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1 | /* | |
2 | * Copyright (c) 2016~2017 Hisilicon Limited. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | */ | |
9 | ||
10 | #include <linux/etherdevice.h> | |
11 | #include <linux/string.h> | |
12 | ||
13 | #include "hns3_enet.h" | |
14 | ||
15 | struct hns3_stats { | |
16 | char stats_string[ETH_GSTRING_LEN]; | |
17 | int stats_size; | |
18 | int stats_offset; | |
19 | }; | |
20 | ||
21 | /* tqp related stats */ | |
22 | #define HNS3_TQP_STAT(_string, _member) { \ | |
23 | .stats_string = _string, \ | |
24 | .stats_size = FIELD_SIZEOF(struct ring_stats, _member), \ | |
25 | .stats_offset = offsetof(struct hns3_enet_ring, stats), \ | |
26 | } \ | |
27 | ||
28 | static const struct hns3_stats hns3_txq_stats[] = { | |
29 | /* Tx per-queue statistics */ | |
30 | HNS3_TQP_STAT("tx_io_err_cnt", io_err_cnt), | |
31 | HNS3_TQP_STAT("tx_sw_err_cnt", sw_err_cnt), | |
32 | HNS3_TQP_STAT("tx_seg_pkt_cnt", seg_pkt_cnt), | |
33 | HNS3_TQP_STAT("tx_pkts", tx_pkts), | |
34 | HNS3_TQP_STAT("tx_bytes", tx_bytes), | |
35 | HNS3_TQP_STAT("tx_err_cnt", tx_err_cnt), | |
36 | HNS3_TQP_STAT("tx_restart_queue", restart_queue), | |
37 | HNS3_TQP_STAT("tx_busy", tx_busy), | |
38 | }; | |
39 | ||
40 | #define HNS3_TXQ_STATS_COUNT ARRAY_SIZE(hns3_txq_stats) | |
41 | ||
42 | static const struct hns3_stats hns3_rxq_stats[] = { | |
43 | /* Rx per-queue statistics */ | |
44 | HNS3_TQP_STAT("rx_io_err_cnt", io_err_cnt), | |
45 | HNS3_TQP_STAT("rx_sw_err_cnt", sw_err_cnt), | |
46 | HNS3_TQP_STAT("rx_seg_pkt_cnt", seg_pkt_cnt), | |
47 | HNS3_TQP_STAT("rx_pkts", rx_pkts), | |
48 | HNS3_TQP_STAT("rx_bytes", rx_bytes), | |
49 | HNS3_TQP_STAT("rx_err_cnt", rx_err_cnt), | |
50 | HNS3_TQP_STAT("rx_reuse_pg_cnt", reuse_pg_cnt), | |
51 | HNS3_TQP_STAT("rx_err_pkt_len", err_pkt_len), | |
52 | HNS3_TQP_STAT("rx_non_vld_descs", non_vld_descs), | |
53 | HNS3_TQP_STAT("rx_err_bd_num", err_bd_num), | |
54 | HNS3_TQP_STAT("rx_l2_err", l2_err), | |
55 | HNS3_TQP_STAT("rx_l3l4_csum_err", l3l4_csum_err), | |
56 | }; | |
57 | ||
58 | #define HNS3_RXQ_STATS_COUNT ARRAY_SIZE(hns3_rxq_stats) | |
59 | ||
60 | #define HNS3_TQP_STATS_COUNT (HNS3_TXQ_STATS_COUNT + HNS3_RXQ_STATS_COUNT) | |
61 | ||
62 | struct hns3_link_mode_mapping { | |
63 | u32 hns3_link_mode; | |
64 | u32 ethtool_link_mode; | |
65 | }; | |
66 | ||
67 | static const struct hns3_link_mode_mapping hns3_lm_map[] = { | |
68 | {HNS3_LM_FIBRE_BIT, ETHTOOL_LINK_MODE_FIBRE_BIT}, | |
69 | {HNS3_LM_AUTONEG_BIT, ETHTOOL_LINK_MODE_Autoneg_BIT}, | |
70 | {HNS3_LM_TP_BIT, ETHTOOL_LINK_MODE_TP_BIT}, | |
71 | {HNS3_LM_PAUSE_BIT, ETHTOOL_LINK_MODE_Pause_BIT}, | |
72 | {HNS3_LM_BACKPLANE_BIT, ETHTOOL_LINK_MODE_Backplane_BIT}, | |
73 | {HNS3_LM_10BASET_HALF_BIT, ETHTOOL_LINK_MODE_10baseT_Half_BIT}, | |
74 | {HNS3_LM_10BASET_FULL_BIT, ETHTOOL_LINK_MODE_10baseT_Full_BIT}, | |
75 | {HNS3_LM_100BASET_HALF_BIT, ETHTOOL_LINK_MODE_100baseT_Half_BIT}, | |
76 | {HNS3_LM_100BASET_FULL_BIT, ETHTOOL_LINK_MODE_100baseT_Full_BIT}, | |
77 | {HNS3_LM_1000BASET_FULL_BIT, ETHTOOL_LINK_MODE_1000baseT_Full_BIT}, | |
78 | }; | |
79 | ||
80 | static void hns3_driv_to_eth_caps(u32 caps, struct ethtool_link_ksettings *cmd, | |
81 | bool is_advertised) | |
82 | { | |
83 | int i; | |
84 | ||
85 | for (i = 0; i < ARRAY_SIZE(hns3_lm_map); i++) { | |
86 | if (!(caps & hns3_lm_map[i].hns3_link_mode)) | |
87 | continue; | |
88 | ||
89 | if (is_advertised) { | |
90 | ethtool_link_ksettings_zero_link_mode(cmd, | |
91 | advertising); | |
92 | __set_bit(hns3_lm_map[i].ethtool_link_mode, | |
93 | cmd->link_modes.advertising); | |
94 | } else { | |
95 | ethtool_link_ksettings_zero_link_mode(cmd, | |
96 | supported); | |
97 | __set_bit(hns3_lm_map[i].ethtool_link_mode, | |
98 | cmd->link_modes.supported); | |
99 | } | |
100 | } | |
101 | } | |
102 | ||
103 | static int hns3_get_sset_count(struct net_device *netdev, int stringset) | |
104 | { | |
105 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
106 | const struct hnae3_ae_ops *ops = h->ae_algo->ops; | |
107 | ||
108 | if (!ops->get_sset_count) | |
109 | return -EOPNOTSUPP; | |
110 | ||
111 | switch (stringset) { | |
112 | case ETH_SS_STATS: | |
113 | return ((HNS3_TQP_STATS_COUNT * h->kinfo.num_tqps) + | |
114 | ops->get_sset_count(h, stringset)); | |
115 | ||
116 | case ETH_SS_TEST: | |
117 | return ops->get_sset_count(h, stringset); | |
118 | } | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | static void *hns3_update_strings(u8 *data, const struct hns3_stats *stats, | |
124 | u32 stat_count, u32 num_tqps) | |
125 | { | |
126 | #define MAX_PREFIX_SIZE (8 + 4) | |
127 | u32 size_left; | |
128 | u32 i, j; | |
129 | u32 n1; | |
130 | ||
131 | for (i = 0; i < num_tqps; i++) { | |
132 | for (j = 0; j < stat_count; j++) { | |
133 | data[ETH_GSTRING_LEN - 1] = '\0'; | |
134 | ||
135 | /* first, prepend the prefix string */ | |
136 | n1 = snprintf(data, MAX_PREFIX_SIZE, "rcb_q%d_", i); | |
137 | n1 = min_t(uint, n1, MAX_PREFIX_SIZE - 1); | |
138 | size_left = (ETH_GSTRING_LEN - 1) - n1; | |
139 | ||
140 | /* now, concatenate the stats string to it */ | |
141 | strncat(data, stats[j].stats_string, size_left); | |
142 | data += ETH_GSTRING_LEN; | |
143 | } | |
144 | } | |
145 | ||
146 | return data; | |
147 | } | |
148 | ||
149 | static u8 *hns3_get_strings_tqps(struct hnae3_handle *handle, u8 *data) | |
150 | { | |
151 | struct hnae3_knic_private_info *kinfo = &handle->kinfo; | |
152 | ||
153 | /* get strings for Tx */ | |
154 | data = hns3_update_strings(data, hns3_txq_stats, HNS3_TXQ_STATS_COUNT, | |
155 | kinfo->num_tqps); | |
156 | ||
157 | /* get strings for Rx */ | |
158 | data = hns3_update_strings(data, hns3_rxq_stats, HNS3_RXQ_STATS_COUNT, | |
159 | kinfo->num_tqps); | |
160 | ||
161 | return data; | |
162 | } | |
163 | ||
164 | static void hns3_get_strings(struct net_device *netdev, u32 stringset, u8 *data) | |
165 | { | |
166 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
167 | const struct hnae3_ae_ops *ops = h->ae_algo->ops; | |
168 | char *buff = (char *)data; | |
169 | ||
170 | if (!ops->get_strings) | |
171 | return; | |
172 | ||
173 | switch (stringset) { | |
174 | case ETH_SS_STATS: | |
175 | buff = hns3_get_strings_tqps(h, buff); | |
176 | h->ae_algo->ops->get_strings(h, stringset, (u8 *)buff); | |
177 | break; | |
178 | case ETH_SS_TEST: | |
179 | ops->get_strings(h, stringset, data); | |
180 | break; | |
181 | } | |
182 | } | |
183 | ||
184 | static u64 *hns3_get_stats_tqps(struct hnae3_handle *handle, u64 *data) | |
185 | { | |
186 | struct hns3_nic_priv *nic_priv = (struct hns3_nic_priv *)handle->priv; | |
187 | struct hnae3_knic_private_info *kinfo = &handle->kinfo; | |
188 | struct hns3_enet_ring *ring; | |
189 | u8 *stat; | |
190 | u32 i; | |
191 | ||
192 | /* get stats for Tx */ | |
193 | for (i = 0; i < kinfo->num_tqps; i++) { | |
194 | ring = nic_priv->ring_data[i].ring; | |
195 | for (i = 0; i < HNS3_TXQ_STATS_COUNT; i++) { | |
196 | stat = (u8 *)ring + hns3_txq_stats[i].stats_offset; | |
197 | *data++ = *(u64 *)stat; | |
198 | } | |
199 | } | |
200 | ||
201 | /* get stats for Rx */ | |
202 | for (i = 0; i < kinfo->num_tqps; i++) { | |
203 | ring = nic_priv->ring_data[i + kinfo->num_tqps].ring; | |
204 | for (i = 0; i < HNS3_RXQ_STATS_COUNT; i++) { | |
205 | stat = (u8 *)ring + hns3_rxq_stats[i].stats_offset; | |
206 | *data++ = *(u64 *)stat; | |
207 | } | |
208 | } | |
209 | ||
210 | return data; | |
211 | } | |
212 | ||
213 | /* hns3_get_stats - get detail statistics. | |
214 | * @netdev: net device | |
215 | * @stats: statistics info. | |
216 | * @data: statistics data. | |
217 | */ | |
218 | static void hns3_get_stats(struct net_device *netdev, | |
219 | struct ethtool_stats *stats, u64 *data) | |
220 | { | |
221 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
222 | u64 *p = data; | |
223 | ||
224 | if (!h->ae_algo->ops->get_stats || !h->ae_algo->ops->update_stats) { | |
225 | netdev_err(netdev, "could not get any statistics\n"); | |
226 | return; | |
227 | } | |
228 | ||
229 | h->ae_algo->ops->update_stats(h, &netdev->stats); | |
230 | ||
231 | /* get per-queue stats */ | |
232 | p = hns3_get_stats_tqps(h, p); | |
233 | ||
234 | /* get MAC & other misc hardware stats */ | |
235 | h->ae_algo->ops->get_stats(h, p); | |
236 | } | |
237 | ||
238 | static void hns3_get_drvinfo(struct net_device *netdev, | |
239 | struct ethtool_drvinfo *drvinfo) | |
240 | { | |
241 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
242 | struct hnae3_handle *h = priv->ae_handle; | |
243 | ||
244 | strncpy(drvinfo->version, hns3_driver_version, | |
245 | sizeof(drvinfo->version)); | |
246 | drvinfo->version[sizeof(drvinfo->version) - 1] = '\0'; | |
247 | ||
248 | strncpy(drvinfo->driver, h->pdev->driver->name, | |
249 | sizeof(drvinfo->driver)); | |
250 | drvinfo->driver[sizeof(drvinfo->driver) - 1] = '\0'; | |
251 | ||
252 | strncpy(drvinfo->bus_info, pci_name(h->pdev), | |
253 | sizeof(drvinfo->bus_info)); | |
254 | drvinfo->bus_info[ETHTOOL_BUSINFO_LEN - 1] = '\0'; | |
255 | ||
256 | snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "0x%08x", | |
257 | priv->ae_handle->ae_algo->ops->get_fw_version(h)); | |
258 | } | |
259 | ||
260 | static u32 hns3_get_link(struct net_device *netdev) | |
261 | { | |
262 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
263 | ||
264 | if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_status) | |
265 | return h->ae_algo->ops->get_status(h); | |
266 | else | |
267 | return 0; | |
268 | } | |
269 | ||
270 | static void hns3_get_ringparam(struct net_device *netdev, | |
271 | struct ethtool_ringparam *param) | |
272 | { | |
273 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
274 | struct hnae3_handle *h = priv->ae_handle; | |
275 | int queue_num = h->kinfo.num_tqps; | |
276 | ||
277 | param->tx_max_pending = HNS3_RING_MAX_PENDING; | |
278 | param->rx_max_pending = HNS3_RING_MAX_PENDING; | |
279 | ||
280 | param->tx_pending = priv->ring_data[0].ring->desc_num; | |
281 | param->rx_pending = priv->ring_data[queue_num].ring->desc_num; | |
282 | } | |
283 | ||
284 | static void hns3_get_pauseparam(struct net_device *netdev, | |
285 | struct ethtool_pauseparam *param) | |
286 | { | |
287 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
288 | ||
289 | if (h->ae_algo && h->ae_algo->ops && h->ae_algo->ops->get_pauseparam) | |
290 | h->ae_algo->ops->get_pauseparam(h, ¶m->autoneg, | |
291 | ¶m->rx_pause, ¶m->tx_pause); | |
292 | } | |
293 | ||
294 | static int hns3_get_link_ksettings(struct net_device *netdev, | |
295 | struct ethtool_link_ksettings *cmd) | |
296 | { | |
297 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
298 | u32 supported_caps; | |
299 | u32 advertised_caps; | |
300 | u8 media_type = HNAE3_MEDIA_TYPE_UNKNOWN; | |
301 | u8 link_stat; | |
302 | u8 auto_neg; | |
303 | u8 duplex; | |
304 | u32 speed; | |
305 | ||
306 | if (!h->ae_algo || !h->ae_algo->ops) | |
307 | return -EOPNOTSUPP; | |
308 | ||
309 | /* 1.auto_neg & speed & duplex from cmd */ | |
310 | if (h->ae_algo->ops->get_ksettings_an_result) { | |
311 | h->ae_algo->ops->get_ksettings_an_result(h, &auto_neg, | |
312 | &speed, &duplex); | |
313 | cmd->base.autoneg = auto_neg; | |
314 | cmd->base.speed = speed; | |
315 | cmd->base.duplex = duplex; | |
316 | ||
317 | link_stat = hns3_get_link(netdev); | |
318 | if (!link_stat) { | |
319 | cmd->base.speed = (u32)SPEED_UNKNOWN; | |
320 | cmd->base.duplex = DUPLEX_UNKNOWN; | |
321 | } | |
322 | } | |
323 | ||
324 | /* 2.media_type get from bios parameter block */ | |
325 | if (h->ae_algo->ops->get_media_type) { | |
326 | h->ae_algo->ops->get_media_type(h, &media_type); | |
327 | ||
328 | switch (media_type) { | |
329 | case HNAE3_MEDIA_TYPE_FIBER: | |
330 | cmd->base.port = PORT_FIBRE; | |
331 | supported_caps = HNS3_LM_FIBRE_BIT | | |
332 | HNS3_LM_AUTONEG_BIT | | |
333 | HNS3_LM_PAUSE_BIT | | |
334 | HNS3_LM_1000BASET_FULL_BIT; | |
335 | ||
336 | advertised_caps = supported_caps; | |
337 | break; | |
338 | case HNAE3_MEDIA_TYPE_COPPER: | |
339 | cmd->base.port = PORT_TP; | |
340 | supported_caps = HNS3_LM_TP_BIT | | |
341 | HNS3_LM_AUTONEG_BIT | | |
342 | HNS3_LM_PAUSE_BIT | | |
343 | HNS3_LM_1000BASET_FULL_BIT | | |
344 | HNS3_LM_100BASET_FULL_BIT | | |
345 | HNS3_LM_100BASET_HALF_BIT | | |
346 | HNS3_LM_10BASET_FULL_BIT | | |
347 | HNS3_LM_10BASET_HALF_BIT; | |
348 | advertised_caps = supported_caps; | |
349 | break; | |
350 | case HNAE3_MEDIA_TYPE_BACKPLANE: | |
351 | cmd->base.port = PORT_NONE; | |
352 | supported_caps = HNS3_LM_BACKPLANE_BIT | | |
353 | HNS3_LM_PAUSE_BIT | | |
354 | HNS3_LM_AUTONEG_BIT | | |
355 | HNS3_LM_1000BASET_FULL_BIT | | |
356 | HNS3_LM_100BASET_FULL_BIT | | |
357 | HNS3_LM_100BASET_HALF_BIT | | |
358 | HNS3_LM_10BASET_FULL_BIT | | |
359 | HNS3_LM_10BASET_HALF_BIT; | |
360 | ||
361 | advertised_caps = supported_caps; | |
362 | break; | |
363 | case HNAE3_MEDIA_TYPE_UNKNOWN: | |
364 | default: | |
365 | cmd->base.port = PORT_OTHER; | |
366 | supported_caps = 0; | |
367 | advertised_caps = 0; | |
368 | break; | |
369 | } | |
370 | ||
371 | /* now, map driver link modes to ethtool link modes */ | |
372 | hns3_driv_to_eth_caps(supported_caps, cmd, false); | |
373 | hns3_driv_to_eth_caps(advertised_caps, cmd, true); | |
374 | } | |
375 | ||
376 | /* 3.mdix_ctrl&mdix get from phy reg */ | |
377 | if (h->ae_algo->ops->get_mdix_mode) | |
378 | h->ae_algo->ops->get_mdix_mode(h, &cmd->base.eth_tp_mdix_ctrl, | |
379 | &cmd->base.eth_tp_mdix); | |
380 | /* 4.mdio_support */ | |
381 | cmd->base.mdio_support = ETH_MDIO_SUPPORTS_C22; | |
382 | ||
383 | return 0; | |
384 | } | |
385 | ||
386 | static u32 hns3_get_rss_key_size(struct net_device *netdev) | |
387 | { | |
388 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
389 | ||
390 | if (!h->ae_algo || !h->ae_algo->ops || | |
391 | !h->ae_algo->ops->get_rss_key_size) | |
392 | return -EOPNOTSUPP; | |
393 | ||
394 | return h->ae_algo->ops->get_rss_key_size(h); | |
395 | } | |
396 | ||
397 | static u32 hns3_get_rss_indir_size(struct net_device *netdev) | |
398 | { | |
399 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
400 | ||
401 | if (!h->ae_algo || !h->ae_algo->ops || | |
402 | !h->ae_algo->ops->get_rss_indir_size) | |
403 | return -EOPNOTSUPP; | |
404 | ||
405 | return h->ae_algo->ops->get_rss_indir_size(h); | |
406 | } | |
407 | ||
408 | static int hns3_get_rss(struct net_device *netdev, u32 *indir, u8 *key, | |
409 | u8 *hfunc) | |
410 | { | |
411 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
412 | ||
413 | if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_rss) | |
414 | return -EOPNOTSUPP; | |
415 | ||
416 | return h->ae_algo->ops->get_rss(h, indir, key, hfunc); | |
417 | } | |
418 | ||
419 | static int hns3_set_rss(struct net_device *netdev, const u32 *indir, | |
420 | const u8 *key, const u8 hfunc) | |
421 | { | |
422 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
423 | ||
424 | if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->set_rss) | |
425 | return -EOPNOTSUPP; | |
426 | ||
427 | /* currently we only support Toeplitz hash */ | |
428 | if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP)) { | |
429 | netdev_err(netdev, | |
430 | "hash func not supported (only Toeplitz hash)\n"); | |
431 | return -EOPNOTSUPP; | |
432 | } | |
433 | if (!indir) { | |
434 | netdev_err(netdev, | |
435 | "set rss failed for indir is empty\n"); | |
436 | return -EOPNOTSUPP; | |
437 | } | |
438 | ||
439 | return h->ae_algo->ops->set_rss(h, indir, key, hfunc); | |
440 | } | |
441 | ||
442 | static int hns3_get_rxnfc(struct net_device *netdev, | |
443 | struct ethtool_rxnfc *cmd, | |
444 | u32 *rule_locs) | |
445 | { | |
446 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
447 | ||
448 | if (!h->ae_algo || !h->ae_algo->ops || !h->ae_algo->ops->get_tc_size) | |
449 | return -EOPNOTSUPP; | |
450 | ||
451 | switch (cmd->cmd) { | |
452 | case ETHTOOL_GRXRINGS: | |
453 | cmd->data = h->ae_algo->ops->get_tc_size(h); | |
454 | break; | |
455 | default: | |
456 | return -EOPNOTSUPP; | |
457 | } | |
458 | ||
459 | return 0; | |
460 | } | |
461 | ||
462 | static const struct ethtool_ops hns3_ethtool_ops = { | |
463 | .get_drvinfo = hns3_get_drvinfo, | |
464 | .get_link = hns3_get_link, | |
465 | .get_ringparam = hns3_get_ringparam, | |
466 | .get_pauseparam = hns3_get_pauseparam, | |
467 | .get_strings = hns3_get_strings, | |
468 | .get_ethtool_stats = hns3_get_stats, | |
469 | .get_sset_count = hns3_get_sset_count, | |
470 | .get_rxnfc = hns3_get_rxnfc, | |
471 | .get_rxfh_key_size = hns3_get_rss_key_size, | |
472 | .get_rxfh_indir_size = hns3_get_rss_indir_size, | |
473 | .get_rxfh = hns3_get_rss, | |
474 | .set_rxfh = hns3_set_rss, | |
475 | .get_link_ksettings = hns3_get_link_ksettings, | |
476 | }; | |
477 | ||
478 | void hns3_ethtool_set_ops(struct net_device *netdev) | |
479 | { | |
480 | netdev->ethtool_ops = &hns3_ethtool_ops; | |
481 | } |