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[mirror_ubuntu-hirsute-kernel.git] / drivers / net / ethernet / stmicro / stmmac / stmmac_selftests.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2019 Synopsys, Inc. and/or its affiliates.
4 * stmmac Selftests Support
5 *
6 * Author: Jose Abreu <joabreu@synopsys.com>
7 */
8
9 #include <linux/bitrev.h>
10 #include <linux/completion.h>
11 #include <linux/crc32.h>
12 #include <linux/ethtool.h>
13 #include <linux/ip.h>
14 #include <linux/phy.h>
15 #include <linux/udp.h>
16 #include <net/pkt_cls.h>
17 #include <net/pkt_sched.h>
18 #include <net/tcp.h>
19 #include <net/udp.h>
20 #include <net/tc_act/tc_gact.h>
21 #include "stmmac.h"
22
23 struct stmmachdr {
24 __be32 version;
25 __be64 magic;
26 u8 id;
27 } __packed;
28
29 #define STMMAC_TEST_PKT_SIZE (sizeof(struct ethhdr) + sizeof(struct iphdr) + \
30 sizeof(struct stmmachdr))
31 #define STMMAC_TEST_PKT_MAGIC 0xdeadcafecafedeadULL
32 #define STMMAC_LB_TIMEOUT msecs_to_jiffies(200)
33
34 struct stmmac_packet_attrs {
35 int vlan;
36 int vlan_id_in;
37 int vlan_id_out;
38 unsigned char *src;
39 unsigned char *dst;
40 u32 ip_src;
41 u32 ip_dst;
42 int tcp;
43 int sport;
44 int dport;
45 u32 exp_hash;
46 int dont_wait;
47 int timeout;
48 int size;
49 int max_size;
50 int remove_sa;
51 u8 id;
52 int sarc;
53 u16 queue_mapping;
54 u64 timestamp;
55 };
56
57 static u8 stmmac_test_next_id;
58
59 static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
60 struct stmmac_packet_attrs *attr)
61 {
62 struct sk_buff *skb = NULL;
63 struct udphdr *uhdr = NULL;
64 struct tcphdr *thdr = NULL;
65 struct stmmachdr *shdr;
66 struct ethhdr *ehdr;
67 struct iphdr *ihdr;
68 int iplen, size;
69
70 size = attr->size + STMMAC_TEST_PKT_SIZE;
71 if (attr->vlan) {
72 size += 4;
73 if (attr->vlan > 1)
74 size += 4;
75 }
76
77 if (attr->tcp)
78 size += sizeof(struct tcphdr);
79 else
80 size += sizeof(struct udphdr);
81
82 if (attr->max_size && (attr->max_size > size))
83 size = attr->max_size;
84
85 skb = netdev_alloc_skb(priv->dev, size);
86 if (!skb)
87 return NULL;
88
89 prefetchw(skb->data);
90
91 if (attr->vlan > 1)
92 ehdr = skb_push(skb, ETH_HLEN + 8);
93 else if (attr->vlan)
94 ehdr = skb_push(skb, ETH_HLEN + 4);
95 else if (attr->remove_sa)
96 ehdr = skb_push(skb, ETH_HLEN - 6);
97 else
98 ehdr = skb_push(skb, ETH_HLEN);
99 skb_reset_mac_header(skb);
100
101 skb_set_network_header(skb, skb->len);
102 ihdr = skb_put(skb, sizeof(*ihdr));
103
104 skb_set_transport_header(skb, skb->len);
105 if (attr->tcp)
106 thdr = skb_put(skb, sizeof(*thdr));
107 else
108 uhdr = skb_put(skb, sizeof(*uhdr));
109
110 if (!attr->remove_sa)
111 eth_zero_addr(ehdr->h_source);
112 eth_zero_addr(ehdr->h_dest);
113 if (attr->src && !attr->remove_sa)
114 ether_addr_copy(ehdr->h_source, attr->src);
115 if (attr->dst)
116 ether_addr_copy(ehdr->h_dest, attr->dst);
117
118 if (!attr->remove_sa) {
119 ehdr->h_proto = htons(ETH_P_IP);
120 } else {
121 __be16 *ptr = (__be16 *)ehdr;
122
123 /* HACK */
124 ptr[3] = htons(ETH_P_IP);
125 }
126
127 if (attr->vlan) {
128 __be16 *tag, *proto;
129
130 if (!attr->remove_sa) {
131 tag = (void *)ehdr + ETH_HLEN;
132 proto = (void *)ehdr + (2 * ETH_ALEN);
133 } else {
134 tag = (void *)ehdr + ETH_HLEN - 6;
135 proto = (void *)ehdr + ETH_ALEN;
136 }
137
138 proto[0] = htons(ETH_P_8021Q);
139 tag[0] = htons(attr->vlan_id_out);
140 tag[1] = htons(ETH_P_IP);
141 if (attr->vlan > 1) {
142 proto[0] = htons(ETH_P_8021AD);
143 tag[1] = htons(ETH_P_8021Q);
144 tag[2] = htons(attr->vlan_id_in);
145 tag[3] = htons(ETH_P_IP);
146 }
147 }
148
149 if (attr->tcp) {
150 thdr->source = htons(attr->sport);
151 thdr->dest = htons(attr->dport);
152 thdr->doff = sizeof(struct tcphdr) / 4;
153 thdr->check = 0;
154 } else {
155 uhdr->source = htons(attr->sport);
156 uhdr->dest = htons(attr->dport);
157 uhdr->len = htons(sizeof(*shdr) + sizeof(*uhdr) + attr->size);
158 if (attr->max_size)
159 uhdr->len = htons(attr->max_size -
160 (sizeof(*ihdr) + sizeof(*ehdr)));
161 uhdr->check = 0;
162 }
163
164 ihdr->ihl = 5;
165 ihdr->ttl = 32;
166 ihdr->version = 4;
167 if (attr->tcp)
168 ihdr->protocol = IPPROTO_TCP;
169 else
170 ihdr->protocol = IPPROTO_UDP;
171 iplen = sizeof(*ihdr) + sizeof(*shdr) + attr->size;
172 if (attr->tcp)
173 iplen += sizeof(*thdr);
174 else
175 iplen += sizeof(*uhdr);
176
177 if (attr->max_size)
178 iplen = attr->max_size - sizeof(*ehdr);
179
180 ihdr->tot_len = htons(iplen);
181 ihdr->frag_off = 0;
182 ihdr->saddr = htonl(attr->ip_src);
183 ihdr->daddr = htonl(attr->ip_dst);
184 ihdr->tos = 0;
185 ihdr->id = 0;
186 ip_send_check(ihdr);
187
188 shdr = skb_put(skb, sizeof(*shdr));
189 shdr->version = 0;
190 shdr->magic = cpu_to_be64(STMMAC_TEST_PKT_MAGIC);
191 attr->id = stmmac_test_next_id;
192 shdr->id = stmmac_test_next_id++;
193
194 if (attr->size)
195 skb_put(skb, attr->size);
196 if (attr->max_size && (attr->max_size > skb->len))
197 skb_put(skb, attr->max_size - skb->len);
198
199 skb->csum = 0;
200 skb->ip_summed = CHECKSUM_PARTIAL;
201 if (attr->tcp) {
202 thdr->check = ~tcp_v4_check(skb->len, ihdr->saddr, ihdr->daddr, 0);
203 skb->csum_start = skb_transport_header(skb) - skb->head;
204 skb->csum_offset = offsetof(struct tcphdr, check);
205 } else {
206 udp4_hwcsum(skb, ihdr->saddr, ihdr->daddr);
207 }
208
209 skb->protocol = htons(ETH_P_IP);
210 skb->pkt_type = PACKET_HOST;
211 skb->dev = priv->dev;
212
213 if (attr->timestamp)
214 skb->tstamp = ns_to_ktime(attr->timestamp);
215
216 return skb;
217 }
218
219 static struct sk_buff *stmmac_test_get_arp_skb(struct stmmac_priv *priv,
220 struct stmmac_packet_attrs *attr)
221 {
222 __be32 ip_src = htonl(attr->ip_src);
223 __be32 ip_dst = htonl(attr->ip_dst);
224 struct sk_buff *skb = NULL;
225
226 skb = arp_create(ARPOP_REQUEST, ETH_P_ARP, ip_dst, priv->dev, ip_src,
227 NULL, attr->src, attr->dst);
228 if (!skb)
229 return NULL;
230
231 skb->pkt_type = PACKET_HOST;
232 skb->dev = priv->dev;
233
234 return skb;
235 }
236
237 struct stmmac_test_priv {
238 struct stmmac_packet_attrs *packet;
239 struct packet_type pt;
240 struct completion comp;
241 int double_vlan;
242 int vlan_id;
243 int ok;
244 };
245
246 static int stmmac_test_loopback_validate(struct sk_buff *skb,
247 struct net_device *ndev,
248 struct packet_type *pt,
249 struct net_device *orig_ndev)
250 {
251 struct stmmac_test_priv *tpriv = pt->af_packet_priv;
252 unsigned char *src = tpriv->packet->src;
253 unsigned char *dst = tpriv->packet->dst;
254 struct stmmachdr *shdr;
255 struct ethhdr *ehdr;
256 struct udphdr *uhdr;
257 struct tcphdr *thdr;
258 struct iphdr *ihdr;
259
260 skb = skb_unshare(skb, GFP_ATOMIC);
261 if (!skb)
262 goto out;
263
264 if (skb_linearize(skb))
265 goto out;
266 if (skb_headlen(skb) < (STMMAC_TEST_PKT_SIZE - ETH_HLEN))
267 goto out;
268
269 ehdr = (struct ethhdr *)skb_mac_header(skb);
270 if (dst) {
271 if (!ether_addr_equal_unaligned(ehdr->h_dest, dst))
272 goto out;
273 }
274 if (tpriv->packet->sarc) {
275 if (!ether_addr_equal_unaligned(ehdr->h_source, ehdr->h_dest))
276 goto out;
277 } else if (src) {
278 if (!ether_addr_equal_unaligned(ehdr->h_source, src))
279 goto out;
280 }
281
282 ihdr = ip_hdr(skb);
283 if (tpriv->double_vlan)
284 ihdr = (struct iphdr *)(skb_network_header(skb) + 4);
285
286 if (tpriv->packet->tcp) {
287 if (ihdr->protocol != IPPROTO_TCP)
288 goto out;
289
290 thdr = (struct tcphdr *)((u8 *)ihdr + 4 * ihdr->ihl);
291 if (thdr->dest != htons(tpriv->packet->dport))
292 goto out;
293
294 shdr = (struct stmmachdr *)((u8 *)thdr + sizeof(*thdr));
295 } else {
296 if (ihdr->protocol != IPPROTO_UDP)
297 goto out;
298
299 uhdr = (struct udphdr *)((u8 *)ihdr + 4 * ihdr->ihl);
300 if (uhdr->dest != htons(tpriv->packet->dport))
301 goto out;
302
303 shdr = (struct stmmachdr *)((u8 *)uhdr + sizeof(*uhdr));
304 }
305
306 if (shdr->magic != cpu_to_be64(STMMAC_TEST_PKT_MAGIC))
307 goto out;
308 if (tpriv->packet->exp_hash && !skb->hash)
309 goto out;
310 if (tpriv->packet->id != shdr->id)
311 goto out;
312
313 tpriv->ok = true;
314 complete(&tpriv->comp);
315 out:
316 kfree_skb(skb);
317 return 0;
318 }
319
320 static int __stmmac_test_loopback(struct stmmac_priv *priv,
321 struct stmmac_packet_attrs *attr)
322 {
323 struct stmmac_test_priv *tpriv;
324 struct sk_buff *skb = NULL;
325 int ret = 0;
326
327 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
328 if (!tpriv)
329 return -ENOMEM;
330
331 tpriv->ok = false;
332 init_completion(&tpriv->comp);
333
334 tpriv->pt.type = htons(ETH_P_IP);
335 tpriv->pt.func = stmmac_test_loopback_validate;
336 tpriv->pt.dev = priv->dev;
337 tpriv->pt.af_packet_priv = tpriv;
338 tpriv->packet = attr;
339
340 if (!attr->dont_wait)
341 dev_add_pack(&tpriv->pt);
342
343 skb = stmmac_test_get_udp_skb(priv, attr);
344 if (!skb) {
345 ret = -ENOMEM;
346 goto cleanup;
347 }
348
349 ret = dev_direct_xmit(skb, attr->queue_mapping);
350 if (ret)
351 goto cleanup;
352
353 if (attr->dont_wait)
354 goto cleanup;
355
356 if (!attr->timeout)
357 attr->timeout = STMMAC_LB_TIMEOUT;
358
359 wait_for_completion_timeout(&tpriv->comp, attr->timeout);
360 ret = tpriv->ok ? 0 : -ETIMEDOUT;
361
362 cleanup:
363 if (!attr->dont_wait)
364 dev_remove_pack(&tpriv->pt);
365 kfree(tpriv);
366 return ret;
367 }
368
369 static int stmmac_test_mac_loopback(struct stmmac_priv *priv)
370 {
371 struct stmmac_packet_attrs attr = { };
372
373 attr.dst = priv->dev->dev_addr;
374 return __stmmac_test_loopback(priv, &attr);
375 }
376
377 static int stmmac_test_phy_loopback(struct stmmac_priv *priv)
378 {
379 struct stmmac_packet_attrs attr = { };
380 int ret;
381
382 if (!priv->dev->phydev)
383 return -EOPNOTSUPP;
384
385 ret = phy_loopback(priv->dev->phydev, true);
386 if (ret)
387 return ret;
388
389 attr.dst = priv->dev->dev_addr;
390 ret = __stmmac_test_loopback(priv, &attr);
391
392 phy_loopback(priv->dev->phydev, false);
393 return ret;
394 }
395
396 static int stmmac_test_mmc(struct stmmac_priv *priv)
397 {
398 struct stmmac_counters initial, final;
399 int ret;
400
401 memset(&initial, 0, sizeof(initial));
402 memset(&final, 0, sizeof(final));
403
404 if (!priv->dma_cap.rmon)
405 return -EOPNOTSUPP;
406
407 /* Save previous results into internal struct */
408 stmmac_mmc_read(priv, priv->mmcaddr, &priv->mmc);
409
410 ret = stmmac_test_mac_loopback(priv);
411 if (ret)
412 return ret;
413
414 /* These will be loopback results so no need to save them */
415 stmmac_mmc_read(priv, priv->mmcaddr, &final);
416
417 /*
418 * The number of MMC counters available depends on HW configuration
419 * so we just use this one to validate the feature. I hope there is
420 * not a version without this counter.
421 */
422 if (final.mmc_tx_framecount_g <= initial.mmc_tx_framecount_g)
423 return -EINVAL;
424
425 return 0;
426 }
427
428 static int stmmac_test_eee(struct stmmac_priv *priv)
429 {
430 struct stmmac_extra_stats *initial, *final;
431 int retries = 10;
432 int ret;
433
434 if (!priv->dma_cap.eee || !priv->eee_active)
435 return -EOPNOTSUPP;
436
437 initial = kzalloc(sizeof(*initial), GFP_KERNEL);
438 if (!initial)
439 return -ENOMEM;
440
441 final = kzalloc(sizeof(*final), GFP_KERNEL);
442 if (!final) {
443 ret = -ENOMEM;
444 goto out_free_initial;
445 }
446
447 memcpy(initial, &priv->xstats, sizeof(*initial));
448
449 ret = stmmac_test_mac_loopback(priv);
450 if (ret)
451 goto out_free_final;
452
453 /* We have no traffic in the line so, sooner or later it will go LPI */
454 while (--retries) {
455 memcpy(final, &priv->xstats, sizeof(*final));
456
457 if (final->irq_tx_path_in_lpi_mode_n >
458 initial->irq_tx_path_in_lpi_mode_n)
459 break;
460 msleep(100);
461 }
462
463 if (!retries) {
464 ret = -ETIMEDOUT;
465 goto out_free_final;
466 }
467
468 if (final->irq_tx_path_in_lpi_mode_n <=
469 initial->irq_tx_path_in_lpi_mode_n) {
470 ret = -EINVAL;
471 goto out_free_final;
472 }
473
474 if (final->irq_tx_path_exit_lpi_mode_n <=
475 initial->irq_tx_path_exit_lpi_mode_n) {
476 ret = -EINVAL;
477 goto out_free_final;
478 }
479
480 out_free_final:
481 kfree(final);
482 out_free_initial:
483 kfree(initial);
484 return ret;
485 }
486
487 static int stmmac_filter_check(struct stmmac_priv *priv)
488 {
489 if (!(priv->dev->flags & IFF_PROMISC))
490 return 0;
491
492 netdev_warn(priv->dev, "Test can't be run in promiscuous mode!\n");
493 return -EOPNOTSUPP;
494 }
495
496 static bool stmmac_hash_check(struct stmmac_priv *priv, unsigned char *addr)
497 {
498 int mc_offset = 32 - priv->hw->mcast_bits_log2;
499 struct netdev_hw_addr *ha;
500 u32 hash, hash_nr;
501
502 /* First compute the hash for desired addr */
503 hash = bitrev32(~crc32_le(~0, addr, 6)) >> mc_offset;
504 hash_nr = hash >> 5;
505 hash = 1 << (hash & 0x1f);
506
507 /* Now, check if it collides with any existing one */
508 netdev_for_each_mc_addr(ha, priv->dev) {
509 u32 nr = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)) >> mc_offset;
510 if (((nr >> 5) == hash_nr) && ((1 << (nr & 0x1f)) == hash))
511 return false;
512 }
513
514 /* No collisions, address is good to go */
515 return true;
516 }
517
518 static bool stmmac_perfect_check(struct stmmac_priv *priv, unsigned char *addr)
519 {
520 struct netdev_hw_addr *ha;
521
522 /* Check if it collides with any existing one */
523 netdev_for_each_uc_addr(ha, priv->dev) {
524 if (!memcmp(ha->addr, addr, ETH_ALEN))
525 return false;
526 }
527
528 /* No collisions, address is good to go */
529 return true;
530 }
531
532 static int stmmac_test_hfilt(struct stmmac_priv *priv)
533 {
534 unsigned char gd_addr[ETH_ALEN] = {0xf1, 0xee, 0xdd, 0xcc, 0xbb, 0xaa};
535 unsigned char bd_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
536 struct stmmac_packet_attrs attr = { };
537 int ret, tries = 256;
538
539 ret = stmmac_filter_check(priv);
540 if (ret)
541 return ret;
542
543 if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
544 return -EOPNOTSUPP;
545
546 while (--tries) {
547 /* We only need to check the bd_addr for collisions */
548 bd_addr[ETH_ALEN - 1] = tries;
549 if (stmmac_hash_check(priv, bd_addr))
550 break;
551 }
552
553 if (!tries)
554 return -EOPNOTSUPP;
555
556 ret = dev_mc_add(priv->dev, gd_addr);
557 if (ret)
558 return ret;
559
560 attr.dst = gd_addr;
561
562 /* Shall receive packet */
563 ret = __stmmac_test_loopback(priv, &attr);
564 if (ret)
565 goto cleanup;
566
567 attr.dst = bd_addr;
568
569 /* Shall NOT receive packet */
570 ret = __stmmac_test_loopback(priv, &attr);
571 ret = ret ? 0 : -EINVAL;
572
573 cleanup:
574 dev_mc_del(priv->dev, gd_addr);
575 return ret;
576 }
577
578 static int stmmac_test_pfilt(struct stmmac_priv *priv)
579 {
580 unsigned char gd_addr[ETH_ALEN] = {0xf0, 0x01, 0x44, 0x55, 0x66, 0x77};
581 unsigned char bd_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
582 struct stmmac_packet_attrs attr = { };
583 int ret, tries = 256;
584
585 if (stmmac_filter_check(priv))
586 return -EOPNOTSUPP;
587 if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
588 return -EOPNOTSUPP;
589
590 while (--tries) {
591 /* We only need to check the bd_addr for collisions */
592 bd_addr[ETH_ALEN - 1] = tries;
593 if (stmmac_perfect_check(priv, bd_addr))
594 break;
595 }
596
597 if (!tries)
598 return -EOPNOTSUPP;
599
600 ret = dev_uc_add(priv->dev, gd_addr);
601 if (ret)
602 return ret;
603
604 attr.dst = gd_addr;
605
606 /* Shall receive packet */
607 ret = __stmmac_test_loopback(priv, &attr);
608 if (ret)
609 goto cleanup;
610
611 attr.dst = bd_addr;
612
613 /* Shall NOT receive packet */
614 ret = __stmmac_test_loopback(priv, &attr);
615 ret = ret ? 0 : -EINVAL;
616
617 cleanup:
618 dev_uc_del(priv->dev, gd_addr);
619 return ret;
620 }
621
622 static int stmmac_test_mcfilt(struct stmmac_priv *priv)
623 {
624 unsigned char uc_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
625 unsigned char mc_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
626 struct stmmac_packet_attrs attr = { };
627 int ret, tries = 256;
628
629 if (stmmac_filter_check(priv))
630 return -EOPNOTSUPP;
631 if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
632 return -EOPNOTSUPP;
633 if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
634 return -EOPNOTSUPP;
635
636 while (--tries) {
637 /* We only need to check the mc_addr for collisions */
638 mc_addr[ETH_ALEN - 1] = tries;
639 if (stmmac_hash_check(priv, mc_addr))
640 break;
641 }
642
643 if (!tries)
644 return -EOPNOTSUPP;
645
646 ret = dev_uc_add(priv->dev, uc_addr);
647 if (ret)
648 return ret;
649
650 attr.dst = uc_addr;
651
652 /* Shall receive packet */
653 ret = __stmmac_test_loopback(priv, &attr);
654 if (ret)
655 goto cleanup;
656
657 attr.dst = mc_addr;
658
659 /* Shall NOT receive packet */
660 ret = __stmmac_test_loopback(priv, &attr);
661 ret = ret ? 0 : -EINVAL;
662
663 cleanup:
664 dev_uc_del(priv->dev, uc_addr);
665 return ret;
666 }
667
668 static int stmmac_test_ucfilt(struct stmmac_priv *priv)
669 {
670 unsigned char uc_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
671 unsigned char mc_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
672 struct stmmac_packet_attrs attr = { };
673 int ret, tries = 256;
674
675 if (stmmac_filter_check(priv))
676 return -EOPNOTSUPP;
677 if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
678 return -EOPNOTSUPP;
679 if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
680 return -EOPNOTSUPP;
681
682 while (--tries) {
683 /* We only need to check the uc_addr for collisions */
684 uc_addr[ETH_ALEN - 1] = tries;
685 if (stmmac_perfect_check(priv, uc_addr))
686 break;
687 }
688
689 if (!tries)
690 return -EOPNOTSUPP;
691
692 ret = dev_mc_add(priv->dev, mc_addr);
693 if (ret)
694 return ret;
695
696 attr.dst = mc_addr;
697
698 /* Shall receive packet */
699 ret = __stmmac_test_loopback(priv, &attr);
700 if (ret)
701 goto cleanup;
702
703 attr.dst = uc_addr;
704
705 /* Shall NOT receive packet */
706 ret = __stmmac_test_loopback(priv, &attr);
707 ret = ret ? 0 : -EINVAL;
708
709 cleanup:
710 dev_mc_del(priv->dev, mc_addr);
711 return ret;
712 }
713
714 static int stmmac_test_flowctrl_validate(struct sk_buff *skb,
715 struct net_device *ndev,
716 struct packet_type *pt,
717 struct net_device *orig_ndev)
718 {
719 struct stmmac_test_priv *tpriv = pt->af_packet_priv;
720 struct ethhdr *ehdr;
721
722 ehdr = (struct ethhdr *)skb_mac_header(skb);
723 if (!ether_addr_equal_unaligned(ehdr->h_source, orig_ndev->dev_addr))
724 goto out;
725 if (ehdr->h_proto != htons(ETH_P_PAUSE))
726 goto out;
727
728 tpriv->ok = true;
729 complete(&tpriv->comp);
730 out:
731 kfree_skb(skb);
732 return 0;
733 }
734
735 static int stmmac_test_flowctrl(struct stmmac_priv *priv)
736 {
737 unsigned char paddr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00, 0x01};
738 struct phy_device *phydev = priv->dev->phydev;
739 u32 rx_cnt = priv->plat->rx_queues_to_use;
740 struct stmmac_test_priv *tpriv;
741 unsigned int pkt_count;
742 int i, ret = 0;
743
744 if (!phydev || (!phydev->pause && !phydev->asym_pause))
745 return -EOPNOTSUPP;
746
747 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
748 if (!tpriv)
749 return -ENOMEM;
750
751 tpriv->ok = false;
752 init_completion(&tpriv->comp);
753 tpriv->pt.type = htons(ETH_P_PAUSE);
754 tpriv->pt.func = stmmac_test_flowctrl_validate;
755 tpriv->pt.dev = priv->dev;
756 tpriv->pt.af_packet_priv = tpriv;
757 dev_add_pack(&tpriv->pt);
758
759 /* Compute minimum number of packets to make FIFO full */
760 pkt_count = priv->plat->rx_fifo_size;
761 if (!pkt_count)
762 pkt_count = priv->dma_cap.rx_fifo_size;
763 pkt_count /= 1400;
764 pkt_count *= 2;
765
766 for (i = 0; i < rx_cnt; i++)
767 stmmac_stop_rx(priv, priv->ioaddr, i);
768
769 ret = dev_set_promiscuity(priv->dev, 1);
770 if (ret)
771 goto cleanup;
772
773 ret = dev_mc_add(priv->dev, paddr);
774 if (ret)
775 goto cleanup;
776
777 for (i = 0; i < pkt_count; i++) {
778 struct stmmac_packet_attrs attr = { };
779
780 attr.dst = priv->dev->dev_addr;
781 attr.dont_wait = true;
782 attr.size = 1400;
783
784 ret = __stmmac_test_loopback(priv, &attr);
785 if (ret)
786 goto cleanup;
787 if (tpriv->ok)
788 break;
789 }
790
791 /* Wait for some time in case RX Watchdog is enabled */
792 msleep(200);
793
794 for (i = 0; i < rx_cnt; i++) {
795 struct stmmac_channel *ch = &priv->channel[i];
796 u32 tail;
797
798 tail = priv->rx_queue[i].dma_rx_phy +
799 (DMA_RX_SIZE * sizeof(struct dma_desc));
800
801 stmmac_set_rx_tail_ptr(priv, priv->ioaddr, tail, i);
802 stmmac_start_rx(priv, priv->ioaddr, i);
803
804 local_bh_disable();
805 napi_reschedule(&ch->rx_napi);
806 local_bh_enable();
807 }
808
809 wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
810 ret = tpriv->ok ? 0 : -ETIMEDOUT;
811
812 cleanup:
813 dev_mc_del(priv->dev, paddr);
814 dev_set_promiscuity(priv->dev, -1);
815 dev_remove_pack(&tpriv->pt);
816 kfree(tpriv);
817 return ret;
818 }
819
820 static int stmmac_test_rss(struct stmmac_priv *priv)
821 {
822 struct stmmac_packet_attrs attr = { };
823
824 if (!priv->dma_cap.rssen || !priv->rss.enable)
825 return -EOPNOTSUPP;
826
827 attr.dst = priv->dev->dev_addr;
828 attr.exp_hash = true;
829 attr.sport = 0x321;
830 attr.dport = 0x123;
831
832 return __stmmac_test_loopback(priv, &attr);
833 }
834
835 static int stmmac_test_vlan_validate(struct sk_buff *skb,
836 struct net_device *ndev,
837 struct packet_type *pt,
838 struct net_device *orig_ndev)
839 {
840 struct stmmac_test_priv *tpriv = pt->af_packet_priv;
841 struct stmmachdr *shdr;
842 struct ethhdr *ehdr;
843 struct udphdr *uhdr;
844 struct iphdr *ihdr;
845 u16 proto;
846
847 proto = tpriv->double_vlan ? ETH_P_8021AD : ETH_P_8021Q;
848
849 skb = skb_unshare(skb, GFP_ATOMIC);
850 if (!skb)
851 goto out;
852
853 if (skb_linearize(skb))
854 goto out;
855 if (skb_headlen(skb) < (STMMAC_TEST_PKT_SIZE - ETH_HLEN))
856 goto out;
857 if (tpriv->vlan_id) {
858 if (skb->vlan_proto != htons(proto))
859 goto out;
860 if (skb->vlan_tci != tpriv->vlan_id) {
861 /* Means filter did not work. */
862 tpriv->ok = false;
863 complete(&tpriv->comp);
864 goto out;
865 }
866 }
867
868 ehdr = (struct ethhdr *)skb_mac_header(skb);
869 if (!ether_addr_equal_unaligned(ehdr->h_dest, tpriv->packet->dst))
870 goto out;
871
872 ihdr = ip_hdr(skb);
873 if (tpriv->double_vlan)
874 ihdr = (struct iphdr *)(skb_network_header(skb) + 4);
875 if (ihdr->protocol != IPPROTO_UDP)
876 goto out;
877
878 uhdr = (struct udphdr *)((u8 *)ihdr + 4 * ihdr->ihl);
879 if (uhdr->dest != htons(tpriv->packet->dport))
880 goto out;
881
882 shdr = (struct stmmachdr *)((u8 *)uhdr + sizeof(*uhdr));
883 if (shdr->magic != cpu_to_be64(STMMAC_TEST_PKT_MAGIC))
884 goto out;
885
886 tpriv->ok = true;
887 complete(&tpriv->comp);
888
889 out:
890 kfree_skb(skb);
891 return 0;
892 }
893
894 static int __stmmac_test_vlanfilt(struct stmmac_priv *priv)
895 {
896 struct stmmac_packet_attrs attr = { };
897 struct stmmac_test_priv *tpriv;
898 struct sk_buff *skb = NULL;
899 int ret = 0, i;
900
901 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
902 if (!tpriv)
903 return -ENOMEM;
904
905 tpriv->ok = false;
906 init_completion(&tpriv->comp);
907
908 tpriv->pt.type = htons(ETH_P_IP);
909 tpriv->pt.func = stmmac_test_vlan_validate;
910 tpriv->pt.dev = priv->dev;
911 tpriv->pt.af_packet_priv = tpriv;
912 tpriv->packet = &attr;
913
914 /*
915 * As we use HASH filtering, false positives may appear. This is a
916 * specially chosen ID so that adjacent IDs (+4) have different
917 * HASH values.
918 */
919 tpriv->vlan_id = 0x123;
920 dev_add_pack(&tpriv->pt);
921
922 ret = vlan_vid_add(priv->dev, htons(ETH_P_8021Q), tpriv->vlan_id);
923 if (ret)
924 goto cleanup;
925
926 for (i = 0; i < 4; i++) {
927 attr.vlan = 1;
928 attr.vlan_id_out = tpriv->vlan_id + i;
929 attr.dst = priv->dev->dev_addr;
930 attr.sport = 9;
931 attr.dport = 9;
932
933 skb = stmmac_test_get_udp_skb(priv, &attr);
934 if (!skb) {
935 ret = -ENOMEM;
936 goto vlan_del;
937 }
938
939 ret = dev_direct_xmit(skb, 0);
940 if (ret)
941 goto vlan_del;
942
943 wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
944 ret = tpriv->ok ? 0 : -ETIMEDOUT;
945 if (ret && !i) {
946 goto vlan_del;
947 } else if (!ret && i) {
948 ret = -EINVAL;
949 goto vlan_del;
950 } else {
951 ret = 0;
952 }
953
954 tpriv->ok = false;
955 }
956
957 vlan_del:
958 vlan_vid_del(priv->dev, htons(ETH_P_8021Q), tpriv->vlan_id);
959 cleanup:
960 dev_remove_pack(&tpriv->pt);
961 kfree(tpriv);
962 return ret;
963 }
964
965 static int stmmac_test_vlanfilt(struct stmmac_priv *priv)
966 {
967 if (!priv->dma_cap.vlhash)
968 return -EOPNOTSUPP;
969
970 return __stmmac_test_vlanfilt(priv);
971 }
972
973 static int stmmac_test_vlanfilt_perfect(struct stmmac_priv *priv)
974 {
975 int ret, prev_cap = priv->dma_cap.vlhash;
976
977 if (!(priv->dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
978 return -EOPNOTSUPP;
979
980 priv->dma_cap.vlhash = 0;
981 ret = __stmmac_test_vlanfilt(priv);
982 priv->dma_cap.vlhash = prev_cap;
983
984 return ret;
985 }
986
987 static int __stmmac_test_dvlanfilt(struct stmmac_priv *priv)
988 {
989 struct stmmac_packet_attrs attr = { };
990 struct stmmac_test_priv *tpriv;
991 struct sk_buff *skb = NULL;
992 int ret = 0, i;
993
994 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
995 if (!tpriv)
996 return -ENOMEM;
997
998 tpriv->ok = false;
999 tpriv->double_vlan = true;
1000 init_completion(&tpriv->comp);
1001
1002 tpriv->pt.type = htons(ETH_P_8021Q);
1003 tpriv->pt.func = stmmac_test_vlan_validate;
1004 tpriv->pt.dev = priv->dev;
1005 tpriv->pt.af_packet_priv = tpriv;
1006 tpriv->packet = &attr;
1007
1008 /*
1009 * As we use HASH filtering, false positives may appear. This is a
1010 * specially chosen ID so that adjacent IDs (+4) have different
1011 * HASH values.
1012 */
1013 tpriv->vlan_id = 0x123;
1014 dev_add_pack(&tpriv->pt);
1015
1016 ret = vlan_vid_add(priv->dev, htons(ETH_P_8021AD), tpriv->vlan_id);
1017 if (ret)
1018 goto cleanup;
1019
1020 for (i = 0; i < 4; i++) {
1021 attr.vlan = 2;
1022 attr.vlan_id_out = tpriv->vlan_id + i;
1023 attr.dst = priv->dev->dev_addr;
1024 attr.sport = 9;
1025 attr.dport = 9;
1026
1027 skb = stmmac_test_get_udp_skb(priv, &attr);
1028 if (!skb) {
1029 ret = -ENOMEM;
1030 goto vlan_del;
1031 }
1032
1033 ret = dev_direct_xmit(skb, 0);
1034 if (ret)
1035 goto vlan_del;
1036
1037 wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
1038 ret = tpriv->ok ? 0 : -ETIMEDOUT;
1039 if (ret && !i) {
1040 goto vlan_del;
1041 } else if (!ret && i) {
1042 ret = -EINVAL;
1043 goto vlan_del;
1044 } else {
1045 ret = 0;
1046 }
1047
1048 tpriv->ok = false;
1049 }
1050
1051 vlan_del:
1052 vlan_vid_del(priv->dev, htons(ETH_P_8021AD), tpriv->vlan_id);
1053 cleanup:
1054 dev_remove_pack(&tpriv->pt);
1055 kfree(tpriv);
1056 return ret;
1057 }
1058
1059 static int stmmac_test_dvlanfilt(struct stmmac_priv *priv)
1060 {
1061 if (!priv->dma_cap.vlhash)
1062 return -EOPNOTSUPP;
1063
1064 return __stmmac_test_dvlanfilt(priv);
1065 }
1066
1067 static int stmmac_test_dvlanfilt_perfect(struct stmmac_priv *priv)
1068 {
1069 int ret, prev_cap = priv->dma_cap.vlhash;
1070
1071 if (!(priv->dev->features & NETIF_F_HW_VLAN_STAG_FILTER))
1072 return -EOPNOTSUPP;
1073
1074 priv->dma_cap.vlhash = 0;
1075 ret = __stmmac_test_dvlanfilt(priv);
1076 priv->dma_cap.vlhash = prev_cap;
1077
1078 return ret;
1079 }
1080
1081 #ifdef CONFIG_NET_CLS_ACT
1082 static int stmmac_test_rxp(struct stmmac_priv *priv)
1083 {
1084 unsigned char addr[ETH_ALEN] = {0xde, 0xad, 0xbe, 0xef, 0x00, 0x00};
1085 struct tc_cls_u32_offload cls_u32 = { };
1086 struct stmmac_packet_attrs attr = { };
1087 struct tc_action **actions, *act;
1088 struct tc_u32_sel *sel;
1089 struct tcf_exts *exts;
1090 int ret, i, nk = 1;
1091
1092 if (!tc_can_offload(priv->dev))
1093 return -EOPNOTSUPP;
1094 if (!priv->dma_cap.frpsel)
1095 return -EOPNOTSUPP;
1096
1097 sel = kzalloc(sizeof(*sel) + nk * sizeof(struct tc_u32_key), GFP_KERNEL);
1098 if (!sel)
1099 return -ENOMEM;
1100
1101 exts = kzalloc(sizeof(*exts), GFP_KERNEL);
1102 if (!exts) {
1103 ret = -ENOMEM;
1104 goto cleanup_sel;
1105 }
1106
1107 actions = kzalloc(nk * sizeof(*actions), GFP_KERNEL);
1108 if (!actions) {
1109 ret = -ENOMEM;
1110 goto cleanup_exts;
1111 }
1112
1113 act = kzalloc(nk * sizeof(*act), GFP_KERNEL);
1114 if (!act) {
1115 ret = -ENOMEM;
1116 goto cleanup_actions;
1117 }
1118
1119 cls_u32.command = TC_CLSU32_NEW_KNODE;
1120 cls_u32.common.chain_index = 0;
1121 cls_u32.common.protocol = htons(ETH_P_ALL);
1122 cls_u32.knode.exts = exts;
1123 cls_u32.knode.sel = sel;
1124 cls_u32.knode.handle = 0x123;
1125
1126 exts->nr_actions = nk;
1127 exts->actions = actions;
1128 for (i = 0; i < nk; i++) {
1129 struct tcf_gact *gact = to_gact(&act[i]);
1130
1131 actions[i] = &act[i];
1132 gact->tcf_action = TC_ACT_SHOT;
1133 }
1134
1135 sel->nkeys = nk;
1136 sel->offshift = 0;
1137 sel->keys[0].off = 6;
1138 sel->keys[0].val = htonl(0xdeadbeef);
1139 sel->keys[0].mask = ~0x0;
1140
1141 ret = stmmac_tc_setup_cls_u32(priv, priv, &cls_u32);
1142 if (ret)
1143 goto cleanup_act;
1144
1145 attr.dst = priv->dev->dev_addr;
1146 attr.src = addr;
1147
1148 ret = __stmmac_test_loopback(priv, &attr);
1149 ret = ret ? 0 : -EINVAL; /* Shall NOT receive packet */
1150
1151 cls_u32.command = TC_CLSU32_DELETE_KNODE;
1152 stmmac_tc_setup_cls_u32(priv, priv, &cls_u32);
1153
1154 cleanup_act:
1155 kfree(act);
1156 cleanup_actions:
1157 kfree(actions);
1158 cleanup_exts:
1159 kfree(exts);
1160 cleanup_sel:
1161 kfree(sel);
1162 return ret;
1163 }
1164 #else
1165 static int stmmac_test_rxp(struct stmmac_priv *priv)
1166 {
1167 return -EOPNOTSUPP;
1168 }
1169 #endif
1170
1171 static int stmmac_test_desc_sai(struct stmmac_priv *priv)
1172 {
1173 unsigned char src[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
1174 struct stmmac_packet_attrs attr = { };
1175 int ret;
1176
1177 if (!priv->dma_cap.vlins)
1178 return -EOPNOTSUPP;
1179
1180 attr.remove_sa = true;
1181 attr.sarc = true;
1182 attr.src = src;
1183 attr.dst = priv->dev->dev_addr;
1184
1185 priv->sarc_type = 0x1;
1186
1187 ret = __stmmac_test_loopback(priv, &attr);
1188
1189 priv->sarc_type = 0x0;
1190 return ret;
1191 }
1192
1193 static int stmmac_test_desc_sar(struct stmmac_priv *priv)
1194 {
1195 unsigned char src[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
1196 struct stmmac_packet_attrs attr = { };
1197 int ret;
1198
1199 if (!priv->dma_cap.vlins)
1200 return -EOPNOTSUPP;
1201
1202 attr.sarc = true;
1203 attr.src = src;
1204 attr.dst = priv->dev->dev_addr;
1205
1206 priv->sarc_type = 0x2;
1207
1208 ret = __stmmac_test_loopback(priv, &attr);
1209
1210 priv->sarc_type = 0x0;
1211 return ret;
1212 }
1213
1214 static int stmmac_test_reg_sai(struct stmmac_priv *priv)
1215 {
1216 unsigned char src[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
1217 struct stmmac_packet_attrs attr = { };
1218 int ret;
1219
1220 if (!priv->dma_cap.vlins)
1221 return -EOPNOTSUPP;
1222
1223 attr.remove_sa = true;
1224 attr.sarc = true;
1225 attr.src = src;
1226 attr.dst = priv->dev->dev_addr;
1227
1228 if (stmmac_sarc_configure(priv, priv->ioaddr, 0x2))
1229 return -EOPNOTSUPP;
1230
1231 ret = __stmmac_test_loopback(priv, &attr);
1232
1233 stmmac_sarc_configure(priv, priv->ioaddr, 0x0);
1234 return ret;
1235 }
1236
1237 static int stmmac_test_reg_sar(struct stmmac_priv *priv)
1238 {
1239 unsigned char src[ETH_ALEN] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
1240 struct stmmac_packet_attrs attr = { };
1241 int ret;
1242
1243 if (!priv->dma_cap.vlins)
1244 return -EOPNOTSUPP;
1245
1246 attr.sarc = true;
1247 attr.src = src;
1248 attr.dst = priv->dev->dev_addr;
1249
1250 if (stmmac_sarc_configure(priv, priv->ioaddr, 0x3))
1251 return -EOPNOTSUPP;
1252
1253 ret = __stmmac_test_loopback(priv, &attr);
1254
1255 stmmac_sarc_configure(priv, priv->ioaddr, 0x0);
1256 return ret;
1257 }
1258
1259 static int stmmac_test_vlanoff_common(struct stmmac_priv *priv, bool svlan)
1260 {
1261 struct stmmac_packet_attrs attr = { };
1262 struct stmmac_test_priv *tpriv;
1263 struct sk_buff *skb = NULL;
1264 int ret = 0;
1265 u16 proto;
1266
1267 if (!priv->dma_cap.vlins)
1268 return -EOPNOTSUPP;
1269
1270 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
1271 if (!tpriv)
1272 return -ENOMEM;
1273
1274 proto = svlan ? ETH_P_8021AD : ETH_P_8021Q;
1275
1276 tpriv->ok = false;
1277 tpriv->double_vlan = svlan;
1278 init_completion(&tpriv->comp);
1279
1280 tpriv->pt.type = svlan ? htons(ETH_P_8021Q) : htons(ETH_P_IP);
1281 tpriv->pt.func = stmmac_test_vlan_validate;
1282 tpriv->pt.dev = priv->dev;
1283 tpriv->pt.af_packet_priv = tpriv;
1284 tpriv->packet = &attr;
1285 tpriv->vlan_id = 0x123;
1286 dev_add_pack(&tpriv->pt);
1287
1288 ret = vlan_vid_add(priv->dev, htons(proto), tpriv->vlan_id);
1289 if (ret)
1290 goto cleanup;
1291
1292 attr.dst = priv->dev->dev_addr;
1293
1294 skb = stmmac_test_get_udp_skb(priv, &attr);
1295 if (!skb) {
1296 ret = -ENOMEM;
1297 goto vlan_del;
1298 }
1299
1300 __vlan_hwaccel_put_tag(skb, htons(proto), tpriv->vlan_id);
1301 skb->protocol = htons(proto);
1302
1303 ret = dev_direct_xmit(skb, 0);
1304 if (ret)
1305 goto vlan_del;
1306
1307 wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
1308 ret = tpriv->ok ? 0 : -ETIMEDOUT;
1309
1310 vlan_del:
1311 vlan_vid_del(priv->dev, htons(proto), tpriv->vlan_id);
1312 cleanup:
1313 dev_remove_pack(&tpriv->pt);
1314 kfree(tpriv);
1315 return ret;
1316 }
1317
1318 static int stmmac_test_vlanoff(struct stmmac_priv *priv)
1319 {
1320 return stmmac_test_vlanoff_common(priv, false);
1321 }
1322
1323 static int stmmac_test_svlanoff(struct stmmac_priv *priv)
1324 {
1325 if (!priv->dma_cap.dvlan)
1326 return -EOPNOTSUPP;
1327 return stmmac_test_vlanoff_common(priv, true);
1328 }
1329
1330 #ifdef CONFIG_NET_CLS_ACT
1331 static int __stmmac_test_l3filt(struct stmmac_priv *priv, u32 dst, u32 src,
1332 u32 dst_mask, u32 src_mask)
1333 {
1334 struct flow_dissector_key_ipv4_addrs key, mask;
1335 unsigned long dummy_cookie = 0xdeadbeef;
1336 struct stmmac_packet_attrs attr = { };
1337 struct flow_dissector *dissector;
1338 struct flow_cls_offload *cls;
1339 int ret, old_enable = 0;
1340 struct flow_rule *rule;
1341
1342 if (!tc_can_offload(priv->dev))
1343 return -EOPNOTSUPP;
1344 if (!priv->dma_cap.l3l4fnum)
1345 return -EOPNOTSUPP;
1346 if (priv->rss.enable) {
1347 old_enable = priv->rss.enable;
1348 priv->rss.enable = false;
1349 stmmac_rss_configure(priv, priv->hw, NULL,
1350 priv->plat->rx_queues_to_use);
1351 }
1352
1353 dissector = kzalloc(sizeof(*dissector), GFP_KERNEL);
1354 if (!dissector) {
1355 ret = -ENOMEM;
1356 goto cleanup_rss;
1357 }
1358
1359 dissector->used_keys |= (1 << FLOW_DISSECTOR_KEY_IPV4_ADDRS);
1360 dissector->offset[FLOW_DISSECTOR_KEY_IPV4_ADDRS] = 0;
1361
1362 cls = kzalloc(sizeof(*cls), GFP_KERNEL);
1363 if (!cls) {
1364 ret = -ENOMEM;
1365 goto cleanup_dissector;
1366 }
1367
1368 cls->common.chain_index = 0;
1369 cls->command = FLOW_CLS_REPLACE;
1370 cls->cookie = dummy_cookie;
1371
1372 rule = kzalloc(struct_size(rule, action.entries, 1), GFP_KERNEL);
1373 if (!rule) {
1374 ret = -ENOMEM;
1375 goto cleanup_cls;
1376 }
1377
1378 rule->match.dissector = dissector;
1379 rule->match.key = (void *)&key;
1380 rule->match.mask = (void *)&mask;
1381
1382 key.src = htonl(src);
1383 key.dst = htonl(dst);
1384 mask.src = src_mask;
1385 mask.dst = dst_mask;
1386
1387 cls->rule = rule;
1388
1389 rule->action.entries[0].id = FLOW_ACTION_DROP;
1390 rule->action.entries[0].hw_stats_type = FLOW_ACTION_HW_STATS_ANY;
1391 rule->action.num_entries = 1;
1392
1393 attr.dst = priv->dev->dev_addr;
1394 attr.ip_dst = dst;
1395 attr.ip_src = src;
1396
1397 /* Shall receive packet */
1398 ret = __stmmac_test_loopback(priv, &attr);
1399 if (ret)
1400 goto cleanup_rule;
1401
1402 ret = stmmac_tc_setup_cls(priv, priv, cls);
1403 if (ret)
1404 goto cleanup_rule;
1405
1406 /* Shall NOT receive packet */
1407 ret = __stmmac_test_loopback(priv, &attr);
1408 ret = ret ? 0 : -EINVAL;
1409
1410 cls->command = FLOW_CLS_DESTROY;
1411 stmmac_tc_setup_cls(priv, priv, cls);
1412 cleanup_rule:
1413 kfree(rule);
1414 cleanup_cls:
1415 kfree(cls);
1416 cleanup_dissector:
1417 kfree(dissector);
1418 cleanup_rss:
1419 if (old_enable) {
1420 priv->rss.enable = old_enable;
1421 stmmac_rss_configure(priv, priv->hw, &priv->rss,
1422 priv->plat->rx_queues_to_use);
1423 }
1424
1425 return ret;
1426 }
1427 #else
1428 static int __stmmac_test_l3filt(struct stmmac_priv *priv, u32 dst, u32 src,
1429 u32 dst_mask, u32 src_mask)
1430 {
1431 return -EOPNOTSUPP;
1432 }
1433 #endif
1434
1435 static int stmmac_test_l3filt_da(struct stmmac_priv *priv)
1436 {
1437 u32 addr = 0x10203040;
1438
1439 return __stmmac_test_l3filt(priv, addr, 0, ~0, 0);
1440 }
1441
1442 static int stmmac_test_l3filt_sa(struct stmmac_priv *priv)
1443 {
1444 u32 addr = 0x10203040;
1445
1446 return __stmmac_test_l3filt(priv, 0, addr, 0, ~0);
1447 }
1448
1449 #ifdef CONFIG_NET_CLS_ACT
1450 static int __stmmac_test_l4filt(struct stmmac_priv *priv, u32 dst, u32 src,
1451 u32 dst_mask, u32 src_mask, bool udp)
1452 {
1453 struct {
1454 struct flow_dissector_key_basic bkey;
1455 struct flow_dissector_key_ports key;
1456 } __aligned(BITS_PER_LONG / 8) keys;
1457 struct {
1458 struct flow_dissector_key_basic bmask;
1459 struct flow_dissector_key_ports mask;
1460 } __aligned(BITS_PER_LONG / 8) masks;
1461 unsigned long dummy_cookie = 0xdeadbeef;
1462 struct stmmac_packet_attrs attr = { };
1463 struct flow_dissector *dissector;
1464 struct flow_cls_offload *cls;
1465 int ret, old_enable = 0;
1466 struct flow_rule *rule;
1467
1468 if (!tc_can_offload(priv->dev))
1469 return -EOPNOTSUPP;
1470 if (!priv->dma_cap.l3l4fnum)
1471 return -EOPNOTSUPP;
1472 if (priv->rss.enable) {
1473 old_enable = priv->rss.enable;
1474 priv->rss.enable = false;
1475 stmmac_rss_configure(priv, priv->hw, NULL,
1476 priv->plat->rx_queues_to_use);
1477 }
1478
1479 dissector = kzalloc(sizeof(*dissector), GFP_KERNEL);
1480 if (!dissector) {
1481 ret = -ENOMEM;
1482 goto cleanup_rss;
1483 }
1484
1485 dissector->used_keys |= (1 << FLOW_DISSECTOR_KEY_BASIC);
1486 dissector->used_keys |= (1 << FLOW_DISSECTOR_KEY_PORTS);
1487 dissector->offset[FLOW_DISSECTOR_KEY_BASIC] = 0;
1488 dissector->offset[FLOW_DISSECTOR_KEY_PORTS] = offsetof(typeof(keys), key);
1489
1490 cls = kzalloc(sizeof(*cls), GFP_KERNEL);
1491 if (!cls) {
1492 ret = -ENOMEM;
1493 goto cleanup_dissector;
1494 }
1495
1496 cls->common.chain_index = 0;
1497 cls->command = FLOW_CLS_REPLACE;
1498 cls->cookie = dummy_cookie;
1499
1500 rule = kzalloc(struct_size(rule, action.entries, 1), GFP_KERNEL);
1501 if (!rule) {
1502 ret = -ENOMEM;
1503 goto cleanup_cls;
1504 }
1505
1506 rule->match.dissector = dissector;
1507 rule->match.key = (void *)&keys;
1508 rule->match.mask = (void *)&masks;
1509
1510 keys.bkey.ip_proto = udp ? IPPROTO_UDP : IPPROTO_TCP;
1511 keys.key.src = htons(src);
1512 keys.key.dst = htons(dst);
1513 masks.mask.src = src_mask;
1514 masks.mask.dst = dst_mask;
1515
1516 cls->rule = rule;
1517
1518 rule->action.entries[0].id = FLOW_ACTION_DROP;
1519 rule->action.entries[0].hw_stats_type = FLOW_ACTION_HW_STATS_ANY;
1520 rule->action.num_entries = 1;
1521
1522 attr.dst = priv->dev->dev_addr;
1523 attr.tcp = !udp;
1524 attr.sport = src;
1525 attr.dport = dst;
1526 attr.ip_dst = 0;
1527
1528 /* Shall receive packet */
1529 ret = __stmmac_test_loopback(priv, &attr);
1530 if (ret)
1531 goto cleanup_rule;
1532
1533 ret = stmmac_tc_setup_cls(priv, priv, cls);
1534 if (ret)
1535 goto cleanup_rule;
1536
1537 /* Shall NOT receive packet */
1538 ret = __stmmac_test_loopback(priv, &attr);
1539 ret = ret ? 0 : -EINVAL;
1540
1541 cls->command = FLOW_CLS_DESTROY;
1542 stmmac_tc_setup_cls(priv, priv, cls);
1543 cleanup_rule:
1544 kfree(rule);
1545 cleanup_cls:
1546 kfree(cls);
1547 cleanup_dissector:
1548 kfree(dissector);
1549 cleanup_rss:
1550 if (old_enable) {
1551 priv->rss.enable = old_enable;
1552 stmmac_rss_configure(priv, priv->hw, &priv->rss,
1553 priv->plat->rx_queues_to_use);
1554 }
1555
1556 return ret;
1557 }
1558 #else
1559 static int __stmmac_test_l4filt(struct stmmac_priv *priv, u32 dst, u32 src,
1560 u32 dst_mask, u32 src_mask, bool udp)
1561 {
1562 return -EOPNOTSUPP;
1563 }
1564 #endif
1565
1566 static int stmmac_test_l4filt_da_tcp(struct stmmac_priv *priv)
1567 {
1568 u16 dummy_port = 0x123;
1569
1570 return __stmmac_test_l4filt(priv, dummy_port, 0, ~0, 0, false);
1571 }
1572
1573 static int stmmac_test_l4filt_sa_tcp(struct stmmac_priv *priv)
1574 {
1575 u16 dummy_port = 0x123;
1576
1577 return __stmmac_test_l4filt(priv, 0, dummy_port, 0, ~0, false);
1578 }
1579
1580 static int stmmac_test_l4filt_da_udp(struct stmmac_priv *priv)
1581 {
1582 u16 dummy_port = 0x123;
1583
1584 return __stmmac_test_l4filt(priv, dummy_port, 0, ~0, 0, true);
1585 }
1586
1587 static int stmmac_test_l4filt_sa_udp(struct stmmac_priv *priv)
1588 {
1589 u16 dummy_port = 0x123;
1590
1591 return __stmmac_test_l4filt(priv, 0, dummy_port, 0, ~0, true);
1592 }
1593
1594 static int stmmac_test_arp_validate(struct sk_buff *skb,
1595 struct net_device *ndev,
1596 struct packet_type *pt,
1597 struct net_device *orig_ndev)
1598 {
1599 struct stmmac_test_priv *tpriv = pt->af_packet_priv;
1600 struct ethhdr *ehdr;
1601 struct arphdr *ahdr;
1602
1603 ehdr = (struct ethhdr *)skb_mac_header(skb);
1604 if (!ether_addr_equal_unaligned(ehdr->h_dest, tpriv->packet->src))
1605 goto out;
1606
1607 ahdr = arp_hdr(skb);
1608 if (ahdr->ar_op != htons(ARPOP_REPLY))
1609 goto out;
1610
1611 tpriv->ok = true;
1612 complete(&tpriv->comp);
1613 out:
1614 kfree_skb(skb);
1615 return 0;
1616 }
1617
1618 static int stmmac_test_arpoffload(struct stmmac_priv *priv)
1619 {
1620 unsigned char src[ETH_ALEN] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06};
1621 unsigned char dst[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
1622 struct stmmac_packet_attrs attr = { };
1623 struct stmmac_test_priv *tpriv;
1624 struct sk_buff *skb = NULL;
1625 u32 ip_addr = 0xdeadcafe;
1626 u32 ip_src = 0xdeadbeef;
1627 int ret;
1628
1629 if (!priv->dma_cap.arpoffsel)
1630 return -EOPNOTSUPP;
1631
1632 tpriv = kzalloc(sizeof(*tpriv), GFP_KERNEL);
1633 if (!tpriv)
1634 return -ENOMEM;
1635
1636 tpriv->ok = false;
1637 init_completion(&tpriv->comp);
1638
1639 tpriv->pt.type = htons(ETH_P_ARP);
1640 tpriv->pt.func = stmmac_test_arp_validate;
1641 tpriv->pt.dev = priv->dev;
1642 tpriv->pt.af_packet_priv = tpriv;
1643 tpriv->packet = &attr;
1644 dev_add_pack(&tpriv->pt);
1645
1646 attr.src = src;
1647 attr.ip_src = ip_src;
1648 attr.dst = dst;
1649 attr.ip_dst = ip_addr;
1650
1651 skb = stmmac_test_get_arp_skb(priv, &attr);
1652 if (!skb) {
1653 ret = -ENOMEM;
1654 goto cleanup;
1655 }
1656
1657 ret = stmmac_set_arp_offload(priv, priv->hw, true, ip_addr);
1658 if (ret)
1659 goto cleanup;
1660
1661 ret = dev_set_promiscuity(priv->dev, 1);
1662 if (ret)
1663 goto cleanup;
1664
1665 ret = dev_direct_xmit(skb, 0);
1666 if (ret)
1667 goto cleanup_promisc;
1668
1669 wait_for_completion_timeout(&tpriv->comp, STMMAC_LB_TIMEOUT);
1670 ret = tpriv->ok ? 0 : -ETIMEDOUT;
1671
1672 cleanup_promisc:
1673 dev_set_promiscuity(priv->dev, -1);
1674 cleanup:
1675 stmmac_set_arp_offload(priv, priv->hw, false, 0x0);
1676 dev_remove_pack(&tpriv->pt);
1677 kfree(tpriv);
1678 return ret;
1679 }
1680
1681 static int __stmmac_test_jumbo(struct stmmac_priv *priv, u16 queue)
1682 {
1683 struct stmmac_packet_attrs attr = { };
1684 int size = priv->dma_buf_sz;
1685
1686 attr.dst = priv->dev->dev_addr;
1687 attr.max_size = size - ETH_FCS_LEN;
1688 attr.queue_mapping = queue;
1689
1690 return __stmmac_test_loopback(priv, &attr);
1691 }
1692
1693 static int stmmac_test_jumbo(struct stmmac_priv *priv)
1694 {
1695 return __stmmac_test_jumbo(priv, 0);
1696 }
1697
1698 static int stmmac_test_mjumbo(struct stmmac_priv *priv)
1699 {
1700 u32 chan, tx_cnt = priv->plat->tx_queues_to_use;
1701 int ret;
1702
1703 if (tx_cnt <= 1)
1704 return -EOPNOTSUPP;
1705
1706 for (chan = 0; chan < tx_cnt; chan++) {
1707 ret = __stmmac_test_jumbo(priv, chan);
1708 if (ret)
1709 return ret;
1710 }
1711
1712 return 0;
1713 }
1714
1715 static int stmmac_test_sph(struct stmmac_priv *priv)
1716 {
1717 unsigned long cnt_end, cnt_start = priv->xstats.rx_split_hdr_pkt_n;
1718 struct stmmac_packet_attrs attr = { };
1719 int ret;
1720
1721 if (!priv->sph)
1722 return -EOPNOTSUPP;
1723
1724 /* Check for UDP first */
1725 attr.dst = priv->dev->dev_addr;
1726 attr.tcp = false;
1727
1728 ret = __stmmac_test_loopback(priv, &attr);
1729 if (ret)
1730 return ret;
1731
1732 cnt_end = priv->xstats.rx_split_hdr_pkt_n;
1733 if (cnt_end <= cnt_start)
1734 return -EINVAL;
1735
1736 /* Check for TCP now */
1737 cnt_start = cnt_end;
1738
1739 attr.dst = priv->dev->dev_addr;
1740 attr.tcp = true;
1741
1742 ret = __stmmac_test_loopback(priv, &attr);
1743 if (ret)
1744 return ret;
1745
1746 cnt_end = priv->xstats.rx_split_hdr_pkt_n;
1747 if (cnt_end <= cnt_start)
1748 return -EINVAL;
1749
1750 return 0;
1751 }
1752
1753 static int stmmac_test_tbs(struct stmmac_priv *priv)
1754 {
1755 #define STMMAC_TBS_LT_OFFSET (500 * 1000 * 1000) /* 500 ms*/
1756 struct stmmac_packet_attrs attr = { };
1757 struct tc_etf_qopt_offload qopt;
1758 u64 start_time, curr_time = 0;
1759 unsigned long flags;
1760 int ret, i;
1761
1762 if (!priv->hwts_tx_en)
1763 return -EOPNOTSUPP;
1764
1765 /* Find first TBS enabled Queue, if any */
1766 for (i = 0; i < priv->plat->tx_queues_to_use; i++)
1767 if (priv->tx_queue[i].tbs & STMMAC_TBS_AVAIL)
1768 break;
1769
1770 if (i >= priv->plat->tx_queues_to_use)
1771 return -EOPNOTSUPP;
1772
1773 qopt.enable = true;
1774 qopt.queue = i;
1775
1776 ret = stmmac_tc_setup_etf(priv, priv, &qopt);
1777 if (ret)
1778 return ret;
1779
1780 spin_lock_irqsave(&priv->ptp_lock, flags);
1781 stmmac_get_systime(priv, priv->ptpaddr, &curr_time);
1782 spin_unlock_irqrestore(&priv->ptp_lock, flags);
1783
1784 if (!curr_time) {
1785 ret = -EOPNOTSUPP;
1786 goto fail_disable;
1787 }
1788
1789 start_time = curr_time;
1790 curr_time += STMMAC_TBS_LT_OFFSET;
1791
1792 attr.dst = priv->dev->dev_addr;
1793 attr.timestamp = curr_time;
1794 attr.timeout = nsecs_to_jiffies(2 * STMMAC_TBS_LT_OFFSET);
1795 attr.queue_mapping = i;
1796
1797 ret = __stmmac_test_loopback(priv, &attr);
1798 if (ret)
1799 goto fail_disable;
1800
1801 /* Check if expected time has elapsed */
1802 spin_lock_irqsave(&priv->ptp_lock, flags);
1803 stmmac_get_systime(priv, priv->ptpaddr, &curr_time);
1804 spin_unlock_irqrestore(&priv->ptp_lock, flags);
1805
1806 if ((curr_time - start_time) < STMMAC_TBS_LT_OFFSET)
1807 ret = -EINVAL;
1808
1809 fail_disable:
1810 qopt.enable = false;
1811 stmmac_tc_setup_etf(priv, priv, &qopt);
1812 return ret;
1813 }
1814
1815 #define STMMAC_LOOPBACK_NONE 0
1816 #define STMMAC_LOOPBACK_MAC 1
1817 #define STMMAC_LOOPBACK_PHY 2
1818
1819 static const struct stmmac_test {
1820 char name[ETH_GSTRING_LEN];
1821 int lb;
1822 int (*fn)(struct stmmac_priv *priv);
1823 } stmmac_selftests[] = {
1824 {
1825 .name = "MAC Loopback ",
1826 .lb = STMMAC_LOOPBACK_MAC,
1827 .fn = stmmac_test_mac_loopback,
1828 }, {
1829 .name = "PHY Loopback ",
1830 .lb = STMMAC_LOOPBACK_NONE, /* Test will handle it */
1831 .fn = stmmac_test_phy_loopback,
1832 }, {
1833 .name = "MMC Counters ",
1834 .lb = STMMAC_LOOPBACK_PHY,
1835 .fn = stmmac_test_mmc,
1836 }, {
1837 .name = "EEE ",
1838 .lb = STMMAC_LOOPBACK_PHY,
1839 .fn = stmmac_test_eee,
1840 }, {
1841 .name = "Hash Filter MC ",
1842 .lb = STMMAC_LOOPBACK_PHY,
1843 .fn = stmmac_test_hfilt,
1844 }, {
1845 .name = "Perfect Filter UC ",
1846 .lb = STMMAC_LOOPBACK_PHY,
1847 .fn = stmmac_test_pfilt,
1848 }, {
1849 .name = "MC Filter ",
1850 .lb = STMMAC_LOOPBACK_PHY,
1851 .fn = stmmac_test_mcfilt,
1852 }, {
1853 .name = "UC Filter ",
1854 .lb = STMMAC_LOOPBACK_PHY,
1855 .fn = stmmac_test_ucfilt,
1856 }, {
1857 .name = "Flow Control ",
1858 .lb = STMMAC_LOOPBACK_PHY,
1859 .fn = stmmac_test_flowctrl,
1860 }, {
1861 .name = "RSS ",
1862 .lb = STMMAC_LOOPBACK_PHY,
1863 .fn = stmmac_test_rss,
1864 }, {
1865 .name = "VLAN Filtering ",
1866 .lb = STMMAC_LOOPBACK_PHY,
1867 .fn = stmmac_test_vlanfilt,
1868 }, {
1869 .name = "VLAN Filtering (perf) ",
1870 .lb = STMMAC_LOOPBACK_PHY,
1871 .fn = stmmac_test_vlanfilt_perfect,
1872 }, {
1873 .name = "Double VLAN Filter ",
1874 .lb = STMMAC_LOOPBACK_PHY,
1875 .fn = stmmac_test_dvlanfilt,
1876 }, {
1877 .name = "Double VLAN Filter (perf) ",
1878 .lb = STMMAC_LOOPBACK_PHY,
1879 .fn = stmmac_test_dvlanfilt_perfect,
1880 }, {
1881 .name = "Flexible RX Parser ",
1882 .lb = STMMAC_LOOPBACK_PHY,
1883 .fn = stmmac_test_rxp,
1884 }, {
1885 .name = "SA Insertion (desc) ",
1886 .lb = STMMAC_LOOPBACK_PHY,
1887 .fn = stmmac_test_desc_sai,
1888 }, {
1889 .name = "SA Replacement (desc) ",
1890 .lb = STMMAC_LOOPBACK_PHY,
1891 .fn = stmmac_test_desc_sar,
1892 }, {
1893 .name = "SA Insertion (reg) ",
1894 .lb = STMMAC_LOOPBACK_PHY,
1895 .fn = stmmac_test_reg_sai,
1896 }, {
1897 .name = "SA Replacement (reg) ",
1898 .lb = STMMAC_LOOPBACK_PHY,
1899 .fn = stmmac_test_reg_sar,
1900 }, {
1901 .name = "VLAN TX Insertion ",
1902 .lb = STMMAC_LOOPBACK_PHY,
1903 .fn = stmmac_test_vlanoff,
1904 }, {
1905 .name = "SVLAN TX Insertion ",
1906 .lb = STMMAC_LOOPBACK_PHY,
1907 .fn = stmmac_test_svlanoff,
1908 }, {
1909 .name = "L3 DA Filtering ",
1910 .lb = STMMAC_LOOPBACK_PHY,
1911 .fn = stmmac_test_l3filt_da,
1912 }, {
1913 .name = "L3 SA Filtering ",
1914 .lb = STMMAC_LOOPBACK_PHY,
1915 .fn = stmmac_test_l3filt_sa,
1916 }, {
1917 .name = "L4 DA TCP Filtering ",
1918 .lb = STMMAC_LOOPBACK_PHY,
1919 .fn = stmmac_test_l4filt_da_tcp,
1920 }, {
1921 .name = "L4 SA TCP Filtering ",
1922 .lb = STMMAC_LOOPBACK_PHY,
1923 .fn = stmmac_test_l4filt_sa_tcp,
1924 }, {
1925 .name = "L4 DA UDP Filtering ",
1926 .lb = STMMAC_LOOPBACK_PHY,
1927 .fn = stmmac_test_l4filt_da_udp,
1928 }, {
1929 .name = "L4 SA UDP Filtering ",
1930 .lb = STMMAC_LOOPBACK_PHY,
1931 .fn = stmmac_test_l4filt_sa_udp,
1932 }, {
1933 .name = "ARP Offload ",
1934 .lb = STMMAC_LOOPBACK_PHY,
1935 .fn = stmmac_test_arpoffload,
1936 }, {
1937 .name = "Jumbo Frame ",
1938 .lb = STMMAC_LOOPBACK_PHY,
1939 .fn = stmmac_test_jumbo,
1940 }, {
1941 .name = "Multichannel Jumbo ",
1942 .lb = STMMAC_LOOPBACK_PHY,
1943 .fn = stmmac_test_mjumbo,
1944 }, {
1945 .name = "Split Header ",
1946 .lb = STMMAC_LOOPBACK_PHY,
1947 .fn = stmmac_test_sph,
1948 }, {
1949 .name = "TBS (ETF Scheduler) ",
1950 .lb = STMMAC_LOOPBACK_PHY,
1951 .fn = stmmac_test_tbs,
1952 },
1953 };
1954
1955 void stmmac_selftest_run(struct net_device *dev,
1956 struct ethtool_test *etest, u64 *buf)
1957 {
1958 struct stmmac_priv *priv = netdev_priv(dev);
1959 int count = stmmac_selftest_get_count(priv);
1960 int i, ret;
1961
1962 memset(buf, 0, sizeof(*buf) * count);
1963 stmmac_test_next_id = 0;
1964
1965 if (etest->flags != ETH_TEST_FL_OFFLINE) {
1966 netdev_err(priv->dev, "Only offline tests are supported\n");
1967 etest->flags |= ETH_TEST_FL_FAILED;
1968 return;
1969 } else if (!netif_carrier_ok(dev)) {
1970 netdev_err(priv->dev, "You need valid Link to execute tests\n");
1971 etest->flags |= ETH_TEST_FL_FAILED;
1972 return;
1973 }
1974
1975 /* Wait for queues drain */
1976 msleep(200);
1977
1978 for (i = 0; i < count; i++) {
1979 ret = 0;
1980
1981 switch (stmmac_selftests[i].lb) {
1982 case STMMAC_LOOPBACK_PHY:
1983 ret = -EOPNOTSUPP;
1984 if (dev->phydev)
1985 ret = phy_loopback(dev->phydev, true);
1986 if (!ret)
1987 break;
1988 /* Fallthrough */
1989 case STMMAC_LOOPBACK_MAC:
1990 ret = stmmac_set_mac_loopback(priv, priv->ioaddr, true);
1991 break;
1992 case STMMAC_LOOPBACK_NONE:
1993 break;
1994 default:
1995 ret = -EOPNOTSUPP;
1996 break;
1997 }
1998
1999 /*
2000 * First tests will always be MAC / PHY loobpack. If any of
2001 * them is not supported we abort earlier.
2002 */
2003 if (ret) {
2004 netdev_err(priv->dev, "Loopback is not supported\n");
2005 etest->flags |= ETH_TEST_FL_FAILED;
2006 break;
2007 }
2008
2009 ret = stmmac_selftests[i].fn(priv);
2010 if (ret && (ret != -EOPNOTSUPP))
2011 etest->flags |= ETH_TEST_FL_FAILED;
2012 buf[i] = ret;
2013
2014 switch (stmmac_selftests[i].lb) {
2015 case STMMAC_LOOPBACK_PHY:
2016 ret = -EOPNOTSUPP;
2017 if (dev->phydev)
2018 ret = phy_loopback(dev->phydev, false);
2019 if (!ret)
2020 break;
2021 /* Fallthrough */
2022 case STMMAC_LOOPBACK_MAC:
2023 stmmac_set_mac_loopback(priv, priv->ioaddr, false);
2024 break;
2025 default:
2026 break;
2027 }
2028 }
2029 }
2030
2031 void stmmac_selftest_get_strings(struct stmmac_priv *priv, u8 *data)
2032 {
2033 u8 *p = data;
2034 int i;
2035
2036 for (i = 0; i < stmmac_selftest_get_count(priv); i++) {
2037 snprintf(p, ETH_GSTRING_LEN, "%2d. %s", i + 1,
2038 stmmac_selftests[i].name);
2039 p += ETH_GSTRING_LEN;
2040 }
2041 }
2042
2043 int stmmac_selftest_get_count(struct stmmac_priv *priv)
2044 {
2045 return ARRAY_SIZE(stmmac_selftests);
2046 }
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