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v6.8
  1/* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
  2 *
  3 * Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
  4 *
  5 * This program is dual-licensed; you may select either version 2 of
  6 * the GNU General Public License ("GPL") or BSD license ("BSD").
  7 *
  8 * This Synopsys DWC XLGMAC software driver and associated documentation
  9 * (hereinafter the "Software") is an unsupported proprietary work of
 10 * Synopsys, Inc. unless otherwise expressly agreed to in writing between
 11 * Synopsys and you. The Software IS NOT an item of Licensed Software or a
 12 * Licensed Product under any End User Software License Agreement or
 13 * Agreement for Licensed Products with Synopsys or any supplement thereto.
 14 * Synopsys is a registered trademark of Synopsys, Inc. Other names included
 15 * in the SOFTWARE may be the trademarks of their respective owners.
 16 */
 17
 18#include <linux/ethtool.h>
 19#include <linux/kernel.h>
 20#include <linux/netdevice.h>
 21
 22#include "dwc-xlgmac.h"
 23#include "dwc-xlgmac-reg.h"
 24
 25struct xlgmac_stats_desc {
 26	char stat_string[ETH_GSTRING_LEN];
 27	int stat_offset;
 28};
 29
 30#define XLGMAC_STAT(str, var)					\
 31	{							\
 32		str,						\
 33		offsetof(struct xlgmac_pdata, stats.var),	\
 34	}
 35
 36static const struct xlgmac_stats_desc xlgmac_gstring_stats[] = {
 37	/* MMC TX counters */
 38	XLGMAC_STAT("tx_bytes", txoctetcount_gb),
 39	XLGMAC_STAT("tx_bytes_good", txoctetcount_g),
 40	XLGMAC_STAT("tx_packets", txframecount_gb),
 41	XLGMAC_STAT("tx_packets_good", txframecount_g),
 42	XLGMAC_STAT("tx_unicast_packets", txunicastframes_gb),
 43	XLGMAC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
 44	XLGMAC_STAT("tx_broadcast_packets_good", txbroadcastframes_g),
 45	XLGMAC_STAT("tx_multicast_packets", txmulticastframes_gb),
 46	XLGMAC_STAT("tx_multicast_packets_good", txmulticastframes_g),
 47	XLGMAC_STAT("tx_vlan_packets_good", txvlanframes_g),
 48	XLGMAC_STAT("tx_64_byte_packets", tx64octets_gb),
 49	XLGMAC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
 50	XLGMAC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
 51	XLGMAC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
 52	XLGMAC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
 53	XLGMAC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
 54	XLGMAC_STAT("tx_underflow_errors", txunderflowerror),
 55	XLGMAC_STAT("tx_pause_frames", txpauseframes),
 56
 57	/* MMC RX counters */
 58	XLGMAC_STAT("rx_bytes", rxoctetcount_gb),
 59	XLGMAC_STAT("rx_bytes_good", rxoctetcount_g),
 60	XLGMAC_STAT("rx_packets", rxframecount_gb),
 61	XLGMAC_STAT("rx_unicast_packets_good", rxunicastframes_g),
 62	XLGMAC_STAT("rx_broadcast_packets_good", rxbroadcastframes_g),
 63	XLGMAC_STAT("rx_multicast_packets_good", rxmulticastframes_g),
 64	XLGMAC_STAT("rx_vlan_packets", rxvlanframes_gb),
 65	XLGMAC_STAT("rx_64_byte_packets", rx64octets_gb),
 66	XLGMAC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
 67	XLGMAC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
 68	XLGMAC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
 69	XLGMAC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
 70	XLGMAC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
 71	XLGMAC_STAT("rx_undersize_packets_good", rxundersize_g),
 72	XLGMAC_STAT("rx_oversize_packets_good", rxoversize_g),
 73	XLGMAC_STAT("rx_crc_errors", rxcrcerror),
 74	XLGMAC_STAT("rx_crc_errors_small_packets", rxrunterror),
 75	XLGMAC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
 76	XLGMAC_STAT("rx_length_errors", rxlengtherror),
 77	XLGMAC_STAT("rx_out_of_range_errors", rxoutofrangetype),
 78	XLGMAC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
 79	XLGMAC_STAT("rx_watchdog_errors", rxwatchdogerror),
 80	XLGMAC_STAT("rx_pause_frames", rxpauseframes),
 81
 82	/* Extra counters */
 83	XLGMAC_STAT("tx_tso_packets", tx_tso_packets),
 84	XLGMAC_STAT("rx_split_header_packets", rx_split_header_packets),
 85	XLGMAC_STAT("tx_process_stopped", tx_process_stopped),
 86	XLGMAC_STAT("rx_process_stopped", rx_process_stopped),
 87	XLGMAC_STAT("tx_buffer_unavailable", tx_buffer_unavailable),
 88	XLGMAC_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
 89	XLGMAC_STAT("fatal_bus_error", fatal_bus_error),
 90	XLGMAC_STAT("tx_vlan_packets", tx_vlan_packets),
 91	XLGMAC_STAT("rx_vlan_packets", rx_vlan_packets),
 92	XLGMAC_STAT("napi_poll_isr", napi_poll_isr),
 93	XLGMAC_STAT("napi_poll_txtimer", napi_poll_txtimer),
 94};
 95
 96#define XLGMAC_STATS_COUNT	ARRAY_SIZE(xlgmac_gstring_stats)
 97
 98static void xlgmac_ethtool_get_drvinfo(struct net_device *netdev,
 99				       struct ethtool_drvinfo *drvinfo)
100{
101	struct xlgmac_pdata *pdata = netdev_priv(netdev);
102	u32 ver = pdata->hw_feat.version;
103	u32 snpsver, devid, userver;
104
105	strscpy(drvinfo->driver, pdata->drv_name, sizeof(drvinfo->driver));
106	strscpy(drvinfo->version, pdata->drv_ver, sizeof(drvinfo->version));
107	strscpy(drvinfo->bus_info, dev_name(pdata->dev),
108		sizeof(drvinfo->bus_info));
109	/* S|SNPSVER: Synopsys-defined Version
110	 * D|DEVID: Indicates the Device family
111	 * U|USERVER: User-defined Version
112	 */
113	snpsver = XLGMAC_GET_REG_BITS(ver, MAC_VR_SNPSVER_POS,
114				      MAC_VR_SNPSVER_LEN);
115	devid = XLGMAC_GET_REG_BITS(ver, MAC_VR_DEVID_POS,
116				    MAC_VR_DEVID_LEN);
117	userver = XLGMAC_GET_REG_BITS(ver, MAC_VR_USERVER_POS,
118				      MAC_VR_USERVER_LEN);
119	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
120		 "S.D.U: %x.%x.%x", snpsver, devid, userver);
121}
122
123static u32 xlgmac_ethtool_get_msglevel(struct net_device *netdev)
124{
125	struct xlgmac_pdata *pdata = netdev_priv(netdev);
126
127	return pdata->msg_enable;
128}
129
130static void xlgmac_ethtool_set_msglevel(struct net_device *netdev,
131					u32 msglevel)
132{
133	struct xlgmac_pdata *pdata = netdev_priv(netdev);
134
135	pdata->msg_enable = msglevel;
136}
137
138static void xlgmac_ethtool_get_channels(struct net_device *netdev,
139					struct ethtool_channels *channel)
140{
141	struct xlgmac_pdata *pdata = netdev_priv(netdev);
142
143	channel->max_rx = XLGMAC_MAX_DMA_CHANNELS;
144	channel->max_tx = XLGMAC_MAX_DMA_CHANNELS;
145	channel->rx_count = pdata->rx_q_count;
146	channel->tx_count = pdata->tx_q_count;
147}
148
149static int
150xlgmac_ethtool_get_coalesce(struct net_device *netdev,
151			    struct ethtool_coalesce *ec,
152			    struct kernel_ethtool_coalesce *kernel_coal,
153			    struct netlink_ext_ack *extack)
154{
155	struct xlgmac_pdata *pdata = netdev_priv(netdev);
156
157	ec->rx_coalesce_usecs = pdata->rx_usecs;
158	ec->rx_max_coalesced_frames = pdata->rx_frames;
159	ec->tx_max_coalesced_frames = pdata->tx_frames;
160
161	return 0;
162}
163
164static int
165xlgmac_ethtool_set_coalesce(struct net_device *netdev,
166			    struct ethtool_coalesce *ec,
167			    struct kernel_ethtool_coalesce *kernel_coal,
168			    struct netlink_ext_ack *extack)
169{
170	struct xlgmac_pdata *pdata = netdev_priv(netdev);
171	struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
172	unsigned int rx_frames, rx_riwt, rx_usecs;
173	unsigned int tx_frames;
174
175	rx_usecs = ec->rx_coalesce_usecs;
176	rx_riwt = hw_ops->usec_to_riwt(pdata, rx_usecs);
177	rx_frames = ec->rx_max_coalesced_frames;
178	tx_frames = ec->tx_max_coalesced_frames;
179
180	if ((rx_riwt > XLGMAC_MAX_DMA_RIWT) ||
181	    (rx_riwt < XLGMAC_MIN_DMA_RIWT) ||
182	    (rx_frames > pdata->rx_desc_count))
183		return -EINVAL;
184
185	if (tx_frames > pdata->tx_desc_count)
186		return -EINVAL;
187
188	pdata->rx_riwt = rx_riwt;
189	pdata->rx_usecs = rx_usecs;
190	pdata->rx_frames = rx_frames;
191	hw_ops->config_rx_coalesce(pdata);
192
193	pdata->tx_frames = tx_frames;
194	hw_ops->config_tx_coalesce(pdata);
195
196	return 0;
197}
198
199static void xlgmac_ethtool_get_strings(struct net_device *netdev,
200				       u32 stringset, u8 *data)
201{
202	int i;
203
204	switch (stringset) {
205	case ETH_SS_STATS:
206		for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
207			memcpy(data, xlgmac_gstring_stats[i].stat_string,
208			       ETH_GSTRING_LEN);
209			data += ETH_GSTRING_LEN;
210		}
211		break;
212	default:
213		WARN_ON(1);
214		break;
215	}
216}
217
218static int xlgmac_ethtool_get_sset_count(struct net_device *netdev,
219					 int stringset)
220{
221	int ret;
222
223	switch (stringset) {
224	case ETH_SS_STATS:
225		ret = XLGMAC_STATS_COUNT;
226		break;
227
228	default:
229		ret = -EOPNOTSUPP;
230	}
231
232	return ret;
233}
234
235static void xlgmac_ethtool_get_ethtool_stats(struct net_device *netdev,
236					     struct ethtool_stats *stats,
237					     u64 *data)
238{
239	struct xlgmac_pdata *pdata = netdev_priv(netdev);
240	u8 *stat;
241	int i;
242
243	pdata->hw_ops.read_mmc_stats(pdata);
244	for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
245		stat = (u8 *)pdata + xlgmac_gstring_stats[i].stat_offset;
246		*data++ = *(u64 *)stat;
247	}
248}
249
250static const struct ethtool_ops xlgmac_ethtool_ops = {
251	.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
252				     ETHTOOL_COALESCE_MAX_FRAMES,
253	.get_drvinfo = xlgmac_ethtool_get_drvinfo,
254	.get_link = ethtool_op_get_link,
255	.get_msglevel = xlgmac_ethtool_get_msglevel,
256	.set_msglevel = xlgmac_ethtool_set_msglevel,
257	.get_channels = xlgmac_ethtool_get_channels,
258	.get_coalesce = xlgmac_ethtool_get_coalesce,
259	.set_coalesce = xlgmac_ethtool_set_coalesce,
260	.get_strings = xlgmac_ethtool_get_strings,
261	.get_sset_count = xlgmac_ethtool_get_sset_count,
262	.get_ethtool_stats = xlgmac_ethtool_get_ethtool_stats,
263};
264
265const struct ethtool_ops *xlgmac_get_ethtool_ops(void)
266{
267	return &xlgmac_ethtool_ops;
268}
v6.2
  1/* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
  2 *
  3 * Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
  4 *
  5 * This program is dual-licensed; you may select either version 2 of
  6 * the GNU General Public License ("GPL") or BSD license ("BSD").
  7 *
  8 * This Synopsys DWC XLGMAC software driver and associated documentation
  9 * (hereinafter the "Software") is an unsupported proprietary work of
 10 * Synopsys, Inc. unless otherwise expressly agreed to in writing between
 11 * Synopsys and you. The Software IS NOT an item of Licensed Software or a
 12 * Licensed Product under any End User Software License Agreement or
 13 * Agreement for Licensed Products with Synopsys or any supplement thereto.
 14 * Synopsys is a registered trademark of Synopsys, Inc. Other names included
 15 * in the SOFTWARE may be the trademarks of their respective owners.
 16 */
 17
 18#include <linux/ethtool.h>
 19#include <linux/kernel.h>
 20#include <linux/netdevice.h>
 21
 22#include "dwc-xlgmac.h"
 23#include "dwc-xlgmac-reg.h"
 24
 25struct xlgmac_stats_desc {
 26	char stat_string[ETH_GSTRING_LEN];
 27	int stat_offset;
 28};
 29
 30#define XLGMAC_STAT(str, var)					\
 31	{							\
 32		str,						\
 33		offsetof(struct xlgmac_pdata, stats.var),	\
 34	}
 35
 36static const struct xlgmac_stats_desc xlgmac_gstring_stats[] = {
 37	/* MMC TX counters */
 38	XLGMAC_STAT("tx_bytes", txoctetcount_gb),
 39	XLGMAC_STAT("tx_bytes_good", txoctetcount_g),
 40	XLGMAC_STAT("tx_packets", txframecount_gb),
 41	XLGMAC_STAT("tx_packets_good", txframecount_g),
 42	XLGMAC_STAT("tx_unicast_packets", txunicastframes_gb),
 43	XLGMAC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
 44	XLGMAC_STAT("tx_broadcast_packets_good", txbroadcastframes_g),
 45	XLGMAC_STAT("tx_multicast_packets", txmulticastframes_gb),
 46	XLGMAC_STAT("tx_multicast_packets_good", txmulticastframes_g),
 47	XLGMAC_STAT("tx_vlan_packets_good", txvlanframes_g),
 48	XLGMAC_STAT("tx_64_byte_packets", tx64octets_gb),
 49	XLGMAC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
 50	XLGMAC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
 51	XLGMAC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
 52	XLGMAC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
 53	XLGMAC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
 54	XLGMAC_STAT("tx_underflow_errors", txunderflowerror),
 55	XLGMAC_STAT("tx_pause_frames", txpauseframes),
 56
 57	/* MMC RX counters */
 58	XLGMAC_STAT("rx_bytes", rxoctetcount_gb),
 59	XLGMAC_STAT("rx_bytes_good", rxoctetcount_g),
 60	XLGMAC_STAT("rx_packets", rxframecount_gb),
 61	XLGMAC_STAT("rx_unicast_packets_good", rxunicastframes_g),
 62	XLGMAC_STAT("rx_broadcast_packets_good", rxbroadcastframes_g),
 63	XLGMAC_STAT("rx_multicast_packets_good", rxmulticastframes_g),
 64	XLGMAC_STAT("rx_vlan_packets", rxvlanframes_gb),
 65	XLGMAC_STAT("rx_64_byte_packets", rx64octets_gb),
 66	XLGMAC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
 67	XLGMAC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
 68	XLGMAC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
 69	XLGMAC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
 70	XLGMAC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
 71	XLGMAC_STAT("rx_undersize_packets_good", rxundersize_g),
 72	XLGMAC_STAT("rx_oversize_packets_good", rxoversize_g),
 73	XLGMAC_STAT("rx_crc_errors", rxcrcerror),
 74	XLGMAC_STAT("rx_crc_errors_small_packets", rxrunterror),
 75	XLGMAC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
 76	XLGMAC_STAT("rx_length_errors", rxlengtherror),
 77	XLGMAC_STAT("rx_out_of_range_errors", rxoutofrangetype),
 78	XLGMAC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
 79	XLGMAC_STAT("rx_watchdog_errors", rxwatchdogerror),
 80	XLGMAC_STAT("rx_pause_frames", rxpauseframes),
 81
 82	/* Extra counters */
 83	XLGMAC_STAT("tx_tso_packets", tx_tso_packets),
 84	XLGMAC_STAT("rx_split_header_packets", rx_split_header_packets),
 85	XLGMAC_STAT("tx_process_stopped", tx_process_stopped),
 86	XLGMAC_STAT("rx_process_stopped", rx_process_stopped),
 87	XLGMAC_STAT("tx_buffer_unavailable", tx_buffer_unavailable),
 88	XLGMAC_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
 89	XLGMAC_STAT("fatal_bus_error", fatal_bus_error),
 90	XLGMAC_STAT("tx_vlan_packets", tx_vlan_packets),
 91	XLGMAC_STAT("rx_vlan_packets", rx_vlan_packets),
 92	XLGMAC_STAT("napi_poll_isr", napi_poll_isr),
 93	XLGMAC_STAT("napi_poll_txtimer", napi_poll_txtimer),
 94};
 95
 96#define XLGMAC_STATS_COUNT	ARRAY_SIZE(xlgmac_gstring_stats)
 97
 98static void xlgmac_ethtool_get_drvinfo(struct net_device *netdev,
 99				       struct ethtool_drvinfo *drvinfo)
100{
101	struct xlgmac_pdata *pdata = netdev_priv(netdev);
102	u32 ver = pdata->hw_feat.version;
103	u32 snpsver, devid, userver;
104
105	strscpy(drvinfo->driver, pdata->drv_name, sizeof(drvinfo->driver));
106	strscpy(drvinfo->version, pdata->drv_ver, sizeof(drvinfo->version));
107	strscpy(drvinfo->bus_info, dev_name(pdata->dev),
108		sizeof(drvinfo->bus_info));
109	/* S|SNPSVER: Synopsys-defined Version
110	 * D|DEVID: Indicates the Device family
111	 * U|USERVER: User-defined Version
112	 */
113	snpsver = XLGMAC_GET_REG_BITS(ver, MAC_VR_SNPSVER_POS,
114				      MAC_VR_SNPSVER_LEN);
115	devid = XLGMAC_GET_REG_BITS(ver, MAC_VR_DEVID_POS,
116				    MAC_VR_DEVID_LEN);
117	userver = XLGMAC_GET_REG_BITS(ver, MAC_VR_USERVER_POS,
118				      MAC_VR_USERVER_LEN);
119	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
120		 "S.D.U: %x.%x.%x", snpsver, devid, userver);
121}
122
123static u32 xlgmac_ethtool_get_msglevel(struct net_device *netdev)
124{
125	struct xlgmac_pdata *pdata = netdev_priv(netdev);
126
127	return pdata->msg_enable;
128}
129
130static void xlgmac_ethtool_set_msglevel(struct net_device *netdev,
131					u32 msglevel)
132{
133	struct xlgmac_pdata *pdata = netdev_priv(netdev);
134
135	pdata->msg_enable = msglevel;
136}
137
138static void xlgmac_ethtool_get_channels(struct net_device *netdev,
139					struct ethtool_channels *channel)
140{
141	struct xlgmac_pdata *pdata = netdev_priv(netdev);
142
143	channel->max_rx = XLGMAC_MAX_DMA_CHANNELS;
144	channel->max_tx = XLGMAC_MAX_DMA_CHANNELS;
145	channel->rx_count = pdata->rx_q_count;
146	channel->tx_count = pdata->tx_q_count;
147}
148
149static int
150xlgmac_ethtool_get_coalesce(struct net_device *netdev,
151			    struct ethtool_coalesce *ec,
152			    struct kernel_ethtool_coalesce *kernel_coal,
153			    struct netlink_ext_ack *extack)
154{
155	struct xlgmac_pdata *pdata = netdev_priv(netdev);
156
157	ec->rx_coalesce_usecs = pdata->rx_usecs;
158	ec->rx_max_coalesced_frames = pdata->rx_frames;
159	ec->tx_max_coalesced_frames = pdata->tx_frames;
160
161	return 0;
162}
163
164static int
165xlgmac_ethtool_set_coalesce(struct net_device *netdev,
166			    struct ethtool_coalesce *ec,
167			    struct kernel_ethtool_coalesce *kernel_coal,
168			    struct netlink_ext_ack *extack)
169{
170	struct xlgmac_pdata *pdata = netdev_priv(netdev);
171	struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
172	unsigned int rx_frames, rx_riwt, rx_usecs;
173	unsigned int tx_frames;
174
175	rx_usecs = ec->rx_coalesce_usecs;
176	rx_riwt = hw_ops->usec_to_riwt(pdata, rx_usecs);
177	rx_frames = ec->rx_max_coalesced_frames;
178	tx_frames = ec->tx_max_coalesced_frames;
179
180	if ((rx_riwt > XLGMAC_MAX_DMA_RIWT) ||
181	    (rx_riwt < XLGMAC_MIN_DMA_RIWT) ||
182	    (rx_frames > pdata->rx_desc_count))
183		return -EINVAL;
184
185	if (tx_frames > pdata->tx_desc_count)
186		return -EINVAL;
187
188	pdata->rx_riwt = rx_riwt;
189	pdata->rx_usecs = rx_usecs;
190	pdata->rx_frames = rx_frames;
191	hw_ops->config_rx_coalesce(pdata);
192
193	pdata->tx_frames = tx_frames;
194	hw_ops->config_tx_coalesce(pdata);
195
196	return 0;
197}
198
199static void xlgmac_ethtool_get_strings(struct net_device *netdev,
200				       u32 stringset, u8 *data)
201{
202	int i;
203
204	switch (stringset) {
205	case ETH_SS_STATS:
206		for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
207			memcpy(data, xlgmac_gstring_stats[i].stat_string,
208			       ETH_GSTRING_LEN);
209			data += ETH_GSTRING_LEN;
210		}
211		break;
212	default:
213		WARN_ON(1);
214		break;
215	}
216}
217
218static int xlgmac_ethtool_get_sset_count(struct net_device *netdev,
219					 int stringset)
220{
221	int ret;
222
223	switch (stringset) {
224	case ETH_SS_STATS:
225		ret = XLGMAC_STATS_COUNT;
226		break;
227
228	default:
229		ret = -EOPNOTSUPP;
230	}
231
232	return ret;
233}
234
235static void xlgmac_ethtool_get_ethtool_stats(struct net_device *netdev,
236					     struct ethtool_stats *stats,
237					     u64 *data)
238{
239	struct xlgmac_pdata *pdata = netdev_priv(netdev);
240	u8 *stat;
241	int i;
242
243	pdata->hw_ops.read_mmc_stats(pdata);
244	for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
245		stat = (u8 *)pdata + xlgmac_gstring_stats[i].stat_offset;
246		*data++ = *(u64 *)stat;
247	}
248}
249
250static const struct ethtool_ops xlgmac_ethtool_ops = {
251	.supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
252				     ETHTOOL_COALESCE_MAX_FRAMES,
253	.get_drvinfo = xlgmac_ethtool_get_drvinfo,
254	.get_link = ethtool_op_get_link,
255	.get_msglevel = xlgmac_ethtool_get_msglevel,
256	.set_msglevel = xlgmac_ethtool_set_msglevel,
257	.get_channels = xlgmac_ethtool_get_channels,
258	.get_coalesce = xlgmac_ethtool_get_coalesce,
259	.set_coalesce = xlgmac_ethtool_set_coalesce,
260	.get_strings = xlgmac_ethtool_get_strings,
261	.get_sset_count = xlgmac_ethtool_get_sset_count,
262	.get_ethtool_stats = xlgmac_ethtool_get_ethtool_stats,
263};
264
265const struct ethtool_ops *xlgmac_get_ethtool_ops(void)
266{
267	return &xlgmac_ethtool_ops;
268}