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v4.17
 
  1/*
  2 *  FUJITSU Extended Socket Network Device driver
  3 *  Copyright (c) 2015 FUJITSU LIMITED
  4 *
  5 * This program is free software; you can redistribute it and/or modify it
  6 * under the terms and conditions of the GNU General Public License,
  7 * version 2, as published by the Free Software Foundation.
  8 *
  9 * This program is distributed in the hope it will be useful, but WITHOUT
 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 12 * more details.
 13 *
 14 * You should have received a copy of the GNU General Public License along with
 15 * this program; if not, see <http://www.gnu.org/licenses/>.
 16 *
 17 * The full GNU General Public License is included in this distribution in
 18 * the file called "COPYING".
 19 *
 20 */
 21
 22/* ethtool support for fjes */
 23
 24#include <linux/vmalloc.h>
 25#include <linux/netdevice.h>
 26#include <linux/ethtool.h>
 27#include <linux/platform_device.h>
 28
 29#include "fjes.h"
 30
 31struct fjes_stats {
 32	char stat_string[ETH_GSTRING_LEN];
 33	int sizeof_stat;
 34	int stat_offset;
 35};
 36
 37#define FJES_STAT(name, stat) { \
 38	.stat_string = name, \
 39	.sizeof_stat = FIELD_SIZEOF(struct fjes_adapter, stat), \
 40	.stat_offset = offsetof(struct fjes_adapter, stat) \
 41}
 42
 43static const struct fjes_stats fjes_gstrings_stats[] = {
 44	FJES_STAT("rx_packets", stats64.rx_packets),
 45	FJES_STAT("tx_packets", stats64.tx_packets),
 46	FJES_STAT("rx_bytes", stats64.rx_bytes),
 47	FJES_STAT("tx_bytes", stats64.rx_bytes),
 48	FJES_STAT("rx_dropped", stats64.rx_dropped),
 49	FJES_STAT("tx_dropped", stats64.tx_dropped),
 50};
 51
 52#define FJES_EP_STATS_LEN 14
 53#define FJES_STATS_LEN \
 54	(ARRAY_SIZE(fjes_gstrings_stats) + \
 55	 ((&((struct fjes_adapter *)netdev_priv(netdev))->hw)->max_epid - 1) * \
 56	 FJES_EP_STATS_LEN)
 57
 58static void fjes_get_ethtool_stats(struct net_device *netdev,
 59				   struct ethtool_stats *stats, u64 *data)
 60{
 61	struct fjes_adapter *adapter = netdev_priv(netdev);
 62	struct fjes_hw *hw = &adapter->hw;
 63	int epidx;
 64	char *p;
 65	int i;
 66
 67	for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) {
 68		p = (char *)adapter + fjes_gstrings_stats[i].stat_offset;
 69		data[i] = (fjes_gstrings_stats[i].sizeof_stat == sizeof(u64))
 70			? *(u64 *)p : *(u32 *)p;
 71	}
 72	for (epidx = 0; epidx < hw->max_epid; epidx++) {
 73		if (epidx == hw->my_epid)
 74			continue;
 75		data[i++] = hw->ep_shm_info[epidx].ep_stats
 76				.com_regist_buf_exec;
 77		data[i++] = hw->ep_shm_info[epidx].ep_stats
 78				.com_unregist_buf_exec;
 79		data[i++] = hw->ep_shm_info[epidx].ep_stats.send_intr_rx;
 80		data[i++] = hw->ep_shm_info[epidx].ep_stats.send_intr_unshare;
 81		data[i++] = hw->ep_shm_info[epidx].ep_stats
 82				.send_intr_zoneupdate;
 83		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_rx;
 84		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_unshare;
 85		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_stop;
 86		data[i++] = hw->ep_shm_info[epidx].ep_stats
 87				.recv_intr_zoneupdate;
 88		data[i++] = hw->ep_shm_info[epidx].ep_stats.tx_buffer_full;
 89		data[i++] = hw->ep_shm_info[epidx].ep_stats
 90				.tx_dropped_not_shared;
 91		data[i++] = hw->ep_shm_info[epidx].ep_stats
 92				.tx_dropped_ver_mismatch;
 93		data[i++] = hw->ep_shm_info[epidx].ep_stats
 94				.tx_dropped_buf_size_mismatch;
 95		data[i++] = hw->ep_shm_info[epidx].ep_stats
 96				.tx_dropped_vlanid_mismatch;
 97	}
 98}
 99
100static void fjes_get_strings(struct net_device *netdev,
101			     u32 stringset, u8 *data)
102{
103	struct fjes_adapter *adapter = netdev_priv(netdev);
104	struct fjes_hw *hw = &adapter->hw;
105	u8 *p = data;
106	int i;
107
108	switch (stringset) {
109	case ETH_SS_STATS:
110		for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) {
111			memcpy(p, fjes_gstrings_stats[i].stat_string,
112			       ETH_GSTRING_LEN);
113			p += ETH_GSTRING_LEN;
114		}
115		for (i = 0; i < hw->max_epid; i++) {
116			if (i == hw->my_epid)
117				continue;
118			sprintf(p, "ep%u_com_regist_buf_exec", i);
119			p += ETH_GSTRING_LEN;
120			sprintf(p, "ep%u_com_unregist_buf_exec", i);
121			p += ETH_GSTRING_LEN;
122			sprintf(p, "ep%u_send_intr_rx", i);
123			p += ETH_GSTRING_LEN;
124			sprintf(p, "ep%u_send_intr_unshare", i);
125			p += ETH_GSTRING_LEN;
126			sprintf(p, "ep%u_send_intr_zoneupdate", i);
127			p += ETH_GSTRING_LEN;
128			sprintf(p, "ep%u_recv_intr_rx", i);
129			p += ETH_GSTRING_LEN;
130			sprintf(p, "ep%u_recv_intr_unshare", i);
131			p += ETH_GSTRING_LEN;
132			sprintf(p, "ep%u_recv_intr_stop", i);
133			p += ETH_GSTRING_LEN;
134			sprintf(p, "ep%u_recv_intr_zoneupdate", i);
135			p += ETH_GSTRING_LEN;
136			sprintf(p, "ep%u_tx_buffer_full", i);
137			p += ETH_GSTRING_LEN;
138			sprintf(p, "ep%u_tx_dropped_not_shared", i);
139			p += ETH_GSTRING_LEN;
140			sprintf(p, "ep%u_tx_dropped_ver_mismatch", i);
141			p += ETH_GSTRING_LEN;
142			sprintf(p, "ep%u_tx_dropped_buf_size_mismatch", i);
143			p += ETH_GSTRING_LEN;
144			sprintf(p, "ep%u_tx_dropped_vlanid_mismatch", i);
145			p += ETH_GSTRING_LEN;
146		}
147		break;
148	}
149}
150
151static int fjes_get_sset_count(struct net_device *netdev, int sset)
152{
153	switch (sset) {
154	case ETH_SS_STATS:
155		return FJES_STATS_LEN;
156	default:
157		return -EOPNOTSUPP;
158	}
159}
160
161static void fjes_get_drvinfo(struct net_device *netdev,
162			     struct ethtool_drvinfo *drvinfo)
163{
164	struct fjes_adapter *adapter = netdev_priv(netdev);
165	struct platform_device *plat_dev;
166
167	plat_dev = adapter->plat_dev;
168
169	strlcpy(drvinfo->driver, fjes_driver_name, sizeof(drvinfo->driver));
170	strlcpy(drvinfo->version, fjes_driver_version,
171		sizeof(drvinfo->version));
172
173	strlcpy(drvinfo->fw_version, "none", sizeof(drvinfo->fw_version));
174	snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info),
175		 "platform:%s", plat_dev->name);
176}
177
178static int fjes_get_link_ksettings(struct net_device *netdev,
179				   struct ethtool_link_ksettings *ecmd)
180{
181	ethtool_link_ksettings_zero_link_mode(ecmd, supported);
182	ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
183	ecmd->base.duplex = DUPLEX_FULL;
184	ecmd->base.autoneg = AUTONEG_DISABLE;
185	ecmd->base.port = PORT_NONE;
186	ecmd->base.speed = 20000;	/* 20Gb/s */
187
188	return 0;
189}
190
191static int fjes_get_regs_len(struct net_device *netdev)
192{
193#define FJES_REGS_LEN	37
194	return FJES_REGS_LEN * sizeof(u32);
195}
196
197static void fjes_get_regs(struct net_device *netdev,
198			  struct ethtool_regs *regs, void *p)
199{
200	struct fjes_adapter *adapter = netdev_priv(netdev);
201	struct fjes_hw *hw = &adapter->hw;
202	u32 *regs_buff = p;
203
204	memset(p, 0, FJES_REGS_LEN * sizeof(u32));
205
206	regs->version = 1;
207
208	/* Information registers */
209	regs_buff[0] = rd32(XSCT_OWNER_EPID);
210	regs_buff[1] = rd32(XSCT_MAX_EP);
211
212	/* Device Control registers */
213	regs_buff[4] = rd32(XSCT_DCTL);
214
215	/* Command Control registers */
216	regs_buff[8] = rd32(XSCT_CR);
217	regs_buff[9] = rd32(XSCT_CS);
218	regs_buff[10] = rd32(XSCT_SHSTSAL);
219	regs_buff[11] = rd32(XSCT_SHSTSAH);
220
221	regs_buff[13] = rd32(XSCT_REQBL);
222	regs_buff[14] = rd32(XSCT_REQBAL);
223	regs_buff[15] = rd32(XSCT_REQBAH);
224
225	regs_buff[17] = rd32(XSCT_RESPBL);
226	regs_buff[18] = rd32(XSCT_RESPBAL);
227	regs_buff[19] = rd32(XSCT_RESPBAH);
228
229	/* Interrupt Control registers */
230	regs_buff[32] = rd32(XSCT_IS);
231	regs_buff[33] = rd32(XSCT_IMS);
232	regs_buff[34] = rd32(XSCT_IMC);
233	regs_buff[35] = rd32(XSCT_IG);
234	regs_buff[36] = rd32(XSCT_ICTL);
235}
236
237static int fjes_set_dump(struct net_device *netdev, struct ethtool_dump *dump)
238{
239	struct fjes_adapter *adapter = netdev_priv(netdev);
240	struct fjes_hw *hw = &adapter->hw;
241	int ret = 0;
242
243	if (dump->flag) {
244		if (hw->debug_mode)
245			return -EPERM;
246
247		hw->debug_mode = dump->flag;
248
249		/* enable debug mode */
250		mutex_lock(&hw->hw_info.lock);
251		ret = fjes_hw_start_debug(hw);
252		mutex_unlock(&hw->hw_info.lock);
253
254		if (ret)
255			hw->debug_mode = 0;
256	} else {
257		if (!hw->debug_mode)
258			return -EPERM;
259
260		/* disable debug mode */
261		mutex_lock(&hw->hw_info.lock);
262		ret = fjes_hw_stop_debug(hw);
263		mutex_unlock(&hw->hw_info.lock);
264	}
265
266	return ret;
267}
268
269static int fjes_get_dump_flag(struct net_device *netdev,
270			      struct ethtool_dump *dump)
271{
272	struct fjes_adapter *adapter = netdev_priv(netdev);
273	struct fjes_hw *hw = &adapter->hw;
274
275	dump->len = hw->hw_info.trace_size;
276	dump->version = 1;
277	dump->flag = hw->debug_mode;
278
279	return 0;
280}
281
282static int fjes_get_dump_data(struct net_device *netdev,
283			      struct ethtool_dump *dump, void *buf)
284{
285	struct fjes_adapter *adapter = netdev_priv(netdev);
286	struct fjes_hw *hw = &adapter->hw;
287	int ret = 0;
288
289	if (hw->hw_info.trace)
290		memcpy(buf, hw->hw_info.trace, hw->hw_info.trace_size);
291	else
292		ret = -EPERM;
293
294	return ret;
295}
296
297static const struct ethtool_ops fjes_ethtool_ops = {
298		.get_drvinfo		= fjes_get_drvinfo,
299		.get_ethtool_stats = fjes_get_ethtool_stats,
300		.get_strings      = fjes_get_strings,
301		.get_sset_count   = fjes_get_sset_count,
302		.get_regs		= fjes_get_regs,
303		.get_regs_len		= fjes_get_regs_len,
304		.set_dump		= fjes_set_dump,
305		.get_dump_flag		= fjes_get_dump_flag,
306		.get_dump_data		= fjes_get_dump_data,
307		.get_link_ksettings	= fjes_get_link_ksettings,
308};
309
310void fjes_set_ethtool_ops(struct net_device *netdev)
311{
312	netdev->ethtool_ops = &fjes_ethtool_ops;
313}
v6.2
  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 *  FUJITSU Extended Socket Network Device driver
  4 *  Copyright (c) 2015 FUJITSU LIMITED
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  5 */
  6
  7/* ethtool support for fjes */
  8
  9#include <linux/vmalloc.h>
 10#include <linux/netdevice.h>
 11#include <linux/ethtool.h>
 12#include <linux/platform_device.h>
 13
 14#include "fjes.h"
 15
 16struct fjes_stats {
 17	char stat_string[ETH_GSTRING_LEN];
 18	int sizeof_stat;
 19	int stat_offset;
 20};
 21
 22#define FJES_STAT(name, stat) { \
 23	.stat_string = name, \
 24	.sizeof_stat = sizeof_field(struct fjes_adapter, stat), \
 25	.stat_offset = offsetof(struct fjes_adapter, stat) \
 26}
 27
 28static const struct fjes_stats fjes_gstrings_stats[] = {
 29	FJES_STAT("rx_packets", stats64.rx_packets),
 30	FJES_STAT("tx_packets", stats64.tx_packets),
 31	FJES_STAT("rx_bytes", stats64.rx_bytes),
 32	FJES_STAT("tx_bytes", stats64.rx_bytes),
 33	FJES_STAT("rx_dropped", stats64.rx_dropped),
 34	FJES_STAT("tx_dropped", stats64.tx_dropped),
 35};
 36
 37#define FJES_EP_STATS_LEN 14
 38#define FJES_STATS_LEN \
 39	(ARRAY_SIZE(fjes_gstrings_stats) + \
 40	 ((&((struct fjes_adapter *)netdev_priv(netdev))->hw)->max_epid - 1) * \
 41	 FJES_EP_STATS_LEN)
 42
 43static void fjes_get_ethtool_stats(struct net_device *netdev,
 44				   struct ethtool_stats *stats, u64 *data)
 45{
 46	struct fjes_adapter *adapter = netdev_priv(netdev);
 47	struct fjes_hw *hw = &adapter->hw;
 48	int epidx;
 49	char *p;
 50	int i;
 51
 52	for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) {
 53		p = (char *)adapter + fjes_gstrings_stats[i].stat_offset;
 54		data[i] = (fjes_gstrings_stats[i].sizeof_stat == sizeof(u64))
 55			? *(u64 *)p : *(u32 *)p;
 56	}
 57	for (epidx = 0; epidx < hw->max_epid; epidx++) {
 58		if (epidx == hw->my_epid)
 59			continue;
 60		data[i++] = hw->ep_shm_info[epidx].ep_stats
 61				.com_regist_buf_exec;
 62		data[i++] = hw->ep_shm_info[epidx].ep_stats
 63				.com_unregist_buf_exec;
 64		data[i++] = hw->ep_shm_info[epidx].ep_stats.send_intr_rx;
 65		data[i++] = hw->ep_shm_info[epidx].ep_stats.send_intr_unshare;
 66		data[i++] = hw->ep_shm_info[epidx].ep_stats
 67				.send_intr_zoneupdate;
 68		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_rx;
 69		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_unshare;
 70		data[i++] = hw->ep_shm_info[epidx].ep_stats.recv_intr_stop;
 71		data[i++] = hw->ep_shm_info[epidx].ep_stats
 72				.recv_intr_zoneupdate;
 73		data[i++] = hw->ep_shm_info[epidx].ep_stats.tx_buffer_full;
 74		data[i++] = hw->ep_shm_info[epidx].ep_stats
 75				.tx_dropped_not_shared;
 76		data[i++] = hw->ep_shm_info[epidx].ep_stats
 77				.tx_dropped_ver_mismatch;
 78		data[i++] = hw->ep_shm_info[epidx].ep_stats
 79				.tx_dropped_buf_size_mismatch;
 80		data[i++] = hw->ep_shm_info[epidx].ep_stats
 81				.tx_dropped_vlanid_mismatch;
 82	}
 83}
 84
 85static void fjes_get_strings(struct net_device *netdev,
 86			     u32 stringset, u8 *data)
 87{
 88	struct fjes_adapter *adapter = netdev_priv(netdev);
 89	struct fjes_hw *hw = &adapter->hw;
 90	u8 *p = data;
 91	int i;
 92
 93	switch (stringset) {
 94	case ETH_SS_STATS:
 95		for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) {
 96			memcpy(p, fjes_gstrings_stats[i].stat_string,
 97			       ETH_GSTRING_LEN);
 98			p += ETH_GSTRING_LEN;
 99		}
100		for (i = 0; i < hw->max_epid; i++) {
101			if (i == hw->my_epid)
102				continue;
103			sprintf(p, "ep%u_com_regist_buf_exec", i);
104			p += ETH_GSTRING_LEN;
105			sprintf(p, "ep%u_com_unregist_buf_exec", i);
106			p += ETH_GSTRING_LEN;
107			sprintf(p, "ep%u_send_intr_rx", i);
108			p += ETH_GSTRING_LEN;
109			sprintf(p, "ep%u_send_intr_unshare", i);
110			p += ETH_GSTRING_LEN;
111			sprintf(p, "ep%u_send_intr_zoneupdate", i);
112			p += ETH_GSTRING_LEN;
113			sprintf(p, "ep%u_recv_intr_rx", i);
114			p += ETH_GSTRING_LEN;
115			sprintf(p, "ep%u_recv_intr_unshare", i);
116			p += ETH_GSTRING_LEN;
117			sprintf(p, "ep%u_recv_intr_stop", i);
118			p += ETH_GSTRING_LEN;
119			sprintf(p, "ep%u_recv_intr_zoneupdate", i);
120			p += ETH_GSTRING_LEN;
121			sprintf(p, "ep%u_tx_buffer_full", i);
122			p += ETH_GSTRING_LEN;
123			sprintf(p, "ep%u_tx_dropped_not_shared", i);
124			p += ETH_GSTRING_LEN;
125			sprintf(p, "ep%u_tx_dropped_ver_mismatch", i);
126			p += ETH_GSTRING_LEN;
127			sprintf(p, "ep%u_tx_dropped_buf_size_mismatch", i);
128			p += ETH_GSTRING_LEN;
129			sprintf(p, "ep%u_tx_dropped_vlanid_mismatch", i);
130			p += ETH_GSTRING_LEN;
131		}
132		break;
133	}
134}
135
136static int fjes_get_sset_count(struct net_device *netdev, int sset)
137{
138	switch (sset) {
139	case ETH_SS_STATS:
140		return FJES_STATS_LEN;
141	default:
142		return -EOPNOTSUPP;
143	}
144}
145
146static void fjes_get_drvinfo(struct net_device *netdev,
147			     struct ethtool_drvinfo *drvinfo)
148{
149	struct fjes_adapter *adapter = netdev_priv(netdev);
150	struct platform_device *plat_dev;
151
152	plat_dev = adapter->plat_dev;
153
154	strscpy(drvinfo->driver, fjes_driver_name, sizeof(drvinfo->driver));
155	strscpy(drvinfo->version, fjes_driver_version,
156		sizeof(drvinfo->version));
157
158	strscpy(drvinfo->fw_version, "none", sizeof(drvinfo->fw_version));
159	snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info),
160		 "platform:%s", plat_dev->name);
161}
162
163static int fjes_get_link_ksettings(struct net_device *netdev,
164				   struct ethtool_link_ksettings *ecmd)
165{
166	ethtool_link_ksettings_zero_link_mode(ecmd, supported);
167	ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
168	ecmd->base.duplex = DUPLEX_FULL;
169	ecmd->base.autoneg = AUTONEG_DISABLE;
170	ecmd->base.port = PORT_NONE;
171	ecmd->base.speed = 20000;	/* 20Gb/s */
172
173	return 0;
174}
175
176static int fjes_get_regs_len(struct net_device *netdev)
177{
178#define FJES_REGS_LEN	37
179	return FJES_REGS_LEN * sizeof(u32);
180}
181
182static void fjes_get_regs(struct net_device *netdev,
183			  struct ethtool_regs *regs, void *p)
184{
185	struct fjes_adapter *adapter = netdev_priv(netdev);
186	struct fjes_hw *hw = &adapter->hw;
187	u32 *regs_buff = p;
188
189	memset(p, 0, FJES_REGS_LEN * sizeof(u32));
190
191	regs->version = 1;
192
193	/* Information registers */
194	regs_buff[0] = rd32(XSCT_OWNER_EPID);
195	regs_buff[1] = rd32(XSCT_MAX_EP);
196
197	/* Device Control registers */
198	regs_buff[4] = rd32(XSCT_DCTL);
199
200	/* Command Control registers */
201	regs_buff[8] = rd32(XSCT_CR);
202	regs_buff[9] = rd32(XSCT_CS);
203	regs_buff[10] = rd32(XSCT_SHSTSAL);
204	regs_buff[11] = rd32(XSCT_SHSTSAH);
205
206	regs_buff[13] = rd32(XSCT_REQBL);
207	regs_buff[14] = rd32(XSCT_REQBAL);
208	regs_buff[15] = rd32(XSCT_REQBAH);
209
210	regs_buff[17] = rd32(XSCT_RESPBL);
211	regs_buff[18] = rd32(XSCT_RESPBAL);
212	regs_buff[19] = rd32(XSCT_RESPBAH);
213
214	/* Interrupt Control registers */
215	regs_buff[32] = rd32(XSCT_IS);
216	regs_buff[33] = rd32(XSCT_IMS);
217	regs_buff[34] = rd32(XSCT_IMC);
218	regs_buff[35] = rd32(XSCT_IG);
219	regs_buff[36] = rd32(XSCT_ICTL);
220}
221
222static int fjes_set_dump(struct net_device *netdev, struct ethtool_dump *dump)
223{
224	struct fjes_adapter *adapter = netdev_priv(netdev);
225	struct fjes_hw *hw = &adapter->hw;
226	int ret = 0;
227
228	if (dump->flag) {
229		if (hw->debug_mode)
230			return -EPERM;
231
232		hw->debug_mode = dump->flag;
233
234		/* enable debug mode */
235		mutex_lock(&hw->hw_info.lock);
236		ret = fjes_hw_start_debug(hw);
237		mutex_unlock(&hw->hw_info.lock);
238
239		if (ret)
240			hw->debug_mode = 0;
241	} else {
242		if (!hw->debug_mode)
243			return -EPERM;
244
245		/* disable debug mode */
246		mutex_lock(&hw->hw_info.lock);
247		ret = fjes_hw_stop_debug(hw);
248		mutex_unlock(&hw->hw_info.lock);
249	}
250
251	return ret;
252}
253
254static int fjes_get_dump_flag(struct net_device *netdev,
255			      struct ethtool_dump *dump)
256{
257	struct fjes_adapter *adapter = netdev_priv(netdev);
258	struct fjes_hw *hw = &adapter->hw;
259
260	dump->len = hw->hw_info.trace_size;
261	dump->version = 1;
262	dump->flag = hw->debug_mode;
263
264	return 0;
265}
266
267static int fjes_get_dump_data(struct net_device *netdev,
268			      struct ethtool_dump *dump, void *buf)
269{
270	struct fjes_adapter *adapter = netdev_priv(netdev);
271	struct fjes_hw *hw = &adapter->hw;
272	int ret = 0;
273
274	if (hw->hw_info.trace)
275		memcpy(buf, hw->hw_info.trace, hw->hw_info.trace_size);
276	else
277		ret = -EPERM;
278
279	return ret;
280}
281
282static const struct ethtool_ops fjes_ethtool_ops = {
283		.get_drvinfo		= fjes_get_drvinfo,
284		.get_ethtool_stats = fjes_get_ethtool_stats,
285		.get_strings      = fjes_get_strings,
286		.get_sset_count   = fjes_get_sset_count,
287		.get_regs		= fjes_get_regs,
288		.get_regs_len		= fjes_get_regs_len,
289		.set_dump		= fjes_set_dump,
290		.get_dump_flag		= fjes_get_dump_flag,
291		.get_dump_data		= fjes_get_dump_data,
292		.get_link_ksettings	= fjes_get_link_ksettings,
293};
294
295void fjes_set_ethtool_ops(struct net_device *netdev)
296{
297	netdev->ethtool_ops = &fjes_ethtool_ops;
298}