drivers/event/sw/sw_evdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016-2017 Intel Corporation
   3  */
   4
   5 #include <inttypes.h>
   6 #include <string.h>
   7
   8 #include <rte_bus_vdev.h>
   9 #include <rte_kvargs.h>
  10 #include <rte_ring.h>
  11 #include <rte_errno.h>
  12 #include <rte_event_ring.h>
  13 #include <rte_service_component.h>
  14
  15 #include "sw_evdev.h"
  16 #include "iq_chunk.h"
  17
  18 #define EVENTDEV_NAME_SW_PMD event_sw
  19 #define NUMA_NODE_ARG "numa_node"
  20 #define SCHED_QUANTA_ARG "sched_quanta"
  21 #define CREDIT_QUANTA_ARG "credit_quanta"
  22
  23 static void
  24 sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info);
  25
  26 static int
  27 sw_port_link(struct rte_eventdev *dev, void *port, const uint8_t queues[],
  28                 const uint8_t priorities[], uint16_t num)
  29 {
  30         struct sw_port *p = port;
  31         struct sw_evdev *sw = sw_pmd_priv(dev);
  32         int i;
  33
  34         RTE_SET_USED(priorities);
  35         for (i = 0; i < num; i++) {
  36                 struct sw_qid *q = &sw->qids[queues[i]];
  37                 unsigned int j;
  38
  39                 /* check for qid map overflow */
  40                 if (q->cq_num_mapped_cqs >= RTE_DIM(q->cq_map)) {
  41                         rte_errno = -EDQUOT;
  42                         break;
  43                 }
  44
  45                 if (p->is_directed && p->num_qids_mapped > 0) {
  46                         rte_errno = -EDQUOT;
  47                         break;
  48                 }
  49
  50                 for (j = 0; j < q->cq_num_mapped_cqs; j++) {
  51                         if (q->cq_map[j] == p->id)
  52                                 break;
  53                 }
  54
  55                 /* check if port is already linked */
  56                 if (j < q->cq_num_mapped_cqs)
  57                         continue;
  58
  59                 if (q->type == SW_SCHED_TYPE_DIRECT) {
  60                         /* check directed qids only map to one port */
  61                         if (p->num_qids_mapped > 0) {
  62                                 rte_errno = -EDQUOT;
  63                                 break;
  64                         }
  65                         /* check port only takes a directed flow */
  66                         if (num > 1) {
  67                                 rte_errno = -EDQUOT;
  68                                 break;
  69                         }
  70
  71                         p->is_directed = 1;
  72                         p->num_qids_mapped = 1;
  73                 } else if (q->type == RTE_SCHED_TYPE_ORDERED) {
  74                         p->num_ordered_qids++;
  75                         p->num_qids_mapped++;
  76                 } else if (q->type == RTE_SCHED_TYPE_ATOMIC ||
  77                                 q->type == RTE_SCHED_TYPE_PARALLEL) {
  78                         p->num_qids_mapped++;
  79                 }
  80
  81                 q->cq_map[q->cq_num_mapped_cqs] = p->id;
  82                 rte_smp_wmb();
  83                 q->cq_num_mapped_cqs++;
  84         }
  85         return i;
  86 }
  87
  88 static int
  89 sw_port_unlink(struct rte_eventdev *dev, void *port, uint8_t queues[],
  90                 uint16_t nb_unlinks)
  91 {
  92         struct sw_port *p = port;
  93         struct sw_evdev *sw = sw_pmd_priv(dev);
  94         unsigned int i, j;
  95
  96         int unlinked = 0;
  97         for (i = 0; i < nb_unlinks; i++) {
  98                 struct sw_qid *q = &sw->qids[queues[i]];
  99                 for (j = 0; j < q->cq_num_mapped_cqs; j++) {
 100                         if (q->cq_map[j] == p->id) {
 101                                 q->cq_map[j] =
 102                                         q->cq_map[q->cq_num_mapped_cqs - 1];
 103                                 rte_smp_wmb();
 104                                 q->cq_num_mapped_cqs--;
 105                                 unlinked++;
 106
 107                                 p->num_qids_mapped--;
 108
 109                                 if (q->type == RTE_SCHED_TYPE_ORDERED)
 110                                         p->num_ordered_qids--;
 111
 112                                 continue;
 113                         }
 114                 }
 115         }
 116         return unlinked;
 117 }
 118
 119 static int
 120 sw_port_setup(struct rte_eventdev *dev, uint8_t port_id,
 121                 const struct rte_event_port_conf *conf)
 122 {
 123         struct sw_evdev *sw = sw_pmd_priv(dev);
 124         struct sw_port *p = &sw->ports[port_id];
 125         char buf[RTE_RING_NAMESIZE];
 126         unsigned int i;
 127
 128         struct rte_event_dev_info info;
 129         sw_info_get(dev, &info);
 130
 131         /* detect re-configuring and return credits to instance if needed */
 132         if (p->initialized) {
 133                 /* taking credits from pool is done one quanta at a time, and
 134                  * credits may be spend (counted in p->inflights) or still
 135                  * available in the port (p->inflight_credits). We must return
 136                  * the sum to no leak credits
 137                  */
 138                 int possible_inflights = p->inflight_credits + p->inflights;
 139                 rte_atomic32_sub(&sw->inflights, possible_inflights);
 140         }
 141
 142         *p = (struct sw_port){0}; /* zero entire structure */
 143         p->id = port_id;
 144         p->sw = sw;
 145
 146         /* check to see if rings exists - port_setup() can be called multiple
 147          * times legally (assuming device is stopped). If ring exists, free it
 148          * to so it gets re-created with the correct size
 149          */
 150         snprintf(buf, sizeof(buf), "sw%d_p%u_%s", dev->data->dev_id,
 151                         port_id, "rx_worker_ring");
 152         struct rte_event_ring *existing_ring = rte_event_ring_lookup(buf);
 153         if (existing_ring)
 154                 rte_event_ring_free(existing_ring);
 155
 156         p->rx_worker_ring = rte_event_ring_create(buf, MAX_SW_PROD_Q_DEPTH,
 157                         dev->data->socket_id,
 158                         RING_F_SP_ENQ | RING_F_SC_DEQ | RING_F_EXACT_SZ);
 159         if (p->rx_worker_ring == NULL) {
 160                 SW_LOG_ERR("Error creating RX worker ring for port %d\n",
 161                                 port_id);
 162                 return -1;
 163         }
 164
 165         p->inflight_max = conf->new_event_threshold;
 166         p->implicit_release = !conf->disable_implicit_release;
 167
 168         /* check if ring exists, same as rx_worker above */
 169         snprintf(buf, sizeof(buf), "sw%d_p%u, %s", dev->data->dev_id,
 170                         port_id, "cq_worker_ring");
 171         existing_ring = rte_event_ring_lookup(buf);
 172         if (existing_ring)
 173                 rte_event_ring_free(existing_ring);
 174
 175         p->cq_worker_ring = rte_event_ring_create(buf, conf->dequeue_depth,
 176                         dev->data->socket_id,
 177                         RING_F_SP_ENQ | RING_F_SC_DEQ | RING_F_EXACT_SZ);
 178         if (p->cq_worker_ring == NULL) {
 179                 rte_event_ring_free(p->rx_worker_ring);
 180                 SW_LOG_ERR("Error creating CQ worker ring for port %d\n",
 181                                 port_id);
 182                 return -1;
 183         }
 184         sw->cq_ring_space[port_id] = conf->dequeue_depth;
 185
 186         /* set hist list contents to empty */
 187         for (i = 0; i < SW_PORT_HIST_LIST; i++) {
 188                 p->hist_list[i].fid = -1;
 189                 p->hist_list[i].qid = -1;
 190         }
 191         dev->data->ports[port_id] = p;
 192
 193         rte_smp_wmb();
 194         p->initialized = 1;
 195         return 0;
 196 }
 197
 198 static void
 199 sw_port_release(void *port)
 200 {
 201         struct sw_port *p = (void *)port;
 202         if (p == NULL)
 203                 return;
 204
 205         rte_event_ring_free(p->rx_worker_ring);
 206         rte_event_ring_free(p->cq_worker_ring);
 207         memset(p, 0, sizeof(*p));
 208 }
 209
 210 static int32_t
 211 qid_init(struct sw_evdev *sw, unsigned int idx, int type,
 212                 const struct rte_event_queue_conf *queue_conf)
 213 {
 214         unsigned int i;
 215         int dev_id = sw->data->dev_id;
 216         int socket_id = sw->data->socket_id;
 217         char buf[IQ_ROB_NAMESIZE];
 218         struct sw_qid *qid = &sw->qids[idx];
 219
 220         for (i = 0; i < SW_IQS_MAX; i++)
 221                 iq_init(sw, &qid->iq[i]);
 222
 223         /* Initialize the FID structures to no pinning (-1), and zero packets */
 224         const struct sw_fid_t fid = {.cq = -1, .pcount = 0};
 225         for (i = 0; i < RTE_DIM(qid->fids); i++)
 226                 qid->fids[i] = fid;
 227
 228         qid->id = idx;
 229         qid->type = type;
 230         qid->priority = queue_conf->priority;
 231
 232         if (qid->type == RTE_SCHED_TYPE_ORDERED) {
 233                 char ring_name[RTE_RING_NAMESIZE];
 234                 uint32_t window_size;
 235
 236                 /* rte_ring and window_size_mask require require window_size to
 237                  * be a power-of-2.
 238                  */
 239                 window_size = rte_align32pow2(
 240                                 queue_conf->nb_atomic_order_sequences);
 241
 242                 qid->window_size = window_size - 1;
 243
 244                 if (!window_size) {
 245                         SW_LOG_DBG(
 246                                 "invalid reorder_window_size for ordered queue\n"
 247                                 );
 248                         goto cleanup;
 249                 }
 250
 251                 snprintf(buf, sizeof(buf), "sw%d_iq_%d_rob", dev_id, i);
 252                 qid->reorder_buffer = rte_zmalloc_socket(buf,
 253                                 window_size * sizeof(qid->reorder_buffer[0]),
 254                                 0, socket_id);
 255                 if (!qid->reorder_buffer) {
 256                         SW_LOG_DBG("reorder_buffer malloc failed\n");
 257                         goto cleanup;
 258                 }
 259
 260                 memset(&qid->reorder_buffer[0],
 261                        0,
 262                        window_size * sizeof(qid->reorder_buffer[0]));
 263
 264                 snprintf(ring_name, sizeof(ring_name), "sw%d_q%d_freelist",
 265                                 dev_id, idx);
 266
 267                 /* lookup the ring, and if it already exists, free it */
 268                 struct rte_ring *cleanup = rte_ring_lookup(ring_name);
 269                 if (cleanup)
 270                         rte_ring_free(cleanup);
 271
 272                 qid->reorder_buffer_freelist = rte_ring_create(ring_name,
 273                                 window_size,
 274                                 socket_id,
 275                                 RING_F_SP_ENQ | RING_F_SC_DEQ);
 276                 if (!qid->reorder_buffer_freelist) {
 277                         SW_LOG_DBG("freelist ring create failed");
 278                         goto cleanup;
 279                 }
 280
 281                 /* Populate the freelist with reorder buffer entries. Enqueue
 282                  * 'window_size - 1' entries because the rte_ring holds only
 283                  * that many.
 284                  */
 285                 for (i = 0; i < window_size - 1; i++) {
 286                         if (rte_ring_sp_enqueue(qid->reorder_buffer_freelist,
 287                                                 &qid->reorder_buffer[i]) < 0)
 288                                 goto cleanup;
 289                 }
 290
 291                 qid->reorder_buffer_index = 0;
 292                 qid->cq_next_tx = 0;
 293         }
 294
 295         qid->initialized = 1;
 296
 297         return 0;
 298
 299 cleanup:
 300         for (i = 0; i < SW_IQS_MAX; i++) {
 301                 if (qid->iq[i].head)
 302                         iq_free_chunk(sw, qid->iq[i].head);
 303         }
 304
 305         if (qid->reorder_buffer) {
 306                 rte_free(qid->reorder_buffer);
 307                 qid->reorder_buffer = NULL;
 308         }
 309
 310         if (qid->reorder_buffer_freelist) {
 311                 rte_ring_free(qid->reorder_buffer_freelist);
 312                 qid->reorder_buffer_freelist = NULL;
 313         }
 314
 315         return -EINVAL;
 316 }
 317
 318 static void
 319 sw_queue_release(struct rte_eventdev *dev, uint8_t id)
 320 {
 321         struct sw_evdev *sw = sw_pmd_priv(dev);
 322         struct sw_qid *qid = &sw->qids[id];
 323         uint32_t i;
 324
 325         for (i = 0; i < SW_IQS_MAX; i++) {
 326                 if (!qid->iq[i].head)
 327                         continue;
 328                 iq_free_chunk(sw, qid->iq[i].head);
 329         }
 330
 331         if (qid->type == RTE_SCHED_TYPE_ORDERED) {
 332                 rte_free(qid->reorder_buffer);
 333                 rte_ring_free(qid->reorder_buffer_freelist);
 334         }
 335         memset(qid, 0, sizeof(*qid));
 336 }
 337
 338 static int
 339 sw_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
 340                 const struct rte_event_queue_conf *conf)
 341 {
 342         int type;
 343
 344         type = conf->schedule_type;
 345
 346         if (RTE_EVENT_QUEUE_CFG_SINGLE_LINK & conf->event_queue_cfg) {
 347                 type = SW_SCHED_TYPE_DIRECT;
 348         } else if (RTE_EVENT_QUEUE_CFG_ALL_TYPES
 349                         & conf->event_queue_cfg) {
 350                 SW_LOG_ERR("QUEUE_CFG_ALL_TYPES not supported\n");
 351                 return -ENOTSUP;
 352         }
 353
 354         struct sw_evdev *sw = sw_pmd_priv(dev);
 355
 356         if (sw->qids[queue_id].initialized)
 357                 sw_queue_release(dev, queue_id);
 358
 359         return qid_init(sw, queue_id, type, conf);
 360 }
 361
 362 static void
 363 sw_queue_def_conf(struct rte_eventdev *dev, uint8_t queue_id,
 364                                  struct rte_event_queue_conf *conf)
 365 {
 366         RTE_SET_USED(dev);
 367         RTE_SET_USED(queue_id);
 368
 369         static const struct rte_event_queue_conf default_conf = {
 370                 .nb_atomic_flows = 4096,
 371                 .nb_atomic_order_sequences = 1,
 372                 .schedule_type = RTE_SCHED_TYPE_ATOMIC,
 373                 .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
 374         };
 375
 376         *conf = default_conf;
 377 }
 378
 379 static void
 380 sw_port_def_conf(struct rte_eventdev *dev, uint8_t port_id,
 381                  struct rte_event_port_conf *port_conf)
 382 {
 383         RTE_SET_USED(dev);
 384         RTE_SET_USED(port_id);
 385
 386         port_conf->new_event_threshold = 1024;
 387         port_conf->dequeue_depth = 16;
 388         port_conf->enqueue_depth = 16;
 389         port_conf->disable_implicit_release = 0;
 390 }
 391
 392 static int
 393 sw_dev_configure(const struct rte_eventdev *dev)
 394 {
 395         struct sw_evdev *sw = sw_pmd_priv(dev);
 396         const struct rte_eventdev_data *data = dev->data;
 397         const struct rte_event_dev_config *conf = &data->dev_conf;
 398         int num_chunks, i;
 399
 400         sw->qid_count = conf->nb_event_queues;
 401         sw->port_count = conf->nb_event_ports;
 402         sw->nb_events_limit = conf->nb_events_limit;
 403         rte_atomic32_set(&sw->inflights, 0);
 404
 405         /* Number of chunks sized for worst-case spread of events across IQs */
 406         num_chunks = ((SW_INFLIGHT_EVENTS_TOTAL/SW_EVS_PER_Q_CHUNK)+1) +
 407                         sw->qid_count*SW_IQS_MAX*2;
 408
 409         /* If this is a reconfiguration, free the previous IQ allocation */
 410         if (sw->chunks)
 411                 rte_free(sw->chunks);
 412
 413         sw->chunks = rte_malloc_socket(NULL,
 414                                        sizeof(struct sw_queue_chunk) *
 415                                        num_chunks,
 416                                        0,
 417                                        sw->data->socket_id);
 418         if (!sw->chunks)
 419                 return -ENOMEM;
 420
 421         sw->chunk_list_head = NULL;
 422         for (i = 0; i < num_chunks; i++)
 423                 iq_free_chunk(sw, &sw->chunks[i]);
 424
 425         if (conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT)
 426                 return -ENOTSUP;
 427
 428         return 0;
 429 }
 430
 431 struct rte_eth_dev;
 432
 433 static int
 434 sw_eth_rx_adapter_caps_get(const struct rte_eventdev *dev,
 435                         const struct rte_eth_dev *eth_dev,
 436                         uint32_t *caps)
 437 {
 438         RTE_SET_USED(dev);
 439         RTE_SET_USED(eth_dev);
 440         *caps = RTE_EVENT_ETH_RX_ADAPTER_SW_CAP;
 441         return 0;
 442 }
 443
 444 static void
 445 sw_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *info)
 446 {
 447         RTE_SET_USED(dev);
 448
 449         static const struct rte_event_dev_info evdev_sw_info = {
 450                         .driver_name = SW_PMD_NAME,
 451                         .max_event_queues = RTE_EVENT_MAX_QUEUES_PER_DEV,
 452                         .max_event_queue_flows = SW_QID_NUM_FIDS,
 453                         .max_event_queue_priority_levels = SW_Q_PRIORITY_MAX,
 454                         .max_event_priority_levels = SW_IQS_MAX,
 455                         .max_event_ports = SW_PORTS_MAX,
 456                         .max_event_port_dequeue_depth = MAX_SW_CONS_Q_DEPTH,
 457                         .max_event_port_enqueue_depth = MAX_SW_PROD_Q_DEPTH,
 458                         .max_num_events = SW_INFLIGHT_EVENTS_TOTAL,
 459                         .event_dev_cap = (
 460                                 RTE_EVENT_DEV_CAP_QUEUE_QOS |
 461                                 RTE_EVENT_DEV_CAP_BURST_MODE |
 462                                 RTE_EVENT_DEV_CAP_EVENT_QOS |
 463                                 RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE),
 464         };
 465
 466         *info = evdev_sw_info;
 467 }
 468
 469 static void
 470 sw_dump(struct rte_eventdev *dev, FILE *f)
 471 {
 472         const struct sw_evdev *sw = sw_pmd_priv(dev);
 473
 474         static const char * const q_type_strings[] = {
 475                         "Ordered", "Atomic", "Parallel", "Directed"
 476         };
 477         uint32_t i;
 478         fprintf(f, "EventDev %s: ports %d, qids %d\n", "todo-fix-name",
 479                         sw->port_count, sw->qid_count);
 480
 481         fprintf(f, "\trx   %"PRIu64"\n\tdrop %"PRIu64"\n\ttx   %"PRIu64"\n",
 482                 sw->stats.rx_pkts, sw->stats.rx_dropped, sw->stats.tx_pkts);
 483         fprintf(f, "\tsched calls: %"PRIu64"\n", sw->sched_called);
 484         fprintf(f, "\tsched cq/qid call: %"PRIu64"\n", sw->sched_cq_qid_called);
 485         fprintf(f, "\tsched no IQ enq: %"PRIu64"\n", sw->sched_no_iq_enqueues);
 486         fprintf(f, "\tsched no CQ enq: %"PRIu64"\n", sw->sched_no_cq_enqueues);
 487         uint32_t inflights = rte_atomic32_read(&sw->inflights);
 488         uint32_t credits = sw->nb_events_limit - inflights;
 489         fprintf(f, "\tinflight %d, credits: %d\n", inflights, credits);
 490
 491 #define COL_RED "\x1b[31m"
 492 #define COL_RESET "\x1b[0m"
 493
 494         for (i = 0; i < sw->port_count; i++) {
 495                 int max, j;
 496                 const struct sw_port *p = &sw->ports[i];
 497                 if (!p->initialized) {
 498                         fprintf(f, "  %sPort %d not initialized.%s\n",
 499                                 COL_RED, i, COL_RESET);
 500                         continue;
 501                 }
 502                 fprintf(f, "  Port %d %s\n", i,
 503                         p->is_directed ? " (SingleCons)" : "");
 504                 fprintf(f, "\trx   %"PRIu64"\tdrop %"PRIu64"\ttx   %"PRIu64
 505                         "\t%sinflight %d%s\n", sw->ports[i].stats.rx_pkts,
 506                         sw->ports[i].stats.rx_dropped,
 507                         sw->ports[i].stats.tx_pkts,
 508                         (p->inflights == p->inflight_max) ?
 509                                 COL_RED : COL_RESET,
 510                         sw->ports[i].inflights, COL_RESET);
 511
 512                 fprintf(f, "\tMax New: %u"
 513                         "\tAvg cycles PP: %"PRIu64"\tCredits: %u\n",
 514                         sw->ports[i].inflight_max,
 515                         sw->ports[i].avg_pkt_ticks,
 516                         sw->ports[i].inflight_credits);
 517                 fprintf(f, "\tReceive burst distribution:\n");
 518                 float zp_percent = p->zero_polls * 100.0 / p->total_polls;
 519                 fprintf(f, zp_percent < 10 ? "\t\t0:%.02f%% " : "\t\t0:%.0f%% ",
 520                                 zp_percent);
 521                 for (max = (int)RTE_DIM(p->poll_buckets); max-- > 0;)
 522                         if (p->poll_buckets[max] != 0)
 523                                 break;
 524                 for (j = 0; j <= max; j++) {
 525                         if (p->poll_buckets[j] != 0) {
 526                                 float poll_pc = p->poll_buckets[j] * 100.0 /
 527                                         p->total_polls;
 528                                 fprintf(f, "%u-%u:%.02f%% ",
 529                                         ((j << SW_DEQ_STAT_BUCKET_SHIFT) + 1),
 530                                         ((j+1) << SW_DEQ_STAT_BUCKET_SHIFT),
 531                                         poll_pc);
 532                         }
 533                 }
 534                 fprintf(f, "\n");
 535
 536                 if (p->rx_worker_ring) {
 537                         uint64_t used = rte_event_ring_count(p->rx_worker_ring);
 538                         uint64_t space = rte_event_ring_free_count(
 539                                         p->rx_worker_ring);
 540                         const char *col = (space == 0) ? COL_RED : COL_RESET;
 541                         fprintf(f, "\t%srx ring used: %4"PRIu64"\tfree: %4"
 542                                         PRIu64 COL_RESET"\n", col, used, space);
 543                 } else
 544                         fprintf(f, "\trx ring not initialized.\n");
 545
 546                 if (p->cq_worker_ring) {
 547                         uint64_t used = rte_event_ring_count(p->cq_worker_ring);
 548                         uint64_t space = rte_event_ring_free_count(
 549                                         p->cq_worker_ring);
 550                         const char *col = (space == 0) ? COL_RED : COL_RESET;
 551                         fprintf(f, "\t%scq ring used: %4"PRIu64"\tfree: %4"
 552                                         PRIu64 COL_RESET"\n", col, used, space);
 553                 } else
 554                         fprintf(f, "\tcq ring not initialized.\n");
 555         }
 556
 557         for (i = 0; i < sw->qid_count; i++) {
 558                 const struct sw_qid *qid = &sw->qids[i];
 559                 if (!qid->initialized) {
 560                         fprintf(f, "  %sQueue %d not initialized.%s\n",
 561                                 COL_RED, i, COL_RESET);
 562                         continue;
 563                 }
 564                 int affinities_per_port[SW_PORTS_MAX] = {0};
 565                 uint32_t inflights = 0;
 566
 567                 fprintf(f, "  Queue %d (%s)\n", i, q_type_strings[qid->type]);
 568                 fprintf(f, "\trx   %"PRIu64"\tdrop %"PRIu64"\ttx   %"PRIu64"\n",
 569                         qid->stats.rx_pkts, qid->stats.rx_dropped,
 570                         qid->stats.tx_pkts);
 571                 if (qid->type == RTE_SCHED_TYPE_ORDERED) {
 572                         struct rte_ring *rob_buf_free =
 573                                 qid->reorder_buffer_freelist;
 574                         if (rob_buf_free)
 575                                 fprintf(f, "\tReorder entries in use: %u\n",
 576                                         rte_ring_free_count(rob_buf_free));
 577                         else
 578                                 fprintf(f,
 579                                         "\tReorder buffer not initialized\n");
 580                 }
 581
 582                 uint32_t flow;
 583                 for (flow = 0; flow < RTE_DIM(qid->fids); flow++)
 584                         if (qid->fids[flow].cq != -1) {
 585                                 affinities_per_port[qid->fids[flow].cq]++;
 586                                 inflights += qid->fids[flow].pcount;
 587                         }
 588
 589                 uint32_t port;
 590                 fprintf(f, "\tPer Port Stats:\n");
 591                 for (port = 0; port < sw->port_count; port++) {
 592                         fprintf(f, "\t  Port %d: Pkts: %"PRIu64, port,
 593                                         qid->to_port[port]);
 594                         fprintf(f, "\tFlows: %d\n", affinities_per_port[port]);
 595                 }
 596
 597                 uint32_t iq;
 598                 uint32_t iq_printed = 0;
 599                 for (iq = 0; iq < SW_IQS_MAX; iq++) {
 600                         if (!qid->iq[iq].head) {
 601                                 fprintf(f, "\tiq %d is not initialized.\n", iq);
 602                                 iq_printed = 1;
 603                                 continue;
 604                         }
 605                         uint32_t used = iq_count(&qid->iq[iq]);
 606                         const char *col = COL_RESET;
 607                         if (used > 0) {
 608                                 fprintf(f, "\t%siq %d: Used %d"
 609                                         COL_RESET"\n", col, iq, used);
 610                                 iq_printed = 1;
 611                         }
 612                 }
 613                 if (iq_printed == 0)
 614                         fprintf(f, "\t-- iqs empty --\n");
 615         }
 616 }
 617
 618 static int
 619 sw_start(struct rte_eventdev *dev)
 620 {
 621         unsigned int i, j;
 622         struct sw_evdev *sw = sw_pmd_priv(dev);
 623
 624         rte_service_component_runstate_set(sw->service_id, 1);
 625
 626         /* check a service core is mapped to this service */
 627         if (!rte_service_runstate_get(sw->service_id)) {
 628                 SW_LOG_ERR("Warning: No Service core enabled on service %s\n",
 629                                 sw->service_name);
 630                 return -ENOENT;
 631         }
 632
 633         /* check all ports are set up */
 634         for (i = 0; i < sw->port_count; i++)
 635                 if (sw->ports[i].rx_worker_ring == NULL) {
 636                         SW_LOG_ERR("Port %d not configured\n", i);
 637                         return -ESTALE;
 638                 }
 639
 640         /* check all queues are configured and mapped to ports*/
 641         for (i = 0; i < sw->qid_count; i++)
 642                 if (sw->qids[i].iq[0].head == NULL ||
 643                                 sw->qids[i].cq_num_mapped_cqs == 0) {
 644                         SW_LOG_ERR("Queue %d not configured\n", i);
 645                         return -ENOLINK;
 646                 }
 647
 648         /* build up our prioritized array of qids */
 649         /* We don't use qsort here, as if all/multiple entries have the same
 650          * priority, the result is non-deterministic. From "man 3 qsort":
 651          * "If two members compare as equal, their order in the sorted
 652          * array is undefined."
 653          */
 654         uint32_t qidx = 0;
 655         for (j = 0; j <= RTE_EVENT_DEV_PRIORITY_LOWEST; j++) {
 656                 for (i = 0; i < sw->qid_count; i++) {
 657                         if (sw->qids[i].priority == j) {
 658                                 sw->qids_prioritized[qidx] = &sw->qids[i];
 659                                 qidx++;
 660                         }
 661                 }
 662         }
 663
 664         if (sw_xstats_init(sw) < 0)
 665                 return -EINVAL;
 666
 667         rte_smp_wmb();
 668         sw->started = 1;
 669
 670         return 0;
 671 }
 672
 673 static void
 674 sw_stop(struct rte_eventdev *dev)
 675 {
 676         struct sw_evdev *sw = sw_pmd_priv(dev);
 677         sw_xstats_uninit(sw);
 678         sw->started = 0;
 679         rte_smp_wmb();
 680 }
 681
 682 static int
 683 sw_close(struct rte_eventdev *dev)
 684 {
 685         struct sw_evdev *sw = sw_pmd_priv(dev);
 686         uint32_t i;
 687
 688         for (i = 0; i < sw->qid_count; i++)
 689                 sw_queue_release(dev, i);
 690         sw->qid_count = 0;
 691
 692         for (i = 0; i < sw->port_count; i++)
 693                 sw_port_release(&sw->ports[i]);
 694         sw->port_count = 0;
 695
 696         memset(&sw->stats, 0, sizeof(sw->stats));
 697         sw->sched_called = 0;
 698         sw->sched_no_iq_enqueues = 0;
 699         sw->sched_no_cq_enqueues = 0;
 700         sw->sched_cq_qid_called = 0;
 701
 702         return 0;
 703 }
 704
 705 static int
 706 assign_numa_node(const char *key __rte_unused, const char *value, void *opaque)
 707 {
 708         int *socket_id = opaque;
 709         *socket_id = atoi(value);
 710         if (*socket_id >= RTE_MAX_NUMA_NODES)
 711                 return -1;
 712         return 0;
 713 }
 714
 715 static int
 716 set_sched_quanta(const char *key __rte_unused, const char *value, void *opaque)
 717 {
 718         int *quanta = opaque;
 719         *quanta = atoi(value);
 720         if (*quanta < 0 || *quanta >= 4096)
 721                 return -1;
 722         return 0;
 723 }
 724
 725 static int
 726 set_credit_quanta(const char *key __rte_unused, const char *value, void *opaque)
 727 {
 728         int *credit = opaque;
 729         *credit = atoi(value);
 730         if (*credit < 0 || *credit >= 128)
 731                 return -1;
 732         return 0;
 733 }
 734
 735
 736 static int32_t sw_sched_service_func(void *args)
 737 {
 738         struct rte_eventdev *dev = args;
 739         sw_event_schedule(dev);
 740         return 0;
 741 }
 742
 743 static int
 744 sw_probe(struct rte_vdev_device *vdev)
 745 {
 746         static const struct rte_eventdev_ops evdev_sw_ops = {
 747                         .dev_configure = sw_dev_configure,
 748                         .dev_infos_get = sw_info_get,
 749                         .dev_close = sw_close,
 750                         .dev_start = sw_start,
 751                         .dev_stop = sw_stop,
 752                         .dump = sw_dump,
 753
 754                         .queue_def_conf = sw_queue_def_conf,
 755                         .queue_setup = sw_queue_setup,
 756                         .queue_release = sw_queue_release,
 757                         .port_def_conf = sw_port_def_conf,
 758                         .port_setup = sw_port_setup,
 759                         .port_release = sw_port_release,
 760                         .port_link = sw_port_link,
 761                         .port_unlink = sw_port_unlink,
 762
 763                         .eth_rx_adapter_caps_get = sw_eth_rx_adapter_caps_get,
 764
 765                         .xstats_get = sw_xstats_get,
 766                         .xstats_get_names = sw_xstats_get_names,
 767                         .xstats_get_by_name = sw_xstats_get_by_name,
 768                         .xstats_reset = sw_xstats_reset,
 769         };
 770
 771         static const char *const args[] = {
 772                 NUMA_NODE_ARG,
 773                 SCHED_QUANTA_ARG,
 774                 CREDIT_QUANTA_ARG,
 775                 NULL
 776         };
 777         const char *name;
 778         const char *params;
 779         struct rte_eventdev *dev;
 780         struct sw_evdev *sw;
 781         int socket_id = rte_socket_id();
 782         int sched_quanta  = SW_DEFAULT_SCHED_QUANTA;
 783         int credit_quanta = SW_DEFAULT_CREDIT_QUANTA;
 784
 785         name = rte_vdev_device_name(vdev);
 786         params = rte_vdev_device_args(vdev);
 787         if (params != NULL && params[0] != '\0') {
 788                 struct rte_kvargs *kvlist = rte_kvargs_parse(params, args);
 789
 790                 if (!kvlist) {
 791                         SW_LOG_INFO(
 792                                 "Ignoring unsupported parameters when creating device '%s'\n",
 793                                 name);
 794                 } else {
 795                         int ret = rte_kvargs_process(kvlist, NUMA_NODE_ARG,
 796                                         assign_numa_node, &socket_id);
 797                         if (ret != 0) {
 798                                 SW_LOG_ERR(
 799                                         "%s: Error parsing numa node parameter",
 800                                         name);
 801                                 rte_kvargs_free(kvlist);
 802                                 return ret;
 803                         }
 804
 805                         ret = rte_kvargs_process(kvlist, SCHED_QUANTA_ARG,
 806                                         set_sched_quanta, &sched_quanta);
 807                         if (ret != 0) {
 808                                 SW_LOG_ERR(
 809                                         "%s: Error parsing sched quanta parameter",
 810                                         name);
 811                                 rte_kvargs_free(kvlist);
 812                                 return ret;
 813                         }
 814
 815                         ret = rte_kvargs_process(kvlist, CREDIT_QUANTA_ARG,
 816                                         set_credit_quanta, &credit_quanta);
 817                         if (ret != 0) {
 818                                 SW_LOG_ERR(
 819                                         "%s: Error parsing credit quanta parameter",
 820                                         name);
 821                                 rte_kvargs_free(kvlist);
 822                                 return ret;
 823                         }
 824
 825                         rte_kvargs_free(kvlist);
 826                 }
 827         }
 828
 829         SW_LOG_INFO(
 830                         "Creating eventdev sw device %s, numa_node=%d, sched_quanta=%d, credit_quanta=%d\n",
 831                         name, socket_id, sched_quanta, credit_quanta);
 832
 833         dev = rte_event_pmd_vdev_init(name,
 834                         sizeof(struct sw_evdev), socket_id);
 835         if (dev == NULL) {
 836                 SW_LOG_ERR("eventdev vdev init() failed");
 837                 return -EFAULT;
 838         }
 839         dev->dev_ops = &evdev_sw_ops;
 840         dev->enqueue = sw_event_enqueue;
 841         dev->enqueue_burst = sw_event_enqueue_burst;
 842         dev->enqueue_new_burst = sw_event_enqueue_burst;
 843         dev->enqueue_forward_burst = sw_event_enqueue_burst;
 844         dev->dequeue = sw_event_dequeue;
 845         dev->dequeue_burst = sw_event_dequeue_burst;
 846
 847         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 848                 return 0;
 849
 850         sw = dev->data->dev_private;
 851         sw->data = dev->data;
 852
 853         /* copy values passed from vdev command line to instance */
 854         sw->credit_update_quanta = credit_quanta;
 855         sw->sched_quanta = sched_quanta;
 856
 857         /* register service with EAL */
 858         struct rte_service_spec service;
 859         memset(&service, 0, sizeof(struct rte_service_spec));
 860         snprintf(service.name, sizeof(service.name), "%s_service", name);
 861         snprintf(sw->service_name, sizeof(sw->service_name), "%s_service",
 862                         name);
 863         service.socket_id = socket_id;
 864         service.callback = sw_sched_service_func;
 865         service.callback_userdata = (void *)dev;
 866
 867         int32_t ret = rte_service_component_register(&service, &sw->service_id);
 868         if (ret) {
 869                 SW_LOG_ERR("service register() failed");
 870                 return -ENOEXEC;
 871         }
 872
 873         dev->data->service_inited = 1;
 874         dev->data->service_id = sw->service_id;
 875
 876         return 0;
 877 }
 878
 879 static int
 880 sw_remove(struct rte_vdev_device *vdev)
 881 {
 882         const char *name;
 883
 884         name = rte_vdev_device_name(vdev);
 885         if (name == NULL)
 886                 return -EINVAL;
 887
 888         SW_LOG_INFO("Closing eventdev sw device %s\n", name);
 889
 890         return rte_event_pmd_vdev_uninit(name);
 891 }
 892
 893 static struct rte_vdev_driver evdev_sw_pmd_drv = {
 894         .probe = sw_probe,
 895         .remove = sw_remove
 896 };
 897
 898 RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_SW_PMD, evdev_sw_pmd_drv);
 899 RTE_PMD_REGISTER_PARAM_STRING(event_sw, NUMA_NODE_ARG "=<int> "
 900                 SCHED_QUANTA_ARG "=<int>" CREDIT_QUANTA_ARG "=<int>");