drivers/net/qede/base/ecore_hw.c

   1 /*
   2  * Copyright (c) 2016 QLogic Corporation.
   3  * All rights reserved.
   4  * www.qlogic.com
   5  *
   6  * See LICENSE.qede_pmd for copyright and licensing details.
   7  */
   8
   9 #include "bcm_osal.h"
  10 #include "ecore_hsi_common.h"
  11 #include "ecore_status.h"
  12 #include "ecore.h"
  13 #include "ecore_hw.h"
  14 #include "reg_addr.h"
  15 #include "ecore_utils.h"
  16 #include "ecore_iov_api.h"
  17
  18 #ifndef ASIC_ONLY
  19 #define ECORE_EMUL_FACTOR 2000
  20 #define ECORE_FPGA_FACTOR 200
  21 #endif
  22
  23 #define ECORE_BAR_ACQUIRE_TIMEOUT 1000
  24
  25 /* Invalid values */
  26 #define ECORE_BAR_INVALID_OFFSET        (OSAL_CPU_TO_LE32(-1))
  27
  28 struct ecore_ptt {
  29         osal_list_entry_t list_entry;
  30         unsigned int idx;
  31         struct pxp_ptt_entry pxp;
  32         u8 hwfn_id;
  33 };
  34
  35 struct ecore_ptt_pool {
  36         osal_list_t free_list;
  37         osal_spinlock_t lock; /* ptt synchronized access */
  38         struct ecore_ptt ptts[PXP_EXTERNAL_BAR_PF_WINDOW_NUM];
  39 };
  40
  41 enum _ecore_status_t ecore_ptt_pool_alloc(struct ecore_hwfn *p_hwfn)
  42 {
  43         struct ecore_ptt_pool *p_pool = OSAL_ALLOC(p_hwfn->p_dev,
  44                                                    GFP_KERNEL,
  45                                                    sizeof(*p_pool));
  46         int i;
  47
  48         if (!p_pool)
  49                 return ECORE_NOMEM;
  50
  51         OSAL_LIST_INIT(&p_pool->free_list);
  52         for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) {
  53                 p_pool->ptts[i].idx = i;
  54                 p_pool->ptts[i].pxp.offset = ECORE_BAR_INVALID_OFFSET;
  55                 p_pool->ptts[i].pxp.pretend.control = 0;
  56                 p_pool->ptts[i].hwfn_id = p_hwfn->my_id;
  57
  58                 /* There are special PTT entries that are taken only by design.
  59                  * The rest are added ot the list for general usage.
  60                  */
  61                 if (i >= RESERVED_PTT_MAX)
  62                         OSAL_LIST_PUSH_HEAD(&p_pool->ptts[i].list_entry,
  63                                             &p_pool->free_list);
  64         }
  65
  66         p_hwfn->p_ptt_pool = p_pool;
  67         OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_pool->lock);
  68         OSAL_SPIN_LOCK_INIT(&p_pool->lock);
  69
  70         return ECORE_SUCCESS;
  71 }
  72
  73 void ecore_ptt_invalidate(struct ecore_hwfn *p_hwfn)
  74 {
  75         struct ecore_ptt *p_ptt;
  76         int i;
  77
  78         for (i = 0; i < PXP_EXTERNAL_BAR_PF_WINDOW_NUM; i++) {
  79                 p_ptt = &p_hwfn->p_ptt_pool->ptts[i];
  80                 p_ptt->pxp.offset = ECORE_BAR_INVALID_OFFSET;
  81         }
  82 }
  83
  84 void ecore_ptt_pool_free(struct ecore_hwfn *p_hwfn)
  85 {
  86         if (p_hwfn->p_ptt_pool)
  87                 OSAL_SPIN_LOCK_DEALLOC(&p_hwfn->p_ptt_pool->lock);
  88         OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_ptt_pool);
  89         p_hwfn->p_ptt_pool = OSAL_NULL;
  90 }
  91
  92 struct ecore_ptt *ecore_ptt_acquire(struct ecore_hwfn *p_hwfn)
  93 {
  94         struct ecore_ptt *p_ptt;
  95         unsigned int i;
  96
  97         /* Take the free PTT from the list */
  98         for (i = 0; i < ECORE_BAR_ACQUIRE_TIMEOUT; i++) {
  99                 OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock);
 100                 if (!OSAL_LIST_IS_EMPTY(&p_hwfn->p_ptt_pool->free_list)) {
 101                         p_ptt = OSAL_LIST_FIRST_ENTRY(
 102                                                 &p_hwfn->p_ptt_pool->free_list,
 103                                                 struct ecore_ptt, list_entry);
 104                         OSAL_LIST_REMOVE_ENTRY(&p_ptt->list_entry,
 105                                                &p_hwfn->p_ptt_pool->free_list);
 106
 107                         OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
 108
 109                         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 110                                    "allocated ptt %d\n", p_ptt->idx);
 111
 112                         return p_ptt;
 113                 }
 114
 115                 OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
 116                 OSAL_MSLEEP(1);
 117         }
 118
 119         DP_NOTICE(p_hwfn, true,
 120                   "PTT acquire timeout - failed to allocate PTT\n");
 121         return OSAL_NULL;
 122 }
 123
 124 void ecore_ptt_release(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 125 {
 126         /* This PTT should not be set to pretend if it is being released */
 127         /* TODO - add some pretend sanity checks, to make sure pretend
 128          * isn't set on this ptt
 129          */
 130
 131         OSAL_SPIN_LOCK(&p_hwfn->p_ptt_pool->lock);
 132         OSAL_LIST_PUSH_HEAD(&p_ptt->list_entry, &p_hwfn->p_ptt_pool->free_list);
 133         OSAL_SPIN_UNLOCK(&p_hwfn->p_ptt_pool->lock);
 134 }
 135
 136 u32 ecore_ptt_get_hw_addr(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 137 {
 138         /* The HW is using DWORDS and we need to translate it to Bytes */
 139         return OSAL_LE32_TO_CPU(p_ptt->pxp.offset) << 2;
 140 }
 141
 142 static u32 ecore_ptt_config_addr(struct ecore_ptt *p_ptt)
 143 {
 144         return PXP_PF_WINDOW_ADMIN_PER_PF_START +
 145             p_ptt->idx * sizeof(struct pxp_ptt_entry);
 146 }
 147
 148 u32 ecore_ptt_get_bar_addr(struct ecore_ptt *p_ptt)
 149 {
 150         return PXP_EXTERNAL_BAR_PF_WINDOW_START +
 151             p_ptt->idx * PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE;
 152 }
 153
 154 void ecore_ptt_set_win(struct ecore_hwfn *p_hwfn,
 155                        struct ecore_ptt *p_ptt, u32 new_hw_addr)
 156 {
 157         u32 prev_hw_addr;
 158
 159         prev_hw_addr = ecore_ptt_get_hw_addr(p_hwfn, p_ptt);
 160
 161         if (new_hw_addr == prev_hw_addr)
 162                 return;
 163
 164         /* Update PTT entery in admin window */
 165         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 166                    "Updating PTT entry %d to offset 0x%x\n",
 167                    p_ptt->idx, new_hw_addr);
 168
 169         /* The HW is using DWORDS and the address is in Bytes */
 170         p_ptt->pxp.offset = OSAL_CPU_TO_LE32(new_hw_addr >> 2);
 171
 172         REG_WR(p_hwfn,
 173                ecore_ptt_config_addr(p_ptt) +
 174                OFFSETOF(struct pxp_ptt_entry, offset),
 175                OSAL_LE32_TO_CPU(p_ptt->pxp.offset));
 176 }
 177
 178 static u32 ecore_set_ptt(struct ecore_hwfn *p_hwfn,
 179                          struct ecore_ptt *p_ptt, u32 hw_addr)
 180 {
 181         u32 win_hw_addr = ecore_ptt_get_hw_addr(p_hwfn, p_ptt);
 182         u32 offset;
 183
 184         offset = hw_addr - win_hw_addr;
 185
 186         if (p_ptt->hwfn_id != p_hwfn->my_id)
 187                 DP_NOTICE(p_hwfn, true,
 188                           "ptt[%d] of hwfn[%02x] is used by hwfn[%02x]!\n",
 189                           p_ptt->idx, p_ptt->hwfn_id, p_hwfn->my_id);
 190
 191         /* Verify the address is within the window */
 192         if (hw_addr < win_hw_addr ||
 193             offset >= PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE) {
 194                 ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr);
 195                 offset = 0;
 196         }
 197
 198         return ecore_ptt_get_bar_addr(p_ptt) + offset;
 199 }
 200
 201 struct ecore_ptt *ecore_get_reserved_ptt(struct ecore_hwfn *p_hwfn,
 202                                          enum reserved_ptts ptt_idx)
 203 {
 204         if (ptt_idx >= RESERVED_PTT_MAX) {
 205                 DP_NOTICE(p_hwfn, true,
 206                           "Requested PTT %d is out of range\n", ptt_idx);
 207                 return OSAL_NULL;
 208         }
 209
 210         return &p_hwfn->p_ptt_pool->ptts[ptt_idx];
 211 }
 212
 213 static bool ecore_is_reg_fifo_empty(struct ecore_hwfn *p_hwfn,
 214                                     struct ecore_ptt *p_ptt)
 215 {
 216         bool is_empty = true;
 217         u32 bar_addr;
 218
 219         if (!p_hwfn->p_dev->chk_reg_fifo)
 220                 goto out;
 221
 222         /* ecore_rd() cannot be used here since it calls this function */
 223         bar_addr = ecore_set_ptt(p_hwfn, p_ptt, GRC_REG_TRACE_FIFO_VALID_DATA);
 224         is_empty = REG_RD(p_hwfn, bar_addr) == 0;
 225
 226 #ifndef ASIC_ONLY
 227         if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
 228                 OSAL_UDELAY(100);
 229 #endif
 230
 231 out:
 232         return is_empty;
 233 }
 234
 235 void ecore_wr(struct ecore_hwfn *p_hwfn,
 236               struct ecore_ptt *p_ptt, u32 hw_addr, u32 val)
 237 {
 238         bool prev_fifo_err;
 239         u32 bar_addr;
 240
 241         prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt);
 242
 243         bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr);
 244         REG_WR(p_hwfn, bar_addr, val);
 245         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 246                    "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n",
 247                    bar_addr, hw_addr, val);
 248
 249 #ifndef ASIC_ONLY
 250         if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
 251                 OSAL_UDELAY(100);
 252 #endif
 253
 254         OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt),
 255                   "reg_fifo err was caused by a call to ecore_wr(0x%x, 0x%x)\n",
 256                   hw_addr, val);
 257 }
 258
 259 u32 ecore_rd(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt, u32 hw_addr)
 260 {
 261         bool prev_fifo_err;
 262         u32 bar_addr, val;
 263
 264         prev_fifo_err = !ecore_is_reg_fifo_empty(p_hwfn, p_ptt);
 265
 266         bar_addr = ecore_set_ptt(p_hwfn, p_ptt, hw_addr);
 267         val = REG_RD(p_hwfn, bar_addr);
 268
 269         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 270                    "bar_addr 0x%x, hw_addr 0x%x, val 0x%x\n",
 271                    bar_addr, hw_addr, val);
 272
 273 #ifndef ASIC_ONLY
 274         if (CHIP_REV_IS_SLOW(p_hwfn->p_dev))
 275                 OSAL_UDELAY(100);
 276 #endif
 277
 278         OSAL_WARN(!prev_fifo_err && !ecore_is_reg_fifo_empty(p_hwfn, p_ptt),
 279                   "reg_fifo error was caused by a call to ecore_rd(0x%x)\n",
 280                   hw_addr);
 281
 282         return val;
 283 }
 284
 285 static void ecore_memcpy_hw(struct ecore_hwfn *p_hwfn,
 286                             struct ecore_ptt *p_ptt,
 287                             void *addr,
 288                             u32 hw_addr, osal_size_t n, bool to_device)
 289 {
 290         u32 dw_count, *host_addr, hw_offset;
 291         osal_size_t quota, done = 0;
 292         u32 OSAL_IOMEM *reg_addr;
 293
 294         while (done < n) {
 295                 quota = OSAL_MIN_T(osal_size_t, n - done,
 296                                    PXP_EXTERNAL_BAR_PF_WINDOW_SINGLE_SIZE);
 297
 298                 if (IS_PF(p_hwfn->p_dev)) {
 299                         ecore_ptt_set_win(p_hwfn, p_ptt, hw_addr + done);
 300                         hw_offset = ecore_ptt_get_bar_addr(p_ptt);
 301                 } else {
 302                         hw_offset = hw_addr + done;
 303                 }
 304
 305                 dw_count = quota / 4;
 306                 host_addr = (u32 *)((u8 *)addr + done);
 307                 reg_addr = (u32 OSAL_IOMEM *)OSAL_REG_ADDR(p_hwfn, hw_offset);
 308
 309                 if (to_device)
 310                         while (dw_count--)
 311                                 DIRECT_REG_WR(p_hwfn, reg_addr++, *host_addr++);
 312                 else
 313                         while (dw_count--)
 314                                 *host_addr++ = DIRECT_REG_RD(p_hwfn,
 315                                                              reg_addr++);
 316
 317                 done += quota;
 318         }
 319 }
 320
 321 void ecore_memcpy_from(struct ecore_hwfn *p_hwfn,
 322                        struct ecore_ptt *p_ptt,
 323                        void *dest, u32 hw_addr, osal_size_t n)
 324 {
 325         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 326                    "hw_addr 0x%x, dest %p hw_addr 0x%x, size %lu\n",
 327                    hw_addr, dest, hw_addr, (unsigned long)n);
 328
 329         ecore_memcpy_hw(p_hwfn, p_ptt, dest, hw_addr, n, false);
 330 }
 331
 332 void ecore_memcpy_to(struct ecore_hwfn *p_hwfn,
 333                      struct ecore_ptt *p_ptt,
 334                      u32 hw_addr, void *src, osal_size_t n)
 335 {
 336         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 337                    "hw_addr 0x%x, hw_addr 0x%x, src %p size %lu\n",
 338                    hw_addr, hw_addr, src, (unsigned long)n);
 339
 340         ecore_memcpy_hw(p_hwfn, p_ptt, src, hw_addr, n, true);
 341 }
 342
 343 void ecore_fid_pretend(struct ecore_hwfn *p_hwfn,
 344                        struct ecore_ptt *p_ptt, u16 fid)
 345 {
 346         u16 control = 0;
 347
 348         SET_FIELD(control, PXP_PRETEND_CMD_IS_CONCRETE, 1);
 349         SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_FUNCTION, 1);
 350
 351 /* Every pretend undos prev pretends, including previous port pretend */
 352
 353         SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0);
 354         SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0);
 355         SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
 356
 357         if (!GET_FIELD(fid, PXP_CONCRETE_FID_VFVALID))
 358                 fid = GET_FIELD(fid, PXP_CONCRETE_FID_PFID);
 359
 360         p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
 361         p_ptt->pxp.pretend.fid.concrete_fid.fid = OSAL_CPU_TO_LE16(fid);
 362
 363         REG_WR(p_hwfn,
 364                ecore_ptt_config_addr(p_ptt) +
 365                OFFSETOF(struct pxp_ptt_entry, pretend),
 366                         *(u32 *)&p_ptt->pxp.pretend);
 367 }
 368
 369 void ecore_port_pretend(struct ecore_hwfn *p_hwfn,
 370                         struct ecore_ptt *p_ptt, u8 port_id)
 371 {
 372         u16 control = 0;
 373
 374         SET_FIELD(control, PXP_PRETEND_CMD_PORT, port_id);
 375         SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 1);
 376         SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
 377         p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
 378
 379         REG_WR(p_hwfn,
 380                ecore_ptt_config_addr(p_ptt) +
 381                OFFSETOF(struct pxp_ptt_entry, pretend),
 382                         *(u32 *)&p_ptt->pxp.pretend);
 383 }
 384
 385 void ecore_port_unpretend(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 386 {
 387         u16 control = 0;
 388
 389         SET_FIELD(control, PXP_PRETEND_CMD_PORT, 0);
 390         SET_FIELD(control, PXP_PRETEND_CMD_USE_PORT, 0);
 391         SET_FIELD(control, PXP_PRETEND_CMD_PRETEND_PORT, 1);
 392
 393         p_ptt->pxp.pretend.control = OSAL_CPU_TO_LE16(control);
 394
 395         REG_WR(p_hwfn,
 396                ecore_ptt_config_addr(p_ptt) +
 397                OFFSETOF(struct pxp_ptt_entry, pretend),
 398                         *(u32 *)&p_ptt->pxp.pretend);
 399 }
 400
 401 u32 ecore_vfid_to_concrete(struct ecore_hwfn *p_hwfn, u8 vfid)
 402 {
 403         u32 concrete_fid = 0;
 404
 405         SET_FIELD(concrete_fid, PXP_CONCRETE_FID_PFID, p_hwfn->rel_pf_id);
 406         SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFID, vfid);
 407         SET_FIELD(concrete_fid, PXP_CONCRETE_FID_VFVALID, 1);
 408
 409         return concrete_fid;
 410 }
 411
 412 /* Not in use @DPDK
 413  * Ecore HW lock
 414  * =============
 415  * Although the implementation is ready, today we don't have any flow that
 416  * utliizes said locks - and we want to keep it this way.
 417  * If this changes, this needs to be revisted.
 418  */
 419
 420 /* Ecore DMAE
 421  * =============
 422  */
 423 static void ecore_dmae_opcode(struct ecore_hwfn *p_hwfn,
 424                               const u8 is_src_type_grc,
 425                               const u8 is_dst_type_grc,
 426                               struct ecore_dmae_params *p_params)
 427 {
 428         u16 opcode_b = 0;
 429         u32 opcode = 0;
 430
 431         /* Whether the source is the PCIe or the GRC.
 432          * 0- The source is the PCIe
 433          * 1- The source is the GRC.
 434          */
 435         opcode |= (is_src_type_grc ? DMAE_CMD_SRC_MASK_GRC
 436                    : DMAE_CMD_SRC_MASK_PCIE) << DMAE_CMD_SRC_SHIFT;
 437         opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_SRC_PF_ID_MASK) <<
 438             DMAE_CMD_SRC_PF_ID_SHIFT;
 439
 440         /* The destination of the DMA can be: 0-None 1-PCIe 2-GRC 3-None */
 441         opcode |= (is_dst_type_grc ? DMAE_CMD_DST_MASK_GRC
 442                    : DMAE_CMD_DST_MASK_PCIE) << DMAE_CMD_DST_SHIFT;
 443         opcode |= (p_hwfn->rel_pf_id & DMAE_CMD_DST_PF_ID_MASK) <<
 444             DMAE_CMD_DST_PF_ID_SHIFT;
 445
 446         /* DMAE_E4_TODO need to check which value to specifiy here. */
 447         /* opcode |= (!b_complete_to_host)<< DMAE_CMD_C_DST_SHIFT; */
 448
 449         /* Whether to write a completion word to the completion destination:
 450          * 0-Do not write a completion word
 451          * 1-Write the completion word
 452          */
 453         opcode |= DMAE_CMD_COMP_WORD_EN_MASK << DMAE_CMD_COMP_WORD_EN_SHIFT;
 454         opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK << DMAE_CMD_SRC_ADDR_RESET_SHIFT;
 455
 456         if (p_params->flags & ECORE_DMAE_FLAG_COMPLETION_DST)
 457                 opcode |= 1 << DMAE_CMD_COMP_FUNC_SHIFT;
 458
 459         /* swapping mode 3 - big endian there should be a define ifdefed in
 460          * the HSI somewhere. Since it is currently
 461          */
 462         opcode |= DMAE_CMD_ENDIANITY << DMAE_CMD_ENDIANITY_MODE_SHIFT;
 463
 464         opcode |= p_hwfn->port_id << DMAE_CMD_PORT_ID_SHIFT;
 465
 466         /* reset source address in next go */
 467         opcode |= DMAE_CMD_SRC_ADDR_RESET_MASK << DMAE_CMD_SRC_ADDR_RESET_SHIFT;
 468
 469         /* reset dest address in next go */
 470         opcode |= DMAE_CMD_DST_ADDR_RESET_MASK << DMAE_CMD_DST_ADDR_RESET_SHIFT;
 471
 472         /* SRC/DST VFID: all 1's - pf, otherwise VF id */
 473         if (p_params->flags & ECORE_DMAE_FLAG_VF_SRC) {
 474                 opcode |= (1 << DMAE_CMD_SRC_VF_ID_VALID_SHIFT);
 475                 opcode_b |= (p_params->src_vfid << DMAE_CMD_SRC_VF_ID_SHIFT);
 476         } else {
 477                 opcode_b |= (DMAE_CMD_SRC_VF_ID_MASK <<
 478                              DMAE_CMD_SRC_VF_ID_SHIFT);
 479         }
 480         if (p_params->flags & ECORE_DMAE_FLAG_VF_DST) {
 481                 opcode |= 1 << DMAE_CMD_DST_VF_ID_VALID_SHIFT;
 482                 opcode_b |= p_params->dst_vfid << DMAE_CMD_DST_VF_ID_SHIFT;
 483         } else {
 484                 opcode_b |= DMAE_CMD_DST_VF_ID_MASK << DMAE_CMD_DST_VF_ID_SHIFT;
 485         }
 486
 487         p_hwfn->dmae_info.p_dmae_cmd->opcode = OSAL_CPU_TO_LE32(opcode);
 488         p_hwfn->dmae_info.p_dmae_cmd->opcode_b = OSAL_CPU_TO_LE16(opcode_b);
 489 }
 490
 491 static u32 ecore_dmae_idx_to_go_cmd(u8 idx)
 492 {
 493         OSAL_BUILD_BUG_ON((DMAE_REG_GO_C31 - DMAE_REG_GO_C0) != 31 * 4);
 494
 495         /* All the DMAE 'go' registers form an array in internal memory */
 496         return DMAE_REG_GO_C0 + (idx << 2);
 497 }
 498
 499 static enum _ecore_status_t
 500 ecore_dmae_post_command(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt)
 501 {
 502         struct dmae_cmd *p_command = p_hwfn->dmae_info.p_dmae_cmd;
 503         u8 idx_cmd = p_hwfn->dmae_info.channel, i;
 504         enum _ecore_status_t ecore_status = ECORE_SUCCESS;
 505
 506         /* verify address is not OSAL_NULL */
 507         if ((((!p_command->dst_addr_lo) && (!p_command->dst_addr_hi)) ||
 508              ((!p_command->src_addr_lo) && (!p_command->src_addr_hi)))) {
 509                 DP_NOTICE(p_hwfn, true,
 510                           "source or destination address 0 idx_cmd=%d\n"
 511                           "opcode = [0x%08x,0x%04x] len=0x%x"
 512                           " src=0x%x:%x dst=0x%x:%x\n",
 513                           idx_cmd,
 514                           OSAL_LE32_TO_CPU(p_command->opcode),
 515                           OSAL_LE16_TO_CPU(p_command->opcode_b),
 516                           OSAL_LE16_TO_CPU(p_command->length_dw),
 517                           OSAL_LE32_TO_CPU(p_command->src_addr_hi),
 518                           OSAL_LE32_TO_CPU(p_command->src_addr_lo),
 519                           OSAL_LE32_TO_CPU(p_command->dst_addr_hi),
 520                           OSAL_LE32_TO_CPU(p_command->dst_addr_lo));
 521
 522                 return ECORE_INVAL;
 523         }
 524
 525         DP_VERBOSE(p_hwfn, ECORE_MSG_HW,
 526                    "Posting DMAE command [idx %d]: opcode = [0x%08x,0x%04x]"
 527                    "len=0x%x src=0x%x:%x dst=0x%x:%x\n",
 528                    idx_cmd,
 529                    OSAL_LE32_TO_CPU(p_command->opcode),
 530                    OSAL_LE16_TO_CPU(p_command->opcode_b),
 531                    OSAL_LE16_TO_CPU(p_command->length_dw),
 532                    OSAL_LE32_TO_CPU(p_command->src_addr_hi),
 533                    OSAL_LE32_TO_CPU(p_command->src_addr_lo),
 534                    OSAL_LE32_TO_CPU(p_command->dst_addr_hi),
 535                    OSAL_LE32_TO_CPU(p_command->dst_addr_lo));
 536
 537         /* Copy the command to DMAE - need to do it before every call
 538          * for source/dest address no reset.
 539          * The number of commands have been increased to 16 (previous was 14)
 540          * The first 9 DWs are the command registers, the 10 DW is the
 541          * GO register, and
 542          * the rest are result registers (which are read only by the client).
 543          */
 544         for (i = 0; i < DMAE_CMD_SIZE; i++) {
 545                 u32 data = (i < DMAE_CMD_SIZE_TO_FILL) ?
 546                     *(((u32 *)p_command) + i) : 0;
 547
 548                 ecore_wr(p_hwfn, p_ptt,
 549                          DMAE_REG_CMD_MEM +
 550                          (idx_cmd * DMAE_CMD_SIZE * sizeof(u32)) +
 551                          (i * sizeof(u32)), data);
 552         }
 553
 554         ecore_wr(p_hwfn, p_ptt,
 555                  ecore_dmae_idx_to_go_cmd(idx_cmd), DMAE_GO_VALUE);
 556
 557         return ecore_status;
 558 }
 559
 560 enum _ecore_status_t ecore_dmae_info_alloc(struct ecore_hwfn *p_hwfn)
 561 {
 562         dma_addr_t *p_addr = &p_hwfn->dmae_info.completion_word_phys_addr;
 563         struct dmae_cmd **p_cmd = &p_hwfn->dmae_info.p_dmae_cmd;
 564         u32 **p_buff = &p_hwfn->dmae_info.p_intermediate_buffer;
 565         u32 **p_comp = &p_hwfn->dmae_info.p_completion_word;
 566
 567         *p_comp = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr, sizeof(u32));
 568         if (*p_comp == OSAL_NULL) {
 569                 DP_NOTICE(p_hwfn, true,
 570                           "Failed to allocate `p_completion_word'\n");
 571                 goto err;
 572         }
 573
 574         p_addr = &p_hwfn->dmae_info.dmae_cmd_phys_addr;
 575         *p_cmd = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr,
 576                                          sizeof(struct dmae_cmd));
 577         if (*p_cmd == OSAL_NULL) {
 578                 DP_NOTICE(p_hwfn, true,
 579                           "Failed to allocate `struct dmae_cmd'\n");
 580                 goto err;
 581         }
 582
 583         p_addr = &p_hwfn->dmae_info.intermediate_buffer_phys_addr;
 584         *p_buff = OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, p_addr,
 585                                           sizeof(u32) * DMAE_MAX_RW_SIZE);
 586         if (*p_buff == OSAL_NULL) {
 587                 DP_NOTICE(p_hwfn, true,
 588                           "Failed to allocate `intermediate_buffer'\n");
 589                 goto err;
 590         }
 591
 592         p_hwfn->dmae_info.channel = p_hwfn->rel_pf_id;
 593
 594         return ECORE_SUCCESS;
 595 err:
 596         ecore_dmae_info_free(p_hwfn);
 597         return ECORE_NOMEM;
 598 }
 599
 600 void ecore_dmae_info_free(struct ecore_hwfn *p_hwfn)
 601 {
 602         dma_addr_t p_phys;
 603
 604         /* Just make sure no one is in the middle */
 605         OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
 606
 607         if (p_hwfn->dmae_info.p_completion_word != OSAL_NULL) {
 608                 p_phys = p_hwfn->dmae_info.completion_word_phys_addr;
 609                 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
 610                                        p_hwfn->dmae_info.p_completion_word,
 611                                        p_phys, sizeof(u32));
 612                 p_hwfn->dmae_info.p_completion_word = OSAL_NULL;
 613         }
 614
 615         if (p_hwfn->dmae_info.p_dmae_cmd != OSAL_NULL) {
 616                 p_phys = p_hwfn->dmae_info.dmae_cmd_phys_addr;
 617                 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
 618                                        p_hwfn->dmae_info.p_dmae_cmd,
 619                                        p_phys, sizeof(struct dmae_cmd));
 620                 p_hwfn->dmae_info.p_dmae_cmd = OSAL_NULL;
 621         }
 622
 623         if (p_hwfn->dmae_info.p_intermediate_buffer != OSAL_NULL) {
 624                 p_phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr;
 625                 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev,
 626                                        p_hwfn->dmae_info.p_intermediate_buffer,
 627                                        p_phys, sizeof(u32) * DMAE_MAX_RW_SIZE);
 628                 p_hwfn->dmae_info.p_intermediate_buffer = OSAL_NULL;
 629         }
 630
 631         OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
 632 }
 633
 634 static enum _ecore_status_t ecore_dmae_operation_wait(struct ecore_hwfn *p_hwfn)
 635 {
 636         u32 wait_cnt_limit = 10000, wait_cnt = 0;
 637         enum _ecore_status_t ecore_status = ECORE_SUCCESS;
 638
 639 #ifndef ASIC_ONLY
 640         u32 factor = (CHIP_REV_IS_EMUL(p_hwfn->p_dev) ?
 641                       ECORE_EMUL_FACTOR :
 642                       (CHIP_REV_IS_FPGA(p_hwfn->p_dev) ?
 643                        ECORE_FPGA_FACTOR : 1));
 644
 645         wait_cnt_limit *= factor;
 646 #endif
 647
 648         /* DMAE_E4_TODO : TODO check if we have to call any other function
 649          * other than BARRIER to sync the completion_word since we are not
 650          * using the volatile keyword for this
 651          */
 652         OSAL_BARRIER(p_hwfn->p_dev);
 653         while (*p_hwfn->dmae_info.p_completion_word != DMAE_COMPLETION_VAL) {
 654                 OSAL_UDELAY(DMAE_MIN_WAIT_TIME);
 655                 if (++wait_cnt > wait_cnt_limit) {
 656                         DP_NOTICE(p_hwfn->p_dev, ECORE_MSG_HW,
 657                                   "Timed-out waiting for operation to"
 658                                   " complete. Completion word is 0x%08x"
 659                                   " expected 0x%08x.\n",
 660                                   *p_hwfn->dmae_info.p_completion_word,
 661                                   DMAE_COMPLETION_VAL);
 662                         ecore_status = ECORE_TIMEOUT;
 663                         break;
 664                 }
 665                 /* to sync the completion_word since we are not
 666                  * using the volatile keyword for p_completion_word
 667                  */
 668                 OSAL_BARRIER(p_hwfn->p_dev);
 669         }
 670
 671         if (ecore_status == ECORE_SUCCESS)
 672                 *p_hwfn->dmae_info.p_completion_word = 0;
 673
 674         return ecore_status;
 675 }
 676
 677 static enum _ecore_status_t
 678 ecore_dmae_execute_sub_operation(struct ecore_hwfn *p_hwfn,
 679                                  struct ecore_ptt *p_ptt,
 680                                  u64 src_addr,
 681                                  u64 dst_addr,
 682                                  u8 src_type, u8 dst_type, u32 length_dw)
 683 {
 684         dma_addr_t phys = p_hwfn->dmae_info.intermediate_buffer_phys_addr;
 685         struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd;
 686         enum _ecore_status_t ecore_status = ECORE_SUCCESS;
 687
 688         switch (src_type) {
 689         case ECORE_DMAE_ADDRESS_GRC:
 690         case ECORE_DMAE_ADDRESS_HOST_PHYS:
 691                 cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(src_addr));
 692                 cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(src_addr));
 693                 break;
 694                 /* for virt source addresses we use the intermediate buffer. */
 695         case ECORE_DMAE_ADDRESS_HOST_VIRT:
 696                 cmd->src_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
 697                 cmd->src_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
 698                 OSAL_MEMCPY(&p_hwfn->dmae_info.p_intermediate_buffer[0],
 699                             (void *)(osal_uintptr_t)src_addr,
 700                             length_dw * sizeof(u32));
 701                 break;
 702         default:
 703                 return ECORE_INVAL;
 704         }
 705
 706         switch (dst_type) {
 707         case ECORE_DMAE_ADDRESS_GRC:
 708         case ECORE_DMAE_ADDRESS_HOST_PHYS:
 709                 cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(dst_addr));
 710                 cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(dst_addr));
 711                 break;
 712                 /* for virt destination address we use the intermediate buff. */
 713         case ECORE_DMAE_ADDRESS_HOST_VIRT:
 714                 cmd->dst_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
 715                 cmd->dst_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
 716                 break;
 717         default:
 718                 return ECORE_INVAL;
 719         }
 720
 721         cmd->length_dw = OSAL_CPU_TO_LE16((u16)length_dw);
 722
 723         if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT ||
 724             src_type == ECORE_DMAE_ADDRESS_HOST_PHYS)
 725                 OSAL_DMA_SYNC(p_hwfn->p_dev,
 726                               (void *)HILO_U64(cmd->src_addr_hi,
 727                                                cmd->src_addr_lo),
 728                               length_dw * sizeof(u32), false);
 729
 730         ecore_dmae_post_command(p_hwfn, p_ptt);
 731
 732         ecore_status = ecore_dmae_operation_wait(p_hwfn);
 733
 734         /* TODO - is it true ? */
 735         if (src_type == ECORE_DMAE_ADDRESS_HOST_VIRT ||
 736             src_type == ECORE_DMAE_ADDRESS_HOST_PHYS)
 737                 OSAL_DMA_SYNC(p_hwfn->p_dev,
 738                               (void *)HILO_U64(cmd->src_addr_hi,
 739                                                cmd->src_addr_lo),
 740                               length_dw * sizeof(u32), true);
 741
 742         if (ecore_status != ECORE_SUCCESS) {
 743                 DP_NOTICE(p_hwfn, ECORE_MSG_HW,
 744                           "ecore_dmae_host2grc: Wait Failed. source_addr"
 745                           " 0x%lx, grc_addr 0x%lx, size_in_dwords 0x%x\n",
 746                           (unsigned long)src_addr, (unsigned long)dst_addr,
 747                           length_dw);
 748                 return ecore_status;
 749         }
 750
 751         if (dst_type == ECORE_DMAE_ADDRESS_HOST_VIRT)
 752                 OSAL_MEMCPY((void *)(osal_uintptr_t)(dst_addr),
 753                             &p_hwfn->dmae_info.p_intermediate_buffer[0],
 754                             length_dw * sizeof(u32));
 755
 756         return ECORE_SUCCESS;
 757 }
 758
 759 static enum _ecore_status_t
 760 ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn,
 761                            struct ecore_ptt *p_ptt,
 762                            u64 src_addr,
 763                            u64 dst_addr,
 764                            u8 src_type,
 765                            u8 dst_type,
 766                            u32 size_in_dwords,
 767                            struct ecore_dmae_params *p_params)
 768 {
 769         dma_addr_t phys = p_hwfn->dmae_info.completion_word_phys_addr;
 770         u16 length_cur = 0, i = 0, cnt_split = 0, length_mod = 0;
 771         struct dmae_cmd *cmd = p_hwfn->dmae_info.p_dmae_cmd;
 772         u64 src_addr_split = 0, dst_addr_split = 0;
 773         u16 length_limit = DMAE_MAX_RW_SIZE;
 774         enum _ecore_status_t ecore_status = ECORE_SUCCESS;
 775         u32 offset = 0;
 776
 777         ecore_dmae_opcode(p_hwfn,
 778                           (src_type == ECORE_DMAE_ADDRESS_GRC),
 779                           (dst_type == ECORE_DMAE_ADDRESS_GRC), p_params);
 780
 781         cmd->comp_addr_lo = OSAL_CPU_TO_LE32(DMA_LO(phys));
 782         cmd->comp_addr_hi = OSAL_CPU_TO_LE32(DMA_HI(phys));
 783         cmd->comp_val = OSAL_CPU_TO_LE32(DMAE_COMPLETION_VAL);
 784
 785         /* Check if the grc_addr is valid like < MAX_GRC_OFFSET */
 786         cnt_split = size_in_dwords / length_limit;
 787         length_mod = size_in_dwords % length_limit;
 788
 789         src_addr_split = src_addr;
 790         dst_addr_split = dst_addr;
 791
 792         for (i = 0; i <= cnt_split; i++) {
 793                 offset = length_limit * i;
 794
 795                 if (!(p_params->flags & ECORE_DMAE_FLAG_RW_REPL_SRC)) {
 796                         if (src_type == ECORE_DMAE_ADDRESS_GRC)
 797                                 src_addr_split = src_addr + offset;
 798                         else
 799                                 src_addr_split = src_addr + (offset * 4);
 800                 }
 801
 802                 if (dst_type == ECORE_DMAE_ADDRESS_GRC)
 803                         dst_addr_split = dst_addr + offset;
 804                 else
 805                         dst_addr_split = dst_addr + (offset * 4);
 806
 807                 length_cur = (cnt_split == i) ? length_mod : length_limit;
 808
 809                 /* might be zero on last iteration */
 810                 if (!length_cur)
 811                         continue;
 812
 813                 ecore_status = ecore_dmae_execute_sub_operation(p_hwfn,
 814                                                                 p_ptt,
 815                                                                 src_addr_split,
 816                                                                 dst_addr_split,
 817                                                                 src_type,
 818                                                                 dst_type,
 819                                                                 length_cur);
 820                 if (ecore_status != ECORE_SUCCESS) {
 821                         DP_NOTICE(p_hwfn, false,
 822                                   "ecore_dmae_execute_sub_operation Failed"
 823                                   " with error 0x%x. source_addr 0x%lx,"
 824                                   " dest addr 0x%lx, size_in_dwords 0x%x\n",
 825                                   ecore_status, (unsigned long)src_addr,
 826                                   (unsigned long)dst_addr, length_cur);
 827
 828                         ecore_hw_err_notify(p_hwfn, ECORE_HW_ERR_DMAE_FAIL);
 829                         break;
 830                 }
 831         }
 832
 833         return ecore_status;
 834 }
 835
 836 enum _ecore_status_t
 837 ecore_dmae_host2grc(struct ecore_hwfn *p_hwfn,
 838                     struct ecore_ptt *p_ptt,
 839                     u64 source_addr,
 840                     u32 grc_addr, u32 size_in_dwords, u32 flags)
 841 {
 842         u32 grc_addr_in_dw = grc_addr / sizeof(u32);
 843         struct ecore_dmae_params params;
 844         enum _ecore_status_t rc;
 845
 846         OSAL_MEMSET(&params, 0, sizeof(struct ecore_dmae_params));
 847         params.flags = flags;
 848
 849         OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
 850
 851         rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr,
 852                                         grc_addr_in_dw,
 853                                         ECORE_DMAE_ADDRESS_HOST_VIRT,
 854                                         ECORE_DMAE_ADDRESS_GRC,
 855                                         size_in_dwords, &params);
 856
 857         OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
 858
 859         return rc;
 860 }
 861
 862 enum _ecore_status_t
 863 ecore_dmae_grc2host(struct ecore_hwfn *p_hwfn,
 864                     struct ecore_ptt *p_ptt,
 865                     u32 grc_addr,
 866                     dma_addr_t dest_addr, u32 size_in_dwords, u32 flags)
 867 {
 868         u32 grc_addr_in_dw = grc_addr / sizeof(u32);
 869         struct ecore_dmae_params params;
 870         enum _ecore_status_t rc;
 871
 872         OSAL_MEMSET(&params, 0, sizeof(struct ecore_dmae_params));
 873         params.flags = flags;
 874
 875         OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
 876
 877         rc = ecore_dmae_execute_command(p_hwfn, p_ptt, grc_addr_in_dw,
 878                                         dest_addr, ECORE_DMAE_ADDRESS_GRC,
 879                                         ECORE_DMAE_ADDRESS_HOST_VIRT,
 880                                         size_in_dwords, &params);
 881
 882         OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
 883
 884         return rc;
 885 }
 886
 887 enum _ecore_status_t
 888 ecore_dmae_host2host(struct ecore_hwfn *p_hwfn,
 889                      struct ecore_ptt *p_ptt,
 890                      dma_addr_t source_addr,
 891                      dma_addr_t dest_addr,
 892                      u32 size_in_dwords, struct ecore_dmae_params *p_params)
 893 {
 894         enum _ecore_status_t rc;
 895
 896         OSAL_MUTEX_ACQUIRE(&p_hwfn->dmae_info.mutex);
 897
 898         rc = ecore_dmae_execute_command(p_hwfn, p_ptt, source_addr,
 899                                         dest_addr,
 900                                         ECORE_DMAE_ADDRESS_HOST_PHYS,
 901                                         ECORE_DMAE_ADDRESS_HOST_PHYS,
 902                                         size_in_dwords, p_params);
 903
 904         OSAL_MUTEX_RELEASE(&p_hwfn->dmae_info.mutex);
 905
 906         return rc;
 907 }
 908
 909 u16 ecore_get_qm_pq(struct ecore_hwfn *p_hwfn,
 910                     enum protocol_type proto,
 911                     union ecore_qm_pq_params *p_params)
 912 {
 913         u16 pq_id = 0;
 914
 915         if ((proto == PROTOCOLID_CORE ||
 916              proto == PROTOCOLID_ETH) && !p_params) {
 917                 DP_NOTICE(p_hwfn, true,
 918                           "Protocol %d received NULL PQ params\n", proto);
 919                 return 0;
 920         }
 921
 922         switch (proto) {
 923         case PROTOCOLID_CORE:
 924                 if (p_params->core.tc == LB_TC)
 925                         pq_id = p_hwfn->qm_info.pure_lb_pq;
 926                 else if (p_params->core.tc == OOO_LB_TC)
 927                         pq_id = p_hwfn->qm_info.ooo_pq;
 928                 else
 929                         pq_id = p_hwfn->qm_info.offload_pq;
 930                 break;
 931         case PROTOCOLID_ETH:
 932                 pq_id = p_params->eth.tc;
 933                 /* TODO - multi-CoS for VFs? */
 934                 if (p_params->eth.is_vf)
 935                         pq_id += p_hwfn->qm_info.vf_queues_offset +
 936                             p_params->eth.vf_id;
 937                 break;
 938         default:
 939                 pq_id = 0;
 940         }
 941
 942         pq_id = CM_TX_PQ_BASE + pq_id + RESC_START(p_hwfn, ECORE_PQ);
 943
 944         return pq_id;
 945 }
 946
 947 void ecore_hw_err_notify(struct ecore_hwfn *p_hwfn,
 948                          enum ecore_hw_err_type err_type)
 949 {
 950         /* Fan failure cannot be masked by handling of another HW error */
 951         if (p_hwfn->p_dev->recov_in_prog && err_type != ECORE_HW_ERR_FAN_FAIL) {
 952                 DP_VERBOSE(p_hwfn, ECORE_MSG_DRV,
 953                            "Recovery is in progress."
 954                            "Avoid notifying about HW error %d.\n",
 955                            err_type);
 956                 return;
 957         }
 958
 959         OSAL_HW_ERROR_OCCURRED(p_hwfn, err_type);
 960 }