1// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2/* Copyright 2014-2016 Freescale Semiconductor Inc.
3 * Copyright 2016-2022 NXP
4 */
5
6#include <linux/net_tstamp.h>
7#include <linux/nospec.h>
8
9#include "dpni.h" /* DPNI_LINK_OPT_* */
10#include "dpaa2-eth.h"
11
12/* To be kept in sync with DPNI statistics */
13static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = {
14 "[hw] rx frames",
15 "[hw] rx bytes",
16 "[hw] rx mcast frames",
17 "[hw] rx mcast bytes",
18 "[hw] rx bcast frames",
19 "[hw] rx bcast bytes",
20 "[hw] tx frames",
21 "[hw] tx bytes",
22 "[hw] tx mcast frames",
23 "[hw] tx mcast bytes",
24 "[hw] tx bcast frames",
25 "[hw] tx bcast bytes",
26 "[hw] rx filtered frames",
27 "[hw] rx discarded frames",
28 "[hw] rx nobuffer discards",
29 "[hw] tx discarded frames",
30 "[hw] tx confirmed frames",
31 "[hw] tx dequeued bytes",
32 "[hw] tx dequeued frames",
33 "[hw] tx rejected bytes",
34 "[hw] tx rejected frames",
35 "[hw] tx pending frames",
36};
37
38#define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats)
39
40static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
41 /* per-cpu stats */
42 "[drv] tx conf frames",
43 "[drv] tx conf bytes",
44 "[drv] tx sg frames",
45 "[drv] tx sg bytes",
46 "[drv] tx tso frames",
47 "[drv] tx tso bytes",
48 "[drv] rx sg frames",
49 "[drv] rx sg bytes",
50 "[drv] tx converted sg frames",
51 "[drv] tx converted sg bytes",
52 "[drv] enqueue portal busy",
53 /* Channel stats */
54 "[drv] dequeue portal busy",
55 "[drv] channel pull errors",
56 "[drv] cdan",
57 "[drv] xdp drop",
58 "[drv] xdp tx",
59 "[drv] xdp tx errors",
60 "[drv] xdp redirect",
61 /* FQ stats */
62 "[qbman] rx pending frames",
63 "[qbman] rx pending bytes",
64 "[qbman] tx conf pending frames",
65 "[qbman] tx conf pending bytes",
66 "[qbman] buffer count",
67};
68
69#define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras)
70
71static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
72 struct ethtool_drvinfo *drvinfo)
73{
74 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
75
76 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
77
78 snprintf(buf: drvinfo->fw_version, size: sizeof(drvinfo->fw_version),
79 fmt: "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor);
80
81 strscpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
82 sizeof(drvinfo->bus_info));
83}
84
85static int dpaa2_eth_nway_reset(struct net_device *net_dev)
86{
87 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
88 int err = -EOPNOTSUPP;
89
90 mutex_lock(&priv->mac_lock);
91
92 if (dpaa2_eth_is_type_phy(priv))
93 err = phylink_ethtool_nway_reset(priv->mac->phylink);
94
95 mutex_unlock(lock: &priv->mac_lock);
96
97 return err;
98}
99
100static int
101dpaa2_eth_get_link_ksettings(struct net_device *net_dev,
102 struct ethtool_link_ksettings *link_settings)
103{
104 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
105 int err;
106
107 mutex_lock(&priv->mac_lock);
108
109 if (dpaa2_eth_is_type_phy(priv)) {
110 err = phylink_ethtool_ksettings_get(priv->mac->phylink,
111 link_settings);
112 mutex_unlock(lock: &priv->mac_lock);
113 return err;
114 }
115
116 mutex_unlock(lock: &priv->mac_lock);
117
118 link_settings->base.autoneg = AUTONEG_DISABLE;
119 if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX))
120 link_settings->base.duplex = DUPLEX_FULL;
121 link_settings->base.speed = priv->link_state.rate;
122
123 return 0;
124}
125
126static int
127dpaa2_eth_set_link_ksettings(struct net_device *net_dev,
128 const struct ethtool_link_ksettings *link_settings)
129{
130 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
131 int err = -EOPNOTSUPP;
132
133 mutex_lock(&priv->mac_lock);
134
135 if (dpaa2_eth_is_type_phy(priv))
136 err = phylink_ethtool_ksettings_set(priv->mac->phylink,
137 link_settings);
138
139 mutex_unlock(lock: &priv->mac_lock);
140
141 return err;
142}
143
144static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
145 struct ethtool_pauseparam *pause)
146{
147 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
148 u64 link_options = priv->link_state.options;
149
150 mutex_lock(&priv->mac_lock);
151
152 if (dpaa2_eth_is_type_phy(priv)) {
153 phylink_ethtool_get_pauseparam(priv->mac->phylink, pause);
154 mutex_unlock(lock: &priv->mac_lock);
155 return;
156 }
157
158 mutex_unlock(lock: &priv->mac_lock);
159
160 pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
161 pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
162 pause->autoneg = AUTONEG_DISABLE;
163}
164
165static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
166 struct ethtool_pauseparam *pause)
167{
168 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
169 struct dpni_link_cfg cfg = {0};
170 int err;
171
172 if (!dpaa2_eth_has_pause_support(priv)) {
173 netdev_info(dev: net_dev, format: "No pause frame support for DPNI version < %d.%d\n",
174 DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR);
175 return -EOPNOTSUPP;
176 }
177
178 mutex_lock(&priv->mac_lock);
179
180 if (dpaa2_eth_is_type_phy(priv)) {
181 err = phylink_ethtool_set_pauseparam(priv->mac->phylink,
182 pause);
183 mutex_unlock(lock: &priv->mac_lock);
184 return err;
185 }
186
187 mutex_unlock(lock: &priv->mac_lock);
188
189 if (pause->autoneg)
190 return -EOPNOTSUPP;
191
192 cfg.rate = priv->link_state.rate;
193 cfg.options = priv->link_state.options;
194 if (pause->rx_pause)
195 cfg.options |= DPNI_LINK_OPT_PAUSE;
196 else
197 cfg.options &= ~DPNI_LINK_OPT_PAUSE;
198 if (!!pause->rx_pause ^ !!pause->tx_pause)
199 cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE;
200 else
201 cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE;
202
203 if (cfg.options == priv->link_state.options)
204 return 0;
205
206 err = dpni_set_link_cfg(mc_io: priv->mc_io, cmd_flags: 0, token: priv->mc_token, cfg: &cfg);
207 if (err) {
208 netdev_err(dev: net_dev, format: "dpni_set_link_state failed\n");
209 return err;
210 }
211
212 priv->link_state.options = cfg.options;
213
214 return 0;
215}
216
217static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
218 u8 *data)
219{
220 int i;
221
222 switch (stringset) {
223 case ETH_SS_STATS:
224 for (i = 0; i < DPAA2_ETH_NUM_STATS; i++)
225 ethtool_puts(data: &data, str: dpaa2_ethtool_stats[i]);
226 for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++)
227 ethtool_puts(data: &data, str: dpaa2_ethtool_extras[i]);
228 dpaa2_mac_get_strings(data: &data);
229 break;
230 }
231}
232
233static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
234{
235 switch (sset) {
236 case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
237 return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS +
238 dpaa2_mac_get_sset_count();
239 default:
240 return -EOPNOTSUPP;
241 }
242}
243
244/** Fill in hardware counters, as returned by MC.
245 */
246static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev,
247 struct ethtool_stats *stats,
248 u64 *data)
249{
250 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
251 union dpni_statistics dpni_stats;
252 int dpni_stats_page_size[DPNI_STATISTICS_CNT] = {
253 sizeof(dpni_stats.page_0),
254 sizeof(dpni_stats.page_1),
255 sizeof(dpni_stats.page_2),
256 sizeof(dpni_stats.page_3),
257 sizeof(dpni_stats.page_4),
258 sizeof(dpni_stats.page_5),
259 sizeof(dpni_stats.page_6),
260 };
261 u32 fcnt_rx_total = 0, fcnt_tx_total = 0;
262 u32 bcnt_rx_total = 0, bcnt_tx_total = 0;
263 struct dpaa2_eth_ch_stats *ch_stats;
264 struct dpaa2_eth_drv_stats *extras;
265 u32 buf_cnt, buf_cnt_total = 0;
266 int j, k, err, num_cnt, i = 0;
267 u32 fcnt, bcnt;
268
269 memset(data, 0,
270 sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS));
271
272 /* Print standard counters, from DPNI statistics */
273 for (j = 0; j <= 6; j++) {
274 /* We're not interested in pages 4 & 5 for now */
275 if (j == 4 || j == 5)
276 continue;
277 err = dpni_get_statistics(mc_io: priv->mc_io, cmd_flags: 0, token: priv->mc_token,
278 page: j, stat: &dpni_stats);
279 if (err == -EINVAL)
280 /* Older firmware versions don't support all pages */
281 memset(&dpni_stats, 0, sizeof(dpni_stats));
282 else if (err)
283 netdev_warn(dev: net_dev, format: "dpni_get_stats(%d) failed\n", j);
284
285 num_cnt = dpni_stats_page_size[j] / sizeof(u64);
286 for (k = 0; k < num_cnt; k++)
287 *(data + i++) = dpni_stats.raw.counter[k];
288 }
289
290 /* Print per-cpu extra stats */
291 for_each_online_cpu(k) {
292 extras = per_cpu_ptr(priv->percpu_extras, k);
293 for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++)
294 *((__u64 *)data + i + j) += *((__u64 *)extras + j);
295 }
296 i += j;
297
298 /* Per-channel stats */
299 for (k = 0; k < priv->num_channels; k++) {
300 ch_stats = &priv->channel[k]->stats;
301 for (j = 0; j < DPAA2_ETH_CH_STATS; j++)
302 *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j);
303 }
304 i += j;
305
306 for (j = 0; j < priv->num_fqs; j++) {
307 /* Print FQ instantaneous counts */
308 err = dpaa2_io_query_fq_count(NULL, fqid: priv->fq[j].fqid,
309 fcnt: &fcnt, bcnt: &bcnt);
310 if (err) {
311 netdev_warn(dev: net_dev, format: "FQ query error %d", err);
312 return;
313 }
314
315 if (priv->fq[j].type == DPAA2_TX_CONF_FQ) {
316 fcnt_tx_total += fcnt;
317 bcnt_tx_total += bcnt;
318 } else {
319 fcnt_rx_total += fcnt;
320 bcnt_rx_total += bcnt;
321 }
322 }
323
324 *(data + i++) = fcnt_rx_total;
325 *(data + i++) = bcnt_rx_total;
326 *(data + i++) = fcnt_tx_total;
327 *(data + i++) = bcnt_tx_total;
328
329 for (j = 0; j < priv->num_bps; j++) {
330 err = dpaa2_io_query_bp_count(NULL, bpid: priv->bp[j]->bpid, num: &buf_cnt);
331 if (err) {
332 netdev_warn(dev: net_dev, format: "Buffer count query error %d\n", err);
333 return;
334 }
335 buf_cnt_total += buf_cnt;
336 }
337 *(data + i++) = buf_cnt_total;
338
339 mutex_lock(&priv->mac_lock);
340
341 if (dpaa2_eth_has_mac(priv))
342 dpaa2_mac_get_ethtool_stats(mac: priv->mac, data: data + i);
343
344 mutex_unlock(lock: &priv->mac_lock);
345}
346
347static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask,
348 void *key, void *mask, u64 *fields)
349{
350 int off;
351
352 if (eth_mask->h_proto) {
353 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_TYPE);
354 *(__be16 *)(key + off) = eth_value->h_proto;
355 *(__be16 *)(mask + off) = eth_mask->h_proto;
356 *fields |= DPAA2_ETH_DIST_ETHTYPE;
357 }
358
359 if (!is_zero_ether_addr(addr: eth_mask->h_source)) {
360 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_SA);
361 ether_addr_copy(dst: key + off, src: eth_value->h_source);
362 ether_addr_copy(dst: mask + off, src: eth_mask->h_source);
363 *fields |= DPAA2_ETH_DIST_ETHSRC;
364 }
365
366 if (!is_zero_ether_addr(addr: eth_mask->h_dest)) {
367 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_DA);
368 ether_addr_copy(dst: key + off, src: eth_value->h_dest);
369 ether_addr_copy(dst: mask + off, src: eth_mask->h_dest);
370 *fields |= DPAA2_ETH_DIST_ETHDST;
371 }
372
373 return 0;
374}
375
376static int dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec *uip_value,
377 struct ethtool_usrip4_spec *uip_mask,
378 void *key, void *mask, u64 *fields)
379{
380 int off;
381 u32 tmp_value, tmp_mask;
382
383 if (uip_mask->tos || uip_mask->ip_ver)
384 return -EOPNOTSUPP;
385
386 if (uip_mask->ip4src) {
387 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_SRC);
388 *(__be32 *)(key + off) = uip_value->ip4src;
389 *(__be32 *)(mask + off) = uip_mask->ip4src;
390 *fields |= DPAA2_ETH_DIST_IPSRC;
391 }
392
393 if (uip_mask->ip4dst) {
394 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_DST);
395 *(__be32 *)(key + off) = uip_value->ip4dst;
396 *(__be32 *)(mask + off) = uip_mask->ip4dst;
397 *fields |= DPAA2_ETH_DIST_IPDST;
398 }
399
400 if (uip_mask->proto) {
401 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_PROTO);
402 *(u8 *)(key + off) = uip_value->proto;
403 *(u8 *)(mask + off) = uip_mask->proto;
404 *fields |= DPAA2_ETH_DIST_IPPROTO;
405 }
406
407 if (uip_mask->l4_4_bytes) {
408 tmp_value = be32_to_cpu(uip_value->l4_4_bytes);
409 tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes);
410
411 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
412 *(__be16 *)(key + off) = htons(tmp_value >> 16);
413 *(__be16 *)(mask + off) = htons(tmp_mask >> 16);
414 *fields |= DPAA2_ETH_DIST_L4SRC;
415
416 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
417 *(__be16 *)(key + off) = htons(tmp_value & 0xFFFF);
418 *(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF);
419 *fields |= DPAA2_ETH_DIST_L4DST;
420 }
421
422 /* Only apply the rule for IPv4 frames */
423 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_TYPE);
424 *(__be16 *)(key + off) = htons(ETH_P_IP);
425 *(__be16 *)(mask + off) = htons(0xFFFF);
426 *fields |= DPAA2_ETH_DIST_ETHTYPE;
427
428 return 0;
429}
430
431static int dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec *l4_value,
432 struct ethtool_tcpip4_spec *l4_mask,
433 void *key, void *mask, u8 l4_proto, u64 *fields)
434{
435 int off;
436
437 if (l4_mask->tos)
438 return -EOPNOTSUPP;
439
440 if (l4_mask->ip4src) {
441 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_SRC);
442 *(__be32 *)(key + off) = l4_value->ip4src;
443 *(__be32 *)(mask + off) = l4_mask->ip4src;
444 *fields |= DPAA2_ETH_DIST_IPSRC;
445 }
446
447 if (l4_mask->ip4dst) {
448 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_DST);
449 *(__be32 *)(key + off) = l4_value->ip4dst;
450 *(__be32 *)(mask + off) = l4_mask->ip4dst;
451 *fields |= DPAA2_ETH_DIST_IPDST;
452 }
453
454 if (l4_mask->psrc) {
455 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_UDP, NH_FLD_UDP_PORT_SRC);
456 *(__be16 *)(key + off) = l4_value->psrc;
457 *(__be16 *)(mask + off) = l4_mask->psrc;
458 *fields |= DPAA2_ETH_DIST_L4SRC;
459 }
460
461 if (l4_mask->pdst) {
462 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_UDP, NH_FLD_UDP_PORT_DST);
463 *(__be16 *)(key + off) = l4_value->pdst;
464 *(__be16 *)(mask + off) = l4_mask->pdst;
465 *fields |= DPAA2_ETH_DIST_L4DST;
466 }
467
468 /* Only apply the rule for IPv4 frames with the specified L4 proto */
469 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_TYPE);
470 *(__be16 *)(key + off) = htons(ETH_P_IP);
471 *(__be16 *)(mask + off) = htons(0xFFFF);
472 *fields |= DPAA2_ETH_DIST_ETHTYPE;
473
474 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_IP, NH_FLD_IP_PROTO);
475 *(u8 *)(key + off) = l4_proto;
476 *(u8 *)(mask + off) = 0xFF;
477 *fields |= DPAA2_ETH_DIST_IPPROTO;
478
479 return 0;
480}
481
482static int dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext *ext_value,
483 struct ethtool_flow_ext *ext_mask,
484 void *key, void *mask, u64 *fields)
485{
486 int off;
487
488 if (ext_mask->vlan_etype)
489 return -EOPNOTSUPP;
490
491 if (ext_mask->vlan_tci) {
492 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_VLAN, NH_FLD_VLAN_TCI);
493 *(__be16 *)(key + off) = ext_value->vlan_tci;
494 *(__be16 *)(mask + off) = ext_mask->vlan_tci;
495 *fields |= DPAA2_ETH_DIST_VLAN;
496 }
497
498 return 0;
499}
500
501static int dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext *ext_value,
502 struct ethtool_flow_ext *ext_mask,
503 void *key, void *mask, u64 *fields)
504{
505 int off;
506
507 if (!is_zero_ether_addr(addr: ext_mask->h_dest)) {
508 off = dpaa2_eth_cls_fld_off(prot: NET_PROT_ETH, NH_FLD_ETH_DA);
509 ether_addr_copy(dst: key + off, src: ext_value->h_dest);
510 ether_addr_copy(dst: mask + off, src: ext_mask->h_dest);
511 *fields |= DPAA2_ETH_DIST_ETHDST;
512 }
513
514 return 0;
515}
516
517static int dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key,
518 void *mask, u64 *fields)
519{
520 int err;
521
522 switch (fs->flow_type & 0xFF) {
523 case ETHER_FLOW:
524 err = dpaa2_eth_prep_eth_rule(eth_value: &fs->h_u.ether_spec, eth_mask: &fs->m_u.ether_spec,
525 key, mask, fields);
526 break;
527 case IP_USER_FLOW:
528 err = dpaa2_eth_prep_uip_rule(uip_value: &fs->h_u.usr_ip4_spec,
529 uip_mask: &fs->m_u.usr_ip4_spec, key, mask, fields);
530 break;
531 case TCP_V4_FLOW:
532 err = dpaa2_eth_prep_l4_rule(l4_value: &fs->h_u.tcp_ip4_spec, l4_mask: &fs->m_u.tcp_ip4_spec,
533 key, mask, IPPROTO_TCP, fields);
534 break;
535 case UDP_V4_FLOW:
536 err = dpaa2_eth_prep_l4_rule(l4_value: &fs->h_u.udp_ip4_spec, l4_mask: &fs->m_u.udp_ip4_spec,
537 key, mask, IPPROTO_UDP, fields);
538 break;
539 case SCTP_V4_FLOW:
540 err = dpaa2_eth_prep_l4_rule(l4_value: &fs->h_u.sctp_ip4_spec,
541 l4_mask: &fs->m_u.sctp_ip4_spec, key, mask,
542 IPPROTO_SCTP, fields);
543 break;
544 default:
545 return -EOPNOTSUPP;
546 }
547
548 if (err)
549 return err;
550
551 if (fs->flow_type & FLOW_EXT) {
552 err = dpaa2_eth_prep_ext_rule(ext_value: &fs->h_ext, ext_mask: &fs->m_ext, key, mask, fields);
553 if (err)
554 return err;
555 }
556
557 if (fs->flow_type & FLOW_MAC_EXT) {
558 err = dpaa2_eth_prep_mac_ext_rule(ext_value: &fs->h_ext, ext_mask: &fs->m_ext, key,
559 mask, fields);
560 if (err)
561 return err;
562 }
563
564 return 0;
565}
566
567static int dpaa2_eth_do_cls_rule(struct net_device *net_dev,
568 struct ethtool_rx_flow_spec *fs,
569 bool add)
570{
571 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
572 struct device *dev = net_dev->dev.parent;
573 struct dpni_rule_cfg rule_cfg = { 0 };
574 struct dpni_fs_action_cfg fs_act = { 0 };
575 dma_addr_t key_iova;
576 u64 fields = 0;
577 void *key_buf;
578 int i, err;
579
580 if (fs->ring_cookie != RX_CLS_FLOW_DISC &&
581 fs->ring_cookie >= dpaa2_eth_queue_count(priv))
582 return -EINVAL;
583
584 rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL);
585
586 /* allocate twice the key size, for the actual key and for mask */
587 key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL);
588 if (!key_buf)
589 return -ENOMEM;
590
591 /* Fill the key and mask memory areas */
592 err = dpaa2_eth_prep_cls_rule(fs, key: key_buf, mask: key_buf + rule_cfg.key_size, fields: &fields);
593 if (err)
594 goto free_mem;
595
596 if (!dpaa2_eth_fs_mask_enabled(priv)) {
597 /* Masking allows us to configure a maximal key during init and
598 * use it for all flow steering rules. Without it, we include
599 * in the key only the fields actually used, so we need to
600 * extract the others from the final key buffer.
601 *
602 * Program the FS key if needed, or return error if previously
603 * set key can't be used for the current rule. User needs to
604 * delete existing rules in this case to allow for the new one.
605 */
606 if (!priv->rx_cls_fields) {
607 err = dpaa2_eth_set_cls(net_dev, key: fields);
608 if (err)
609 goto free_mem;
610
611 priv->rx_cls_fields = fields;
612 } else if (priv->rx_cls_fields != fields) {
613 netdev_err(dev: net_dev, format: "No support for multiple FS keys, need to delete existing rules\n");
614 err = -EOPNOTSUPP;
615 goto free_mem;
616 }
617
618 dpaa2_eth_cls_trim_rule(key_mem: key_buf, fields);
619 rule_cfg.key_size = dpaa2_eth_cls_key_size(key: fields);
620 }
621
622 key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2,
623 DMA_TO_DEVICE);
624 if (dma_mapping_error(dev, dma_addr: key_iova)) {
625 err = -ENOMEM;
626 goto free_mem;
627 }
628
629 rule_cfg.key_iova = key_iova;
630 if (dpaa2_eth_fs_mask_enabled(priv))
631 rule_cfg.mask_iova = key_iova + rule_cfg.key_size;
632
633 if (add) {
634 if (fs->ring_cookie == RX_CLS_FLOW_DISC)
635 fs_act.options |= DPNI_FS_OPT_DISCARD;
636 else
637 fs_act.flow_id = fs->ring_cookie;
638 }
639 for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
640 if (add)
641 err = dpni_add_fs_entry(mc_io: priv->mc_io, cmd_flags: 0, token: priv->mc_token,
642 tc_id: i, index: fs->location, cfg: &rule_cfg,
643 action: &fs_act);
644 else
645 err = dpni_remove_fs_entry(mc_io: priv->mc_io, cmd_flags: 0,
646 token: priv->mc_token, tc_id: i,
647 cfg: &rule_cfg);
648 if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS)
649 break;
650 }
651
652 dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE);
653
654free_mem:
655 kfree(objp: key_buf);
656
657 return err;
658}
659
660static int dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv *priv)
661{
662 int i, rules = 0;
663
664 for (i = 0; i < dpaa2_eth_fs_count(priv); i++)
665 if (priv->cls_rules[i].in_use)
666 rules++;
667
668 return rules;
669}
670
671static int dpaa2_eth_update_cls_rule(struct net_device *net_dev,
672 struct ethtool_rx_flow_spec *new_fs,
673 unsigned int location)
674{
675 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
676 struct dpaa2_eth_cls_rule *rule;
677 int err = -EINVAL;
678
679 if (!priv->rx_cls_enabled)
680 return -EOPNOTSUPP;
681
682 if (location >= dpaa2_eth_fs_count(priv))
683 return -EINVAL;
684
685 rule = &priv->cls_rules[location];
686
687 /* If a rule is present at the specified location, delete it. */
688 if (rule->in_use) {
689 err = dpaa2_eth_do_cls_rule(net_dev, fs: &rule->fs, add: false);
690 if (err)
691 return err;
692
693 rule->in_use = 0;
694
695 if (!dpaa2_eth_fs_mask_enabled(priv) &&
696 !dpaa2_eth_num_cls_rules(priv))
697 priv->rx_cls_fields = 0;
698 }
699
700 /* If no new entry to add, return here */
701 if (!new_fs)
702 return err;
703
704 err = dpaa2_eth_do_cls_rule(net_dev, fs: new_fs, add: true);
705 if (err)
706 return err;
707
708 rule->in_use = 1;
709 rule->fs = *new_fs;
710
711 return 0;
712}
713
714static int dpaa2_eth_get_rxnfc(struct net_device *net_dev,
715 struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
716{
717 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
718 int max_rules = dpaa2_eth_fs_count(priv);
719 int i, j = 0;
720
721 switch (rxnfc->cmd) {
722 case ETHTOOL_GRXFH:
723 /* we purposely ignore cmd->flow_type for now, because the
724 * classifier only supports a single set of fields for all
725 * protocols
726 */
727 rxnfc->data = priv->rx_hash_fields;
728 break;
729 case ETHTOOL_GRXRINGS:
730 rxnfc->data = dpaa2_eth_queue_count(priv);
731 break;
732 case ETHTOOL_GRXCLSRLCNT:
733 rxnfc->rule_cnt = 0;
734 rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv);
735 rxnfc->data = max_rules;
736 break;
737 case ETHTOOL_GRXCLSRULE:
738 if (rxnfc->fs.location >= max_rules)
739 return -EINVAL;
740 rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
741 max_rules);
742 if (!priv->cls_rules[rxnfc->fs.location].in_use)
743 return -EINVAL;
744 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
745 break;
746 case ETHTOOL_GRXCLSRLALL:
747 for (i = 0; i < max_rules; i++) {
748 if (!priv->cls_rules[i].in_use)
749 continue;
750 if (j == rxnfc->rule_cnt)
751 return -EMSGSIZE;
752 rule_locs[j++] = i;
753 }
754 rxnfc->rule_cnt = j;
755 rxnfc->data = max_rules;
756 break;
757 default:
758 return -EOPNOTSUPP;
759 }
760
761 return 0;
762}
763
764static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
765 struct ethtool_rxnfc *rxnfc)
766{
767 int err = 0;
768
769 switch (rxnfc->cmd) {
770 case ETHTOOL_SRXFH:
771 if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data)
772 return -EOPNOTSUPP;
773 err = dpaa2_eth_set_hash(net_dev, flags: rxnfc->data);
774 break;
775 case ETHTOOL_SRXCLSRLINS:
776 err = dpaa2_eth_update_cls_rule(net_dev, new_fs: &rxnfc->fs, location: rxnfc->fs.location);
777 break;
778 case ETHTOOL_SRXCLSRLDEL:
779 err = dpaa2_eth_update_cls_rule(net_dev, NULL, location: rxnfc->fs.location);
780 break;
781 default:
782 err = -EOPNOTSUPP;
783 }
784
785 return err;
786}
787
788int dpaa2_phc_index = -1;
789EXPORT_SYMBOL(dpaa2_phc_index);
790
791static int dpaa2_eth_get_ts_info(struct net_device *dev,
792 struct kernel_ethtool_ts_info *info)
793{
794 if (!dpaa2_ptp)
795 return ethtool_op_get_ts_info(dev, eti: info);
796
797 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
798 SOF_TIMESTAMPING_RX_HARDWARE |
799 SOF_TIMESTAMPING_RAW_HARDWARE;
800
801 info->phc_index = dpaa2_phc_index;
802
803 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
804 (1 << HWTSTAMP_TX_ON) |
805 (1 << HWTSTAMP_TX_ONESTEP_SYNC);
806
807 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
808 (1 << HWTSTAMP_FILTER_ALL);
809 return 0;
810}
811
812static int dpaa2_eth_get_tunable(struct net_device *net_dev,
813 const struct ethtool_tunable *tuna,
814 void *data)
815{
816 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
817 int err = 0;
818
819 switch (tuna->id) {
820 case ETHTOOL_RX_COPYBREAK:
821 *(u32 *)data = priv->rx_copybreak;
822 break;
823 default:
824 err = -EOPNOTSUPP;
825 break;
826 }
827
828 return err;
829}
830
831static int dpaa2_eth_set_tunable(struct net_device *net_dev,
832 const struct ethtool_tunable *tuna,
833 const void *data)
834{
835 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
836 int err = 0;
837
838 switch (tuna->id) {
839 case ETHTOOL_RX_COPYBREAK:
840 priv->rx_copybreak = *(u32 *)data;
841 break;
842 default:
843 err = -EOPNOTSUPP;
844 break;
845 }
846
847 return err;
848}
849
850static int dpaa2_eth_get_coalesce(struct net_device *dev,
851 struct ethtool_coalesce *ic,
852 struct kernel_ethtool_coalesce *kernel_coal,
853 struct netlink_ext_ack *extack)
854{
855 struct dpaa2_eth_priv *priv = netdev_priv(dev);
856 struct dpaa2_io *dpio = priv->channel[0]->dpio;
857
858 dpaa2_io_get_irq_coalescing(d: dpio, irq_holdoff: &ic->rx_coalesce_usecs);
859 ic->use_adaptive_rx_coalesce = dpaa2_io_get_adaptive_coalescing(d: dpio);
860
861 return 0;
862}
863
864static int dpaa2_eth_set_coalesce(struct net_device *dev,
865 struct ethtool_coalesce *ic,
866 struct kernel_ethtool_coalesce *kernel_coal,
867 struct netlink_ext_ack *extack)
868{
869 struct dpaa2_eth_priv *priv = netdev_priv(dev);
870 struct dpaa2_io *dpio;
871 int prev_adaptive;
872 u32 prev_rx_usecs;
873 int i, j, err;
874
875 /* Keep track of the previous value, just in case we fail */
876 dpio = priv->channel[0]->dpio;
877 dpaa2_io_get_irq_coalescing(d: dpio, irq_holdoff: &prev_rx_usecs);
878 prev_adaptive = dpaa2_io_get_adaptive_coalescing(d: dpio);
879
880 /* Setup new value for rx coalescing */
881 for (i = 0; i < priv->num_channels; i++) {
882 dpio = priv->channel[i]->dpio;
883
884 dpaa2_io_set_adaptive_coalescing(d: dpio,
885 use_adaptive_rx_coalesce: ic->use_adaptive_rx_coalesce);
886 err = dpaa2_io_set_irq_coalescing(d: dpio, irq_holdoff: ic->rx_coalesce_usecs);
887 if (err)
888 goto restore_rx_usecs;
889 }
890
891 return 0;
892
893restore_rx_usecs:
894 for (j = 0; j < i; j++) {
895 dpio = priv->channel[j]->dpio;
896
897 dpaa2_io_set_irq_coalescing(d: dpio, irq_holdoff: prev_rx_usecs);
898 dpaa2_io_set_adaptive_coalescing(d: dpio, use_adaptive_rx_coalesce: prev_adaptive);
899 }
900
901 return err;
902}
903
904static void dpaa2_eth_get_channels(struct net_device *net_dev,
905 struct ethtool_channels *channels)
906{
907 struct dpaa2_eth_priv *priv = netdev_priv(dev: net_dev);
908 int queue_count = dpaa2_eth_queue_count(priv);
909
910 channels->max_rx = queue_count;
911 channels->max_tx = queue_count;
912 channels->rx_count = queue_count;
913 channels->tx_count = queue_count;
914
915 /* Tx confirmation and Rx error */
916 channels->max_other = queue_count + 1;
917 channels->max_combined = channels->max_rx +
918 channels->max_tx +
919 channels->max_other;
920 /* Tx conf and Rx err */
921 channels->other_count = queue_count + 1;
922 channels->combined_count = channels->rx_count +
923 channels->tx_count +
924 channels->other_count;
925}
926
927const struct ethtool_ops dpaa2_ethtool_ops = {
928 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
929 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
930 .get_drvinfo = dpaa2_eth_get_drvinfo,
931 .nway_reset = dpaa2_eth_nway_reset,
932 .get_link = ethtool_op_get_link,
933 .get_link_ksettings = dpaa2_eth_get_link_ksettings,
934 .set_link_ksettings = dpaa2_eth_set_link_ksettings,
935 .get_pauseparam = dpaa2_eth_get_pauseparam,
936 .set_pauseparam = dpaa2_eth_set_pauseparam,
937 .get_sset_count = dpaa2_eth_get_sset_count,
938 .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
939 .get_strings = dpaa2_eth_get_strings,
940 .get_rxnfc = dpaa2_eth_get_rxnfc,
941 .set_rxnfc = dpaa2_eth_set_rxnfc,
942 .get_ts_info = dpaa2_eth_get_ts_info,
943 .get_tunable = dpaa2_eth_get_tunable,
944 .set_tunable = dpaa2_eth_set_tunable,
945 .get_coalesce = dpaa2_eth_get_coalesce,
946 .set_coalesce = dpaa2_eth_set_coalesce,
947 .get_channels = dpaa2_eth_get_channels,
948};
949

source code of linux/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c