1 /*
2 * coalesce.c - netlink implementation of coalescing commands
3 *
4 * Implementation of "ethtool -c <dev>" and "ethtool -C <dev> ..."
5 */
6
7 #include <errno.h>
8 #include <string.h>
9 #include <stdio.h>
10
11 #include "../internal.h"
12 #include "../common.h"
13 #include "netlink.h"
14 #include "parser.h"
15
16 /* COALESCE_GET */
17
coalesce_reply_cb(const struct nlmsghdr * nlhdr,void * data)18 int coalesce_reply_cb(const struct nlmsghdr *nlhdr, void *data)
19 {
20 const struct nlattr *tb[ETHTOOL_A_COALESCE_MAX + 1] = {};
21 DECLARE_ATTR_TB_INFO(tb);
22 struct nl_context *nlctx = data;
23 bool silent;
24 int err_ret;
25 int ret;
26
27 silent = nlctx->is_dump || nlctx->is_monitor;
28 err_ret = silent ? MNL_CB_OK : MNL_CB_ERROR;
29 ret = mnl_attr_parse(nlhdr, GENL_HDRLEN, attr_cb, &tb_info);
30 if (ret < 0)
31 return err_ret;
32 nlctx->devname = get_dev_name(tb[ETHTOOL_A_COALESCE_HEADER]);
33 if (!dev_ok(nlctx))
34 return err_ret;
35
36 open_json_object(NULL);
37
38 if (silent)
39 show_cr();
40 print_string(PRINT_ANY, "ifname", "Coalesce parameters for %s:\n",
41 nlctx->devname);
42 show_bool("rx", "Adaptive RX: %s ",
43 tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX]);
44 show_bool("tx", "TX: %s\n", tb[ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX]);
45 show_u32("stats-block-usecs", "stats-block-usecs:\t",
46 tb[ETHTOOL_A_COALESCE_STATS_BLOCK_USECS]);
47 show_u32("sample-interval", "sample-interval:\t",
48 tb[ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL]);
49 show_u32("pkt-rate-low", "pkt-rate-low:\t\t",
50 tb[ETHTOOL_A_COALESCE_PKT_RATE_LOW]);
51 show_u32("pkt-rate-high", "pkt-rate-high:\t\t",
52 tb[ETHTOOL_A_COALESCE_PKT_RATE_HIGH]);
53 show_cr();
54 show_u32("rx-usecs", "rx-usecs:\t", tb[ETHTOOL_A_COALESCE_RX_USECS]);
55 show_u32("rx-frames", "rx-frames:\t",
56 tb[ETHTOOL_A_COALESCE_RX_MAX_FRAMES]);
57 show_u32("rx-usecs-irq", "rx-usecs-irq:\t",
58 tb[ETHTOOL_A_COALESCE_RX_USECS_IRQ]);
59 show_u32("rx-frames-irq", "rx-frames-irq:\t",
60 tb[ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ]);
61 show_cr();
62 show_u32("tx-usecs", "tx-usecs:\t", tb[ETHTOOL_A_COALESCE_TX_USECS]);
63 show_u32("tx-frames", "tx-frames:\t",
64 tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES]);
65 show_u32("tx-usecs-irq", "tx-usecs-irq:\t",
66 tb[ETHTOOL_A_COALESCE_TX_USECS_IRQ]);
67 show_u32("tx-frames-irq", "tx-frames-irq:\t",
68 tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ]);
69 show_cr();
70 show_u32("rx-usecs-low", "rx-usecs-low:\t",
71 tb[ETHTOOL_A_COALESCE_RX_USECS_LOW]);
72 show_u32("rx-frame-low", "rx-frame-low:\t",
73 tb[ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW]);
74 show_u32("tx-usecs-low", "tx-usecs-low:\t",
75 tb[ETHTOOL_A_COALESCE_TX_USECS_LOW]);
76 show_u32("tx-frame-low", "tx-frame-low:\t",
77 tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW]);
78 show_cr();
79 show_u32("rx-usecs-high", "rx-usecs-high:\t",
80 tb[ETHTOOL_A_COALESCE_RX_USECS_HIGH]);
81 show_u32("rx-frame-high", "rx-frame-high:\t",
82 tb[ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH]);
83 show_u32("tx-usecs-high", "tx-usecs-high:\t",
84 tb[ETHTOOL_A_COALESCE_TX_USECS_HIGH]);
85 show_u32("tx-frame-high", "tx-frame-high:\t",
86 tb[ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH]);
87 show_cr();
88 show_bool("rx", "CQE mode RX: %s ",
89 tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_RX]);
90 show_bool("tx", "TX: %s\n", tb[ETHTOOL_A_COALESCE_USE_CQE_MODE_TX]);
91 show_cr();
92 show_u32("tx-aggr-max-bytes", "tx-aggr-max-bytes:\t",
93 tb[ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES]);
94 show_u32("tx-aggr-max-frames", "tx-aggr-max-frames:\t",
95 tb[ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES]);
96 show_u32("tx-aggr-time-usecs", "tx-aggr-time-usecs\t",
97 tb[ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS]);
98 show_cr();
99
100 close_json_object();
101
102 return MNL_CB_OK;
103 }
104
nl_gcoalesce(struct cmd_context * ctx)105 int nl_gcoalesce(struct cmd_context *ctx)
106 {
107 struct nl_context *nlctx = ctx->nlctx;
108 struct nl_socket *nlsk = nlctx->ethnl_socket;
109 int ret;
110
111 if (netlink_cmd_check(ctx, ETHTOOL_MSG_COALESCE_GET, true))
112 return -EOPNOTSUPP;
113 if (ctx->argc > 0) {
114 fprintf(stderr, "ethtool: unexpected parameter '%s'\n",
115 *ctx->argp);
116 return 1;
117 }
118
119 ret = nlsock_prep_get_request(nlsk, ETHTOOL_MSG_COALESCE_GET,
120 ETHTOOL_A_COALESCE_HEADER, 0);
121 if (ret < 0)
122 return ret;
123
124 new_json_obj(ctx->json);
125 ret = nlsock_send_get_request(nlsk, coalesce_reply_cb);
126 delete_json_obj();
127 return ret;
128 }
129
130 /* COALESCE_SET */
131
132 static const struct param_parser scoalesce_params[] = {
133 {
134 .arg = "adaptive-rx",
135 .type = ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX,
136 .handler = nl_parse_u8bool,
137 .min_argc = 1,
138 },
139 {
140 .arg = "adaptive-tx",
141 .type = ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX,
142 .handler = nl_parse_u8bool,
143 .min_argc = 1,
144 },
145 {
146 .arg = "sample-interval",
147 .type = ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL,
148 .handler = nl_parse_direct_u32,
149 .min_argc = 1,
150 },
151 {
152 .arg = "stats-block-usecs",
153 .type = ETHTOOL_A_COALESCE_STATS_BLOCK_USECS,
154 .handler = nl_parse_direct_u32,
155 .min_argc = 1,
156 },
157 {
158 .arg = "pkt-rate-low",
159 .type = ETHTOOL_A_COALESCE_PKT_RATE_LOW,
160 .handler = nl_parse_direct_u32,
161 .min_argc = 1,
162 },
163 {
164 .arg = "pkt-rate-high",
165 .type = ETHTOOL_A_COALESCE_PKT_RATE_HIGH,
166 .handler = nl_parse_direct_u32,
167 .min_argc = 1,
168 },
169 {
170 .arg = "rx-usecs",
171 .type = ETHTOOL_A_COALESCE_RX_USECS,
172 .handler = nl_parse_direct_u32,
173 .min_argc = 1,
174 },
175 {
176 .arg = "rx-frames",
177 .type = ETHTOOL_A_COALESCE_RX_MAX_FRAMES,
178 .handler = nl_parse_direct_u32,
179 .min_argc = 1,
180 },
181 {
182 .arg = "rx-usecs-irq",
183 .type = ETHTOOL_A_COALESCE_RX_USECS_IRQ,
184 .handler = nl_parse_direct_u32,
185 .min_argc = 1,
186 },
187 {
188 .arg = "rx-frames-irq",
189 .type = ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ,
190 .handler = nl_parse_direct_u32,
191 .min_argc = 1,
192 },
193 {
194 .arg = "tx-usecs",
195 .type = ETHTOOL_A_COALESCE_TX_USECS,
196 .handler = nl_parse_direct_u32,
197 .min_argc = 1,
198 },
199 {
200 .arg = "tx-frames",
201 .type = ETHTOOL_A_COALESCE_TX_MAX_FRAMES,
202 .handler = nl_parse_direct_u32,
203 .min_argc = 1,
204 },
205 {
206 .arg = "tx-usecs-irq",
207 .type = ETHTOOL_A_COALESCE_TX_USECS_IRQ,
208 .handler = nl_parse_direct_u32,
209 .min_argc = 1,
210 },
211 {
212 .arg = "tx-frames-irq",
213 .type = ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ,
214 .handler = nl_parse_direct_u32,
215 .min_argc = 1,
216 },
217 {
218 .arg = "rx-usecs-low",
219 .type = ETHTOOL_A_COALESCE_RX_USECS_LOW,
220 .handler = nl_parse_direct_u32,
221 .min_argc = 1,
222 },
223 {
224 .arg = "rx-frames-low",
225 .type = ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW,
226 .handler = nl_parse_direct_u32,
227 .min_argc = 1,
228 },
229 {
230 .arg = "tx-usecs-low",
231 .type = ETHTOOL_A_COALESCE_TX_USECS_LOW,
232 .handler = nl_parse_direct_u32,
233 .min_argc = 1,
234 },
235 {
236 .arg = "tx-frames-low",
237 .type = ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW,
238 .handler = nl_parse_direct_u32,
239 .min_argc = 1,
240 },
241 {
242 .arg = "rx-usecs-high",
243 .type = ETHTOOL_A_COALESCE_RX_USECS_HIGH,
244 .handler = nl_parse_direct_u32,
245 .min_argc = 1,
246 },
247 {
248 .arg = "rx-frames-high",
249 .type = ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH,
250 .handler = nl_parse_direct_u32,
251 .min_argc = 1,
252 },
253 {
254 .arg = "tx-usecs-high",
255 .type = ETHTOOL_A_COALESCE_TX_USECS_HIGH,
256 .handler = nl_parse_direct_u32,
257 .min_argc = 1,
258 },
259 {
260 .arg = "tx-frames-high",
261 .type = ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH,
262 .handler = nl_parse_direct_u32,
263 .min_argc = 1,
264 },
265 {
266 .arg = "cqe-mode-rx",
267 .type = ETHTOOL_A_COALESCE_USE_CQE_MODE_RX,
268 .handler = nl_parse_u8bool,
269 .min_argc = 1,
270 },
271 {
272 .arg = "cqe-mode-tx",
273 .type = ETHTOOL_A_COALESCE_USE_CQE_MODE_TX,
274 .handler = nl_parse_u8bool,
275 .min_argc = 1,
276 },
277 {
278 .arg = "tx-aggr-max-bytes",
279 .type = ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES,
280 .handler = nl_parse_direct_u32,
281 .min_argc = 1,
282 },
283 {
284 .arg = "tx-aggr-max-frames",
285 .type = ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES,
286 .handler = nl_parse_direct_u32,
287 .min_argc = 1,
288 },
289 {
290 .arg = "tx-aggr-time-usecs",
291 .type = ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS,
292 .handler = nl_parse_direct_u32,
293 .min_argc = 1,
294 },
295 {}
296 };
297
nl_scoalesce(struct cmd_context * ctx)298 int nl_scoalesce(struct cmd_context *ctx)
299 {
300 struct nl_context *nlctx = ctx->nlctx;
301 struct nl_msg_buff *msgbuff;
302 struct nl_socket *nlsk;
303 int ret;
304
305 if (netlink_cmd_check(ctx, ETHTOOL_MSG_COALESCE_SET, false))
306 return -EOPNOTSUPP;
307
308 nlctx->cmd = "-C";
309 nlctx->argp = ctx->argp;
310 nlctx->argc = ctx->argc;
311 nlctx->devname = ctx->devname;
312 nlsk = nlctx->ethnl_socket;
313 msgbuff = &nlsk->msgbuff;
314
315 ret = msg_init(nlctx, msgbuff, ETHTOOL_MSG_COALESCE_SET,
316 NLM_F_REQUEST | NLM_F_ACK);
317 if (ret < 0)
318 return 2;
319 if (ethnla_fill_header(msgbuff, ETHTOOL_A_COALESCE_HEADER,
320 ctx->devname, 0))
321 return -EMSGSIZE;
322
323 ret = nl_parser(nlctx, scoalesce_params, NULL, PARSER_GROUP_NONE, NULL);
324 if (ret < 0)
325 return 1;
326
327 ret = nlsock_sendmsg(nlsk, NULL);
328 if (ret < 0)
329 return 1;
330 ret = nlsock_process_reply(nlsk, nomsg_reply_cb, nlctx);
331 if (ret == 0)
332 return 0;
333 else
334 return nlctx->exit_code ?: 1;
335 }
336