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 */
13 static 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
40 static 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
dpaa2_eth_get_drvinfo(struct net_device * net_dev,struct ethtool_drvinfo * drvinfo)71 static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
72 struct ethtool_drvinfo *drvinfo)
73 {
74 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
75
76 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
77
78 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
79 "%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
dpaa2_eth_nway_reset(struct net_device * net_dev)85 static int dpaa2_eth_nway_reset(struct net_device *net_dev)
86 {
87 struct dpaa2_eth_priv *priv = netdev_priv(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(&priv->mac_lock);
96
97 return err;
98 }
99
100 static int
dpaa2_eth_get_link_ksettings(struct net_device * net_dev,struct ethtool_link_ksettings * link_settings)101 dpaa2_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(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(&priv->mac_lock);
113 return err;
114 }
115
116 mutex_unlock(&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
126 static int
dpaa2_eth_set_link_ksettings(struct net_device * net_dev,const struct ethtool_link_ksettings * link_settings)127 dpaa2_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(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(&priv->mac_lock);
140
141 return err;
142 }
143
dpaa2_eth_get_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)144 static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
145 struct ethtool_pauseparam *pause)
146 {
147 struct dpaa2_eth_priv *priv = netdev_priv(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(&priv->mac_lock);
155 return;
156 }
157
158 mutex_unlock(&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
dpaa2_eth_set_pauseparam(struct net_device * net_dev,struct ethtool_pauseparam * pause)165 static int dpaa2_eth_set_pauseparam(struct net_device *net_dev,
166 struct ethtool_pauseparam *pause)
167 {
168 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
169 struct dpni_link_cfg cfg = {0};
170 int err;
171
172 if (!dpaa2_eth_has_pause_support(priv)) {
173 netdev_info(net_dev, "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(&priv->mac_lock);
184 return err;
185 }
186
187 mutex_unlock(&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(priv->mc_io, 0, priv->mc_token, &cfg);
207 if (err) {
208 netdev_err(net_dev, "dpni_set_link_state failed\n");
209 return err;
210 }
211
212 priv->link_state.options = cfg.options;
213
214 return 0;
215 }
216
dpaa2_eth_get_strings(struct net_device * netdev,u32 stringset,u8 * data)217 static 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, dpaa2_ethtool_stats[i]);
226 for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++)
227 ethtool_puts(&data, dpaa2_ethtool_extras[i]);
228 dpaa2_mac_get_strings(&data);
229 break;
230 }
231 }
232
dpaa2_eth_get_sset_count(struct net_device * net_dev,int sset)233 static 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 */
dpaa2_eth_get_ethtool_stats(struct net_device * net_dev,struct ethtool_stats * stats,u64 * data)246 static 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(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(priv->mc_io, 0, priv->mc_token,
278 j, &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(net_dev, "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, priv->fq[j].fqid,
309 &fcnt, &bcnt);
310 if (err) {
311 netdev_warn(net_dev, "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, priv->bp[j]->bpid, &buf_cnt);
331 if (err) {
332 netdev_warn(net_dev, "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(priv->mac, data + i);
343
344 mutex_unlock(&priv->mac_lock);
345 }
346
dpaa2_eth_prep_eth_rule(struct ethhdr * eth_value,struct ethhdr * eth_mask,void * key,void * mask,u64 * fields)347 static 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(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(eth_mask->h_source)) {
360 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA);
361 ether_addr_copy(key + off, eth_value->h_source);
362 ether_addr_copy(mask + off, eth_mask->h_source);
363 *fields |= DPAA2_ETH_DIST_ETHSRC;
364 }
365
366 if (!is_zero_ether_addr(eth_mask->h_dest)) {
367 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
368 ether_addr_copy(key + off, eth_value->h_dest);
369 ether_addr_copy(mask + off, eth_mask->h_dest);
370 *fields |= DPAA2_ETH_DIST_ETHDST;
371 }
372
373 return 0;
374 }
375
dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec * uip_value,struct ethtool_usrip4_spec * uip_mask,void * key,void * mask,u64 * fields)376 static 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(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(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(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(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(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(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
dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec * l4_value,struct ethtool_tcpip4_spec * l4_mask,void * key,void * mask,u8 l4_proto,u64 * fields)431 static 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(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(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(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(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(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(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
dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext * ext_value,struct ethtool_flow_ext * ext_mask,void * key,void * mask,u64 * fields)482 static 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(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
dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext * ext_value,struct ethtool_flow_ext * ext_mask,void * key,void * mask,u64 * fields)501 static 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(ext_mask->h_dest)) {
508 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA);
509 ether_addr_copy(key + off, ext_value->h_dest);
510 ether_addr_copy(mask + off, ext_mask->h_dest);
511 *fields |= DPAA2_ETH_DIST_ETHDST;
512 }
513
514 return 0;
515 }
516
dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec * fs,void * key,void * mask,u64 * fields)517 static 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(&fs->h_u.ether_spec, &fs->m_u.ether_spec,
525 key, mask, fields);
526 break;
527 case IP_USER_FLOW:
528 err = dpaa2_eth_prep_uip_rule(&fs->h_u.usr_ip4_spec,
529 &fs->m_u.usr_ip4_spec, key, mask, fields);
530 break;
531 case TCP_V4_FLOW:
532 err = dpaa2_eth_prep_l4_rule(&fs->h_u.tcp_ip4_spec, &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(&fs->h_u.udp_ip4_spec, &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(&fs->h_u.sctp_ip4_spec,
541 &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(&fs->h_ext, &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(&fs->h_ext, &fs->m_ext, key,
559 mask, fields);
560 if (err)
561 return err;
562 }
563
564 return 0;
565 }
566
dpaa2_eth_do_cls_rule(struct net_device * net_dev,struct ethtool_rx_flow_spec * fs,bool add)567 static 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(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_buf, key_buf + rule_cfg.key_size, &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, 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(net_dev, "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_buf, fields);
619 rule_cfg.key_size = dpaa2_eth_cls_key_size(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, 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(priv->mc_io, 0, priv->mc_token,
642 i, fs->location, &rule_cfg,
643 &fs_act);
644 else
645 err = dpni_remove_fs_entry(priv->mc_io, 0,
646 priv->mc_token, i,
647 &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
654 free_mem:
655 kfree(key_buf);
656
657 return err;
658 }
659
dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv * priv)660 static 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
dpaa2_eth_update_cls_rule(struct net_device * net_dev,struct ethtool_rx_flow_spec * new_fs,unsigned int location)671 static 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(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, &rule->fs, 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, new_fs, true);
705 if (err)
706 return err;
707
708 rule->in_use = 1;
709 rule->fs = *new_fs;
710
711 return 0;
712 }
713
dpaa2_eth_get_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * rxnfc,u32 * rule_locs)714 static 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(net_dev);
718 int max_rules = dpaa2_eth_fs_count(priv);
719 int i, j = 0;
720
721 switch (rxnfc->cmd) {
722 case ETHTOOL_GRXRINGS:
723 rxnfc->data = dpaa2_eth_queue_count(priv);
724 break;
725 case ETHTOOL_GRXCLSRLCNT:
726 rxnfc->rule_cnt = 0;
727 rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv);
728 rxnfc->data = max_rules;
729 break;
730 case ETHTOOL_GRXCLSRULE:
731 if (rxnfc->fs.location >= max_rules)
732 return -EINVAL;
733 rxnfc->fs.location = array_index_nospec(rxnfc->fs.location,
734 max_rules);
735 if (!priv->cls_rules[rxnfc->fs.location].in_use)
736 return -EINVAL;
737 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs;
738 break;
739 case ETHTOOL_GRXCLSRLALL:
740 for (i = 0; i < max_rules; i++) {
741 if (!priv->cls_rules[i].in_use)
742 continue;
743 if (j == rxnfc->rule_cnt)
744 return -EMSGSIZE;
745 rule_locs[j++] = i;
746 }
747 rxnfc->rule_cnt = j;
748 rxnfc->data = max_rules;
749 break;
750 default:
751 return -EOPNOTSUPP;
752 }
753
754 return 0;
755 }
756
dpaa2_eth_set_rxnfc(struct net_device * net_dev,struct ethtool_rxnfc * rxnfc)757 static int dpaa2_eth_set_rxnfc(struct net_device *net_dev,
758 struct ethtool_rxnfc *rxnfc)
759 {
760 int err = 0;
761
762 switch (rxnfc->cmd) {
763 case ETHTOOL_SRXCLSRLINS:
764 err = dpaa2_eth_update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location);
765 break;
766 case ETHTOOL_SRXCLSRLDEL:
767 err = dpaa2_eth_update_cls_rule(net_dev, NULL, rxnfc->fs.location);
768 break;
769 default:
770 err = -EOPNOTSUPP;
771 }
772
773 return err;
774 }
775
dpaa2_eth_get_rxfh_fields(struct net_device * net_dev,struct ethtool_rxfh_fields * rxnfc)776 static int dpaa2_eth_get_rxfh_fields(struct net_device *net_dev,
777 struct ethtool_rxfh_fields *rxnfc)
778 {
779 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
780
781 /* we purposely ignore cmd->flow_type for now, because the
782 * classifier only supports a single set of fields for all
783 * protocols
784 */
785 rxnfc->data = priv->rx_hash_fields;
786 return 0;
787 }
788
dpaa2_eth_set_rxfh_fields(struct net_device * net_dev,const struct ethtool_rxfh_fields * rxnfc,struct netlink_ext_ack * extack)789 static int dpaa2_eth_set_rxfh_fields(struct net_device *net_dev,
790 const struct ethtool_rxfh_fields *rxnfc,
791 struct netlink_ext_ack *extack)
792 {
793 if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data)
794 return -EOPNOTSUPP;
795 return dpaa2_eth_set_hash(net_dev, rxnfc->data);
796 }
797
798 int dpaa2_phc_index = -1;
799 EXPORT_SYMBOL(dpaa2_phc_index);
800
dpaa2_eth_get_ts_info(struct net_device * dev,struct kernel_ethtool_ts_info * info)801 static int dpaa2_eth_get_ts_info(struct net_device *dev,
802 struct kernel_ethtool_ts_info *info)
803 {
804 if (!dpaa2_ptp)
805 return ethtool_op_get_ts_info(dev, info);
806
807 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
808 SOF_TIMESTAMPING_RX_HARDWARE |
809 SOF_TIMESTAMPING_RAW_HARDWARE;
810
811 info->phc_index = dpaa2_phc_index;
812
813 info->tx_types = (1 << HWTSTAMP_TX_OFF) |
814 (1 << HWTSTAMP_TX_ON) |
815 (1 << HWTSTAMP_TX_ONESTEP_SYNC);
816
817 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
818 (1 << HWTSTAMP_FILTER_ALL);
819 return 0;
820 }
821
dpaa2_eth_get_tunable(struct net_device * net_dev,const struct ethtool_tunable * tuna,void * data)822 static int dpaa2_eth_get_tunable(struct net_device *net_dev,
823 const struct ethtool_tunable *tuna,
824 void *data)
825 {
826 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
827 int err = 0;
828
829 switch (tuna->id) {
830 case ETHTOOL_RX_COPYBREAK:
831 *(u32 *)data = priv->rx_copybreak;
832 break;
833 default:
834 err = -EOPNOTSUPP;
835 break;
836 }
837
838 return err;
839 }
840
dpaa2_eth_set_tunable(struct net_device * net_dev,const struct ethtool_tunable * tuna,const void * data)841 static int dpaa2_eth_set_tunable(struct net_device *net_dev,
842 const struct ethtool_tunable *tuna,
843 const void *data)
844 {
845 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
846 int err = 0;
847
848 switch (tuna->id) {
849 case ETHTOOL_RX_COPYBREAK:
850 priv->rx_copybreak = *(u32 *)data;
851 break;
852 default:
853 err = -EOPNOTSUPP;
854 break;
855 }
856
857 return err;
858 }
859
dpaa2_eth_get_coalesce(struct net_device * dev,struct ethtool_coalesce * ic,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)860 static int dpaa2_eth_get_coalesce(struct net_device *dev,
861 struct ethtool_coalesce *ic,
862 struct kernel_ethtool_coalesce *kernel_coal,
863 struct netlink_ext_ack *extack)
864 {
865 struct dpaa2_eth_priv *priv = netdev_priv(dev);
866 struct dpaa2_io *dpio = priv->channel[0]->dpio;
867
868 dpaa2_io_get_irq_coalescing(dpio, &ic->rx_coalesce_usecs);
869 ic->use_adaptive_rx_coalesce = dpaa2_io_get_adaptive_coalescing(dpio);
870
871 return 0;
872 }
873
dpaa2_eth_set_coalesce(struct net_device * dev,struct ethtool_coalesce * ic,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)874 static int dpaa2_eth_set_coalesce(struct net_device *dev,
875 struct ethtool_coalesce *ic,
876 struct kernel_ethtool_coalesce *kernel_coal,
877 struct netlink_ext_ack *extack)
878 {
879 struct dpaa2_eth_priv *priv = netdev_priv(dev);
880 struct dpaa2_io *dpio;
881 int prev_adaptive;
882 u32 prev_rx_usecs;
883 int i, j, err;
884
885 /* Keep track of the previous value, just in case we fail */
886 dpio = priv->channel[0]->dpio;
887 dpaa2_io_get_irq_coalescing(dpio, &prev_rx_usecs);
888 prev_adaptive = dpaa2_io_get_adaptive_coalescing(dpio);
889
890 /* Setup new value for rx coalescing */
891 for (i = 0; i < priv->num_channels; i++) {
892 dpio = priv->channel[i]->dpio;
893
894 dpaa2_io_set_adaptive_coalescing(dpio,
895 ic->use_adaptive_rx_coalesce);
896 err = dpaa2_io_set_irq_coalescing(dpio, ic->rx_coalesce_usecs);
897 if (err)
898 goto restore_rx_usecs;
899 }
900
901 return 0;
902
903 restore_rx_usecs:
904 for (j = 0; j < i; j++) {
905 dpio = priv->channel[j]->dpio;
906
907 dpaa2_io_set_irq_coalescing(dpio, prev_rx_usecs);
908 dpaa2_io_set_adaptive_coalescing(dpio, prev_adaptive);
909 }
910
911 return err;
912 }
913
dpaa2_eth_get_channels(struct net_device * net_dev,struct ethtool_channels * channels)914 static void dpaa2_eth_get_channels(struct net_device *net_dev,
915 struct ethtool_channels *channels)
916 {
917 struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
918 int queue_count = dpaa2_eth_queue_count(priv);
919
920 channels->max_rx = queue_count;
921 channels->max_tx = queue_count;
922 channels->rx_count = queue_count;
923 channels->tx_count = queue_count;
924
925 /* Tx confirmation and Rx error */
926 channels->max_other = queue_count + 1;
927 channels->max_combined = channels->max_rx +
928 channels->max_tx +
929 channels->max_other;
930 /* Tx conf and Rx err */
931 channels->other_count = queue_count + 1;
932 channels->combined_count = channels->rx_count +
933 channels->tx_count +
934 channels->other_count;
935 }
936
937 const struct ethtool_ops dpaa2_ethtool_ops = {
938 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
939 ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
940 .get_drvinfo = dpaa2_eth_get_drvinfo,
941 .nway_reset = dpaa2_eth_nway_reset,
942 .get_link = ethtool_op_get_link,
943 .get_link_ksettings = dpaa2_eth_get_link_ksettings,
944 .set_link_ksettings = dpaa2_eth_set_link_ksettings,
945 .get_pauseparam = dpaa2_eth_get_pauseparam,
946 .set_pauseparam = dpaa2_eth_set_pauseparam,
947 .get_sset_count = dpaa2_eth_get_sset_count,
948 .get_ethtool_stats = dpaa2_eth_get_ethtool_stats,
949 .get_strings = dpaa2_eth_get_strings,
950 .get_rxnfc = dpaa2_eth_get_rxnfc,
951 .set_rxnfc = dpaa2_eth_set_rxnfc,
952 .get_rxfh_fields = dpaa2_eth_get_rxfh_fields,
953 .set_rxfh_fields = dpaa2_eth_set_rxfh_fields,
954 .get_ts_info = dpaa2_eth_get_ts_info,
955 .get_tunable = dpaa2_eth_get_tunable,
956 .set_tunable = dpaa2_eth_set_tunable,
957 .get_coalesce = dpaa2_eth_get_coalesce,
958 .set_coalesce = dpaa2_eth_set_coalesce,
959 .get_channels = dpaa2_eth_get_channels,
960 };
961