]> git.proxmox.com Git - ceph.git/blame - ceph/src/spdk/dpdk/lib/librte_eventdev/rte_event_eth_rx_adapter.c
projects / ceph.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
import 15.2.0 Octopus source
[ceph.git] / ceph / src / spdk / dpdk / lib / librte_eventdev / rte_event_eth_rx_adapter.c
CommitLineData
11fdf7f2
TL		 1/* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017 Intel Corporation.
3 * All rights reserved.
4 */
5#if defined(LINUX)
6#include <sys/epoll.h>
7#endif
8#include <unistd.h>
9
10#include <rte_cycles.h>
11#include <rte_common.h>
12#include <rte_dev.h>
13#include <rte_errno.h>
14#include <rte_ethdev.h>
15#include <rte_log.h>
16#include <rte_malloc.h>
17#include <rte_service_component.h>
18#include <rte_thash.h>
19#include <rte_interrupts.h>
20
21#include "rte_eventdev.h"
22#include "rte_eventdev_pmd.h"
23#include "rte_event_eth_rx_adapter.h"
24
25#define BATCH_SIZE 32
26#define BLOCK_CNT_THRESHOLD 10
27#define ETH_EVENT_BUFFER_SIZE (4*BATCH_SIZE)
28
29#define ETH_RX_ADAPTER_SERVICE_NAME_LEN 32
30#define ETH_RX_ADAPTER_MEM_NAME_LEN 32
31
32#define RSS_KEY_SIZE 40
33/* value written to intr thread pipe to signal thread exit */
34#define ETH_BRIDGE_INTR_THREAD_EXIT 1
35/* Sentinel value to detect initialized file handle */
36#define INIT_FD -1
37
38/*
39 * Used to store port and queue ID of interrupting Rx queue
40 */
41union queue_data {
42 RTE_STD_C11
43 void *ptr;
44 struct {
45 uint16_t port;
46 uint16_t queue;
47 };
48};
49
50/*
51 * There is an instance of this struct per polled Rx queue added to the
52 * adapter
53 */
54struct eth_rx_poll_entry {
55 /* Eth port to poll */
56 uint16_t eth_dev_id;
57 /* Eth rx queue to poll */
58 uint16_t eth_rx_qid;
59};
60
61/* Instance per adapter */
62struct rte_eth_event_enqueue_buffer {
63 /* Count of events in this buffer */
64 uint16_t count;
65 /* Array of events in this buffer */
66 struct rte_event events[ETH_EVENT_BUFFER_SIZE];
67};
68
69struct rte_event_eth_rx_adapter {
70 /* RSS key */
71 uint8_t rss_key_be[RSS_KEY_SIZE];
72 /* Event device identifier */
73 uint8_t eventdev_id;
74 /* Per ethernet device structure */
75 struct eth_device_info *eth_devices;
76 /* Event port identifier */
77 uint8_t event_port_id;
78 /* Lock to serialize config updates with service function */
79 rte_spinlock_t rx_lock;
80 /* Max mbufs processed in any service function invocation */
81 uint32_t max_nb_rx;
82 /* Receive queues that need to be polled */
83 struct eth_rx_poll_entry *eth_rx_poll;
84 /* Size of the eth_rx_poll array */
85 uint16_t num_rx_polled;
86 /* Weighted round robin schedule */
87 uint32_t *wrr_sched;
88 /* wrr_sched[] size */
89 uint32_t wrr_len;
90 /* Next entry in wrr[] to begin polling */
91 uint32_t wrr_pos;
92 /* Event burst buffer */
93 struct rte_eth_event_enqueue_buffer event_enqueue_buffer;
94 /* Per adapter stats */
95 struct rte_event_eth_rx_adapter_stats stats;
96 /* Block count, counts up to BLOCK_CNT_THRESHOLD */
97 uint16_t enq_block_count;
98 /* Block start ts */
99 uint64_t rx_enq_block_start_ts;
100 /* epoll fd used to wait for Rx interrupts */
101 int epd;
102 /* Num of interrupt driven interrupt queues */
103 uint32_t num_rx_intr;
104 /* Used to send <dev id, queue id> of interrupting Rx queues from
105 * the interrupt thread to the Rx thread
106 */
107 struct rte_ring *intr_ring;
108 /* Rx Queue data (dev id, queue id) for the last non-empty
109 * queue polled
110 */
111 union queue_data qd;
112 /* queue_data is valid */
113 int qd_valid;
114 /* Interrupt ring lock, synchronizes Rx thread
115 * and interrupt thread
116 */
117 rte_spinlock_t intr_ring_lock;
118 /* event array passed to rte_poll_wait */
119 struct rte_epoll_event *epoll_events;
120 /* Count of interrupt vectors in use */
121 uint32_t num_intr_vec;
122 /* Thread blocked on Rx interrupts */
123 pthread_t rx_intr_thread;
124 /* Configuration callback for rte_service configuration */
125 rte_event_eth_rx_adapter_conf_cb conf_cb;
126 /* Configuration callback argument */
127 void *conf_arg;
128 /* Set if default_cb is being used */
129 int default_cb_arg;
130 /* Service initialization state */
131 uint8_t service_inited;
132 /* Total count of Rx queues in adapter */
133 uint32_t nb_queues;
134 /* Memory allocation name */
135 char mem_name[ETH_RX_ADAPTER_MEM_NAME_LEN];
136 /* Socket identifier cached from eventdev */
137 int socket_id;
138 /* Per adapter EAL service */
139 uint32_t service_id;
140 /* Adapter started flag */
141 uint8_t rxa_started;
142 /* Adapter ID */
143 uint8_t id;
144} __rte_cache_aligned;
145
146/* Per eth device */
147struct eth_device_info {
148 struct rte_eth_dev *dev;
149 struct eth_rx_queue_info *rx_queue;
150 /* Rx callback */
151 rte_event_eth_rx_adapter_cb_fn cb_fn;
152 /* Rx callback argument */
153 void *cb_arg;
154 /* Set if ethdev->eventdev packet transfer uses a
155 * hardware mechanism
156 */
157 uint8_t internal_event_port;
158 /* Set if the adapter is processing rx queues for
159 * this eth device and packet processing has been
160 * started, allows for the code to know if the PMD
161 * rx_adapter_stop callback needs to be invoked
162 */
163 uint8_t dev_rx_started;
164 /* Number of queues added for this device */
165 uint16_t nb_dev_queues;
166 /* Number of poll based queues
167 * If nb_rx_poll > 0, the start callback will
168 * be invoked if not already invoked
169 */
170 uint16_t nb_rx_poll;
171 /* Number of interrupt based queues
172 * If nb_rx_intr > 0, the start callback will
173 * be invoked if not already invoked.
174 */
175 uint16_t nb_rx_intr;
176 /* Number of queues that use the shared interrupt */
177 uint16_t nb_shared_intr;
178 /* sum(wrr(q)) for all queues within the device
179 * useful when deleting all device queues
180 */
181 uint32_t wrr_len;
182 /* Intr based queue index to start polling from, this is used
183 * if the number of shared interrupts is non-zero
184 */
185 uint16_t next_q_idx;
186 /* Intr based queue indices */
187 uint16_t *intr_queue;
188 /* device generates per Rx queue interrupt for queue index
189 * for queue indices < RTE_MAX_RXTX_INTR_VEC_ID - 1
190 */
191 int multi_intr_cap;
192 /* shared interrupt enabled */
193 int shared_intr_enabled;
194};
195
196/* Per Rx queue */
197struct eth_rx_queue_info {
198 int queue_enabled; /* True if added */
199 int intr_enabled;
200 uint16_t wt; /* Polling weight */
201 uint8_t event_queue_id; /* Event queue to enqueue packets to */
202 uint8_t sched_type; /* Sched type for events */
203 uint8_t priority; /* Event priority */
204 uint32_t flow_id; /* App provided flow identifier */
205 uint32_t flow_id_mask; /* Set to ~0 if app provides flow id else 0 */
206};
207
208static struct rte_event_eth_rx_adapter **event_eth_rx_adapter;
209
210static inline int
211rxa_validate_id(uint8_t id)
212{
213 return id < RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE;
214}
215
216#define RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, retval) do { \
217 if (!rxa_validate_id(id)) { \
218 RTE_EDEV_LOG_ERR("Invalid eth Rx adapter id = %d\n", id); \
219 return retval; \
220 } \
221} while (0)
222
223static inline int
224rxa_sw_adapter_queue_count(struct rte_event_eth_rx_adapter *rx_adapter)
225{
226 return rx_adapter->num_rx_polled + rx_adapter->num_rx_intr;
227}
228
229/* Greatest common divisor */
230static uint16_t rxa_gcd_u16(uint16_t a, uint16_t b)
231{
232 uint16_t r = a % b;
233
234 return r ? rxa_gcd_u16(b, r) : b;
235}
236
237/* Returns the next queue in the polling sequence
238 *
239 * http://kb.linuxvirtualserver.org/wiki/Weighted_Round-Robin_Scheduling
240 */
241static int
242rxa_wrr_next(struct rte_event_eth_rx_adapter *rx_adapter,
243 unsigned int n, int *cw,
244 struct eth_rx_poll_entry *eth_rx_poll, uint16_t max_wt,
245 uint16_t gcd, int prev)
246{
247 int i = prev;
248 uint16_t w;
249
250 while (1) {
251 uint16_t q;
252 uint16_t d;
253
254 i = (i + 1) % n;
255 if (i == 0) {
256 *cw = *cw - gcd;
257 if (*cw <= 0)
258 *cw = max_wt;
259 }
260
261 q = eth_rx_poll[i].eth_rx_qid;
262 d = eth_rx_poll[i].eth_dev_id;
263 w = rx_adapter->eth_devices[d].rx_queue[q].wt;
264
265 if ((int)w >= *cw)
266 return i;
267 }
268}
269
270static inline int
271rxa_shared_intr(struct eth_device_info *dev_info,
272 int rx_queue_id)
273{
274 int multi_intr_cap;
275
276 if (dev_info->dev->intr_handle == NULL)
277 return 0;
278
279 multi_intr_cap = rte_intr_cap_multiple(dev_info->dev->intr_handle);
280 return !multi_intr_cap ||
281 rx_queue_id >= RTE_MAX_RXTX_INTR_VEC_ID - 1;
282}
283
284static inline int
285rxa_intr_queue(struct eth_device_info *dev_info,
286 int rx_queue_id)
287{
288 struct eth_rx_queue_info *queue_info;
289
290 queue_info = &dev_info->rx_queue[rx_queue_id];
291 return dev_info->rx_queue &&
292 !dev_info->internal_event_port &&
293 queue_info->queue_enabled && queue_info->wt == 0;
294}
295
296static inline int
297rxa_polled_queue(struct eth_device_info *dev_info,
298 int rx_queue_id)
299{
300 struct eth_rx_queue_info *queue_info;
301
302 queue_info = &dev_info->rx_queue[rx_queue_id];
303 return !dev_info->internal_event_port &&
304 dev_info->rx_queue &&
305 queue_info->queue_enabled && queue_info->wt != 0;
306}
307
308/* Calculate change in number of vectors after Rx queue ID is add/deleted */
309static int
310rxa_nb_intr_vect(struct eth_device_info *dev_info, int rx_queue_id, int add)
311{
312 uint16_t i;
313 int n, s;
314 uint16_t nbq;
315
316 nbq = dev_info->dev->data->nb_rx_queues;
317 n = 0; /* non shared count */
318 s = 0; /* shared count */
319
320 if (rx_queue_id == -1) {
321 for (i = 0; i < nbq; i++) {
322 if (!rxa_shared_intr(dev_info, i))
323 n += add ? !rxa_intr_queue(dev_info, i) :
324 rxa_intr_queue(dev_info, i);
325 else
326 s += add ? !rxa_intr_queue(dev_info, i) :
327 rxa_intr_queue(dev_info, i);
328 }
329
330 if (s > 0) {
331 if ((add && dev_info->nb_shared_intr == 0) ||
332 (!add && dev_info->nb_shared_intr))
333 n += 1;
334 }
335 } else {
336 if (!rxa_shared_intr(dev_info, rx_queue_id))
337 n = add ? !rxa_intr_queue(dev_info, rx_queue_id) :
338 rxa_intr_queue(dev_info, rx_queue_id);
339 else
340 n = add ? !dev_info->nb_shared_intr :
341 dev_info->nb_shared_intr == 1;
342 }
343
344 return add ? n : -n;
345}
346
347/* Calculate nb_rx_intr after deleting interrupt mode rx queues
348 */
349static void
350rxa_calc_nb_post_intr_del(struct rte_event_eth_rx_adapter *rx_adapter,
351 struct eth_device_info *dev_info,
352 int rx_queue_id,
353 uint32_t *nb_rx_intr)
354{
355 uint32_t intr_diff;
356
357 if (rx_queue_id == -1)
358 intr_diff = dev_info->nb_rx_intr;
359 else
360 intr_diff = rxa_intr_queue(dev_info, rx_queue_id);
361
362 *nb_rx_intr = rx_adapter->num_rx_intr - intr_diff;
363}
364
365/* Calculate nb_rx_* after adding interrupt mode rx queues, newly added
366 * interrupt queues could currently be poll mode Rx queues
367 */
368static void
369rxa_calc_nb_post_add_intr(struct rte_event_eth_rx_adapter *rx_adapter,
370 struct eth_device_info *dev_info,
371 int rx_queue_id,
372 uint32_t *nb_rx_poll,
373 uint32_t *nb_rx_intr,
374 uint32_t *nb_wrr)
375{
376 uint32_t intr_diff;
377 uint32_t poll_diff;
378 uint32_t wrr_len_diff;
379
380 if (rx_queue_id == -1) {
381 intr_diff = dev_info->dev->data->nb_rx_queues -
382 dev_info->nb_rx_intr;
383 poll_diff = dev_info->nb_rx_poll;
384 wrr_len_diff = dev_info->wrr_len;
385 } else {
386 intr_diff = !rxa_intr_queue(dev_info, rx_queue_id);
387 poll_diff = rxa_polled_queue(dev_info, rx_queue_id);
388 wrr_len_diff = poll_diff ? dev_info->rx_queue[rx_queue_id].wt :
389 0;
390 }
391
392 *nb_rx_intr = rx_adapter->num_rx_intr + intr_diff;
393 *nb_rx_poll = rx_adapter->num_rx_polled - poll_diff;
394 *nb_wrr = rx_adapter->wrr_len - wrr_len_diff;
395}
396
397/* Calculate size of the eth_rx_poll and wrr_sched arrays
398 * after deleting poll mode rx queues
399 */
400static void
401rxa_calc_nb_post_poll_del(struct rte_event_eth_rx_adapter *rx_adapter,
402 struct eth_device_info *dev_info,
403 int rx_queue_id,
404 uint32_t *nb_rx_poll,
405 uint32_t *nb_wrr)
406{
407 uint32_t poll_diff;
408 uint32_t wrr_len_diff;
409
410 if (rx_queue_id == -1) {
411 poll_diff = dev_info->nb_rx_poll;
412 wrr_len_diff = dev_info->wrr_len;
413 } else {
414 poll_diff = rxa_polled_queue(dev_info, rx_queue_id);
415 wrr_len_diff = poll_diff ? dev_info->rx_queue[rx_queue_id].wt :
416 0;
417 }
418
419 *nb_rx_poll = rx_adapter->num_rx_polled - poll_diff;
420 *nb_wrr = rx_adapter->wrr_len - wrr_len_diff;
421}
422
423/* Calculate nb_rx_* after adding poll mode rx queues
424 */
425static void
426rxa_calc_nb_post_add_poll(struct rte_event_eth_rx_adapter *rx_adapter,
427 struct eth_device_info *dev_info,
428 int rx_queue_id,
429 uint16_t wt,
430 uint32_t *nb_rx_poll,
431 uint32_t *nb_rx_intr,
432 uint32_t *nb_wrr)
433{
434 uint32_t intr_diff;
435 uint32_t poll_diff;
436 uint32_t wrr_len_diff;
437
438 if (rx_queue_id == -1) {
439 intr_diff = dev_info->nb_rx_intr;
440 poll_diff = dev_info->dev->data->nb_rx_queues -
441 dev_info->nb_rx_poll;
442 wrr_len_diff = wt*dev_info->dev->data->nb_rx_queues
443 - dev_info->wrr_len;
444 } else {
445 intr_diff = rxa_intr_queue(dev_info, rx_queue_id);
446 poll_diff = !rxa_polled_queue(dev_info, rx_queue_id);
447 wrr_len_diff = rxa_polled_queue(dev_info, rx_queue_id) ?
448 wt - dev_info->rx_queue[rx_queue_id].wt :
449 wt;
450 }
451
452 *nb_rx_poll = rx_adapter->num_rx_polled + poll_diff;
453 *nb_rx_intr = rx_adapter->num_rx_intr - intr_diff;
454 *nb_wrr = rx_adapter->wrr_len + wrr_len_diff;
455}
456
457/* Calculate nb_rx_* after adding rx_queue_id */
458static void
459rxa_calc_nb_post_add(struct rte_event_eth_rx_adapter *rx_adapter,
460 struct eth_device_info *dev_info,
461 int rx_queue_id,
462 uint16_t wt,
463 uint32_t *nb_rx_poll,
464 uint32_t *nb_rx_intr,
465 uint32_t *nb_wrr)
466{
467 if (wt != 0)
468 rxa_calc_nb_post_add_poll(rx_adapter, dev_info, rx_queue_id,
469 wt, nb_rx_poll, nb_rx_intr, nb_wrr);
470 else
471 rxa_calc_nb_post_add_intr(rx_adapter, dev_info, rx_queue_id,
472 nb_rx_poll, nb_rx_intr, nb_wrr);
473}
474
475/* Calculate nb_rx_* after deleting rx_queue_id */
476static void
477rxa_calc_nb_post_del(struct rte_event_eth_rx_adapter *rx_adapter,
478 struct eth_device_info *dev_info,
479 int rx_queue_id,
480 uint32_t *nb_rx_poll,
481 uint32_t *nb_rx_intr,
482 uint32_t *nb_wrr)
483{
484 rxa_calc_nb_post_poll_del(rx_adapter, dev_info, rx_queue_id, nb_rx_poll,
485 nb_wrr);
486 rxa_calc_nb_post_intr_del(rx_adapter, dev_info, rx_queue_id,
487 nb_rx_intr);
488}
489
490/*
491 * Allocate the rx_poll array
492 */
493static struct eth_rx_poll_entry *
494rxa_alloc_poll(struct rte_event_eth_rx_adapter *rx_adapter,
495 uint32_t num_rx_polled)
496{
497 size_t len;
498
499 len = RTE_ALIGN(num_rx_polled * sizeof(*rx_adapter->eth_rx_poll),
500 RTE_CACHE_LINE_SIZE);
501 return rte_zmalloc_socket(rx_adapter->mem_name,
502 len,
503 RTE_CACHE_LINE_SIZE,
504 rx_adapter->socket_id);
505}
506
507/*
508 * Allocate the WRR array
509 */
510static uint32_t *
511rxa_alloc_wrr(struct rte_event_eth_rx_adapter *rx_adapter, int nb_wrr)
512{
513 size_t len;
514
515 len = RTE_ALIGN(nb_wrr * sizeof(*rx_adapter->wrr_sched),
516 RTE_CACHE_LINE_SIZE);
517 return rte_zmalloc_socket(rx_adapter->mem_name,
518 len,
519 RTE_CACHE_LINE_SIZE,
520 rx_adapter->socket_id);
521}
522
523static int
524rxa_alloc_poll_arrays(struct rte_event_eth_rx_adapter *rx_adapter,
525 uint32_t nb_poll,
526 uint32_t nb_wrr,
527 struct eth_rx_poll_entry **rx_poll,
528 uint32_t **wrr_sched)
529{
530
531 if (nb_poll == 0) {
532 *rx_poll = NULL;
533 *wrr_sched = NULL;
534 return 0;
535 }
536
537 *rx_poll = rxa_alloc_poll(rx_adapter, nb_poll);
538 if (*rx_poll == NULL) {
539 *wrr_sched = NULL;
540 return -ENOMEM;
541 }
542
543 *wrr_sched = rxa_alloc_wrr(rx_adapter, nb_wrr);
544 if (*wrr_sched == NULL) {
545 rte_free(*rx_poll);
546 return -ENOMEM;
547 }
548 return 0;
549}
550
551/* Precalculate WRR polling sequence for all queues in rx_adapter */
552static void
553rxa_calc_wrr_sequence(struct rte_event_eth_rx_adapter *rx_adapter,
554 struct eth_rx_poll_entry *rx_poll,
555 uint32_t *rx_wrr)
556{
557 uint16_t d;
558 uint16_t q;
559 unsigned int i;
560 int prev = -1;
561 int cw = -1;
562
563 /* Initialize variables for calculation of wrr schedule */
564 uint16_t max_wrr_pos = 0;
565 unsigned int poll_q = 0;
566 uint16_t max_wt = 0;
567 uint16_t gcd = 0;
568
569 if (rx_poll == NULL)
570 return;
571
572 /* Generate array of all queues to poll, the size of this
573 * array is poll_q
574 */
575 RTE_ETH_FOREACH_DEV(d) {
576 uint16_t nb_rx_queues;
577 struct eth_device_info *dev_info =
578 &rx_adapter->eth_devices[d];
579 nb_rx_queues = dev_info->dev->data->nb_rx_queues;
580 if (dev_info->rx_queue == NULL)
581 continue;
582 if (dev_info->internal_event_port)
583 continue;
584 dev_info->wrr_len = 0;
585 for (q = 0; q < nb_rx_queues; q++) {
586 struct eth_rx_queue_info *queue_info =
587 &dev_info->rx_queue[q];
588 uint16_t wt;
589
590 if (!rxa_polled_queue(dev_info, q))
591 continue;
592 wt = queue_info->wt;
593 rx_poll[poll_q].eth_dev_id = d;
594 rx_poll[poll_q].eth_rx_qid = q;
595 max_wrr_pos += wt;
596 dev_info->wrr_len += wt;
597 max_wt = RTE_MAX(max_wt, wt);
598 gcd = (gcd) ? rxa_gcd_u16(gcd, wt) : wt;
599 poll_q++;
600 }
601 }
602
603 /* Generate polling sequence based on weights */
604 prev = -1;
605 cw = -1;
606 for (i = 0; i < max_wrr_pos; i++) {
607 rx_wrr[i] = rxa_wrr_next(rx_adapter, poll_q, &cw,
608 rx_poll, max_wt, gcd, prev);
609 prev = rx_wrr[i];
610 }
611}
612
613static inline void
614rxa_mtoip(struct rte_mbuf *m, struct ipv4_hdr **ipv4_hdr,
615 struct ipv6_hdr **ipv6_hdr)
616{
617 struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
618 struct vlan_hdr *vlan_hdr;
619
620 *ipv4_hdr = NULL;
621 *ipv6_hdr = NULL;
622
623 switch (eth_hdr->ether_type) {
624 case RTE_BE16(ETHER_TYPE_IPv4):
625 *ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
626 break;
627
628 case RTE_BE16(ETHER_TYPE_IPv6):
629 *ipv6_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
630 break;
631
632 case RTE_BE16(ETHER_TYPE_VLAN):
633 vlan_hdr = (struct vlan_hdr *)(eth_hdr + 1);
634 switch (vlan_hdr->eth_proto) {
635 case RTE_BE16(ETHER_TYPE_IPv4):
636 *ipv4_hdr = (struct ipv4_hdr *)(vlan_hdr + 1);
637 break;
638 case RTE_BE16(ETHER_TYPE_IPv6):
639 *ipv6_hdr = (struct ipv6_hdr *)(vlan_hdr + 1);
640 break;
641 default:
642 break;
643 }
644 break;
645
646 default:
647 break;
648 }
649}
650
651/* Calculate RSS hash for IPv4/6 */
652static inline uint32_t
653rxa_do_softrss(struct rte_mbuf *m, const uint8_t *rss_key_be)
654{
655 uint32_t input_len;
656 void *tuple;
657 struct rte_ipv4_tuple ipv4_tuple;
658 struct rte_ipv6_tuple ipv6_tuple;
659 struct ipv4_hdr *ipv4_hdr;
660 struct ipv6_hdr *ipv6_hdr;
661
662 rxa_mtoip(m, &ipv4_hdr, &ipv6_hdr);
663
664 if (ipv4_hdr) {
665 ipv4_tuple.src_addr = rte_be_to_cpu_32(ipv4_hdr->src_addr);
666 ipv4_tuple.dst_addr = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
667 tuple = &ipv4_tuple;
668 input_len = RTE_THASH_V4_L3_LEN;
669 } else if (ipv6_hdr) {
670 rte_thash_load_v6_addrs(ipv6_hdr,
671 (union rte_thash_tuple *)&ipv6_tuple);
672 tuple = &ipv6_tuple;
673 input_len = RTE_THASH_V6_L3_LEN;
674 } else
675 return 0;
676
677 return rte_softrss_be(tuple, input_len, rss_key_be);
678}
679
680static inline int
681rxa_enq_blocked(struct rte_event_eth_rx_adapter *rx_adapter)
682{
683 return !!rx_adapter->enq_block_count;
684}
685
686static inline void
687rxa_enq_block_start_ts(struct rte_event_eth_rx_adapter *rx_adapter)
688{
689 if (rx_adapter->rx_enq_block_start_ts)
690 return;
691
692 rx_adapter->enq_block_count++;
693 if (rx_adapter->enq_block_count < BLOCK_CNT_THRESHOLD)
694 return;
695
696 rx_adapter->rx_enq_block_start_ts = rte_get_tsc_cycles();
697}
698
699static inline void
700rxa_enq_block_end_ts(struct rte_event_eth_rx_adapter *rx_adapter,
701 struct rte_event_eth_rx_adapter_stats *stats)
702{
703 if (unlikely(!stats->rx_enq_start_ts))
704 stats->rx_enq_start_ts = rte_get_tsc_cycles();
705
706 if (likely(!rxa_enq_blocked(rx_adapter)))
707 return;
708
709 rx_adapter->enq_block_count = 0;
710 if (rx_adapter->rx_enq_block_start_ts) {
711 stats->rx_enq_end_ts = rte_get_tsc_cycles();
712 stats->rx_enq_block_cycles += stats->rx_enq_end_ts -
713 rx_adapter->rx_enq_block_start_ts;
714 rx_adapter->rx_enq_block_start_ts = 0;
715 }
716}
717
718/* Add event to buffer, free space check is done prior to calling
719 * this function
720 */
721static inline void
722rxa_buffer_event(struct rte_event_eth_rx_adapter *rx_adapter,
723 struct rte_event *ev)
724{
725 struct rte_eth_event_enqueue_buffer *buf =
726 &rx_adapter->event_enqueue_buffer;
727 rte_memcpy(&buf->events[buf->count++], ev, sizeof(struct rte_event));
728}
729
730/* Enqueue buffered events to event device */
731static inline uint16_t
732rxa_flush_event_buffer(struct rte_event_eth_rx_adapter *rx_adapter)
733{
734 struct rte_eth_event_enqueue_buffer *buf =
735 &rx_adapter->event_enqueue_buffer;
736 struct rte_event_eth_rx_adapter_stats *stats = &rx_adapter->stats;
737
738 uint16_t n = rte_event_enqueue_new_burst(rx_adapter->eventdev_id,
739 rx_adapter->event_port_id,
740 buf->events,
741 buf->count);
742 if (n != buf->count) {
743 memmove(buf->events,
744 &buf->events[n],
745 (buf->count - n) * sizeof(struct rte_event));
746 stats->rx_enq_retry++;
747 }
748
749 n ? rxa_enq_block_end_ts(rx_adapter, stats) :
750 rxa_enq_block_start_ts(rx_adapter);
751
752 buf->count -= n;
753 stats->rx_enq_count += n;
754
755 return n;
756}
757
758static inline void
759rxa_buffer_mbufs(struct rte_event_eth_rx_adapter *rx_adapter,
760 uint16_t eth_dev_id,
761 uint16_t rx_queue_id,
762 struct rte_mbuf **mbufs,
763 uint16_t num)
764{
765 uint32_t i;
766 struct eth_device_info *dev_info =
767 &rx_adapter->eth_devices[eth_dev_id];
768 struct eth_rx_queue_info *eth_rx_queue_info =
769 &dev_info->rx_queue[rx_queue_id];
770 struct rte_eth_event_enqueue_buffer *buf =
771 &rx_adapter->event_enqueue_buffer;
772 int32_t qid = eth_rx_queue_info->event_queue_id;
773 uint8_t sched_type = eth_rx_queue_info->sched_type;
774 uint8_t priority = eth_rx_queue_info->priority;
775 uint32_t flow_id;
776 struct rte_event events[BATCH_SIZE];
777 struct rte_mbuf *m = mbufs[0];
778 uint32_t rss_mask;
779 uint32_t rss;
780 int do_rss;
781 uint64_t ts;
782 struct rte_mbuf *cb_mbufs[BATCH_SIZE];
783 uint16_t nb_cb;
784
785 /* 0xffff ffff if PKT_RX_RSS_HASH is set, otherwise 0 */
786 rss_mask = ~(((m->ol_flags & PKT_RX_RSS_HASH) != 0) - 1);
787 do_rss = !rss_mask && !eth_rx_queue_info->flow_id_mask;
788
789 if ((m->ol_flags & PKT_RX_TIMESTAMP) == 0) {
790 ts = rte_get_tsc_cycles();
791 for (i = 0; i < num; i++) {
792 m = mbufs[i];
793
794 m->timestamp = ts;
795 m->ol_flags |= PKT_RX_TIMESTAMP;
796 }
797 }
798
799
800 nb_cb = dev_info->cb_fn ? dev_info->cb_fn(eth_dev_id, rx_queue_id,
801 ETH_EVENT_BUFFER_SIZE,
802 buf->count, mbufs,
803 num,
804 dev_info->cb_arg,
805 cb_mbufs) :
806 num;
807 if (nb_cb < num) {
808 mbufs = cb_mbufs;
809 num = nb_cb;
810 }
811
812 for (i = 0; i < num; i++) {
813 m = mbufs[i];
814 struct rte_event *ev = &events[i];
815
816 rss = do_rss ?
817 rxa_do_softrss(m, rx_adapter->rss_key_be) :
818 m->hash.rss;
819 flow_id =
820 eth_rx_queue_info->flow_id &
821 eth_rx_queue_info->flow_id_mask;
822 flow_id |= rss & ~eth_rx_queue_info->flow_id_mask;
823 ev->flow_id = flow_id;
824 ev->op = RTE_EVENT_OP_NEW;
825 ev->sched_type = sched_type;
826 ev->queue_id = qid;
827 ev->event_type = RTE_EVENT_TYPE_ETH_RX_ADAPTER;
828 ev->sub_event_type = 0;
829 ev->priority = priority;
830 ev->mbuf = m;
831
832 rxa_buffer_event(rx_adapter, ev);
833 }
834}
835
836/* Enqueue packets from <port, q> to event buffer */
837static inline uint32_t
838rxa_eth_rx(struct rte_event_eth_rx_adapter *rx_adapter,
839 uint16_t port_id,
840 uint16_t queue_id,
841 uint32_t rx_count,
842 uint32_t max_rx,
843 int *rxq_empty)
844{
845 struct rte_mbuf *mbufs[BATCH_SIZE];
846 struct rte_eth_event_enqueue_buffer *buf =
847 &rx_adapter->event_enqueue_buffer;
848 struct rte_event_eth_rx_adapter_stats *stats =
849 &rx_adapter->stats;
850 uint16_t n;
851 uint32_t nb_rx = 0;
852
853 if (rxq_empty)
854 *rxq_empty = 0;
855 /* Don't do a batch dequeue from the rx queue if there isn't
856 * enough space in the enqueue buffer.
857 */
858 while (BATCH_SIZE <= (RTE_DIM(buf->events) - buf->count)) {
859 if (buf->count >= BATCH_SIZE)
860 rxa_flush_event_buffer(rx_adapter);
861
862 stats->rx_poll_count++;
863 n = rte_eth_rx_burst(port_id, queue_id, mbufs, BATCH_SIZE);
864 if (unlikely(!n)) {
865 if (rxq_empty)
866 *rxq_empty = 1;
867 break;
868 }
869 rxa_buffer_mbufs(rx_adapter, port_id, queue_id, mbufs, n);
870 nb_rx += n;
871 if (rx_count + nb_rx > max_rx)
872 break;
873 }
874
9f95a23c 875 if (buf->count > 0)
11fdf7f2
TL		 876 rxa_flush_event_buffer(rx_adapter);
877
878 return nb_rx;
879}
880
881static inline void
882rxa_intr_ring_enqueue(struct rte_event_eth_rx_adapter *rx_adapter,
883 void *data)
884{
885 uint16_t port_id;
886 uint16_t queue;
887 int err;
888 union queue_data qd;
889 struct eth_device_info *dev_info;
890 struct eth_rx_queue_info *queue_info;
891 int *intr_enabled;
892
893 qd.ptr = data;
894 port_id = qd.port;
895 queue = qd.queue;
896
897 dev_info = &rx_adapter->eth_devices[port_id];
898 queue_info = &dev_info->rx_queue[queue];
899 rte_spinlock_lock(&rx_adapter->intr_ring_lock);
900 if (rxa_shared_intr(dev_info, queue))
901 intr_enabled = &dev_info->shared_intr_enabled;
902 else
903 intr_enabled = &queue_info->intr_enabled;
904
905 if (*intr_enabled) {
906 *intr_enabled = 0;
907 err = rte_ring_enqueue(rx_adapter->intr_ring, data);
908 /* Entry should always be available.
909 * The ring size equals the maximum number of interrupt
910 * vectors supported (an interrupt vector is shared in
911 * case of shared interrupts)
912 */
913 if (err)
914 RTE_EDEV_LOG_ERR("Failed to enqueue interrupt"
9f95a23c 915 " to ring: %s", strerror(-err));
11fdf7f2
TL		 916 else
917 rte_eth_dev_rx_intr_disable(port_id, queue);
918 }
919 rte_spinlock_unlock(&rx_adapter->intr_ring_lock);
920}
921
922static int
923rxa_intr_ring_check_avail(struct rte_event_eth_rx_adapter *rx_adapter,
924 uint32_t num_intr_vec)
925{
926 if (rx_adapter->num_intr_vec + num_intr_vec >
927 RTE_EVENT_ETH_INTR_RING_SIZE) {
928 RTE_EDEV_LOG_ERR("Exceeded intr ring slots current"
929 " %d needed %d limit %d", rx_adapter->num_intr_vec,
930 num_intr_vec, RTE_EVENT_ETH_INTR_RING_SIZE);
931 return -ENOSPC;
932 }
933
934 return 0;
935}
936
937/* Delete entries for (dev, queue) from the interrupt ring */
938static void
939rxa_intr_ring_del_entries(struct rte_event_eth_rx_adapter *rx_adapter,
940 struct eth_device_info *dev_info,
941 uint16_t rx_queue_id)
942{
943 int i, n;
944 union queue_data qd;
945
946 rte_spinlock_lock(&rx_adapter->intr_ring_lock);
947
948 n = rte_ring_count(rx_adapter->intr_ring);
949 for (i = 0; i < n; i++) {
950 rte_ring_dequeue(rx_adapter->intr_ring, &qd.ptr);
951 if (!rxa_shared_intr(dev_info, rx_queue_id)) {
952 if (qd.port == dev_info->dev->data->port_id &&
953 qd.queue == rx_queue_id)
954 continue;
955 } else {
956 if (qd.port == dev_info->dev->data->port_id)
957 continue;
958 }
959 rte_ring_enqueue(rx_adapter->intr_ring, qd.ptr);
960 }
961
962 rte_spinlock_unlock(&rx_adapter->intr_ring_lock);
963}
964
965/* pthread callback handling interrupt mode receive queues
966 * After receiving an Rx interrupt, it enqueues the port id and queue id of the
967 * interrupting queue to the adapter's ring buffer for interrupt events.
968 * These events are picked up by rxa_intr_ring_dequeue() which is invoked from
969 * the adapter service function.
970 */
971static void *
972rxa_intr_thread(void *arg)
973{
974 struct rte_event_eth_rx_adapter *rx_adapter = arg;
975 struct rte_epoll_event *epoll_events = rx_adapter->epoll_events;
976 int n, i;
977
978 while (1) {
979 n = rte_epoll_wait(rx_adapter->epd, epoll_events,
980 RTE_EVENT_ETH_INTR_RING_SIZE, -1);
981 if (unlikely(n < 0))
982 RTE_EDEV_LOG_ERR("rte_epoll_wait returned error %d",
983 n);
984 for (i = 0; i < n; i++) {
985 rxa_intr_ring_enqueue(rx_adapter,
986 epoll_events[i].epdata.data);
987 }
988 }
989
990 return NULL;
991}
992
993/* Dequeue <port, q> from interrupt ring and enqueue received
994 * mbufs to eventdev
995 */
996static inline uint32_t
997rxa_intr_ring_dequeue(struct rte_event_eth_rx_adapter *rx_adapter)
998{
999 uint32_t n;
1000 uint32_t nb_rx = 0;
1001 int rxq_empty;
1002 struct rte_eth_event_enqueue_buffer *buf;
1003 rte_spinlock_t *ring_lock;
1004 uint8_t max_done = 0;
1005
1006 if (rx_adapter->num_rx_intr == 0)
1007 return 0;
1008
1009 if (rte_ring_count(rx_adapter->intr_ring) == 0
1010 && !rx_adapter->qd_valid)
1011 return 0;
1012
1013 buf = &rx_adapter->event_enqueue_buffer;
1014 ring_lock = &rx_adapter->intr_ring_lock;
1015
1016 if (buf->count >= BATCH_SIZE)
1017 rxa_flush_event_buffer(rx_adapter);
1018
1019 while (BATCH_SIZE <= (RTE_DIM(buf->events) - buf->count)) {
1020 struct eth_device_info *dev_info;
1021 uint16_t port;
1022 uint16_t queue;
1023 union queue_data qd = rx_adapter->qd;
1024 int err;
1025
1026 if (!rx_adapter->qd_valid) {
1027 struct eth_rx_queue_info *queue_info;
1028
1029 rte_spinlock_lock(ring_lock);
1030 err = rte_ring_dequeue(rx_adapter->intr_ring, &qd.ptr);
1031 if (err) {
1032 rte_spinlock_unlock(ring_lock);
1033 break;
1034 }
1035
1036 port = qd.port;
1037 queue = qd.queue;
1038 rx_adapter->qd = qd;
1039 rx_adapter->qd_valid = 1;
1040 dev_info = &rx_adapter->eth_devices[port];
1041 if (rxa_shared_intr(dev_info, queue))
1042 dev_info->shared_intr_enabled = 1;
1043 else {
1044 queue_info = &dev_info->rx_queue[queue];
1045 queue_info->intr_enabled = 1;
1046 }
1047 rte_eth_dev_rx_intr_enable(port, queue);
1048 rte_spinlock_unlock(ring_lock);
1049 } else {
1050 port = qd.port;
1051 queue = qd.queue;
1052
1053 dev_info = &rx_adapter->eth_devices[port];
1054 }
1055
1056 if (rxa_shared_intr(dev_info, queue)) {
1057 uint16_t i;
1058 uint16_t nb_queues;
1059
1060 nb_queues = dev_info->dev->data->nb_rx_queues;
1061 n = 0;
1062 for (i = dev_info->next_q_idx; i < nb_queues; i++) {
1063 uint8_t enq_buffer_full;
1064
1065 if (!rxa_intr_queue(dev_info, i))
1066 continue;
1067 n = rxa_eth_rx(rx_adapter, port, i, nb_rx,
1068 rx_adapter->max_nb_rx,
1069 &rxq_empty);
1070 nb_rx += n;
1071
1072 enq_buffer_full = !rxq_empty && n == 0;
1073 max_done = nb_rx > rx_adapter->max_nb_rx;
1074
1075 if (enq_buffer_full || max_done) {
1076 dev_info->next_q_idx = i;
1077 goto done;
1078 }
1079 }
1080
1081 rx_adapter->qd_valid = 0;
1082
1083 /* Reinitialize for next interrupt */
1084 dev_info->next_q_idx = dev_info->multi_intr_cap ?
1085 RTE_MAX_RXTX_INTR_VEC_ID - 1 :
1086 0;
1087 } else {
1088 n = rxa_eth_rx(rx_adapter, port, queue, nb_rx,
1089 rx_adapter->max_nb_rx,
1090 &rxq_empty);
1091 rx_adapter->qd_valid = !rxq_empty;
1092 nb_rx += n;
1093 if (nb_rx > rx_adapter->max_nb_rx)
1094 break;
1095 }
1096 }
1097
1098done:
1099 rx_adapter->stats.rx_intr_packets += nb_rx;
1100 return nb_rx;
1101}
1102
1103/*
1104 * Polls receive queues added to the event adapter and enqueues received
1105 * packets to the event device.
1106 *
1107 * The receive code enqueues initially to a temporary buffer, the
1108 * temporary buffer is drained anytime it holds >= BATCH_SIZE packets
1109 *
1110 * If there isn't space available in the temporary buffer, packets from the
1111 * Rx queue aren't dequeued from the eth device, this back pressures the
1112 * eth device, in virtual device environments this back pressure is relayed to
1113 * the hypervisor's switching layer where adjustments can be made to deal with
1114 * it.
1115 */
1116static inline uint32_t
1117rxa_poll(struct rte_event_eth_rx_adapter *rx_adapter)
1118{
1119 uint32_t num_queue;
1120 uint32_t nb_rx = 0;
1121 struct rte_eth_event_enqueue_buffer *buf;
1122 uint32_t wrr_pos;
1123 uint32_t max_nb_rx;
1124
1125 wrr_pos = rx_adapter->wrr_pos;
1126 max_nb_rx = rx_adapter->max_nb_rx;
1127 buf = &rx_adapter->event_enqueue_buffer;
11fdf7f2
TL		 1128
1129 /* Iterate through a WRR sequence */
1130 for (num_queue = 0; num_queue < rx_adapter->wrr_len; num_queue++) {
1131 unsigned int poll_idx = rx_adapter->wrr_sched[wrr_pos];
1132 uint16_t qid = rx_adapter->eth_rx_poll[poll_idx].eth_rx_qid;
1133 uint16_t d = rx_adapter->eth_rx_poll[poll_idx].eth_dev_id;
1134
1135 /* Don't do a batch dequeue from the rx queue if there isn't
1136 * enough space in the enqueue buffer.
1137 */
1138 if (buf->count >= BATCH_SIZE)
1139 rxa_flush_event_buffer(rx_adapter);
1140 if (BATCH_SIZE > (ETH_EVENT_BUFFER_SIZE - buf->count)) {
1141 rx_adapter->wrr_pos = wrr_pos;
1142 return nb_rx;
1143 }
1144
1145 nb_rx += rxa_eth_rx(rx_adapter, d, qid, nb_rx, max_nb_rx,
1146 NULL);
1147 if (nb_rx > max_nb_rx) {
1148 rx_adapter->wrr_pos =
1149 (wrr_pos + 1) % rx_adapter->wrr_len;
1150 break;
1151 }
1152
1153 if (++wrr_pos == rx_adapter->wrr_len)
1154 wrr_pos = 0;
1155 }
1156 return nb_rx;
1157}
1158
1159static int
1160rxa_service_func(void *args)
1161{
1162 struct rte_event_eth_rx_adapter *rx_adapter = args;
1163 struct rte_event_eth_rx_adapter_stats *stats;
1164
1165 if (rte_spinlock_trylock(&rx_adapter->rx_lock) == 0)
1166 return 0;
1167 if (!rx_adapter->rxa_started) {
11fdf7f2 1168 rte_spinlock_unlock(&rx_adapter->rx_lock);
9f95a23c 1169 return 0;
11fdf7f2
TL		 1170 }
1171
1172 stats = &rx_adapter->stats;
1173 stats->rx_packets += rxa_intr_ring_dequeue(rx_adapter);
1174 stats->rx_packets += rxa_poll(rx_adapter);
1175 rte_spinlock_unlock(&rx_adapter->rx_lock);
1176 return 0;
1177}
1178
1179static int
1180rte_event_eth_rx_adapter_init(void)
1181{
1182 const char *name = "rte_event_eth_rx_adapter_array";
1183 const struct rte_memzone *mz;
1184 unsigned int sz;
1185
1186 sz = sizeof(*event_eth_rx_adapter) *
1187 RTE_EVENT_ETH_RX_ADAPTER_MAX_INSTANCE;
1188 sz = RTE_ALIGN(sz, RTE_CACHE_LINE_SIZE);
1189
1190 mz = rte_memzone_lookup(name);
1191 if (mz == NULL) {
1192 mz = rte_memzone_reserve_aligned(name, sz, rte_socket_id(), 0,
1193 RTE_CACHE_LINE_SIZE);
1194 if (mz == NULL) {
1195 RTE_EDEV_LOG_ERR("failed to reserve memzone err = %"
1196 PRId32, rte_errno);
1197 return -rte_errno;
1198 }
1199 }
1200
1201 event_eth_rx_adapter = mz->addr;
1202 return 0;
1203}
1204
1205static inline struct rte_event_eth_rx_adapter *
1206rxa_id_to_adapter(uint8_t id)
1207{
1208 return event_eth_rx_adapter ?
1209 event_eth_rx_adapter[id] : NULL;
1210}
1211
1212static int
1213rxa_default_conf_cb(uint8_t id, uint8_t dev_id,
1214 struct rte_event_eth_rx_adapter_conf *conf, void *arg)
1215{
1216 int ret;
1217 struct rte_eventdev *dev;
1218 struct rte_event_dev_config dev_conf;
1219 int started;
1220 uint8_t port_id;
1221 struct rte_event_port_conf *port_conf = arg;
1222 struct rte_event_eth_rx_adapter *rx_adapter = rxa_id_to_adapter(id);
1223
1224 dev = &rte_eventdevs[rx_adapter->eventdev_id];
1225 dev_conf = dev->data->dev_conf;
1226
1227 started = dev->data->dev_started;
1228 if (started)
1229 rte_event_dev_stop(dev_id);
1230 port_id = dev_conf.nb_event_ports;
1231 dev_conf.nb_event_ports += 1;
1232 ret = rte_event_dev_configure(dev_id, &dev_conf);
1233 if (ret) {
1234 RTE_EDEV_LOG_ERR("failed to configure event dev %u\n",
1235 dev_id);
1236 if (started) {
1237 if (rte_event_dev_start(dev_id))
1238 return -EIO;
1239 }
1240 return ret;
1241 }
1242
1243 ret = rte_event_port_setup(dev_id, port_id, port_conf);
1244 if (ret) {
1245 RTE_EDEV_LOG_ERR("failed to setup event port %u\n",
1246 port_id);
1247 return ret;
1248 }
1249
1250 conf->event_port_id = port_id;
1251 conf->max_nb_rx = 128;
1252 if (started)
1253 ret = rte_event_dev_start(dev_id);
1254 rx_adapter->default_cb_arg = 1;
1255 return ret;
1256}
1257
1258static int
1259rxa_epoll_create1(void)
1260{
1261#if defined(LINUX)
1262 int fd;
1263 fd = epoll_create1(EPOLL_CLOEXEC);
1264 return fd < 0 ? -errno : fd;
1265#elif defined(BSD)
1266 return -ENOTSUP;
1267#endif
1268}
1269
1270static int
1271rxa_init_epd(struct rte_event_eth_rx_adapter *rx_adapter)
1272{
1273 if (rx_adapter->epd != INIT_FD)
1274 return 0;
1275
1276 rx_adapter->epd = rxa_epoll_create1();
1277 if (rx_adapter->epd < 0) {
1278 int err = rx_adapter->epd;
1279 rx_adapter->epd = INIT_FD;
1280 RTE_EDEV_LOG_ERR("epoll_create1() failed, err %d", err);
1281 return err;
1282 }
1283
1284 return 0;
1285}
1286
1287static int
1288rxa_create_intr_thread(struct rte_event_eth_rx_adapter *rx_adapter)
1289{
1290 int err;
1291 char thread_name[RTE_MAX_THREAD_NAME_LEN];
1292
1293 if (rx_adapter->intr_ring)
1294 return 0;
1295
1296 rx_adapter->intr_ring = rte_ring_create("intr_ring",
1297 RTE_EVENT_ETH_INTR_RING_SIZE,
1298 rte_socket_id(), 0);
1299 if (!rx_adapter->intr_ring)
1300 return -ENOMEM;
1301
1302 rx_adapter->epoll_events = rte_zmalloc_socket(rx_adapter->mem_name,
1303 RTE_EVENT_ETH_INTR_RING_SIZE *
1304 sizeof(struct rte_epoll_event),
1305 RTE_CACHE_LINE_SIZE,
1306 rx_adapter->socket_id);
1307 if (!rx_adapter->epoll_events) {
1308 err = -ENOMEM;
1309 goto error;
1310 }
1311
1312 rte_spinlock_init(&rx_adapter->intr_ring_lock);
1313
1314 snprintf(thread_name, RTE_MAX_THREAD_NAME_LEN,
1315 "rx-intr-thread-%d", rx_adapter->id);
1316
1317 err = rte_ctrl_thread_create(&rx_adapter->rx_intr_thread, thread_name,
1318 NULL, rxa_intr_thread, rx_adapter);
1319 if (!err) {
1320 rte_thread_setname(rx_adapter->rx_intr_thread, thread_name);
1321 return 0;
1322 }
1323
1324 RTE_EDEV_LOG_ERR("Failed to create interrupt thread err = %d\n", err);
1325error:
1326 rte_ring_free(rx_adapter->intr_ring);
1327 rx_adapter->intr_ring = NULL;
1328 rx_adapter->epoll_events = NULL;
1329 return err;
1330}
1331
1332static int
1333rxa_destroy_intr_thread(struct rte_event_eth_rx_adapter *rx_adapter)
1334{
1335 int err;
1336
1337 err = pthread_cancel(rx_adapter->rx_intr_thread);
1338 if (err)
1339 RTE_EDEV_LOG_ERR("Can't cancel interrupt thread err = %d\n",
1340 err);
1341
1342 err = pthread_join(rx_adapter->rx_intr_thread, NULL);
1343 if (err)
1344 RTE_EDEV_LOG_ERR("Can't join interrupt thread err = %d\n", err);
1345
1346 rte_free(rx_adapter->epoll_events);
1347 rte_ring_free(rx_adapter->intr_ring);
1348 rx_adapter->intr_ring = NULL;
1349 rx_adapter->epoll_events = NULL;
1350 return 0;
1351}
1352
1353static int
1354rxa_free_intr_resources(struct rte_event_eth_rx_adapter *rx_adapter)
1355{
1356 int ret;
1357
1358 if (rx_adapter->num_rx_intr == 0)
1359 return 0;
1360
1361 ret = rxa_destroy_intr_thread(rx_adapter);
1362 if (ret)
1363 return ret;
1364
1365 close(rx_adapter->epd);
1366 rx_adapter->epd = INIT_FD;
1367
1368 return ret;
1369}
1370
1371static int
1372rxa_disable_intr(struct rte_event_eth_rx_adapter *rx_adapter,
1373 struct eth_device_info *dev_info,
1374 uint16_t rx_queue_id)
1375{
1376 int err;
1377 uint16_t eth_dev_id = dev_info->dev->data->port_id;
1378 int sintr = rxa_shared_intr(dev_info, rx_queue_id);
1379
1380 err = rte_eth_dev_rx_intr_disable(eth_dev_id, rx_queue_id);
1381 if (err) {
1382 RTE_EDEV_LOG_ERR("Could not disable interrupt for Rx queue %u",
1383 rx_queue_id);
1384 return err;
1385 }
1386
1387 err = rte_eth_dev_rx_intr_ctl_q(eth_dev_id, rx_queue_id,
1388 rx_adapter->epd,
1389 RTE_INTR_EVENT_DEL,
1390 0);
1391 if (err)
1392 RTE_EDEV_LOG_ERR("Interrupt event deletion failed %d", err);
1393
1394 if (sintr)
1395 dev_info->rx_queue[rx_queue_id].intr_enabled = 0;
1396 else
1397 dev_info->shared_intr_enabled = 0;
1398 return err;
1399}
1400
1401static int
1402rxa_del_intr_queue(struct rte_event_eth_rx_adapter *rx_adapter,
1403 struct eth_device_info *dev_info,
1404 int rx_queue_id)
1405{
1406 int err;
1407 int i;
1408 int s;
1409
1410 if (dev_info->nb_rx_intr == 0)
1411 return 0;
1412
1413 err = 0;
1414 if (rx_queue_id == -1) {
1415 s = dev_info->nb_shared_intr;
1416 for (i = 0; i < dev_info->nb_rx_intr; i++) {
1417 int sintr;
1418 uint16_t q;
1419
1420 q = dev_info->intr_queue[i];
1421 sintr = rxa_shared_intr(dev_info, q);
1422 s -= sintr;
1423
1424 if (!sintr || s == 0) {
1425
1426 err = rxa_disable_intr(rx_adapter, dev_info,
1427 q);
1428 if (err)
1429 return err;
1430 rxa_intr_ring_del_entries(rx_adapter, dev_info,
1431 q);
1432 }
1433 }
1434 } else {
1435 if (!rxa_intr_queue(dev_info, rx_queue_id))
1436 return 0;
1437 if (!rxa_shared_intr(dev_info, rx_queue_id) ||
1438 dev_info->nb_shared_intr == 1) {
1439 err = rxa_disable_intr(rx_adapter, dev_info,
1440 rx_queue_id);
1441 if (err)
1442 return err;
1443 rxa_intr_ring_del_entries(rx_adapter, dev_info,
1444 rx_queue_id);
1445 }
1446
1447 for (i = 0; i < dev_info->nb_rx_intr; i++) {
1448 if (dev_info->intr_queue[i] == rx_queue_id) {
1449 for (; i < dev_info->nb_rx_intr - 1; i++)
1450 dev_info->intr_queue[i] =
1451 dev_info->intr_queue[i + 1];
1452 break;
1453 }
1454 }
1455 }
1456
1457 return err;
1458}
1459
1460static int
1461rxa_config_intr(struct rte_event_eth_rx_adapter *rx_adapter,
1462 struct eth_device_info *dev_info,
1463 uint16_t rx_queue_id)
1464{
1465 int err, err1;
1466 uint16_t eth_dev_id = dev_info->dev->data->port_id;
1467 union queue_data qd;
1468 int init_fd;
1469 uint16_t *intr_queue;
1470 int sintr = rxa_shared_intr(dev_info, rx_queue_id);
1471
1472 if (rxa_intr_queue(dev_info, rx_queue_id))
1473 return 0;
1474
1475 intr_queue = dev_info->intr_queue;
1476 if (dev_info->intr_queue == NULL) {
1477 size_t len =
1478 dev_info->dev->data->nb_rx_queues * sizeof(uint16_t);
1479 dev_info->intr_queue =
1480 rte_zmalloc_socket(
1481 rx_adapter->mem_name,
1482 len,
1483 0,
1484 rx_adapter->socket_id);
1485 if (dev_info->intr_queue == NULL)
1486 return -ENOMEM;
1487 }
1488
1489 init_fd = rx_adapter->epd;
1490 err = rxa_init_epd(rx_adapter);
1491 if (err)
1492 goto err_free_queue;
1493
1494 qd.port = eth_dev_id;
1495 qd.queue = rx_queue_id;
1496
1497 err = rte_eth_dev_rx_intr_ctl_q(eth_dev_id, rx_queue_id,
1498 rx_adapter->epd,
1499 RTE_INTR_EVENT_ADD,
1500 qd.ptr);
1501 if (err) {
1502 RTE_EDEV_LOG_ERR("Failed to add interrupt event for"
1503 " Rx Queue %u err %d", rx_queue_id, err);
1504 goto err_del_fd;
1505 }
1506
1507 err = rte_eth_dev_rx_intr_enable(eth_dev_id, rx_queue_id);
1508 if (err) {
1509 RTE_EDEV_LOG_ERR("Could not enable interrupt for"
1510 " Rx Queue %u err %d", rx_queue_id, err);
1511
1512 goto err_del_event;
1513 }
1514
1515 err = rxa_create_intr_thread(rx_adapter);
1516 if (!err) {
1517 if (sintr)
1518 dev_info->shared_intr_enabled = 1;
1519 else
1520 dev_info->rx_queue[rx_queue_id].intr_enabled = 1;
1521 return 0;
1522 }
1523
1524
1525 err = rte_eth_dev_rx_intr_disable(eth_dev_id, rx_queue_id);
1526 if (err)
1527 RTE_EDEV_LOG_ERR("Could not disable interrupt for"
1528 " Rx Queue %u err %d", rx_queue_id, err);
1529err_del_event:
1530 err1 = rte_eth_dev_rx_intr_ctl_q(eth_dev_id, rx_queue_id,
1531 rx_adapter->epd,
1532 RTE_INTR_EVENT_DEL,
1533 0);
1534 if (err1) {
1535 RTE_EDEV_LOG_ERR("Could not delete event for"
1536 " Rx Queue %u err %d", rx_queue_id, err1);
1537 }
1538err_del_fd:
1539 if (init_fd == INIT_FD) {
1540 close(rx_adapter->epd);
1541 rx_adapter->epd = -1;
1542 }
1543err_free_queue:
1544 if (intr_queue == NULL)
1545 rte_free(dev_info->intr_queue);
1546
1547 return err;
1548}
1549
1550static int
1551rxa_add_intr_queue(struct rte_event_eth_rx_adapter *rx_adapter,
1552 struct eth_device_info *dev_info,
1553 int rx_queue_id)
1554
1555{
1556 int i, j, err;
1557 int si = -1;
1558 int shared_done = (dev_info->nb_shared_intr > 0);
1559
1560 if (rx_queue_id != -1) {
1561 if (rxa_shared_intr(dev_info, rx_queue_id) && shared_done)
1562 return 0;
1563 return rxa_config_intr(rx_adapter, dev_info, rx_queue_id);
1564 }
1565
1566 err = 0;
1567 for (i = 0; i < dev_info->dev->data->nb_rx_queues; i++) {
1568
1569 if (rxa_shared_intr(dev_info, i) && shared_done)
1570 continue;
1571
1572 err = rxa_config_intr(rx_adapter, dev_info, i);
1573
1574 shared_done = err == 0 && rxa_shared_intr(dev_info, i);
1575 if (shared_done) {
1576 si = i;
1577 dev_info->shared_intr_enabled = 1;
1578 }
1579 if (err)
1580 break;
1581 }
1582
1583 if (err == 0)
1584 return 0;
1585
1586 shared_done = (dev_info->nb_shared_intr > 0);
1587 for (j = 0; j < i; j++) {
1588 if (rxa_intr_queue(dev_info, j))
1589 continue;
1590 if (rxa_shared_intr(dev_info, j) && si != j)
1591 continue;
1592 err = rxa_disable_intr(rx_adapter, dev_info, j);
1593 if (err)
1594 break;
1595
1596 }
1597
1598 return err;
1599}
1600
1601
1602static int
1603rxa_init_service(struct rte_event_eth_rx_adapter *rx_adapter, uint8_t id)
1604{
1605 int ret;
1606 struct rte_service_spec service;
1607 struct rte_event_eth_rx_adapter_conf rx_adapter_conf;
1608
1609 if (rx_adapter->service_inited)
1610 return 0;
1611
1612 memset(&service, 0, sizeof(service));
1613 snprintf(service.name, ETH_RX_ADAPTER_SERVICE_NAME_LEN,
1614 "rte_event_eth_rx_adapter_%d", id);
1615 service.socket_id = rx_adapter->socket_id;
1616 service.callback = rxa_service_func;
1617 service.callback_userdata = rx_adapter;
1618 /* Service function handles locking for queue add/del updates */
1619 service.capabilities = RTE_SERVICE_CAP_MT_SAFE;
1620 ret = rte_service_component_register(&service, &rx_adapter->service_id);
1621 if (ret) {
1622 RTE_EDEV_LOG_ERR("failed to register service %s err = %" PRId32,
1623 service.name, ret);
1624 return ret;
1625 }
1626
1627 ret = rx_adapter->conf_cb(id, rx_adapter->eventdev_id,
1628 &rx_adapter_conf, rx_adapter->conf_arg);
1629 if (ret) {
1630 RTE_EDEV_LOG_ERR("configuration callback failed err = %" PRId32,
1631 ret);
1632 goto err_done;
1633 }
1634 rx_adapter->event_port_id = rx_adapter_conf.event_port_id;
1635 rx_adapter->max_nb_rx = rx_adapter_conf.max_nb_rx;
1636 rx_adapter->service_inited = 1;
1637 rx_adapter->epd = INIT_FD;
1638 return 0;
1639
1640err_done:
1641 rte_service_component_unregister(rx_adapter->service_id);
1642 return ret;
1643}
1644
1645static void
1646rxa_update_queue(struct rte_event_eth_rx_adapter *rx_adapter,
1647 struct eth_device_info *dev_info,
1648 int32_t rx_queue_id,
1649 uint8_t add)
1650{
1651 struct eth_rx_queue_info *queue_info;
1652 int enabled;
1653 uint16_t i;
1654
1655 if (dev_info->rx_queue == NULL)
1656 return;
1657
1658 if (rx_queue_id == -1) {
1659 for (i = 0; i < dev_info->dev->data->nb_rx_queues; i++)
1660 rxa_update_queue(rx_adapter, dev_info, i, add);
1661 } else {
1662 queue_info = &dev_info->rx_queue[rx_queue_id];
1663 enabled = queue_info->queue_enabled;
1664 if (add) {
1665 rx_adapter->nb_queues += !enabled;
1666 dev_info->nb_dev_queues += !enabled;
1667 } else {
1668 rx_adapter->nb_queues -= enabled;
1669 dev_info->nb_dev_queues -= enabled;
1670 }
1671 queue_info->queue_enabled = !!add;
1672 }
1673}
1674
1675static void
1676rxa_sw_del(struct rte_event_eth_rx_adapter *rx_adapter,
1677 struct eth_device_info *dev_info,
1678 int32_t rx_queue_id)
1679{
1680 int pollq;
1681 int intrq;
1682 int sintrq;
1683
1684
1685 if (rx_adapter->nb_queues == 0)
1686 return;
1687
1688 if (rx_queue_id == -1) {
1689 uint16_t nb_rx_queues;
1690 uint16_t i;
1691
1692 nb_rx_queues = dev_info->dev->data->nb_rx_queues;
1693 for (i = 0; i < nb_rx_queues; i++)
1694 rxa_sw_del(rx_adapter, dev_info, i);
1695 return;
1696 }
1697
1698 pollq = rxa_polled_queue(dev_info, rx_queue_id);
1699 intrq = rxa_intr_queue(dev_info, rx_queue_id);
1700 sintrq = rxa_shared_intr(dev_info, rx_queue_id);
1701 rxa_update_queue(rx_adapter, dev_info, rx_queue_id, 0);
1702 rx_adapter->num_rx_polled -= pollq;
1703 dev_info->nb_rx_poll -= pollq;
1704 rx_adapter->num_rx_intr -= intrq;
1705 dev_info->nb_rx_intr -= intrq;
1706 dev_info->nb_shared_intr -= intrq && sintrq;
1707}
1708
1709static void
1710rxa_add_queue(struct rte_event_eth_rx_adapter *rx_adapter,
1711 struct eth_device_info *dev_info,
1712 int32_t rx_queue_id,
1713 const struct rte_event_eth_rx_adapter_queue_conf *conf)
1714{
1715 struct eth_rx_queue_info *queue_info;
1716 const struct rte_event *ev = &conf->ev;
1717 int pollq;
1718 int intrq;
1719 int sintrq;
1720
1721 if (rx_queue_id == -1) {
1722 uint16_t nb_rx_queues;
1723 uint16_t i;
1724
1725 nb_rx_queues = dev_info->dev->data->nb_rx_queues;
1726 for (i = 0; i < nb_rx_queues; i++)
1727 rxa_add_queue(rx_adapter, dev_info, i, conf);
1728 return;
1729 }
1730
1731 pollq = rxa_polled_queue(dev_info, rx_queue_id);
1732 intrq = rxa_intr_queue(dev_info, rx_queue_id);
1733 sintrq = rxa_shared_intr(dev_info, rx_queue_id);
1734
1735 queue_info = &dev_info->rx_queue[rx_queue_id];
1736 queue_info->event_queue_id = ev->queue_id;
1737 queue_info->sched_type = ev->sched_type;
1738 queue_info->priority = ev->priority;
1739 queue_info->wt = conf->servicing_weight;
1740
1741 if (conf->rx_queue_flags &
1742 RTE_EVENT_ETH_RX_ADAPTER_QUEUE_FLOW_ID_VALID) {
1743 queue_info->flow_id = ev->flow_id;
1744 queue_info->flow_id_mask = ~0;
1745 }
1746
1747 rxa_update_queue(rx_adapter, dev_info, rx_queue_id, 1);
1748 if (rxa_polled_queue(dev_info, rx_queue_id)) {
1749 rx_adapter->num_rx_polled += !pollq;
1750 dev_info->nb_rx_poll += !pollq;
1751 rx_adapter->num_rx_intr -= intrq;
1752 dev_info->nb_rx_intr -= intrq;
1753 dev_info->nb_shared_intr -= intrq && sintrq;
1754 }
1755
1756 if (rxa_intr_queue(dev_info, rx_queue_id)) {
1757 rx_adapter->num_rx_polled -= pollq;
1758 dev_info->nb_rx_poll -= pollq;
1759 rx_adapter->num_rx_intr += !intrq;
1760 dev_info->nb_rx_intr += !intrq;
1761 dev_info->nb_shared_intr += !intrq && sintrq;
1762 if (dev_info->nb_shared_intr == 1) {
1763 if (dev_info->multi_intr_cap)
1764 dev_info->next_q_idx =
1765 RTE_MAX_RXTX_INTR_VEC_ID - 1;
1766 else
1767 dev_info->next_q_idx = 0;
1768 }
1769 }
1770}
1771
1772static int rxa_sw_add(struct rte_event_eth_rx_adapter *rx_adapter,
1773 uint16_t eth_dev_id,
1774 int rx_queue_id,
1775 const struct rte_event_eth_rx_adapter_queue_conf *queue_conf)
1776{
1777 struct eth_device_info *dev_info = &rx_adapter->eth_devices[eth_dev_id];
1778 struct rte_event_eth_rx_adapter_queue_conf temp_conf;
1779 int ret;
1780 struct eth_rx_poll_entry *rx_poll;
1781 struct eth_rx_queue_info *rx_queue;
1782 uint32_t *rx_wrr;
1783 uint16_t nb_rx_queues;
1784 uint32_t nb_rx_poll, nb_wrr;
1785 uint32_t nb_rx_intr;
1786 int num_intr_vec;
1787 uint16_t wt;
1788
1789 if (queue_conf->servicing_weight == 0) {
1790 struct rte_eth_dev_data *data = dev_info->dev->data;
1791
1792 temp_conf = *queue_conf;
1793 if (!data->dev_conf.intr_conf.rxq) {
1794 /* If Rx interrupts are disabled set wt = 1 */
1795 temp_conf.servicing_weight = 1;
1796 }
1797 queue_conf = &temp_conf;
1798 }
1799
1800 nb_rx_queues = dev_info->dev->data->nb_rx_queues;
1801 rx_queue = dev_info->rx_queue;
1802 wt = queue_conf->servicing_weight;
1803
1804 if (dev_info->rx_queue == NULL) {
1805 dev_info->rx_queue =
1806 rte_zmalloc_socket(rx_adapter->mem_name,
1807 nb_rx_queues *
1808 sizeof(struct eth_rx_queue_info), 0,
1809 rx_adapter->socket_id);
1810 if (dev_info->rx_queue == NULL)
1811 return -ENOMEM;
1812 }
1813 rx_wrr = NULL;
1814 rx_poll = NULL;
1815
1816 rxa_calc_nb_post_add(rx_adapter, dev_info, rx_queue_id,
1817 queue_conf->servicing_weight,
1818 &nb_rx_poll, &nb_rx_intr, &nb_wrr);
1819
1820 if (dev_info->dev->intr_handle)
1821 dev_info->multi_intr_cap =
1822 rte_intr_cap_multiple(dev_info->dev->intr_handle);
1823
1824 ret = rxa_alloc_poll_arrays(rx_adapter, nb_rx_poll, nb_wrr,
1825 &rx_poll, &rx_wrr);
1826 if (ret)
1827 goto err_free_rxqueue;
1828
1829 if (wt == 0) {
1830 num_intr_vec = rxa_nb_intr_vect(dev_info, rx_queue_id, 1);
1831
1832 ret = rxa_intr_ring_check_avail(rx_adapter, num_intr_vec);
1833 if (ret)
1834 goto err_free_rxqueue;
1835
1836 ret = rxa_add_intr_queue(rx_adapter, dev_info, rx_queue_id);
1837 if (ret)
1838 goto err_free_rxqueue;
1839 } else {
1840
1841 num_intr_vec = 0;
1842 if (rx_adapter->num_rx_intr > nb_rx_intr) {
1843 num_intr_vec = rxa_nb_intr_vect(dev_info,
1844 rx_queue_id, 0);
1845 /* interrupt based queues are being converted to
1846 * poll mode queues, delete the interrupt configuration
1847 * for those.
1848 */
1849 ret = rxa_del_intr_queue(rx_adapter,
1850 dev_info, rx_queue_id);
1851 if (ret)
1852 goto err_free_rxqueue;
1853 }
1854 }
1855
1856 if (nb_rx_intr == 0) {
1857 ret = rxa_free_intr_resources(rx_adapter);
1858 if (ret)
1859 goto err_free_rxqueue;
1860 }
1861
1862 if (wt == 0) {
1863 uint16_t i;
1864
1865 if (rx_queue_id == -1) {
1866 for (i = 0; i < dev_info->dev->data->nb_rx_queues; i++)
1867 dev_info->intr_queue[i] = i;
1868 } else {
1869 if (!rxa_intr_queue(dev_info, rx_queue_id))
1870 dev_info->intr_queue[nb_rx_intr - 1] =
1871 rx_queue_id;
1872 }
1873 }
1874
1875
1876
1877 rxa_add_queue(rx_adapter, dev_info, rx_queue_id, queue_conf);
1878 rxa_calc_wrr_sequence(rx_adapter, rx_poll, rx_wrr);
1879
1880 rte_free(rx_adapter->eth_rx_poll);
1881 rte_free(rx_adapter->wrr_sched);
1882
1883 rx_adapter->eth_rx_poll = rx_poll;
1884 rx_adapter->wrr_sched = rx_wrr;
1885 rx_adapter->wrr_len = nb_wrr;
1886 rx_adapter->num_intr_vec += num_intr_vec;
1887 return 0;
1888
1889err_free_rxqueue:
1890 if (rx_queue == NULL) {
1891 rte_free(dev_info->rx_queue);
1892 dev_info->rx_queue = NULL;
1893 }
1894
1895 rte_free(rx_poll);
1896 rte_free(rx_wrr);
1897
1898 return 0;
1899}
1900
1901static int
1902rxa_ctrl(uint8_t id, int start)
1903{
1904 struct rte_event_eth_rx_adapter *rx_adapter;
1905 struct rte_eventdev *dev;
1906 struct eth_device_info *dev_info;
1907 uint32_t i;
1908 int use_service = 0;
1909 int stop = !start;
1910
1911 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
1912 rx_adapter = rxa_id_to_adapter(id);
1913 if (rx_adapter == NULL)
1914 return -EINVAL;
1915
1916 dev = &rte_eventdevs[rx_adapter->eventdev_id];
1917
1918 RTE_ETH_FOREACH_DEV(i) {
1919 dev_info = &rx_adapter->eth_devices[i];
1920 /* if start check for num dev queues */
1921 if (start && !dev_info->nb_dev_queues)
1922 continue;
1923 /* if stop check if dev has been started */
1924 if (stop && !dev_info->dev_rx_started)
1925 continue;
1926 use_service |= !dev_info->internal_event_port;
1927 dev_info->dev_rx_started = start;
1928 if (dev_info->internal_event_port == 0)
1929 continue;
1930 start ? (*dev->dev_ops->eth_rx_adapter_start)(dev,
1931 &rte_eth_devices[i]) :
1932 (*dev->dev_ops->eth_rx_adapter_stop)(dev,
1933 &rte_eth_devices[i]);
1934 }
1935
1936 if (use_service) {
1937 rte_spinlock_lock(&rx_adapter->rx_lock);
1938 rx_adapter->rxa_started = start;
1939 rte_service_runstate_set(rx_adapter->service_id, start);
1940 rte_spinlock_unlock(&rx_adapter->rx_lock);
1941 }
1942
1943 return 0;
1944}
1945
1946int
1947rte_event_eth_rx_adapter_create_ext(uint8_t id, uint8_t dev_id,
1948 rte_event_eth_rx_adapter_conf_cb conf_cb,
1949 void *conf_arg)
1950{
1951 struct rte_event_eth_rx_adapter *rx_adapter;
1952 int ret;
1953 int socket_id;
1954 uint16_t i;
1955 char mem_name[ETH_RX_ADAPTER_SERVICE_NAME_LEN];
1956 const uint8_t default_rss_key[] = {
1957 0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
1958 0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
1959 0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
1960 0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
1961 0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa,
1962 };
1963
1964 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
1965 RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL);
1966 if (conf_cb == NULL)
1967 return -EINVAL;
1968
1969 if (event_eth_rx_adapter == NULL) {
1970 ret = rte_event_eth_rx_adapter_init();
1971 if (ret)
1972 return ret;
1973 }
1974
1975 rx_adapter = rxa_id_to_adapter(id);
1976 if (rx_adapter != NULL) {
1977 RTE_EDEV_LOG_ERR("Eth Rx adapter exists id = %" PRIu8, id);
1978 return -EEXIST;
1979 }
1980
1981 socket_id = rte_event_dev_socket_id(dev_id);
1982 snprintf(mem_name, ETH_RX_ADAPTER_MEM_NAME_LEN,
1983 "rte_event_eth_rx_adapter_%d",
1984 id);
1985
1986 rx_adapter = rte_zmalloc_socket(mem_name, sizeof(*rx_adapter),
1987 RTE_CACHE_LINE_SIZE, socket_id);
1988 if (rx_adapter == NULL) {
1989 RTE_EDEV_LOG_ERR("failed to get mem for rx adapter");
1990 return -ENOMEM;
1991 }
1992
1993 rx_adapter->eventdev_id = dev_id;
1994 rx_adapter->socket_id = socket_id;
1995 rx_adapter->conf_cb = conf_cb;
1996 rx_adapter->conf_arg = conf_arg;
1997 rx_adapter->id = id;
1998 strcpy(rx_adapter->mem_name, mem_name);
1999 rx_adapter->eth_devices = rte_zmalloc_socket(rx_adapter->mem_name,
9f95a23c 2000 RTE_MAX_ETHPORTS *
11fdf7f2
TL		 2001 sizeof(struct eth_device_info), 0,
2002 socket_id);
2003 rte_convert_rss_key((const uint32_t *)default_rss_key,
2004 (uint32_t *)rx_adapter->rss_key_be,
2005 RTE_DIM(default_rss_key));
2006
2007 if (rx_adapter->eth_devices == NULL) {
2008 RTE_EDEV_LOG_ERR("failed to get mem for eth devices\n");
2009 rte_free(rx_adapter);
2010 return -ENOMEM;
2011 }
2012 rte_spinlock_init(&rx_adapter->rx_lock);
9f95a23c 2013 for (i = 0; i < RTE_MAX_ETHPORTS; i++)
11fdf7f2
TL		 2014 rx_adapter->eth_devices[i].dev = &rte_eth_devices[i];
2015
2016 event_eth_rx_adapter[id] = rx_adapter;
2017 if (conf_cb == rxa_default_conf_cb)
2018 rx_adapter->default_cb_arg = 1;
2019 return 0;
2020}
2021
2022int
2023rte_event_eth_rx_adapter_create(uint8_t id, uint8_t dev_id,
2024 struct rte_event_port_conf *port_config)
2025{
2026 struct rte_event_port_conf *pc;
2027 int ret;
2028
2029 if (port_config == NULL)
2030 return -EINVAL;
2031 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2032
2033 pc = rte_malloc(NULL, sizeof(*pc), 0);
2034 if (pc == NULL)
2035 return -ENOMEM;
2036 *pc = *port_config;
2037 ret = rte_event_eth_rx_adapter_create_ext(id, dev_id,
2038 rxa_default_conf_cb,
2039 pc);
2040 if (ret)
2041 rte_free(pc);
2042 return ret;
2043}
2044
2045int
2046rte_event_eth_rx_adapter_free(uint8_t id)
2047{
2048 struct rte_event_eth_rx_adapter *rx_adapter;
2049
2050 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2051
2052 rx_adapter = rxa_id_to_adapter(id);
2053 if (rx_adapter == NULL)
2054 return -EINVAL;
2055
2056 if (rx_adapter->nb_queues) {
2057 RTE_EDEV_LOG_ERR("%" PRIu16 " Rx queues not deleted",
2058 rx_adapter->nb_queues);
2059 return -EBUSY;
2060 }
2061
2062 if (rx_adapter->default_cb_arg)
2063 rte_free(rx_adapter->conf_arg);
2064 rte_free(rx_adapter->eth_devices);
2065 rte_free(rx_adapter);
2066 event_eth_rx_adapter[id] = NULL;
2067
2068 return 0;
2069}
2070
2071int
2072rte_event_eth_rx_adapter_queue_add(uint8_t id,
2073 uint16_t eth_dev_id,
2074 int32_t rx_queue_id,
2075 const struct rte_event_eth_rx_adapter_queue_conf *queue_conf)
2076{
2077 int ret;
2078 uint32_t cap;
2079 struct rte_event_eth_rx_adapter *rx_adapter;
2080 struct rte_eventdev *dev;
2081 struct eth_device_info *dev_info;
2082
2083 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2084 RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
2085
2086 rx_adapter = rxa_id_to_adapter(id);
2087 if ((rx_adapter == NULL) || (queue_conf == NULL))
2088 return -EINVAL;
2089
2090 dev = &rte_eventdevs[rx_adapter->eventdev_id];
2091 ret = rte_event_eth_rx_adapter_caps_get(rx_adapter->eventdev_id,
2092 eth_dev_id,
2093 &cap);
2094 if (ret) {
2095 RTE_EDEV_LOG_ERR("Failed to get adapter caps edev %" PRIu8
2096 "eth port %" PRIu16, id, eth_dev_id);
2097 return ret;
2098 }
2099
2100 if ((cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID) == 0
2101 && (queue_conf->rx_queue_flags &
2102 RTE_EVENT_ETH_RX_ADAPTER_QUEUE_FLOW_ID_VALID)) {
2103 RTE_EDEV_LOG_ERR("Flow ID override is not supported,"
2104 " eth port: %" PRIu16 " adapter id: %" PRIu8,
2105 eth_dev_id, id);
2106 return -EINVAL;
2107 }
2108
2109 if ((cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ) == 0 &&
2110 (rx_queue_id != -1)) {
2111 RTE_EDEV_LOG_ERR("Rx queues can only be connected to single "
2112 "event queue, eth port: %" PRIu16 " adapter id: %"
2113 PRIu8, eth_dev_id, id);
2114 return -EINVAL;
2115 }
2116
2117 if (rx_queue_id != -1 && (uint16_t)rx_queue_id >=
2118 rte_eth_devices[eth_dev_id].data->nb_rx_queues) {
2119 RTE_EDEV_LOG_ERR("Invalid rx queue_id %" PRIu16,
2120 (uint16_t)rx_queue_id);
2121 return -EINVAL;
2122 }
2123
2124 dev_info = &rx_adapter->eth_devices[eth_dev_id];
2125
2126 if (cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT) {
2127 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->eth_rx_adapter_queue_add,
2128 -ENOTSUP);
2129 if (dev_info->rx_queue == NULL) {
2130 dev_info->rx_queue =
2131 rte_zmalloc_socket(rx_adapter->mem_name,
2132 dev_info->dev->data->nb_rx_queues *
2133 sizeof(struct eth_rx_queue_info), 0,
2134 rx_adapter->socket_id);
2135 if (dev_info->rx_queue == NULL)
2136 return -ENOMEM;
2137 }
2138
2139 ret = (*dev->dev_ops->eth_rx_adapter_queue_add)(dev,
2140 &rte_eth_devices[eth_dev_id],
2141 rx_queue_id, queue_conf);
2142 if (ret == 0) {
2143 dev_info->internal_event_port = 1;
2144 rxa_update_queue(rx_adapter,
2145 &rx_adapter->eth_devices[eth_dev_id],
2146 rx_queue_id,
2147 1);
2148 }
2149 } else {
2150 rte_spinlock_lock(&rx_adapter->rx_lock);
2151 dev_info->internal_event_port = 0;
2152 ret = rxa_init_service(rx_adapter, id);
2153 if (ret == 0) {
2154 uint32_t service_id = rx_adapter->service_id;
2155 ret = rxa_sw_add(rx_adapter, eth_dev_id, rx_queue_id,
2156 queue_conf);
2157 rte_service_component_runstate_set(service_id,
2158 rxa_sw_adapter_queue_count(rx_adapter));
2159 }
2160 rte_spinlock_unlock(&rx_adapter->rx_lock);
2161 }
2162
2163 if (ret)
2164 return ret;
2165
2166 return 0;
2167}
2168
2169int
2170rte_event_eth_rx_adapter_queue_del(uint8_t id, uint16_t eth_dev_id,
2171 int32_t rx_queue_id)
2172{
2173 int ret = 0;
2174 struct rte_eventdev *dev;
2175 struct rte_event_eth_rx_adapter *rx_adapter;
2176 struct eth_device_info *dev_info;
2177 uint32_t cap;
2178 uint32_t nb_rx_poll = 0;
2179 uint32_t nb_wrr = 0;
2180 uint32_t nb_rx_intr;
2181 struct eth_rx_poll_entry *rx_poll = NULL;
2182 uint32_t *rx_wrr = NULL;
2183 int num_intr_vec;
2184
2185 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2186 RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
2187
2188 rx_adapter = rxa_id_to_adapter(id);
2189 if (rx_adapter == NULL)
2190 return -EINVAL;
2191
2192 dev = &rte_eventdevs[rx_adapter->eventdev_id];
2193 ret = rte_event_eth_rx_adapter_caps_get(rx_adapter->eventdev_id,
2194 eth_dev_id,
2195 &cap);
2196 if (ret)
2197 return ret;
2198
2199 if (rx_queue_id != -1 && (uint16_t)rx_queue_id >=
2200 rte_eth_devices[eth_dev_id].data->nb_rx_queues) {
2201 RTE_EDEV_LOG_ERR("Invalid rx queue_id %" PRIu16,
2202 (uint16_t)rx_queue_id);
2203 return -EINVAL;
2204 }
2205
2206 dev_info = &rx_adapter->eth_devices[eth_dev_id];
2207
2208 if (cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT) {
2209 RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->eth_rx_adapter_queue_del,
2210 -ENOTSUP);
2211 ret = (*dev->dev_ops->eth_rx_adapter_queue_del)(dev,
2212 &rte_eth_devices[eth_dev_id],
2213 rx_queue_id);
2214 if (ret == 0) {
2215 rxa_update_queue(rx_adapter,
2216 &rx_adapter->eth_devices[eth_dev_id],
2217 rx_queue_id,
2218 0);
2219 if (dev_info->nb_dev_queues == 0) {
2220 rte_free(dev_info->rx_queue);
2221 dev_info->rx_queue = NULL;
2222 }
2223 }
2224 } else {
2225 rxa_calc_nb_post_del(rx_adapter, dev_info, rx_queue_id,
2226 &nb_rx_poll, &nb_rx_intr, &nb_wrr);
2227
2228 ret = rxa_alloc_poll_arrays(rx_adapter, nb_rx_poll, nb_wrr,
2229 &rx_poll, &rx_wrr);
2230 if (ret)
2231 return ret;
2232
2233 rte_spinlock_lock(&rx_adapter->rx_lock);
2234
2235 num_intr_vec = 0;
2236 if (rx_adapter->num_rx_intr > nb_rx_intr) {
2237
2238 num_intr_vec = rxa_nb_intr_vect(dev_info,
2239 rx_queue_id, 0);
2240 ret = rxa_del_intr_queue(rx_adapter, dev_info,
2241 rx_queue_id);
2242 if (ret)
2243 goto unlock_ret;
2244 }
2245
2246 if (nb_rx_intr == 0) {
2247 ret = rxa_free_intr_resources(rx_adapter);
2248 if (ret)
2249 goto unlock_ret;
2250 }
2251
2252 rxa_sw_del(rx_adapter, dev_info, rx_queue_id);
2253 rxa_calc_wrr_sequence(rx_adapter, rx_poll, rx_wrr);
2254
2255 rte_free(rx_adapter->eth_rx_poll);
2256 rte_free(rx_adapter->wrr_sched);
2257
2258 if (nb_rx_intr == 0) {
2259 rte_free(dev_info->intr_queue);
2260 dev_info->intr_queue = NULL;
2261 }
2262
2263 rx_adapter->eth_rx_poll = rx_poll;
2264 rx_adapter->wrr_sched = rx_wrr;
2265 rx_adapter->wrr_len = nb_wrr;
2266 rx_adapter->num_intr_vec += num_intr_vec;
2267
2268 if (dev_info->nb_dev_queues == 0) {
2269 rte_free(dev_info->rx_queue);
2270 dev_info->rx_queue = NULL;
2271 }
2272unlock_ret:
2273 rte_spinlock_unlock(&rx_adapter->rx_lock);
2274 if (ret) {
2275 rte_free(rx_poll);
2276 rte_free(rx_wrr);
2277 return ret;
2278 }
2279
2280 rte_service_component_runstate_set(rx_adapter->service_id,
2281 rxa_sw_adapter_queue_count(rx_adapter));
2282 }
2283
2284 return ret;
2285}
2286
2287int
2288rte_event_eth_rx_adapter_start(uint8_t id)
2289{
2290 return rxa_ctrl(id, 1);
2291}
2292
2293int
2294rte_event_eth_rx_adapter_stop(uint8_t id)
2295{
2296 return rxa_ctrl(id, 0);
2297}
2298
9f95a23c 2299int __rte_experimental
11fdf7f2
TL		 2300rte_event_eth_rx_adapter_stats_get(uint8_t id,
2301 struct rte_event_eth_rx_adapter_stats *stats)
2302{
2303 struct rte_event_eth_rx_adapter *rx_adapter;
2304 struct rte_event_eth_rx_adapter_stats dev_stats_sum = { 0 };
2305 struct rte_event_eth_rx_adapter_stats dev_stats;
2306 struct rte_eventdev *dev;
2307 struct eth_device_info *dev_info;
2308 uint32_t i;
2309 int ret;
2310
2311 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2312
2313 rx_adapter = rxa_id_to_adapter(id);
2314 if (rx_adapter == NULL || stats == NULL)
2315 return -EINVAL;
2316
2317 dev = &rte_eventdevs[rx_adapter->eventdev_id];
2318 memset(stats, 0, sizeof(*stats));
2319 RTE_ETH_FOREACH_DEV(i) {
2320 dev_info = &rx_adapter->eth_devices[i];
2321 if (dev_info->internal_event_port == 0 ||
2322 dev->dev_ops->eth_rx_adapter_stats_get == NULL)
2323 continue;
2324 ret = (*dev->dev_ops->eth_rx_adapter_stats_get)(dev,
2325 &rte_eth_devices[i],
2326 &dev_stats);
2327 if (ret)
2328 continue;
2329 dev_stats_sum.rx_packets += dev_stats.rx_packets;
2330 dev_stats_sum.rx_enq_count += dev_stats.rx_enq_count;
2331 }
2332
2333 if (rx_adapter->service_inited)
2334 *stats = rx_adapter->stats;
2335
2336 stats->rx_packets += dev_stats_sum.rx_packets;
2337 stats->rx_enq_count += dev_stats_sum.rx_enq_count;
2338 return 0;
2339}
2340
2341int
2342rte_event_eth_rx_adapter_stats_reset(uint8_t id)
2343{
2344 struct rte_event_eth_rx_adapter *rx_adapter;
2345 struct rte_eventdev *dev;
2346 struct eth_device_info *dev_info;
2347 uint32_t i;
2348
2349 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2350
2351 rx_adapter = rxa_id_to_adapter(id);
2352 if (rx_adapter == NULL)
2353 return -EINVAL;
2354
2355 dev = &rte_eventdevs[rx_adapter->eventdev_id];
2356 RTE_ETH_FOREACH_DEV(i) {
2357 dev_info = &rx_adapter->eth_devices[i];
2358 if (dev_info->internal_event_port == 0 ||
2359 dev->dev_ops->eth_rx_adapter_stats_reset == NULL)
2360 continue;
2361 (*dev->dev_ops->eth_rx_adapter_stats_reset)(dev,
2362 &rte_eth_devices[i]);
2363 }
2364
2365 memset(&rx_adapter->stats, 0, sizeof(rx_adapter->stats));
2366 return 0;
2367}
2368
2369int
2370rte_event_eth_rx_adapter_service_id_get(uint8_t id, uint32_t *service_id)
2371{
2372 struct rte_event_eth_rx_adapter *rx_adapter;
2373
2374 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2375
2376 rx_adapter = rxa_id_to_adapter(id);
2377 if (rx_adapter == NULL || service_id == NULL)
2378 return -EINVAL;
2379
2380 if (rx_adapter->service_inited)
2381 *service_id = rx_adapter->service_id;
2382
2383 return rx_adapter->service_inited ? 0 : -ESRCH;
2384}
2385
9f95a23c
TL		 2386int __rte_experimental
2387rte_event_eth_rx_adapter_cb_register(uint8_t id,
11fdf7f2
TL		 2388 uint16_t eth_dev_id,
2389 rte_event_eth_rx_adapter_cb_fn cb_fn,
2390 void *cb_arg)
2391{
2392 struct rte_event_eth_rx_adapter *rx_adapter;
2393 struct eth_device_info *dev_info;
2394 uint32_t cap;
2395 int ret;
2396
2397 RTE_EVENT_ETH_RX_ADAPTER_ID_VALID_OR_ERR_RET(id, -EINVAL);
2398 RTE_ETH_VALID_PORTID_OR_ERR_RET(eth_dev_id, -EINVAL);
2399
2400 rx_adapter = rxa_id_to_adapter(id);
2401 if (rx_adapter == NULL)
2402 return -EINVAL;
2403
2404 dev_info = &rx_adapter->eth_devices[eth_dev_id];
2405 if (dev_info->rx_queue == NULL)
2406 return -EINVAL;
2407
2408 ret = rte_event_eth_rx_adapter_caps_get(rx_adapter->eventdev_id,
2409 eth_dev_id,
2410 &cap);
2411 if (ret) {
2412 RTE_EDEV_LOG_ERR("Failed to get adapter caps edev %" PRIu8
2413 "eth port %" PRIu16, id, eth_dev_id);
2414 return ret;
2415 }
2416
2417 if (cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT) {
2418 RTE_EDEV_LOG_ERR("Rx callback not supported for eth port %"
2419 PRIu16, eth_dev_id);
2420 return -EINVAL;
2421 }
2422
2423 rte_spinlock_lock(&rx_adapter->rx_lock);
2424 dev_info->cb_fn = cb_fn;
2425 dev_info->cb_arg = cb_arg;
2426 rte_spinlock_unlock(&rx_adapter->rx_lock);
2427
2428 return 0;
2429}
Ceph