linux/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
<<
>>
Prefs
   1/*
   2 * QLogic qlcnic NIC Driver
   3 * Copyright (c)  2009-2010 QLogic Corporation
   4 *
   5 * See LICENSE.qlcnic for copyright and licensing details.
   6 */
   7
   8#include "qlcnic.h"
   9
  10#include <linux/slab.h>
  11#include <net/ip.h>
  12#include <linux/bitops.h>
  13
  14#define MASK(n) ((1ULL<<(n))-1)
  15#define OCM_WIN_P3P(addr) (addr & 0xffc0000)
  16
  17#define GET_MEM_OFFS_2M(addr) (addr & MASK(18))
  18
  19#define CRB_BLK(off)    ((off >> 20) & 0x3f)
  20#define CRB_SUBBLK(off) ((off >> 16) & 0xf)
  21#define CRB_WINDOW_2M   (0x130060)
  22#define CRB_HI(off)     ((crb_hub_agt[CRB_BLK(off)] << 20) | ((off) & 0xf0000))
  23#define CRB_INDIRECT_2M (0x1e0000UL)
  24
  25
  26#ifndef readq
  27static inline u64 readq(void __iomem *addr)
  28{
  29        return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
  30}
  31#endif
  32
  33#ifndef writeq
  34static inline void writeq(u64 val, void __iomem *addr)
  35{
  36        writel(((u32) (val)), (addr));
  37        writel(((u32) (val >> 32)), (addr + 4));
  38}
  39#endif
  40
  41static const struct crb_128M_2M_block_map
  42crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
  43    {{{0, 0,         0,         0} } },         /* 0: PCI */
  44    {{{1, 0x0100000, 0x0102000, 0x120000},      /* 1: PCIE */
  45          {1, 0x0110000, 0x0120000, 0x130000},
  46          {1, 0x0120000, 0x0122000, 0x124000},
  47          {1, 0x0130000, 0x0132000, 0x126000},
  48          {1, 0x0140000, 0x0142000, 0x128000},
  49          {1, 0x0150000, 0x0152000, 0x12a000},
  50          {1, 0x0160000, 0x0170000, 0x110000},
  51          {1, 0x0170000, 0x0172000, 0x12e000},
  52          {0, 0x0000000, 0x0000000, 0x000000},
  53          {0, 0x0000000, 0x0000000, 0x000000},
  54          {0, 0x0000000, 0x0000000, 0x000000},
  55          {0, 0x0000000, 0x0000000, 0x000000},
  56          {0, 0x0000000, 0x0000000, 0x000000},
  57          {0, 0x0000000, 0x0000000, 0x000000},
  58          {1, 0x01e0000, 0x01e0800, 0x122000},
  59          {0, 0x0000000, 0x0000000, 0x000000} } },
  60        {{{1, 0x0200000, 0x0210000, 0x180000} } },/* 2: MN */
  61    {{{0, 0,         0,         0} } },     /* 3: */
  62    {{{1, 0x0400000, 0x0401000, 0x169000} } },/* 4: P2NR1 */
  63    {{{1, 0x0500000, 0x0510000, 0x140000} } },/* 5: SRE   */
  64    {{{1, 0x0600000, 0x0610000, 0x1c0000} } },/* 6: NIU   */
  65    {{{1, 0x0700000, 0x0704000, 0x1b8000} } },/* 7: QM    */
  66    {{{1, 0x0800000, 0x0802000, 0x170000},  /* 8: SQM0  */
  67      {0, 0x0000000, 0x0000000, 0x000000},
  68      {0, 0x0000000, 0x0000000, 0x000000},
  69      {0, 0x0000000, 0x0000000, 0x000000},
  70      {0, 0x0000000, 0x0000000, 0x000000},
  71      {0, 0x0000000, 0x0000000, 0x000000},
  72      {0, 0x0000000, 0x0000000, 0x000000},
  73      {0, 0x0000000, 0x0000000, 0x000000},
  74      {0, 0x0000000, 0x0000000, 0x000000},
  75      {0, 0x0000000, 0x0000000, 0x000000},
  76      {0, 0x0000000, 0x0000000, 0x000000},
  77      {0, 0x0000000, 0x0000000, 0x000000},
  78      {0, 0x0000000, 0x0000000, 0x000000},
  79      {0, 0x0000000, 0x0000000, 0x000000},
  80      {0, 0x0000000, 0x0000000, 0x000000},
  81      {1, 0x08f0000, 0x08f2000, 0x172000} } },
  82    {{{1, 0x0900000, 0x0902000, 0x174000},      /* 9: SQM1*/
  83      {0, 0x0000000, 0x0000000, 0x000000},
  84      {0, 0x0000000, 0x0000000, 0x000000},
  85      {0, 0x0000000, 0x0000000, 0x000000},
  86      {0, 0x0000000, 0x0000000, 0x000000},
  87      {0, 0x0000000, 0x0000000, 0x000000},
  88      {0, 0x0000000, 0x0000000, 0x000000},
  89      {0, 0x0000000, 0x0000000, 0x000000},
  90      {0, 0x0000000, 0x0000000, 0x000000},
  91      {0, 0x0000000, 0x0000000, 0x000000},
  92      {0, 0x0000000, 0x0000000, 0x000000},
  93      {0, 0x0000000, 0x0000000, 0x000000},
  94      {0, 0x0000000, 0x0000000, 0x000000},
  95      {0, 0x0000000, 0x0000000, 0x000000},
  96      {0, 0x0000000, 0x0000000, 0x000000},
  97      {1, 0x09f0000, 0x09f2000, 0x176000} } },
  98    {{{0, 0x0a00000, 0x0a02000, 0x178000},      /* 10: SQM2*/
  99      {0, 0x0000000, 0x0000000, 0x000000},
 100      {0, 0x0000000, 0x0000000, 0x000000},
 101      {0, 0x0000000, 0x0000000, 0x000000},
 102      {0, 0x0000000, 0x0000000, 0x000000},
 103      {0, 0x0000000, 0x0000000, 0x000000},
 104      {0, 0x0000000, 0x0000000, 0x000000},
 105      {0, 0x0000000, 0x0000000, 0x000000},
 106      {0, 0x0000000, 0x0000000, 0x000000},
 107      {0, 0x0000000, 0x0000000, 0x000000},
 108      {0, 0x0000000, 0x0000000, 0x000000},
 109      {0, 0x0000000, 0x0000000, 0x000000},
 110      {0, 0x0000000, 0x0000000, 0x000000},
 111      {0, 0x0000000, 0x0000000, 0x000000},
 112      {0, 0x0000000, 0x0000000, 0x000000},
 113      {1, 0x0af0000, 0x0af2000, 0x17a000} } },
 114    {{{0, 0x0b00000, 0x0b02000, 0x17c000},      /* 11: SQM3*/
 115      {0, 0x0000000, 0x0000000, 0x000000},
 116      {0, 0x0000000, 0x0000000, 0x000000},
 117      {0, 0x0000000, 0x0000000, 0x000000},
 118      {0, 0x0000000, 0x0000000, 0x000000},
 119      {0, 0x0000000, 0x0000000, 0x000000},
 120      {0, 0x0000000, 0x0000000, 0x000000},
 121      {0, 0x0000000, 0x0000000, 0x000000},
 122      {0, 0x0000000, 0x0000000, 0x000000},
 123      {0, 0x0000000, 0x0000000, 0x000000},
 124      {0, 0x0000000, 0x0000000, 0x000000},
 125      {0, 0x0000000, 0x0000000, 0x000000},
 126      {0, 0x0000000, 0x0000000, 0x000000},
 127      {0, 0x0000000, 0x0000000, 0x000000},
 128      {0, 0x0000000, 0x0000000, 0x000000},
 129      {1, 0x0bf0000, 0x0bf2000, 0x17e000} } },
 130        {{{1, 0x0c00000, 0x0c04000, 0x1d4000} } },/* 12: I2Q */
 131        {{{1, 0x0d00000, 0x0d04000, 0x1a4000} } },/* 13: TMR */
 132        {{{1, 0x0e00000, 0x0e04000, 0x1a0000} } },/* 14: ROMUSB */
 133        {{{1, 0x0f00000, 0x0f01000, 0x164000} } },/* 15: PEG4 */
 134        {{{0, 0x1000000, 0x1004000, 0x1a8000} } },/* 16: XDMA */
 135        {{{1, 0x1100000, 0x1101000, 0x160000} } },/* 17: PEG0 */
 136        {{{1, 0x1200000, 0x1201000, 0x161000} } },/* 18: PEG1 */
 137        {{{1, 0x1300000, 0x1301000, 0x162000} } },/* 19: PEG2 */
 138        {{{1, 0x1400000, 0x1401000, 0x163000} } },/* 20: PEG3 */
 139        {{{1, 0x1500000, 0x1501000, 0x165000} } },/* 21: P2ND */
 140        {{{1, 0x1600000, 0x1601000, 0x166000} } },/* 22: P2NI */
 141        {{{0, 0,         0,         0} } },     /* 23: */
 142        {{{0, 0,         0,         0} } },     /* 24: */
 143        {{{0, 0,         0,         0} } },     /* 25: */
 144        {{{0, 0,         0,         0} } },     /* 26: */
 145        {{{0, 0,         0,         0} } },     /* 27: */
 146        {{{0, 0,         0,         0} } },     /* 28: */
 147        {{{1, 0x1d00000, 0x1d10000, 0x190000} } },/* 29: MS */
 148    {{{1, 0x1e00000, 0x1e01000, 0x16a000} } },/* 30: P2NR2 */
 149    {{{1, 0x1f00000, 0x1f10000, 0x150000} } },/* 31: EPG */
 150        {{{0} } },                              /* 32: PCI */
 151        {{{1, 0x2100000, 0x2102000, 0x120000},  /* 33: PCIE */
 152          {1, 0x2110000, 0x2120000, 0x130000},
 153          {1, 0x2120000, 0x2122000, 0x124000},
 154          {1, 0x2130000, 0x2132000, 0x126000},
 155          {1, 0x2140000, 0x2142000, 0x128000},
 156          {1, 0x2150000, 0x2152000, 0x12a000},
 157          {1, 0x2160000, 0x2170000, 0x110000},
 158          {1, 0x2170000, 0x2172000, 0x12e000},
 159          {0, 0x0000000, 0x0000000, 0x000000},
 160          {0, 0x0000000, 0x0000000, 0x000000},
 161          {0, 0x0000000, 0x0000000, 0x000000},
 162          {0, 0x0000000, 0x0000000, 0x000000},
 163          {0, 0x0000000, 0x0000000, 0x000000},
 164          {0, 0x0000000, 0x0000000, 0x000000},
 165          {0, 0x0000000, 0x0000000, 0x000000},
 166          {0, 0x0000000, 0x0000000, 0x000000} } },
 167        {{{1, 0x2200000, 0x2204000, 0x1b0000} } },/* 34: CAM */
 168        {{{0} } },                              /* 35: */
 169        {{{0} } },                              /* 36: */
 170        {{{0} } },                              /* 37: */
 171        {{{0} } },                              /* 38: */
 172        {{{0} } },                              /* 39: */
 173        {{{1, 0x2800000, 0x2804000, 0x1a4000} } },/* 40: TMR */
 174        {{{1, 0x2900000, 0x2901000, 0x16b000} } },/* 41: P2NR3 */
 175        {{{1, 0x2a00000, 0x2a00400, 0x1ac400} } },/* 42: RPMX1 */
 176        {{{1, 0x2b00000, 0x2b00400, 0x1ac800} } },/* 43: RPMX2 */
 177        {{{1, 0x2c00000, 0x2c00400, 0x1acc00} } },/* 44: RPMX3 */
 178        {{{1, 0x2d00000, 0x2d00400, 0x1ad000} } },/* 45: RPMX4 */
 179        {{{1, 0x2e00000, 0x2e00400, 0x1ad400} } },/* 46: RPMX5 */
 180        {{{1, 0x2f00000, 0x2f00400, 0x1ad800} } },/* 47: RPMX6 */
 181        {{{1, 0x3000000, 0x3000400, 0x1adc00} } },/* 48: RPMX7 */
 182        {{{0, 0x3100000, 0x3104000, 0x1a8000} } },/* 49: XDMA */
 183        {{{1, 0x3200000, 0x3204000, 0x1d4000} } },/* 50: I2Q */
 184        {{{1, 0x3300000, 0x3304000, 0x1a0000} } },/* 51: ROMUSB */
 185        {{{0} } },                              /* 52: */
 186        {{{1, 0x3500000, 0x3500400, 0x1ac000} } },/* 53: RPMX0 */
 187        {{{1, 0x3600000, 0x3600400, 0x1ae000} } },/* 54: RPMX8 */
 188        {{{1, 0x3700000, 0x3700400, 0x1ae400} } },/* 55: RPMX9 */
 189        {{{1, 0x3800000, 0x3804000, 0x1d0000} } },/* 56: OCM0 */
 190        {{{1, 0x3900000, 0x3904000, 0x1b4000} } },/* 57: CRYPTO */
 191        {{{1, 0x3a00000, 0x3a04000, 0x1d8000} } },/* 58: SMB */
 192        {{{0} } },                              /* 59: I2C0 */
 193        {{{0} } },                              /* 60: I2C1 */
 194        {{{1, 0x3d00000, 0x3d04000, 0x1d8000} } },/* 61: LPC */
 195        {{{1, 0x3e00000, 0x3e01000, 0x167000} } },/* 62: P2NC */
 196        {{{1, 0x3f00000, 0x3f01000, 0x168000} } }       /* 63: P2NR0 */
 197};
 198
 199/*
 200 * top 12 bits of crb internal address (hub, agent)
 201 */
 202static const unsigned crb_hub_agt[64] = {
 203        0,
 204        QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
 205        QLCNIC_HW_CRB_HUB_AGT_ADR_MN,
 206        QLCNIC_HW_CRB_HUB_AGT_ADR_MS,
 207        0,
 208        QLCNIC_HW_CRB_HUB_AGT_ADR_SRE,
 209        QLCNIC_HW_CRB_HUB_AGT_ADR_NIU,
 210        QLCNIC_HW_CRB_HUB_AGT_ADR_QMN,
 211        QLCNIC_HW_CRB_HUB_AGT_ADR_SQN0,
 212        QLCNIC_HW_CRB_HUB_AGT_ADR_SQN1,
 213        QLCNIC_HW_CRB_HUB_AGT_ADR_SQN2,
 214        QLCNIC_HW_CRB_HUB_AGT_ADR_SQN3,
 215        QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
 216        QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
 217        QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
 218        QLCNIC_HW_CRB_HUB_AGT_ADR_PGN4,
 219        QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
 220        QLCNIC_HW_CRB_HUB_AGT_ADR_PGN0,
 221        QLCNIC_HW_CRB_HUB_AGT_ADR_PGN1,
 222        QLCNIC_HW_CRB_HUB_AGT_ADR_PGN2,
 223        QLCNIC_HW_CRB_HUB_AGT_ADR_PGN3,
 224        QLCNIC_HW_CRB_HUB_AGT_ADR_PGND,
 225        QLCNIC_HW_CRB_HUB_AGT_ADR_PGNI,
 226        QLCNIC_HW_CRB_HUB_AGT_ADR_PGS0,
 227        QLCNIC_HW_CRB_HUB_AGT_ADR_PGS1,
 228        QLCNIC_HW_CRB_HUB_AGT_ADR_PGS2,
 229        QLCNIC_HW_CRB_HUB_AGT_ADR_PGS3,
 230        0,
 231        QLCNIC_HW_CRB_HUB_AGT_ADR_PGSI,
 232        QLCNIC_HW_CRB_HUB_AGT_ADR_SN,
 233        0,
 234        QLCNIC_HW_CRB_HUB_AGT_ADR_EG,
 235        0,
 236        QLCNIC_HW_CRB_HUB_AGT_ADR_PS,
 237        QLCNIC_HW_CRB_HUB_AGT_ADR_CAM,
 238        0,
 239        0,
 240        0,
 241        0,
 242        0,
 243        QLCNIC_HW_CRB_HUB_AGT_ADR_TIMR,
 244        0,
 245        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX1,
 246        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX2,
 247        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX3,
 248        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX4,
 249        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX5,
 250        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX6,
 251        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX7,
 252        QLCNIC_HW_CRB_HUB_AGT_ADR_XDMA,
 253        QLCNIC_HW_CRB_HUB_AGT_ADR_I2Q,
 254        QLCNIC_HW_CRB_HUB_AGT_ADR_ROMUSB,
 255        0,
 256        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX0,
 257        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX8,
 258        QLCNIC_HW_CRB_HUB_AGT_ADR_RPMX9,
 259        QLCNIC_HW_CRB_HUB_AGT_ADR_OCM0,
 260        0,
 261        QLCNIC_HW_CRB_HUB_AGT_ADR_SMB,
 262        QLCNIC_HW_CRB_HUB_AGT_ADR_I2C0,
 263        QLCNIC_HW_CRB_HUB_AGT_ADR_I2C1,
 264        0,
 265        QLCNIC_HW_CRB_HUB_AGT_ADR_PGNC,
 266        0,
 267};
 268
 269/*  PCI Windowing for DDR regions.  */
 270
 271#define QLCNIC_PCIE_SEM_TIMEOUT 10000
 272
 273int
 274qlcnic_pcie_sem_lock(struct qlcnic_adapter *adapter, int sem, u32 id_reg)
 275{
 276        int done = 0, timeout = 0;
 277
 278        while (!done) {
 279                done = QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_LOCK(sem)));
 280                if (done == 1)
 281                        break;
 282                if (++timeout >= QLCNIC_PCIE_SEM_TIMEOUT) {
 283                        dev_err(&adapter->pdev->dev,
 284                                "Failed to acquire sem=%d lock; holdby=%d\n",
 285                                sem, id_reg ? QLCRD32(adapter, id_reg) : -1);
 286                        return -EIO;
 287                }
 288                msleep(1);
 289        }
 290
 291        if (id_reg)
 292                QLCWR32(adapter, id_reg, adapter->portnum);
 293
 294        return 0;
 295}
 296
 297void
 298qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
 299{
 300        QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 301}
 302
 303static int
 304qlcnic_send_cmd_descs(struct qlcnic_adapter *adapter,
 305                struct cmd_desc_type0 *cmd_desc_arr, int nr_desc)
 306{
 307        u32 i, producer, consumer;
 308        struct qlcnic_cmd_buffer *pbuf;
 309        struct cmd_desc_type0 *cmd_desc;
 310        struct qlcnic_host_tx_ring *tx_ring;
 311
 312        i = 0;
 313
 314        if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 315                return -EIO;
 316
 317        tx_ring = adapter->tx_ring;
 318        __netif_tx_lock_bh(tx_ring->txq);
 319
 320        producer = tx_ring->producer;
 321        consumer = tx_ring->sw_consumer;
 322
 323        if (nr_desc >= qlcnic_tx_avail(tx_ring)) {
 324                netif_tx_stop_queue(tx_ring->txq);
 325                smp_mb();
 326                if (qlcnic_tx_avail(tx_ring) > nr_desc) {
 327                        if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
 328                                netif_tx_wake_queue(tx_ring->txq);
 329                } else {
 330                        adapter->stats.xmit_off++;
 331                        __netif_tx_unlock_bh(tx_ring->txq);
 332                        return -EBUSY;
 333                }
 334        }
 335
 336        do {
 337                cmd_desc = &cmd_desc_arr[i];
 338
 339                pbuf = &tx_ring->cmd_buf_arr[producer];
 340                pbuf->skb = NULL;
 341                pbuf->frag_count = 0;
 342
 343                memcpy(&tx_ring->desc_head[producer],
 344                        &cmd_desc_arr[i], sizeof(struct cmd_desc_type0));
 345
 346                producer = get_next_index(producer, tx_ring->num_desc);
 347                i++;
 348
 349        } while (i != nr_desc);
 350
 351        tx_ring->producer = producer;
 352
 353        qlcnic_update_cmd_producer(adapter, tx_ring);
 354
 355        __netif_tx_unlock_bh(tx_ring->txq);
 356
 357        return 0;
 358}
 359
 360static int
 361qlcnic_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
 362                                __le16 vlan_id, unsigned op)
 363{
 364        struct qlcnic_nic_req req;
 365        struct qlcnic_mac_req *mac_req;
 366        struct qlcnic_vlan_req *vlan_req;
 367        u64 word;
 368
 369        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 370        req.qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
 371
 372        word = QLCNIC_MAC_EVENT | ((u64)adapter->portnum << 16);
 373        req.req_hdr = cpu_to_le64(word);
 374
 375        mac_req = (struct qlcnic_mac_req *)&req.words[0];
 376        mac_req->op = op;
 377        memcpy(mac_req->mac_addr, addr, 6);
 378
 379        vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
 380        vlan_req->vlan_id = vlan_id;
 381
 382        return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 383}
 384
 385static int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr)
 386{
 387        struct list_head *head;
 388        struct qlcnic_mac_list_s *cur;
 389
 390        /* look up if already exists */
 391        list_for_each(head, &adapter->mac_list) {
 392                cur = list_entry(head, struct qlcnic_mac_list_s, list);
 393                if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0)
 394                        return 0;
 395        }
 396
 397        cur = kzalloc(sizeof(struct qlcnic_mac_list_s), GFP_ATOMIC);
 398        if (cur == NULL) {
 399                dev_err(&adapter->netdev->dev,
 400                        "failed to add mac address filter\n");
 401                return -ENOMEM;
 402        }
 403        memcpy(cur->mac_addr, addr, ETH_ALEN);
 404
 405        if (qlcnic_sre_macaddr_change(adapter,
 406                                cur->mac_addr, 0, QLCNIC_MAC_ADD)) {
 407                kfree(cur);
 408                return -EIO;
 409        }
 410
 411        list_add_tail(&cur->list, &adapter->mac_list);
 412        return 0;
 413}
 414
 415void qlcnic_set_multi(struct net_device *netdev)
 416{
 417        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 418        struct netdev_hw_addr *ha;
 419        static const u8 bcast_addr[ETH_ALEN] = {
 420                0xff, 0xff, 0xff, 0xff, 0xff, 0xff
 421        };
 422        u32 mode = VPORT_MISS_MODE_DROP;
 423
 424        if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 425                return;
 426
 427        qlcnic_nic_add_mac(adapter, adapter->mac_addr);
 428        qlcnic_nic_add_mac(adapter, bcast_addr);
 429
 430        if (netdev->flags & IFF_PROMISC) {
 431                if (!(adapter->flags & QLCNIC_PROMISC_DISABLED))
 432                        mode = VPORT_MISS_MODE_ACCEPT_ALL;
 433                goto send_fw_cmd;
 434        }
 435
 436        if ((netdev->flags & IFF_ALLMULTI) ||
 437            (netdev_mc_count(netdev) > adapter->max_mc_count)) {
 438                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 439                goto send_fw_cmd;
 440        }
 441
 442        if (!netdev_mc_empty(netdev)) {
 443                netdev_for_each_mc_addr(ha, netdev) {
 444                        qlcnic_nic_add_mac(adapter, ha->addr);
 445                }
 446        }
 447
 448send_fw_cmd:
 449        if (mode == VPORT_MISS_MODE_ACCEPT_ALL) {
 450                qlcnic_alloc_lb_filters_mem(adapter);
 451                adapter->mac_learn = 1;
 452        } else {
 453                adapter->mac_learn = 0;
 454        }
 455
 456        qlcnic_nic_set_promisc(adapter, mode);
 457}
 458
 459int qlcnic_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
 460{
 461        struct qlcnic_nic_req req;
 462        u64 word;
 463
 464        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 465
 466        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 467
 468        word = QLCNIC_H2C_OPCODE_SET_MAC_RECEIVE_MODE |
 469                        ((u64)adapter->portnum << 16);
 470        req.req_hdr = cpu_to_le64(word);
 471
 472        req.words[0] = cpu_to_le64(mode);
 473
 474        return qlcnic_send_cmd_descs(adapter,
 475                                (struct cmd_desc_type0 *)&req, 1);
 476}
 477
 478void qlcnic_free_mac_list(struct qlcnic_adapter *adapter)
 479{
 480        struct qlcnic_mac_list_s *cur;
 481        struct list_head *head = &adapter->mac_list;
 482
 483        while (!list_empty(head)) {
 484                cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
 485                qlcnic_sre_macaddr_change(adapter,
 486                                cur->mac_addr, 0, QLCNIC_MAC_DEL);
 487                list_del(&cur->list);
 488                kfree(cur);
 489        }
 490}
 491
 492void qlcnic_prune_lb_filters(struct qlcnic_adapter *adapter)
 493{
 494        struct qlcnic_filter *tmp_fil;
 495        struct hlist_node *tmp_hnode, *n;
 496        struct hlist_head *head;
 497        int i;
 498
 499        for (i = 0; i < adapter->fhash.fmax; i++) {
 500                head = &(adapter->fhash.fhead[i]);
 501
 502                hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode)
 503                {
 504                        if (jiffies >
 505                                (QLCNIC_FILTER_AGE * HZ + tmp_fil->ftime)) {
 506                                qlcnic_sre_macaddr_change(adapter,
 507                                        tmp_fil->faddr, tmp_fil->vlan_id,
 508                                        tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
 509                                        QLCNIC_MAC_DEL);
 510                                spin_lock_bh(&adapter->mac_learn_lock);
 511                                adapter->fhash.fnum--;
 512                                hlist_del(&tmp_fil->fnode);
 513                                spin_unlock_bh(&adapter->mac_learn_lock);
 514                                kfree(tmp_fil);
 515                        }
 516                }
 517        }
 518}
 519
 520void qlcnic_delete_lb_filters(struct qlcnic_adapter *adapter)
 521{
 522        struct qlcnic_filter *tmp_fil;
 523        struct hlist_node *tmp_hnode, *n;
 524        struct hlist_head *head;
 525        int i;
 526
 527        for (i = 0; i < adapter->fhash.fmax; i++) {
 528                head = &(adapter->fhash.fhead[i]);
 529
 530                hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
 531                        qlcnic_sre_macaddr_change(adapter, tmp_fil->faddr,
 532                                tmp_fil->vlan_id, tmp_fil->vlan_id ?
 533                                QLCNIC_MAC_VLAN_DEL :  QLCNIC_MAC_DEL);
 534                        spin_lock_bh(&adapter->mac_learn_lock);
 535                        adapter->fhash.fnum--;
 536                        hlist_del(&tmp_fil->fnode);
 537                        spin_unlock_bh(&adapter->mac_learn_lock);
 538                        kfree(tmp_fil);
 539                }
 540        }
 541}
 542
 543int qlcnic_set_fw_loopback(struct qlcnic_adapter *adapter, u8 flag)
 544{
 545        struct qlcnic_nic_req req;
 546        int rv;
 547
 548        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 549
 550        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 551        req.req_hdr = cpu_to_le64(QLCNIC_H2C_OPCODE_CONFIG_LOOPBACK |
 552                ((u64) adapter->portnum << 16) | ((u64) 0x1 << 32));
 553
 554        req.words[0] = cpu_to_le64(flag);
 555
 556        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 557        if (rv != 0)
 558                dev_err(&adapter->pdev->dev, "%sting loopback mode failed\n",
 559                                flag ? "Set" : "Reset");
 560        return rv;
 561}
 562
 563int qlcnic_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
 564{
 565        if (qlcnic_set_fw_loopback(adapter, mode))
 566                return -EIO;
 567
 568        if (qlcnic_nic_set_promisc(adapter, VPORT_MISS_MODE_ACCEPT_ALL)) {
 569                qlcnic_set_fw_loopback(adapter, 0);
 570                return -EIO;
 571        }
 572
 573        msleep(1000);
 574        return 0;
 575}
 576
 577void qlcnic_clear_lb_mode(struct qlcnic_adapter *adapter)
 578{
 579        int mode = VPORT_MISS_MODE_DROP;
 580        struct net_device *netdev = adapter->netdev;
 581
 582        qlcnic_set_fw_loopback(adapter, 0);
 583
 584        if (netdev->flags & IFF_PROMISC)
 585                mode = VPORT_MISS_MODE_ACCEPT_ALL;
 586        else if (netdev->flags & IFF_ALLMULTI)
 587                mode = VPORT_MISS_MODE_ACCEPT_MULTI;
 588
 589        qlcnic_nic_set_promisc(adapter, mode);
 590        msleep(1000);
 591}
 592
 593/*
 594 * Send the interrupt coalescing parameter set by ethtool to the card.
 595 */
 596int qlcnic_config_intr_coalesce(struct qlcnic_adapter *adapter)
 597{
 598        struct qlcnic_nic_req req;
 599        int rv;
 600
 601        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 602
 603        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 604
 605        req.req_hdr = cpu_to_le64(QLCNIC_CONFIG_INTR_COALESCE |
 606                ((u64) adapter->portnum << 16));
 607
 608        req.words[0] = cpu_to_le64(((u64) adapter->ahw->coal.flag) << 32);
 609        req.words[2] = cpu_to_le64(adapter->ahw->coal.rx_packets |
 610                        ((u64) adapter->ahw->coal.rx_time_us) << 16);
 611        req.words[5] = cpu_to_le64(adapter->ahw->coal.timer_out |
 612                        ((u64) adapter->ahw->coal.type) << 32 |
 613                        ((u64) adapter->ahw->coal.sts_ring_mask) << 40);
 614        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 615        if (rv != 0)
 616                dev_err(&adapter->netdev->dev,
 617                        "Could not send interrupt coalescing parameters\n");
 618        return rv;
 619}
 620
 621int qlcnic_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
 622{
 623        struct qlcnic_nic_req req;
 624        u64 word;
 625        int rv;
 626
 627        if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 628                return 0;
 629
 630        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 631
 632        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 633
 634        word = QLCNIC_H2C_OPCODE_CONFIG_HW_LRO | ((u64)adapter->portnum << 16);
 635        req.req_hdr = cpu_to_le64(word);
 636
 637        req.words[0] = cpu_to_le64(enable);
 638
 639        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 640        if (rv != 0)
 641                dev_err(&adapter->netdev->dev,
 642                        "Could not send configure hw lro request\n");
 643
 644        return rv;
 645}
 646
 647int qlcnic_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
 648{
 649        struct qlcnic_nic_req req;
 650        u64 word;
 651        int rv;
 652
 653        if (!!(adapter->flags & QLCNIC_BRIDGE_ENABLED) == enable)
 654                return 0;
 655
 656        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 657
 658        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 659
 660        word = QLCNIC_H2C_OPCODE_CONFIG_BRIDGING |
 661                ((u64)adapter->portnum << 16);
 662        req.req_hdr = cpu_to_le64(word);
 663
 664        req.words[0] = cpu_to_le64(enable);
 665
 666        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 667        if (rv != 0)
 668                dev_err(&adapter->netdev->dev,
 669                        "Could not send configure bridge mode request\n");
 670
 671        adapter->flags ^= QLCNIC_BRIDGE_ENABLED;
 672
 673        return rv;
 674}
 675
 676
 677#define RSS_HASHTYPE_IP_TCP     0x3
 678
 679int qlcnic_config_rss(struct qlcnic_adapter *adapter, int enable)
 680{
 681        struct qlcnic_nic_req req;
 682        u64 word;
 683        int i, rv;
 684
 685        static const u64 key[] = {
 686                0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
 687                0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
 688                0x255b0ec26d5a56daULL
 689        };
 690
 691        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 692        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 693
 694        word = QLCNIC_H2C_OPCODE_CONFIG_RSS | ((u64)adapter->portnum << 16);
 695        req.req_hdr = cpu_to_le64(word);
 696
 697        /*
 698         * RSS request:
 699         * bits 3-0: hash_method
 700         *      5-4: hash_type_ipv4
 701         *      7-6: hash_type_ipv6
 702         *        8: enable
 703         *        9: use indirection table
 704         *    47-10: reserved
 705         *    63-48: indirection table mask
 706         */
 707        word =  ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
 708                ((u64)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
 709                ((u64)(enable & 0x1) << 8) |
 710                ((0x7ULL) << 48);
 711        req.words[0] = cpu_to_le64(word);
 712        for (i = 0; i < 5; i++)
 713                req.words[i+1] = cpu_to_le64(key[i]);
 714
 715        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 716        if (rv != 0)
 717                dev_err(&adapter->netdev->dev, "could not configure RSS\n");
 718
 719        return rv;
 720}
 721
 722int qlcnic_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip, int cmd)
 723{
 724        struct qlcnic_nic_req req;
 725        struct qlcnic_ipaddr *ipa;
 726        u64 word;
 727        int rv;
 728
 729        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 730        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 731
 732        word = QLCNIC_H2C_OPCODE_CONFIG_IPADDR | ((u64)adapter->portnum << 16);
 733        req.req_hdr = cpu_to_le64(word);
 734
 735        req.words[0] = cpu_to_le64(cmd);
 736        ipa = (struct qlcnic_ipaddr *)&req.words[1];
 737        ipa->ipv4 = ip;
 738
 739        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 740        if (rv != 0)
 741                dev_err(&adapter->netdev->dev,
 742                                "could not notify %s IP 0x%x reuqest\n",
 743                                (cmd == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
 744
 745        return rv;
 746}
 747
 748int qlcnic_linkevent_request(struct qlcnic_adapter *adapter, int enable)
 749{
 750        struct qlcnic_nic_req req;
 751        u64 word;
 752        int rv;
 753
 754        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 755        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 756
 757        word = QLCNIC_H2C_OPCODE_GET_LINKEVENT | ((u64)adapter->portnum << 16);
 758        req.req_hdr = cpu_to_le64(word);
 759        req.words[0] = cpu_to_le64(enable | (enable << 8));
 760
 761        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 762        if (rv != 0)
 763                dev_err(&adapter->netdev->dev,
 764                                "could not configure link notification\n");
 765
 766        return rv;
 767}
 768
 769int qlcnic_send_lro_cleanup(struct qlcnic_adapter *adapter)
 770{
 771        struct qlcnic_nic_req req;
 772        u64 word;
 773        int rv;
 774
 775        if (!test_bit(__QLCNIC_FW_ATTACHED, &adapter->state))
 776                return 0;
 777
 778        memset(&req, 0, sizeof(struct qlcnic_nic_req));
 779        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
 780
 781        word = QLCNIC_H2C_OPCODE_LRO_REQUEST |
 782                ((u64)adapter->portnum << 16) |
 783                ((u64)QLCNIC_LRO_REQUEST_CLEANUP << 56) ;
 784
 785        req.req_hdr = cpu_to_le64(word);
 786
 787        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 788        if (rv != 0)
 789                dev_err(&adapter->netdev->dev,
 790                                 "could not cleanup lro flows\n");
 791
 792        return rv;
 793}
 794
 795/*
 796 * qlcnic_change_mtu - Change the Maximum Transfer Unit
 797 * @returns 0 on success, negative on failure
 798 */
 799
 800int qlcnic_change_mtu(struct net_device *netdev, int mtu)
 801{
 802        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 803        int rc = 0;
 804
 805        if (mtu < P3P_MIN_MTU || mtu > P3P_MAX_MTU) {
 806                dev_err(&adapter->netdev->dev, "%d bytes < mtu < %d bytes"
 807                        " not supported\n", P3P_MAX_MTU, P3P_MIN_MTU);
 808                return -EINVAL;
 809        }
 810
 811        rc = qlcnic_fw_cmd_set_mtu(adapter, mtu);
 812
 813        if (!rc)
 814                netdev->mtu = mtu;
 815
 816        return rc;
 817}
 818
 819
 820netdev_features_t qlcnic_fix_features(struct net_device *netdev,
 821        netdev_features_t features)
 822{
 823        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 824
 825        if ((adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
 826                netdev_features_t changed = features ^ netdev->features;
 827                features ^= changed & (NETIF_F_ALL_CSUM | NETIF_F_RXCSUM);
 828        }
 829
 830        if (!(features & NETIF_F_RXCSUM))
 831                features &= ~NETIF_F_LRO;
 832
 833        return features;
 834}
 835
 836
 837int qlcnic_set_features(struct net_device *netdev, netdev_features_t features)
 838{
 839        struct qlcnic_adapter *adapter = netdev_priv(netdev);
 840        netdev_features_t changed = netdev->features ^ features;
 841        int hw_lro = (features & NETIF_F_LRO) ? QLCNIC_LRO_ENABLED : 0;
 842
 843        if (!(changed & NETIF_F_LRO))
 844                return 0;
 845
 846        netdev->features = features ^ NETIF_F_LRO;
 847
 848        if (qlcnic_config_hw_lro(adapter, hw_lro))
 849                return -EIO;
 850
 851        if ((hw_lro == 0) && qlcnic_send_lro_cleanup(adapter))
 852                return -EIO;
 853
 854        return 0;
 855}
 856
 857/*
 858 * Changes the CRB window to the specified window.
 859 */
 860 /* Returns < 0 if off is not valid,
 861 *       1 if window access is needed. 'off' is set to offset from
 862 *         CRB space in 128M pci map
 863 *       0 if no window access is needed. 'off' is set to 2M addr
 864 * In: 'off' is offset from base in 128M pci map
 865 */
 866static int
 867qlcnic_pci_get_crb_addr_2M(struct qlcnic_adapter *adapter,
 868                ulong off, void __iomem **addr)
 869{
 870        const struct crb_128M_2M_sub_block_map *m;
 871
 872        if ((off >= QLCNIC_CRB_MAX) || (off < QLCNIC_PCI_CRBSPACE))
 873                return -EINVAL;
 874
 875        off -= QLCNIC_PCI_CRBSPACE;
 876
 877        /*
 878         * Try direct map
 879         */
 880        m = &crb_128M_2M_map[CRB_BLK(off)].sub_block[CRB_SUBBLK(off)];
 881
 882        if (m->valid && (m->start_128M <= off) && (m->end_128M > off)) {
 883                *addr = adapter->ahw->pci_base0 + m->start_2M +
 884                        (off - m->start_128M);
 885                return 0;
 886        }
 887
 888        /*
 889         * Not in direct map, use crb window
 890         */
 891        *addr = adapter->ahw->pci_base0 + CRB_INDIRECT_2M + (off & MASK(16));
 892        return 1;
 893}
 894
 895/*
 896 * In: 'off' is offset from CRB space in 128M pci map
 897 * Out: 'off' is 2M pci map addr
 898 * side effect: lock crb window
 899 */
 900static int
 901qlcnic_pci_set_crbwindow_2M(struct qlcnic_adapter *adapter, ulong off)
 902{
 903        u32 window;
 904        void __iomem *addr = adapter->ahw->pci_base0 + CRB_WINDOW_2M;
 905
 906        off -= QLCNIC_PCI_CRBSPACE;
 907
 908        window = CRB_HI(off);
 909        if (window == 0) {
 910                dev_err(&adapter->pdev->dev, "Invalid offset 0x%lx\n", off);
 911                return -EIO;
 912        }
 913
 914        writel(window, addr);
 915        if (readl(addr) != window) {
 916                if (printk_ratelimit())
 917                        dev_warn(&adapter->pdev->dev,
 918                                "failed to set CRB window to %d off 0x%lx\n",
 919                                window, off);
 920                return -EIO;
 921        }
 922        return 0;
 923}
 924
 925int
 926qlcnic_hw_write_wx_2M(struct qlcnic_adapter *adapter, ulong off, u32 data)
 927{
 928        unsigned long flags;
 929        int rv;
 930        void __iomem *addr = NULL;
 931
 932        rv = qlcnic_pci_get_crb_addr_2M(adapter, off, &addr);
 933
 934        if (rv == 0) {
 935                writel(data, addr);
 936                return 0;
 937        }
 938
 939        if (rv > 0) {
 940                /* indirect access */
 941                write_lock_irqsave(&adapter->ahw->crb_lock, flags);
 942                crb_win_lock(adapter);
 943                rv = qlcnic_pci_set_crbwindow_2M(adapter, off);
 944                if (!rv)
 945                        writel(data, addr);
 946                crb_win_unlock(adapter);
 947                write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
 948                return rv;
 949        }
 950
 951        dev_err(&adapter->pdev->dev,
 952                        "%s: invalid offset: 0x%016lx\n", __func__, off);
 953        dump_stack();
 954        return -EIO;
 955}
 956
 957u32
 958qlcnic_hw_read_wx_2M(struct qlcnic_adapter *adapter, ulong off)
 959{
 960        unsigned long flags;
 961        int rv;
 962        u32 data = -1;
 963        void __iomem *addr = NULL;
 964
 965        rv = qlcnic_pci_get_crb_addr_2M(adapter, off, &addr);
 966
 967        if (rv == 0)
 968                return readl(addr);
 969
 970        if (rv > 0) {
 971                /* indirect access */
 972                write_lock_irqsave(&adapter->ahw->crb_lock, flags);
 973                crb_win_lock(adapter);
 974                if (!qlcnic_pci_set_crbwindow_2M(adapter, off))
 975                        data = readl(addr);
 976                crb_win_unlock(adapter);
 977                write_unlock_irqrestore(&adapter->ahw->crb_lock, flags);
 978                return data;
 979        }
 980
 981        dev_err(&adapter->pdev->dev,
 982                        "%s: invalid offset: 0x%016lx\n", __func__, off);
 983        dump_stack();
 984        return -1;
 985}
 986
 987
 988void __iomem *
 989qlcnic_get_ioaddr(struct qlcnic_adapter *adapter, u32 offset)
 990{
 991        void __iomem *addr = NULL;
 992
 993        WARN_ON(qlcnic_pci_get_crb_addr_2M(adapter, offset, &addr));
 994
 995        return addr;
 996}
 997
 998
 999static int
1000qlcnic_pci_set_window_2M(struct qlcnic_adapter *adapter,
1001                u64 addr, u32 *start)
1002{
1003        u32 window;
1004
1005        window = OCM_WIN_P3P(addr);
1006
1007        writel(window, adapter->ahw->ocm_win_crb);
1008        /* read back to flush */
1009        readl(adapter->ahw->ocm_win_crb);
1010
1011        *start = QLCNIC_PCI_OCM0_2M + GET_MEM_OFFS_2M(addr);
1012        return 0;
1013}
1014
1015static int
1016qlcnic_pci_mem_access_direct(struct qlcnic_adapter *adapter, u64 off,
1017                u64 *data, int op)
1018{
1019        void __iomem *addr;
1020        int ret;
1021        u32 start;
1022
1023        mutex_lock(&adapter->ahw->mem_lock);
1024
1025        ret = qlcnic_pci_set_window_2M(adapter, off, &start);
1026        if (ret != 0)
1027                goto unlock;
1028
1029        addr = adapter->ahw->pci_base0 + start;
1030
1031        if (op == 0)    /* read */
1032                *data = readq(addr);
1033        else            /* write */
1034                writeq(*data, addr);
1035
1036unlock:
1037        mutex_unlock(&adapter->ahw->mem_lock);
1038
1039        return ret;
1040}
1041
1042void
1043qlcnic_pci_camqm_read_2M(struct qlcnic_adapter *adapter, u64 off, u64 *data)
1044{
1045        void __iomem *addr = adapter->ahw->pci_base0 +
1046                QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1047
1048        mutex_lock(&adapter->ahw->mem_lock);
1049        *data = readq(addr);
1050        mutex_unlock(&adapter->ahw->mem_lock);
1051}
1052
1053void
1054qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
1055{
1056        void __iomem *addr = adapter->ahw->pci_base0 +
1057                QLCNIC_PCI_CAMQM_2M_BASE + (off - QLCNIC_PCI_CAMQM);
1058
1059        mutex_lock(&adapter->ahw->mem_lock);
1060        writeq(data, addr);
1061        mutex_unlock(&adapter->ahw->mem_lock);
1062}
1063
1064#define MAX_CTL_CHECK   1000
1065
1066int
1067qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter,
1068                u64 off, u64 data)
1069{
1070        int i, j, ret;
1071        u32 temp, off8;
1072        void __iomem *mem_crb;
1073
1074        /* Only 64-bit aligned access */
1075        if (off & 7)
1076                return -EIO;
1077
1078        /* P3 onward, test agent base for MIU and SIU is same */
1079        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1080                                QLCNIC_ADDR_QDR_NET_MAX)) {
1081                mem_crb = qlcnic_get_ioaddr(adapter,
1082                                QLCNIC_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1083                goto correct;
1084        }
1085
1086        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET, QLCNIC_ADDR_DDR_NET_MAX)) {
1087                mem_crb = qlcnic_get_ioaddr(adapter,
1088                                QLCNIC_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1089                goto correct;
1090        }
1091
1092        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX))
1093                return qlcnic_pci_mem_access_direct(adapter, off, &data, 1);
1094
1095        return -EIO;
1096
1097correct:
1098        off8 = off & ~0xf;
1099
1100        mutex_lock(&adapter->ahw->mem_lock);
1101
1102        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1103        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1104
1105        i = 0;
1106        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1107        writel((TA_CTL_START | TA_CTL_ENABLE),
1108                        (mem_crb + TEST_AGT_CTRL));
1109
1110        for (j = 0; j < MAX_CTL_CHECK; j++) {
1111                temp = readl(mem_crb + TEST_AGT_CTRL);
1112                if ((temp & TA_CTL_BUSY) == 0)
1113                        break;
1114        }
1115
1116        if (j >= MAX_CTL_CHECK) {
1117                ret = -EIO;
1118                goto done;
1119        }
1120
1121        i = (off & 0xf) ? 0 : 2;
1122        writel(readl(mem_crb + MIU_TEST_AGT_RDDATA(i)),
1123                        mem_crb + MIU_TEST_AGT_WRDATA(i));
1124        writel(readl(mem_crb + MIU_TEST_AGT_RDDATA(i+1)),
1125                        mem_crb + MIU_TEST_AGT_WRDATA(i+1));
1126        i = (off & 0xf) ? 2 : 0;
1127
1128        writel(data & 0xffffffff,
1129                        mem_crb + MIU_TEST_AGT_WRDATA(i));
1130        writel((data >> 32) & 0xffffffff,
1131                        mem_crb + MIU_TEST_AGT_WRDATA(i+1));
1132
1133        writel((TA_CTL_ENABLE | TA_CTL_WRITE), (mem_crb + TEST_AGT_CTRL));
1134        writel((TA_CTL_START | TA_CTL_ENABLE | TA_CTL_WRITE),
1135                        (mem_crb + TEST_AGT_CTRL));
1136
1137        for (j = 0; j < MAX_CTL_CHECK; j++) {
1138                temp = readl(mem_crb + TEST_AGT_CTRL);
1139                if ((temp & TA_CTL_BUSY) == 0)
1140                        break;
1141        }
1142
1143        if (j >= MAX_CTL_CHECK) {
1144                if (printk_ratelimit())
1145                        dev_err(&adapter->pdev->dev,
1146                                        "failed to write through agent\n");
1147                ret = -EIO;
1148        } else
1149                ret = 0;
1150
1151done:
1152        mutex_unlock(&adapter->ahw->mem_lock);
1153
1154        return ret;
1155}
1156
1157int
1158qlcnic_pci_mem_read_2M(struct qlcnic_adapter *adapter,
1159                u64 off, u64 *data)
1160{
1161        int j, ret;
1162        u32 temp, off8;
1163        u64 val;
1164        void __iomem *mem_crb;
1165
1166        /* Only 64-bit aligned access */
1167        if (off & 7)
1168                return -EIO;
1169
1170        /* P3 onward, test agent base for MIU and SIU is same */
1171        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_QDR_NET,
1172                                QLCNIC_ADDR_QDR_NET_MAX)) {
1173                mem_crb = qlcnic_get_ioaddr(adapter,
1174                                QLCNIC_CRB_QDR_NET+MIU_TEST_AGT_BASE);
1175                goto correct;
1176        }
1177
1178        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_DDR_NET, QLCNIC_ADDR_DDR_NET_MAX)) {
1179                mem_crb = qlcnic_get_ioaddr(adapter,
1180                                QLCNIC_CRB_DDR_NET+MIU_TEST_AGT_BASE);
1181                goto correct;
1182        }
1183
1184        if (ADDR_IN_RANGE(off, QLCNIC_ADDR_OCM0, QLCNIC_ADDR_OCM0_MAX)) {
1185                return qlcnic_pci_mem_access_direct(adapter,
1186                                off, data, 0);
1187        }
1188
1189        return -EIO;
1190
1191correct:
1192        off8 = off & ~0xf;
1193
1194        mutex_lock(&adapter->ahw->mem_lock);
1195
1196        writel(off8, (mem_crb + MIU_TEST_AGT_ADDR_LO));
1197        writel(0, (mem_crb + MIU_TEST_AGT_ADDR_HI));
1198        writel(TA_CTL_ENABLE, (mem_crb + TEST_AGT_CTRL));
1199        writel((TA_CTL_START | TA_CTL_ENABLE), (mem_crb + TEST_AGT_CTRL));
1200
1201        for (j = 0; j < MAX_CTL_CHECK; j++) {
1202                temp = readl(mem_crb + TEST_AGT_CTRL);
1203                if ((temp & TA_CTL_BUSY) == 0)
1204                        break;
1205        }
1206
1207        if (j >= MAX_CTL_CHECK) {
1208                if (printk_ratelimit())
1209                        dev_err(&adapter->pdev->dev,
1210                                        "failed to read through agent\n");
1211                ret = -EIO;
1212        } else {
1213                off8 = MIU_TEST_AGT_RDDATA_LO;
1214                if (off & 0xf)
1215                        off8 = MIU_TEST_AGT_RDDATA_UPPER_LO;
1216
1217                temp = readl(mem_crb + off8 + 4);
1218                val = (u64)temp << 32;
1219                val |= readl(mem_crb + off8);
1220                *data = val;
1221                ret = 0;
1222        }
1223
1224        mutex_unlock(&adapter->ahw->mem_lock);
1225
1226        return ret;
1227}
1228
1229int qlcnic_get_board_info(struct qlcnic_adapter *adapter)
1230{
1231        int offset, board_type, magic;
1232        struct pci_dev *pdev = adapter->pdev;
1233
1234        offset = QLCNIC_FW_MAGIC_OFFSET;
1235        if (qlcnic_rom_fast_read(adapter, offset, &magic))
1236                return -EIO;
1237
1238        if (magic != QLCNIC_BDINFO_MAGIC) {
1239                dev_err(&pdev->dev, "invalid board config, magic=%08x\n",
1240                        magic);
1241                return -EIO;
1242        }
1243
1244        offset = QLCNIC_BRDTYPE_OFFSET;
1245        if (qlcnic_rom_fast_read(adapter, offset, &board_type))
1246                return -EIO;
1247
1248        adapter->ahw->board_type = board_type;
1249
1250        if (board_type == QLCNIC_BRDTYPE_P3P_4_GB_MM) {
1251                u32 gpio = QLCRD32(adapter, QLCNIC_ROMUSB_GLB_PAD_GPIO_I);
1252                if ((gpio & 0x8000) == 0)
1253                        board_type = QLCNIC_BRDTYPE_P3P_10G_TP;
1254        }
1255
1256        switch (board_type) {
1257        case QLCNIC_BRDTYPE_P3P_HMEZ:
1258        case QLCNIC_BRDTYPE_P3P_XG_LOM:
1259        case QLCNIC_BRDTYPE_P3P_10G_CX4:
1260        case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
1261        case QLCNIC_BRDTYPE_P3P_IMEZ:
1262        case QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS:
1263        case QLCNIC_BRDTYPE_P3P_10G_SFP_CT:
1264        case QLCNIC_BRDTYPE_P3P_10G_SFP_QT:
1265        case QLCNIC_BRDTYPE_P3P_10G_XFP:
1266        case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
1267                adapter->ahw->port_type = QLCNIC_XGBE;
1268                break;
1269        case QLCNIC_BRDTYPE_P3P_REF_QG:
1270        case QLCNIC_BRDTYPE_P3P_4_GB:
1271        case QLCNIC_BRDTYPE_P3P_4_GB_MM:
1272                adapter->ahw->port_type = QLCNIC_GBE;
1273                break;
1274        case QLCNIC_BRDTYPE_P3P_10G_TP:
1275                adapter->ahw->port_type = (adapter->portnum < 2) ?
1276                        QLCNIC_XGBE : QLCNIC_GBE;
1277                break;
1278        default:
1279                dev_err(&pdev->dev, "unknown board type %x\n", board_type);
1280                adapter->ahw->port_type = QLCNIC_XGBE;
1281                break;
1282        }
1283
1284        return 0;
1285}
1286
1287int
1288qlcnic_wol_supported(struct qlcnic_adapter *adapter)
1289{
1290        u32 wol_cfg;
1291
1292        wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG_NV);
1293        if (wol_cfg & (1UL << adapter->portnum)) {
1294                wol_cfg = QLCRD32(adapter, QLCNIC_WOL_CONFIG);
1295                if (wol_cfg & (1 << adapter->portnum))
1296                        return 1;
1297        }
1298
1299        return 0;
1300}
1301
1302int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
1303{
1304        struct qlcnic_nic_req   req;
1305        int rv;
1306        u64 word;
1307
1308        memset(&req, 0, sizeof(struct qlcnic_nic_req));
1309        req.qhdr = cpu_to_le64(QLCNIC_HOST_REQUEST << 23);
1310
1311        word = QLCNIC_H2C_OPCODE_CONFIG_LED | ((u64)adapter->portnum << 16);
1312        req.req_hdr = cpu_to_le64(word);
1313
1314        req.words[0] = cpu_to_le64((u64)rate << 32);
1315        req.words[1] = cpu_to_le64(state);
1316
1317        rv = qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
1318        if (rv)
1319                dev_err(&adapter->pdev->dev, "LED configuration failed.\n");
1320
1321        return rv;
1322}
1323
1324/* FW dump related functions */
1325static u32
1326qlcnic_dump_crb(struct qlcnic_adapter *adapter, struct qlcnic_dump_entry *entry,
1327                u32 *buffer)
1328{
1329        int i;
1330        u32 addr, data;
1331        struct __crb *crb = &entry->region.crb;
1332        void __iomem *base = adapter->ahw->pci_base0;
1333
1334        addr = crb->addr;
1335
1336        for (i = 0; i < crb->no_ops; i++) {
1337                QLCNIC_RD_DUMP_REG(addr, base, &data);
1338                *buffer++ = cpu_to_le32(addr);
1339                *buffer++ = cpu_to_le32(data);
1340                addr += crb->stride;
1341        }
1342        return crb->no_ops * 2 * sizeof(u32);
1343}
1344
1345static u32
1346qlcnic_dump_ctrl(struct qlcnic_adapter *adapter,
1347        struct qlcnic_dump_entry *entry, u32 *buffer)
1348{
1349        int i, k, timeout = 0;
1350        void __iomem *base = adapter->ahw->pci_base0;
1351        u32 addr, data;
1352        u8 opcode, no_ops;
1353        struct __ctrl *ctr = &entry->region.ctrl;
1354        struct qlcnic_dump_template_hdr *t_hdr = adapter->ahw->fw_dump.tmpl_hdr;
1355
1356        addr = ctr->addr;
1357        no_ops = ctr->no_ops;
1358
1359        for (i = 0; i < no_ops; i++) {
1360                k = 0;
1361                opcode = 0;
1362                for (k = 0; k < 8; k++) {
1363                        if (!(ctr->opcode & (1 << k)))
1364                                continue;
1365                        switch (1 << k) {
1366                        case QLCNIC_DUMP_WCRB:
1367                                QLCNIC_WR_DUMP_REG(addr, base, ctr->val1);
1368                                break;
1369                        case QLCNIC_DUMP_RWCRB:
1370                                QLCNIC_RD_DUMP_REG(addr, base, &data);
1371                                QLCNIC_WR_DUMP_REG(addr, base, data);
1372                                break;
1373                        case QLCNIC_DUMP_ANDCRB:
1374                                QLCNIC_RD_DUMP_REG(addr, base, &data);
1375                                QLCNIC_WR_DUMP_REG(addr, base,
1376                                        (data & ctr->val2));
1377                                break;
1378                        case QLCNIC_DUMP_ORCRB:
1379                                QLCNIC_RD_DUMP_REG(addr, base, &data);
1380                                QLCNIC_WR_DUMP_REG(addr, base,
1381                                        (data | ctr->val3));
1382                                break;
1383                        case QLCNIC_DUMP_POLLCRB:
1384                                while (timeout <= ctr->timeout) {
1385                                        QLCNIC_RD_DUMP_REG(addr, base, &data);
1386                                        if ((data & ctr->val2) == ctr->val1)
1387                                                break;
1388                                        msleep(1);
1389                                        timeout++;
1390                                }
1391                                if (timeout > ctr->timeout) {
1392                                        dev_info(&adapter->pdev->dev,
1393                                        "Timed out, aborting poll CRB\n");
1394                                        return -EINVAL;
1395                                }
1396                                break;
1397                        case QLCNIC_DUMP_RD_SAVE:
1398                                if (ctr->index_a)
1399                                        addr = t_hdr->saved_state[ctr->index_a];
1400                                QLCNIC_RD_DUMP_REG(addr, base, &data);
1401                                t_hdr->saved_state[ctr->index_v] = data;
1402                                break;
1403                        case QLCNIC_DUMP_WRT_SAVED:
1404                                if (ctr->index_v)
1405                                        data = t_hdr->saved_state[ctr->index_v];
1406                                else
1407                                        data = ctr->val1;
1408                                if (ctr->index_a)
1409                                        addr = t_hdr->saved_state[ctr->index_a];
1410                                QLCNIC_WR_DUMP_REG(addr, base, data);
1411                                break;
1412                        case QLCNIC_DUMP_MOD_SAVE_ST:
1413                                data = t_hdr->saved_state[ctr->index_v];
1414                                data <<= ctr->shl_val;
1415                                data >>= ctr->shr_val;
1416                                if (ctr->val2)
1417                                        data &= ctr->val2;
1418                                data |= ctr->val3;
1419                                data += ctr->val1;
1420                                t_hdr->saved_state[ctr->index_v] = data;
1421                                break;
1422                        default:
1423                                dev_info(&adapter->pdev->dev,
1424                                        "Unknown opcode\n");
1425                                break;
1426                        }
1427                }
1428                addr += ctr->stride;
1429        }
1430        return 0;
1431}
1432
1433static u32
1434qlcnic_dump_mux(struct qlcnic_adapter *adapter, struct qlcnic_dump_entry *entry,
1435        u32 *buffer)
1436{
1437        int loop;
1438        u32 val, data = 0;
1439        struct __mux *mux = &entry->region.mux;
1440        void __iomem *base = adapter->ahw->pci_base0;
1441
1442        val = mux->val;
1443        for (loop = 0; loop < mux->no_ops; loop++) {
1444                QLCNIC_WR_DUMP_REG(mux->addr, base, val);
1445                QLCNIC_RD_DUMP_REG(mux->read_addr, base, &data);
1446                *buffer++ = cpu_to_le32(val);
1447                *buffer++ = cpu_to_le32(data);
1448                val += mux->val_stride;
1449        }
1450        return 2 * mux->no_ops * sizeof(u32);
1451}
1452
1453static u32
1454qlcnic_dump_que(struct qlcnic_adapter *adapter, struct qlcnic_dump_entry *entry,
1455        u32 *buffer)
1456{
1457        int i, loop;
1458        u32 cnt, addr, data, que_id = 0;
1459        void __iomem *base = adapter->ahw->pci_base0;
1460        struct __queue *que = &entry->region.que;
1461
1462        addr = que->read_addr;
1463        cnt = que->read_addr_cnt;
1464
1465        for (loop = 0; loop < que->no_ops; loop++) {
1466                QLCNIC_WR_DUMP_REG(que->sel_addr, base, que_id);
1467                addr = que->read_addr;
1468                for (i = 0; i < cnt; i++) {
1469                        QLCNIC_RD_DUMP_REG(addr, base, &data);
1470                        *buffer++ = cpu_to_le32(data);
1471                        addr += que->read_addr_stride;
1472                }
1473                que_id += que->stride;
1474        }
1475        return que->no_ops * cnt * sizeof(u32);
1476}
1477
1478static u32
1479qlcnic_dump_ocm(struct qlcnic_adapter *adapter, struct qlcnic_dump_entry *entry,
1480        u32 *buffer)
1481{
1482        int i;
1483        u32 data;
1484        void __iomem *addr;
1485        struct __ocm *ocm = &entry->region.ocm;
1486
1487        addr = adapter->ahw->pci_base0 + ocm->read_addr;
1488        for (i = 0; i < ocm->no_ops; i++) {
1489                data = readl(addr);
1490                *buffer++ = cpu_to_le32(data);
1491                addr += ocm->read_addr_stride;
1492        }
1493        return ocm->no_ops * sizeof(u32);
1494}
1495
1496static u32
1497qlcnic_read_rom(struct qlcnic_adapter *adapter, struct qlcnic_dump_entry *entry,
1498        u32 *buffer)
1499{
1500        int i, count = 0;
1501        u32 fl_addr, size, val, lck_val, addr;
1502        struct __mem *rom = &entry->region.mem;
1503        void __iomem *base = adapter->ahw->pci_base0;
1504
1505        fl_addr = rom->addr;
1506        size = rom->size/4;
1507lock_try:
1508        lck_val = readl(base + QLCNIC_FLASH_SEM2_LK);
1509        if (!lck_val && count < MAX_CTL_CHECK) {
1510                msleep(10);
1511                count++;
1512                goto lock_try;
1513        }
1514        writel(adapter->ahw->pci_func, (base + QLCNIC_FLASH_LOCK_ID));
1515        for (i = 0; i < size; i++) {
1516                addr = fl_addr & 0xFFFF0000;
1517                QLCNIC_WR_DUMP_REG(FLASH_ROM_WINDOW, base, addr);
1518                addr = LSW(fl_addr) + FLASH_ROM_DATA;
1519                QLCNIC_RD_DUMP_REG(addr, base, &val);
1520                fl_addr += 4;
1521                *buffer++ = cpu_to_le32(val);
1522        }
1523        readl(base + QLCNIC_FLASH_SEM2_ULK);
1524        return rom->size;
1525}
1526
1527static u32
1528qlcnic_dump_l1_cache(struct qlcnic_adapter *adapter,
1529        struct qlcnic_dump_entry *entry, u32 *buffer)
1530{
1531        int i;
1532        u32 cnt, val, data, addr;
1533        void __iomem *base = adapter->ahw->pci_base0;
1534        struct __cache *l1 = &entry->region.cache;
1535
1536        val = l1->init_tag_val;
1537
1538        for (i = 0; i < l1->no_ops; i++) {
1539                QLCNIC_WR_DUMP_REG(l1->addr, base, val);
1540                QLCNIC_WR_DUMP_REG(l1->ctrl_addr, base, LSW(l1->ctrl_val));
1541                addr = l1->read_addr;
1542                cnt = l1->read_addr_num;
1543                while (cnt) {
1544                        QLCNIC_RD_DUMP_REG(addr, base, &data);
1545                        *buffer++ = cpu_to_le32(data);
1546                        addr += l1->read_addr_stride;
1547                        cnt--;
1548                }
1549                val += l1->stride;
1550        }
1551        return l1->no_ops * l1->read_addr_num * sizeof(u32);
1552}
1553
1554static u32
1555qlcnic_dump_l2_cache(struct qlcnic_adapter *adapter,
1556        struct qlcnic_dump_entry *entry, u32 *buffer)
1557{
1558        int i;
1559        u32 cnt, val, data, addr;
1560        u8 poll_mask, poll_to, time_out = 0;
1561        void __iomem *base = adapter->ahw->pci_base0;
1562        struct __cache *l2 = &entry->region.cache;
1563
1564        val = l2->init_tag_val;
1565        poll_mask = LSB(MSW(l2->ctrl_val));
1566        poll_to = MSB(MSW(l2->ctrl_val));
1567
1568        for (i = 0; i < l2->no_ops; i++) {
1569                QLCNIC_WR_DUMP_REG(l2->addr, base, val);
1570                if (LSW(l2->ctrl_val))
1571                        QLCNIC_WR_DUMP_REG(l2->ctrl_addr, base,
1572                                LSW(l2->ctrl_val));
1573                if (!poll_mask)
1574                        goto skip_poll;
1575                do {
1576                        QLCNIC_RD_DUMP_REG(l2->ctrl_addr, base, &data);
1577                        if (!(data & poll_mask))
1578                                break;
1579                        msleep(1);
1580                        time_out++;
1581                } while (time_out <= poll_to);
1582
1583                if (time_out > poll_to) {
1584                        dev_err(&adapter->pdev->dev,
1585                                "Timeout exceeded in %s, aborting dump\n",
1586                                __func__);
1587                        return -EINVAL;
1588                }
1589skip_poll:
1590                addr = l2->read_addr;
1591                cnt = l2->read_addr_num;
1592                while (cnt) {
1593                        QLCNIC_RD_DUMP_REG(addr, base, &data);
1594                        *buffer++ = cpu_to_le32(data);
1595                        addr += l2->read_addr_stride;
1596                        cnt--;
1597                }
1598                val += l2->stride;
1599        }
1600        return l2->no_ops * l2->read_addr_num * sizeof(u32);
1601}
1602
1603static u32
1604qlcnic_read_memory(struct qlcnic_adapter *adapter,
1605        struct qlcnic_dump_entry *entry, u32 *buffer)
1606{
1607        u32 addr, data, test, ret = 0;
1608        int i, reg_read;
1609        struct __mem *mem = &entry->region.mem;
1610        void __iomem *base = adapter->ahw->pci_base0;
1611
1612        reg_read = mem->size;
1613        addr = mem->addr;
1614        /* check for data size of multiple of 16 and 16 byte alignment */
1615        if ((addr & 0xf) || (reg_read%16)) {
1616                dev_info(&adapter->pdev->dev,
1617                        "Unaligned memory addr:0x%x size:0x%x\n",
1618                        addr, reg_read);
1619                return -EINVAL;
1620        }
1621
1622        mutex_lock(&adapter->ahw->mem_lock);
1623
1624        while (reg_read != 0) {
1625                QLCNIC_WR_DUMP_REG(MIU_TEST_ADDR_LO, base, addr);
1626                QLCNIC_WR_DUMP_REG(MIU_TEST_ADDR_HI, base, 0);
1627                QLCNIC_WR_DUMP_REG(MIU_TEST_CTR, base,
1628                        TA_CTL_ENABLE | TA_CTL_START);
1629
1630                for (i = 0; i < MAX_CTL_CHECK; i++) {
1631                        QLCNIC_RD_DUMP_REG(MIU_TEST_CTR, base, &test);
1632                        if (!(test & TA_CTL_BUSY))
1633                                break;
1634                }
1635                if (i == MAX_CTL_CHECK) {
1636                        if (printk_ratelimit()) {
1637                                dev_err(&adapter->pdev->dev,
1638                                        "failed to read through agent\n");
1639                                ret = -EINVAL;
1640                                goto out;
1641                        }
1642                }
1643                for (i = 0; i < 4; i++) {
1644                        QLCNIC_RD_DUMP_REG(MIU_TEST_READ_DATA[i], base, &data);
1645                        *buffer++ = cpu_to_le32(data);
1646                }
1647                addr += 16;
1648                reg_read -= 16;
1649                ret += 16;
1650        }
1651out:
1652        mutex_unlock(&adapter->ahw->mem_lock);
1653        return mem->size;
1654}
1655
1656static u32
1657qlcnic_dump_nop(struct qlcnic_adapter *adapter,
1658        struct qlcnic_dump_entry *entry, u32 *buffer)
1659{
1660        entry->hdr.flags |= QLCNIC_DUMP_SKIP;
1661        return 0;
1662}
1663
1664struct qlcnic_dump_operations fw_dump_ops[] = {
1665        { QLCNIC_DUMP_NOP, qlcnic_dump_nop },
1666        { QLCNIC_DUMP_READ_CRB, qlcnic_dump_crb },
1667        { QLCNIC_DUMP_READ_MUX, qlcnic_dump_mux },
1668        { QLCNIC_DUMP_QUEUE, qlcnic_dump_que },
1669        { QLCNIC_DUMP_BRD_CONFIG, qlcnic_read_rom },
1670        { QLCNIC_DUMP_READ_OCM, qlcnic_dump_ocm },
1671        { QLCNIC_DUMP_PEG_REG, qlcnic_dump_ctrl },
1672        { QLCNIC_DUMP_L1_DTAG, qlcnic_dump_l1_cache },
1673        { QLCNIC_DUMP_L1_ITAG, qlcnic_dump_l1_cache },
1674        { QLCNIC_DUMP_L1_DATA, qlcnic_dump_l1_cache },
1675        { QLCNIC_DUMP_L1_INST, qlcnic_dump_l1_cache },
1676        { QLCNIC_DUMP_L2_DTAG, qlcnic_dump_l2_cache },
1677        { QLCNIC_DUMP_L2_ITAG, qlcnic_dump_l2_cache },
1678        { QLCNIC_DUMP_L2_DATA, qlcnic_dump_l2_cache },
1679        { QLCNIC_DUMP_L2_INST, qlcnic_dump_l2_cache },
1680        { QLCNIC_DUMP_READ_ROM, qlcnic_read_rom },
1681        { QLCNIC_DUMP_READ_MEM, qlcnic_read_memory },
1682        { QLCNIC_DUMP_READ_CTRL, qlcnic_dump_ctrl },
1683        { QLCNIC_DUMP_TLHDR, qlcnic_dump_nop },
1684        { QLCNIC_DUMP_RDEND, qlcnic_dump_nop },
1685};
1686
1687/* Walk the template and collect dump for each entry in the dump template */
1688static int
1689qlcnic_valid_dump_entry(struct device *dev, struct qlcnic_dump_entry *entry,
1690        u32 size)
1691{
1692        int ret = 1;
1693        if (size != entry->hdr.cap_size) {
1694                dev_info(dev,
1695                "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
1696                entry->hdr.type, entry->hdr.mask, size, entry->hdr.cap_size);
1697                dev_info(dev, "Aborting further dump capture\n");
1698                ret = 0;
1699        }
1700        return ret;
1701}
1702
1703int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
1704{
1705        u32 *buffer;
1706        char mesg[64];
1707        char *msg[] = {mesg, NULL};
1708        int i, k, ops_cnt, ops_index, dump_size = 0;
1709        u32 entry_offset, dump, no_entries, buf_offset = 0;
1710        struct qlcnic_dump_entry *entry;
1711        struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
1712        struct qlcnic_dump_template_hdr *tmpl_hdr = fw_dump->tmpl_hdr;
1713
1714        if (fw_dump->clr) {
1715                dev_info(&adapter->pdev->dev,
1716                        "Previous dump not cleared, not capturing dump\n");
1717                return -EIO;
1718        }
1719        /* Calculate the size for dump data area only */
1720        for (i = 2, k = 1; (i & QLCNIC_DUMP_MASK_MAX); i <<= 1, k++)
1721                if (i & tmpl_hdr->drv_cap_mask)
1722                        dump_size += tmpl_hdr->cap_sizes[k];
1723        if (!dump_size)
1724                return -EIO;
1725
1726        fw_dump->data = vzalloc(dump_size);
1727        if (!fw_dump->data) {
1728                dev_info(&adapter->pdev->dev,
1729                        "Unable to allocate (%d KB) for fw dump\n",
1730                        dump_size/1024);
1731                return -ENOMEM;
1732        }
1733        buffer = fw_dump->data;
1734        fw_dump->size = dump_size;
1735        no_entries = tmpl_hdr->num_entries;
1736        ops_cnt = ARRAY_SIZE(fw_dump_ops);
1737        entry_offset = tmpl_hdr->offset;
1738        tmpl_hdr->sys_info[0] = QLCNIC_DRIVER_VERSION;
1739        tmpl_hdr->sys_info[1] = adapter->fw_version;
1740
1741        for (i = 0; i < no_entries; i++) {
1742                entry = (void *)tmpl_hdr + entry_offset;
1743                if (!(entry->hdr.mask & tmpl_hdr->drv_cap_mask)) {
1744                        entry->hdr.flags |= QLCNIC_DUMP_SKIP;
1745                        entry_offset += entry->hdr.offset;
1746                        continue;
1747                }
1748                /* Find the handler for this entry */
1749                ops_index = 0;
1750                while (ops_index < ops_cnt) {
1751                        if (entry->hdr.type == fw_dump_ops[ops_index].opcode)
1752                                break;
1753                        ops_index++;
1754                }
1755                if (ops_index == ops_cnt) {
1756                        dev_info(&adapter->pdev->dev,
1757                                "Invalid entry type %d, exiting dump\n",
1758                                entry->hdr.type);
1759                        goto error;
1760                }
1761                /* Collect dump for this entry */
1762                dump = fw_dump_ops[ops_index].handler(adapter, entry, buffer);
1763                if (dump && !qlcnic_valid_dump_entry(&adapter->pdev->dev, entry,
1764                        dump))
1765                        entry->hdr.flags |= QLCNIC_DUMP_SKIP;
1766                buf_offset += entry->hdr.cap_size;
1767                entry_offset += entry->hdr.offset;
1768                buffer = fw_dump->data + buf_offset;
1769        }
1770        if (dump_size != buf_offset) {
1771                dev_info(&adapter->pdev->dev,
1772                        "Captured(%d) and expected size(%d) do not match\n",
1773                        buf_offset, dump_size);
1774                goto error;
1775        } else {
1776                fw_dump->clr = 1;
1777                snprintf(mesg, sizeof(mesg), "FW_DUMP=%s",
1778                        adapter->netdev->name);
1779                dev_info(&adapter->pdev->dev, "Dump data, %d bytes captured\n",
1780                        fw_dump->size);
1781                /* Send a udev event to notify availability of FW dump */
1782                kobject_uevent_env(&adapter->pdev->dev.kobj, KOBJ_CHANGE, msg);
1783                return 0;
1784        }
1785error:
1786        vfree(fw_dump->data);
1787        return -EINVAL;
1788}
1789