xref: /linux/net/ethtool/common.c (revision 4f3c8320c78cdd11c8fdd23c33787407f719322e)
1 // SPDX-License-Identifier: GPL-2.0-only
2 
3 #include <linux/ethtool_netlink.h>
4 #include <linux/net_tstamp.h>
5 #include <linux/phy.h>
6 #include <linux/rtnetlink.h>
7 
8 #include "common.h"
9 
10 const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
11 	[NETIF_F_SG_BIT] =               "tx-scatter-gather",
12 	[NETIF_F_IP_CSUM_BIT] =          "tx-checksum-ipv4",
13 	[NETIF_F_HW_CSUM_BIT] =          "tx-checksum-ip-generic",
14 	[NETIF_F_IPV6_CSUM_BIT] =        "tx-checksum-ipv6",
15 	[NETIF_F_HIGHDMA_BIT] =          "highdma",
16 	[NETIF_F_FRAGLIST_BIT] =         "tx-scatter-gather-fraglist",
17 	[NETIF_F_HW_VLAN_CTAG_TX_BIT] =  "tx-vlan-hw-insert",
18 
19 	[NETIF_F_HW_VLAN_CTAG_RX_BIT] =  "rx-vlan-hw-parse",
20 	[NETIF_F_HW_VLAN_CTAG_FILTER_BIT] = "rx-vlan-filter",
21 	[NETIF_F_HW_VLAN_STAG_TX_BIT] =  "tx-vlan-stag-hw-insert",
22 	[NETIF_F_HW_VLAN_STAG_RX_BIT] =  "rx-vlan-stag-hw-parse",
23 	[NETIF_F_HW_VLAN_STAG_FILTER_BIT] = "rx-vlan-stag-filter",
24 	[NETIF_F_VLAN_CHALLENGED_BIT] =  "vlan-challenged",
25 	[NETIF_F_GSO_BIT] =              "tx-generic-segmentation",
26 	[NETIF_F_LLTX_BIT] =             "tx-lockless",
27 	[NETIF_F_NETNS_LOCAL_BIT] =      "netns-local",
28 	[NETIF_F_GRO_BIT] =              "rx-gro",
29 	[NETIF_F_GRO_HW_BIT] =           "rx-gro-hw",
30 	[NETIF_F_LRO_BIT] =              "rx-lro",
31 
32 	[NETIF_F_TSO_BIT] =              "tx-tcp-segmentation",
33 	[NETIF_F_GSO_ROBUST_BIT] =       "tx-gso-robust",
34 	[NETIF_F_TSO_ECN_BIT] =          "tx-tcp-ecn-segmentation",
35 	[NETIF_F_TSO_MANGLEID_BIT] =	 "tx-tcp-mangleid-segmentation",
36 	[NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
37 	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
38 	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
39 	[NETIF_F_GSO_GRE_CSUM_BIT] =	 "tx-gre-csum-segmentation",
40 	[NETIF_F_GSO_IPXIP4_BIT] =	 "tx-ipxip4-segmentation",
41 	[NETIF_F_GSO_IPXIP6_BIT] =	 "tx-ipxip6-segmentation",
42 	[NETIF_F_GSO_UDP_TUNNEL_BIT] =	 "tx-udp_tnl-segmentation",
43 	[NETIF_F_GSO_UDP_TUNNEL_CSUM_BIT] = "tx-udp_tnl-csum-segmentation",
44 	[NETIF_F_GSO_PARTIAL_BIT] =	 "tx-gso-partial",
45 	[NETIF_F_GSO_TUNNEL_REMCSUM_BIT] = "tx-tunnel-remcsum-segmentation",
46 	[NETIF_F_GSO_SCTP_BIT] =	 "tx-sctp-segmentation",
47 	[NETIF_F_GSO_ESP_BIT] =		 "tx-esp-segmentation",
48 	[NETIF_F_GSO_UDP_L4_BIT] =	 "tx-udp-segmentation",
49 	[NETIF_F_GSO_FRAGLIST_BIT] =	 "tx-gso-list",
50 
51 	[NETIF_F_FCOE_CRC_BIT] =         "tx-checksum-fcoe-crc",
52 	[NETIF_F_SCTP_CRC_BIT] =        "tx-checksum-sctp",
53 	[NETIF_F_FCOE_MTU_BIT] =         "fcoe-mtu",
54 	[NETIF_F_NTUPLE_BIT] =           "rx-ntuple-filter",
55 	[NETIF_F_RXHASH_BIT] =           "rx-hashing",
56 	[NETIF_F_RXCSUM_BIT] =           "rx-checksum",
57 	[NETIF_F_NOCACHE_COPY_BIT] =     "tx-nocache-copy",
58 	[NETIF_F_LOOPBACK_BIT] =         "loopback",
59 	[NETIF_F_RXFCS_BIT] =            "rx-fcs",
60 	[NETIF_F_RXALL_BIT] =            "rx-all",
61 	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
62 	[NETIF_F_HW_TC_BIT] =		 "hw-tc-offload",
63 	[NETIF_F_HW_ESP_BIT] =		 "esp-hw-offload",
64 	[NETIF_F_HW_ESP_TX_CSUM_BIT] =	 "esp-tx-csum-hw-offload",
65 	[NETIF_F_RX_UDP_TUNNEL_PORT_BIT] =	 "rx-udp_tunnel-port-offload",
66 	[NETIF_F_HW_TLS_RECORD_BIT] =	"tls-hw-record",
67 	[NETIF_F_HW_TLS_TX_BIT] =	 "tls-hw-tx-offload",
68 	[NETIF_F_HW_TLS_RX_BIT] =	 "tls-hw-rx-offload",
69 	[NETIF_F_GRO_FRAGLIST_BIT] =	 "rx-gro-list",
70 	[NETIF_F_HW_MACSEC_BIT] =	 "macsec-hw-offload",
71 };
72 
73 const char
74 rss_hash_func_strings[ETH_RSS_HASH_FUNCS_COUNT][ETH_GSTRING_LEN] = {
75 	[ETH_RSS_HASH_TOP_BIT] =	"toeplitz",
76 	[ETH_RSS_HASH_XOR_BIT] =	"xor",
77 	[ETH_RSS_HASH_CRC32_BIT] =	"crc32",
78 };
79 
80 const char
81 tunable_strings[__ETHTOOL_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
82 	[ETHTOOL_ID_UNSPEC]     = "Unspec",
83 	[ETHTOOL_RX_COPYBREAK]	= "rx-copybreak",
84 	[ETHTOOL_TX_COPYBREAK]	= "tx-copybreak",
85 	[ETHTOOL_PFC_PREVENTION_TOUT] = "pfc-prevention-tout",
86 };
87 
88 const char
89 phy_tunable_strings[__ETHTOOL_PHY_TUNABLE_COUNT][ETH_GSTRING_LEN] = {
90 	[ETHTOOL_ID_UNSPEC]     = "Unspec",
91 	[ETHTOOL_PHY_DOWNSHIFT]	= "phy-downshift",
92 	[ETHTOOL_PHY_FAST_LINK_DOWN] = "phy-fast-link-down",
93 	[ETHTOOL_PHY_EDPD]	= "phy-energy-detect-power-down",
94 };
95 
96 #define __LINK_MODE_NAME(speed, type, duplex) \
97 	#speed "base" #type "/" #duplex
98 #define __DEFINE_LINK_MODE_NAME(speed, type, duplex) \
99 	[ETHTOOL_LINK_MODE(speed, type, duplex)] = \
100 	__LINK_MODE_NAME(speed, type, duplex)
101 #define __DEFINE_SPECIAL_MODE_NAME(_mode, _name) \
102 	[ETHTOOL_LINK_MODE_ ## _mode ## _BIT] = _name
103 
104 const char link_mode_names[][ETH_GSTRING_LEN] = {
105 	__DEFINE_LINK_MODE_NAME(10, T, Half),
106 	__DEFINE_LINK_MODE_NAME(10, T, Full),
107 	__DEFINE_LINK_MODE_NAME(100, T, Half),
108 	__DEFINE_LINK_MODE_NAME(100, T, Full),
109 	__DEFINE_LINK_MODE_NAME(1000, T, Half),
110 	__DEFINE_LINK_MODE_NAME(1000, T, Full),
111 	__DEFINE_SPECIAL_MODE_NAME(Autoneg, "Autoneg"),
112 	__DEFINE_SPECIAL_MODE_NAME(TP, "TP"),
113 	__DEFINE_SPECIAL_MODE_NAME(AUI, "AUI"),
114 	__DEFINE_SPECIAL_MODE_NAME(MII, "MII"),
115 	__DEFINE_SPECIAL_MODE_NAME(FIBRE, "FIBRE"),
116 	__DEFINE_SPECIAL_MODE_NAME(BNC, "BNC"),
117 	__DEFINE_LINK_MODE_NAME(10000, T, Full),
118 	__DEFINE_SPECIAL_MODE_NAME(Pause, "Pause"),
119 	__DEFINE_SPECIAL_MODE_NAME(Asym_Pause, "Asym_Pause"),
120 	__DEFINE_LINK_MODE_NAME(2500, X, Full),
121 	__DEFINE_SPECIAL_MODE_NAME(Backplane, "Backplane"),
122 	__DEFINE_LINK_MODE_NAME(1000, KX, Full),
123 	__DEFINE_LINK_MODE_NAME(10000, KX4, Full),
124 	__DEFINE_LINK_MODE_NAME(10000, KR, Full),
125 	__DEFINE_SPECIAL_MODE_NAME(10000baseR_FEC, "10000baseR_FEC"),
126 	__DEFINE_LINK_MODE_NAME(20000, MLD2, Full),
127 	__DEFINE_LINK_MODE_NAME(20000, KR2, Full),
128 	__DEFINE_LINK_MODE_NAME(40000, KR4, Full),
129 	__DEFINE_LINK_MODE_NAME(40000, CR4, Full),
130 	__DEFINE_LINK_MODE_NAME(40000, SR4, Full),
131 	__DEFINE_LINK_MODE_NAME(40000, LR4, Full),
132 	__DEFINE_LINK_MODE_NAME(56000, KR4, Full),
133 	__DEFINE_LINK_MODE_NAME(56000, CR4, Full),
134 	__DEFINE_LINK_MODE_NAME(56000, SR4, Full),
135 	__DEFINE_LINK_MODE_NAME(56000, LR4, Full),
136 	__DEFINE_LINK_MODE_NAME(25000, CR, Full),
137 	__DEFINE_LINK_MODE_NAME(25000, KR, Full),
138 	__DEFINE_LINK_MODE_NAME(25000, SR, Full),
139 	__DEFINE_LINK_MODE_NAME(50000, CR2, Full),
140 	__DEFINE_LINK_MODE_NAME(50000, KR2, Full),
141 	__DEFINE_LINK_MODE_NAME(100000, KR4, Full),
142 	__DEFINE_LINK_MODE_NAME(100000, SR4, Full),
143 	__DEFINE_LINK_MODE_NAME(100000, CR4, Full),
144 	__DEFINE_LINK_MODE_NAME(100000, LR4_ER4, Full),
145 	__DEFINE_LINK_MODE_NAME(50000, SR2, Full),
146 	__DEFINE_LINK_MODE_NAME(1000, X, Full),
147 	__DEFINE_LINK_MODE_NAME(10000, CR, Full),
148 	__DEFINE_LINK_MODE_NAME(10000, SR, Full),
149 	__DEFINE_LINK_MODE_NAME(10000, LR, Full),
150 	__DEFINE_LINK_MODE_NAME(10000, LRM, Full),
151 	__DEFINE_LINK_MODE_NAME(10000, ER, Full),
152 	__DEFINE_LINK_MODE_NAME(2500, T, Full),
153 	__DEFINE_LINK_MODE_NAME(5000, T, Full),
154 	__DEFINE_SPECIAL_MODE_NAME(FEC_NONE, "None"),
155 	__DEFINE_SPECIAL_MODE_NAME(FEC_RS, "RS"),
156 	__DEFINE_SPECIAL_MODE_NAME(FEC_BASER, "BASER"),
157 	__DEFINE_LINK_MODE_NAME(50000, KR, Full),
158 	__DEFINE_LINK_MODE_NAME(50000, SR, Full),
159 	__DEFINE_LINK_MODE_NAME(50000, CR, Full),
160 	__DEFINE_LINK_MODE_NAME(50000, LR_ER_FR, Full),
161 	__DEFINE_LINK_MODE_NAME(50000, DR, Full),
162 	__DEFINE_LINK_MODE_NAME(100000, KR2, Full),
163 	__DEFINE_LINK_MODE_NAME(100000, SR2, Full),
164 	__DEFINE_LINK_MODE_NAME(100000, CR2, Full),
165 	__DEFINE_LINK_MODE_NAME(100000, LR2_ER2_FR2, Full),
166 	__DEFINE_LINK_MODE_NAME(100000, DR2, Full),
167 	__DEFINE_LINK_MODE_NAME(200000, KR4, Full),
168 	__DEFINE_LINK_MODE_NAME(200000, SR4, Full),
169 	__DEFINE_LINK_MODE_NAME(200000, LR4_ER4_FR4, Full),
170 	__DEFINE_LINK_MODE_NAME(200000, DR4, Full),
171 	__DEFINE_LINK_MODE_NAME(200000, CR4, Full),
172 	__DEFINE_LINK_MODE_NAME(100, T1, Full),
173 	__DEFINE_LINK_MODE_NAME(1000, T1, Full),
174 	__DEFINE_LINK_MODE_NAME(400000, KR8, Full),
175 	__DEFINE_LINK_MODE_NAME(400000, SR8, Full),
176 	__DEFINE_LINK_MODE_NAME(400000, LR8_ER8_FR8, Full),
177 	__DEFINE_LINK_MODE_NAME(400000, DR8, Full),
178 	__DEFINE_LINK_MODE_NAME(400000, CR8, Full),
179 	__DEFINE_SPECIAL_MODE_NAME(FEC_LLRS, "LLRS"),
180 	__DEFINE_LINK_MODE_NAME(100000, KR, Full),
181 	__DEFINE_LINK_MODE_NAME(100000, SR, Full),
182 	__DEFINE_LINK_MODE_NAME(100000, LR_ER_FR, Full),
183 	__DEFINE_LINK_MODE_NAME(100000, DR, Full),
184 	__DEFINE_LINK_MODE_NAME(100000, CR, Full),
185 	__DEFINE_LINK_MODE_NAME(200000, KR2, Full),
186 	__DEFINE_LINK_MODE_NAME(200000, SR2, Full),
187 	__DEFINE_LINK_MODE_NAME(200000, LR2_ER2_FR2, Full),
188 	__DEFINE_LINK_MODE_NAME(200000, DR2, Full),
189 	__DEFINE_LINK_MODE_NAME(200000, CR2, Full),
190 	__DEFINE_LINK_MODE_NAME(400000, KR4, Full),
191 	__DEFINE_LINK_MODE_NAME(400000, SR4, Full),
192 	__DEFINE_LINK_MODE_NAME(400000, LR4_ER4_FR4, Full),
193 	__DEFINE_LINK_MODE_NAME(400000, DR4, Full),
194 	__DEFINE_LINK_MODE_NAME(400000, CR4, Full),
195 	__DEFINE_LINK_MODE_NAME(100, FX, Half),
196 	__DEFINE_LINK_MODE_NAME(100, FX, Full),
197 };
198 static_assert(ARRAY_SIZE(link_mode_names) == __ETHTOOL_LINK_MODE_MASK_NBITS);
199 
200 const char netif_msg_class_names[][ETH_GSTRING_LEN] = {
201 	[NETIF_MSG_DRV_BIT]		= "drv",
202 	[NETIF_MSG_PROBE_BIT]		= "probe",
203 	[NETIF_MSG_LINK_BIT]		= "link",
204 	[NETIF_MSG_TIMER_BIT]		= "timer",
205 	[NETIF_MSG_IFDOWN_BIT]		= "ifdown",
206 	[NETIF_MSG_IFUP_BIT]		= "ifup",
207 	[NETIF_MSG_RX_ERR_BIT]		= "rx_err",
208 	[NETIF_MSG_TX_ERR_BIT]		= "tx_err",
209 	[NETIF_MSG_TX_QUEUED_BIT]	= "tx_queued",
210 	[NETIF_MSG_INTR_BIT]		= "intr",
211 	[NETIF_MSG_TX_DONE_BIT]		= "tx_done",
212 	[NETIF_MSG_RX_STATUS_BIT]	= "rx_status",
213 	[NETIF_MSG_PKTDATA_BIT]		= "pktdata",
214 	[NETIF_MSG_HW_BIT]		= "hw",
215 	[NETIF_MSG_WOL_BIT]		= "wol",
216 };
217 static_assert(ARRAY_SIZE(netif_msg_class_names) == NETIF_MSG_CLASS_COUNT);
218 
219 const char wol_mode_names[][ETH_GSTRING_LEN] = {
220 	[const_ilog2(WAKE_PHY)]		= "phy",
221 	[const_ilog2(WAKE_UCAST)]	= "ucast",
222 	[const_ilog2(WAKE_MCAST)]	= "mcast",
223 	[const_ilog2(WAKE_BCAST)]	= "bcast",
224 	[const_ilog2(WAKE_ARP)]		= "arp",
225 	[const_ilog2(WAKE_MAGIC)]	= "magic",
226 	[const_ilog2(WAKE_MAGICSECURE)]	= "magicsecure",
227 	[const_ilog2(WAKE_FILTER)]	= "filter",
228 };
229 static_assert(ARRAY_SIZE(wol_mode_names) == WOL_MODE_COUNT);
230 
231 const char sof_timestamping_names[][ETH_GSTRING_LEN] = {
232 	[const_ilog2(SOF_TIMESTAMPING_TX_HARDWARE)]  = "hardware-transmit",
233 	[const_ilog2(SOF_TIMESTAMPING_TX_SOFTWARE)]  = "software-transmit",
234 	[const_ilog2(SOF_TIMESTAMPING_RX_HARDWARE)]  = "hardware-receive",
235 	[const_ilog2(SOF_TIMESTAMPING_RX_SOFTWARE)]  = "software-receive",
236 	[const_ilog2(SOF_TIMESTAMPING_SOFTWARE)]     = "software-system-clock",
237 	[const_ilog2(SOF_TIMESTAMPING_SYS_HARDWARE)] = "hardware-legacy-clock",
238 	[const_ilog2(SOF_TIMESTAMPING_RAW_HARDWARE)] = "hardware-raw-clock",
239 	[const_ilog2(SOF_TIMESTAMPING_OPT_ID)]       = "option-id",
240 	[const_ilog2(SOF_TIMESTAMPING_TX_SCHED)]     = "sched-transmit",
241 	[const_ilog2(SOF_TIMESTAMPING_TX_ACK)]       = "ack-transmit",
242 	[const_ilog2(SOF_TIMESTAMPING_OPT_CMSG)]     = "option-cmsg",
243 	[const_ilog2(SOF_TIMESTAMPING_OPT_TSONLY)]   = "option-tsonly",
244 	[const_ilog2(SOF_TIMESTAMPING_OPT_STATS)]    = "option-stats",
245 	[const_ilog2(SOF_TIMESTAMPING_OPT_PKTINFO)]  = "option-pktinfo",
246 	[const_ilog2(SOF_TIMESTAMPING_OPT_TX_SWHW)]  = "option-tx-swhw",
247 };
248 static_assert(ARRAY_SIZE(sof_timestamping_names) == __SOF_TIMESTAMPING_CNT);
249 
250 const char ts_tx_type_names[][ETH_GSTRING_LEN] = {
251 	[HWTSTAMP_TX_OFF]		= "off",
252 	[HWTSTAMP_TX_ON]		= "on",
253 	[HWTSTAMP_TX_ONESTEP_SYNC]	= "onestep-sync",
254 	[HWTSTAMP_TX_ONESTEP_P2P]	= "onestep-p2p",
255 };
256 static_assert(ARRAY_SIZE(ts_tx_type_names) == __HWTSTAMP_TX_CNT);
257 
258 const char ts_rx_filter_names[][ETH_GSTRING_LEN] = {
259 	[HWTSTAMP_FILTER_NONE]			= "none",
260 	[HWTSTAMP_FILTER_ALL]			= "all",
261 	[HWTSTAMP_FILTER_SOME]			= "some",
262 	[HWTSTAMP_FILTER_PTP_V1_L4_EVENT]	= "ptpv1-l4-event",
263 	[HWTSTAMP_FILTER_PTP_V1_L4_SYNC]	= "ptpv1-l4-sync",
264 	[HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ]	= "ptpv1-l4-delay-req",
265 	[HWTSTAMP_FILTER_PTP_V2_L4_EVENT]	= "ptpv2-l4-event",
266 	[HWTSTAMP_FILTER_PTP_V2_L4_SYNC]	= "ptpv2-l4-sync",
267 	[HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ]	= "ptpv2-l4-delay-req",
268 	[HWTSTAMP_FILTER_PTP_V2_L2_EVENT]	= "ptpv2-l2-event",
269 	[HWTSTAMP_FILTER_PTP_V2_L2_SYNC]	= "ptpv2-l2-sync",
270 	[HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ]	= "ptpv2-l2-delay-req",
271 	[HWTSTAMP_FILTER_PTP_V2_EVENT]		= "ptpv2-event",
272 	[HWTSTAMP_FILTER_PTP_V2_SYNC]		= "ptpv2-sync",
273 	[HWTSTAMP_FILTER_PTP_V2_DELAY_REQ]	= "ptpv2-delay-req",
274 	[HWTSTAMP_FILTER_NTP_ALL]		= "ntp-all",
275 };
276 static_assert(ARRAY_SIZE(ts_rx_filter_names) == __HWTSTAMP_FILTER_CNT);
277 
278 const char udp_tunnel_type_names[][ETH_GSTRING_LEN] = {
279 	[ETHTOOL_UDP_TUNNEL_TYPE_VXLAN]		= "vxlan",
280 	[ETHTOOL_UDP_TUNNEL_TYPE_GENEVE]	= "geneve",
281 	[ETHTOOL_UDP_TUNNEL_TYPE_VXLAN_GPE]	= "vxlan-gpe",
282 };
283 static_assert(ARRAY_SIZE(udp_tunnel_type_names) ==
284 	      __ETHTOOL_UDP_TUNNEL_TYPE_CNT);
285 
286 /* return false if legacy contained non-0 deprecated fields
287  * maxtxpkt/maxrxpkt. rest of ksettings always updated
288  */
289 bool
290 convert_legacy_settings_to_link_ksettings(
291 	struct ethtool_link_ksettings *link_ksettings,
292 	const struct ethtool_cmd *legacy_settings)
293 {
294 	bool retval = true;
295 
296 	memset(link_ksettings, 0, sizeof(*link_ksettings));
297 
298 	/* This is used to tell users that driver is still using these
299 	 * deprecated legacy fields, and they should not use
300 	 * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
301 	 */
302 	if (legacy_settings->maxtxpkt ||
303 	    legacy_settings->maxrxpkt)
304 		retval = false;
305 
306 	ethtool_convert_legacy_u32_to_link_mode(
307 		link_ksettings->link_modes.supported,
308 		legacy_settings->supported);
309 	ethtool_convert_legacy_u32_to_link_mode(
310 		link_ksettings->link_modes.advertising,
311 		legacy_settings->advertising);
312 	ethtool_convert_legacy_u32_to_link_mode(
313 		link_ksettings->link_modes.lp_advertising,
314 		legacy_settings->lp_advertising);
315 	link_ksettings->base.speed
316 		= ethtool_cmd_speed(legacy_settings);
317 	link_ksettings->base.duplex
318 		= legacy_settings->duplex;
319 	link_ksettings->base.port
320 		= legacy_settings->port;
321 	link_ksettings->base.phy_address
322 		= legacy_settings->phy_address;
323 	link_ksettings->base.autoneg
324 		= legacy_settings->autoneg;
325 	link_ksettings->base.mdio_support
326 		= legacy_settings->mdio_support;
327 	link_ksettings->base.eth_tp_mdix
328 		= legacy_settings->eth_tp_mdix;
329 	link_ksettings->base.eth_tp_mdix_ctrl
330 		= legacy_settings->eth_tp_mdix_ctrl;
331 	return retval;
332 }
333 
334 int __ethtool_get_link(struct net_device *dev)
335 {
336 	if (!dev->ethtool_ops->get_link)
337 		return -EOPNOTSUPP;
338 
339 	return netif_running(dev) && dev->ethtool_ops->get_link(dev);
340 }
341 
342 int ethtool_get_max_rxfh_channel(struct net_device *dev, u32 *max)
343 {
344 	u32 dev_size, current_max = 0;
345 	u32 *indir;
346 	int ret;
347 
348 	if (!dev->ethtool_ops->get_rxfh_indir_size ||
349 	    !dev->ethtool_ops->get_rxfh)
350 		return -EOPNOTSUPP;
351 	dev_size = dev->ethtool_ops->get_rxfh_indir_size(dev);
352 	if (dev_size == 0)
353 		return -EOPNOTSUPP;
354 
355 	indir = kcalloc(dev_size, sizeof(indir[0]), GFP_USER);
356 	if (!indir)
357 		return -ENOMEM;
358 
359 	ret = dev->ethtool_ops->get_rxfh(dev, indir, NULL, NULL);
360 	if (ret)
361 		goto out;
362 
363 	while (dev_size--)
364 		current_max = max(current_max, indir[dev_size]);
365 
366 	*max = current_max;
367 
368 out:
369 	kfree(indir);
370 	return ret;
371 }
372 
373 int ethtool_check_ops(const struct ethtool_ops *ops)
374 {
375 	if (WARN_ON(ops->set_coalesce && !ops->supported_coalesce_params))
376 		return -EINVAL;
377 	/* NOTE: sufficiently insane drivers may swap ethtool_ops at runtime,
378 	 * the fact that ops are checked at registration time does not
379 	 * mean the ops attached to a netdev later on are sane.
380 	 */
381 	return 0;
382 }
383 
384 int __ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
385 {
386 	const struct ethtool_ops *ops = dev->ethtool_ops;
387 	struct phy_device *phydev = dev->phydev;
388 
389 	memset(info, 0, sizeof(*info));
390 	info->cmd = ETHTOOL_GET_TS_INFO;
391 
392 	if (phy_has_tsinfo(phydev))
393 		return phy_ts_info(phydev, info);
394 	if (ops->get_ts_info)
395 		return ops->get_ts_info(dev, info);
396 
397 	info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
398 				SOF_TIMESTAMPING_SOFTWARE;
399 	info->phc_index = -1;
400 
401 	return 0;
402 }
403 
404 const struct ethtool_phy_ops *ethtool_phy_ops;
405 
406 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops)
407 {
408 	rtnl_lock();
409 	ethtool_phy_ops = ops;
410 	rtnl_unlock();
411 }
412 EXPORT_SYMBOL_GPL(ethtool_set_ethtool_phy_ops);
413