4 * Copyright (C) Cavium, Inc. 2017.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
16 * * Neither the name of Cavium, Inc nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 #include <rte_common.h>
36 #include <rte_debug.h>
39 #include <rte_lcore.h>
41 #include <rte_malloc.h>
42 #include <rte_memory.h>
43 #include <rte_memzone.h>
46 #include "ssovf_evdev.h"
48 /* SSOPF Mailbox messages */
50 struct ssovf_mbox_dev_info {
51 uint64_t min_deq_timeout_ns;
52 uint64_t max_deq_timeout_ns;
53 uint32_t max_num_events;
57 ssovf_mbox_dev_info(struct ssovf_mbox_dev_info *info)
59 struct octeontx_mbox_hdr hdr = {0};
60 uint16_t len = sizeof(struct ssovf_mbox_dev_info);
62 hdr.coproc = SSO_COPROC;
63 hdr.msg = SSO_GET_DEV_INFO;
67 return octeontx_ssovf_mbox_send(&hdr, NULL, 0, info, len);
70 struct ssovf_mbox_getwork_wait {
75 ssovf_mbox_getwork_tmo_set(uint32_t timeout_ns)
77 struct octeontx_mbox_hdr hdr = {0};
78 struct ssovf_mbox_getwork_wait tmo_set;
79 uint16_t len = sizeof(struct ssovf_mbox_getwork_wait);
82 hdr.coproc = SSO_COPROC;
83 hdr.msg = SSO_SET_GETWORK_WAIT;
86 tmo_set.wait_ns = timeout_ns;
87 ret = octeontx_ssovf_mbox_send(&hdr, &tmo_set, len, NULL, 0);
89 ssovf_log_err("Failed to set getwork timeout(%d)", ret);
94 struct ssovf_mbox_grp_pri {
95 uint8_t wgt_left; /* Read only */
102 ssovf_mbox_priority_set(uint8_t queue, uint8_t prio)
104 struct octeontx_mbox_hdr hdr = {0};
105 struct ssovf_mbox_grp_pri grp;
106 uint16_t len = sizeof(struct ssovf_mbox_grp_pri);
109 hdr.coproc = SSO_COPROC;
110 hdr.msg = SSO_GRP_SET_PRIORITY;
115 grp.priority = prio / 32; /* Normalize to 0 to 7 */
117 ret = octeontx_ssovf_mbox_send(&hdr, &grp, len, NULL, 0);
119 ssovf_log_err("Failed to set grp=%d prio=%d", queue, prio);
124 struct ssovf_mbox_convert_ns_getworks_iter {
126 uint32_t getwork_iter;/* Get_work iterations for the given wait_ns */
130 ssovf_mbox_timeout_ticks(uint64_t ns, uint64_t *tmo_ticks)
132 struct octeontx_mbox_hdr hdr = {0};
133 struct ssovf_mbox_convert_ns_getworks_iter ns2iter;
134 uint16_t len = sizeof(ns2iter);
137 hdr.coproc = SSO_COPROC;
138 hdr.msg = SSO_CONVERT_NS_GETWORK_ITER;
141 memset(&ns2iter, 0, len);
142 ns2iter.wait_ns = ns;
143 ret = octeontx_ssovf_mbox_send(&hdr, &ns2iter, len, &ns2iter, len);
144 if (ret < 0 || (ret != len)) {
145 ssovf_log_err("Failed to get tmo ticks ns=%"PRId64"", ns);
149 *tmo_ticks = ns2iter.getwork_iter;
154 ssovf_fastpath_fns_set(struct rte_eventdev *dev)
156 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
158 dev->schedule = NULL;
159 dev->enqueue = ssows_enq;
160 dev->enqueue_burst = ssows_enq_burst;
161 dev->enqueue_new_burst = ssows_enq_new_burst;
162 dev->enqueue_forward_burst = ssows_enq_fwd_burst;
163 dev->dequeue = ssows_deq;
164 dev->dequeue_burst = ssows_deq_burst;
166 if (edev->is_timeout_deq) {
167 dev->dequeue = ssows_deq_timeout;
168 dev->dequeue_burst = ssows_deq_timeout_burst;
173 ssovf_info_get(struct rte_eventdev *dev, struct rte_event_dev_info *dev_info)
175 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
177 dev_info->driver_name = RTE_STR(EVENTDEV_NAME_OCTEONTX_PMD);
178 dev_info->min_dequeue_timeout_ns = edev->min_deq_timeout_ns;
179 dev_info->max_dequeue_timeout_ns = edev->max_deq_timeout_ns;
180 dev_info->max_event_queues = edev->max_event_queues;
181 dev_info->max_event_queue_flows = (1ULL << 20);
182 dev_info->max_event_queue_priority_levels = 8;
183 dev_info->max_event_priority_levels = 1;
184 dev_info->max_event_ports = edev->max_event_ports;
185 dev_info->max_event_port_dequeue_depth = 1;
186 dev_info->max_event_port_enqueue_depth = 1;
187 dev_info->max_num_events = edev->max_num_events;
188 dev_info->event_dev_cap = RTE_EVENT_DEV_CAP_QUEUE_QOS |
189 RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED |
190 RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES;
194 ssovf_configure(const struct rte_eventdev *dev)
196 struct rte_event_dev_config *conf = &dev->data->dev_conf;
197 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
201 deq_tmo_ns = conf->dequeue_timeout_ns;
203 deq_tmo_ns = edev->min_deq_timeout_ns;
205 if (conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
206 edev->is_timeout_deq = 1;
207 deq_tmo_ns = edev->min_deq_timeout_ns;
209 edev->nb_event_queues = conf->nb_event_queues;
210 edev->nb_event_ports = conf->nb_event_ports;
212 return ssovf_mbox_getwork_tmo_set(deq_tmo_ns);
216 ssovf_queue_def_conf(struct rte_eventdev *dev, uint8_t queue_id,
217 struct rte_event_queue_conf *queue_conf)
220 RTE_SET_USED(queue_id);
222 queue_conf->nb_atomic_flows = (1ULL << 20);
223 queue_conf->nb_atomic_order_sequences = (1ULL << 20);
224 queue_conf->event_queue_cfg = RTE_EVENT_QUEUE_CFG_ALL_TYPES;
225 queue_conf->priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
229 ssovf_queue_release(struct rte_eventdev *dev, uint8_t queue_id)
232 RTE_SET_USED(queue_id);
236 ssovf_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
237 const struct rte_event_queue_conf *queue_conf)
240 ssovf_func_trace("queue=%d prio=%d", queue_id, queue_conf->priority);
242 return ssovf_mbox_priority_set(queue_id, queue_conf->priority);
246 ssovf_port_def_conf(struct rte_eventdev *dev, uint8_t port_id,
247 struct rte_event_port_conf *port_conf)
249 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
251 RTE_SET_USED(port_id);
252 port_conf->new_event_threshold = edev->max_num_events;
253 port_conf->dequeue_depth = 1;
254 port_conf->enqueue_depth = 1;
258 ssovf_port_release(void *port)
264 ssovf_port_setup(struct rte_eventdev *dev, uint8_t port_id,
265 const struct rte_event_port_conf *port_conf)
270 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
272 ssovf_func_trace("port=%d", port_id);
273 RTE_SET_USED(port_conf);
275 /* Free memory prior to re-allocation if needed */
276 if (dev->data->ports[port_id] != NULL) {
277 ssovf_port_release(dev->data->ports[port_id]);
278 dev->data->ports[port_id] = NULL;
281 /* Allocate event port memory */
282 ws = rte_zmalloc_socket("eventdev ssows",
283 sizeof(struct ssows), RTE_CACHE_LINE_SIZE,
284 dev->data->socket_id);
286 ssovf_log_err("Failed to alloc memory for port=%d", port_id);
290 ws->base = octeontx_ssovf_bar(OCTEONTX_SSO_HWS, port_id, 0);
291 if (ws->base == NULL) {
293 ssovf_log_err("Failed to get hws base addr port=%d", port_id);
297 reg_off = SSOW_VHWS_OP_GET_WORK0;
298 reg_off |= 1 << 4; /* Index_ggrp_mask (Use maskset zero) */
299 reg_off |= 1 << 16; /* Wait */
300 ws->getwork = ws->base + reg_off;
303 for (q = 0; q < edev->nb_event_queues; q++) {
304 ws->grps[q] = octeontx_ssovf_bar(OCTEONTX_SSO_GROUP, q, 2);
305 if (ws->grps[q] == NULL) {
307 ssovf_log_err("Failed to get grp%d base addr", q);
312 dev->data->ports[port_id] = ws;
313 ssovf_log_dbg("port=%d ws=%p", port_id, ws);
318 ssovf_port_link(struct rte_eventdev *dev, void *port, const uint8_t queues[],
319 const uint8_t priorities[], uint16_t nb_links)
323 struct ssows *ws = port;
325 ssovf_func_trace("port=%d nb_links=%d", ws->port, nb_links);
327 RTE_SET_USED(priorities);
329 for (link = 0; link < nb_links; link++) {
331 val |= (1ULL << 24); /* Set membership */
332 ssovf_write64(val, ws->base + SSOW_VHWS_GRPMSK_CHGX(0));
334 return (int)nb_links;
338 ssovf_port_unlink(struct rte_eventdev *dev, void *port, uint8_t queues[],
343 struct ssows *ws = port;
345 ssovf_func_trace("port=%d nb_links=%d", ws->port, nb_unlinks);
348 for (unlink = 0; unlink < nb_unlinks; unlink++) {
349 val = queues[unlink];
350 val &= ~(1ULL << 24); /* Clear membership */
351 ssovf_write64(val, ws->base + SSOW_VHWS_GRPMSK_CHGX(0));
353 return (int)nb_unlinks;
357 ssovf_timeout_ticks(struct rte_eventdev *dev, uint64_t ns, uint64_t *tmo_ticks)
361 return ssovf_mbox_timeout_ticks(ns, tmo_ticks);
365 ssows_dump(struct ssows *ws, FILE *f)
367 uint8_t *base = ws->base;
370 fprintf(f, "\t---------------port%d---------------\n", ws->port);
371 val = ssovf_read64(base + SSOW_VHWS_TAG);
372 fprintf(f, "\ttag=0x%x tt=%d head=%d tail=%d grp=%d index=%d tail=%d\n",
373 (uint32_t)(val & 0xffffffff), (int)(val >> 32) & 0x3,
374 (int)(val >> 34) & 0x1, (int)(val >> 35) & 0x1,
375 (int)(val >> 36) & 0x3ff, (int)(val >> 48) & 0x3ff,
376 (int)(val >> 63) & 0x1);
378 val = ssovf_read64(base + SSOW_VHWS_WQP);
379 fprintf(f, "\twqp=0x%"PRIx64"\n", val);
381 val = ssovf_read64(base + SSOW_VHWS_LINKS);
382 fprintf(f, "\tindex=%d valid=%d revlink=%d tail=%d head=%d grp=%d\n",
383 (int)(val & 0x3ff), (int)(val >> 10) & 0x1,
384 (int)(val >> 11) & 0x3ff, (int)(val >> 26) & 0x1,
385 (int)(val >> 27) & 0x1, (int)(val >> 28) & 0x3ff);
387 val = ssovf_read64(base + SSOW_VHWS_PENDTAG);
388 fprintf(f, "\tptag=0x%x ptt=%d pgwi=%d pdesc=%d pgw=%d pgww=%d ps=%d\n",
389 (uint32_t)(val & 0xffffffff), (int)(val >> 32) & 0x3,
390 (int)(val >> 56) & 0x1, (int)(val >> 58) & 0x1,
391 (int)(val >> 61) & 0x1, (int)(val >> 62) & 0x1,
392 (int)(val >> 63) & 0x1);
394 val = ssovf_read64(base + SSOW_VHWS_PENDWQP);
395 fprintf(f, "\tpwqp=0x%"PRIx64"\n", val);
399 ssovf_dump(struct rte_eventdev *dev, FILE *f)
401 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
404 /* Dump SSOWVF debug registers */
405 for (port = 0; port < edev->nb_event_ports; port++)
406 ssows_dump(dev->data->ports[port], f);
410 ssovf_start(struct rte_eventdev *dev)
412 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
418 for (i = 0; i < edev->nb_event_ports; i++) {
419 ws = dev->data->ports[i];
424 for (i = 0; i < edev->nb_event_queues; i++) {
425 /* Consume all the events through HWS0 */
426 ssows_flush_events(dev->data->ports[0], i);
428 base = octeontx_ssovf_bar(OCTEONTX_SSO_GROUP, i, 0);
429 base += SSO_VHGRP_QCTL;
430 ssovf_write64(1, base); /* Enable SSO group */
433 ssovf_fastpath_fns_set(dev);
438 ssovf_stop(struct rte_eventdev *dev)
440 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
446 for (i = 0; i < edev->nb_event_ports; i++) {
447 ws = dev->data->ports[i];
452 for (i = 0; i < edev->nb_event_queues; i++) {
453 /* Consume all the events through HWS0 */
454 ssows_flush_events(dev->data->ports[0], i);
456 base = octeontx_ssovf_bar(OCTEONTX_SSO_GROUP, i, 0);
457 base += SSO_VHGRP_QCTL;
458 ssovf_write64(0, base); /* Disable SSO group */
463 ssovf_close(struct rte_eventdev *dev)
465 struct ssovf_evdev *edev = ssovf_pmd_priv(dev);
466 uint8_t all_queues[RTE_EVENT_MAX_QUEUES_PER_DEV];
469 for (i = 0; i < edev->nb_event_queues; i++)
472 for (i = 0; i < edev->nb_event_ports; i++)
473 ssovf_port_unlink(dev, dev->data->ports[i], all_queues,
474 edev->nb_event_queues);
478 /* Initialize and register event driver with DPDK Application */
479 static const struct rte_eventdev_ops ssovf_ops = {
480 .dev_infos_get = ssovf_info_get,
481 .dev_configure = ssovf_configure,
482 .queue_def_conf = ssovf_queue_def_conf,
483 .queue_setup = ssovf_queue_setup,
484 .queue_release = ssovf_queue_release,
485 .port_def_conf = ssovf_port_def_conf,
486 .port_setup = ssovf_port_setup,
487 .port_release = ssovf_port_release,
488 .port_link = ssovf_port_link,
489 .port_unlink = ssovf_port_unlink,
490 .timeout_ticks = ssovf_timeout_ticks,
492 .dev_start = ssovf_start,
493 .dev_stop = ssovf_stop,
494 .dev_close = ssovf_close
498 ssovf_vdev_probe(struct rte_vdev_device *vdev)
500 struct octeontx_ssovf_info oinfo;
501 struct ssovf_mbox_dev_info info;
502 struct ssovf_evdev *edev;
503 struct rte_eventdev *eventdev;
504 static int ssovf_init_once;
508 name = rte_vdev_device_name(vdev);
509 /* More than one instance is not supported */
510 if (ssovf_init_once) {
511 ssovf_log_err("Request to create >1 %s instance", name);
515 eventdev = rte_event_pmd_vdev_init(name, sizeof(struct ssovf_evdev),
517 if (eventdev == NULL) {
518 ssovf_log_err("Failed to create eventdev vdev %s", name);
521 eventdev->dev_ops = &ssovf_ops;
523 /* For secondary processes, the primary has done all the work */
524 if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
525 ssovf_fastpath_fns_set(eventdev);
529 ret = octeontx_ssovf_info(&oinfo);
531 ssovf_log_err("Failed to probe and validate ssovfs %d", ret);
535 edev = ssovf_pmd_priv(eventdev);
536 edev->max_event_ports = oinfo.total_ssowvfs;
537 edev->max_event_queues = oinfo.total_ssovfs;
538 edev->is_timeout_deq = 0;
540 ret = ssovf_mbox_dev_info(&info);
541 if (ret < 0 || ret != sizeof(struct ssovf_mbox_dev_info)) {
542 ssovf_log_err("Failed to get mbox devinfo %d", ret);
546 edev->min_deq_timeout_ns = info.min_deq_timeout_ns;
547 edev->max_deq_timeout_ns = info.max_deq_timeout_ns;
548 edev->max_num_events = info.max_num_events;
549 ssovf_log_dbg("min_deq_tmo=%"PRId64" max_deq_tmo=%"PRId64" max_evts=%d",
550 info.min_deq_timeout_ns, info.max_deq_timeout_ns,
551 info.max_num_events);
553 if (!edev->max_event_ports || !edev->max_event_queues) {
554 ssovf_log_err("Not enough eventdev resource queues=%d ports=%d",
555 edev->max_event_queues, edev->max_event_ports);
560 ssovf_log_info("Initializing %s domain=%d max_queues=%d max_ports=%d",
561 name, oinfo.domain, edev->max_event_queues,
562 edev->max_event_ports);
568 rte_event_pmd_vdev_uninit(name);
573 ssovf_vdev_remove(struct rte_vdev_device *vdev)
577 name = rte_vdev_device_name(vdev);
578 ssovf_log_info("Closing %s", name);
579 return rte_event_pmd_vdev_uninit(name);
582 static struct rte_vdev_driver vdev_ssovf_pmd = {
583 .probe = ssovf_vdev_probe,
584 .remove = ssovf_vdev_remove
587 RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_OCTEONTX_PMD, vdev_ssovf_pmd);