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2b4a8990 MK |
1 | ============================= |
2 | Netlink interface for ethtool | |
3 | ============================= | |
4 | ||
5 | ||
6 | Basic information | |
7 | ================= | |
8 | ||
9 | Netlink interface for ethtool uses generic netlink family ``ethtool`` | |
10 | (userspace application should use macros ``ETHTOOL_GENL_NAME`` and | |
11 | ``ETHTOOL_GENL_VERSION`` defined in ``<linux/ethtool_netlink.h>`` uapi | |
12 | header). This family does not use a specific header, all information in | |
13 | requests and replies is passed using netlink attributes. | |
14 | ||
15 | The ethtool netlink interface uses extended ACK for error and warning | |
16 | reporting, userspace application developers are encouraged to make these | |
17 | messages available to user in a suitable way. | |
18 | ||
19 | Requests can be divided into three categories: "get" (retrieving information), | |
20 | "set" (setting parameters) and "action" (invoking an action). | |
21 | ||
22 | All "set" and "action" type requests require admin privileges | |
23 | (``CAP_NET_ADMIN`` in the namespace). Most "get" type requests are allowed for | |
24 | anyone but there are exceptions (where the response contains sensitive | |
25 | information). In some cases, the request as such is allowed for anyone but | |
26 | unprivileged users have attributes with sensitive information (e.g. | |
27 | wake-on-lan password) omitted. | |
28 | ||
29 | ||
30 | Conventions | |
31 | =========== | |
32 | ||
33 | Attributes which represent a boolean value usually use NLA_U8 type so that we | |
34 | can distinguish three states: "on", "off" and "not present" (meaning the | |
35 | information is not available in "get" requests or value is not to be changed | |
36 | in "set" requests). For these attributes, the "true" value should be passed as | |
37 | number 1 but any non-zero value should be understood as "true" by recipient. | |
38 | In the tables below, "bool" denotes NLA_U8 attributes interpreted in this way. | |
39 | ||
40 | In the message structure descriptions below, if an attribute name is suffixed | |
41 | with "+", parent nest can contain multiple attributes of the same type. This | |
42 | implements an array of entries. | |
43 | ||
353407d9 IS |
44 | Attributes that need to be filled-in by device drivers and that are dumped to |
45 | user space based on whether they are valid or not should not use zero as a | |
46 | valid value. This avoids the need to explicitly signal the validity of the | |
47 | attribute in the device driver API. | |
48 | ||
2b4a8990 MK |
49 | |
50 | Request header | |
51 | ============== | |
52 | ||
53 | Each request or reply message contains a nested attribute with common header. | |
54 | Structure of this header is | |
55 | ||
56 | ============================== ====== ============================= | |
57 | ``ETHTOOL_A_HEADER_DEV_INDEX`` u32 device ifindex | |
58 | ``ETHTOOL_A_HEADER_DEV_NAME`` string device name | |
59 | ``ETHTOOL_A_HEADER_FLAGS`` u32 flags common for all requests | |
60 | ============================== ====== ============================= | |
61 | ||
62 | ``ETHTOOL_A_HEADER_DEV_INDEX`` and ``ETHTOOL_A_HEADER_DEV_NAME`` identify the | |
63 | device message relates to. One of them is sufficient in requests, if both are | |
64 | used, they must identify the same device. Some requests, e.g. global string | |
65 | sets, do not require device identification. Most ``GET`` requests also allow | |
66 | dump requests without device identification to query the same information for | |
67 | all devices providing it (each device in a separate message). | |
68 | ||
69 | ``ETHTOOL_A_HEADER_FLAGS`` is a bitmap of request flags common for all request | |
70 | types. The interpretation of these flags is the same for all request types but | |
71 | the flags may not apply to requests. Recognized flags are: | |
72 | ||
73 | ================================= =================================== | |
74 | ``ETHTOOL_FLAG_COMPACT_BITSETS`` use compact format bitsets in reply | |
75 | ``ETHTOOL_FLAG_OMIT_REPLY`` omit optional reply (_SET and _ACT) | |
9a27a330 | 76 | ``ETHTOOL_FLAG_STATS`` include optional device statistics |
2b4a8990 MK |
77 | ================================= =================================== |
78 | ||
79 | New request flags should follow the general idea that if the flag is not set, | |
80 | the behaviour is backward compatible, i.e. requests from old clients not aware | |
81 | of the flag should be interpreted the way the client expects. A client must | |
82 | not set flags it does not understand. | |
83 | ||
84 | ||
10b518d4 MK |
85 | Bit sets |
86 | ======== | |
87 | ||
88 | For short bitmaps of (reasonably) fixed length, standard ``NLA_BITFIELD32`` | |
89 | type is used. For arbitrary length bitmaps, ethtool netlink uses a nested | |
90 | attribute with contents of one of two forms: compact (two binary bitmaps | |
91 | representing bit values and mask of affected bits) and bit-by-bit (list of | |
92 | bits identified by either index or name). | |
93 | ||
94 | Verbose (bit-by-bit) bitsets allow sending symbolic names for bits together | |
95 | with their values which saves a round trip (when the bitset is passed in a | |
96 | request) or at least a second request (when the bitset is in a reply). This is | |
97 | useful for one shot applications like traditional ethtool command. On the | |
98 | other hand, long running applications like ethtool monitor (displaying | |
99 | notifications) or network management daemons may prefer fetching the names | |
100 | only once and using compact form to save message size. Notifications from | |
101 | ethtool netlink interface always use compact form for bitsets. | |
102 | ||
103 | A bitset can represent either a value/mask pair (``ETHTOOL_A_BITSET_NOMASK`` | |
104 | not set) or a single bitmap (``ETHTOOL_A_BITSET_NOMASK`` set). In requests | |
105 | modifying a bitmap, the former changes the bit set in mask to values set in | |
106 | value and preserves the rest; the latter sets the bits set in the bitmap and | |
107 | clears the rest. | |
108 | ||
a266ef69 | 109 | Compact form: nested (bitset) attribute contents: |
10b518d4 MK |
110 | |
111 | ============================ ====== ============================ | |
112 | ``ETHTOOL_A_BITSET_NOMASK`` flag no mask, only a list | |
113 | ``ETHTOOL_A_BITSET_SIZE`` u32 number of significant bits | |
114 | ``ETHTOOL_A_BITSET_VALUE`` binary bitmap of bit values | |
115 | ``ETHTOOL_A_BITSET_MASK`` binary bitmap of valid bits | |
116 | ============================ ====== ============================ | |
117 | ||
118 | Value and mask must have length at least ``ETHTOOL_A_BITSET_SIZE`` bits | |
119 | rounded up to a multiple of 32 bits. They consist of 32-bit words in host byte | |
120 | order, words ordered from least significant to most significant (i.e. the same | |
121 | way as bitmaps are passed with ioctl interface). | |
122 | ||
123 | For compact form, ``ETHTOOL_A_BITSET_SIZE`` and ``ETHTOOL_A_BITSET_VALUE`` are | |
124 | mandatory. ``ETHTOOL_A_BITSET_MASK`` attribute is mandatory if | |
125 | ``ETHTOOL_A_BITSET_NOMASK`` is not set (bitset represents a value/mask pair); | |
126 | if ``ETHTOOL_A_BITSET_NOMASK`` is not set, ``ETHTOOL_A_BITSET_MASK`` is not | |
127 | allowed (bitset represents a single bitmap. | |
128 | ||
129 | Kernel bit set length may differ from userspace length if older application is | |
130 | used on newer kernel or vice versa. If userspace bitmap is longer, an error is | |
131 | issued only if the request actually tries to set values of some bits not | |
132 | recognized by kernel. | |
133 | ||
134 | Bit-by-bit form: nested (bitset) attribute contents: | |
135 | ||
136 | +------------------------------------+--------+-----------------------------+ | |
137 | | ``ETHTOOL_A_BITSET_NOMASK`` | flag | no mask, only a list | | |
138 | +------------------------------------+--------+-----------------------------+ | |
139 | | ``ETHTOOL_A_BITSET_SIZE`` | u32 | number of significant bits | | |
140 | +------------------------------------+--------+-----------------------------+ | |
141 | | ``ETHTOOL_A_BITSET_BITS`` | nested | array of bits | | |
142 | +-+----------------------------------+--------+-----------------------------+ | |
143 | | | ``ETHTOOL_A_BITSET_BITS_BIT+`` | nested | one bit | | |
144 | +-+-+--------------------------------+--------+-----------------------------+ | |
145 | | | | ``ETHTOOL_A_BITSET_BIT_INDEX`` | u32 | bit index (0 for LSB) | | |
146 | +-+-+--------------------------------+--------+-----------------------------+ | |
147 | | | | ``ETHTOOL_A_BITSET_BIT_NAME`` | string | bit name | | |
148 | +-+-+--------------------------------+--------+-----------------------------+ | |
149 | | | | ``ETHTOOL_A_BITSET_BIT_VALUE`` | flag | present if bit is set | | |
150 | +-+-+--------------------------------+--------+-----------------------------+ | |
151 | ||
152 | Bit size is optional for bit-by-bit form. ``ETHTOOL_A_BITSET_BITS`` nest can | |
153 | only contain ``ETHTOOL_A_BITSET_BITS_BIT`` attributes but there can be an | |
154 | arbitrary number of them. A bit may be identified by its index or by its | |
155 | name. When used in requests, listed bits are set to 0 or 1 according to | |
156 | ``ETHTOOL_A_BITSET_BIT_VALUE``, the rest is preserved. A request fails if | |
157 | index exceeds kernel bit length or if name is not recognized. | |
158 | ||
159 | When ``ETHTOOL_A_BITSET_NOMASK`` flag is present, bitset is interpreted as | |
160 | a simple bitmap. ``ETHTOOL_A_BITSET_BIT_VALUE`` attributes are not used in | |
161 | such case. Such bitset represents a bitmap with listed bits set and the rest | |
162 | zero. | |
163 | ||
164 | In requests, application can use either form. Form used by kernel in reply is | |
165 | determined by ``ETHTOOL_FLAG_COMPACT_BITSETS`` flag in flags field of request | |
166 | header. Semantics of value and mask depends on the attribute. | |
167 | ||
168 | ||
2b4a8990 MK |
169 | List of message types |
170 | ===================== | |
171 | ||
172 | All constants identifying message types use ``ETHTOOL_CMD_`` prefix and suffix | |
173 | according to message purpose: | |
174 | ||
175 | ============== ====================================== | |
176 | ``_GET`` userspace request to retrieve data | |
177 | ``_SET`` userspace request to set data | |
178 | ``_ACT`` userspace request to perform an action | |
179 | ``_GET_REPLY`` kernel reply to a ``GET`` request | |
180 | ``_SET_REPLY`` kernel reply to a ``SET`` request | |
181 | ``_ACT_REPLY`` kernel reply to an ``ACT`` request | |
182 | ``_NTF`` kernel notification | |
183 | ============== ====================================== | |
184 | ||
71921690 MK |
185 | Userspace to kernel: |
186 | ||
353407d9 | 187 | ===================================== ================================= |
71921690 | 188 | ``ETHTOOL_MSG_STRSET_GET`` get string set |
459e0b81 | 189 | ``ETHTOOL_MSG_LINKINFO_GET`` get link settings |
a53f3d41 | 190 | ``ETHTOOL_MSG_LINKINFO_SET`` set link settings |
f625aa9b | 191 | ``ETHTOOL_MSG_LINKMODES_GET`` get link modes info |
bfbcfe20 | 192 | ``ETHTOOL_MSG_LINKMODES_SET`` set link modes info |
3d2b847f | 193 | ``ETHTOOL_MSG_LINKSTATE_GET`` get link state |
6a94b8cc | 194 | ``ETHTOOL_MSG_DEBUG_GET`` get debugging settings |
e54d04e3 | 195 | ``ETHTOOL_MSG_DEBUG_SET`` set debugging settings |
51ea22b0 | 196 | ``ETHTOOL_MSG_WOL_GET`` get wake-on-lan settings |
8d425b19 | 197 | ``ETHTOOL_MSG_WOL_SET`` set wake-on-lan settings |
0524399d | 198 | ``ETHTOOL_MSG_FEATURES_GET`` get device features |
0980bfcd | 199 | ``ETHTOOL_MSG_FEATURES_SET`` set device features |
e16c3386 | 200 | ``ETHTOOL_MSG_PRIVFLAGS_GET`` get private flags |
f265d799 | 201 | ``ETHTOOL_MSG_PRIVFLAGS_SET`` set private flags |
e4a1717b | 202 | ``ETHTOOL_MSG_RINGS_GET`` get ring sizes |
2fc2929e | 203 | ``ETHTOOL_MSG_RINGS_SET`` set ring sizes |
0c84979c | 204 | ``ETHTOOL_MSG_CHANNELS_GET`` get channel counts |
e19c591e | 205 | ``ETHTOOL_MSG_CHANNELS_SET`` set channel counts |
21727545 | 206 | ``ETHTOOL_MSG_COALESCE_GET`` get coalescing parameters |
9881418c | 207 | ``ETHTOOL_MSG_COALESCE_SET`` set coalescing parameters |
7f59fb32 | 208 | ``ETHTOOL_MSG_PAUSE_GET`` get pause parameters |
3ab87993 | 209 | ``ETHTOOL_MSG_PAUSE_SET`` set pause parameters |
b7eeefe7 | 210 | ``ETHTOOL_MSG_EEE_GET`` get EEE settings |
fd77be7b | 211 | ``ETHTOOL_MSG_EEE_SET`` set EEE settings |
5b071c59 | 212 | ``ETHTOOL_MSG_TSINFO_GET`` get timestamping info |
11ca3c42 | 213 | ``ETHTOOL_MSG_CABLE_TEST_ACT`` action start cable test |
a331172b | 214 | ``ETHTOOL_MSG_CABLE_TEST_TDR_ACT`` action start raw TDR cable test |
19a83d36 | 215 | ``ETHTOOL_MSG_TUNNEL_INFO_GET`` get tunnel offload info |
1e5d1f69 JK |
216 | ``ETHTOOL_MSG_FEC_GET`` get FEC settings |
217 | ``ETHTOOL_MSG_FEC_SET`` set FEC settings | |
e9377a91 | 218 | ``ETHTOOL_MSG_MODULE_EEPROM_GET`` read SFP module EEPROM |
ddc78b36 | 219 | ``ETHTOOL_MSG_STATS_GET`` get standard statistics |
c156174a | 220 | ``ETHTOOL_MSG_PHC_VCLOCKS_GET`` get PHC virtual clocks info |
353407d9 IS |
221 | ``ETHTOOL_MSG_MODULE_SET`` set transceiver module parameters |
222 | ``ETHTOOL_MSG_MODULE_GET`` get transceiver module parameters | |
18ff0bcd OR |
223 | ``ETHTOOL_MSG_PSE_SET`` set PSE parameters |
224 | ``ETHTOOL_MSG_PSE_GET`` get PSE parameters | |
7112a046 | 225 | ``ETHTOOL_MSG_RSS_GET`` get RSS settings |
cc124ad3 MC |
226 | ``ETHTOOL_MSG_PLCA_GET_CFG`` get PLCA RS parameters |
227 | ``ETHTOOL_MSG_PLCA_SET_CFG`` set PLCA RS parameters | |
228 | ``ETHTOOL_MSG_PLCA_GET_STATUS`` get PLCA RS status | |
37000004 VO |
229 | ``ETHTOOL_MSG_MM_GET`` get MAC merge layer state |
230 | ``ETHTOOL_MSG_MM_SET`` set MAC merge layer parameters | |
353407d9 | 231 | ===================================== ================================= |
71921690 MK |
232 | |
233 | Kernel to userspace: | |
234 | ||
e9377a91 JK |
235 | ======================================== ================================= |
236 | ``ETHTOOL_MSG_STRSET_GET_REPLY`` string set contents | |
237 | ``ETHTOOL_MSG_LINKINFO_GET_REPLY`` link settings | |
238 | ``ETHTOOL_MSG_LINKINFO_NTF`` link settings notification | |
239 | ``ETHTOOL_MSG_LINKMODES_GET_REPLY`` link modes info | |
240 | ``ETHTOOL_MSG_LINKMODES_NTF`` link modes notification | |
241 | ``ETHTOOL_MSG_LINKSTATE_GET_REPLY`` link state info | |
242 | ``ETHTOOL_MSG_DEBUG_GET_REPLY`` debugging settings | |
243 | ``ETHTOOL_MSG_DEBUG_NTF`` debugging settings notification | |
244 | ``ETHTOOL_MSG_WOL_GET_REPLY`` wake-on-lan settings | |
245 | ``ETHTOOL_MSG_WOL_NTF`` wake-on-lan settings notification | |
246 | ``ETHTOOL_MSG_FEATURES_GET_REPLY`` device features | |
247 | ``ETHTOOL_MSG_FEATURES_SET_REPLY`` optional reply to FEATURES_SET | |
248 | ``ETHTOOL_MSG_FEATURES_NTF`` netdev features notification | |
249 | ``ETHTOOL_MSG_PRIVFLAGS_GET_REPLY`` private flags | |
250 | ``ETHTOOL_MSG_PRIVFLAGS_NTF`` private flags | |
251 | ``ETHTOOL_MSG_RINGS_GET_REPLY`` ring sizes | |
252 | ``ETHTOOL_MSG_RINGS_NTF`` ring sizes | |
253 | ``ETHTOOL_MSG_CHANNELS_GET_REPLY`` channel counts | |
254 | ``ETHTOOL_MSG_CHANNELS_NTF`` channel counts | |
255 | ``ETHTOOL_MSG_COALESCE_GET_REPLY`` coalescing parameters | |
256 | ``ETHTOOL_MSG_COALESCE_NTF`` coalescing parameters | |
257 | ``ETHTOOL_MSG_PAUSE_GET_REPLY`` pause parameters | |
258 | ``ETHTOOL_MSG_PAUSE_NTF`` pause parameters | |
259 | ``ETHTOOL_MSG_EEE_GET_REPLY`` EEE settings | |
260 | ``ETHTOOL_MSG_EEE_NTF`` EEE settings | |
261 | ``ETHTOOL_MSG_TSINFO_GET_REPLY`` timestamping info | |
262 | ``ETHTOOL_MSG_CABLE_TEST_NTF`` Cable test results | |
263 | ``ETHTOOL_MSG_CABLE_TEST_TDR_NTF`` Cable test TDR results | |
264 | ``ETHTOOL_MSG_TUNNEL_INFO_GET_REPLY`` tunnel offload info | |
265 | ``ETHTOOL_MSG_FEC_GET_REPLY`` FEC settings | |
266 | ``ETHTOOL_MSG_FEC_NTF`` FEC settings | |
267 | ``ETHTOOL_MSG_MODULE_EEPROM_GET_REPLY`` read SFP module EEPROM | |
268 | ``ETHTOOL_MSG_STATS_GET_REPLY`` standard statistics | |
c156174a | 269 | ``ETHTOOL_MSG_PHC_VCLOCKS_GET_REPLY`` PHC virtual clocks info |
353407d9 | 270 | ``ETHTOOL_MSG_MODULE_GET_REPLY`` transceiver module parameters |
18ff0bcd | 271 | ``ETHTOOL_MSG_PSE_GET_REPLY`` PSE parameters |
7112a046 | 272 | ``ETHTOOL_MSG_RSS_GET_REPLY`` RSS settings |
cc124ad3 MC |
273 | ``ETHTOOL_MSG_PLCA_GET_CFG_REPLY`` PLCA RS parameters |
274 | ``ETHTOOL_MSG_PLCA_GET_STATUS_REPLY`` PLCA RS status | |
275 | ``ETHTOOL_MSG_PLCA_NTF`` PLCA RS parameters | |
37000004 | 276 | ``ETHTOOL_MSG_MM_GET_REPLY`` MAC merge layer status |
e9377a91 | 277 | ======================================== ================================= |
71921690 | 278 | |
2b4a8990 MK |
279 | ``GET`` requests are sent by userspace applications to retrieve device |
280 | information. They usually do not contain any message specific attributes. | |
281 | Kernel replies with corresponding "GET_REPLY" message. For most types, ``GET`` | |
282 | request with ``NLM_F_DUMP`` and no device identification can be used to query | |
283 | the information for all devices supporting the request. | |
284 | ||
285 | If the data can be also modified, corresponding ``SET`` message with the same | |
286 | layout as corresponding ``GET_REPLY`` is used to request changes. Only | |
287 | attributes where a change is requested are included in such request (also, not | |
288 | all attributes may be changed). Replies to most ``SET`` request consist only | |
289 | of error code and extack; if kernel provides additional data, it is sent in | |
290 | the form of corresponding ``SET_REPLY`` message which can be suppressed by | |
291 | setting ``ETHTOOL_FLAG_OMIT_REPLY`` flag in request header. | |
292 | ||
293 | Data modification also triggers sending a ``NTF`` message with a notification. | |
294 | These usually bear only a subset of attributes which was affected by the | |
295 | change. The same notification is issued if the data is modified using other | |
296 | means (mostly ioctl ethtool interface). Unlike notifications from ethtool | |
297 | netlink code which are only sent if something actually changed, notifications | |
298 | triggered by ioctl interface may be sent even if the request did not actually | |
299 | change any data. | |
300 | ||
301 | ``ACT`` messages request kernel (driver) to perform a specific action. If some | |
302 | information is reported by kernel (which can be suppressed by setting | |
303 | ``ETHTOOL_FLAG_OMIT_REPLY`` flag in request header), the reply takes form of | |
304 | an ``ACT_REPLY`` message. Performing an action also triggers a notification | |
305 | (``NTF`` message). | |
306 | ||
307 | Later sections describe the format and semantics of these messages. | |
308 | ||
309 | ||
71921690 MK |
310 | STRSET_GET |
311 | ========== | |
312 | ||
313 | Requests contents of a string set as provided by ioctl commands | |
314 | ``ETHTOOL_GSSET_INFO`` and ``ETHTOOL_GSTRINGS.`` String sets are not user | |
315 | writeable so that the corresponding ``STRSET_SET`` message is only used in | |
316 | kernel replies. There are two types of string sets: global (independent of | |
317 | a device, e.g. device feature names) and device specific (e.g. device private | |
318 | flags). | |
319 | ||
320 | Request contents: | |
321 | ||
322 | +---------------------------------------+--------+------------------------+ | |
323 | | ``ETHTOOL_A_STRSET_HEADER`` | nested | request header | | |
324 | +---------------------------------------+--------+------------------------+ | |
325 | | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | string set to request | | |
326 | +-+-------------------------------------+--------+------------------------+ | |
327 | | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set | | |
328 | +-+-+-----------------------------------+--------+------------------------+ | |
329 | | | | ``ETHTOOL_A_STRINGSET_ID`` | u32 | set id | | |
330 | +-+-+-----------------------------------+--------+------------------------+ | |
331 | ||
332 | Kernel response contents: | |
333 | ||
334 | +---------------------------------------+--------+-----------------------+ | |
335 | | ``ETHTOOL_A_STRSET_HEADER`` | nested | reply header | | |
336 | +---------------------------------------+--------+-----------------------+ | |
337 | | ``ETHTOOL_A_STRSET_STRINGSETS`` | nested | array of string sets | | |
338 | +-+-------------------------------------+--------+-----------------------+ | |
339 | | | ``ETHTOOL_A_STRINGSETS_STRINGSET+`` | nested | one string set | | |
340 | +-+-+-----------------------------------+--------+-----------------------+ | |
341 | | | | ``ETHTOOL_A_STRINGSET_ID`` | u32 | set id | | |
342 | +-+-+-----------------------------------+--------+-----------------------+ | |
343 | | | | ``ETHTOOL_A_STRINGSET_COUNT`` | u32 | number of strings | | |
344 | +-+-+-----------------------------------+--------+-----------------------+ | |
345 | | | | ``ETHTOOL_A_STRINGSET_STRINGS`` | nested | array of strings | | |
346 | +-+-+-+---------------------------------+--------+-----------------------+ | |
347 | | | | | ``ETHTOOL_A_STRINGS_STRING+`` | nested | one string | | |
348 | +-+-+-+-+-------------------------------+--------+-----------------------+ | |
349 | | | | | | ``ETHTOOL_A_STRING_INDEX`` | u32 | string index | | |
350 | +-+-+-+-+-------------------------------+--------+-----------------------+ | |
351 | | | | | | ``ETHTOOL_A_STRING_VALUE`` | string | string value | | |
352 | +-+-+-+-+-------------------------------+--------+-----------------------+ | |
353 | | ``ETHTOOL_A_STRSET_COUNTS_ONLY`` | flag | return only counts | | |
354 | +---------------------------------------+--------+-----------------------+ | |
355 | ||
356 | Device identification in request header is optional. Depending on its presence | |
357 | a and ``NLM_F_DUMP`` flag, there are three type of ``STRSET_GET`` requests: | |
358 | ||
359 | - no ``NLM_F_DUMP,`` no device: get "global" stringsets | |
360 | - no ``NLM_F_DUMP``, with device: get string sets related to the device | |
361 | - ``NLM_F_DUMP``, no device: get device related string sets for all devices | |
362 | ||
363 | If there is no ``ETHTOOL_A_STRSET_STRINGSETS`` array, all string sets of | |
364 | requested type are returned, otherwise only those specified in the request. | |
365 | Flag ``ETHTOOL_A_STRSET_COUNTS_ONLY`` tells kernel to only return string | |
366 | counts of the sets, not the actual strings. | |
367 | ||
368 | ||
459e0b81 MK |
369 | LINKINFO_GET |
370 | ============ | |
371 | ||
372 | Requests link settings as provided by ``ETHTOOL_GLINKSETTINGS`` except for | |
373 | link modes and autonegotiation related information. The request does not use | |
374 | any attributes. | |
375 | ||
376 | Request contents: | |
377 | ||
378 | ==================================== ====== ========================== | |
379 | ``ETHTOOL_A_LINKINFO_HEADER`` nested request header | |
380 | ==================================== ====== ========================== | |
381 | ||
382 | Kernel response contents: | |
383 | ||
384 | ==================================== ====== ========================== | |
385 | ``ETHTOOL_A_LINKINFO_HEADER`` nested reply header | |
386 | ``ETHTOOL_A_LINKINFO_PORT`` u8 physical port | |
387 | ``ETHTOOL_A_LINKINFO_PHYADDR`` u8 phy MDIO address | |
388 | ``ETHTOOL_A_LINKINFO_TP_MDIX`` u8 MDI(-X) status | |
389 | ``ETHTOOL_A_LINKINFO_TP_MDIX_CTRL`` u8 MDI(-X) control | |
390 | ``ETHTOOL_A_LINKINFO_TRANSCEIVER`` u8 transceiver | |
391 | ==================================== ====== ========================== | |
392 | ||
393 | Attributes and their values have the same meaning as matching members of the | |
394 | corresponding ioctl structures. | |
395 | ||
396 | ``LINKINFO_GET`` allows dump requests (kernel returns reply message for all | |
397 | devices supporting the request). | |
398 | ||
399 | ||
a53f3d41 MK |
400 | LINKINFO_SET |
401 | ============ | |
402 | ||
403 | ``LINKINFO_SET`` request allows setting some of the attributes reported by | |
404 | ``LINKINFO_GET``. | |
405 | ||
406 | Request contents: | |
407 | ||
408 | ==================================== ====== ========================== | |
409 | ``ETHTOOL_A_LINKINFO_HEADER`` nested request header | |
410 | ``ETHTOOL_A_LINKINFO_PORT`` u8 physical port | |
411 | ``ETHTOOL_A_LINKINFO_PHYADDR`` u8 phy MDIO address | |
412 | ``ETHTOOL_A_LINKINFO_TP_MDIX_CTRL`` u8 MDI(-X) control | |
413 | ==================================== ====== ========================== | |
414 | ||
415 | MDI(-X) status and transceiver cannot be set, request with the corresponding | |
416 | attributes is rejected. | |
417 | ||
418 | ||
f625aa9b MK |
419 | LINKMODES_GET |
420 | ============= | |
421 | ||
422 | Requests link modes (supported, advertised and peer advertised) and related | |
423 | information (autonegotiation status, link speed and duplex) as provided by | |
424 | ``ETHTOOL_GLINKSETTINGS``. The request does not use any attributes. | |
425 | ||
426 | Request contents: | |
427 | ||
428 | ==================================== ====== ========================== | |
429 | ``ETHTOOL_A_LINKMODES_HEADER`` nested request header | |
430 | ==================================== ====== ========================== | |
431 | ||
432 | Kernel response contents: | |
433 | ||
bdbdac76 OR |
434 | ========================================== ====== ========================== |
435 | ``ETHTOOL_A_LINKMODES_HEADER`` nested reply header | |
436 | ``ETHTOOL_A_LINKMODES_AUTONEG`` u8 autonegotiation status | |
437 | ``ETHTOOL_A_LINKMODES_OURS`` bitset advertised link modes | |
438 | ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes | |
439 | ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s) | |
440 | ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode | |
441 | ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode | |
442 | ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_STATE`` u8 Master/slave port state | |
0c3e10cb | 443 | ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching |
bdbdac76 | 444 | ========================================== ====== ========================== |
f625aa9b MK |
445 | |
446 | For ``ETHTOOL_A_LINKMODES_OURS``, value represents advertised modes and mask | |
447 | represents supported modes. ``ETHTOOL_A_LINKMODES_PEER`` in the reply is a bit | |
448 | list. | |
449 | ||
450 | ``LINKMODES_GET`` allows dump requests (kernel returns reply messages for all | |
451 | devices supporting the request). | |
452 | ||
453 | ||
bfbcfe20 MK |
454 | LINKMODES_SET |
455 | ============= | |
456 | ||
457 | Request contents: | |
458 | ||
bdbdac76 OR |
459 | ========================================== ====== ========================== |
460 | ``ETHTOOL_A_LINKMODES_HEADER`` nested request header | |
461 | ``ETHTOOL_A_LINKMODES_AUTONEG`` u8 autonegotiation status | |
462 | ``ETHTOOL_A_LINKMODES_OURS`` bitset advertised link modes | |
463 | ``ETHTOOL_A_LINKMODES_PEER`` bitset partner link modes | |
464 | ``ETHTOOL_A_LINKMODES_SPEED`` u32 link speed (Mb/s) | |
465 | ``ETHTOOL_A_LINKMODES_DUPLEX`` u8 duplex mode | |
466 | ``ETHTOOL_A_LINKMODES_MASTER_SLAVE_CFG`` u8 Master/slave port mode | |
0c3e10cb | 467 | ``ETHTOOL_A_LINKMODES_RATE_MATCHING`` u8 PHY rate matching |
012ce4dd | 468 | ``ETHTOOL_A_LINKMODES_LANES`` u32 lanes |
bdbdac76 | 469 | ========================================== ====== ========================== |
bfbcfe20 MK |
470 | |
471 | ``ETHTOOL_A_LINKMODES_OURS`` bit set allows setting advertised link modes. If | |
472 | autonegotiation is on (either set now or kept from before), advertised modes | |
473 | are not changed (no ``ETHTOOL_A_LINKMODES_OURS`` attribute) and at least one | |
012ce4dd DR |
474 | of speed, duplex and lanes is specified, kernel adjusts advertised modes to all |
475 | supported modes matching speed, duplex, lanes or all (whatever is specified). | |
476 | This autoselection is done on ethtool side with ioctl interface, netlink | |
477 | interface is supposed to allow requesting changes without knowing what exactly | |
478 | kernel supports. | |
bfbcfe20 MK |
479 | |
480 | ||
3d2b847f MK |
481 | LINKSTATE_GET |
482 | ============= | |
483 | ||
e120c801 AC |
484 | Requests link state information. Link up/down flag (as provided by |
485 | ``ETHTOOL_GLINK`` ioctl command) is provided. Optionally, extended state might | |
486 | be provided as well. In general, extended state describes reasons for why a port | |
487 | is down, or why it operates in some non-obvious mode. This request does not have | |
488 | any attributes. | |
3d2b847f MK |
489 | |
490 | Request contents: | |
491 | ||
492 | ==================================== ====== ========================== | |
493 | ``ETHTOOL_A_LINKSTATE_HEADER`` nested request header | |
494 | ==================================== ====== ========================== | |
495 | ||
496 | Kernel response contents: | |
497 | ||
80660219 | 498 | ==================================== ====== ============================ |
3d2b847f MK |
499 | ``ETHTOOL_A_LINKSTATE_HEADER`` nested reply header |
500 | ``ETHTOOL_A_LINKSTATE_LINK`` bool link state (up/down) | |
80660219 OR |
501 | ``ETHTOOL_A_LINKSTATE_SQI`` u32 Current Signal Quality Index |
502 | ``ETHTOOL_A_LINKSTATE_SQI_MAX`` u32 Max support SQI value | |
e120c801 AC |
503 | ``ETHTOOL_A_LINKSTATE_EXT_STATE`` u8 link extended state |
504 | ``ETHTOOL_A_LINKSTATE_EXT_SUBSTATE`` u8 link extended substate | |
9a0f830f | 505 | ``ETHTOOL_A_LINKSTATE_EXT_DOWN_CNT`` u32 count of link down events |
80660219 | 506 | ==================================== ====== ============================ |
3d2b847f MK |
507 | |
508 | For most NIC drivers, the value of ``ETHTOOL_A_LINKSTATE_LINK`` returns | |
509 | carrier flag provided by ``netif_carrier_ok()`` but there are drivers which | |
510 | define their own handler. | |
511 | ||
e120c801 AC |
512 | ``ETHTOOL_A_LINKSTATE_EXT_STATE`` and ``ETHTOOL_A_LINKSTATE_EXT_SUBSTATE`` are |
513 | optional values. ethtool core can provide either both | |
514 | ``ETHTOOL_A_LINKSTATE_EXT_STATE`` and ``ETHTOOL_A_LINKSTATE_EXT_SUBSTATE``, | |
515 | or only ``ETHTOOL_A_LINKSTATE_EXT_STATE``, or none of them. | |
516 | ||
3d2b847f MK |
517 | ``LINKSTATE_GET`` allows dump requests (kernel returns reply messages for all |
518 | devices supporting the request). | |
519 | ||
520 | ||
e120c801 AC |
521 | Link extended states: |
522 | ||
523 | ================================================ ============================================ | |
524 | ``ETHTOOL_LINK_EXT_STATE_AUTONEG`` States relating to the autonegotiation or | |
525 | issues therein | |
526 | ||
527 | ``ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE`` Failure during link training | |
528 | ||
529 | ``ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH`` Logical mismatch in physical coding sublayer | |
530 | or forward error correction sublayer | |
531 | ||
532 | ``ETHTOOL_LINK_EXT_STATE_BAD_SIGNAL_INTEGRITY`` Signal integrity issues | |
533 | ||
534 | ``ETHTOOL_LINK_EXT_STATE_NO_CABLE`` No cable connected | |
535 | ||
536 | ``ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE`` Failure is related to cable, | |
537 | e.g., unsupported cable | |
538 | ||
539 | ``ETHTOOL_LINK_EXT_STATE_EEPROM_ISSUE`` Failure is related to EEPROM, e.g., failure | |
540 | during reading or parsing the data | |
541 | ||
542 | ``ETHTOOL_LINK_EXT_STATE_CALIBRATION_FAILURE`` Failure during calibration algorithm | |
543 | ||
544 | ``ETHTOOL_LINK_EXT_STATE_POWER_BUDGET_EXCEEDED`` The hardware is not able to provide the | |
545 | power required from cable or module | |
546 | ||
547 | ``ETHTOOL_LINK_EXT_STATE_OVERHEAT`` The module is overheated | |
3dfb5112 IS |
548 | |
549 | ``ETHTOOL_LINK_EXT_STATE_MODULE`` Transceiver module issue | |
1a4d6816 | 550 | ================================================ ============================================ |
e120c801 AC |
551 | |
552 | Link extended substates: | |
553 | ||
554 | Autoneg substates: | |
555 | ||
1a4d6816 | 556 | =============================================================== ================================ |
e120c801 AC |
557 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED`` Peer side is down |
558 | ||
559 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_ACK_NOT_RECEIVED`` Ack not received from peer side | |
560 | ||
561 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_NEXT_PAGE_EXCHANGE_FAILED`` Next page exchange failed | |
562 | ||
563 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED_FORCE_MODE`` Peer side is down during force | |
564 | mode or there is no agreement of | |
565 | speed | |
566 | ||
567 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_FEC_MISMATCH_DURING_OVERRIDE`` Forward error correction modes | |
568 | in both sides are mismatched | |
569 | ||
570 | ``ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_HCD`` No Highest Common Denominator | |
1a4d6816 | 571 | =============================================================== ================================ |
e120c801 AC |
572 | |
573 | Link training substates: | |
574 | ||
1a4d6816 | 575 | =========================================================================== ==================== |
e120c801 AC |
576 | ``ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_FRAME_LOCK_NOT_ACQUIRED`` Frames were not |
577 | recognized, the | |
578 | lock failed | |
579 | ||
580 | ``ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_LINK_INHIBIT_TIMEOUT`` The lock did not | |
581 | occur before | |
582 | timeout | |
583 | ||
584 | ``ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_LINK_PARTNER_DID_NOT_SET_RECEIVER_READY`` Peer side did not | |
585 | send ready signal | |
586 | after training | |
587 | process | |
588 | ||
589 | ``ETHTOOL_LINK_EXT_SUBSTATE_LT_REMOTE_FAULT`` Remote side is not | |
590 | ready yet | |
1a4d6816 | 591 | =========================================================================== ==================== |
e120c801 AC |
592 | |
593 | Link logical mismatch substates: | |
594 | ||
1a4d6816 | 595 | ================================================================ =============================== |
e120c801 AC |
596 | ``ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_ACQUIRE_BLOCK_LOCK`` Physical coding sublayer was |
597 | not locked in first phase - | |
598 | block lock | |
599 | ||
600 | ``ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_ACQUIRE_AM_LOCK`` Physical coding sublayer was | |
601 | not locked in second phase - | |
602 | alignment markers lock | |
603 | ||
604 | ``ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_GET_ALIGN_STATUS`` Physical coding sublayer did | |
605 | not get align status | |
606 | ||
607 | ``ETHTOOL_LINK_EXT_SUBSTATE_LLM_FC_FEC_IS_NOT_LOCKED`` FC forward error correction is | |
608 | not locked | |
609 | ||
610 | ``ETHTOOL_LINK_EXT_SUBSTATE_LLM_RS_FEC_IS_NOT_LOCKED`` RS forward error correction is | |
611 | not locked | |
1a4d6816 | 612 | ================================================================ =============================== |
e120c801 AC |
613 | |
614 | Bad signal integrity substates: | |
615 | ||
616 | ================================================================= ============================= | |
617 | ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_LARGE_NUMBER_OF_PHYSICAL_ERRORS`` Large number of physical | |
618 | errors | |
619 | ||
620 | ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_UNSUPPORTED_RATE`` The system attempted to | |
621 | operate the cable at a rate | |
622 | that is not formally | |
623 | supported, which led to | |
624 | signal integrity issues | |
958ab281 GH |
625 | |
626 | ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_SERDES_REFERENCE_CLOCK_LOST`` The external clock signal for | |
627 | SerDes is too weak or | |
628 | unavailable. | |
629 | ||
630 | ``ETHTOOL_LINK_EXT_SUBSTATE_BSI_SERDES_ALOS`` The received signal for | |
631 | SerDes is too weak because | |
632 | analog loss of signal. | |
e120c801 AC |
633 | ================================================================= ============================= |
634 | ||
635 | Cable issue substates: | |
636 | ||
1a4d6816 | 637 | =================================================== ============================================ |
e120c801 AC |
638 | ``ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE`` Unsupported cable |
639 | ||
640 | ``ETHTOOL_LINK_EXT_SUBSTATE_CI_CABLE_TEST_FAILURE`` Cable test failure | |
1a4d6816 | 641 | =================================================== ============================================ |
3dfb5112 IS |
642 | |
643 | Transceiver module issue substates: | |
644 | ||
645 | =================================================== ============================================ | |
646 | ``ETHTOOL_LINK_EXT_SUBSTATE_MODULE_CMIS_NOT_READY`` The CMIS Module State Machine did not reach | |
647 | the ModuleReady state. For example, if the | |
648 | module is stuck at ModuleFault state | |
649 | =================================================== ============================================ | |
e120c801 | 650 | |
6a94b8cc MK |
651 | DEBUG_GET |
652 | ========= | |
653 | ||
654 | Requests debugging settings of a device. At the moment, only message mask is | |
655 | provided. | |
656 | ||
657 | Request contents: | |
658 | ||
659 | ==================================== ====== ========================== | |
660 | ``ETHTOOL_A_DEBUG_HEADER`` nested request header | |
661 | ==================================== ====== ========================== | |
662 | ||
663 | Kernel response contents: | |
664 | ||
665 | ==================================== ====== ========================== | |
666 | ``ETHTOOL_A_DEBUG_HEADER`` nested reply header | |
667 | ``ETHTOOL_A_DEBUG_MSGMASK`` bitset message mask | |
668 | ==================================== ====== ========================== | |
669 | ||
670 | The message mask (``ETHTOOL_A_DEBUG_MSGMASK``) is equal to message level as | |
671 | provided by ``ETHTOOL_GMSGLVL`` and set by ``ETHTOOL_SMSGLVL`` in ioctl | |
672 | interface. While it is called message level there for historical reasons, most | |
673 | drivers and almost all newer drivers use it as a mask of enabled message | |
674 | classes (represented by ``NETIF_MSG_*`` constants); therefore netlink | |
675 | interface follows its actual use in practice. | |
676 | ||
677 | ``DEBUG_GET`` allows dump requests (kernel returns reply messages for all | |
678 | devices supporting the request). | |
679 | ||
680 | ||
e54d04e3 MK |
681 | DEBUG_SET |
682 | ========= | |
683 | ||
684 | Set or update debugging settings of a device. At the moment, only message mask | |
685 | is supported. | |
686 | ||
687 | Request contents: | |
688 | ||
689 | ==================================== ====== ========================== | |
690 | ``ETHTOOL_A_DEBUG_HEADER`` nested request header | |
691 | ``ETHTOOL_A_DEBUG_MSGMASK`` bitset message mask | |
692 | ==================================== ====== ========================== | |
693 | ||
694 | ``ETHTOOL_A_DEBUG_MSGMASK`` bit set allows setting or modifying mask of | |
695 | enabled debugging message types for the device. | |
696 | ||
697 | ||
51ea22b0 MK |
698 | WOL_GET |
699 | ======= | |
700 | ||
701 | Query device wake-on-lan settings. Unlike most "GET" type requests, | |
702 | ``ETHTOOL_MSG_WOL_GET`` requires (netns) ``CAP_NET_ADMIN`` privileges as it | |
703 | (potentially) provides SecureOn(tm) password which is confidential. | |
704 | ||
705 | Request contents: | |
706 | ||
707 | ==================================== ====== ========================== | |
708 | ``ETHTOOL_A_WOL_HEADER`` nested request header | |
709 | ==================================== ====== ========================== | |
710 | ||
711 | Kernel response contents: | |
712 | ||
713 | ==================================== ====== ========================== | |
714 | ``ETHTOOL_A_WOL_HEADER`` nested reply header | |
715 | ``ETHTOOL_A_WOL_MODES`` bitset mask of enabled WoL modes | |
716 | ``ETHTOOL_A_WOL_SOPASS`` binary SecureOn(tm) password | |
717 | ==================================== ====== ========================== | |
718 | ||
719 | In reply, ``ETHTOOL_A_WOL_MODES`` mask consists of modes supported by the | |
720 | device, value of modes which are enabled. ``ETHTOOL_A_WOL_SOPASS`` is only | |
721 | included in reply if ``WAKE_MAGICSECURE`` mode is supported. | |
722 | ||
723 | ||
8d425b19 MK |
724 | WOL_SET |
725 | ======= | |
726 | ||
727 | Set or update wake-on-lan settings. | |
728 | ||
729 | Request contents: | |
730 | ||
731 | ==================================== ====== ========================== | |
732 | ``ETHTOOL_A_WOL_HEADER`` nested request header | |
733 | ``ETHTOOL_A_WOL_MODES`` bitset enabled WoL modes | |
734 | ``ETHTOOL_A_WOL_SOPASS`` binary SecureOn(tm) password | |
735 | ==================================== ====== ========================== | |
736 | ||
737 | ``ETHTOOL_A_WOL_SOPASS`` is only allowed for devices supporting | |
738 | ``WAKE_MAGICSECURE`` mode. | |
739 | ||
740 | ||
0524399d MK |
741 | FEATURES_GET |
742 | ============ | |
743 | ||
744 | Gets netdev features like ``ETHTOOL_GFEATURES`` ioctl request. | |
745 | ||
746 | Request contents: | |
747 | ||
748 | ==================================== ====== ========================== | |
749 | ``ETHTOOL_A_FEATURES_HEADER`` nested request header | |
750 | ==================================== ====== ========================== | |
751 | ||
752 | Kernel response contents: | |
753 | ||
754 | ==================================== ====== ========================== | |
755 | ``ETHTOOL_A_FEATURES_HEADER`` nested reply header | |
756 | ``ETHTOOL_A_FEATURES_HW`` bitset dev->hw_features | |
757 | ``ETHTOOL_A_FEATURES_WANTED`` bitset dev->wanted_features | |
758 | ``ETHTOOL_A_FEATURES_ACTIVE`` bitset dev->features | |
759 | ``ETHTOOL_A_FEATURES_NOCHANGE`` bitset NETIF_F_NEVER_CHANGE | |
760 | ==================================== ====== ========================== | |
761 | ||
762 | Bitmaps in kernel response have the same meaning as bitmaps used in ioctl | |
763 | interference but attribute names are different (they are based on | |
764 | corresponding members of struct net_device). Legacy "flags" are not provided, | |
765 | if userspace needs them (most likely only ethtool for backward compatibility), | |
766 | it can calculate their values from related feature bits itself. | |
767 | ETHA_FEATURES_HW uses mask consisting of all features recognized by kernel (to | |
768 | provide all names when using verbose bitmap format), the other three use no | |
769 | mask (simple bit lists). | |
770 | ||
771 | ||
0980bfcd MK |
772 | FEATURES_SET |
773 | ============ | |
774 | ||
775 | Request to set netdev features like ``ETHTOOL_SFEATURES`` ioctl request. | |
776 | ||
777 | Request contents: | |
778 | ||
779 | ==================================== ====== ========================== | |
780 | ``ETHTOOL_A_FEATURES_HEADER`` nested request header | |
781 | ``ETHTOOL_A_FEATURES_WANTED`` bitset requested features | |
782 | ==================================== ====== ========================== | |
783 | ||
784 | Kernel response contents: | |
785 | ||
786 | ==================================== ====== ========================== | |
787 | ``ETHTOOL_A_FEATURES_HEADER`` nested reply header | |
788 | ``ETHTOOL_A_FEATURES_WANTED`` bitset diff wanted vs. result | |
789 | ``ETHTOOL_A_FEATURES_ACTIVE`` bitset diff old vs. new active | |
790 | ==================================== ====== ========================== | |
791 | ||
a266ef69 | 792 | Request contains only one bitset which can be either value/mask pair (request |
0980bfcd MK |
793 | to change specific feature bits and leave the rest) or only a value (request |
794 | to set all features to specified set). | |
795 | ||
796 | As request is subject to netdev_change_features() sanity checks, optional | |
797 | kernel reply (can be suppressed by ``ETHTOOL_FLAG_OMIT_REPLY`` flag in request | |
798 | header) informs client about the actual result. ``ETHTOOL_A_FEATURES_WANTED`` | |
799 | reports the difference between client request and actual result: mask consists | |
800 | of bits which differ between requested features and result (dev->features | |
801 | after the operation), value consists of values of these bits in the request | |
802 | (i.e. negated values from resulting features). ``ETHTOOL_A_FEATURES_ACTIVE`` | |
803 | reports the difference between old and new dev->features: mask consists of | |
804 | bits which have changed, values are their values in new dev->features (after | |
805 | the operation). | |
806 | ||
9c6451ef MK |
807 | ``ETHTOOL_MSG_FEATURES_NTF`` notification is sent not only if device features |
808 | are modified using ``ETHTOOL_MSG_FEATURES_SET`` request or on of ethtool ioctl | |
809 | request but also each time features are modified with netdev_update_features() | |
810 | or netdev_change_features(). | |
811 | ||
0980bfcd | 812 | |
e16c3386 MK |
813 | PRIVFLAGS_GET |
814 | ============= | |
815 | ||
816 | Gets private flags like ``ETHTOOL_GPFLAGS`` ioctl request. | |
817 | ||
818 | Request contents: | |
819 | ||
820 | ==================================== ====== ========================== | |
821 | ``ETHTOOL_A_PRIVFLAGS_HEADER`` nested request header | |
822 | ==================================== ====== ========================== | |
823 | ||
824 | Kernel response contents: | |
825 | ||
826 | ==================================== ====== ========================== | |
827 | ``ETHTOOL_A_PRIVFLAGS_HEADER`` nested reply header | |
828 | ``ETHTOOL_A_PRIVFLAGS_FLAGS`` bitset private flags | |
829 | ==================================== ====== ========================== | |
830 | ||
831 | ``ETHTOOL_A_PRIVFLAGS_FLAGS`` is a bitset with values of device private flags. | |
832 | These flags are defined by driver, their number and names (and also meaning) | |
833 | are device dependent. For compact bitset format, names can be retrieved as | |
834 | ``ETH_SS_PRIV_FLAGS`` string set. If verbose bitset format is requested, | |
835 | response uses all private flags supported by the device as mask so that client | |
836 | gets the full information without having to fetch the string set with names. | |
837 | ||
838 | ||
f265d799 MK |
839 | PRIVFLAGS_SET |
840 | ============= | |
841 | ||
842 | Sets or modifies values of device private flags like ``ETHTOOL_SPFLAGS`` | |
843 | ioctl request. | |
844 | ||
845 | Request contents: | |
846 | ||
847 | ==================================== ====== ========================== | |
848 | ``ETHTOOL_A_PRIVFLAGS_HEADER`` nested request header | |
849 | ``ETHTOOL_A_PRIVFLAGS_FLAGS`` bitset private flags | |
850 | ==================================== ====== ========================== | |
851 | ||
852 | ``ETHTOOL_A_PRIVFLAGS_FLAGS`` can either set the whole set of private flags or | |
853 | modify only values of some of them. | |
854 | ||
855 | ||
e4a1717b MK |
856 | RINGS_GET |
857 | ========= | |
858 | ||
859 | Gets ring sizes like ``ETHTOOL_GRINGPARAM`` ioctl request. | |
860 | ||
861 | Request contents: | |
862 | ||
863 | ==================================== ====== ========================== | |
864 | ``ETHTOOL_A_RINGS_HEADER`` nested request header | |
865 | ==================================== ====== ========================== | |
866 | ||
867 | Kernel response contents: | |
868 | ||
233eb4e7 SA |
869 | ======================================= ====== =========================== |
870 | ``ETHTOOL_A_RINGS_HEADER`` nested reply header | |
871 | ``ETHTOOL_A_RINGS_RX_MAX`` u32 max size of RX ring | |
872 | ``ETHTOOL_A_RINGS_RX_MINI_MAX`` u32 max size of RX mini ring | |
873 | ``ETHTOOL_A_RINGS_RX_JUMBO_MAX`` u32 max size of RX jumbo ring | |
874 | ``ETHTOOL_A_RINGS_TX_MAX`` u32 max size of TX ring | |
875 | ``ETHTOOL_A_RINGS_RX`` u32 size of RX ring | |
876 | ``ETHTOOL_A_RINGS_RX_MINI`` u32 size of RX mini ring | |
877 | ``ETHTOOL_A_RINGS_RX_JUMBO`` u32 size of RX jumbo ring | |
878 | ``ETHTOOL_A_RINGS_TX`` u32 size of TX ring | |
879 | ``ETHTOOL_A_RINGS_RX_BUF_LEN`` u32 size of buffers on the ring | |
880 | ``ETHTOOL_A_RINGS_TCP_DATA_SPLIT`` u8 TCP header / data split | |
881 | ``ETHTOOL_A_RINGS_CQE_SIZE`` u32 Size of TX/RX CQE | |
882 | ``ETHTOOL_A_RINGS_TX_PUSH`` u8 flag of TX Push mode | |
883 | ``ETHTOOL_A_RINGS_RX_PUSH`` u8 flag of RX Push mode | |
884 | ``ETHTOOL_A_RINGS_TX_PUSH_BUF_LEN`` u32 size of TX push buffer | |
885 | ``ETHTOOL_A_RINGS_TX_PUSH_BUF_LEN_MAX`` u32 max size of TX push buffer | |
886 | ======================================= ====== =========================== | |
e4a1717b | 887 | |
9690ae60 JK |
888 | ``ETHTOOL_A_RINGS_TCP_DATA_SPLIT`` indicates whether the device is usable with |
889 | page-flipping TCP zero-copy receive (``getsockopt(TCP_ZEROCOPY_RECEIVE)``). | |
890 | If enabled the device is configured to place frame headers and data into | |
891 | separate buffers. The device configuration must make it possible to receive | |
892 | full memory pages of data, for example because MTU is high enough or through | |
893 | HW-GRO. | |
894 | ||
5b4e9a7a SN |
895 | ``ETHTOOL_A_RINGS_[RX|TX]_PUSH`` flag is used to enable descriptor fast |
896 | path to send or receive packets. In ordinary path, driver fills descriptors in DRAM and | |
4dc84c06 JW |
897 | notifies NIC hardware. In fast path, driver pushes descriptors to the device |
898 | through MMIO writes, thus reducing the latency. However, enabling this feature | |
899 | may increase the CPU cost. Drivers may enforce additional per-packet | |
900 | eligibility checks (e.g. on packet size). | |
e4a1717b | 901 | |
233eb4e7 SA |
902 | ``ETHTOOL_A_RINGS_TX_PUSH_BUF_LEN`` specifies the maximum number of bytes of a |
903 | transmitted packet a driver can push directly to the underlying device | |
904 | ('push' mode). Pushing some of the payload bytes to the device has the | |
905 | advantages of reducing latency for small packets by avoiding DMA mapping (same | |
906 | as ``ETHTOOL_A_RINGS_TX_PUSH`` parameter) as well as allowing the underlying | |
907 | device to process packet headers ahead of fetching its payload. | |
908 | This can help the device to make fast actions based on the packet's headers. | |
909 | This is similar to the "tx-copybreak" parameter, which copies the packet to a | |
910 | preallocated DMA memory area instead of mapping new memory. However, | |
911 | tx-push-buff parameter copies the packet directly to the device to allow the | |
912 | device to take faster actions on the packet. | |
913 | ||
2fc2929e MK |
914 | RINGS_SET |
915 | ========= | |
916 | ||
917 | Sets ring sizes like ``ETHTOOL_SRINGPARAM`` ioctl request. | |
918 | ||
919 | Request contents: | |
920 | ||
0b70c256 | 921 | ==================================== ====== =========================== |
2fc2929e MK |
922 | ``ETHTOOL_A_RINGS_HEADER`` nested reply header |
923 | ``ETHTOOL_A_RINGS_RX`` u32 size of RX ring | |
924 | ``ETHTOOL_A_RINGS_RX_MINI`` u32 size of RX mini ring | |
925 | ``ETHTOOL_A_RINGS_RX_JUMBO`` u32 size of RX jumbo ring | |
926 | ``ETHTOOL_A_RINGS_TX`` u32 size of TX ring | |
0b70c256 | 927 | ``ETHTOOL_A_RINGS_RX_BUF_LEN`` u32 size of buffers on the ring |
1241e329 | 928 | ``ETHTOOL_A_RINGS_CQE_SIZE`` u32 Size of TX/RX CQE |
4dc84c06 | 929 | ``ETHTOOL_A_RINGS_TX_PUSH`` u8 flag of TX Push mode |
5b4e9a7a | 930 | ``ETHTOOL_A_RINGS_RX_PUSH`` u8 flag of RX Push mode |
233eb4e7 | 931 | ``ETHTOOL_A_RINGS_TX_PUSH_BUF_LEN`` u32 size of TX push buffer |
0b70c256 | 932 | ==================================== ====== =========================== |
2fc2929e MK |
933 | |
934 | Kernel checks that requested ring sizes do not exceed limits reported by | |
935 | driver. Driver may impose additional constraints and may not suspport all | |
936 | attributes. | |
937 | ||
938 | ||
1241e329 SS |
939 | ``ETHTOOL_A_RINGS_CQE_SIZE`` specifies the completion queue event size. |
940 | Completion queue events(CQE) are the events posted by NIC to indicate the | |
941 | completion status of a packet when the packet is sent(like send success or | |
942 | error) or received(like pointers to packet fragments). The CQE size parameter | |
943 | enables to modify the CQE size other than default size if NIC supports it. | |
944 | A bigger CQE can have more receive buffer pointers inturn NIC can transfer | |
945 | a bigger frame from wire. Based on the NIC hardware, the overall completion | |
946 | queue size can be adjusted in the driver if CQE size is modified. | |
947 | ||
0c84979c MK |
948 | CHANNELS_GET |
949 | ============ | |
950 | ||
951 | Gets channel counts like ``ETHTOOL_GCHANNELS`` ioctl request. | |
952 | ||
953 | Request contents: | |
954 | ||
955 | ==================================== ====== ========================== | |
956 | ``ETHTOOL_A_CHANNELS_HEADER`` nested request header | |
957 | ==================================== ====== ========================== | |
958 | ||
959 | Kernel response contents: | |
960 | ||
961 | ===================================== ====== ========================== | |
962 | ``ETHTOOL_A_CHANNELS_HEADER`` nested reply header | |
963 | ``ETHTOOL_A_CHANNELS_RX_MAX`` u32 max receive channels | |
964 | ``ETHTOOL_A_CHANNELS_TX_MAX`` u32 max transmit channels | |
965 | ``ETHTOOL_A_CHANNELS_OTHER_MAX`` u32 max other channels | |
966 | ``ETHTOOL_A_CHANNELS_COMBINED_MAX`` u32 max combined channels | |
967 | ``ETHTOOL_A_CHANNELS_RX_COUNT`` u32 receive channel count | |
968 | ``ETHTOOL_A_CHANNELS_TX_COUNT`` u32 transmit channel count | |
969 | ``ETHTOOL_A_CHANNELS_OTHER_COUNT`` u32 other channel count | |
970 | ``ETHTOOL_A_CHANNELS_COMBINED_COUNT`` u32 combined channel count | |
971 | ===================================== ====== ========================== | |
972 | ||
973 | ||
e19c591e MK |
974 | CHANNELS_SET |
975 | ============ | |
976 | ||
977 | Sets channel counts like ``ETHTOOL_SCHANNELS`` ioctl request. | |
978 | ||
979 | Request contents: | |
980 | ||
981 | ===================================== ====== ========================== | |
982 | ``ETHTOOL_A_CHANNELS_HEADER`` nested request header | |
983 | ``ETHTOOL_A_CHANNELS_RX_COUNT`` u32 receive channel count | |
984 | ``ETHTOOL_A_CHANNELS_TX_COUNT`` u32 transmit channel count | |
985 | ``ETHTOOL_A_CHANNELS_OTHER_COUNT`` u32 other channel count | |
986 | ``ETHTOOL_A_CHANNELS_COMBINED_COUNT`` u32 combined channel count | |
987 | ===================================== ====== ========================== | |
988 | ||
989 | Kernel checks that requested channel counts do not exceed limits reported by | |
990 | driver. Driver may impose additional constraints and may not suspport all | |
991 | attributes. | |
992 | ||
993 | ||
21727545 MK |
994 | COALESCE_GET |
995 | ============ | |
996 | ||
997 | Gets coalescing parameters like ``ETHTOOL_GCOALESCE`` ioctl request. | |
998 | ||
999 | Request contents: | |
1000 | ||
1001 | ==================================== ====== ========================== | |
1002 | ``ETHTOOL_A_COALESCE_HEADER`` nested request header | |
1003 | ==================================== ====== ========================== | |
1004 | ||
1005 | Kernel response contents: | |
1006 | ||
1007 | =========================================== ====== ======================= | |
1008 | ``ETHTOOL_A_COALESCE_HEADER`` nested reply header | |
1009 | ``ETHTOOL_A_COALESCE_RX_USECS`` u32 delay (us), normal Rx | |
1010 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES`` u32 max packets, normal Rx | |
1011 | ``ETHTOOL_A_COALESCE_RX_USECS_IRQ`` u32 delay (us), Rx in IRQ | |
1012 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ`` u32 max packets, Rx in IRQ | |
1013 | ``ETHTOOL_A_COALESCE_TX_USECS`` u32 delay (us), normal Tx | |
1014 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES`` u32 max packets, normal Tx | |
1015 | ``ETHTOOL_A_COALESCE_TX_USECS_IRQ`` u32 delay (us), Tx in IRQ | |
1016 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ`` u32 IRQ packets, Tx in IRQ | |
1017 | ``ETHTOOL_A_COALESCE_STATS_BLOCK_USECS`` u32 delay of stats update | |
1018 | ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX`` bool adaptive Rx coalesce | |
1019 | ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX`` bool adaptive Tx coalesce | |
1020 | ``ETHTOOL_A_COALESCE_PKT_RATE_LOW`` u32 threshold for low rate | |
1021 | ``ETHTOOL_A_COALESCE_RX_USECS_LOW`` u32 delay (us), low Rx | |
1022 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW`` u32 max packets, low Rx | |
1023 | ``ETHTOOL_A_COALESCE_TX_USECS_LOW`` u32 delay (us), low Tx | |
1024 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW`` u32 max packets, low Tx | |
1025 | ``ETHTOOL_A_COALESCE_PKT_RATE_HIGH`` u32 threshold for high rate | |
1026 | ``ETHTOOL_A_COALESCE_RX_USECS_HIGH`` u32 delay (us), high Rx | |
1027 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH`` u32 max packets, high Rx | |
1028 | ``ETHTOOL_A_COALESCE_TX_USECS_HIGH`` u32 delay (us), high Tx | |
1029 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH`` u32 max packets, high Tx | |
1030 | ``ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL`` u32 rate sampling interval | |
029ee6b1 YM |
1031 | ``ETHTOOL_A_COALESCE_USE_CQE_TX`` bool timer reset mode, Tx |
1032 | ``ETHTOOL_A_COALESCE_USE_CQE_RX`` bool timer reset mode, Rx | |
31de2842 DP |
1033 | ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES`` u32 max aggr size, Tx |
1034 | ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES`` u32 max aggr packets, Tx | |
1035 | ``ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS`` u32 time (us), aggr, Tx | |
21727545 MK |
1036 | =========================================== ====== ======================= |
1037 | ||
1038 | Attributes are only included in reply if their value is not zero or the | |
1039 | corresponding bit in ``ethtool_ops::supported_coalesce_params`` is set (i.e. | |
1040 | they are declared as supported by driver). | |
1041 | ||
029ee6b1 YM |
1042 | Timer reset mode (``ETHTOOL_A_COALESCE_USE_CQE_TX`` and |
1043 | ``ETHTOOL_A_COALESCE_USE_CQE_RX``) controls the interaction between packet | |
1044 | arrival and the various time based delay parameters. By default timers are | |
1045 | expected to limit the max delay between any packet arrival/departure and a | |
1046 | corresponding interrupt. In this mode timer should be started by packet | |
1047 | arrival (sometimes delivery of previous interrupt) and reset when interrupt | |
1048 | is delivered. | |
1049 | Setting the appropriate attribute to 1 will enable ``CQE`` mode, where | |
1050 | each packet event resets the timer. In this mode timer is used to force | |
1051 | the interrupt if queue goes idle, while busy queues depend on the packet | |
1052 | limit to trigger interrupts. | |
21727545 | 1053 | |
31de2842 DP |
1054 | Tx aggregation consists of copying frames into a contiguous buffer so that they |
1055 | can be submitted as a single IO operation. ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES`` | |
1056 | describes the maximum size in bytes for the submitted buffer. | |
1057 | ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES`` describes the maximum number of frames | |
1058 | that can be aggregated into a single buffer. | |
1059 | ``ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS`` describes the amount of time in usecs, | |
1060 | counted since the first packet arrival in an aggregated block, after which the | |
1061 | block should be sent. | |
1062 | This feature is mainly of interest for specific USB devices which does not cope | |
1063 | well with frequent small-sized URBs transmissions. | |
1064 | ||
9881418c MK |
1065 | COALESCE_SET |
1066 | ============ | |
1067 | ||
1068 | Sets coalescing parameters like ``ETHTOOL_SCOALESCE`` ioctl request. | |
1069 | ||
1070 | Request contents: | |
1071 | ||
1072 | =========================================== ====== ======================= | |
1073 | ``ETHTOOL_A_COALESCE_HEADER`` nested request header | |
1074 | ``ETHTOOL_A_COALESCE_RX_USECS`` u32 delay (us), normal Rx | |
1075 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES`` u32 max packets, normal Rx | |
1076 | ``ETHTOOL_A_COALESCE_RX_USECS_IRQ`` u32 delay (us), Rx in IRQ | |
1077 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_IRQ`` u32 max packets, Rx in IRQ | |
1078 | ``ETHTOOL_A_COALESCE_TX_USECS`` u32 delay (us), normal Tx | |
1079 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES`` u32 max packets, normal Tx | |
1080 | ``ETHTOOL_A_COALESCE_TX_USECS_IRQ`` u32 delay (us), Tx in IRQ | |
1081 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_IRQ`` u32 IRQ packets, Tx in IRQ | |
1082 | ``ETHTOOL_A_COALESCE_STATS_BLOCK_USECS`` u32 delay of stats update | |
1083 | ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_RX`` bool adaptive Rx coalesce | |
1084 | ``ETHTOOL_A_COALESCE_USE_ADAPTIVE_TX`` bool adaptive Tx coalesce | |
1085 | ``ETHTOOL_A_COALESCE_PKT_RATE_LOW`` u32 threshold for low rate | |
1086 | ``ETHTOOL_A_COALESCE_RX_USECS_LOW`` u32 delay (us), low Rx | |
1087 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_LOW`` u32 max packets, low Rx | |
1088 | ``ETHTOOL_A_COALESCE_TX_USECS_LOW`` u32 delay (us), low Tx | |
1089 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_LOW`` u32 max packets, low Tx | |
1090 | ``ETHTOOL_A_COALESCE_PKT_RATE_HIGH`` u32 threshold for high rate | |
1091 | ``ETHTOOL_A_COALESCE_RX_USECS_HIGH`` u32 delay (us), high Rx | |
1092 | ``ETHTOOL_A_COALESCE_RX_MAX_FRAMES_HIGH`` u32 max packets, high Rx | |
1093 | ``ETHTOOL_A_COALESCE_TX_USECS_HIGH`` u32 delay (us), high Tx | |
1094 | ``ETHTOOL_A_COALESCE_TX_MAX_FRAMES_HIGH`` u32 max packets, high Tx | |
1095 | ``ETHTOOL_A_COALESCE_RATE_SAMPLE_INTERVAL`` u32 rate sampling interval | |
029ee6b1 YM |
1096 | ``ETHTOOL_A_COALESCE_USE_CQE_TX`` bool timer reset mode, Tx |
1097 | ``ETHTOOL_A_COALESCE_USE_CQE_RX`` bool timer reset mode, Rx | |
31de2842 DP |
1098 | ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES`` u32 max aggr size, Tx |
1099 | ``ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES`` u32 max aggr packets, Tx | |
1100 | ``ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS`` u32 time (us), aggr, Tx | |
9881418c MK |
1101 | =========================================== ====== ======================= |
1102 | ||
1103 | Request is rejected if it attributes declared as unsupported by driver (i.e. | |
1104 | such that the corresponding bit in ``ethtool_ops::supported_coalesce_params`` | |
1105 | is not set), regardless of their values. Driver may impose additional | |
1106 | constraints on coalescing parameters and their values. | |
1107 | ||
00d0f31a JK |
1108 | Compared to requests issued via the ``ioctl()`` netlink version of this request |
1109 | will try harder to make sure that values specified by the user have been applied | |
1110 | and may call the driver twice. | |
1111 | ||
9881418c | 1112 | |
7f59fb32 | 1113 | PAUSE_GET |
5219d601 | 1114 | ========= |
7f59fb32 | 1115 | |
5219d601 | 1116 | Gets pause frame settings like ``ETHTOOL_GPAUSEPARAM`` ioctl request. |
7f59fb32 MK |
1117 | |
1118 | Request contents: | |
1119 | ||
1120 | ===================================== ====== ========================== | |
1121 | ``ETHTOOL_A_PAUSE_HEADER`` nested request header | |
c319df10 | 1122 | ``ETHTOOL_A_PAUSE_STATS_SRC`` u32 source of statistics |
7f59fb32 MK |
1123 | ===================================== ====== ========================== |
1124 | ||
c319df10 VO |
1125 | ``ETHTOOL_A_PAUSE_STATS_SRC`` is optional. It takes values from: |
1126 | ||
1127 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1128 | :identifiers: ethtool_mac_stats_src | |
1129 | ||
1130 | If absent from the request, stats will be provided with | |
1131 | an ``ETHTOOL_A_PAUSE_STATS_SRC`` attribute in the response equal to | |
1132 | ``ETHTOOL_MAC_STATS_SRC_AGGREGATE``. | |
1133 | ||
7f59fb32 MK |
1134 | Kernel response contents: |
1135 | ||
1136 | ===================================== ====== ========================== | |
1137 | ``ETHTOOL_A_PAUSE_HEADER`` nested request header | |
1138 | ``ETHTOOL_A_PAUSE_AUTONEG`` bool pause autonegotiation | |
1139 | ``ETHTOOL_A_PAUSE_RX`` bool receive pause frames | |
1140 | ``ETHTOOL_A_PAUSE_TX`` bool transmit pause frames | |
9a27a330 | 1141 | ``ETHTOOL_A_PAUSE_STATS`` nested pause statistics |
7f59fb32 MK |
1142 | ===================================== ====== ========================== |
1143 | ||
9a27a330 JK |
1144 | ``ETHTOOL_A_PAUSE_STATS`` are reported if ``ETHTOOL_FLAG_STATS`` was set |
1145 | in ``ETHTOOL_A_HEADER_FLAGS``. | |
1146 | It will be empty if driver did not report any statistics. Drivers fill in | |
1147 | the statistics in the following structure: | |
1148 | ||
1149 | .. kernel-doc:: include/linux/ethtool.h | |
1150 | :identifiers: ethtool_pause_stats | |
1151 | ||
1152 | Each member has a corresponding attribute defined. | |
7f59fb32 MK |
1153 | |
1154 | PAUSE_SET | |
5219d601 | 1155 | ========= |
7f59fb32 MK |
1156 | |
1157 | Sets pause parameters like ``ETHTOOL_GPAUSEPARAM`` ioctl request. | |
1158 | ||
1159 | Request contents: | |
1160 | ||
1161 | ===================================== ====== ========================== | |
1162 | ``ETHTOOL_A_PAUSE_HEADER`` nested request header | |
1163 | ``ETHTOOL_A_PAUSE_AUTONEG`` bool pause autonegotiation | |
1164 | ``ETHTOOL_A_PAUSE_RX`` bool receive pause frames | |
1165 | ``ETHTOOL_A_PAUSE_TX`` bool transmit pause frames | |
1166 | ===================================== ====== ========================== | |
1167 | ||
1168 | ||
b7eeefe7 MK |
1169 | EEE_GET |
1170 | ======= | |
1171 | ||
5219d601 | 1172 | Gets Energy Efficient Ethernet settings like ``ETHTOOL_GEEE`` ioctl request. |
b7eeefe7 MK |
1173 | |
1174 | Request contents: | |
1175 | ||
1176 | ===================================== ====== ========================== | |
1177 | ``ETHTOOL_A_EEE_HEADER`` nested request header | |
1178 | ===================================== ====== ========================== | |
1179 | ||
1180 | Kernel response contents: | |
1181 | ||
1182 | ===================================== ====== ========================== | |
1183 | ``ETHTOOL_A_EEE_HEADER`` nested request header | |
1184 | ``ETHTOOL_A_EEE_MODES_OURS`` bool supported/advertised modes | |
1185 | ``ETHTOOL_A_EEE_MODES_PEER`` bool peer advertised link modes | |
1186 | ``ETHTOOL_A_EEE_ACTIVE`` bool EEE is actively used | |
1187 | ``ETHTOOL_A_EEE_ENABLED`` bool EEE is enabled | |
1188 | ``ETHTOOL_A_EEE_TX_LPI_ENABLED`` bool Tx lpi enabled | |
1189 | ``ETHTOOL_A_EEE_TX_LPI_TIMER`` u32 Tx lpi timeout (in us) | |
1190 | ===================================== ====== ========================== | |
1191 | ||
1192 | In ``ETHTOOL_A_EEE_MODES_OURS``, mask consists of link modes for which EEE is | |
1193 | enabled, value of link modes for which EEE is advertised. Link modes for which | |
1194 | peer advertises EEE are listed in ``ETHTOOL_A_EEE_MODES_PEER`` (no mask). The | |
1195 | netlink interface allows reporting EEE status for all link modes but only | |
1196 | first 32 are provided by the ``ethtool_ops`` callback. | |
1197 | ||
1198 | ||
fd77be7b MK |
1199 | EEE_SET |
1200 | ======= | |
1201 | ||
5219d601 | 1202 | Sets Energy Efficient Ethernet parameters like ``ETHTOOL_SEEE`` ioctl request. |
fd77be7b MK |
1203 | |
1204 | Request contents: | |
1205 | ||
1206 | ===================================== ====== ========================== | |
1207 | ``ETHTOOL_A_EEE_HEADER`` nested request header | |
1208 | ``ETHTOOL_A_EEE_MODES_OURS`` bool advertised modes | |
1209 | ``ETHTOOL_A_EEE_ENABLED`` bool EEE is enabled | |
1210 | ``ETHTOOL_A_EEE_TX_LPI_ENABLED`` bool Tx lpi enabled | |
1211 | ``ETHTOOL_A_EEE_TX_LPI_TIMER`` u32 Tx lpi timeout (in us) | |
1212 | ===================================== ====== ========================== | |
1213 | ||
1214 | ``ETHTOOL_A_EEE_MODES_OURS`` is used to either list link modes to advertise | |
1215 | EEE for (if there is no mask) or specify changes to the list (if there is | |
1216 | a mask). The netlink interface allows reporting EEE status for all link modes | |
1217 | but only first 32 can be set at the moment as that is what the ``ethtool_ops`` | |
1218 | callback supports. | |
1219 | ||
1220 | ||
5b071c59 MK |
1221 | TSINFO_GET |
1222 | ========== | |
1223 | ||
1224 | Gets timestamping information like ``ETHTOOL_GET_TS_INFO`` ioctl request. | |
1225 | ||
1226 | Request contents: | |
1227 | ||
1228 | ===================================== ====== ========================== | |
1229 | ``ETHTOOL_A_TSINFO_HEADER`` nested request header | |
1230 | ===================================== ====== ========================== | |
1231 | ||
1232 | Kernel response contents: | |
1233 | ||
1234 | ===================================== ====== ========================== | |
1235 | ``ETHTOOL_A_TSINFO_HEADER`` nested request header | |
1236 | ``ETHTOOL_A_TSINFO_TIMESTAMPING`` bitset SO_TIMESTAMPING flags | |
1237 | ``ETHTOOL_A_TSINFO_TX_TYPES`` bitset supported Tx types | |
1238 | ``ETHTOOL_A_TSINFO_RX_FILTERS`` bitset supported Rx filters | |
1239 | ``ETHTOOL_A_TSINFO_PHC_INDEX`` u32 PTP hw clock index | |
1240 | ===================================== ====== ========================== | |
1241 | ||
1242 | ``ETHTOOL_A_TSINFO_PHC_INDEX`` is absent if there is no associated PHC (there | |
1243 | is no special value for this case). The bitset attributes are omitted if they | |
1244 | would be empty (no bit set). | |
1245 | ||
11ca3c42 AL |
1246 | CABLE_TEST |
1247 | ========== | |
1248 | ||
1249 | Start a cable test. | |
1250 | ||
1251 | Request contents: | |
1252 | ||
1253 | ==================================== ====== ========================== | |
1254 | ``ETHTOOL_A_CABLE_TEST_HEADER`` nested request header | |
1255 | ==================================== ====== ========================== | |
1256 | ||
b28efb93 AL |
1257 | Notification contents: |
1258 | ||
1259 | An Ethernet cable typically contains 1, 2 or 4 pairs. The length of | |
1260 | the pair can only be measured when there is a fault in the pair and | |
1261 | hence a reflection. Information about the fault may not be available, | |
1262 | depending on the specific hardware. Hence the contents of the notify | |
1263 | message are mostly optional. The attributes can be repeated an | |
1264 | arbitrary number of times, in an arbitrary order, for an arbitrary | |
1265 | number of pairs. | |
1266 | ||
1267 | The example shows the notification sent when the test is completed for | |
1268 | a T2 cable, i.e. two pairs. One pair is OK and hence has no length | |
1269 | information. The second pair has a fault and does have length | |
1270 | information. | |
1271 | ||
1272 | +---------------------------------------------+--------+---------------------+ | |
1273 | | ``ETHTOOL_A_CABLE_TEST_HEADER`` | nested | reply header | | |
1274 | +---------------------------------------------+--------+---------------------+ | |
1275 | | ``ETHTOOL_A_CABLE_TEST_STATUS`` | u8 | completed | | |
1276 | +---------------------------------------------+--------+---------------------+ | |
1277 | | ``ETHTOOL_A_CABLE_TEST_NTF_NEST`` | nested | all the results | | |
1278 | +-+-------------------------------------------+--------+---------------------+ | |
1279 | | | ``ETHTOOL_A_CABLE_NEST_RESULT`` | nested | cable test result | | |
1280 | +-+-+-----------------------------------------+--------+---------------------+ | |
1281 | | | | ``ETHTOOL_A_CABLE_RESULTS_PAIR`` | u8 | pair number | | |
1282 | +-+-+-----------------------------------------+--------+---------------------+ | |
1283 | | | | ``ETHTOOL_A_CABLE_RESULTS_CODE`` | u8 | result code | | |
1284 | +-+-+-----------------------------------------+--------+---------------------+ | |
1285 | | | ``ETHTOOL_A_CABLE_NEST_RESULT`` | nested | cable test results | | |
1286 | +-+-+-----------------------------------------+--------+---------------------+ | |
1287 | | | | ``ETHTOOL_A_CABLE_RESULTS_PAIR`` | u8 | pair number | | |
1288 | +-+-+-----------------------------------------+--------+---------------------+ | |
1289 | | | | ``ETHTOOL_A_CABLE_RESULTS_CODE`` | u8 | result code | | |
1290 | +-+-+-----------------------------------------+--------+---------------------+ | |
1291 | | | ``ETHTOOL_A_CABLE_NEST_FAULT_LENGTH`` | nested | cable length | | |
1292 | +-+-+-----------------------------------------+--------+---------------------+ | |
1293 | | | | ``ETHTOOL_A_CABLE_FAULT_LENGTH_PAIR`` | u8 | pair number | | |
1294 | +-+-+-----------------------------------------+--------+---------------------+ | |
1295 | | | | ``ETHTOOL_A_CABLE_FAULT_LENGTH_CM`` | u32 | length in cm | | |
1296 | +-+-+-----------------------------------------+--------+---------------------+ | |
5b071c59 | 1297 | |
a331172b AL |
1298 | CABLE_TEST TDR |
1299 | ============== | |
1300 | ||
1301 | Start a cable test and report raw TDR data | |
1302 | ||
1303 | Request contents: | |
1304 | ||
f2bc8ad3 AL |
1305 | +--------------------------------------------+--------+-----------------------+ |
1306 | | ``ETHTOOL_A_CABLE_TEST_TDR_HEADER`` | nested | reply header | | |
1307 | +--------------------------------------------+--------+-----------------------+ | |
1308 | | ``ETHTOOL_A_CABLE_TEST_TDR_CFG`` | nested | test configuration | | |
1309 | +-+------------------------------------------+--------+-----------------------+ | |
58e898a0 | 1310 | | | ``ETHTOOL_A_CABLE_STEP_FIRST_DISTANCE`` | u32 | first data distance | |
f2bc8ad3 | 1311 | +-+-+----------------------------------------+--------+-----------------------+ |
58e898a0 | 1312 | | | ``ETHTOOL_A_CABLE_STEP_LAST_DISTANCE`` | u32 | last data distance | |
f2bc8ad3 | 1313 | +-+-+----------------------------------------+--------+-----------------------+ |
58e898a0 | 1314 | | | ``ETHTOOL_A_CABLE_STEP_STEP_DISTANCE`` | u32 | distance of each step | |
f2bc8ad3 AL |
1315 | +-+-+----------------------------------------+--------+-----------------------+ |
1316 | | | ``ETHTOOL_A_CABLE_TEST_TDR_CFG_PAIR`` | u8 | pair to test | | |
1317 | +-+-+----------------------------------------+--------+-----------------------+ | |
1318 | ||
1319 | The ETHTOOL_A_CABLE_TEST_TDR_CFG is optional, as well as all members | |
1320 | of the nest. All distances are expressed in centimeters. The PHY takes | |
1321 | the distances as a guide, and rounds to the nearest distance it | |
1322 | actually supports. If a pair is passed, only that one pair will be | |
1323 | tested. Otherwise all pairs are tested. | |
a331172b AL |
1324 | |
1325 | Notification contents: | |
1326 | ||
1327 | Raw TDR data is gathered by sending a pulse down the cable and | |
1328 | recording the amplitude of the reflected pulse for a given distance. | |
1329 | ||
1330 | It can take a number of seconds to collect TDR data, especial if the | |
1331 | full 100 meters is probed at 1 meter intervals. When the test is | |
1332 | started a notification will be sent containing just | |
1333 | ETHTOOL_A_CABLE_TEST_TDR_STATUS with the value | |
1334 | ETHTOOL_A_CABLE_TEST_NTF_STATUS_STARTED. | |
1335 | ||
1336 | When the test has completed a second notification will be sent | |
1337 | containing ETHTOOL_A_CABLE_TEST_TDR_STATUS with the value | |
1338 | ETHTOOL_A_CABLE_TEST_NTF_STATUS_COMPLETED and the TDR data. | |
1339 | ||
1340 | The message may optionally contain the amplitude of the pulse send | |
1341 | down the cable. This is measured in mV. A reflection should not be | |
1342 | bigger than transmitted pulse. | |
1343 | ||
1344 | Before the raw TDR data should be an ETHTOOL_A_CABLE_TDR_NEST_STEP | |
1345 | nest containing information about the distance along the cable for the | |
1346 | first reading, the last reading, and the step between each | |
1347 | reading. Distances are measured in centimeters. These should be the | |
1348 | exact values the PHY used. These may be different to what the user | |
1349 | requested, if the native measurement resolution is greater than 1 cm. | |
1350 | ||
1351 | For each step along the cable, a ETHTOOL_A_CABLE_TDR_NEST_AMPLITUDE is | |
1352 | used to report the amplitude of the reflection for a given pair. | |
1353 | ||
1354 | +---------------------------------------------+--------+----------------------+ | |
1355 | | ``ETHTOOL_A_CABLE_TEST_TDR_HEADER`` | nested | reply header | | |
1356 | +---------------------------------------------+--------+----------------------+ | |
1357 | | ``ETHTOOL_A_CABLE_TEST_TDR_STATUS`` | u8 | completed | | |
1358 | +---------------------------------------------+--------+----------------------+ | |
1359 | | ``ETHTOOL_A_CABLE_TEST_TDR_NTF_NEST`` | nested | all the results | | |
1360 | +-+-------------------------------------------+--------+----------------------+ | |
1361 | | | ``ETHTOOL_A_CABLE_TDR_NEST_PULSE`` | nested | TX Pulse amplitude | | |
1362 | +-+-+-----------------------------------------+--------+----------------------+ | |
1363 | | | | ``ETHTOOL_A_CABLE_PULSE_mV`` | s16 | Pulse amplitude | | |
1364 | +-+-+-----------------------------------------+--------+----------------------+ | |
1365 | | | ``ETHTOOL_A_CABLE_NEST_STEP`` | nested | TDR step info | | |
1366 | +-+-+-----------------------------------------+--------+----------------------+ | |
58e898a0 | 1367 | | | | ``ETHTOOL_A_CABLE_STEP_FIRST_DISTANCE`` | u32 | First data distance | |
a331172b | 1368 | +-+-+-----------------------------------------+--------+----------------------+ |
58e898a0 | 1369 | | | | ``ETHTOOL_A_CABLE_STEP_LAST_DISTANCE`` | u32 | Last data distance | |
a331172b | 1370 | +-+-+-----------------------------------------+--------+----------------------+ |
58e898a0 | 1371 | | | | ``ETHTOOL_A_CABLE_STEP_STEP_DISTANCE`` | u32 | distance of each step| |
a331172b AL |
1372 | +-+-+-----------------------------------------+--------+----------------------+ |
1373 | | | ``ETHTOOL_A_CABLE_TDR_NEST_AMPLITUDE`` | nested | Reflection amplitude | | |
1374 | +-+-+-----------------------------------------+--------+----------------------+ | |
1375 | | | | ``ETHTOOL_A_CABLE_RESULTS_PAIR`` | u8 | pair number | | |
1376 | +-+-+-----------------------------------------+--------+----------------------+ | |
1377 | | | | ``ETHTOOL_A_CABLE_AMPLITUDE_mV`` | s16 | Reflection amplitude | | |
1378 | +-+-+-----------------------------------------+--------+----------------------+ | |
1379 | | | ``ETHTOOL_A_CABLE_TDR_NEST_AMPLITUDE`` | nested | Reflection amplitude | | |
1380 | +-+-+-----------------------------------------+--------+----------------------+ | |
1381 | | | | ``ETHTOOL_A_CABLE_RESULTS_PAIR`` | u8 | pair number | | |
1382 | +-+-+-----------------------------------------+--------+----------------------+ | |
1383 | | | | ``ETHTOOL_A_CABLE_AMPLITUDE_mV`` | s16 | Reflection amplitude | | |
1384 | +-+-+-----------------------------------------+--------+----------------------+ | |
1385 | | | ``ETHTOOL_A_CABLE_TDR_NEST_AMPLITUDE`` | nested | Reflection amplitude | | |
1386 | +-+-+-----------------------------------------+--------+----------------------+ | |
1387 | | | | ``ETHTOOL_A_CABLE_RESULTS_PAIR`` | u8 | pair number | | |
1388 | +-+-+-----------------------------------------+--------+----------------------+ | |
1389 | | | | ``ETHTOOL_A_CABLE_AMPLITUDE_mV`` | s16 | Reflection amplitude | | |
1390 | +-+-+-----------------------------------------+--------+----------------------+ | |
1391 | ||
c7d759eb JK |
1392 | TUNNEL_INFO |
1393 | =========== | |
1394 | ||
1395 | Gets information about the tunnel state NIC is aware of. | |
1396 | ||
1397 | Request contents: | |
1398 | ||
1399 | ===================================== ====== ========================== | |
1400 | ``ETHTOOL_A_TUNNEL_INFO_HEADER`` nested request header | |
1401 | ===================================== ====== ========================== | |
1402 | ||
1403 | Kernel response contents: | |
1404 | ||
1405 | +---------------------------------------------+--------+---------------------+ | |
1406 | | ``ETHTOOL_A_TUNNEL_INFO_HEADER`` | nested | reply header | | |
1407 | +---------------------------------------------+--------+---------------------+ | |
1408 | | ``ETHTOOL_A_TUNNEL_INFO_UDP_PORTS`` | nested | all UDP port tables | | |
1409 | +-+-------------------------------------------+--------+---------------------+ | |
1410 | | | ``ETHTOOL_A_TUNNEL_UDP_TABLE`` | nested | one UDP port table | | |
1411 | +-+-+-----------------------------------------+--------+---------------------+ | |
1412 | | | | ``ETHTOOL_A_TUNNEL_UDP_TABLE_SIZE`` | u32 | max size of the | | |
1413 | | | | | | table | | |
1414 | +-+-+-----------------------------------------+--------+---------------------+ | |
1415 | | | | ``ETHTOOL_A_TUNNEL_UDP_TABLE_TYPES`` | bitset | tunnel types which | | |
1416 | | | | | | table can hold | | |
1417 | +-+-+-----------------------------------------+--------+---------------------+ | |
1418 | | | | ``ETHTOOL_A_TUNNEL_UDP_TABLE_ENTRY`` | nested | offloaded UDP port | | |
1419 | +-+-+-+---------------------------------------+--------+---------------------+ | |
1420 | | | | | ``ETHTOOL_A_TUNNEL_UDP_ENTRY_PORT`` | be16 | UDP port | | |
1421 | +-+-+-+---------------------------------------+--------+---------------------+ | |
1422 | | | | | ``ETHTOOL_A_TUNNEL_UDP_ENTRY_TYPE`` | u32 | tunnel type | | |
1423 | +-+-+-+---------------------------------------+--------+---------------------+ | |
1424 | ||
966e5059 JK |
1425 | For UDP tunnel table empty ``ETHTOOL_A_TUNNEL_UDP_TABLE_TYPES`` indicates that |
1426 | the table contains static entries, hard-coded by the NIC. | |
1427 | ||
1e5d1f69 JK |
1428 | FEC_GET |
1429 | ======= | |
1430 | ||
1431 | Gets FEC configuration and state like ``ETHTOOL_GFECPARAM`` ioctl request. | |
1432 | ||
1433 | Request contents: | |
1434 | ||
1435 | ===================================== ====== ========================== | |
1436 | ``ETHTOOL_A_FEC_HEADER`` nested request header | |
1437 | ===================================== ====== ========================== | |
1438 | ||
1439 | Kernel response contents: | |
1440 | ||
1441 | ===================================== ====== ========================== | |
1442 | ``ETHTOOL_A_FEC_HEADER`` nested request header | |
1443 | ``ETHTOOL_A_FEC_MODES`` bitset configured modes | |
1444 | ``ETHTOOL_A_FEC_AUTO`` bool FEC mode auto selection | |
1445 | ``ETHTOOL_A_FEC_ACTIVE`` u32 index of active FEC mode | |
be85dbfe | 1446 | ``ETHTOOL_A_FEC_STATS`` nested FEC statistics |
1e5d1f69 JK |
1447 | ===================================== ====== ========================== |
1448 | ||
1449 | ``ETHTOOL_A_FEC_ACTIVE`` is the bit index of the FEC link mode currently | |
1450 | active on the interface. This attribute may not be present if device does | |
1451 | not support FEC. | |
1452 | ||
1453 | ``ETHTOOL_A_FEC_MODES`` and ``ETHTOOL_A_FEC_AUTO`` are only meaningful when | |
1454 | autonegotiation is disabled. If ``ETHTOOL_A_FEC_AUTO`` is non-zero driver will | |
1455 | select the FEC mode automatically based on the parameters of the SFP module. | |
1456 | This is equivalent to the ``ETHTOOL_FEC_AUTO`` bit of the ioctl interface. | |
1457 | ``ETHTOOL_A_FEC_MODES`` carry the current FEC configuration using link mode | |
1458 | bits (rather than old ``ETHTOOL_FEC_*`` bits). | |
1459 | ||
be85dbfe JK |
1460 | ``ETHTOOL_A_FEC_STATS`` are reported if ``ETHTOOL_FLAG_STATS`` was set in |
1461 | ``ETHTOOL_A_HEADER_FLAGS``. | |
1462 | Each attribute carries an array of 64bit statistics. First entry in the array | |
1463 | contains the total number of events on the port, while the following entries | |
1464 | are counters corresponding to lanes/PCS instances. The number of entries in | |
1465 | the array will be: | |
1466 | ||
1467 | +--------------+---------------------------------------------+ | |
1468 | | `0` | device does not support FEC statistics | | |
1469 | +--------------+---------------------------------------------+ | |
1470 | | `1` | device does not support per-lane break down | | |
1471 | +--------------+---------------------------------------------+ | |
1472 | | `1 + #lanes` | device has full support for FEC stats | | |
1473 | +--------------+---------------------------------------------+ | |
1474 | ||
1475 | Drivers fill in the statistics in the following structure: | |
1476 | ||
1477 | .. kernel-doc:: include/linux/ethtool.h | |
1478 | :identifiers: ethtool_fec_stats | |
1479 | ||
1e5d1f69 JK |
1480 | FEC_SET |
1481 | ======= | |
1482 | ||
1483 | Sets FEC parameters like ``ETHTOOL_SFECPARAM`` ioctl request. | |
1484 | ||
1485 | Request contents: | |
1486 | ||
1487 | ===================================== ====== ========================== | |
1488 | ``ETHTOOL_A_FEC_HEADER`` nested request header | |
1489 | ``ETHTOOL_A_FEC_MODES`` bitset configured modes | |
1490 | ``ETHTOOL_A_FEC_AUTO`` bool FEC mode auto selection | |
1491 | ===================================== ====== ========================== | |
1492 | ||
1493 | ``FEC_SET`` is only meaningful when autonegotiation is disabled. Otherwise | |
1494 | FEC mode is selected as part of autonegotiation. | |
1495 | ||
1496 | ``ETHTOOL_A_FEC_MODES`` selects which FEC mode should be used. It's recommended | |
1497 | to set only one bit, if multiple bits are set driver may choose between them | |
1498 | in an implementation specific way. | |
1499 | ||
1500 | ``ETHTOOL_A_FEC_AUTO`` requests the driver to choose FEC mode based on SFP | |
1501 | module parameters. This does not mean autonegotiation. | |
1502 | ||
78c57f22 IS |
1503 | MODULE_EEPROM_GET |
1504 | ================= | |
c781ff12 VT |
1505 | |
1506 | Fetch module EEPROM data dump. | |
1507 | This interface is designed to allow dumps of at most 1/2 page at once. This | |
1508 | means only dumps of 128 (or less) bytes are allowed, without crossing half page | |
1509 | boundary located at offset 128. For pages other than 0 only high 128 bytes are | |
1510 | accessible. | |
1511 | ||
1512 | Request contents: | |
1513 | ||
1514 | ======================================= ====== ========================== | |
1515 | ``ETHTOOL_A_MODULE_EEPROM_HEADER`` nested request header | |
1516 | ``ETHTOOL_A_MODULE_EEPROM_OFFSET`` u32 offset within a page | |
1517 | ``ETHTOOL_A_MODULE_EEPROM_LENGTH`` u32 amount of bytes to read | |
1518 | ``ETHTOOL_A_MODULE_EEPROM_PAGE`` u8 page number | |
1519 | ``ETHTOOL_A_MODULE_EEPROM_BANK`` u8 bank number | |
1520 | ``ETHTOOL_A_MODULE_EEPROM_I2C_ADDRESS`` u8 page I2C address | |
1521 | ======================================= ====== ========================== | |
1522 | ||
37a025e8 IS |
1523 | If ``ETHTOOL_A_MODULE_EEPROM_BANK`` is not specified, bank 0 is assumed. |
1524 | ||
c781ff12 VT |
1525 | Kernel response contents: |
1526 | ||
1527 | +---------------------------------------------+--------+---------------------+ | |
1528 | | ``ETHTOOL_A_MODULE_EEPROM_HEADER`` | nested | reply header | | |
1529 | +---------------------------------------------+--------+---------------------+ | |
913d026f | 1530 | | ``ETHTOOL_A_MODULE_EEPROM_DATA`` | binary | array of bytes from | |
c781ff12 VT |
1531 | | | | module EEPROM | |
1532 | +---------------------------------------------+--------+---------------------+ | |
1533 | ||
1534 | ``ETHTOOL_A_MODULE_EEPROM_DATA`` has an attribute length equal to the amount of | |
1535 | bytes driver actually read. | |
1536 | ||
ddc78b36 JK |
1537 | STATS_GET |
1538 | ========= | |
1539 | ||
1540 | Get standard statistics for the interface. Note that this is not | |
1541 | a re-implementation of ``ETHTOOL_GSTATS`` which exposed driver-defined | |
1542 | stats. | |
1543 | ||
1544 | Request contents: | |
1545 | ||
1546 | ======================================= ====== ========================== | |
1547 | ``ETHTOOL_A_STATS_HEADER`` nested request header | |
c319df10 | 1548 | ``ETHTOOL_A_STATS_SRC`` u32 source of statistics |
ddc78b36 JK |
1549 | ``ETHTOOL_A_STATS_GROUPS`` bitset requested groups of stats |
1550 | ======================================= ====== ========================== | |
1551 | ||
1552 | Kernel response contents: | |
1553 | ||
1554 | +-----------------------------------+--------+--------------------------------+ | |
1555 | | ``ETHTOOL_A_STATS_HEADER`` | nested | reply header | | |
1556 | +-----------------------------------+--------+--------------------------------+ | |
c319df10 VO |
1557 | | ``ETHTOOL_A_STATS_SRC`` | u32 | source of statistics | |
1558 | +-----------------------------------+--------+--------------------------------+ | |
ddc78b36 JK |
1559 | | ``ETHTOOL_A_STATS_GRP`` | nested | one or more group of stats | |
1560 | +-+---------------------------------+--------+--------------------------------+ | |
1561 | | | ``ETHTOOL_A_STATS_GRP_ID`` | u32 | group ID - ``ETHTOOL_STATS_*`` | | |
1562 | +-+---------------------------------+--------+--------------------------------+ | |
1563 | | | ``ETHTOOL_A_STATS_GRP_SS_ID`` | u32 | string set ID for names | | |
1564 | +-+---------------------------------+--------+--------------------------------+ | |
1565 | | | ``ETHTOOL_A_STATS_GRP_STAT`` | nested | nest containing a statistic | | |
1566 | +-+---------------------------------+--------+--------------------------------+ | |
1567 | | | ``ETHTOOL_A_STATS_GRP_HIST_RX`` | nested | histogram statistic (Rx) | | |
1568 | +-+---------------------------------+--------+--------------------------------+ | |
1569 | | | ``ETHTOOL_A_STATS_GRP_HIST_TX`` | nested | histogram statistic (Tx) | | |
1570 | +-+---------------------------------+--------+--------------------------------+ | |
1571 | ||
1572 | Users specify which groups of statistics they are requesting via | |
1573 | the ``ETHTOOL_A_STATS_GROUPS`` bitset. Currently defined values are: | |
1574 | ||
1575 | ====================== ======== =============================================== | |
1576 | ETHTOOL_STATS_ETH_MAC eth-mac Basic IEEE 802.3 MAC statistics (30.3.1.1.*) | |
1577 | ETHTOOL_STATS_ETH_PHY eth-phy Basic IEEE 802.3 PHY statistics (30.3.2.1.*) | |
1578 | ETHTOOL_STATS_ETH_CTRL eth-ctrl Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*) | |
1579 | ETHTOOL_STATS_RMON rmon RMON (RFC 2819) statistics | |
1580 | ====================== ======== =============================================== | |
1581 | ||
1582 | Each group should have a corresponding ``ETHTOOL_A_STATS_GRP`` in the reply. | |
1583 | ``ETHTOOL_A_STATS_GRP_ID`` identifies which group's statistics nest contains. | |
1584 | ``ETHTOOL_A_STATS_GRP_SS_ID`` identifies the string set ID for the names of | |
1585 | the statistics in the group, if available. | |
1586 | ||
1587 | Statistics are added to the ``ETHTOOL_A_STATS_GRP`` nest under | |
1588 | ``ETHTOOL_A_STATS_GRP_STAT``. ``ETHTOOL_A_STATS_GRP_STAT`` should contain | |
1589 | single 8 byte (u64) attribute inside - the type of that attribute is | |
1590 | the statistic ID and the value is the value of the statistic. | |
1591 | Each group has its own interpretation of statistic IDs. | |
1592 | Attribute IDs correspond to strings from the string set identified | |
1593 | by ``ETHTOOL_A_STATS_GRP_SS_ID``. Complex statistics (such as RMON histogram | |
1594 | entries) are also listed inside ``ETHTOOL_A_STATS_GRP`` and do not have | |
1595 | a string defined in the string set. | |
1596 | ||
1597 | RMON "histogram" counters count number of packets within given size range. | |
1598 | Because RFC does not specify the ranges beyond the standard 1518 MTU devices | |
1599 | differ in definition of buckets. For this reason the definition of packet ranges | |
1600 | is left to each driver. | |
1601 | ||
1602 | ``ETHTOOL_A_STATS_GRP_HIST_RX`` and ``ETHTOOL_A_STATS_GRP_HIST_TX`` nests | |
1603 | contain the following attributes: | |
1604 | ||
1605 | ================================= ====== =================================== | |
1606 | ETHTOOL_A_STATS_RMON_HIST_BKT_LOW u32 low bound of the packet size bucket | |
1607 | ETHTOOL_A_STATS_RMON_HIST_BKT_HI u32 high bound of the bucket | |
1608 | ETHTOOL_A_STATS_RMON_HIST_VAL u64 packet counter | |
1609 | ================================= ====== =================================== | |
1610 | ||
1611 | Low and high bounds are inclusive, for example: | |
1612 | ||
1613 | ============================= ==== ==== | |
1614 | RFC statistic low high | |
1615 | ============================= ==== ==== | |
1616 | etherStatsPkts64Octets 0 64 | |
1617 | etherStatsPkts512to1023Octets 512 1023 | |
1618 | ============================= ==== ==== | |
1619 | ||
c319df10 VO |
1620 | ``ETHTOOL_A_STATS_SRC`` is optional. Similar to ``PAUSE_GET``, it takes values |
1621 | from ``enum ethtool_mac_stats_src``. If absent from the request, stats will be | |
1622 | provided with an ``ETHTOOL_A_STATS_SRC`` attribute in the response equal to | |
1623 | ``ETHTOOL_MAC_STATS_SRC_AGGREGATE``. | |
1624 | ||
c156174a YL |
1625 | PHC_VCLOCKS_GET |
1626 | =============== | |
1627 | ||
1628 | Query device PHC virtual clocks information. | |
1629 | ||
1630 | Request contents: | |
1631 | ||
1632 | ==================================== ====== ========================== | |
1633 | ``ETHTOOL_A_PHC_VCLOCKS_HEADER`` nested request header | |
1634 | ==================================== ====== ========================== | |
1635 | ||
1636 | Kernel response contents: | |
1637 | ||
1638 | ==================================== ====== ========================== | |
1639 | ``ETHTOOL_A_PHC_VCLOCKS_HEADER`` nested reply header | |
1640 | ``ETHTOOL_A_PHC_VCLOCKS_NUM`` u32 PHC virtual clocks number | |
1641 | ``ETHTOOL_A_PHC_VCLOCKS_INDEX`` s32 PHC index array | |
1642 | ==================================== ====== ========================== | |
1643 | ||
353407d9 IS |
1644 | MODULE_GET |
1645 | ========== | |
1646 | ||
1647 | Gets transceiver module parameters. | |
1648 | ||
1649 | Request contents: | |
1650 | ||
1651 | ===================================== ====== ========================== | |
1652 | ``ETHTOOL_A_MODULE_HEADER`` nested request header | |
1653 | ===================================== ====== ========================== | |
1654 | ||
1655 | Kernel response contents: | |
1656 | ||
1657 | ====================================== ====== ========================== | |
1658 | ``ETHTOOL_A_MODULE_HEADER`` nested reply header | |
1659 | ``ETHTOOL_A_MODULE_POWER_MODE_POLICY`` u8 power mode policy | |
1660 | ``ETHTOOL_A_MODULE_POWER_MODE`` u8 operational power mode | |
1661 | ====================================== ====== ========================== | |
1662 | ||
1663 | The optional ``ETHTOOL_A_MODULE_POWER_MODE_POLICY`` attribute encodes the | |
1664 | transceiver module power mode policy enforced by the host. The default policy | |
1665 | is driver-dependent, but "auto" is the recommended default and it should be | |
1666 | implemented by new drivers and drivers where conformance to a legacy behavior | |
1667 | is not critical. | |
1668 | ||
1669 | The optional ``ETHTHOOL_A_MODULE_POWER_MODE`` attribute encodes the operational | |
1670 | power mode policy of the transceiver module. It is only reported when a module | |
1671 | is plugged-in. Possible values are: | |
1672 | ||
1673 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1674 | :identifiers: ethtool_module_power_mode | |
1675 | ||
1676 | MODULE_SET | |
1677 | ========== | |
1678 | ||
1679 | Sets transceiver module parameters. | |
1680 | ||
1681 | Request contents: | |
1682 | ||
1683 | ====================================== ====== ========================== | |
1684 | ``ETHTOOL_A_MODULE_HEADER`` nested request header | |
1685 | ``ETHTOOL_A_MODULE_POWER_MODE_POLICY`` u8 power mode policy | |
1686 | ====================================== ====== ========================== | |
1687 | ||
1688 | When set, the optional ``ETHTOOL_A_MODULE_POWER_MODE_POLICY`` attribute is used | |
1689 | to set the transceiver module power policy enforced by the host. Possible | |
1690 | values are: | |
1691 | ||
1692 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1693 | :identifiers: ethtool_module_power_mode_policy | |
1694 | ||
1695 | For SFF-8636 modules, low power mode is forced by the host according to table | |
1696 | 6-10 in revision 2.10a of the specification. | |
1697 | ||
1698 | For CMIS modules, low power mode is forced by the host according to table 6-12 | |
1699 | in revision 5.0 of the specification. | |
1700 | ||
18ff0bcd OR |
1701 | PSE_GET |
1702 | ======= | |
1703 | ||
1704 | Gets PSE attributes. | |
1705 | ||
1706 | Request contents: | |
1707 | ||
1708 | ===================================== ====== ========================== | |
1709 | ``ETHTOOL_A_PSE_HEADER`` nested request header | |
1710 | ===================================== ====== ========================== | |
1711 | ||
1712 | Kernel response contents: | |
1713 | ||
1714 | ====================================== ====== ============================= | |
1715 | ``ETHTOOL_A_PSE_HEADER`` nested reply header | |
1716 | ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` u32 Operational state of the PoDL | |
1717 | PSE functions | |
1718 | ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` u32 power detection status of the | |
1719 | PoDL PSE. | |
1720 | ====================================== ====== ============================= | |
1721 | ||
1722 | When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` attribute identifies | |
1723 | the operational state of the PoDL PSE functions. The operational state of the | |
1724 | PSE function can be changed using the ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` | |
1725 | action. This option is corresponding to ``IEEE 802.3-2018`` 30.15.1.1.2 | |
1726 | aPoDLPSEAdminState. Possible values are: | |
1727 | ||
1728 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1729 | :identifiers: ethtool_podl_pse_admin_state | |
1730 | ||
1731 | When set, the optional ``ETHTOOL_A_PODL_PSE_PW_D_STATUS`` attribute identifies | |
1732 | the power detection status of the PoDL PSE. The status depend on internal PSE | |
1733 | state machine and automatic PD classification support. This option is | |
1734 | corresponding to ``IEEE 802.3-2018`` 30.15.1.1.3 aPoDLPSEPowerDetectionStatus. | |
1735 | Possible values are: | |
1736 | ||
1737 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1738 | :identifiers: ethtool_podl_pse_pw_d_status | |
1739 | ||
1740 | PSE_SET | |
1741 | ======= | |
1742 | ||
1743 | Sets PSE parameters. | |
1744 | ||
1745 | Request contents: | |
1746 | ||
1747 | ====================================== ====== ============================= | |
1748 | ``ETHTOOL_A_PSE_HEADER`` nested request header | |
1749 | ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` u32 Control PoDL PSE Admin state | |
1750 | ====================================== ====== ============================= | |
1751 | ||
1752 | When set, the optional ``ETHTOOL_A_PODL_PSE_ADMIN_CONTROL`` attribute is used | |
1753 | to control PoDL PSE Admin functions. This option is implementing | |
1754 | ``IEEE 802.3-2018`` 30.15.1.2.1 acPoDLPSEAdminControl. See | |
1755 | ``ETHTOOL_A_PODL_PSE_ADMIN_STATE`` for supported values. | |
1756 | ||
7112a046 SM |
1757 | RSS_GET |
1758 | ======= | |
1759 | ||
1760 | Get indirection table, hash key and hash function info associated with a | |
1761 | RSS context of an interface similar to ``ETHTOOL_GRSSH`` ioctl request. | |
1762 | ||
1763 | Request contents: | |
1764 | ||
1765 | ===================================== ====== ========================== | |
1766 | ``ETHTOOL_A_RSS_HEADER`` nested request header | |
1767 | ``ETHTOOL_A_RSS_CONTEXT`` u32 context number | |
1768 | ===================================== ====== ========================== | |
1769 | ||
1770 | Kernel response contents: | |
1771 | ||
1772 | ===================================== ====== ========================== | |
1773 | ``ETHTOOL_A_RSS_HEADER`` nested reply header | |
1774 | ``ETHTOOL_A_RSS_HFUNC`` u32 RSS hash func | |
1775 | ``ETHTOOL_A_RSS_INDIR`` binary Indir table bytes | |
1776 | ``ETHTOOL_A_RSS_HKEY`` binary Hash key bytes | |
1777 | ===================================== ====== ========================== | |
1778 | ||
1779 | ETHTOOL_A_RSS_HFUNC attribute is bitmap indicating the hash function | |
1780 | being used. Current supported options are toeplitz, xor or crc32. | |
1781 | ETHTOOL_A_RSS_INDIR attribute returns RSS indrection table where each byte | |
1782 | indicates queue number. | |
1783 | ||
8580e16c PB |
1784 | PLCA_GET_CFG |
1785 | ============ | |
1786 | ||
1787 | Gets the IEEE 802.3cg-2019 Clause 148 Physical Layer Collision Avoidance | |
1788 | (PLCA) Reconciliation Sublayer (RS) attributes. | |
1789 | ||
1790 | Request contents: | |
1791 | ||
1792 | ===================================== ====== ========================== | |
1793 | ``ETHTOOL_A_PLCA_HEADER`` nested request header | |
1794 | ===================================== ====== ========================== | |
1795 | ||
1796 | Kernel response contents: | |
1797 | ||
1798 | ====================================== ====== ============================= | |
1799 | ``ETHTOOL_A_PLCA_HEADER`` nested reply header | |
1800 | ``ETHTOOL_A_PLCA_VERSION`` u16 Supported PLCA management | |
1801 | interface standard/version | |
1802 | ``ETHTOOL_A_PLCA_ENABLED`` u8 PLCA Admin State | |
1803 | ``ETHTOOL_A_PLCA_NODE_ID`` u32 PLCA unique local node ID | |
1804 | ``ETHTOOL_A_PLCA_NODE_CNT`` u32 Number of PLCA nodes on the | |
1805 | network, including the | |
1806 | coordinator | |
1807 | ``ETHTOOL_A_PLCA_TO_TMR`` u32 Transmit Opportunity Timer | |
1808 | value in bit-times (BT) | |
1809 | ``ETHTOOL_A_PLCA_BURST_CNT`` u32 Number of additional packets | |
1810 | the node is allowed to send | |
1811 | within a single TO | |
1812 | ``ETHTOOL_A_PLCA_BURST_TMR`` u32 Time to wait for the MAC to | |
1813 | transmit a new frame before | |
1814 | terminating the burst | |
1815 | ====================================== ====== ============================= | |
1816 | ||
1817 | When set, the optional ``ETHTOOL_A_PLCA_VERSION`` attribute indicates which | |
1818 | standard and version the PLCA management interface complies to. When not set, | |
1819 | the interface is vendor-specific and (possibly) supplied by the driver. | |
1820 | The OPEN Alliance SIG specifies a standard register map for 10BASE-T1S PHYs | |
1821 | embedding the PLCA Reconcialiation Sublayer. See "10BASE-T1S PLCA Management | |
1822 | Registers" at https://www.opensig.org/about/specifications/. | |
1823 | ||
1824 | When set, the optional ``ETHTOOL_A_PLCA_ENABLED`` attribute indicates the | |
1825 | administrative state of the PLCA RS. When not set, the node operates in "plain" | |
1826 | CSMA/CD mode. This option is corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.1 | |
1827 | aPLCAAdminState / 30.16.1.2.1 acPLCAAdminControl. | |
1828 | ||
1829 | When set, the optional ``ETHTOOL_A_PLCA_NODE_ID`` attribute indicates the | |
1830 | configured local node ID of the PHY. This ID determines which transmit | |
1831 | opportunity (TO) is reserved for the node to transmit into. This option is | |
1832 | corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.4 aPLCALocalNodeID. The valid | |
1833 | range for this attribute is [0 .. 255] where 255 means "not configured". | |
1834 | ||
1835 | When set, the optional ``ETHTOOL_A_PLCA_NODE_CNT`` attribute indicates the | |
1836 | configured maximum number of PLCA nodes on the mixing-segment. This number | |
1837 | determines the total number of transmit opportunities generated during a | |
1838 | PLCA cycle. This attribute is relevant only for the PLCA coordinator, which is | |
1839 | the node with aPLCALocalNodeID set to 0. Follower nodes ignore this setting. | |
1840 | This option is corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.3 | |
1841 | aPLCANodeCount. The valid range for this attribute is [1 .. 255]. | |
1842 | ||
1843 | When set, the optional ``ETHTOOL_A_PLCA_TO_TMR`` attribute indicates the | |
1844 | configured value of the transmit opportunity timer in bit-times. This value | |
1845 | must be set equal across all nodes sharing the medium for PLCA to work | |
1846 | correctly. This option is corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.5 | |
1847 | aPLCATransmitOpportunityTimer. The valid range for this attribute is | |
1848 | [0 .. 255]. | |
1849 | ||
1850 | When set, the optional ``ETHTOOL_A_PLCA_BURST_CNT`` attribute indicates the | |
1851 | configured number of extra packets that the node is allowed to send during a | |
1852 | single transmit opportunity. By default, this attribute is 0, meaning that | |
a266ef69 | 1853 | the node can only send a single frame per TO. When greater than 0, the PLCA RS |
8580e16c PB |
1854 | keeps the TO after any transmission, waiting for the MAC to send a new frame |
1855 | for up to aPLCABurstTimer BTs. This can only happen a number of times per PLCA | |
1856 | cycle up to the value of this parameter. After that, the burst is over and the | |
1857 | normal counting of TOs resumes. This option is corresponding to | |
1858 | ``IEEE 802.3cg-2019`` 30.16.1.1.6 aPLCAMaxBurstCount. The valid range for this | |
1859 | attribute is [0 .. 255]. | |
1860 | ||
1861 | When set, the optional ``ETHTOOL_A_PLCA_BURST_TMR`` attribute indicates how | |
1862 | many bit-times the PLCA RS waits for the MAC to initiate a new transmission | |
1863 | when aPLCAMaxBurstCount is greater than 0. If the MAC fails to send a new | |
1864 | frame within this time, the burst ends and the counting of TOs resumes. | |
1865 | Otherwise, the new frame is sent as part of the current burst. This option | |
1866 | is corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.7 aPLCABurstTimer. The | |
1867 | valid range for this attribute is [0 .. 255]. Although, the value should be | |
1868 | set greater than the Inter-Frame-Gap (IFG) time of the MAC (plus some margin) | |
1869 | for PLCA burst mode to work as intended. | |
1870 | ||
1871 | PLCA_SET_CFG | |
1872 | ============ | |
1873 | ||
1874 | Sets PLCA RS parameters. | |
1875 | ||
1876 | Request contents: | |
1877 | ||
1878 | ====================================== ====== ============================= | |
1879 | ``ETHTOOL_A_PLCA_HEADER`` nested request header | |
1880 | ``ETHTOOL_A_PLCA_ENABLED`` u8 PLCA Admin State | |
1881 | ``ETHTOOL_A_PLCA_NODE_ID`` u8 PLCA unique local node ID | |
1882 | ``ETHTOOL_A_PLCA_NODE_CNT`` u8 Number of PLCA nodes on the | |
1883 | netkork, including the | |
1884 | coordinator | |
1885 | ``ETHTOOL_A_PLCA_TO_TMR`` u8 Transmit Opportunity Timer | |
1886 | value in bit-times (BT) | |
1887 | ``ETHTOOL_A_PLCA_BURST_CNT`` u8 Number of additional packets | |
1888 | the node is allowed to send | |
1889 | within a single TO | |
1890 | ``ETHTOOL_A_PLCA_BURST_TMR`` u8 Time to wait for the MAC to | |
1891 | transmit a new frame before | |
1892 | terminating the burst | |
1893 | ====================================== ====== ============================= | |
1894 | ||
1895 | For a description of each attribute, see ``PLCA_GET_CFG``. | |
1896 | ||
1897 | PLCA_GET_STATUS | |
1898 | =============== | |
1899 | ||
1900 | Gets PLCA RS status information. | |
1901 | ||
1902 | Request contents: | |
1903 | ||
1904 | ===================================== ====== ========================== | |
1905 | ``ETHTOOL_A_PLCA_HEADER`` nested request header | |
1906 | ===================================== ====== ========================== | |
1907 | ||
1908 | Kernel response contents: | |
1909 | ||
1910 | ====================================== ====== ============================= | |
1911 | ``ETHTOOL_A_PLCA_HEADER`` nested reply header | |
1912 | ``ETHTOOL_A_PLCA_STATUS`` u8 PLCA RS operational status | |
1913 | ====================================== ====== ============================= | |
1914 | ||
1915 | When set, the ``ETHTOOL_A_PLCA_STATUS`` attribute indicates whether the node is | |
1916 | detecting the presence of the BEACON on the network. This flag is | |
1917 | corresponding to ``IEEE 802.3cg-2019`` 30.16.1.1.2 aPLCAStatus. | |
1918 | ||
37000004 VO |
1919 | MM_GET |
1920 | ====== | |
1921 | ||
1922 | Retrieve 802.3 MAC Merge parameters. | |
1923 | ||
1924 | Request contents: | |
1925 | ||
1926 | ==================================== ====== ========================== | |
1927 | ``ETHTOOL_A_MM_HEADER`` nested request header | |
1928 | ==================================== ====== ========================== | |
1929 | ||
1930 | Kernel response contents: | |
1931 | ||
1932 | ================================= ====== =================================== | |
1933 | ``ETHTOOL_A_MM_HEADER`` nested request header | |
1934 | ``ETHTOOL_A_MM_PMAC_ENABLED`` bool set if RX of preemptible and SMD-V | |
1935 | frames is enabled | |
1936 | ``ETHTOOL_A_MM_TX_ENABLED`` bool set if TX of preemptible frames is | |
1937 | administratively enabled (might be | |
1938 | inactive if verification failed) | |
1939 | ``ETHTOOL_A_MM_TX_ACTIVE`` bool set if TX of preemptible frames is | |
1940 | operationally enabled | |
1941 | ``ETHTOOL_A_MM_TX_MIN_FRAG_SIZE`` u32 minimum size of transmitted | |
1942 | non-final fragments, in octets | |
1943 | ``ETHTOOL_A_MM_RX_MIN_FRAG_SIZE`` u32 minimum size of received non-final | |
1944 | fragments, in octets | |
1945 | ``ETHTOOL_A_MM_VERIFY_ENABLED`` bool set if TX of SMD-V frames is | |
1946 | administratively enabled | |
1947 | ``ETHTOOL_A_MM_VERIFY_STATUS`` u8 state of the verification function | |
1948 | ``ETHTOOL_A_MM_VERIFY_TIME`` u32 delay between verification attempts | |
1949 | ``ETHTOOL_A_MM_MAX_VERIFY_TIME``` u32 maximum verification interval | |
1950 | supported by device | |
1951 | ``ETHTOOL_A_MM_STATS`` nested IEEE 802.3-2018 subclause 30.14.1 | |
1952 | oMACMergeEntity statistics counters | |
1953 | ================================= ====== =================================== | |
1954 | ||
1955 | The attributes are populated by the device driver through the following | |
1956 | structure: | |
1957 | ||
1958 | .. kernel-doc:: include/linux/ethtool.h | |
1959 | :identifiers: ethtool_mm_state | |
1960 | ||
1961 | The ``ETHTOOL_A_MM_VERIFY_STATUS`` will report one of the values from | |
1962 | ||
1963 | .. kernel-doc:: include/uapi/linux/ethtool.h | |
1964 | :identifiers: ethtool_mm_verify_status | |
1965 | ||
1966 | If ``ETHTOOL_A_MM_VERIFY_ENABLED`` was passed as false in the ``MM_SET`` | |
1967 | command, ``ETHTOOL_A_MM_VERIFY_STATUS`` will report either | |
1968 | ``ETHTOOL_MM_VERIFY_STATUS_INITIAL`` or ``ETHTOOL_MM_VERIFY_STATUS_DISABLED``, | |
1969 | otherwise it should report one of the other states. | |
1970 | ||
1971 | It is recommended that drivers start with the pMAC disabled, and enable it upon | |
1972 | user space request. It is also recommended that user space does not depend upon | |
1973 | the default values from ``ETHTOOL_MSG_MM_GET`` requests. | |
1974 | ||
1975 | ``ETHTOOL_A_MM_STATS`` are reported if ``ETHTOOL_FLAG_STATS`` was set in | |
1976 | ``ETHTOOL_A_HEADER_FLAGS``. The attribute will be empty if driver did not | |
1977 | report any statistics. Drivers fill in the statistics in the following | |
1978 | structure: | |
1979 | ||
1980 | .. kernel-doc:: include/linux/ethtool.h | |
1981 | :identifiers: ethtool_mm_stats | |
1982 | ||
1983 | MM_SET | |
1984 | ====== | |
1985 | ||
1986 | Modifies the configuration of the 802.3 MAC Merge layer. | |
1987 | ||
1988 | Request contents: | |
1989 | ||
1990 | ================================= ====== ========================== | |
1991 | ``ETHTOOL_A_MM_VERIFY_TIME`` u32 see MM_GET description | |
1992 | ``ETHTOOL_A_MM_VERIFY_ENABLED`` bool see MM_GET description | |
1993 | ``ETHTOOL_A_MM_TX_ENABLED`` bool see MM_GET description | |
1994 | ``ETHTOOL_A_MM_PMAC_ENABLED`` bool see MM_GET description | |
1995 | ``ETHTOOL_A_MM_TX_MIN_FRAG_SIZE`` u32 see MM_GET description | |
1996 | ================================= ====== ========================== | |
1997 | ||
1998 | The attributes are propagated to the driver through the following structure: | |
1999 | ||
2000 | .. kernel-doc:: include/linux/ethtool.h | |
2001 | :identifiers: ethtool_mm_cfg | |
2002 | ||
2b4a8990 MK |
2003 | Request translation |
2004 | =================== | |
2005 | ||
2006 | The following table maps ioctl commands to netlink commands providing their | |
2007 | functionality. Entries with "n/a" in right column are commands which do not | |
11ca3c42 AL |
2008 | have their netlink replacement yet. Entries which "n/a" in the left column |
2009 | are netlink only. | |
2b4a8990 MK |
2010 | |
2011 | =================================== ===================================== | |
2012 | ioctl command netlink command | |
2013 | =================================== ===================================== | |
459e0b81 | 2014 | ``ETHTOOL_GSET`` ``ETHTOOL_MSG_LINKINFO_GET`` |
f625aa9b | 2015 | ``ETHTOOL_MSG_LINKMODES_GET`` |
a53f3d41 | 2016 | ``ETHTOOL_SSET`` ``ETHTOOL_MSG_LINKINFO_SET`` |
bfbcfe20 | 2017 | ``ETHTOOL_MSG_LINKMODES_SET`` |
2b4a8990 MK |
2018 | ``ETHTOOL_GDRVINFO`` n/a |
2019 | ``ETHTOOL_GREGS`` n/a | |
51ea22b0 | 2020 | ``ETHTOOL_GWOL`` ``ETHTOOL_MSG_WOL_GET`` |
8d425b19 | 2021 | ``ETHTOOL_SWOL`` ``ETHTOOL_MSG_WOL_SET`` |
6a94b8cc | 2022 | ``ETHTOOL_GMSGLVL`` ``ETHTOOL_MSG_DEBUG_GET`` |
e54d04e3 | 2023 | ``ETHTOOL_SMSGLVL`` ``ETHTOOL_MSG_DEBUG_SET`` |
2b4a8990 | 2024 | ``ETHTOOL_NWAY_RST`` n/a |
3d2b847f | 2025 | ``ETHTOOL_GLINK`` ``ETHTOOL_MSG_LINKSTATE_GET`` |
2b4a8990 MK |
2026 | ``ETHTOOL_GEEPROM`` n/a |
2027 | ``ETHTOOL_SEEPROM`` n/a | |
21727545 | 2028 | ``ETHTOOL_GCOALESCE`` ``ETHTOOL_MSG_COALESCE_GET`` |
9881418c | 2029 | ``ETHTOOL_SCOALESCE`` ``ETHTOOL_MSG_COALESCE_SET`` |
e4a1717b | 2030 | ``ETHTOOL_GRINGPARAM`` ``ETHTOOL_MSG_RINGS_GET`` |
2fc2929e | 2031 | ``ETHTOOL_SRINGPARAM`` ``ETHTOOL_MSG_RINGS_SET`` |
7f59fb32 | 2032 | ``ETHTOOL_GPAUSEPARAM`` ``ETHTOOL_MSG_PAUSE_GET`` |
3ab87993 | 2033 | ``ETHTOOL_SPAUSEPARAM`` ``ETHTOOL_MSG_PAUSE_SET`` |
0524399d | 2034 | ``ETHTOOL_GRXCSUM`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2035 | ``ETHTOOL_SRXCSUM`` ``ETHTOOL_MSG_FEATURES_SET`` |
0524399d | 2036 | ``ETHTOOL_GTXCSUM`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2037 | ``ETHTOOL_STXCSUM`` ``ETHTOOL_MSG_FEATURES_SET`` |
0524399d | 2038 | ``ETHTOOL_GSG`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2039 | ``ETHTOOL_SSG`` ``ETHTOOL_MSG_FEATURES_SET`` |
2b4a8990 | 2040 | ``ETHTOOL_TEST`` n/a |
71921690 | 2041 | ``ETHTOOL_GSTRINGS`` ``ETHTOOL_MSG_STRSET_GET`` |
2b4a8990 MK |
2042 | ``ETHTOOL_PHYS_ID`` n/a |
2043 | ``ETHTOOL_GSTATS`` n/a | |
0524399d | 2044 | ``ETHTOOL_GTSO`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2045 | ``ETHTOOL_STSO`` ``ETHTOOL_MSG_FEATURES_SET`` |
2b4a8990 | 2046 | ``ETHTOOL_GPERMADDR`` rtnetlink ``RTM_GETLINK`` |
0524399d | 2047 | ``ETHTOOL_GUFO`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2048 | ``ETHTOOL_SUFO`` ``ETHTOOL_MSG_FEATURES_SET`` |
0524399d | 2049 | ``ETHTOOL_GGSO`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2050 | ``ETHTOOL_SGSO`` ``ETHTOOL_MSG_FEATURES_SET`` |
0524399d | 2051 | ``ETHTOOL_GFLAGS`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2052 | ``ETHTOOL_SFLAGS`` ``ETHTOOL_MSG_FEATURES_SET`` |
e16c3386 | 2053 | ``ETHTOOL_GPFLAGS`` ``ETHTOOL_MSG_PRIVFLAGS_GET`` |
f265d799 | 2054 | ``ETHTOOL_SPFLAGS`` ``ETHTOOL_MSG_PRIVFLAGS_SET`` |
2b4a8990 MK |
2055 | ``ETHTOOL_GRXFH`` n/a |
2056 | ``ETHTOOL_SRXFH`` n/a | |
0524399d | 2057 | ``ETHTOOL_GGRO`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2058 | ``ETHTOOL_SGRO`` ``ETHTOOL_MSG_FEATURES_SET`` |
2b4a8990 MK |
2059 | ``ETHTOOL_GRXRINGS`` n/a |
2060 | ``ETHTOOL_GRXCLSRLCNT`` n/a | |
2061 | ``ETHTOOL_GRXCLSRULE`` n/a | |
2062 | ``ETHTOOL_GRXCLSRLALL`` n/a | |
2063 | ``ETHTOOL_SRXCLSRLDEL`` n/a | |
2064 | ``ETHTOOL_SRXCLSRLINS`` n/a | |
2065 | ``ETHTOOL_FLASHDEV`` n/a | |
2066 | ``ETHTOOL_RESET`` n/a | |
2067 | ``ETHTOOL_SRXNTUPLE`` n/a | |
2068 | ``ETHTOOL_GRXNTUPLE`` n/a | |
71921690 | 2069 | ``ETHTOOL_GSSET_INFO`` ``ETHTOOL_MSG_STRSET_GET`` |
2b4a8990 MK |
2070 | ``ETHTOOL_GRXFHINDIR`` n/a |
2071 | ``ETHTOOL_SRXFHINDIR`` n/a | |
0524399d | 2072 | ``ETHTOOL_GFEATURES`` ``ETHTOOL_MSG_FEATURES_GET`` |
0980bfcd | 2073 | ``ETHTOOL_SFEATURES`` ``ETHTOOL_MSG_FEATURES_SET`` |
0c84979c | 2074 | ``ETHTOOL_GCHANNELS`` ``ETHTOOL_MSG_CHANNELS_GET`` |
e19c591e | 2075 | ``ETHTOOL_SCHANNELS`` ``ETHTOOL_MSG_CHANNELS_SET`` |
2b4a8990 MK |
2076 | ``ETHTOOL_SET_DUMP`` n/a |
2077 | ``ETHTOOL_GET_DUMP_FLAG`` n/a | |
2078 | ``ETHTOOL_GET_DUMP_DATA`` n/a | |
5b071c59 | 2079 | ``ETHTOOL_GET_TS_INFO`` ``ETHTOOL_MSG_TSINFO_GET`` |
c781ff12 VT |
2080 | ``ETHTOOL_GMODULEINFO`` ``ETHTOOL_MSG_MODULE_EEPROM_GET`` |
2081 | ``ETHTOOL_GMODULEEEPROM`` ``ETHTOOL_MSG_MODULE_EEPROM_GET`` | |
b7eeefe7 | 2082 | ``ETHTOOL_GEEE`` ``ETHTOOL_MSG_EEE_GET`` |
fd77be7b | 2083 | ``ETHTOOL_SEEE`` ``ETHTOOL_MSG_EEE_SET`` |
7112a046 | 2084 | ``ETHTOOL_GRSSH`` ``ETHTOOL_MSG_RSS_GET`` |
2b4a8990 MK |
2085 | ``ETHTOOL_SRSSH`` n/a |
2086 | ``ETHTOOL_GTUNABLE`` n/a | |
2087 | ``ETHTOOL_STUNABLE`` n/a | |
2088 | ``ETHTOOL_GPHYSTATS`` n/a | |
2089 | ``ETHTOOL_PERQUEUE`` n/a | |
459e0b81 | 2090 | ``ETHTOOL_GLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_GET`` |
f625aa9b | 2091 | ``ETHTOOL_MSG_LINKMODES_GET`` |
a53f3d41 | 2092 | ``ETHTOOL_SLINKSETTINGS`` ``ETHTOOL_MSG_LINKINFO_SET`` |
bfbcfe20 | 2093 | ``ETHTOOL_MSG_LINKMODES_SET`` |
2b4a8990 MK |
2094 | ``ETHTOOL_PHY_GTUNABLE`` n/a |
2095 | ``ETHTOOL_PHY_STUNABLE`` n/a | |
1e5d1f69 JK |
2096 | ``ETHTOOL_GFECPARAM`` ``ETHTOOL_MSG_FEC_GET`` |
2097 | ``ETHTOOL_SFECPARAM`` ``ETHTOOL_MSG_FEC_SET`` | |
0b35e0de JK |
2098 | n/a ``ETHTOOL_MSG_CABLE_TEST_ACT`` |
2099 | n/a ``ETHTOOL_MSG_CABLE_TEST_TDR_ACT`` | |
19a83d36 | 2100 | n/a ``ETHTOOL_MSG_TUNNEL_INFO_GET`` |
c156174a | 2101 | n/a ``ETHTOOL_MSG_PHC_VCLOCKS_GET`` |
353407d9 IS |
2102 | n/a ``ETHTOOL_MSG_MODULE_GET`` |
2103 | n/a ``ETHTOOL_MSG_MODULE_SET`` | |
8580e16c PB |
2104 | n/a ``ETHTOOL_MSG_PLCA_GET_CFG`` |
2105 | n/a ``ETHTOOL_MSG_PLCA_SET_CFG`` | |
2106 | n/a ``ETHTOOL_MSG_PLCA_GET_STATUS`` | |
37000004 VO |
2107 | n/a ``ETHTOOL_MSG_MM_GET`` |
2108 | n/a ``ETHTOOL_MSG_MM_SET`` | |
2b4a8990 | 2109 | =================================== ===================================== |