drivers/raw/ifpga_rawdev/base/ifpga_fme_iperf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2018 Intel Corporation
   3  */
   4
   5 #include "ifpga_feature_dev.h"
   6
   7 #define PERF_OBJ_ROOT_ID        0xff
   8
   9 static int fme_iperf_get_clock(struct ifpga_fme_hw *fme, u64 *clock)
  10 {
  11         struct feature_fme_iperf *iperf;
  12         struct feature_fme_ifpmon_clk_ctr clk;
  13
  14         iperf = get_fme_feature_ioaddr_by_index(fme,
  15                                                 FME_FEATURE_ID_GLOBAL_IPERF);
  16         clk.afu_interf_clock = readq(&iperf->clk);
  17
  18         *clock = clk.afu_interf_clock;
  19         return 0;
  20 }
  21
  22 static int fme_iperf_get_revision(struct ifpga_fme_hw *fme, u64 *revision)
  23 {
  24         struct feature_fme_iperf *iperf;
  25         struct feature_header header;
  26
  27         iperf = get_fme_feature_ioaddr_by_index(fme,
  28                                                 FME_FEATURE_ID_GLOBAL_IPERF);
  29         header.csr = readq(&iperf->header);
  30         *revision = header.revision;
  31
  32         return 0;
  33 }
  34
  35 static int fme_iperf_get_cache_freeze(struct ifpga_fme_hw *fme, u64 *freeze)
  36 {
  37         struct feature_fme_iperf *iperf;
  38         struct feature_fme_ifpmon_ch_ctl ctl;
  39
  40         iperf = get_fme_feature_ioaddr_by_index(fme,
  41                                                 FME_FEATURE_ID_GLOBAL_IPERF);
  42         ctl.csr = readq(&iperf->ch_ctl);
  43         *freeze = (u64)ctl.freeze;
  44         return 0;
  45 }
  46
  47 static int fme_iperf_set_cache_freeze(struct ifpga_fme_hw *fme, u64 freeze)
  48 {
  49         struct feature_fme_iperf *iperf;
  50         struct feature_fme_ifpmon_ch_ctl ctl;
  51         bool state;
  52
  53         state = !!freeze;
  54
  55         spinlock_lock(&fme->lock);
  56         iperf = get_fme_feature_ioaddr_by_index(fme,
  57                                                 FME_FEATURE_ID_GLOBAL_IPERF);
  58         ctl.csr = readq(&iperf->ch_ctl);
  59         ctl.freeze = state;
  60         writeq(ctl.csr, &iperf->ch_ctl);
  61         spinlock_unlock(&fme->lock);
  62
  63         return 0;
  64 }
  65
  66 #define IPERF_TIMEOUT   30
  67
  68 static u64 read_cache_counter(struct ifpga_fme_hw *fme,
  69                               u8 channel, enum iperf_cache_events event)
  70 {
  71         struct feature_fme_iperf *iperf;
  72         struct feature_fme_ifpmon_ch_ctl ctl;
  73         struct feature_fme_ifpmon_ch_ctr ctr0, ctr1;
  74         u64 counter;
  75
  76         spinlock_lock(&fme->lock);
  77         iperf = get_fme_feature_ioaddr_by_index(fme,
  78                                                 FME_FEATURE_ID_GLOBAL_IPERF);
  79
  80         /* set channel access type and cache event code. */
  81         ctl.csr = readq(&iperf->ch_ctl);
  82         ctl.cci_chsel = channel;
  83         ctl.cache_event = event;
  84         writeq(ctl.csr, &iperf->ch_ctl);
  85
  86         /* check the event type in the counter registers */
  87         ctr0.event_code = event;
  88
  89         if (fpga_wait_register_field(event_code, ctr0,
  90                                      &iperf->ch_ctr0, IPERF_TIMEOUT, 1)) {
  91                 dev_err(fme, "timeout, unmatched cache event type in counter registers.\n");
  92                 spinlock_unlock(&fme->lock);
  93                 return -ETIMEDOUT;
  94         }
  95
  96         ctr0.csr = readq(&iperf->ch_ctr0);
  97         ctr1.csr = readq(&iperf->ch_ctr1);
  98         counter = ctr0.cache_counter + ctr1.cache_counter;
  99         spinlock_unlock(&fme->lock);
 100
 101         return counter;
 102 }
 103
 104 #define CACHE_SHOW(name, type, event)                                   \
 105 static int fme_iperf_get_cache_##name(struct ifpga_fme_hw *fme,         \
 106                                         u64 *counter)                   \
 107 {                                                                       \
 108         *counter = read_cache_counter(fme, type, event);                \
 109         return 0;                                                       \
 110 }
 111
 112 CACHE_SHOW(read_hit, CACHE_CHANNEL_RD, IPERF_CACHE_RD_HIT);
 113 CACHE_SHOW(read_miss, CACHE_CHANNEL_RD, IPERF_CACHE_RD_MISS);
 114 CACHE_SHOW(write_hit, CACHE_CHANNEL_WR, IPERF_CACHE_WR_HIT);
 115 CACHE_SHOW(write_miss, CACHE_CHANNEL_WR, IPERF_CACHE_WR_MISS);
 116 CACHE_SHOW(hold_request, CACHE_CHANNEL_RD, IPERF_CACHE_HOLD_REQ);
 117 CACHE_SHOW(tx_req_stall, CACHE_CHANNEL_RD, IPERF_CACHE_TX_REQ_STALL);
 118 CACHE_SHOW(rx_req_stall, CACHE_CHANNEL_RD, IPERF_CACHE_RX_REQ_STALL);
 119 CACHE_SHOW(rx_eviction, CACHE_CHANNEL_RD, IPERF_CACHE_EVICTIONS);
 120 CACHE_SHOW(data_write_port_contention, CACHE_CHANNEL_WR,
 121            IPERF_CACHE_DATA_WR_PORT_CONTEN);
 122 CACHE_SHOW(tag_write_port_contention, CACHE_CHANNEL_WR,
 123            IPERF_CACHE_TAG_WR_PORT_CONTEN);
 124
 125 static int fme_iperf_get_vtd_freeze(struct ifpga_fme_hw *fme, u64 *freeze)
 126 {
 127         struct feature_fme_ifpmon_vtd_ctl ctl;
 128         struct feature_fme_iperf *iperf;
 129
 130         iperf = get_fme_feature_ioaddr_by_index(fme,
 131                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 132         ctl.csr = readq(&iperf->vtd_ctl);
 133         *freeze = (u64)ctl.freeze;
 134
 135         return 0;
 136 }
 137
 138 static int fme_iperf_set_vtd_freeze(struct ifpga_fme_hw *fme, u64 freeze)
 139 {
 140         struct feature_fme_ifpmon_vtd_ctl ctl;
 141         struct feature_fme_iperf *iperf;
 142         bool state;
 143
 144         state = !!freeze;
 145
 146         spinlock_lock(&fme->lock);
 147         iperf = get_fme_feature_ioaddr_by_index(fme,
 148                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 149         ctl.csr = readq(&iperf->vtd_ctl);
 150         ctl.freeze = state;
 151         writeq(ctl.csr, &iperf->vtd_ctl);
 152         spinlock_unlock(&fme->lock);
 153
 154         return 0;
 155 }
 156
 157 static u64 read_iommu_sip_counter(struct ifpga_fme_hw *fme,
 158                                   enum iperf_vtd_sip_events event)
 159 {
 160         struct feature_fme_ifpmon_vtd_sip_ctl sip_ctl;
 161         struct feature_fme_ifpmon_vtd_sip_ctr sip_ctr;
 162         struct feature_fme_iperf *iperf;
 163         u64 counter;
 164
 165         spinlock_lock(&fme->lock);
 166         iperf = get_fme_feature_ioaddr_by_index(fme,
 167                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 168         sip_ctl.csr = readq(&iperf->vtd_sip_ctl);
 169         sip_ctl.vtd_evtcode = event;
 170         writeq(sip_ctl.csr, &iperf->vtd_sip_ctl);
 171
 172         sip_ctr.event_code = event;
 173
 174         if (fpga_wait_register_field(event_code, sip_ctr,
 175                                      &iperf->vtd_sip_ctr, IPERF_TIMEOUT, 1)) {
 176                 dev_err(fme, "timeout, unmatched VTd SIP event type in counter registers\n");
 177                 spinlock_unlock(&fme->lock);
 178                 return -ETIMEDOUT;
 179         }
 180
 181         sip_ctr.csr = readq(&iperf->vtd_sip_ctr);
 182         counter = sip_ctr.vtd_counter;
 183         spinlock_unlock(&fme->lock);
 184
 185         return counter;
 186 }
 187
 188 #define VTD_SIP_SHOW(name, event)                                       \
 189 static int fme_iperf_get_vtd_sip_##name(struct ifpga_fme_hw *fme,       \
 190                                                 u64 *counter)           \
 191 {                                                                       \
 192         *counter = read_iommu_sip_counter(fme, event);                  \
 193         return 0;                                                       \
 194 }
 195
 196 VTD_SIP_SHOW(iotlb_4k_hit, IPERF_VTD_SIP_IOTLB_4K_HIT);
 197 VTD_SIP_SHOW(iotlb_2m_hit, IPERF_VTD_SIP_IOTLB_2M_HIT);
 198 VTD_SIP_SHOW(iotlb_1g_hit, IPERF_VTD_SIP_IOTLB_1G_HIT);
 199 VTD_SIP_SHOW(slpwc_l3_hit, IPERF_VTD_SIP_SLPWC_L3_HIT);
 200 VTD_SIP_SHOW(slpwc_l4_hit, IPERF_VTD_SIP_SLPWC_L4_HIT);
 201 VTD_SIP_SHOW(rcc_hit, IPERF_VTD_SIP_RCC_HIT);
 202 VTD_SIP_SHOW(iotlb_4k_miss, IPERF_VTD_SIP_IOTLB_4K_MISS);
 203 VTD_SIP_SHOW(iotlb_2m_miss, IPERF_VTD_SIP_IOTLB_2M_MISS);
 204 VTD_SIP_SHOW(iotlb_1g_miss, IPERF_VTD_SIP_IOTLB_1G_MISS);
 205 VTD_SIP_SHOW(slpwc_l3_miss, IPERF_VTD_SIP_SLPWC_L3_MISS);
 206 VTD_SIP_SHOW(slpwc_l4_miss, IPERF_VTD_SIP_SLPWC_L4_MISS);
 207 VTD_SIP_SHOW(rcc_miss, IPERF_VTD_SIP_RCC_MISS);
 208
 209 static u64 read_iommu_counter(struct ifpga_fme_hw *fme, u8 port_id,
 210                               enum iperf_vtd_events base_event)
 211 {
 212         struct feature_fme_ifpmon_vtd_ctl ctl;
 213         struct feature_fme_ifpmon_vtd_ctr ctr;
 214         struct feature_fme_iperf *iperf;
 215         enum iperf_vtd_events event = base_event + port_id;
 216         u64 counter;
 217
 218         spinlock_lock(&fme->lock);
 219         iperf = get_fme_feature_ioaddr_by_index(fme,
 220                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 221         ctl.csr = readq(&iperf->vtd_ctl);
 222         ctl.vtd_evtcode = event;
 223         writeq(ctl.csr, &iperf->vtd_ctl);
 224
 225         ctr.event_code = event;
 226
 227         if (fpga_wait_register_field(event_code, ctr,
 228                                      &iperf->vtd_ctr, IPERF_TIMEOUT, 1)) {
 229                 dev_err(fme, "timeout, unmatched VTd event type in counter registers.\n");
 230                 spinlock_unlock(&fme->lock);
 231                 return -ETIMEDOUT;
 232         }
 233
 234         ctr.csr = readq(&iperf->vtd_ctr);
 235         counter = ctr.vtd_counter;
 236         spinlock_unlock(&fme->lock);
 237
 238         return counter;
 239 }
 240
 241 #define VTD_PORT_SHOW(name, base_event)                                 \
 242 static int fme_iperf_get_vtd_port_##name(struct ifpga_fme_hw *fme,      \
 243                                 u8 port_id, u64 *counter)               \
 244 {                                                                       \
 245         *counter = read_iommu_counter(fme, port_id, base_event);        \
 246         return 0;                                                       \
 247 }
 248
 249 VTD_PORT_SHOW(read_transaction, IPERF_VTD_AFU_MEM_RD_TRANS);
 250 VTD_PORT_SHOW(write_transaction, IPERF_VTD_AFU_MEM_WR_TRANS);
 251 VTD_PORT_SHOW(devtlb_read_hit, IPERF_VTD_AFU_DEVTLB_RD_HIT);
 252 VTD_PORT_SHOW(devtlb_write_hit, IPERF_VTD_AFU_DEVTLB_WR_HIT);
 253 VTD_PORT_SHOW(devtlb_4k_fill, IPERF_VTD_DEVTLB_4K_FILL);
 254 VTD_PORT_SHOW(devtlb_2m_fill, IPERF_VTD_DEVTLB_2M_FILL);
 255 VTD_PORT_SHOW(devtlb_1g_fill, IPERF_VTD_DEVTLB_1G_FILL);
 256
 257 static bool fabric_pobj_is_enabled(u8 port_id, struct feature_fme_iperf *iperf)
 258 {
 259         struct feature_fme_ifpmon_fab_ctl ctl;
 260
 261         ctl.csr = readq(&iperf->fab_ctl);
 262
 263         if (ctl.port_filter == FAB_DISABLE_FILTER)
 264                 return port_id == PERF_OBJ_ROOT_ID;
 265
 266         return port_id == ctl.port_id;
 267 }
 268
 269 static u64 read_fabric_counter(struct ifpga_fme_hw *fme, u8 port_id,
 270                                enum iperf_fab_events fab_event)
 271 {
 272         struct feature_fme_ifpmon_fab_ctl ctl;
 273         struct feature_fme_ifpmon_fab_ctr ctr;
 274         struct feature_fme_iperf *iperf;
 275         u64 counter = 0;
 276
 277         spinlock_lock(&fme->lock);
 278         iperf = get_fme_feature_ioaddr_by_index(fme,
 279                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 280
 281         /* if it is disabled, force the counter to return zero. */
 282         if (!fabric_pobj_is_enabled(port_id, iperf))
 283                 goto exit;
 284
 285         ctl.csr = readq(&iperf->fab_ctl);
 286         ctl.fab_evtcode = fab_event;
 287         writeq(ctl.csr, &iperf->fab_ctl);
 288
 289         ctr.event_code = fab_event;
 290
 291         if (fpga_wait_register_field(event_code, ctr,
 292                                      &iperf->fab_ctr, IPERF_TIMEOUT, 1)) {
 293                 dev_err(fme, "timeout, unmatched VTd event type in counter registers.\n");
 294                 spinlock_unlock(&fme->lock);
 295                 return -ETIMEDOUT;
 296         }
 297
 298         ctr.csr = readq(&iperf->fab_ctr);
 299         counter = ctr.fab_cnt;
 300 exit:
 301         spinlock_unlock(&fme->lock);
 302         return counter;
 303 }
 304
 305 #define FAB_PORT_SHOW(name, event)                                      \
 306 static int fme_iperf_get_fab_port_##name(struct ifpga_fme_hw *fme,      \
 307                                 u8 port_id, u64 *counter)               \
 308 {                                                                       \
 309         *counter = read_fabric_counter(fme, port_id, event);            \
 310         return 0;                                                       \
 311 }
 312
 313 FAB_PORT_SHOW(pcie0_read, IPERF_FAB_PCIE0_RD);
 314 FAB_PORT_SHOW(pcie0_write, IPERF_FAB_PCIE0_WR);
 315 FAB_PORT_SHOW(pcie1_read, IPERF_FAB_PCIE1_RD);
 316 FAB_PORT_SHOW(pcie1_write, IPERF_FAB_PCIE1_WR);
 317 FAB_PORT_SHOW(upi_read, IPERF_FAB_UPI_RD);
 318 FAB_PORT_SHOW(upi_write, IPERF_FAB_UPI_WR);
 319 FAB_PORT_SHOW(mmio_read, IPERF_FAB_MMIO_RD);
 320 FAB_PORT_SHOW(mmio_write, IPERF_FAB_MMIO_WR);
 321
 322 static int fme_iperf_get_fab_port_enable(struct ifpga_fme_hw *fme,
 323                                          u8 port_id, u64 *enable)
 324 {
 325         struct feature_fme_iperf *iperf;
 326         int status;
 327
 328         iperf = get_fme_feature_ioaddr_by_index(fme,
 329                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 330
 331         status = fabric_pobj_is_enabled(port_id, iperf);
 332         *enable = (u64)status;
 333
 334         return 0;
 335 }
 336
 337 /*
 338  * If enable one port or all port event counter in fabric, other
 339  * fabric event counter originally enabled will be disable automatically.
 340  */
 341 static int fme_iperf_set_fab_port_enable(struct ifpga_fme_hw *fme,
 342                                          u8 port_id, u64 enable)
 343 {
 344         struct feature_fme_ifpmon_fab_ctl ctl;
 345         struct feature_fme_iperf *iperf;
 346         bool state;
 347
 348         state = !!enable;
 349
 350         if (!state)
 351                 return -EINVAL;
 352
 353         iperf = get_fme_feature_ioaddr_by_index(fme,
 354                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 355
 356         /* if it is already enabled. */
 357         if (fabric_pobj_is_enabled(port_id, iperf))
 358                 return 0;
 359
 360         spinlock_lock(&fme->lock);
 361         ctl.csr = readq(&iperf->fab_ctl);
 362         if (port_id == PERF_OBJ_ROOT_ID) {
 363                 ctl.port_filter = FAB_DISABLE_FILTER;
 364         } else {
 365                 ctl.port_filter = FAB_ENABLE_FILTER;
 366                 ctl.port_id = port_id;
 367         }
 368
 369         writeq(ctl.csr, &iperf->fab_ctl);
 370         spinlock_unlock(&fme->lock);
 371
 372         return 0;
 373 }
 374
 375 static int fme_iperf_get_fab_freeze(struct ifpga_fme_hw *fme, u64 *freeze)
 376 {
 377         struct feature_fme_iperf *iperf;
 378         struct feature_fme_ifpmon_fab_ctl ctl;
 379
 380         iperf = get_fme_feature_ioaddr_by_index(fme,
 381                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 382         ctl.csr = readq(&iperf->fab_ctl);
 383         *freeze = (u64)ctl.freeze;
 384
 385         return 0;
 386 }
 387
 388 static int fme_iperf_set_fab_freeze(struct ifpga_fme_hw *fme, u64 freeze)
 389 {
 390         struct feature_fme_iperf *iperf;
 391         struct feature_fme_ifpmon_fab_ctl ctl;
 392         bool state;
 393
 394         state = !!freeze;
 395
 396         spinlock_lock(&fme->lock);
 397         iperf = get_fme_feature_ioaddr_by_index(fme,
 398                                                 FME_FEATURE_ID_GLOBAL_IPERF);
 399         ctl.csr = readq(&iperf->fab_ctl);
 400         ctl.freeze = state;
 401         writeq(ctl.csr, &iperf->fab_ctl);
 402         spinlock_unlock(&fme->lock);
 403
 404         return 0;
 405 }
 406
 407 #define PERF_MAX_PORT_NUM       1
 408 #define FME_IPERF_CAP_IOMMU     0x1
 409
 410 static int fme_global_iperf_init(struct feature *feature)
 411 {
 412         struct ifpga_fme_hw *fme;
 413         struct feature_fme_header *fme_hdr;
 414         struct feature_fme_capability fme_capability;
 415
 416         dev_info(NULL, "FME global_iperf Init.\n");
 417
 418         fme = (struct ifpga_fme_hw *)feature->parent;
 419         fme_hdr = get_fme_feature_ioaddr_by_index(fme, FME_FEATURE_ID_HEADER);
 420
 421         /* check if iommu is not supported on this device. */
 422         fme_capability.csr = readq(&fme_hdr->capability);
 423         dev_info(NULL, "FME HEAD fme_capability %llx.\n",
 424                  (unsigned long long)fme_hdr->capability.csr);
 425
 426         if (fme_capability.iommu_support)
 427                 feature->cap |= FME_IPERF_CAP_IOMMU;
 428
 429         return 0;
 430 }
 431
 432 static void fme_global_iperf_uinit(struct feature *feature)
 433 {
 434         UNUSED(feature);
 435
 436         dev_info(NULL, "FME global_iperf UInit.\n");
 437 }
 438
 439 static int fme_iperf_root_get_prop(struct feature *feature,
 440                                    struct feature_prop *prop)
 441 {
 442         struct ifpga_fme_hw *fme = feature->parent;
 443         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 444         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 445
 446         if (sub != PERF_PROP_SUB_UNUSED)
 447                 return -ENOENT;
 448
 449         switch (id) {
 450         case 0x1: /* CLOCK */
 451                 return fme_iperf_get_clock(fme, &prop->data);
 452         case 0x2: /* REVISION */
 453                 return fme_iperf_get_revision(fme, &prop->data);
 454         }
 455
 456         return -ENOENT;
 457 }
 458
 459 static int fme_iperf_cache_get_prop(struct feature *feature,
 460                                     struct feature_prop *prop)
 461 {
 462         struct ifpga_fme_hw *fme = feature->parent;
 463         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 464         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 465
 466         if (sub != PERF_PROP_SUB_UNUSED)
 467                 return -ENOENT;
 468
 469         switch (id) {
 470         case 0x1: /* FREEZE */
 471                 return fme_iperf_get_cache_freeze(fme, &prop->data);
 472         case 0x2: /* READ_HIT */
 473                 return fme_iperf_get_cache_read_hit(fme, &prop->data);
 474         case 0x3: /* READ_MISS */
 475                 return fme_iperf_get_cache_read_miss(fme, &prop->data);
 476         case 0x4: /* WRITE_HIT */
 477                 return fme_iperf_get_cache_write_hit(fme, &prop->data);
 478         case 0x5: /* WRITE_MISS */
 479                 return fme_iperf_get_cache_write_miss(fme, &prop->data);
 480         case 0x6: /* HOLD_REQUEST */
 481                 return fme_iperf_get_cache_hold_request(fme, &prop->data);
 482         case 0x7: /* TX_REQ_STALL */
 483                 return fme_iperf_get_cache_tx_req_stall(fme, &prop->data);
 484         case 0x8: /* RX_REQ_STALL */
 485                 return fme_iperf_get_cache_rx_req_stall(fme, &prop->data);
 486         case 0x9: /* RX_EVICTION */
 487                 return fme_iperf_get_cache_rx_eviction(fme, &prop->data);
 488         case 0xa: /* DATA_WRITE_PORT_CONTENTION */
 489                 return fme_iperf_get_cache_data_write_port_contention(fme,
 490                                                         &prop->data);
 491         case 0xb: /* TAG_WRITE_PORT_CONTENTION */
 492                 return fme_iperf_get_cache_tag_write_port_contention(fme,
 493                                                         &prop->data);
 494         }
 495
 496         return -ENOENT;
 497 }
 498
 499 static int fme_iperf_vtd_root_get_prop(struct feature *feature,
 500                                        struct feature_prop *prop)
 501 {
 502         struct ifpga_fme_hw *fme = feature->parent;
 503         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 504
 505         switch (id) {
 506         case 0x1: /* FREEZE */
 507                 return fme_iperf_get_vtd_freeze(fme, &prop->data);
 508         case 0x2: /* IOTLB_4K_HIT */
 509                 return fme_iperf_get_vtd_sip_iotlb_4k_hit(fme, &prop->data);
 510         case 0x3: /* IOTLB_2M_HIT */
 511                 return fme_iperf_get_vtd_sip_iotlb_2m_hit(fme, &prop->data);
 512         case 0x4: /* IOTLB_1G_HIT */
 513                 return fme_iperf_get_vtd_sip_iotlb_1g_hit(fme, &prop->data);
 514         case 0x5: /* SLPWC_L3_HIT */
 515                 return fme_iperf_get_vtd_sip_slpwc_l3_hit(fme, &prop->data);
 516         case 0x6: /* SLPWC_L4_HIT */
 517                 return fme_iperf_get_vtd_sip_slpwc_l4_hit(fme, &prop->data);
 518         case 0x7: /* RCC_HIT */
 519                 return fme_iperf_get_vtd_sip_rcc_hit(fme, &prop->data);
 520         case 0x8: /* IOTLB_4K_MISS */
 521                 return fme_iperf_get_vtd_sip_iotlb_4k_miss(fme, &prop->data);
 522         case 0x9: /* IOTLB_2M_MISS */
 523                 return fme_iperf_get_vtd_sip_iotlb_2m_miss(fme, &prop->data);
 524         case 0xa: /* IOTLB_1G_MISS */
 525                 return fme_iperf_get_vtd_sip_iotlb_1g_miss(fme, &prop->data);
 526         case 0xb: /* SLPWC_L3_MISS */
 527                 return fme_iperf_get_vtd_sip_slpwc_l3_miss(fme, &prop->data);
 528         case 0xc: /* SLPWC_L4_MISS */
 529                 return fme_iperf_get_vtd_sip_slpwc_l4_miss(fme, &prop->data);
 530         case 0xd: /* RCC_MISS */
 531                 return fme_iperf_get_vtd_sip_rcc_miss(fme, &prop->data);
 532         }
 533
 534         return -ENOENT;
 535 }
 536
 537 static int fme_iperf_vtd_sub_get_prop(struct feature *feature,
 538                                       struct feature_prop *prop)
 539 {
 540         struct ifpga_fme_hw *fme = feature->parent;
 541         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 542         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 543
 544         if (sub > PERF_MAX_PORT_NUM)
 545                 return -ENOENT;
 546
 547         switch (id) {
 548         case 0xe: /* READ_TRANSACTION */
 549                 return fme_iperf_get_vtd_port_read_transaction(fme, sub,
 550                                                                &prop->data);
 551         case 0xf: /* WRITE_TRANSACTION */
 552                 return fme_iperf_get_vtd_port_write_transaction(fme, sub,
 553                                                                 &prop->data);
 554         case 0x10: /* DEVTLB_READ_HIT */
 555                 return fme_iperf_get_vtd_port_devtlb_read_hit(fme, sub,
 556                                                               &prop->data);
 557         case 0x11: /* DEVTLB_WRITE_HIT */
 558                 return fme_iperf_get_vtd_port_devtlb_write_hit(fme, sub,
 559                                                                &prop->data);
 560         case 0x12: /* DEVTLB_4K_FILL */
 561                 return fme_iperf_get_vtd_port_devtlb_4k_fill(fme, sub,
 562                                                              &prop->data);
 563         case 0x13: /* DEVTLB_2M_FILL */
 564                 return fme_iperf_get_vtd_port_devtlb_2m_fill(fme, sub,
 565                                                              &prop->data);
 566         case 0x14: /* DEVTLB_1G_FILL */
 567                 return fme_iperf_get_vtd_port_devtlb_1g_fill(fme, sub,
 568                                                              &prop->data);
 569         }
 570
 571         return -ENOENT;
 572 }
 573
 574 static int fme_iperf_vtd_get_prop(struct feature *feature,
 575                                   struct feature_prop *prop)
 576 {
 577         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 578
 579         if (sub == PERF_PROP_SUB_UNUSED)
 580                 return fme_iperf_vtd_root_get_prop(feature, prop);
 581
 582         return fme_iperf_vtd_sub_get_prop(feature, prop);
 583 }
 584
 585 static int fme_iperf_fab_get_prop(struct feature *feature,
 586                                   struct feature_prop *prop)
 587 {
 588         struct ifpga_fme_hw *fme = feature->parent;
 589         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 590         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 591
 592         /* Other properties are present for both top and sub levels */
 593         switch (id) {
 594         case 0x1: /* FREEZE */
 595                 if (sub != PERF_PROP_SUB_UNUSED)
 596                         return -ENOENT;
 597                 return fme_iperf_get_fab_freeze(fme, &prop->data);
 598         case 0x2: /* PCIE0_READ */
 599                 return fme_iperf_get_fab_port_pcie0_read(fme, sub,
 600                                                          &prop->data);
 601         case 0x3: /* PCIE0_WRITE */
 602                 return fme_iperf_get_fab_port_pcie0_write(fme, sub,
 603                                                           &prop->data);
 604         case 0x4: /* PCIE1_READ */
 605                 return fme_iperf_get_fab_port_pcie1_read(fme, sub,
 606                                                          &prop->data);
 607         case 0x5: /* PCIE1_WRITE */
 608                 return fme_iperf_get_fab_port_pcie1_write(fme, sub,
 609                                                           &prop->data);
 610         case 0x6: /* UPI_READ */
 611                 return fme_iperf_get_fab_port_upi_read(fme, sub,
 612                                                        &prop->data);
 613         case 0x7: /* UPI_WRITE */
 614                 return fme_iperf_get_fab_port_upi_write(fme, sub,
 615                                                         &prop->data);
 616         case 0x8: /* MMIO_READ */
 617                 return fme_iperf_get_fab_port_mmio_read(fme, sub,
 618                                                         &prop->data);
 619         case 0x9: /* MMIO_WRITE */
 620                 return fme_iperf_get_fab_port_mmio_write(fme, sub,
 621                                                          &prop->data);
 622         case 0xa: /* ENABLE */
 623                 return fme_iperf_get_fab_port_enable(fme, sub, &prop->data);
 624         }
 625
 626         return -ENOENT;
 627 }
 628
 629 static int fme_global_iperf_get_prop(struct feature *feature,
 630                                      struct feature_prop *prop)
 631 {
 632         u8 top = GET_FIELD(PROP_TOP, prop->prop_id);
 633
 634         switch (top) {
 635         case PERF_PROP_TOP_CACHE:
 636                 return fme_iperf_cache_get_prop(feature, prop);
 637         case PERF_PROP_TOP_VTD:
 638                 return fme_iperf_vtd_get_prop(feature, prop);
 639         case PERF_PROP_TOP_FAB:
 640                 return fme_iperf_fab_get_prop(feature, prop);
 641         case PERF_PROP_TOP_UNUSED:
 642                 return fme_iperf_root_get_prop(feature, prop);
 643         }
 644
 645         return -ENOENT;
 646 }
 647
 648 static int fme_iperf_cache_set_prop(struct feature *feature,
 649                                     struct feature_prop *prop)
 650 {
 651         struct ifpga_fme_hw *fme = feature->parent;
 652         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 653         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 654
 655         if (sub == PERF_PROP_SUB_UNUSED && id == 0x1) /* FREEZE */
 656                 return fme_iperf_set_cache_freeze(fme, prop->data);
 657
 658         return -ENOENT;
 659 }
 660
 661 static int fme_iperf_vtd_set_prop(struct feature *feature,
 662                                   struct feature_prop *prop)
 663 {
 664         struct ifpga_fme_hw *fme = feature->parent;
 665         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 666         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 667
 668         if (sub == PERF_PROP_SUB_UNUSED && id == 0x1) /* FREEZE */
 669                 return fme_iperf_set_vtd_freeze(fme, prop->data);
 670
 671         return -ENOENT;
 672 }
 673
 674 static int fme_iperf_fab_set_prop(struct feature *feature,
 675                                   struct feature_prop *prop)
 676 {
 677         struct ifpga_fme_hw *fme = feature->parent;
 678         u8 sub = GET_FIELD(PROP_SUB, prop->prop_id);
 679         u16 id = GET_FIELD(PROP_ID, prop->prop_id);
 680
 681         switch (id) {
 682         case 0x1: /* FREEZE */
 683                 if (sub != PERF_PROP_SUB_UNUSED)
 684                         return -ENOENT;
 685                 return fme_iperf_set_fab_freeze(fme, prop->data);
 686         case 0xa: /* ENABLE */
 687                 return fme_iperf_set_fab_port_enable(fme, sub, prop->data);
 688         }
 689
 690         return -ENOENT;
 691 }
 692
 693 static int fme_global_iperf_set_prop(struct feature *feature,
 694                                      struct feature_prop *prop)
 695 {
 696         u8 top = GET_FIELD(PROP_TOP, prop->prop_id);
 697
 698         switch (top) {
 699         case PERF_PROP_TOP_CACHE:
 700                 return fme_iperf_cache_set_prop(feature, prop);
 701         case PERF_PROP_TOP_VTD:
 702                 return fme_iperf_vtd_set_prop(feature, prop);
 703         case PERF_PROP_TOP_FAB:
 704                 return fme_iperf_fab_set_prop(feature, prop);
 705         }
 706
 707         return -ENOENT;
 708 }
 709
 710 struct feature_ops fme_global_iperf_ops = {
 711         .init = fme_global_iperf_init,
 712         .uinit = fme_global_iperf_uinit,
 713         .get_prop = fme_global_iperf_get_prop,
 714         .set_prop = fme_global_iperf_set_prop,
 715 };