->rx_fw_statistics_pram_offset =
2741                    qe_muram_alloc(sizeof
2742                                   (struct ucc_geth_rx_firmware_statistics_pram),
2743                                   UCC_GETH_RX_STATISTICS_ALIGNMENT);
2744                if (IS_ERR_VALUE(ugeth->rx_fw_statistics_pram_offset)) {
2745                        if (netif_msg_ifup(ugeth))
2746                                ugeth_err
2747                                        ("%s: Can not allocate DPRAM memory for"
2748                                        " p_rx_fw_statistics_pram.", __func__);
2749                        return -ENOMEM;
2750                }
2751                ugeth->p_rx_fw_statistics_pram =
2752                    (struct ucc_geth_rx_firmware_statistics_pram __iomem *)
2753                    qe_muram_addr(ugeth->rx_fw_statistics_pram_offset);
2754                /* Zero out p_rx_fw_statistics_pram */
2755                memset_io((void __iomem *)ugeth->p_rx_fw_statistics_pram, 0,
2756                       sizeof(struct ucc_geth_rx_firmware_statistics_pram));
2757        }
2758
2759        /* intCoalescingPtr */
2760
2761        /* Size varies with number of Rx queues */
2762        ugeth->rx_irq_coalescing_tbl_offset =
2763            qe_muram_alloc(ug_info->numQueuesRx *
2764                           sizeof(struct ucc_geth_rx_interrupt_coalescing_entry)
2765                           + 4, UCC_GETH_RX_INTERRUPT_COALESCING_ALIGNMENT);
2766        if (IS_ERR_VALUE(ugeth->rx_irq_coalescing_tbl_offset)) {
2767                if (netif_msg_ifup(ugeth))
2768                        ugeth_err
2769                            ("%s: Can not allocate DPRAM memory for"
2770                                " p_rx_irq_coalescing_tbl.", __func__);
2771                return -ENOMEM;
2772        }
2773
2774        ugeth->p_rx_irq_coalescing_tbl =
2775            (struct ucc_geth_rx_interrupt_coalescing_table __iomem *)
2776            qe_muram_addr(ugeth->rx_irq_coalescing_tbl_offset);
2777        out_be32(&ugeth->p_rx_glbl_pram->intcoalescingptr,
2778                 ugeth->rx_irq_coalescing_tbl_offset);
2779
2780        /* Fill interrupt coalescing table */
2781        for (i = 0; i < ug_info->numQueuesRx; i++) {
2782                out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2783                         interruptcoalescingmaxvalue,
2784                         ug_info->interruptcoalescingmaxvalue[i]);
2785                out_be32(&ugeth->p_rx_irq_coalescing_tbl->coalescingentry[i].
2786                         interruptcoalescingcounter,
2787                         ug_info->interruptcoalescingmaxvalue[i]);
2788        }
2789
2790        /* MRBLR */
2791        init_max_rx_buff_len(uf_info->max_rx_buf_length,
2792                             &ugeth->p_rx_glbl_pram->mrblr);
2793        /* MFLR */
2794        out_be16(&ugeth->p_rx_glbl_pram->mflr, ug_info->maxFrameLength);
2795        /* MINFLR */
2796        init_min_frame_len(ug_info->minFrameLength,
2797                           &ugeth->p_rx_glbl_pram->minflr,
2798                           &ugeth->p_rx_glbl_pram->mrblr);
2799        /* MAXD1 */
2800        out_be16(&ugeth->p_rx_glbl_pram->maxd1, ug_info->maxD1Length);
2801        /* MAXD2 */
2802        out_be16(&ugeth->p_rx_glbl_pram->maxd2, ug_info->maxD2Length);
2803
2804        /* l2qt */
2805        l2qt = 0;
2806        for (i = 0; i < UCC_GETH_VLAN_PRIORITY_MAX; i++)
2807                l2qt |= (ug_info->l2qt[i] << (28 - 4 * i));
2808        out_be32(&ugeth->p_rx_glbl_pram->l2qt, l2qt);
2809
2810        /* l3qt */
2811        for (j = 0; j < UCC_GETH_IP_PRIORITY_MAX; j += 8) {
2812                l3qt = 0;
2813                for (i = 0; i < 8; i++)
2814                        l3qt |= (ug_info->l3qt[j + i] << (28 - 4 * i));
2815                out_be32(&ugeth->p_rx_glbl_pram->l3qt[j/8], l3qt);
2816        }
2817
2818        /* vlantype */
2819        out_be16(&ugeth->p_rx_glbl_pram->vlantype, ug_info->vlantype);
2820
2821        /* vlantci */
2822        out_be16(&ugeth->p_rx_glbl_pram->vlantci, ug_info->vlantci);
2823
2824        /* ecamptr */
2825        out_be32(&ugeth->p_rx_glbl_pram->ecamptr, ug_info->ecamptr);
2826
2827        /* RBDQPTR */
2828        /* Size varies with number of Rx queues */
2829        ugeth->rx_bd_qs_tbl_offset =
2830            qe_muram_alloc(ug_info->numQueuesRx *
2831                           (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2832                            sizeof(struct ucc_geth_rx_prefetched_bds)),
2833                           UCC_GETH_RX_BD_QUEUES_ALIGNMENT);
2834        if (IS_ERR_VALUE(ugeth->rx_bd_qs_tbl_offset)) {
2835                if (netif_msg_ifup(ugeth))
2836                        ugeth_err
2837                            ("%s: Can not allocate DPRAM memory for p_rx_bd_qs_tbl.",
2838                             __func__);
2839                return -ENOMEM;
2840        }
2841
2842        ugeth->p_rx_bd_qs_tbl =
2843            (struct ucc_geth_rx_bd_queues_entry __iomem *) qe_muram_addr(ugeth->
2844                                    rx_bd_qs_tbl_offset);
2845        out_be32(&ugeth->p_rx_glbl_pram->rbdqptr, ugeth->rx_bd_qs_tbl_offset);
2846        /* Zero out p_rx_bd_qs_tbl */
2847        memset_io((void __iomem *)ugeth->p_rx_bd_qs_tbl,
2848               0,
2849               ug_info->numQueuesRx * (sizeof(struct ucc_geth_rx_bd_queues_entry) +
2850                                       sizeof(struct ucc_geth_rx_prefetched_bds)));
2851
2852        /* Setup the table */
2853        /* Assume BD rings are already established */
2854        for (i = 0; i < ug_info->numQueuesRx; i++) {
2855                if (ugeth->ug_info->uf_info.bd_mem_part == MEM_PART_SYSTEM) {
2856                        out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2857                                 (u32) virt_to_phys(ugeth->p_rx_bd_ring[i]));
2858                } else if (ugeth->ug_info->uf_info.bd_mem_part ==
2859                           MEM_PART_MURAM) {
2860                        out_be32(&ugeth->p_rx_bd_qs_tbl[i].externalbdbaseptr,
2861                                 (u32) immrbar_virt_to_phys(ugeth->
2862                                                            p_rx_bd_ring[i]));
2863                }
2864                /* rest of fields handled by QE */
2865        }
2866
2867        /* remoder */
2868        /* Already has speed set */
2869
2870        if (ugeth->rx_extended_features)
2871                remoder |= REMODER_RX_EXTENDED_FEATURES;
2872        if (ug_info->rxExtendedFiltering)
2873                remoder |= REMODER_RX_EXTENDED_FILTERING;
2874        if (ug_info->dynamicMaxFrameLength)
2875                remoder |= REMODER_DYNAMIC_MAX_FRAME_LENGTH;
2876        if (ug_info->dynamicMinFrameLength)
2877                remoder |= REMODER_DYNAMIC_MIN_FRAME_LENGTH;
2878        remoder |=
2879            ug_info->vlanOperationTagged << REMODER_VLAN_OPERATION_TAGGED_SHIFT;
2880        remoder |=
2881            ug_info->
2882            vlanOperationNonTagged << REMODER_VLAN_OPERATION_NON_TAGGED_SHIFT;
2883        remoder |= ug_info->rxQoSMode << REMODER_RX_QOS_MODE_SHIFT;
2884        remoder |= ((ug_info->numQueuesRx - 1) << REMODER_NUM_OF_QUEUES_SHIFT);
2885        if (ug_info->ipCheckSumCheck)
2886                remoder |= REMODER_IP_CHECKSUM_CHECK;
2887        if (ug_info->ipAddressAlignment)
2888                remoder |= REMODER_IP_ADDRESS_ALIGNMENT;
2889        out_be32(&ugeth->p_rx_glbl_pram->remoder, remoder);
2890
2891        /* Note that this function must be called */
2892        /* ONLY AFTER p_tx_fw_statistics_pram */
2893        /* andp_UccGethRxFirmwareStatisticsPram are allocated ! */
2894        init_firmware_statistics_gathering_mode((ug_info->
2895                statisticsMode &
2896                UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX),
2897                (ug_info->statisticsMode &
2898                UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX),
2899                &ugeth->p_tx_glbl_pram->txrmonbaseptr,
2900                ugeth->tx_fw_statistics_pram_offset,
2901                &ugeth->p_rx_glbl_pram->rxrmonbaseptr,
2902                ugeth->rx_fw_statistics_pram_offset,
2903                &ugeth->p_tx_glbl_pram->temoder,
2904                &ugeth->p_rx_glbl_pram->remoder);
2905
2906        /* function code register */
2907        out_8(&ugeth->p_rx_glbl_pram->rstate, function_code);
2908
2909        /* initialize extended filtering */
2910        if (ug_info->rxExtendedFiltering) {
2911                if (!ug_info->extendedFilteringChainPointer) {
2912                        if (netif_msg_ifup(ugeth))
2913                                ugeth_err("%s: Null Extended Filtering Chain Pointer.",
2914                                          __func__);
2915                        return -EINVAL;
2916                }
2917
2918                /* Allocate memory for extended filtering Mode Global
2919                Parameters */
2920                ugeth->exf_glbl_param_offset =
2921                    qe_muram_alloc(sizeof(struct ucc_geth_exf_global_pram),
2922                UCC_GETH_RX_EXTENDED_FILTERING_GLOBAL_PARAMETERS_ALIGNMENT);
2923                if (IS_ERR_VALUE(ugeth->exf_glbl_param_offset)) {
2924                        if (netif_msg_ifup(ugeth))
2925                                ugeth_err
2926                                        ("%s: Can not allocate DPRAM memory for"
2927                                        " p_exf_glbl_param.", __func__);
2928                        return -ENOMEM;
2929                }
2930
2931                ugeth->p_exf_glbl_param =
2932                    (struct ucc_geth_exf_global_pram __iomem *) qe_muram_addr(ugeth->
2933                                 exf_glbl_param_offset);
2934                out_be32(&ugeth->p_rx_glbl_pram->exfGlobalParam,
2935                         ugeth->exf_glbl_param_offset);
2936                out_be32(&ugeth->p_exf_glbl_param->l2pcdptr,
2937                         (u32) ug_info->extendedFilteringChainPointer);
2938
2939        } else {                /* initialize 82xx style address filtering */
2940
2941                /* Init individual address recognition registers to disabled */
2942
2943                for (j = 0; j < NUM_OF_PADDRS; j++)
2944                        ugeth_82xx_filtering_clear_addr_in_paddr(ugeth, (u8) j);
2945
2946                p_82xx_addr_filt =
2947                    (struct ucc_geth_82xx_address_filtering_pram __iomem *) ugeth->
2948                    p_rx_glbl_pram->addressfiltering;
2949
2950                ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2951                        ENET_ADDR_TYPE_GROUP);
2952                ugeth_82xx_filtering_clear_all_addr_in_hash(ugeth,
2953                        ENET_ADDR_TYPE_INDIVIDUAL);
2954        }
2955
2956        /*
2957         * Initialize UCC at QE level
2958         */
2959
2960        command = QE_INIT_TX_RX;
2961
2962        /* Allocate shadow InitEnet command parameter structure.
2963         * This is needed because after the InitEnet command is executed,
2964         * the structure in DPRAM is released, because DPRAM is a premium
2965         * resource.
2966         * This shadow structure keeps a copy of what was done so that the
2967         * allocated resources can be released when the channel is freed.
2968         */
2969        if (!(ugeth->p_init_enet_param_shadow =
2970              kmalloc(sizeof(struct ucc_geth_init_pram), GFP_KERNEL))) {
2971                if (netif_msg_ifup(ugeth))
2972                        ugeth_err
2973                            ("%s: Can not allocate memory for"
2974                                " p_UccInitEnetParamShadows.", __func__);
2975                return -ENOMEM;
2976        }
2977        /* Zero out *p_init_enet_param_shadow */
2978        memset((char *)ugeth->p_init_enet_param_shadow,
2979               0, sizeof(struct ucc_geth_init_pram));
2980
2981        /* Fill shadow InitEnet command parameter structure */
2982
2983        ugeth->p_init_enet_param_shadow->resinit1 =
2984            ENET_INIT_PARAM_MAGIC_RES_INIT1;
2985        ugeth->p_init_enet_param_shadow->resinit2 =
2986            ENET_INIT_PARAM_MAGIC_RES_INIT2;
2987        ugeth->p_init_enet_param_shadow->resinit3 =
2988            ENET_INIT_PARAM_MAGIC_RES_INIT3;
2989        ugeth->p_init_enet_param_shadow->resinit4 =
2990            ENET_INIT_PARAM_MAGIC_RES_INIT4;
2991        ugeth->p_init_enet_param_shadow->resinit5 =
2992            ENET_INIT_PARAM_MAGIC_RES_INIT5;
2993        ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2994            ((u32) ug_info->numThreadsRx) << ENET_INIT_PARAM_RGF_SHIFT;
2995        ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2996            ((u32) ug_info->numThreadsTx) << ENET_INIT_PARAM_TGF_SHIFT;
2997
2998        ugeth->p_init_enet_param_shadow->rgftgfrxglobal |=
2999            ugeth->rx_glbl_pram_offset | ug_info->riscRx;
3000        if ((ug_info->largestexternallookupkeysize !=
3001             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_NONE) &&
3002            (ug_info->largestexternallookupkeysize !=
3003             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_8_BYTES) &&
3004            (ug_info->largestexternallookupkeysize !=
3005             QE_FLTR_LARGEST_EXTERNAL_TABLE_LOOKUP_KEY_SIZE_16_BYTES)) {
3006                if (netif_msg_ifup(ugeth))
3007                        ugeth_err("%s: Invalid largest External Lookup Key Size.",
3008                                  __func__);
3009                return -EINVAL;
3010        }
3011        ugeth->p_init_enet_param_shadow->largestexternallookupkeysize =
3012            ug_info->largestexternallookupkeysize;
3013        size = sizeof(struct ucc_geth_thread_rx_pram);
3014        if (ug_info->rxExtendedFiltering) {
3015                size += THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING;
3016                if (ug_info->largestexternallookupkeysize ==
3017                    QE_FLTR_TABLE_LOOKUP_KEY_SIZE_8_BYTES)
3018                        size +=
3019                            THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_8;
3020                if (ug_info->largestexternallookupkeysize ==
3021                    QE_FLTR_TABLE_LOOKUP_KEY_SIZE_16_BYTES)
3022                        size +=
3023                            THREAD_RX_PRAM_ADDITIONAL_FOR_EXTENDED_FILTERING_16;
3024        }
3025
3026        if ((ret_val = fill_init_enet_entries(ugeth, &(ugeth->
3027                p_init_enet_param_shadow->rxthread[0]),
3028                (u8) (numThreadsRxNumerical + 1)
3029                /* Rx needs one extra for terminator */
3030                , size, UCC_GETH_THREAD_RX_PRAM_ALIGNMENT,
3031                ug_info->riscRx, 1)) != 0) {
3032                if (netif_msg_ifup(ugeth))
3033                                ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3034                                        __func__);
3035                return ret_val;
3036        }
3037
3038        ugeth->p_init_enet_param_shadow->txglobal =
3039            ugeth->tx_glbl_pram_offset | ug_info->riscTx;
3040        if ((ret_val =
3041             fill_init_enet_entries(ugeth,
3042                                    &(ugeth->p_init_enet_param_shadow->
3043                                      txthread[0]), numThreadsTxNumerical,
3044                                    sizeof(struct ucc_geth_thread_tx_pram),
3045                                    UCC_GETH_THREAD_TX_PRAM_ALIGNMENT,
3046                                    ug_info->riscTx, 0)) != 0) {
3047                if (netif_msg_ifup(ugeth))
3048                        ugeth_err("%s: Can not fill p_init_enet_param_shadow.",
3049                                  __func__);
3050                return ret_val;
3051        }
3052
3053        /* Load Rx bds with buffers */
3054        for (i = 0; i < ug_info->numQueuesRx; i++) {
3055                if ((ret_val = rx_bd_buffer_set(ugeth, (u8) i)) != 0) {
3056                        if (netif_msg_ifup(ugeth))
3057                                ugeth_err("%s: Can not fill Rx bds with buffers.",
3058                                          __func__);
3059                        return ret_val;
3060                }
3061        }
3062
3063        /* Allocate InitEnet command parameter structure */
3064        init_enet_pram_offset = qe_muram_alloc(sizeof(struct ucc_geth_init_pram), 4);
3065        if (IS_ERR_VALUE(init_enet_pram_offset)) {
3066                if (netif_msg_ifup(ugeth))
3067                        ugeth_err
3068                            ("%s: Can not allocate DPRAM memory for p_init_enet_pram.",
3069                             __func__);
3070                return -ENOMEM;
3071        }
3072        p_init_enet_pram =
3073            (struct ucc_geth_init_pram __iomem *) qe_muram_addr(init_enet_pram_offset);
3074
3075        /* Copy shadow InitEnet command parameter structure into PRAM */
3076        out_8(&p_init_enet_pram->resinit1,
3077                        ugeth->p_init_enet_param_shadow->resinit1);
3078        out_8(&p_init_enet_pram->resinit2,
3079                        ugeth->p_init_enet_param_shadow->resinit2);
3080        out_8(&p_init_enet_pram->resinit3,
3081                        ugeth->p_init_enet_param_shadow->resinit3);
3082        out_8(&p_init_enet_pram->resinit4,
3083                        ugeth->p_init_enet_param_shadow->resinit4);
3084        out_be16(&p_init_enet_pram->resinit5,
3085                 ugeth->p_init_enet_param_shadow->resinit5);
3086        out_8(&p_init_enet_pram->largestexternallookupkeysize,
3087            ugeth->p_init_enet_param_shadow->largestexternallookupkeysize);
3088        out_be32(&p_init_enet_pram->rgftgfrxglobal,
3089                 ugeth->p_init_enet_param_shadow->rgftgfrxglobal);
3090        for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_RX; i++)
3091                out_be32(&p_init_enet_pram->rxthread[i],
3092                         ugeth->p_init_enet_param_shadow->rxthread[i]);
3093        out_be32(&p_init_enet_pram->txglobal,
3094                 ugeth->p_init_enet_param_shadow->txglobal);
3095        for (i = 0; i < ENET_INIT_PARAM_MAX_ENTRIES_TX; i++)
3096                out_be32(&p_init_enet_pram->txthread[i],
3097                         ugeth->p_init_enet_param_shadow->txthread[i]);
3098
3099        /* Issue QE command */
3100        cecr_subblock =
3101            ucc_fast_get_qe_cr_subblock(ugeth->ug_info->uf_info.ucc_num);
3102        qe_issue_cmd(command, cecr_subblock, QE_CR_PROTOCOL_ETHERNET,
3103                     init_enet_pram_offset);
3104
3105        /* Free InitEnet command parameter */
3106        qe_muram_free(init_enet_pram_offset);
3107
3108        return 0;
3109}
3110
3111/* This is called by the kernel when a frame is ready for transmission. */
3112/* It is pointed to by the dev->hard_start_xmit function pointer */
3113static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
3114{
3115        struct ucc_geth_private *ugeth = netdev_priv(dev);
3116#ifdef CONFIG_UGETH_TX_ON_DEMAND
3117        struct ucc_fast_private *uccf;
3118#endif
3119        u8 __iomem *bd;                 /* BD pointer */
3120        u32 bd_status;
3121        u8 txQ = 0;
3122        unsigned long flags;
3123
3124        ugeth_vdbg("%s: IN", __func__);
3125
3126        spin_lock_irqsave(&ugeth->lock, flags);
3127
3128        dev->stats.tx_bytes += skb->len;
3129
3130        /* Start from the next BD that should be filled */
3131        bd = ugeth->txBd[txQ];
3132        bd_status = in_be32((u32 __iomem *)bd);
3133        /* Save the skb pointer so we can free it later */
3134        ugeth->tx_skbuff[txQ][ugeth->skb_curtx[txQ]] = skb;
3135
3136        /* Update the current skb pointer (wrapping if this was the last) */
3137        ugeth->skb_curtx[txQ] =
3138            (ugeth->skb_curtx[txQ] +
3139             1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3140
3141        /* set up the buffer descriptor */
3142        out_be32(&((struct qe_bd __iomem *)bd)->buf,
3143                      dma_map_single(ugeth->dev, skb->data,
3144                              skb->len, DMA_TO_DEVICE));
3145
3146        /* printk(KERN_DEBUG"skb->data is 0x%x\n",skb->data); */
3147
3148        bd_status = (bd_status & T_W) | T_R | T_I | T_L | skb->len;
3149
3150        /* set bd status and length */
3151        out_be32((u32 __iomem *)bd, bd_status);
3152
3153        /* Move to next BD in the ring */
3154        if (!(bd_status & T_W))
3155                bd += sizeof(struct qe_bd);
3156        else
3157                bd = ugeth->p_tx_bd_ring[txQ];
3158
3159        /* If the next BD still needs to be cleaned up, then the bds
3160           are full.  We need to tell the kernel to stop sending us stuff. */
3161        if (bd == ugeth->confBd[txQ]) {
3162                if (!netif_queue_stopped(dev))
3163                        netif_stop_queue(dev);
3164        }
3165
3166        ugeth->txBd[txQ] = bd;
3167
3168        if (ugeth->p_scheduler) {
3169                ugeth->cpucount[txQ]++;
3170                /* Indicate to QE that there are more Tx bds ready for
3171                transmission */
3172                /* This is done by writing a running counter of the bd
3173                count to the scheduler PRAM. */
3174                out_be16(ugeth->p_cpucount[txQ], ugeth->cpucount[txQ]);
3175        }
3176
3177#ifdef CONFIG_UGETH_TX_ON_DEMAND
3178        uccf = ugeth->uccf;
3179        out_be16(uccf->p_utodr, UCC_FAST_TOD);
3180#endif
3181        spin_unlock_irqrestore(&ugeth->lock, flags);
3182
3183        return NETDEV_TX_OK;
3184}
3185
3186static int ucc_geth_rx(struct ucc_geth_private *ugeth, u8 rxQ, int rx_work_limit)
3187{
3188        struct sk_buff *skb;
3189        u8 __iomem *bd;
3190        u16 length, howmany = 0;
3191        u32 bd_status;
3192        u8 *bdBuffer;
3193        struct net_device *dev;
3194
3195        ugeth_vdbg("%s: IN", __func__);
3196
3197        dev = ugeth->ndev;
3198
3199        /* collect received buffers */
3200        bd = ugeth->rxBd[rxQ];
3201
3202        bd_status = in_be32((u32 __iomem *)bd);
3203
3204        /* while there are received buffers and BD is full (~R_E) */
3205        while (!((bd_status & (R_E)) || (--rx_work_limit < 0))) {
3206                bdBuffer = (u8 *) in_be32(&((struct qe_bd __iomem *)bd)->buf);
3207                length = (u16) ((bd_status & BD_LENGTH_MASK) - 4);
3208                skb = ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]];
3209
3210                /* determine whether buffer is first, last, first and last
3211                (single buffer frame) or middle (not first and not last) */
3212                if (!skb ||
3213                    (!(bd_status & (R_F | R_L))) ||
3214                    (bd_status & R_ERRORS_FATAL)) {
3215                        if (netif_msg_rx_err(ugeth))
3216                                ugeth_err("%s, %d: ERROR!!! skb - 0x%08x",
3217                                           __func__, __LINE__, (u32) skb);
3218                        if (skb) {
3219                                skb->data = skb->head + NET_SKB_PAD;
3220                                skb->len = 0;
3221                                skb_reset_tail_pointer(skb);
3222                                __skb_queue_head(&ugeth->rx_recycle, skb);
3223                        }
3224
3225                        ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = NULL;
3226                        dev->stats.rx_dropped++;
3227                } else {
3228                        dev->stats.rx_packets++;
3229                        howmany++;
3230
3231                        /* Prep the skb for the packet */
3232                        skb_put(skb, length);
3233
3234                        /* Tell the skb what kind of packet this is */
3235                        skb->protocol = eth_type_trans(skb, ugeth->ndev);
3236
3237                        dev->stats.rx_bytes += length;
3238                        /* Send the packet up the stack */
3239                        netif_receive_skb(skb);
3240                }
3241
3242                skb = get_new_skb(ugeth, bd);
3243                if (!skb) {
3244                        if (netif_msg_rx_err(ugeth))
3245                                ugeth_warn("%s: No Rx Data Buffer", __func__);
3246                        dev->stats.rx_dropped++;
3247                        break;
3248                }
3249
3250                ugeth->rx_skbuff[rxQ][ugeth->skb_currx[rxQ]] = skb;
3251
3252                /* update to point at the next skb */
3253                ugeth->skb_currx[rxQ] =
3254                    (ugeth->skb_currx[rxQ] +
3255                     1) & RX_RING_MOD_MASK(ugeth->ug_info->bdRingLenRx[rxQ]);
3256
3257                if (bd_status & R_W)
3258                        bd = ugeth->p_rx_bd_ring[rxQ];
3259                else
3260                        bd += sizeof(struct qe_bd);
3261
3262                bd_status = in_be32((u32 __iomem *)bd);
3263        }
3264
3265        ugeth->rxBd[rxQ] = bd;
3266        return howmany;
3267}
3268
3269static int ucc_geth_tx(struct net_device *dev, u8 txQ)
3270{
3271        /* Start from the next BD that should be filled */
3272        struct ucc_geth_private *ugeth = netdev_priv(dev);
3273        u8 __iomem *bd;         /* BD pointer */
3274        u32 bd_status;
3275
3276        bd = ugeth->confBd[txQ];
3277        bd_status = in_be32((u32 __iomem *)bd);
3278
3279        /* Normal processing. */
3280        while ((bd_status & T_R) == 0) {
3281                struct sk_buff *skb;
3282
3283                /* BD contains already transmitted buffer.   */
3284                /* Handle the transmitted buffer and release */
3285                /* the BD to be used with the current frame  */
3286
3287                skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
3288                if (!skb)
3289                        break;
3290
3291                dev->stats.tx_packets++;
3292
3293                if (skb_queue_len(&ugeth->rx_recycle) < RX_BD_RING_LEN &&
3294                             skb_recycle_check(skb,
3295                                    ugeth->ug_info->uf_info.max_rx_buf_length +
3296                                    UCC_GETH_RX_DATA_BUF_ALIGNMENT))
3297                        __skb_queue_head(&ugeth->rx_recycle, skb);
3298                else
3299                        dev_kfree_skb(skb);
3300
3301                ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
3302                ugeth->skb_dirtytx[txQ] =
3303                    (ugeth->skb_dirtytx[txQ] +
3304                     1) & TX_RING_MOD_MASK(ugeth->ug_info->bdRingLenTx[txQ]);
3305
3306                /* We freed a buffer, so now we can restart transmission */
3307                if (netif_queue_stopped(dev))
3308                        netif_wake_queue(dev);
3309
3310                /* Advance the confirmation BD pointer */
3311                if (!(bd_status & T_W))
3312                        bd += sizeof(struct qe_bd);
3313                else
3314                        bd = ugeth->p_tx_bd_ring[txQ];
3315                bd_status = in_be32((u32 __iomem *)bd);
3316        }
3317        ugeth->confBd[txQ] = bd;
3318        return 0;
3319}
3320
3321static int ucc_geth_poll(struct napi_struct *napi, int budget)
3322{
3323        struct ucc_geth_private *ugeth = container_of(napi, struct ucc_geth_private, napi);
3324        struct ucc_geth_info *ug_info;
3325        int howmany, i;
3326
3327        ug_info = ugeth->ug_info;
3328
3329        /* Tx event processing */
3330        spin_lock(&ugeth->lock);
3331        for (i = 0; i < ug_info->numQueuesTx; i++)
3332                ucc_geth_tx(ugeth->ndev, i);
3333        spin_unlock(&ugeth->lock);
3334
3335        howmany = 0;
3336        for (i = 0; i < ug_info->numQueuesRx; i++)
3337                howmany += ucc_geth_rx(ugeth, i, budget - howmany);
3338
3339        if (howmany < budget) {
3340                napi_complete(napi);
3341                setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3342        }
3343
3344        return howmany;
3345}
3346
3347static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
3348{
3349        struct net_device *dev = info;
3350        struct ucc_geth_private *ugeth = netdev_priv(dev);
3351        struct ucc_fast_private *uccf;
3352        struct ucc_geth_info *ug_info;
3353        register u32 ucce;
3354        register u32 uccm;
3355
3356        ugeth_vdbg("%s: IN", __func__);
3357
3358        uccf = ugeth->uccf;
3359        ug_info = ugeth->ug_info;
3360
3361        /* read and clear events */
3362        ucce = (u32) in_be32(uccf->p_ucce);
3363        uccm = (u32) in_be32(uccf->p_uccm);
3364        ucce &= uccm;
3365        out_be32(uccf->p_ucce, ucce);
3366
3367        /* check for receive events that require processing */
3368        if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
3369                if (napi_schedule_prep(&ugeth->napi)) {
3370                        uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
3371                        out_be32(uccf->p_uccm, uccm);
3372                        __napi_schedule(&ugeth->napi);
3373                }
3374        }
3375
3376        /* Errors and other events */
3377        if (ucce & UCCE_OTHER) {
3378                if (ucce & UCC_GETH_UCCE_BSY)
3379                        dev->stats.rx_errors++;
3380                if (ucce & UCC_GETH_UCCE_TXE)
3381                        dev->stats.tx_errors++;
3382        }
3383
3384        return IRQ_HANDLED;
3385}
3386
3387#ifdef CONFIG_NET_POLL_CONTROLLER
3388/*
3389 * Polling 'interrupt' - used by things like netconsole to send skbs
3390 * without having to re-enable interrupts. It's not called while
3391 * the interrupt routine is executing.
3392 */
3393static void ucc_netpoll(struct net_device *dev)
3394{
3395        struct ucc_geth_private *ugeth = netdev_priv(dev);
3396        int irq = ugeth->ug_info->uf_info.irq;
3397
3398        disable_irq(irq);
3399        ucc_geth_irq_handler(irq, dev);
3400        enable_irq(irq);
3401}
3402#endif /* CONFIG_NET_POLL_CONTROLLER */
3403
3404static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
3405{
3406        struct ucc_geth_private *ugeth = netdev_priv(dev);
3407        struct sockaddr *addr = p;
3408
3409        if (!is_valid_ether_addr(addr->sa_data))
3410                return -EADDRNOTAVAIL;
3411
3412        memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
3413
3414        /*
3415         * If device is not running, we will set mac addr register
3416         * when opening the device.
3417         */
3418        if (!netif_running(dev))
3419                return 0;
3420
3421        spin_lock_irq(&ugeth->lock);
3422        init_mac_station_addr_regs(dev->dev_addr[0],
3423                                   dev->dev_addr[1],
3424                                   dev->dev_addr[2],
3425                                   dev->dev_addr[3],
3426                                   dev->dev_addr[4],
3427                                   dev->dev_addr[5],
3428                                   &ugeth->ug_regs->macstnaddr1,
3429                                   &ugeth->ug_regs->macstnaddr2);
3430        spin_unlock_irq(&ugeth->lock);
3431
3432        return 0;
3433}
3434
3435static int ucc_geth_init_mac(struct ucc_geth_private *ugeth)
3436{
3437        struct net_device *dev = ugeth->ndev;
3438        int err;
3439
3440        err = ucc_struct_init(ugeth);
3441        if (err) {
3442                if (netif_msg_ifup(ugeth))
3443                        ugeth_err("%s: Cannot configure internal struct, "
3444                                  "aborting.", dev->name);
3445                goto err;
3446        }
3447
3448        err = ucc_geth_startup(ugeth);
3449        if (err) {
3450                if (netif_msg_ifup(ugeth))
3451                        ugeth_err("%s: Cannot configure net device, aborting.",
3452                                  dev->name);
3453                goto err;
3454        }
3455
3456        err = adjust_enet_interface(ugeth);
3457        if (err) {
3458                if (netif_msg_ifup(ugeth))
3459                        ugeth_err("%s: Cannot configure net device, aborting.",
3460                                  dev->name);
3461                goto err;
3462        }
3463
3464        /*       Set MACSTNADDR1, MACSTNADDR2                */
3465        /* For more details see the hardware spec.           */
3466        init_mac_station_addr_regs(dev->dev_addr[0],
3467                                   dev->dev_addr[1],
3468                                   dev->dev_addr[2],
3469                                   dev->dev_addr[3],
3470                                   dev->dev_addr[4],
3471                                   dev->dev_addr[5],
3472                                   &ugeth->ug_regs->macstnaddr1,
3473                                   &ugeth->ug_regs->macstnaddr2);
3474
3475        err = ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3476        if (err) {
3477                if (netif_msg_ifup(ugeth))
3478                        ugeth_err("%s: Cannot enable net device, aborting.", dev->name);
3479                goto err;
3480        }
3481
3482        return 0;
3483err:
3484        ucc_geth_stop(ugeth);
3485        return err;
3486}
3487
3488/* Called when something needs to use the ethernet device */
3489/* Returns 0 for success. */
3490static int ucc_geth_open(struct net_device *dev)
3491{
3492        struct ucc_geth_private *ugeth = netdev_priv(dev);
3493        int err;
3494
3495        ugeth_vdbg("%s: IN", __func__);
3496
3497        /* Test station address */
3498        if (dev->dev_addr[0] & ENET_GROUP_ADDR) {
3499                if (netif_msg_ifup(ugeth))
3500                        ugeth_err("%s: Multicast address used for station "
3501                                  "address - is this what you wanted?",
3502                                  __func__);
3503                return -EINVAL;
3504        }
3505
3506        err = init_phy(dev);
3507        if (err) {
3508                if (netif_msg_ifup(ugeth))
3509                        ugeth_err("%s: Cannot initialize PHY, aborting.",
3510                                  dev->name);
3511                return err;
3512        }
3513
3514        err = ucc_geth_init_mac(ugeth);
3515        if (err) {
3516                if (netif_msg_ifup(ugeth))
3517                        ugeth_err("%s: Cannot initialize MAC, aborting.",
3518                                  dev->name);
3519                goto err;
3520        }
3521
3522        err = request_irq(ugeth->ug_info->uf_info.irq, ucc_geth_irq_handler,
3523                          0, "UCC Geth", dev);
3524        if (err) {
3525                if (netif_msg_ifup(ugeth))
3526                        ugeth_err("%s: Cannot get IRQ for net device, aborting.",
3527                                  dev->name);
3528                goto err;
3529        }
3530
3531        phy_start(ugeth->phydev);
3532        napi_enable(&ugeth->napi);
3533        netif_start_queue(dev);
3534
3535        device_set_wakeup_capable(&dev->dev,
3536                        qe_alive_during_sleep() || ugeth->phydev->irq);
3537        device_set_wakeup_enable(&dev->dev, ugeth->wol_en);
3538
3539        return err;
3540
3541err:
3542        ucc_geth_stop(ugeth);
3543        return err;
3544}
3545
3546/* Stops the kernel queue, and halts the controller */
3547static int ucc_geth_close(struct net_device *dev)
3548{
3549        struct ucc_geth_private *ugeth = netdev_priv(dev);
3550
3551        ugeth_vdbg("%s: IN", __func__);
3552
3553        napi_disable(&ugeth->napi);
3554
3555        cancel_work_sync(&ugeth->timeout_work);
3556        ucc_geth_stop(ugeth);
3557        phy_disconnect(ugeth->phydev);
3558        ugeth->phydev = NULL;
3559
3560        free_irq(ugeth->ug_info->uf_info.irq, ugeth->ndev);
3561
3562        netif_stop_queue(dev);
3563
3564        return 0;
3565}
3566
3567/* Reopen device. This will reset the MAC and PHY. */
3568static void ucc_geth_timeout_work(struct work_struct *work)
3569{
3570        struct ucc_geth_private *ugeth;
3571        struct net_device *dev;
3572
3573        ugeth = container_of(work, struct ucc_geth_private, timeout_work);
3574        dev = ugeth->ndev;
3575
3576        ugeth_vdbg("%s: IN", __func__);
3577
3578        dev->stats.tx_errors++;
3579
3580        ugeth_dump_regs(ugeth);
3581
3582        if (dev->flags & IFF_UP) {
3583                /*
3584                 * Must reset MAC *and* PHY. This is done by reopening
3585                 * the device.
3586                 */
3587                netif_tx_stop_all_queues(dev);
3588                ucc_geth_stop(ugeth);
3589                ucc_geth_init_mac(ugeth);
3590                /* Must start PHY here */
3591                phy_start(ugeth->phydev);
3592                netif_tx_start_all_queues(dev);
3593        }
3594
3595        netif_tx_schedule_all(dev);
3596}
3597
3598/*
3599 * ucc_geth_timeout gets called when a packet has not been
3600 * transmitted after a set amount of time.
3601 */
3602static void ucc_geth_timeout(struct net_device *dev)
3603{
3604        struct ucc_geth_private *ugeth = netdev_priv(dev);
3605
3606        schedule_work(&ugeth->timeout_work);
3607}
3608
3609
3610#ifdef CONFIG_PM
3611
3612static int ucc_geth_suspend(struct platform_device *ofdev, pm_message_t state)
3613{
3614        struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3615        struct ucc_geth_private *ugeth = netdev_priv(ndev);
3616
3617        if (!netif_running(ndev))
3618                return 0;
3619
3620        netif_device_detach(ndev);
3621        napi_disable(&ugeth->napi);
3622
3623        /*
3624         * Disable the controller, otherwise we'll wakeup on any network
3625         * activity.
3626         */
3627        ugeth_disable(ugeth, COMM_DIR_RX_AND_TX);
3628
3629        if (ugeth->wol_en & WAKE_MAGIC) {
3630                setbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3631                setbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3632                ucc_fast_enable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3633        } else if (!(ugeth->wol_en & WAKE_PHY)) {
3634                phy_stop(ugeth->phydev);
3635        }
3636
3637        return 0;
3638}
3639
3640static int ucc_geth_resume(struct platform_device *ofdev)
3641{
3642        struct net_device *ndev = dev_get_drvdata(&ofdev->dev);
3643        struct ucc_geth_private *ugeth = netdev_priv(ndev);
3644        int err;
3645
3646        if (!netif_running(ndev))
3647                return 0;
3648
3649        if (qe_alive_during_sleep()) {
3650                if (ugeth->wol_en & WAKE_MAGIC) {
3651                        ucc_fast_disable(ugeth->uccf, COMM_DIR_RX_AND_TX);
3652                        clrbits32(&ugeth->ug_regs->maccfg2, MACCFG2_MPE);
3653                        clrbits32(ugeth->uccf->p_uccm, UCC_GETH_UCCE_MPD);
3654                }
3655                ugeth_enable(ugeth, COMM_DIR_RX_AND_TX);
3656        } else {
3657                /*
3658                 * Full reinitialization is required if QE shuts down
3659                 * during sleep.
3660                 */
3661                ucc_geth_memclean(ugeth);
3662
3663                err = ucc_geth_init_mac(ugeth);
3664                if (err) {
3665                        ugeth_err("%s: Cannot initialize MAC, aborting.",
3666                                  ndev->name);
3667                        return err;
3668                }
3669        }
3670
3671        ugeth->oldlink = 0;
3672        ugeth->oldspeed = 0;
3673        ugeth->oldduplex = -1;
3674
3675        phy_stop(ugeth->phydev);
3676        phy_start(ugeth->phydev);
3677
3678        napi_enable(&ugeth->napi);
3679        netif_device_attach(ndev);
3680
3681        return 0;
3682}
3683
3684#else
3685#define ucc_geth_suspend NULL
3686#define ucc_geth_resume NULL
3687#endif
3688
3689static phy_interface_t to_phy_interface(const char *phy_connection_type)
3690{
3691        if (strcasecmp(phy_connection_type, "mii") == 0)
3692                return PHY_INTERFACE_MODE_MII;
3693        if (strcasecmp(phy_connection_type, "gmii") == 0)
3694                return PHY_INTERFACE_MODE_GMII;
3695        if (strcasecmp(phy_connection_type, "tbi") == 0)
3696                return PHY_INTERFACE_MODE_TBI;
3697        if (strcasecmp(phy_connection_type, "rmii") == 0)
3698                return PHY_INTERFACE_MODE_RMII;
3699        if (strcasecmp(phy_connection_type, "rgmii") == 0)
3700                return PHY_INTERFACE_MODE_RGMII;
3701        if (strcasecmp(phy_connection_type, "rgmii-id") == 0)
3702                return PHY_INTERFACE_MODE_RGMII_ID;
3703        if (strcasecmp(phy_connection_type, "rgmii-txid") == 0)
3704                return PHY_INTERFACE_MODE_RGMII_TXID;
3705        if (strcasecmp(phy_connection_type, "rgmii-rxid") == 0)
3706                return PHY_INTERFACE_MODE_RGMII_RXID;
3707        if (strcasecmp(phy_connection_type, "rtbi") == 0)
3708                return PHY_INTERFACE_MODE_RTBI;
3709        if (strcasecmp(phy_connection_type, "sgmii") == 0)
3710                return PHY_INTERFACE_MODE_SGMII;
3711
3712        return PHY_INTERFACE_MODE_MII;
3713}
3714
3715static int ucc_geth_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
3716{
3717        struct ucc_geth_private *ugeth = netdev_priv(dev);
3718
3719        if (!netif_running(dev))
3720                return -EINVAL;
3721
3722        if (!ugeth->phydev)
3723                return -ENODEV;
3724
3725        return phy_mii_ioctl(ugeth->phydev, rq, cmd);
3726}
3727
3728static const struct net_device_ops ucc_geth_netdev_ops = {
3729        .ndo_open               = ucc_geth_open,
3730        .ndo_stop               = ucc_geth_close,
3731        .ndo_start_xmit         = ucc_geth_start_xmit,
3732        .ndo_validate_addr      = eth_validate_addr,
3733        .ndo_set_mac_address    = ucc_geth_set_mac_addr,
3734        .ndo_change_mtu         = eth_change_mtu,
3735        .ndo_set_multicast_list = ucc_geth_set_multi,
3736        .ndo_tx_timeout         = ucc_geth_timeout,
3737        .ndo_do_ioctl           = ucc_geth_ioctl,
3738#ifdef CONFIG_NET_POLL_CONTROLLER
3739        .ndo_poll_controller    = ucc_netpoll,
3740#endif
3741};
3742
3743static int ucc_geth_probe(struct platform_device* ofdev, const struct of_device_id *match)
3744{
3745        struct device *device = &ofdev->dev;
3746        struct device_node *np = ofdev->dev.of_node;
3747        struct net_device *dev = NULL;
3748        struct ucc_geth_private *ugeth = NULL;
3749        struct ucc_geth_info *ug_info;
3750        struct resource res;
3751        int err, ucc_num, max_speed = 0;
3752        const unsigned int *prop;
3753        const char *sprop;
3754        const void *mac_addr;
3755        phy_interface_t phy_interface;
3756        static const int enet_to_speed[] = {
3757                SPEED_10, SPEED_10, SPEED_10,
3758                SPEED_100, SPEED_100, SPEED_100,
3759                SPEED_1000, SPEED_1000, SPEED_1000, SPEED_1000,
3760        };
3761        static const phy_interface_t enet_to_phy_interface[] = {
3762                PHY_INTERFACE_MODE_MII, PHY_INTERFACE_MODE_RMII,
3763                PHY_INTERFACE_MODE_RGMII, PHY_INTERFACE_MODE_MII,
3764                PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
3765                PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
3766                PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
3767                PHY_INTERFACE_MODE_SGMII,
3768        };
3769
3770        ugeth_vdbg("%s: IN", __func__);
3771
3772        prop = of_get_property(np, "cell-index", NULL);
3773        if (!prop) {
3774                prop = of_get_property(np, "device-id", NULL);
3775                if (!prop)
3776                        return -ENODEV;
3777        }
3778
3779        ucc_num = *prop - 1;
3780        if ((ucc_num < 0) || (ucc_num > 7))
3781                return -ENODEV;
3782
3783        ug_info = &ugeth_info[ucc_num];
3784        if (ug_info == NULL) {
3785                if (netif_msg_probe(&debug))
3786                        ugeth_err("%s: [%d] Missing additional data!",
3787                                        __func__, ucc_num);
3788                return -ENODEV;
3789        }
3790
3791        ug_info->uf_info.ucc_num = ucc_num;
3792
3793        sprop = of_get_property(np, "rx-clock-name", NULL);
3794        if (sprop) {
3795                ug_info->uf_info.rx_clock = qe_clock_source(sprop);
3796                if ((ug_info->uf_info.rx_clock < QE_CLK_NONE) ||
3797                    (ug_info->uf_info.rx_clock > QE_CLK24)) {
3798                        printk(KERN_ERR
3799                                "ucc_geth: invalid rx-clock-name property\n");
3800                        return -EINVAL;
3801                }
3802        } else {
3803                prop = of_get_property(np, "rx-clock", NULL);
3804                if (!prop) {
3805                        /* If both rx-clock-name and rx-clock are missing,
3806                           we want to tell people to use rx-clock-name. */
3807                        printk(KERN_ERR
3808                                "ucc_geth: missing rx-clock-name property\n");
3809                        return -EINVAL;
3810                }
3811                if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3812                        printk(KERN_ERR
3813                                "ucc_geth: invalid rx-clock propperty\n");
3814                        return -EINVAL;
3815                }
3816                ug_info->uf_info.rx_clock = *prop;
3817        }
3818
3819        sprop = of_get_property(np, "tx-clock-name", NULL);
3820        if (sprop) {
3821                ug_info->uf_info.tx_clock = qe_clock_source(sprop);
3822                if ((ug_info->uf_info.tx_clock < QE_CLK_NONE) ||
3823                    (ug_info->uf_info.tx_clock > QE_CLK24)) {
3824                        printk(KERN_ERR
3825                                "ucc_geth: invalid tx-clock-name property\n");
3826                        return -EINVAL;
3827                }
3828        } else {
3829                prop = of_get_property(np, "tx-clock", NULL);
3830                if (!prop) {
3831                        printk(KERN_ERR
3832                                "ucc_geth: missing tx-clock-name property\n");
3833                        return -EINVAL;
3834                }
3835                if ((*prop < QE_CLK_NONE) || (*prop > QE_CLK24)) {
3836                        printk(KERN_ERR
3837                                "ucc_geth: invalid tx-clock property\n");
3838                        return -EINVAL;
3839                }
3840                ug_info->uf_info.tx_clock = *prop;
3841        }
3842
3843        err = of_address_to_resource(np, 0, &res);
3844        if (err)
3845                return -EINVAL;
3846
3847        ug_info->uf_info.regs = res.start;
3848        ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
3849
3850        ug_info->phy_node = of_parse_phandle(np, "phy-handle", 0);
3851
3852        /* Find the TBI PHY node.  If it's not there, we don't support SGMII */
3853        ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
3854
3855        /* get the phy interface type, or default to MII */
3856        prop = of_get_property(np, "phy-connection-type", NULL);
3857        if (!prop) {
3858                /* handle interface property present in old trees */
3859                prop = of_get_property(ug_info->phy_node, "interface", NULL);
3860                if (prop != NULL) {
3861                        phy_interface = enet_to_phy_interface[*prop];
3862                        max_speed = enet_to_speed[*prop];
3863                } else
3864                        phy_interface = PHY_INTERFACE_MODE_MII;
3865        } else {
3866                phy_interface = to_phy_interface((const char *)prop);
3867        }
3868
3869        /* get speed, or derive from PHY interface */
3870        if (max_speed == 0)
3871                switch (phy_interface) {
3872                case PHY_INTERFACE_MODE_GMII:
3873                case PHY_INTERFACE_MODE_RGMII:
3874                case PHY_INTERFACE_MODE_RGMII_ID:
3875                case PHY_INTERFACE_MODE_RGMII_RXID:
3876                case PHY_INTERFACE_MODE_RGMII_TXID:
3877                case PHY_INTERFACE_MODE_TBI:
3878                case PHY_INTERFACE_MODE_RTBI:
3879                case PHY_INTERFACE_MODE_SGMII:
3880                        max_speed = SPEED_1000;
3881                        break;
3882                default:
3883                        max_speed = SPEED_100;
3884                        break;
3885                }
3886
3887        if (max_speed == SPEED_1000) {
3888                /* configure muram FIFOs for gigabit operation */
3889                ug_info->uf_info.urfs = UCC_GETH_URFS_GIGA_INIT;
3890                ug_info->uf_info.urfet = UCC_GETH_URFET_GIGA_INIT;
3891                ug_info->uf_info.urfset = UCC_GETH_URFSET_GIGA_INIT;
3892                ug_info->uf_info.utfs = UCC_GETH_UTFS_GIGA_INIT;
3893                ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
3894                ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
3895                ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
3896
3897                /* If QE's snum number is 46 which means we need to support
3898                 * 4 UECs at 1000Base-T simultaneously, we need to allocate
3899                 * more Threads to Rx.
3900                 */
3901                if (qe_get_num_of_snums() == 46)
3902                        ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
3903                else
3904                        ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
3905        }
3906
3907        if (netif_msg_probe(&debug))
3908                printk(KERN_INFO "ucc_geth: UCC%1d at 0x%8x (irq = %d)\n",
3909                        ug_info->uf_info.ucc_num + 1, ug_info->uf_info.regs,
3910                        ug_info->uf_info.irq);
3911
3912        /* Create an ethernet device instance */
3913        dev = alloc_etherdev(sizeof(*ugeth));
3914
3915        if (dev == NULL)
3916                return -ENOMEM;
3917
3918        ugeth = netdev_priv(dev);
3919        spin_lock_init(&ugeth->lock);
3920
3921        /* Create CQs for hash tables */
3922        INIT_LIST_HEAD(&ugeth->group_hash_q);
3923        INIT_LIST_HEAD(&ugeth->ind_hash_q);
3924
3925        dev_set_drvdata(device, dev);
3926
3927        /* Set the dev->base_addr to the gfar reg region */
3928        dev->base_addr = (unsigned long)(ug_info->uf_info.regs);
3929
3930        SET_NETDEV_DEV(dev, device);
3931
3932        /* Fill in the dev structure */
3933        uec_set_ethtool_ops(dev);
3934        dev->netdev_ops = &ucc_geth_netdev_ops;
3935        dev->watchdog_timeo = TX_TIMEOUT;
3936        INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
3937        netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
3938        dev->mtu = 1500;
3939
3940        ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
3941        ugeth->phy_interface = phy_interface;
3942        ugeth->max_speed = max_speed;
3943
3944        err = register_netdev(dev);
3945        if (err) {
3946                if (netif_msg_probe(ugeth))
3947                        ugeth_err("%s: Cannot register net device, aborting.",
3948                                  dev->name);
3949                free_netdev(dev);
3950                return err;
3951        }
3952
3953        mac_addr = of_get_mac_address(np);
3954        if (mac_addr)
3955                memcpy(dev->dev_addr, mac_addr, 6);
3956
3957        ugeth->ug_info = ug_info;
3958        ugeth->dev = device;
3959        ugeth->ndev = dev;
3960        ugeth->node = np;
3961
3962        return 0;
3963}
3964
3965static int ucc_geth_remove(struct platform_device* ofdev)
3966{
3967        struct device *device = &ofdev->dev;
3968        struct net_device *dev = dev_get_drvdata(device);
3969        struct ucc_geth_private *ugeth = netdev_priv(dev);
3970
3971        unregister_netdev(dev);
3972        free_netdev(dev);
3973        ucc_geth_memclean(ugeth);
3974        dev_set_drvdata(device, NULL);
3975
3976        return 0;
3977}
3978
3979static struct of_device_id ucc_geth_match[] = {
3980        {
3981                .type = "network",
3982                .compatible = "ucc_geth",
3983        },
3984        {},
3985};
3986
3987MODULE_DEVICE_TABLE(of, ucc_geth_match);
3988
3989static struct of_platform_driver ucc_geth_driver = {
3990        .driver = {
3991                .name = DRV_NAME,
3992                .owner = THIS_MODULE,
3993                .of_match_table = ucc_geth_match,
3994        },
3995        .probe          = ucc_geth_probe,
3996        .remove         = ucc_geth_remove,
3997        .suspend        = ucc_geth_suspend,
3998        .resume         = ucc_geth_resume,
3999};
4000
4001static int __init ucc_geth_init(void)
4002{
4003        int i, ret;
4004
4005        if (netif_msg_drv(&debug))
4006                printk(KERN_INFO "ucc_geth: " DRV_DESC "\n");
4007        for (i = 0; i < 8; i++)
4008                memcpy(&(ugeth_info[i]), &ugeth_primary_info,
4009                       sizeof(ugeth_primary_info));
4010
4011        ret = of_register_platform_driver(&ucc_geth_driver);
4012
4013        return ret;
4014}
4015
4016static void __exit ucc_geth_exit(void)
4017{
4018        of_unregister_platform_driver(&ucc_geth_driver);
4019}
4020
4021module_init(ucc_geth_init);
4022module_exit(ucc_geth_exit);
4023
4024MODULE_AUTHOR("Freescale Semiconductor, Inc");
4025MODULE_DESCRIPTION(DRV_DESC);
4026MODULE_VERSION(DRV_VERSION);
4027MODULE_LICENSE("GPL");
4028