1
2
3#include "netlink.h"
4#include "common.h"
5#include "bitset.h"
6
7struct stats_req_info {
8 struct ethnl_req_info base;
9 DECLARE_BITMAP(stat_mask, __ETHTOOL_STATS_CNT);
10};
11
12#define STATS_REQINFO(__req_base) \
13 container_of(__req_base, struct stats_req_info, base)
14
15struct stats_reply_data {
16 struct ethnl_reply_data base;
17 struct ethtool_eth_phy_stats phy_stats;
18 struct ethtool_eth_mac_stats mac_stats;
19 struct ethtool_eth_ctrl_stats ctrl_stats;
20 struct ethtool_rmon_stats rmon_stats;
21 const struct ethtool_rmon_hist_range *rmon_ranges;
22};
23
24#define STATS_REPDATA(__reply_base) \
25 container_of(__reply_base, struct stats_reply_data, base)
26
27const char stats_std_names[__ETHTOOL_STATS_CNT][ETH_GSTRING_LEN] = {
28 [ETHTOOL_STATS_ETH_PHY] = "eth-phy",
29 [ETHTOOL_STATS_ETH_MAC] = "eth-mac",
30 [ETHTOOL_STATS_ETH_CTRL] = "eth-ctrl",
31 [ETHTOOL_STATS_RMON] = "rmon",
32};
33
34const char stats_eth_phy_names[__ETHTOOL_A_STATS_ETH_PHY_CNT][ETH_GSTRING_LEN] = {
35 [ETHTOOL_A_STATS_ETH_PHY_5_SYM_ERR] = "SymbolErrorDuringCarrier",
36};
37
38const char stats_eth_mac_names[__ETHTOOL_A_STATS_ETH_MAC_CNT][ETH_GSTRING_LEN] = {
39 [ETHTOOL_A_STATS_ETH_MAC_2_TX_PKT] = "FramesTransmittedOK",
40 [ETHTOOL_A_STATS_ETH_MAC_3_SINGLE_COL] = "SingleCollisionFrames",
41 [ETHTOOL_A_STATS_ETH_MAC_4_MULTI_COL] = "MultipleCollisionFrames",
42 [ETHTOOL_A_STATS_ETH_MAC_5_RX_PKT] = "FramesReceivedOK",
43 [ETHTOOL_A_STATS_ETH_MAC_6_FCS_ERR] = "FrameCheckSequenceErrors",
44 [ETHTOOL_A_STATS_ETH_MAC_7_ALIGN_ERR] = "AlignmentErrors",
45 [ETHTOOL_A_STATS_ETH_MAC_8_TX_BYTES] = "OctetsTransmittedOK",
46 [ETHTOOL_A_STATS_ETH_MAC_9_TX_DEFER] = "FramesWithDeferredXmissions",
47 [ETHTOOL_A_STATS_ETH_MAC_10_LATE_COL] = "LateCollisions",
48 [ETHTOOL_A_STATS_ETH_MAC_11_XS_COL] = "FramesAbortedDueToXSColls",
49 [ETHTOOL_A_STATS_ETH_MAC_12_TX_INT_ERR] = "FramesLostDueToIntMACXmitError",
50 [ETHTOOL_A_STATS_ETH_MAC_13_CS_ERR] = "CarrierSenseErrors",
51 [ETHTOOL_A_STATS_ETH_MAC_14_RX_BYTES] = "OctetsReceivedOK",
52 [ETHTOOL_A_STATS_ETH_MAC_15_RX_INT_ERR] = "FramesLostDueToIntMACRcvError",
53 [ETHTOOL_A_STATS_ETH_MAC_18_TX_MCAST] = "MulticastFramesXmittedOK",
54 [ETHTOOL_A_STATS_ETH_MAC_19_TX_BCAST] = "BroadcastFramesXmittedOK",
55 [ETHTOOL_A_STATS_ETH_MAC_20_XS_DEFER] = "FramesWithExcessiveDeferral",
56 [ETHTOOL_A_STATS_ETH_MAC_21_RX_MCAST] = "MulticastFramesReceivedOK",
57 [ETHTOOL_A_STATS_ETH_MAC_22_RX_BCAST] = "BroadcastFramesReceivedOK",
58 [ETHTOOL_A_STATS_ETH_MAC_23_IR_LEN_ERR] = "InRangeLengthErrors",
59 [ETHTOOL_A_STATS_ETH_MAC_24_OOR_LEN] = "OutOfRangeLengthField",
60 [ETHTOOL_A_STATS_ETH_MAC_25_TOO_LONG_ERR] = "FrameTooLongErrors",
61};
62
63const char stats_eth_ctrl_names[__ETHTOOL_A_STATS_ETH_CTRL_CNT][ETH_GSTRING_LEN] = {
64 [ETHTOOL_A_STATS_ETH_CTRL_3_TX] = "MACControlFramesTransmitted",
65 [ETHTOOL_A_STATS_ETH_CTRL_4_RX] = "MACControlFramesReceived",
66 [ETHTOOL_A_STATS_ETH_CTRL_5_RX_UNSUP] = "UnsupportedOpcodesReceived",
67};
68
69const char stats_rmon_names[__ETHTOOL_A_STATS_RMON_CNT][ETH_GSTRING_LEN] = {
70 [ETHTOOL_A_STATS_RMON_UNDERSIZE] = "etherStatsUndersizePkts",
71 [ETHTOOL_A_STATS_RMON_OVERSIZE] = "etherStatsOversizePkts",
72 [ETHTOOL_A_STATS_RMON_FRAG] = "etherStatsFragments",
73 [ETHTOOL_A_STATS_RMON_JABBER] = "etherStatsJabbers",
74};
75
76const struct nla_policy ethnl_stats_get_policy[ETHTOOL_A_STATS_GROUPS + 1] = {
77 [ETHTOOL_A_STATS_HEADER] =
78 NLA_POLICY_NESTED(ethnl_header_policy),
79 [ETHTOOL_A_STATS_GROUPS] = { .type = NLA_NESTED },
80};
81
82static int stats_parse_request(struct ethnl_req_info *req_base,
83 struct nlattr **tb,
84 struct netlink_ext_ack *extack)
85{
86 struct stats_req_info *req_info = STATS_REQINFO(req_base);
87 bool mod = false;
88 int err;
89
90 err = ethnl_update_bitset(req_info->stat_mask, __ETHTOOL_STATS_CNT,
91 tb[ETHTOOL_A_STATS_GROUPS], stats_std_names,
92 extack, &mod);
93 if (err)
94 return err;
95
96 if (!mod) {
97 NL_SET_ERR_MSG(extack, "no stats requested");
98 return -EINVAL;
99 }
100
101 return 0;
102}
103
104static int stats_prepare_data(const struct ethnl_req_info *req_base,
105 struct ethnl_reply_data *reply_base,
106 struct genl_info *info)
107{
108 const struct stats_req_info *req_info = STATS_REQINFO(req_base);
109 struct stats_reply_data *data = STATS_REPDATA(reply_base);
110 struct net_device *dev = reply_base->dev;
111 int ret;
112
113 ret = ethnl_ops_begin(dev);
114 if (ret < 0)
115 return ret;
116
117
118
119
120 memset(&data->phy_stats, 0xff, sizeof(data->phy_stats));
121 memset(&data->mac_stats, 0xff, sizeof(data->mac_stats));
122 memset(&data->ctrl_stats, 0xff, sizeof(data->ctrl_stats));
123 memset(&data->rmon_stats, 0xff, sizeof(data->rmon_stats));
124
125 if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask) &&
126 dev->ethtool_ops->get_eth_phy_stats)
127 dev->ethtool_ops->get_eth_phy_stats(dev, &data->phy_stats);
128 if (test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask) &&
129 dev->ethtool_ops->get_eth_mac_stats)
130 dev->ethtool_ops->get_eth_mac_stats(dev, &data->mac_stats);
131 if (test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask) &&
132 dev->ethtool_ops->get_eth_ctrl_stats)
133 dev->ethtool_ops->get_eth_ctrl_stats(dev, &data->ctrl_stats);
134 if (test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask) &&
135 dev->ethtool_ops->get_rmon_stats)
136 dev->ethtool_ops->get_rmon_stats(dev, &data->rmon_stats,
137 &data->rmon_ranges);
138
139 ethnl_ops_complete(dev);
140 return 0;
141}
142
143static int stats_reply_size(const struct ethnl_req_info *req_base,
144 const struct ethnl_reply_data *reply_base)
145{
146 const struct stats_req_info *req_info = STATS_REQINFO(req_base);
147 unsigned int n_grps = 0, n_stats = 0;
148 int len = 0;
149
150 if (test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask)) {
151 n_stats += sizeof(struct ethtool_eth_phy_stats) / sizeof(u64);
152 n_grps++;
153 }
154 if (test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask)) {
155 n_stats += sizeof(struct ethtool_eth_mac_stats) / sizeof(u64);
156 n_grps++;
157 }
158 if (test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask)) {
159 n_stats += sizeof(struct ethtool_eth_ctrl_stats) / sizeof(u64);
160 n_grps++;
161 }
162 if (test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask)) {
163 n_stats += sizeof(struct ethtool_rmon_stats) / sizeof(u64);
164 n_grps++;
165
166
167 len += (nla_total_size(0) +
168 nla_total_size(4) +
169 nla_total_size(4)) *
170 ETHTOOL_RMON_HIST_MAX * 2;
171 }
172
173 len += n_grps * (nla_total_size(0) +
174 nla_total_size(4) +
175 nla_total_size(4));
176 len += n_stats * (nla_total_size(0) +
177 nla_total_size_64bit(sizeof(u64)));
178
179 return len;
180}
181
182static int stat_put(struct sk_buff *skb, u16 attrtype, u64 val)
183{
184 struct nlattr *nest;
185 int ret;
186
187 if (val == ETHTOOL_STAT_NOT_SET)
188 return 0;
189
190
191
192
193
194
195
196#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
197 if (!IS_ALIGNED((unsigned long)skb_tail_pointer(skb), 8))
198 if (!nla_reserve(skb, ETHTOOL_A_STATS_GRP_PAD, 0))
199 return -EMSGSIZE;
200#endif
201
202 nest = nla_nest_start(skb, ETHTOOL_A_STATS_GRP_STAT);
203 if (!nest)
204 return -EMSGSIZE;
205
206 ret = nla_put_u64_64bit(skb, attrtype, val, -1 );
207 if (ret) {
208 nla_nest_cancel(skb, nest);
209 return ret;
210 }
211
212 nla_nest_end(skb, nest);
213 return 0;
214}
215
216static int stats_put_phy_stats(struct sk_buff *skb,
217 const struct stats_reply_data *data)
218{
219 if (stat_put(skb, ETHTOOL_A_STATS_ETH_PHY_5_SYM_ERR,
220 data->phy_stats.SymbolErrorDuringCarrier))
221 return -EMSGSIZE;
222 return 0;
223}
224
225static int stats_put_mac_stats(struct sk_buff *skb,
226 const struct stats_reply_data *data)
227{
228 if (stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_2_TX_PKT,
229 data->mac_stats.FramesTransmittedOK) ||
230 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_3_SINGLE_COL,
231 data->mac_stats.SingleCollisionFrames) ||
232 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_4_MULTI_COL,
233 data->mac_stats.MultipleCollisionFrames) ||
234 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_5_RX_PKT,
235 data->mac_stats.FramesReceivedOK) ||
236 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_6_FCS_ERR,
237 data->mac_stats.FrameCheckSequenceErrors) ||
238 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_7_ALIGN_ERR,
239 data->mac_stats.AlignmentErrors) ||
240 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_8_TX_BYTES,
241 data->mac_stats.OctetsTransmittedOK) ||
242 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_9_TX_DEFER,
243 data->mac_stats.FramesWithDeferredXmissions) ||
244 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_10_LATE_COL,
245 data->mac_stats.LateCollisions) ||
246 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_11_XS_COL,
247 data->mac_stats.FramesAbortedDueToXSColls) ||
248 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_12_TX_INT_ERR,
249 data->mac_stats.FramesLostDueToIntMACXmitError) ||
250 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_13_CS_ERR,
251 data->mac_stats.CarrierSenseErrors) ||
252 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_14_RX_BYTES,
253 data->mac_stats.OctetsReceivedOK) ||
254 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_15_RX_INT_ERR,
255 data->mac_stats.FramesLostDueToIntMACRcvError) ||
256 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_18_TX_MCAST,
257 data->mac_stats.MulticastFramesXmittedOK) ||
258 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_19_TX_BCAST,
259 data->mac_stats.BroadcastFramesXmittedOK) ||
260 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_20_XS_DEFER,
261 data->mac_stats.FramesWithExcessiveDeferral) ||
262 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_21_RX_MCAST,
263 data->mac_stats.MulticastFramesReceivedOK) ||
264 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_22_RX_BCAST,
265 data->mac_stats.BroadcastFramesReceivedOK) ||
266 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_23_IR_LEN_ERR,
267 data->mac_stats.InRangeLengthErrors) ||
268 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_24_OOR_LEN,
269 data->mac_stats.OutOfRangeLengthField) ||
270 stat_put(skb, ETHTOOL_A_STATS_ETH_MAC_25_TOO_LONG_ERR,
271 data->mac_stats.FrameTooLongErrors))
272 return -EMSGSIZE;
273 return 0;
274}
275
276static int stats_put_ctrl_stats(struct sk_buff *skb,
277 const struct stats_reply_data *data)
278{
279 if (stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_3_TX,
280 data->ctrl_stats.MACControlFramesTransmitted) ||
281 stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_4_RX,
282 data->ctrl_stats.MACControlFramesReceived) ||
283 stat_put(skb, ETHTOOL_A_STATS_ETH_CTRL_5_RX_UNSUP,
284 data->ctrl_stats.UnsupportedOpcodesReceived))
285 return -EMSGSIZE;
286 return 0;
287}
288
289static int stats_put_rmon_hist(struct sk_buff *skb, u32 attr, const u64 *hist,
290 const struct ethtool_rmon_hist_range *ranges)
291{
292 struct nlattr *nest;
293 int i;
294
295 if (!ranges)
296 return 0;
297
298 for (i = 0; i < ETHTOOL_RMON_HIST_MAX; i++) {
299 if (!ranges[i].low && !ranges[i].high)
300 break;
301 if (hist[i] == ETHTOOL_STAT_NOT_SET)
302 continue;
303
304 nest = nla_nest_start(skb, attr);
305 if (!nest)
306 return -EMSGSIZE;
307
308 if (nla_put_u32(skb, ETHTOOL_A_STATS_GRP_HIST_BKT_LOW,
309 ranges[i].low) ||
310 nla_put_u32(skb, ETHTOOL_A_STATS_GRP_HIST_BKT_HI,
311 ranges[i].high) ||
312 nla_put_u64_64bit(skb, ETHTOOL_A_STATS_GRP_HIST_VAL,
313 hist[i], ETHTOOL_A_STATS_GRP_PAD))
314 goto err_cancel_hist;
315
316 nla_nest_end(skb, nest);
317 }
318
319 return 0;
320
321err_cancel_hist:
322 nla_nest_cancel(skb, nest);
323 return -EMSGSIZE;
324}
325
326static int stats_put_rmon_stats(struct sk_buff *skb,
327 const struct stats_reply_data *data)
328{
329 if (stats_put_rmon_hist(skb, ETHTOOL_A_STATS_GRP_HIST_RX,
330 data->rmon_stats.hist, data->rmon_ranges) ||
331 stats_put_rmon_hist(skb, ETHTOOL_A_STATS_GRP_HIST_TX,
332 data->rmon_stats.hist_tx, data->rmon_ranges))
333 return -EMSGSIZE;
334
335 if (stat_put(skb, ETHTOOL_A_STATS_RMON_UNDERSIZE,
336 data->rmon_stats.undersize_pkts) ||
337 stat_put(skb, ETHTOOL_A_STATS_RMON_OVERSIZE,
338 data->rmon_stats.oversize_pkts) ||
339 stat_put(skb, ETHTOOL_A_STATS_RMON_FRAG,
340 data->rmon_stats.fragments) ||
341 stat_put(skb, ETHTOOL_A_STATS_RMON_JABBER,
342 data->rmon_stats.jabbers))
343 return -EMSGSIZE;
344
345 return 0;
346}
347
348static int stats_put_stats(struct sk_buff *skb,
349 const struct stats_reply_data *data,
350 u32 id, u32 ss_id,
351 int (*cb)(struct sk_buff *skb,
352 const struct stats_reply_data *data))
353{
354 struct nlattr *nest;
355
356 nest = nla_nest_start(skb, ETHTOOL_A_STATS_GRP);
357 if (!nest)
358 return -EMSGSIZE;
359
360 if (nla_put_u32(skb, ETHTOOL_A_STATS_GRP_ID, id) ||
361 nla_put_u32(skb, ETHTOOL_A_STATS_GRP_SS_ID, ss_id))
362 goto err_cancel;
363
364 if (cb(skb, data))
365 goto err_cancel;
366
367 nla_nest_end(skb, nest);
368 return 0;
369
370err_cancel:
371 nla_nest_cancel(skb, nest);
372 return -EMSGSIZE;
373}
374
375static int stats_fill_reply(struct sk_buff *skb,
376 const struct ethnl_req_info *req_base,
377 const struct ethnl_reply_data *reply_base)
378{
379 const struct stats_req_info *req_info = STATS_REQINFO(req_base);
380 const struct stats_reply_data *data = STATS_REPDATA(reply_base);
381 int ret = 0;
382
383 if (!ret && test_bit(ETHTOOL_STATS_ETH_PHY, req_info->stat_mask))
384 ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_PHY,
385 ETH_SS_STATS_ETH_PHY,
386 stats_put_phy_stats);
387 if (!ret && test_bit(ETHTOOL_STATS_ETH_MAC, req_info->stat_mask))
388 ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_MAC,
389 ETH_SS_STATS_ETH_MAC,
390 stats_put_mac_stats);
391 if (!ret && test_bit(ETHTOOL_STATS_ETH_CTRL, req_info->stat_mask))
392 ret = stats_put_stats(skb, data, ETHTOOL_STATS_ETH_CTRL,
393 ETH_SS_STATS_ETH_CTRL,
394 stats_put_ctrl_stats);
395 if (!ret && test_bit(ETHTOOL_STATS_RMON, req_info->stat_mask))
396 ret = stats_put_stats(skb, data, ETHTOOL_STATS_RMON,
397 ETH_SS_STATS_RMON, stats_put_rmon_stats);
398
399 return ret;
400}
401
402const struct ethnl_request_ops ethnl_stats_request_ops = {
403 .request_cmd = ETHTOOL_MSG_STATS_GET,
404 .reply_cmd = ETHTOOL_MSG_STATS_GET_REPLY,
405 .hdr_attr = ETHTOOL_A_STATS_HEADER,
406 .req_info_size = sizeof(struct stats_req_info),
407 .reply_data_size = sizeof(struct stats_reply_data),
408
409 .parse_request = stats_parse_request,
410 .prepare_data = stats_prepare_data,
411 .reply_size = stats_reply_size,
412 .fill_reply = stats_fill_reply,
413};
414
