xref: /dpdk/drivers/net/pfe/pfe_ethdev.c (revision 10b71caecbe1cddcbb65c050ca775fba575e88db)
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright 2018-2019 NXP
3  */
4 
5 #include <sys/ioctl.h>
6 #include <sys/epoll.h>
7 #include <rte_kvargs.h>
8 #include <rte_ethdev_vdev.h>
9 #include <rte_bus_vdev.h>
10 #include <rte_ether.h>
11 #include <dpaa_of.h>
12 
13 #include "pfe_logs.h"
14 #include "pfe_mod.h"
15 
16 #define PFE_MAX_MACS 1 /* we can support up to 4 MACs per IF */
17 #define PFE_VDEV_GEM_ID_ARG	"intf"
18 
19 struct pfe_vdev_init_params {
20 	int8_t	gem_id;
21 };
22 static struct pfe *g_pfe;
23 /* Supported Rx offloads */
24 static uint64_t dev_rx_offloads_sup =
25 		DEV_RX_OFFLOAD_IPV4_CKSUM |
26 		DEV_RX_OFFLOAD_UDP_CKSUM |
27 		DEV_RX_OFFLOAD_TCP_CKSUM;
28 
29 /* Supported Tx offloads */
30 static uint64_t dev_tx_offloads_sup =
31 		DEV_TX_OFFLOAD_IPV4_CKSUM |
32 		DEV_TX_OFFLOAD_UDP_CKSUM |
33 		DEV_TX_OFFLOAD_TCP_CKSUM;
34 
35 /* TODO: make pfe_svr a runtime option.
36  * Driver should be able to get the SVR
37  * information from HW.
38  */
39 unsigned int pfe_svr = SVR_LS1012A_REV1;
40 static void *cbus_emac_base[3];
41 static void *cbus_gpi_base[3];
42 
43 /* pfe_gemac_init
44  */
45 static int
46 pfe_gemac_init(struct pfe_eth_priv_s *priv)
47 {
48 	struct gemac_cfg cfg;
49 
50 	cfg.speed = SPEED_1000M;
51 	cfg.duplex = DUPLEX_FULL;
52 
53 	gemac_set_config(priv->EMAC_baseaddr, &cfg);
54 	gemac_allow_broadcast(priv->EMAC_baseaddr);
55 	gemac_enable_1536_rx(priv->EMAC_baseaddr);
56 	gemac_enable_stacked_vlan(priv->EMAC_baseaddr);
57 	gemac_enable_pause_rx(priv->EMAC_baseaddr);
58 	gemac_set_bus_width(priv->EMAC_baseaddr, 64);
59 	gemac_enable_rx_checksum_offload(priv->EMAC_baseaddr);
60 
61 	return 0;
62 }
63 
64 static void
65 pfe_soc_version_get(void)
66 {
67 	FILE *svr_file = NULL;
68 	unsigned int svr_ver = 0;
69 
70 	PMD_INIT_FUNC_TRACE();
71 
72 	svr_file = fopen(PFE_SOC_ID_FILE, "r");
73 	if (!svr_file) {
74 		PFE_PMD_ERR("Unable to open SoC device");
75 		return; /* Not supported on this infra */
76 	}
77 
78 	if (fscanf(svr_file, "svr:%x", &svr_ver) > 0)
79 		pfe_svr = svr_ver;
80 	else
81 		PFE_PMD_ERR("Unable to read SoC device");
82 
83 	fclose(svr_file);
84 }
85 
86 static int pfe_eth_start(struct pfe_eth_priv_s *priv)
87 {
88 	gpi_enable(priv->GPI_baseaddr);
89 	gemac_enable(priv->EMAC_baseaddr);
90 
91 	return 0;
92 }
93 
94 static void
95 pfe_eth_flush_txQ(struct pfe_eth_priv_s *priv, int tx_q_num, int
96 		  __rte_unused from_tx, __rte_unused int n_desc)
97 {
98 	struct rte_mbuf *mbuf;
99 	unsigned int flags;
100 
101 	/* Clean HIF and client queue */
102 	while ((mbuf = hif_lib_tx_get_next_complete(&priv->client,
103 						   tx_q_num, &flags,
104 						   HIF_TX_DESC_NT))) {
105 		if (mbuf) {
106 			mbuf->next = NULL;
107 			mbuf->nb_segs = 1;
108 			rte_pktmbuf_free(mbuf);
109 		}
110 	}
111 }
112 
113 
114 static void
115 pfe_eth_flush_tx(struct pfe_eth_priv_s *priv)
116 {
117 	unsigned int ii;
118 
119 	for (ii = 0; ii < emac_txq_cnt; ii++)
120 		pfe_eth_flush_txQ(priv, ii, 0, 0);
121 }
122 
123 static int
124 pfe_eth_event_handler(void *data, int event, __rte_unused int qno)
125 {
126 	struct pfe_eth_priv_s *priv = data;
127 
128 	switch (event) {
129 	case EVENT_TXDONE_IND:
130 		pfe_eth_flush_tx(priv);
131 		hif_lib_event_handler_start(&priv->client, EVENT_TXDONE_IND, 0);
132 		break;
133 	case EVENT_HIGH_RX_WM:
134 	default:
135 		break;
136 	}
137 
138 	return 0;
139 }
140 
141 static uint16_t
142 pfe_recv_pkts_on_intr(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
143 {
144 	struct hif_client_rx_queue *queue = rxq;
145 	struct pfe_eth_priv_s *priv = queue->priv;
146 	struct epoll_event epoll_ev;
147 	uint64_t ticks = 1;  /* 1 msec */
148 	int ret;
149 	int have_something, work_done;
150 
151 #define RESET_STATUS (HIF_INT | HIF_RXPKT_INT)
152 
153 	/*TODO can we remove this cleanup from here?*/
154 	pfe_tx_do_cleanup(priv->pfe);
155 	have_something = pfe_hif_rx_process(priv->pfe, nb_pkts);
156 	work_done = hif_lib_receive_pkt(rxq, priv->pfe->hif.shm->pool,
157 			rx_pkts, nb_pkts);
158 
159 	if (!have_something || !work_done) {
160 		writel(RESET_STATUS, HIF_INT_SRC);
161 		writel(readl(HIF_INT_ENABLE) | HIF_RXPKT_INT, HIF_INT_ENABLE);
162 		ret = epoll_wait(priv->pfe->hif.epoll_fd, &epoll_ev, 1, ticks);
163 		if (ret < 0 && errno != EINTR)
164 			PFE_PMD_ERR("epoll_wait fails with %d\n", errno);
165 	}
166 
167 	return work_done;
168 }
169 
170 static uint16_t
171 pfe_recv_pkts(void *rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
172 {
173 	struct hif_client_rx_queue *queue = rxq;
174 	struct pfe_eth_priv_s *priv = queue->priv;
175 	struct rte_mempool *pool;
176 
177 	/*TODO can we remove this cleanup from here?*/
178 	pfe_tx_do_cleanup(priv->pfe);
179 	pfe_hif_rx_process(priv->pfe, nb_pkts);
180 	pool = priv->pfe->hif.shm->pool;
181 
182 	return hif_lib_receive_pkt(rxq, pool, rx_pkts, nb_pkts);
183 }
184 
185 static uint16_t
186 pfe_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
187 {
188 	struct hif_client_tx_queue *queue = tx_queue;
189 	struct pfe_eth_priv_s *priv = queue->priv;
190 	struct rte_eth_stats *stats = &priv->stats;
191 	int i;
192 
193 	for (i = 0; i < nb_pkts; i++) {
194 		if (tx_pkts[i]->nb_segs > 1) {
195 			struct rte_mbuf *mbuf;
196 			int j;
197 
198 			hif_lib_xmit_pkt(&priv->client, queue->queue_id,
199 				(void *)(size_t)rte_pktmbuf_iova(tx_pkts[i]),
200 				tx_pkts[i]->buf_addr + tx_pkts[i]->data_off,
201 				tx_pkts[i]->data_len, 0x0, HIF_FIRST_BUFFER,
202 				tx_pkts[i]);
203 
204 			mbuf = tx_pkts[i]->next;
205 			for (j = 0; j < (tx_pkts[i]->nb_segs - 2); j++) {
206 				hif_lib_xmit_pkt(&priv->client, queue->queue_id,
207 					(void *)(size_t)rte_pktmbuf_iova(mbuf),
208 					mbuf->buf_addr + mbuf->data_off,
209 					mbuf->data_len,
210 					0x0, 0x0, mbuf);
211 				mbuf = mbuf->next;
212 			}
213 
214 			hif_lib_xmit_pkt(&priv->client, queue->queue_id,
215 					(void *)(size_t)rte_pktmbuf_iova(mbuf),
216 					mbuf->buf_addr + mbuf->data_off,
217 					mbuf->data_len,
218 					0x0, HIF_LAST_BUFFER | HIF_DATA_VALID,
219 					mbuf);
220 		} else {
221 			hif_lib_xmit_pkt(&priv->client, queue->queue_id,
222 				(void *)(size_t)rte_pktmbuf_iova(tx_pkts[i]),
223 				tx_pkts[i]->buf_addr + tx_pkts[i]->data_off,
224 				tx_pkts[i]->pkt_len, 0 /*ctrl*/,
225 				HIF_FIRST_BUFFER | HIF_LAST_BUFFER |
226 				HIF_DATA_VALID,
227 				tx_pkts[i]);
228 		}
229 		stats->obytes += tx_pkts[i]->pkt_len;
230 		hif_tx_dma_start();
231 	}
232 	stats->opackets += nb_pkts;
233 	pfe_tx_do_cleanup(priv->pfe);
234 
235 	return nb_pkts;
236 }
237 
238 static uint16_t
239 pfe_dummy_xmit_pkts(__rte_unused void *tx_queue,
240 		__rte_unused struct rte_mbuf **tx_pkts,
241 		__rte_unused uint16_t nb_pkts)
242 {
243 	return 0;
244 }
245 
246 static uint16_t
247 pfe_dummy_recv_pkts(__rte_unused void *rxq,
248 		__rte_unused struct rte_mbuf **rx_pkts,
249 		__rte_unused uint16_t nb_pkts)
250 {
251 	return 0;
252 }
253 
254 static int
255 pfe_eth_open(struct rte_eth_dev *dev)
256 {
257 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
258 	struct hif_client_s *client;
259 	struct hif_shm *hif_shm;
260 	int rc;
261 
262 	/* Register client driver with HIF */
263 	client = &priv->client;
264 
265 	if (client->pfe) {
266 		hif_shm = client->pfe->hif.shm;
267 		/* TODO please remove the below code of if block, once we add
268 		 * the proper cleanup in eth_close
269 		 */
270 		if (!test_bit(PFE_CL_GEM0 + priv->id,
271 			      &hif_shm->g_client_status[0])) {
272 			/* Register client driver with HIF */
273 			memset(client, 0, sizeof(*client));
274 			client->id = PFE_CL_GEM0 + priv->id;
275 			client->tx_qn = emac_txq_cnt;
276 			client->rx_qn = EMAC_RXQ_CNT;
277 			client->priv = priv;
278 			client->pfe = priv->pfe;
279 			client->port_id = dev->data->port_id;
280 			client->event_handler = pfe_eth_event_handler;
281 
282 			client->tx_qsize = EMAC_TXQ_DEPTH;
283 			client->rx_qsize = EMAC_RXQ_DEPTH;
284 
285 			rc = hif_lib_client_register(client);
286 			if (rc) {
287 				PFE_PMD_ERR("hif_lib_client_register(%d)"
288 					    " failed", client->id);
289 				goto err0;
290 			}
291 		} else {
292 			/* Freeing the packets if already exists */
293 			int ret = 0;
294 			struct rte_mbuf *rx_pkts[32];
295 			/* TODO multiqueue support */
296 			ret = hif_lib_receive_pkt(&client->rx_q[0],
297 						  hif_shm->pool, rx_pkts, 32);
298 			while (ret) {
299 				int i;
300 				for (i = 0; i < ret; i++)
301 					rte_pktmbuf_free(rx_pkts[i]);
302 				ret = hif_lib_receive_pkt(&client->rx_q[0],
303 							  hif_shm->pool,
304 							  rx_pkts, 32);
305 			}
306 		}
307 	} else {
308 		/* Register client driver with HIF */
309 		memset(client, 0, sizeof(*client));
310 		client->id = PFE_CL_GEM0 + priv->id;
311 		client->tx_qn = emac_txq_cnt;
312 		client->rx_qn = EMAC_RXQ_CNT;
313 		client->priv = priv;
314 		client->pfe = priv->pfe;
315 		client->port_id = dev->data->port_id;
316 		client->event_handler = pfe_eth_event_handler;
317 
318 		client->tx_qsize = EMAC_TXQ_DEPTH;
319 		client->rx_qsize = EMAC_RXQ_DEPTH;
320 
321 		rc = hif_lib_client_register(client);
322 		if (rc) {
323 			PFE_PMD_ERR("hif_lib_client_register(%d) failed",
324 				    client->id);
325 			goto err0;
326 		}
327 	}
328 	rc = pfe_eth_start(priv);
329 	dev->rx_pkt_burst = &pfe_recv_pkts;
330 	dev->tx_pkt_burst = &pfe_xmit_pkts;
331 	/* If no prefetch is configured. */
332 	if (getenv("PFE_INTR_SUPPORT")) {
333 		dev->rx_pkt_burst = &pfe_recv_pkts_on_intr;
334 		PFE_PMD_INFO("PFE INTERRUPT Mode enabled");
335 	}
336 
337 
338 err0:
339 	return rc;
340 }
341 
342 static int
343 pfe_eth_open_cdev(struct pfe_eth_priv_s *priv)
344 {
345 	int pfe_cdev_fd;
346 
347 	if (priv == NULL)
348 		return -1;
349 
350 	pfe_cdev_fd = open(PFE_CDEV_PATH, O_RDONLY);
351 	if (pfe_cdev_fd < 0) {
352 		PFE_PMD_WARN("Unable to open PFE device file (%s).\n",
353 			     PFE_CDEV_PATH);
354 		PFE_PMD_WARN("Link status update will not be available.\n");
355 		priv->link_fd = PFE_CDEV_INVALID_FD;
356 		return -1;
357 	}
358 
359 	priv->link_fd = pfe_cdev_fd;
360 
361 	return 0;
362 }
363 
364 static void
365 pfe_eth_close_cdev(struct pfe_eth_priv_s *priv)
366 {
367 	if (priv == NULL)
368 		return;
369 
370 	if (priv->link_fd != PFE_CDEV_INVALID_FD) {
371 		close(priv->link_fd);
372 		priv->link_fd = PFE_CDEV_INVALID_FD;
373 	}
374 }
375 
376 static void
377 pfe_eth_stop(struct rte_eth_dev *dev/*, int wake*/)
378 {
379 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
380 
381 	gemac_disable(priv->EMAC_baseaddr);
382 	gpi_disable(priv->GPI_baseaddr);
383 
384 	dev->rx_pkt_burst = &pfe_dummy_recv_pkts;
385 	dev->tx_pkt_burst = &pfe_dummy_xmit_pkts;
386 }
387 
388 static void
389 pfe_eth_exit(struct rte_eth_dev *dev, struct pfe *pfe)
390 {
391 	PMD_INIT_FUNC_TRACE();
392 
393 	pfe_eth_stop(dev);
394 	/* Close the device file for link status */
395 	pfe_eth_close_cdev(dev->data->dev_private);
396 
397 	rte_eth_dev_release_port(dev);
398 	pfe->nb_devs--;
399 }
400 
401 static void
402 pfe_eth_close(struct rte_eth_dev *dev)
403 {
404 	if (!dev)
405 		return;
406 
407 	if (!g_pfe)
408 		return;
409 
410 	pfe_eth_exit(dev, g_pfe);
411 
412 	if (g_pfe->nb_devs == 0) {
413 		pfe_hif_exit(g_pfe);
414 		pfe_hif_lib_exit(g_pfe);
415 		rte_free(g_pfe);
416 		g_pfe = NULL;
417 	}
418 }
419 
420 static int
421 pfe_eth_configure(struct rte_eth_dev *dev __rte_unused)
422 {
423 	return 0;
424 }
425 
426 static int
427 pfe_eth_info(struct rte_eth_dev *dev,
428 		struct rte_eth_dev_info *dev_info)
429 {
430 	struct pfe_eth_priv_s *internals = dev->data->dev_private;
431 
432 	dev_info->if_index = internals->id;
433 	dev_info->max_mac_addrs = PFE_MAX_MACS;
434 	dev_info->max_rx_queues = dev->data->nb_rx_queues;
435 	dev_info->max_tx_queues = dev->data->nb_tx_queues;
436 	dev_info->min_rx_bufsize = HIF_RX_PKT_MIN_SIZE;
437 	dev_info->min_mtu = RTE_ETHER_MIN_MTU;
438 	dev_info->rx_offload_capa = dev_rx_offloads_sup;
439 	dev_info->tx_offload_capa = dev_tx_offloads_sup;
440 	if (pfe_svr == SVR_LS1012A_REV1) {
441 		dev_info->max_rx_pktlen = MAX_MTU_ON_REV1 + PFE_ETH_OVERHEAD;
442 		dev_info->max_mtu = MAX_MTU_ON_REV1;
443 	} else {
444 		dev_info->max_rx_pktlen = JUMBO_FRAME_SIZE;
445 		dev_info->max_mtu = JUMBO_FRAME_SIZE - PFE_ETH_OVERHEAD;
446 	}
447 
448 	return 0;
449 }
450 
451 /* Only first mb_pool given on first call of this API will be used
452  * in whole system, also nb_rx_desc and rx_conf are unused params
453  */
454 static int
455 pfe_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
456 		__rte_unused uint16_t nb_rx_desc,
457 		__rte_unused unsigned int socket_id,
458 		__rte_unused const struct rte_eth_rxconf *rx_conf,
459 		struct rte_mempool *mb_pool)
460 {
461 	int rc = 0;
462 	struct pfe *pfe;
463 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
464 
465 	pfe = priv->pfe;
466 
467 	if (queue_idx >= EMAC_RXQ_CNT) {
468 		PFE_PMD_ERR("Invalid queue idx = %d, Max queues = %d",
469 				queue_idx, EMAC_RXQ_CNT);
470 		return -1;
471 	}
472 
473 	if (!pfe->hif.setuped) {
474 		rc = pfe_hif_shm_init(pfe->hif.shm, mb_pool);
475 		if (rc) {
476 			PFE_PMD_ERR("Could not allocate buffer descriptors");
477 			return -1;
478 		}
479 
480 		pfe->hif.shm->pool = mb_pool;
481 		if (pfe_hif_init_buffers(&pfe->hif)) {
482 			PFE_PMD_ERR("Could not initialize buffer descriptors");
483 			return -1;
484 		}
485 		hif_init();
486 		hif_rx_enable();
487 		hif_tx_enable();
488 		pfe->hif.setuped = 1;
489 	}
490 	dev->data->rx_queues[queue_idx] = &priv->client.rx_q[queue_idx];
491 	priv->client.rx_q[queue_idx].queue_id = queue_idx;
492 
493 	return 0;
494 }
495 
496 static void
497 pfe_rx_queue_release(void *q __rte_unused)
498 {
499 	PMD_INIT_FUNC_TRACE();
500 }
501 
502 static void
503 pfe_tx_queue_release(void *q __rte_unused)
504 {
505 	PMD_INIT_FUNC_TRACE();
506 }
507 
508 static int
509 pfe_tx_queue_setup(struct rte_eth_dev *dev,
510 		   uint16_t queue_idx,
511 		   __rte_unused uint16_t nb_desc,
512 		   __rte_unused unsigned int socket_id,
513 		   __rte_unused const struct rte_eth_txconf *tx_conf)
514 {
515 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
516 
517 	if (queue_idx >= emac_txq_cnt) {
518 		PFE_PMD_ERR("Invalid queue idx = %d, Max queues = %d",
519 				queue_idx, emac_txq_cnt);
520 		return -1;
521 	}
522 	dev->data->tx_queues[queue_idx] = &priv->client.tx_q[queue_idx];
523 	priv->client.tx_q[queue_idx].queue_id = queue_idx;
524 	return 0;
525 }
526 
527 static const uint32_t *
528 pfe_supported_ptypes_get(struct rte_eth_dev *dev)
529 {
530 	static const uint32_t ptypes[] = {
531 		/*todo -= add more types */
532 		RTE_PTYPE_L2_ETHER,
533 		RTE_PTYPE_L3_IPV4,
534 		RTE_PTYPE_L3_IPV4_EXT,
535 		RTE_PTYPE_L3_IPV6,
536 		RTE_PTYPE_L3_IPV6_EXT,
537 		RTE_PTYPE_L4_TCP,
538 		RTE_PTYPE_L4_UDP,
539 		RTE_PTYPE_L4_SCTP
540 	};
541 
542 	if (dev->rx_pkt_burst == pfe_recv_pkts ||
543 			dev->rx_pkt_burst == pfe_recv_pkts_on_intr)
544 		return ptypes;
545 	return NULL;
546 }
547 
548 static inline int
549 pfe_eth_atomic_read_link_status(struct rte_eth_dev *dev,
550 				struct rte_eth_link *link)
551 {
552 	struct rte_eth_link *dst = link;
553 	struct rte_eth_link *src = &dev->data->dev_link;
554 
555 	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
556 				*(uint64_t *)src) == 0)
557 		return -1;
558 
559 	return 0;
560 }
561 
562 static inline int
563 pfe_eth_atomic_write_link_status(struct rte_eth_dev *dev,
564 				 struct rte_eth_link *link)
565 {
566 	struct rte_eth_link *dst = &dev->data->dev_link;
567 	struct rte_eth_link *src = link;
568 
569 	if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
570 				*(uint64_t *)src) == 0)
571 		return -1;
572 
573 	return 0;
574 }
575 
576 static int
577 pfe_eth_link_update(struct rte_eth_dev *dev, int wait_to_complete __rte_unused)
578 {
579 	int ret, ioctl_cmd = 0;
580 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
581 	struct rte_eth_link link, old;
582 	unsigned int lstatus = 1;
583 
584 	if (dev == NULL) {
585 		PFE_PMD_ERR("Invalid device in link_update.\n");
586 		return 0;
587 	}
588 
589 	memset(&old, 0, sizeof(old));
590 	memset(&link, 0, sizeof(struct rte_eth_link));
591 
592 	pfe_eth_atomic_read_link_status(dev, &old);
593 
594 	/* Read from PFE CDEV, status of link, if file was successfully
595 	 * opened.
596 	 */
597 	if (priv->link_fd != PFE_CDEV_INVALID_FD) {
598 		if (priv->id == 0)
599 			ioctl_cmd = PFE_CDEV_ETH0_STATE_GET;
600 		if (priv->id == 1)
601 			ioctl_cmd = PFE_CDEV_ETH1_STATE_GET;
602 
603 		ret = ioctl(priv->link_fd, ioctl_cmd, &lstatus);
604 		if (ret != 0) {
605 			PFE_PMD_ERR("Unable to fetch link status (ioctl)\n");
606 			/* use dummy link value */
607 			link.link_status = 1;
608 		}
609 		PFE_PMD_DEBUG("Fetched link state (%d) for dev %d.\n",
610 			      lstatus, priv->id);
611 	}
612 
613 	if (old.link_status == lstatus) {
614 		/* no change in status */
615 		PFE_PMD_DEBUG("No change in link status; Not updating.\n");
616 		return -1;
617 	}
618 
619 	link.link_status = lstatus;
620 	link.link_speed = ETH_LINK_SPEED_1G;
621 	link.link_duplex = ETH_LINK_FULL_DUPLEX;
622 	link.link_autoneg = ETH_LINK_AUTONEG;
623 
624 	pfe_eth_atomic_write_link_status(dev, &link);
625 
626 	PFE_PMD_INFO("Port (%d) link is %s\n", dev->data->port_id,
627 		     link.link_status ? "up" : "down");
628 
629 	return 0;
630 }
631 
632 static int
633 pfe_promiscuous_enable(struct rte_eth_dev *dev)
634 {
635 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
636 
637 	priv->promisc = 1;
638 	dev->data->promiscuous = 1;
639 	gemac_enable_copy_all(priv->EMAC_baseaddr);
640 
641 	return 0;
642 }
643 
644 static int
645 pfe_promiscuous_disable(struct rte_eth_dev *dev)
646 {
647 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
648 
649 	priv->promisc = 0;
650 	dev->data->promiscuous = 0;
651 	gemac_disable_copy_all(priv->EMAC_baseaddr);
652 
653 	return 0;
654 }
655 
656 static int
657 pfe_allmulticast_enable(struct rte_eth_dev *dev)
658 {
659 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
660 	struct pfe_mac_addr    hash_addr; /* hash register structure */
661 
662 	/* Set the hash to rx all multicast frames */
663 	hash_addr.bottom = 0xFFFFFFFF;
664 	hash_addr.top = 0xFFFFFFFF;
665 	gemac_set_hash(priv->EMAC_baseaddr, &hash_addr);
666 	dev->data->all_multicast = 1;
667 
668 	return 0;
669 }
670 
671 static int
672 pfe_link_down(struct rte_eth_dev *dev)
673 {
674 	pfe_eth_stop(dev);
675 	return 0;
676 }
677 
678 static int
679 pfe_link_up(struct rte_eth_dev *dev)
680 {
681 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
682 
683 	pfe_eth_start(priv);
684 	return 0;
685 }
686 
687 static int
688 pfe_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
689 {
690 	int ret;
691 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
692 	uint16_t frame_size = mtu + RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
693 
694 	/*TODO Support VLAN*/
695 	ret = gemac_set_rx(priv->EMAC_baseaddr, frame_size);
696 	if (!ret)
697 		dev->data->mtu = mtu;
698 
699 	return ret;
700 }
701 
702 /* pfe_eth_enet_addr_byte_mac
703  */
704 static int
705 pfe_eth_enet_addr_byte_mac(u8 *enet_byte_addr,
706 			   struct pfe_mac_addr *enet_addr)
707 {
708 	if (!enet_byte_addr || !enet_addr) {
709 		return -1;
710 
711 	} else {
712 		enet_addr->bottom = enet_byte_addr[0] |
713 			(enet_byte_addr[1] << 8) |
714 			(enet_byte_addr[2] << 16) |
715 			(enet_byte_addr[3] << 24);
716 		enet_addr->top = enet_byte_addr[4] |
717 			(enet_byte_addr[5] << 8);
718 		return 0;
719 	}
720 }
721 
722 static int
723 pfe_dev_set_mac_addr(struct rte_eth_dev *dev,
724 		       struct rte_ether_addr *addr)
725 {
726 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
727 	struct pfe_mac_addr spec_addr;
728 	int ret;
729 
730 	ret = pfe_eth_enet_addr_byte_mac(addr->addr_bytes, &spec_addr);
731 	if (ret)
732 		return ret;
733 
734 	gemac_set_laddrN(priv->EMAC_baseaddr,
735 			 (struct pfe_mac_addr *)&spec_addr, 1);
736 	rte_ether_addr_copy(addr, &dev->data->mac_addrs[0]);
737 	return 0;
738 }
739 
740 static int
741 pfe_stats_get(struct rte_eth_dev *dev,
742 	      struct rte_eth_stats *stats)
743 {
744 	struct pfe_eth_priv_s *priv = dev->data->dev_private;
745 	struct rte_eth_stats *eth_stats = &priv->stats;
746 
747 	if (stats == NULL)
748 		return -1;
749 
750 	memset(stats, 0, sizeof(struct rte_eth_stats));
751 
752 	stats->ipackets = eth_stats->ipackets;
753 	stats->ibytes = eth_stats->ibytes;
754 	stats->opackets = eth_stats->opackets;
755 	stats->obytes = eth_stats->obytes;
756 
757 	return 0;
758 }
759 
760 static const struct eth_dev_ops ops = {
761 	.dev_start = pfe_eth_open,
762 	.dev_stop = pfe_eth_stop,
763 	.dev_close = pfe_eth_close,
764 	.dev_configure = pfe_eth_configure,
765 	.dev_infos_get = pfe_eth_info,
766 	.rx_queue_setup = pfe_rx_queue_setup,
767 	.rx_queue_release  = pfe_rx_queue_release,
768 	.tx_queue_setup = pfe_tx_queue_setup,
769 	.tx_queue_release  = pfe_tx_queue_release,
770 	.dev_supported_ptypes_get = pfe_supported_ptypes_get,
771 	.link_update  = pfe_eth_link_update,
772 	.promiscuous_enable   = pfe_promiscuous_enable,
773 	.promiscuous_disable  = pfe_promiscuous_disable,
774 	.allmulticast_enable  = pfe_allmulticast_enable,
775 	.dev_set_link_down    = pfe_link_down,
776 	.dev_set_link_up      = pfe_link_up,
777 	.mtu_set              = pfe_mtu_set,
778 	.mac_addr_set	      = pfe_dev_set_mac_addr,
779 	.stats_get            = pfe_stats_get,
780 };
781 
782 static int
783 pfe_eth_init(struct rte_vdev_device *vdev, struct pfe *pfe, int id)
784 {
785 	struct rte_eth_dev *eth_dev = NULL;
786 	struct pfe_eth_priv_s *priv = NULL;
787 	struct ls1012a_eth_platform_data *einfo;
788 	struct ls1012a_pfe_platform_data *pfe_info;
789 	struct rte_ether_addr addr;
790 	int err;
791 
792 	eth_dev = rte_eth_vdev_allocate(vdev, sizeof(*priv));
793 	if (eth_dev == NULL)
794 		return -ENOMEM;
795 
796 	/* Extract pltform data */
797 	pfe_info = (struct ls1012a_pfe_platform_data *)&pfe->platform_data;
798 	if (!pfe_info) {
799 		PFE_PMD_ERR("pfe missing additional platform data");
800 		err = -ENODEV;
801 		goto err0;
802 	}
803 
804 	einfo = (struct ls1012a_eth_platform_data *)pfe_info->ls1012a_eth_pdata;
805 
806 	/* einfo never be NULL, but no harm in having this check */
807 	if (!einfo) {
808 		PFE_PMD_ERR("pfe missing additional gemacs platform data");
809 		err = -ENODEV;
810 		goto err0;
811 	}
812 
813 	priv = eth_dev->data->dev_private;
814 	priv->ndev = eth_dev;
815 	priv->id = einfo[id].gem_id;
816 	priv->pfe = pfe;
817 
818 	pfe->eth.eth_priv[id] = priv;
819 
820 	/* Set the info in the priv to the current info */
821 	priv->einfo = &einfo[id];
822 	priv->EMAC_baseaddr = cbus_emac_base[id];
823 	priv->PHY_baseaddr = cbus_emac_base[id];
824 	priv->GPI_baseaddr = cbus_gpi_base[id];
825 
826 #define HIF_GEMAC_TMUQ_BASE	6
827 	priv->low_tmu_q = HIF_GEMAC_TMUQ_BASE + (id * 2);
828 	priv->high_tmu_q = priv->low_tmu_q + 1;
829 
830 	rte_spinlock_init(&priv->lock);
831 
832 	/* Copy the station address into the dev structure, */
833 	eth_dev->data->mac_addrs = rte_zmalloc("mac_addr",
834 			ETHER_ADDR_LEN * PFE_MAX_MACS, 0);
835 	if (eth_dev->data->mac_addrs == NULL) {
836 		PFE_PMD_ERR("Failed to allocate mem %d to store MAC addresses",
837 			ETHER_ADDR_LEN * PFE_MAX_MACS);
838 		err = -ENOMEM;
839 		goto err0;
840 	}
841 
842 	memcpy(addr.addr_bytes, priv->einfo->mac_addr,
843 		       ETH_ALEN);
844 
845 	pfe_dev_set_mac_addr(eth_dev, &addr);
846 	rte_ether_addr_copy(&addr, &eth_dev->data->mac_addrs[0]);
847 
848 	eth_dev->data->mtu = 1500;
849 	eth_dev->dev_ops = &ops;
850 	pfe_eth_stop(eth_dev);
851 	pfe_gemac_init(priv);
852 
853 	eth_dev->data->nb_rx_queues = 1;
854 	eth_dev->data->nb_tx_queues = 1;
855 
856 	/* For link status, open the PFE CDEV; Error from this function
857 	 * is silently ignored; In case of error, the link status will not
858 	 * be available.
859 	 */
860 	pfe_eth_open_cdev(priv);
861 	rte_eth_dev_probing_finish(eth_dev);
862 
863 	return 0;
864 err0:
865 	rte_eth_dev_release_port(eth_dev);
866 	return err;
867 }
868 
869 static int
870 pfe_get_gemac_if_proprties(struct pfe *pfe,
871 		__rte_unused const struct device_node *parent,
872 		unsigned int port, unsigned int if_cnt,
873 		struct ls1012a_pfe_platform_data *pdata)
874 {
875 	const struct device_node *gem = NULL;
876 	size_t size;
877 	unsigned int ii = 0, phy_id = 0;
878 	const u32 *addr;
879 	const void *mac_addr;
880 
881 	for (ii = 0; ii < if_cnt; ii++) {
882 		gem = of_get_next_child(parent, gem);
883 		if (!gem)
884 			goto err;
885 		addr = of_get_property(gem, "reg", &size);
886 		if (addr && (rte_be_to_cpu_32((unsigned int)*addr) == port))
887 			break;
888 	}
889 
890 	if (ii >= if_cnt) {
891 		PFE_PMD_ERR("Failed to find interface = %d", if_cnt);
892 		goto err;
893 	}
894 
895 	pdata->ls1012a_eth_pdata[port].gem_id = port;
896 
897 	mac_addr = of_get_mac_address(gem);
898 
899 	if (mac_addr) {
900 		memcpy(pdata->ls1012a_eth_pdata[port].mac_addr, mac_addr,
901 		       ETH_ALEN);
902 	}
903 
904 	addr = of_get_property(gem, "fsl,mdio-mux-val", &size);
905 	if (!addr) {
906 		PFE_PMD_ERR("Invalid mdio-mux-val....");
907 	} else {
908 		phy_id = rte_be_to_cpu_32((unsigned int)*addr);
909 		pdata->ls1012a_eth_pdata[port].mdio_muxval = phy_id;
910 	}
911 	if (pdata->ls1012a_eth_pdata[port].phy_id < 32)
912 		pfe->mdio_muxval[pdata->ls1012a_eth_pdata[port].phy_id] =
913 			 pdata->ls1012a_eth_pdata[port].mdio_muxval;
914 
915 	return 0;
916 
917 err:
918 	return -1;
919 }
920 
921 /* Parse integer from integer argument */
922 static int
923 parse_integer_arg(const char *key __rte_unused,
924 		const char *value, void *extra_args)
925 {
926 	int i;
927 	char *end;
928 	errno = 0;
929 
930 	i = strtol(value, &end, 10);
931 	if (*end != 0 || errno != 0 || i < 0 || i > 1) {
932 		PFE_PMD_ERR("Supported Port IDS are 0 and 1");
933 		return -EINVAL;
934 	}
935 
936 	*((uint32_t *)extra_args) = i;
937 
938 	return 0;
939 }
940 
941 static int
942 pfe_parse_vdev_init_params(struct pfe_vdev_init_params *params,
943 			   struct rte_vdev_device *dev)
944 {
945 	struct rte_kvargs *kvlist = NULL;
946 	int ret = 0;
947 
948 	static const char * const pfe_vdev_valid_params[] = {
949 		PFE_VDEV_GEM_ID_ARG,
950 		NULL
951 	};
952 
953 	const char *input_args = rte_vdev_device_args(dev);
954 
955 	if (!input_args)
956 		return -1;
957 
958 	kvlist = rte_kvargs_parse(input_args, pfe_vdev_valid_params);
959 	if (kvlist == NULL)
960 		return -1;
961 
962 	ret = rte_kvargs_process(kvlist,
963 				PFE_VDEV_GEM_ID_ARG,
964 				&parse_integer_arg,
965 				&params->gem_id);
966 	rte_kvargs_free(kvlist);
967 	return ret;
968 }
969 
970 static int
971 pmd_pfe_probe(struct rte_vdev_device *vdev)
972 {
973 	const u32 *prop;
974 	const struct device_node *np;
975 	const char *name;
976 	const uint32_t *addr;
977 	uint64_t cbus_addr, ddr_size, cbus_size;
978 	int rc = -1, fd = -1, gem_id;
979 	unsigned int ii, interface_count = 0;
980 	size_t size = 0;
981 	struct pfe_vdev_init_params init_params = {
982 		.gem_id = -1
983 	};
984 
985 	name = rte_vdev_device_name(vdev);
986 	rc = pfe_parse_vdev_init_params(&init_params, vdev);
987 	if (rc < 0)
988 		return -EINVAL;
989 
990 	PFE_PMD_LOG(INFO, "Initializing pmd_pfe for %s Given gem-id %d",
991 		name, init_params.gem_id);
992 
993 	if (g_pfe) {
994 		if (g_pfe->nb_devs >= g_pfe->max_intf) {
995 			PFE_PMD_ERR("PFE %d dev already created Max is %d",
996 				g_pfe->nb_devs, g_pfe->max_intf);
997 			return -EINVAL;
998 		}
999 		goto eth_init;
1000 	}
1001 
1002 	g_pfe = rte_zmalloc(NULL, sizeof(*g_pfe), RTE_CACHE_LINE_SIZE);
1003 	if (g_pfe == NULL)
1004 		return  -EINVAL;
1005 
1006 	/* Load the device-tree driver */
1007 	rc = of_init();
1008 	if (rc) {
1009 		PFE_PMD_ERR("of_init failed with ret: %d", rc);
1010 		goto err;
1011 	}
1012 
1013 	np = of_find_compatible_node(NULL, NULL, "fsl,pfe");
1014 	if (!np) {
1015 		PFE_PMD_ERR("Invalid device node");
1016 		rc = -EINVAL;
1017 		goto err;
1018 	}
1019 
1020 	addr = of_get_address(np, 0, &cbus_size, NULL);
1021 	if (!addr) {
1022 		PFE_PMD_ERR("of_get_address cannot return qman address\n");
1023 		goto err;
1024 	}
1025 	cbus_addr = of_translate_address(np, addr);
1026 	if (!cbus_addr) {
1027 		PFE_PMD_ERR("of_translate_address failed\n");
1028 		goto err;
1029 	}
1030 
1031 	addr = of_get_address(np, 1, &ddr_size, NULL);
1032 	if (!addr) {
1033 		PFE_PMD_ERR("of_get_address cannot return qman address\n");
1034 		goto err;
1035 	}
1036 
1037 	g_pfe->ddr_phys_baseaddr = of_translate_address(np, addr);
1038 	if (!g_pfe->ddr_phys_baseaddr) {
1039 		PFE_PMD_ERR("of_translate_address failed\n");
1040 		goto err;
1041 	}
1042 
1043 	g_pfe->ddr_baseaddr = pfe_mem_ptov(g_pfe->ddr_phys_baseaddr);
1044 	g_pfe->ddr_size = ddr_size;
1045 	g_pfe->cbus_size = cbus_size;
1046 
1047 	fd = open("/dev/mem", O_RDWR);
1048 	g_pfe->cbus_baseaddr = mmap(NULL, cbus_size, PROT_READ | PROT_WRITE,
1049 					MAP_SHARED, fd, cbus_addr);
1050 	close(fd);
1051 	if (g_pfe->cbus_baseaddr == MAP_FAILED) {
1052 		PFE_PMD_ERR("Can not map cbus base");
1053 		rc = -EINVAL;
1054 		goto err;
1055 	}
1056 
1057 	/* Read interface count */
1058 	prop = of_get_property(np, "fsl,pfe-num-interfaces", &size);
1059 	if (!prop) {
1060 		PFE_PMD_ERR("Failed to read number of interfaces");
1061 		rc = -ENXIO;
1062 		goto err_prop;
1063 	}
1064 
1065 	interface_count = rte_be_to_cpu_32((unsigned int)*prop);
1066 	if (interface_count <= 0) {
1067 		PFE_PMD_ERR("No ethernet interface count : %d",
1068 				interface_count);
1069 		rc = -ENXIO;
1070 		goto err_prop;
1071 	}
1072 	PFE_PMD_INFO("num interfaces = %d ", interface_count);
1073 
1074 	g_pfe->max_intf  = interface_count;
1075 	g_pfe->platform_data.ls1012a_mdio_pdata[0].phy_mask = 0xffffffff;
1076 
1077 	for (ii = 0; ii < interface_count; ii++) {
1078 		pfe_get_gemac_if_proprties(g_pfe, np, ii, interface_count,
1079 					   &g_pfe->platform_data);
1080 	}
1081 
1082 	pfe_lib_init(g_pfe->cbus_baseaddr, g_pfe->ddr_baseaddr,
1083 		     g_pfe->ddr_phys_baseaddr, g_pfe->ddr_size);
1084 
1085 	PFE_PMD_INFO("CLASS version: %x", readl(CLASS_VERSION));
1086 	PFE_PMD_INFO("TMU version: %x", readl(TMU_VERSION));
1087 
1088 	PFE_PMD_INFO("BMU1 version: %x", readl(BMU1_BASE_ADDR + BMU_VERSION));
1089 	PFE_PMD_INFO("BMU2 version: %x", readl(BMU2_BASE_ADDR + BMU_VERSION));
1090 
1091 	PFE_PMD_INFO("EGPI1 version: %x", readl(EGPI1_BASE_ADDR + GPI_VERSION));
1092 	PFE_PMD_INFO("EGPI2 version: %x", readl(EGPI2_BASE_ADDR + GPI_VERSION));
1093 	PFE_PMD_INFO("HGPI version: %x", readl(HGPI_BASE_ADDR + GPI_VERSION));
1094 
1095 	PFE_PMD_INFO("HIF version: %x", readl(HIF_VERSION));
1096 	PFE_PMD_INFO("HIF NOPCY version: %x", readl(HIF_NOCPY_VERSION));
1097 
1098 	cbus_emac_base[0] = EMAC1_BASE_ADDR;
1099 	cbus_emac_base[1] = EMAC2_BASE_ADDR;
1100 
1101 	cbus_gpi_base[0] = EGPI1_BASE_ADDR;
1102 	cbus_gpi_base[1] = EGPI2_BASE_ADDR;
1103 
1104 	rc = pfe_hif_lib_init(g_pfe);
1105 	if (rc < 0)
1106 		goto err_hif_lib;
1107 
1108 	rc = pfe_hif_init(g_pfe);
1109 	if (rc < 0)
1110 		goto err_hif;
1111 	pfe_soc_version_get();
1112 eth_init:
1113 	if (init_params.gem_id < 0)
1114 		gem_id = g_pfe->nb_devs;
1115 	else
1116 		gem_id = init_params.gem_id;
1117 
1118 	PFE_PMD_LOG(INFO, "Init pmd_pfe for %s gem-id %d(given =%d)",
1119 		name, gem_id, init_params.gem_id);
1120 
1121 	rc = pfe_eth_init(vdev, g_pfe, gem_id);
1122 	if (rc < 0)
1123 		goto err_eth;
1124 	else
1125 		g_pfe->nb_devs++;
1126 
1127 	return 0;
1128 
1129 err_eth:
1130 	pfe_hif_exit(g_pfe);
1131 
1132 err_hif:
1133 	pfe_hif_lib_exit(g_pfe);
1134 
1135 err_hif_lib:
1136 err_prop:
1137 	munmap(g_pfe->cbus_baseaddr, cbus_size);
1138 err:
1139 	rte_free(g_pfe);
1140 	return rc;
1141 }
1142 
1143 static int
1144 pmd_pfe_remove(struct rte_vdev_device *vdev)
1145 {
1146 	const char *name;
1147 	struct rte_eth_dev *eth_dev = NULL;
1148 
1149 	name = rte_vdev_device_name(vdev);
1150 	if (name == NULL)
1151 		return -EINVAL;
1152 
1153 	PFE_PMD_INFO("Closing eventdev sw device %s", name);
1154 
1155 	if (!g_pfe)
1156 		return 0;
1157 
1158 	eth_dev = rte_eth_dev_allocated(name);
1159 	if (eth_dev == NULL)
1160 		return -ENODEV;
1161 
1162 	pfe_eth_exit(eth_dev, g_pfe);
1163 	munmap(g_pfe->cbus_baseaddr, g_pfe->cbus_size);
1164 
1165 	if (g_pfe->nb_devs == 0) {
1166 		pfe_hif_exit(g_pfe);
1167 		pfe_hif_lib_exit(g_pfe);
1168 		rte_free(g_pfe);
1169 		g_pfe = NULL;
1170 	}
1171 	return 0;
1172 }
1173 
1174 static
1175 struct rte_vdev_driver pmd_pfe_drv = {
1176 	.probe = pmd_pfe_probe,
1177 	.remove = pmd_pfe_remove,
1178 };
1179 
1180 RTE_PMD_REGISTER_VDEV(PFE_NAME_PMD, pmd_pfe_drv);
1181 RTE_PMD_REGISTER_PARAM_STRING(PFE_NAME_PMD, PFE_VDEV_GEM_ID_ARG "=<int> ");
1182 RTE_LOG_REGISTER(pfe_logtype_pmd, pmd.net.pfe, NOTICE);
1183