drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c

   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
  27 static inline u64 readq(void __iomem *addr)
  28 {
  29         return readl(addr) | (((u64) readl(addr + 4)) << 32LL);
  30 }
  31 #endif
  32
  33 #ifndef writeq
  34 static 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
  41 static struct crb_128M_2M_block_map
  42 crb_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  */
 202 static 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
 273 int
 274 qlcnic_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
 297 void
 298 qlcnic_pcie_sem_unlock(struct qlcnic_adapter *adapter, int sem)
 299 {
 300         QLCRD32(adapter, QLCNIC_PCIE_REG(PCIE_SEM_UNLOCK(sem)));
 301 }
 302
 303 static int
 304 qlcnic_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
 360 static int
 361 qlcnic_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
 385 static 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
 415 void 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
 448 send_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
 459 int 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
 478 void 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
 492 void 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
 520 void 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
 543 int 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
 563 int 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
 577 void 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  */
 596 int 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
 621 int 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
 647 int 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
 679 int 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
 722 int 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
 748 int 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
 769 int 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
 800 int 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
 820 netdev_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
 837 int 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  */
 866 static int
 867 qlcnic_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  */
 900 static int
 901 qlcnic_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
 925 int
 926 qlcnic_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
 957 u32
 958 qlcnic_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
 988 void __iomem *
 989 qlcnic_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
 999 static int
1000 qlcnic_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
1015 static int
1016 qlcnic_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
1036 unlock:
1037         mutex_unlock(&adapter->ahw->mem_lock);
1038
1039         return ret;
1040 }
1041
1042 void
1043 qlcnic_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
1053 void
1054 qlcnic_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
1066 int
1067 qlcnic_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
1097 correct:
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
1151 done:
1152         mutex_unlock(&adapter->ahw->mem_lock);
1153
1154         return ret;
1155 }
1156
1157 int
1158 qlcnic_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
1191 correct:
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
1229 int 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
1287 int
1288 qlcnic_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
1302 int 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 */
1325 static u32
1326 qlcnic_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
1345 static u32
1346 qlcnic_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
1433 static u32
1434 qlcnic_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
1453 static u32
1454 qlcnic_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
1478 static u32
1479 qlcnic_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
1496 static u32
1497 qlcnic_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;
1507 lock_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
1527 static u32
1528 qlcnic_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
1554 static u32
1555 qlcnic_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                 }
1589 skip_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
1603 static u32
1604 qlcnic_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         }
1651 out:
1652         mutex_unlock(&adapter->ahw->mem_lock);
1653         return mem->size;
1654 }
1655
1656 static u32
1657 qlcnic_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
1664 struct 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 */
1688 static int
1689 qlcnic_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
1703 int 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         }
1785 error:
1786         vfree(fw_dump->data);
1787         return -EINVAL;
1788 }