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1 /*
2  * Copyright (c) 2015, Mellanox Technologies. All rights reserved.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * OpenIB.org BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 
33 #include <linux/ethtool_netlink.h>
34 
35 #include "en.h"
36 #include "en/port.h"
37 #include "en/params.h"
38 #include "en/ptp.h"
39 #include "lib/clock.h"
40 #include "en/fs_ethtool.h"
41 
mlx5e_ethtool_get_drvinfo(struct mlx5e_priv * priv,struct ethtool_drvinfo * drvinfo)42 void mlx5e_ethtool_get_drvinfo(struct mlx5e_priv *priv,
43 			       struct ethtool_drvinfo *drvinfo)
44 {
45 	struct mlx5_core_dev *mdev = priv->mdev;
46 	int count;
47 
48 	strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
49 	count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
50 			 "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
51 			 fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
52 	if (count >= sizeof(drvinfo->fw_version))
53 		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
54 			 "%d.%d.%04d", fw_rev_maj(mdev),
55 			 fw_rev_min(mdev), fw_rev_sub(mdev));
56 
57 	strscpy(drvinfo->bus_info, dev_name(mdev->device),
58 		sizeof(drvinfo->bus_info));
59 }
60 
mlx5e_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)61 static void mlx5e_get_drvinfo(struct net_device *dev,
62 			      struct ethtool_drvinfo *drvinfo)
63 {
64 	struct mlx5e_priv *priv = netdev_priv(dev);
65 
66 	mlx5e_ethtool_get_drvinfo(priv, drvinfo);
67 }
68 
69 struct ptys2ethtool_config {
70 	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
71 	__ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
72 };
73 
74 static
75 struct ptys2ethtool_config ptys2legacy_ethtool_table[MLX5E_LINK_MODES_NUMBER];
76 static
77 struct ptys2ethtool_config ptys2ext_ethtool_table[MLX5E_EXT_LINK_MODES_NUMBER];
78 
79 #define MLX5_BUILD_PTYS2ETHTOOL_CONFIG(reg_, table, ...)                  \
80 	({                                                              \
81 		struct ptys2ethtool_config *cfg;                        \
82 		const unsigned int modes[] = { __VA_ARGS__ };           \
83 		unsigned int i, bit, idx;                               \
84 		cfg = &ptys2##table##_ethtool_table[reg_];		\
85 		bitmap_zero(cfg->supported,                             \
86 			    __ETHTOOL_LINK_MODE_MASK_NBITS);            \
87 		bitmap_zero(cfg->advertised,                            \
88 			    __ETHTOOL_LINK_MODE_MASK_NBITS);            \
89 		for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) {             \
90 			bit = modes[i] % 64;                            \
91 			idx = modes[i] / 64;                            \
92 			__set_bit(bit, &cfg->supported[idx]);           \
93 			__set_bit(bit, &cfg->advertised[idx]);          \
94 		}                                                       \
95 	})
96 
mlx5e_build_ptys2ethtool_map(void)97 void mlx5e_build_ptys2ethtool_map(void)
98 {
99 	memset(ptys2legacy_ethtool_table, 0, sizeof(ptys2legacy_ethtool_table));
100 	memset(ptys2ext_ethtool_table, 0, sizeof(ptys2ext_ethtool_table));
101 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_CX_SGMII, legacy,
102 				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
103 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_KX, legacy,
104 				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
105 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_CX4, legacy,
106 				       ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
107 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_KX4, legacy,
108 				       ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
109 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_KR, legacy,
110 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
111 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_20GBASE_KR2, legacy,
112 				       ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
113 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_CR4, legacy,
114 				       ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
115 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_KR4, legacy,
116 				       ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
117 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_56GBASE_R4, legacy,
118 				       ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
119 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_CR, legacy,
120 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
121 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_SR, legacy,
122 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
123 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_ER, legacy,
124 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
125 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_SR4, legacy,
126 				       ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
127 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_LR4, legacy,
128 				       ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT);
129 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_SR2, legacy,
130 				       ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT);
131 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_CR4, legacy,
132 				       ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT);
133 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_SR4, legacy,
134 				       ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT);
135 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_KR4, legacy,
136 				       ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT);
137 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GBASE_LR4, legacy,
138 				       ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT);
139 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_T, legacy,
140 				       ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
141 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_CR, legacy,
142 				       ETHTOOL_LINK_MODE_25000baseCR_Full_BIT);
143 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_KR, legacy,
144 				       ETHTOOL_LINK_MODE_25000baseKR_Full_BIT);
145 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GBASE_SR, legacy,
146 				       ETHTOOL_LINK_MODE_25000baseSR_Full_BIT);
147 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_CR2, legacy,
148 				       ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT);
149 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GBASE_KR2, legacy,
150 				       ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT);
151 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_SGMII_100M, ext,
152 				       ETHTOOL_LINK_MODE_100baseT_Full_BIT);
153 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_1000BASE_X_SGMII, ext,
154 				       ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
155 				       ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
156 				       ETHTOOL_LINK_MODE_1000baseX_Full_BIT);
157 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_5GBASE_R, ext,
158 				       ETHTOOL_LINK_MODE_5000baseT_Full_BIT);
159 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_10GBASE_XFI_XAUI_1, ext,
160 				       ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
161 				       ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
162 				       ETHTOOL_LINK_MODE_10000baseR_FEC_BIT,
163 				       ETHTOOL_LINK_MODE_10000baseCR_Full_BIT,
164 				       ETHTOOL_LINK_MODE_10000baseSR_Full_BIT,
165 				       ETHTOOL_LINK_MODE_10000baseLR_Full_BIT,
166 				       ETHTOOL_LINK_MODE_10000baseER_Full_BIT);
167 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_40GBASE_XLAUI_4_XLPPI_4, ext,
168 				       ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT,
169 				       ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT,
170 				       ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT,
171 				       ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT);
172 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_25GAUI_1_25GBASE_CR_KR, ext,
173 				       ETHTOOL_LINK_MODE_25000baseCR_Full_BIT,
174 				       ETHTOOL_LINK_MODE_25000baseKR_Full_BIT,
175 				       ETHTOOL_LINK_MODE_25000baseSR_Full_BIT);
176 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GAUI_2_LAUI_2_50GBASE_CR2_KR2,
177 				       ext,
178 				       ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT,
179 				       ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT,
180 				       ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT);
181 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_50GAUI_1_LAUI_1_50GBASE_CR_KR, ext,
182 				       ETHTOOL_LINK_MODE_50000baseKR_Full_BIT,
183 				       ETHTOOL_LINK_MODE_50000baseSR_Full_BIT,
184 				       ETHTOOL_LINK_MODE_50000baseCR_Full_BIT,
185 				       ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT,
186 				       ETHTOOL_LINK_MODE_50000baseDR_Full_BIT);
187 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_CAUI_4_100GBASE_CR4_KR4, ext,
188 				       ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT,
189 				       ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT,
190 				       ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT,
191 				       ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT);
192 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GAUI_2_100GBASE_CR2_KR2, ext,
193 				       ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT,
194 				       ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT,
195 				       ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT,
196 				       ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT,
197 				       ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT);
198 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_200GAUI_4_200GBASE_CR4_KR4, ext,
199 				       ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT,
200 				       ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT,
201 				       ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT,
202 				       ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT,
203 				       ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT);
204 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_100GAUI_1_100GBASE_CR_KR, ext,
205 				       ETHTOOL_LINK_MODE_100000baseKR_Full_BIT,
206 				       ETHTOOL_LINK_MODE_100000baseSR_Full_BIT,
207 				       ETHTOOL_LINK_MODE_100000baseLR_ER_FR_Full_BIT,
208 				       ETHTOOL_LINK_MODE_100000baseDR_Full_BIT,
209 				       ETHTOOL_LINK_MODE_100000baseCR_Full_BIT);
210 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_200GAUI_2_200GBASE_CR2_KR2, ext,
211 				       ETHTOOL_LINK_MODE_200000baseKR2_Full_BIT,
212 				       ETHTOOL_LINK_MODE_200000baseSR2_Full_BIT,
213 				       ETHTOOL_LINK_MODE_200000baseLR2_ER2_FR2_Full_BIT,
214 				       ETHTOOL_LINK_MODE_200000baseDR2_Full_BIT,
215 				       ETHTOOL_LINK_MODE_200000baseCR2_Full_BIT);
216 	MLX5_BUILD_PTYS2ETHTOOL_CONFIG(MLX5E_400GAUI_4_400GBASE_CR4_KR4, ext,
217 				       ETHTOOL_LINK_MODE_400000baseKR4_Full_BIT,
218 				       ETHTOOL_LINK_MODE_400000baseSR4_Full_BIT,
219 				       ETHTOOL_LINK_MODE_400000baseLR4_ER4_FR4_Full_BIT,
220 				       ETHTOOL_LINK_MODE_400000baseDR4_Full_BIT,
221 				       ETHTOOL_LINK_MODE_400000baseCR4_Full_BIT);
222 }
223 
mlx5e_ethtool_get_speed_arr(struct mlx5_core_dev * mdev,struct ptys2ethtool_config ** arr,u32 * size)224 static void mlx5e_ethtool_get_speed_arr(struct mlx5_core_dev *mdev,
225 					struct ptys2ethtool_config **arr,
226 					u32 *size)
227 {
228 	bool ext = mlx5e_ptys_ext_supported(mdev);
229 
230 	*arr = ext ? ptys2ext_ethtool_table : ptys2legacy_ethtool_table;
231 	*size = ext ? ARRAY_SIZE(ptys2ext_ethtool_table) :
232 		      ARRAY_SIZE(ptys2legacy_ethtool_table);
233 }
234 
235 typedef int (*mlx5e_pflag_handler)(struct net_device *netdev, bool enable);
236 
237 struct pflag_desc {
238 	char name[ETH_GSTRING_LEN];
239 	mlx5e_pflag_handler handler;
240 };
241 
242 static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS];
243 
mlx5e_ethtool_get_sset_count(struct mlx5e_priv * priv,int sset)244 int mlx5e_ethtool_get_sset_count(struct mlx5e_priv *priv, int sset)
245 {
246 	switch (sset) {
247 	case ETH_SS_STATS:
248 		return mlx5e_stats_total_num(priv);
249 	case ETH_SS_PRIV_FLAGS:
250 		return MLX5E_NUM_PFLAGS;
251 	case ETH_SS_TEST:
252 		return mlx5e_self_test_num(priv);
253 	default:
254 		return -EOPNOTSUPP;
255 	}
256 }
257 
mlx5e_get_sset_count(struct net_device * dev,int sset)258 static int mlx5e_get_sset_count(struct net_device *dev, int sset)
259 {
260 	struct mlx5e_priv *priv = netdev_priv(dev);
261 
262 	return mlx5e_ethtool_get_sset_count(priv, sset);
263 }
264 
mlx5e_ethtool_get_strings(struct mlx5e_priv * priv,u32 stringset,u8 * data)265 void mlx5e_ethtool_get_strings(struct mlx5e_priv *priv, u32 stringset, u8 *data)
266 {
267 	int i;
268 
269 	switch (stringset) {
270 	case ETH_SS_PRIV_FLAGS:
271 		for (i = 0; i < MLX5E_NUM_PFLAGS; i++)
272 			strcpy(data + i * ETH_GSTRING_LEN,
273 			       mlx5e_priv_flags[i].name);
274 		break;
275 
276 	case ETH_SS_TEST:
277 		mlx5e_self_test_fill_strings(priv, data);
278 		break;
279 
280 	case ETH_SS_STATS:
281 		mlx5e_stats_fill_strings(priv, data);
282 		break;
283 	}
284 }
285 
mlx5e_get_strings(struct net_device * dev,u32 stringset,u8 * data)286 static void mlx5e_get_strings(struct net_device *dev, u32 stringset, u8 *data)
287 {
288 	struct mlx5e_priv *priv = netdev_priv(dev);
289 
290 	mlx5e_ethtool_get_strings(priv, stringset, data);
291 }
292 
mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv * priv,struct ethtool_stats * stats,u64 * data)293 void mlx5e_ethtool_get_ethtool_stats(struct mlx5e_priv *priv,
294 				     struct ethtool_stats *stats, u64 *data)
295 {
296 	int idx = 0;
297 
298 	mutex_lock(&priv->state_lock);
299 	mlx5e_stats_update(priv);
300 	mutex_unlock(&priv->state_lock);
301 
302 	mlx5e_stats_fill(priv, data, idx);
303 }
304 
mlx5e_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)305 static void mlx5e_get_ethtool_stats(struct net_device *dev,
306 				    struct ethtool_stats *stats,
307 				    u64 *data)
308 {
309 	struct mlx5e_priv *priv = netdev_priv(dev);
310 
311 	mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
312 }
313 
mlx5e_ethtool_get_ringparam(struct mlx5e_priv * priv,struct ethtool_ringparam * param,struct kernel_ethtool_ringparam * kernel_param)314 void mlx5e_ethtool_get_ringparam(struct mlx5e_priv *priv,
315 				 struct ethtool_ringparam *param,
316 				 struct kernel_ethtool_ringparam *kernel_param)
317 {
318 	/* Limitation for regular RQ. XSK RQ may clamp the queue length in
319 	 * mlx5e_mpwqe_get_log_rq_size.
320 	 */
321 	u8 max_log_mpwrq_pkts = mlx5e_mpwrq_max_log_rq_pkts(priv->mdev,
322 							    PAGE_SHIFT,
323 							    MLX5E_MPWRQ_UMR_MODE_ALIGNED);
324 
325 	param->rx_max_pending = 1 << min_t(u8, MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE,
326 					   max_log_mpwrq_pkts);
327 	param->tx_max_pending = 1 << MLX5E_PARAMS_MAXIMUM_LOG_SQ_SIZE;
328 	param->rx_pending     = 1 << priv->channels.params.log_rq_mtu_frames;
329 	param->tx_pending     = 1 << priv->channels.params.log_sq_size;
330 
331 	kernel_param->tcp_data_split =
332 		(priv->channels.params.packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO) ?
333 		ETHTOOL_TCP_DATA_SPLIT_ENABLED :
334 		ETHTOOL_TCP_DATA_SPLIT_DISABLED;
335 }
336 
mlx5e_get_ringparam(struct net_device * dev,struct ethtool_ringparam * param,struct kernel_ethtool_ringparam * kernel_param,struct netlink_ext_ack * extack)337 static void mlx5e_get_ringparam(struct net_device *dev,
338 				struct ethtool_ringparam *param,
339 				struct kernel_ethtool_ringparam *kernel_param,
340 				struct netlink_ext_ack *extack)
341 {
342 	struct mlx5e_priv *priv = netdev_priv(dev);
343 
344 	mlx5e_ethtool_get_ringparam(priv, param, kernel_param);
345 }
346 
mlx5e_ethtool_set_ringparam(struct mlx5e_priv * priv,struct ethtool_ringparam * param)347 int mlx5e_ethtool_set_ringparam(struct mlx5e_priv *priv,
348 				struct ethtool_ringparam *param)
349 {
350 	struct mlx5e_params new_params;
351 	u8 log_rq_size;
352 	u8 log_sq_size;
353 	int err = 0;
354 
355 	if (param->rx_jumbo_pending) {
356 		netdev_info(priv->netdev, "%s: rx_jumbo_pending not supported\n",
357 			    __func__);
358 		return -EINVAL;
359 	}
360 	if (param->rx_mini_pending) {
361 		netdev_info(priv->netdev, "%s: rx_mini_pending not supported\n",
362 			    __func__);
363 		return -EINVAL;
364 	}
365 
366 	if (param->rx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE)) {
367 		netdev_info(priv->netdev, "%s: rx_pending (%d) < min (%d)\n",
368 			    __func__, param->rx_pending,
369 			    1 << MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE);
370 		return -EINVAL;
371 	}
372 
373 	if (param->tx_pending < (1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)) {
374 		netdev_info(priv->netdev, "%s: tx_pending (%d) < min (%d)\n",
375 			    __func__, param->tx_pending,
376 			    1 << MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE);
377 		return -EINVAL;
378 	}
379 
380 	log_rq_size = order_base_2(param->rx_pending);
381 	log_sq_size = order_base_2(param->tx_pending);
382 
383 	if (log_rq_size == priv->channels.params.log_rq_mtu_frames &&
384 	    log_sq_size == priv->channels.params.log_sq_size)
385 		return 0;
386 
387 	mutex_lock(&priv->state_lock);
388 
389 	new_params = priv->channels.params;
390 	new_params.log_rq_mtu_frames = log_rq_size;
391 	new_params.log_sq_size = log_sq_size;
392 
393 	err = mlx5e_validate_params(priv->mdev, &new_params);
394 	if (err)
395 		goto unlock;
396 
397 	err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
398 
399 unlock:
400 	mutex_unlock(&priv->state_lock);
401 
402 	return err;
403 }
404 
mlx5e_set_ringparam(struct net_device * dev,struct ethtool_ringparam * param,struct kernel_ethtool_ringparam * kernel_param,struct netlink_ext_ack * extack)405 static int mlx5e_set_ringparam(struct net_device *dev,
406 			       struct ethtool_ringparam *param,
407 			       struct kernel_ethtool_ringparam *kernel_param,
408 			       struct netlink_ext_ack *extack)
409 {
410 	struct mlx5e_priv *priv = netdev_priv(dev);
411 
412 	return mlx5e_ethtool_set_ringparam(priv, param);
413 }
414 
mlx5e_ethtool_get_channels(struct mlx5e_priv * priv,struct ethtool_channels * ch)415 void mlx5e_ethtool_get_channels(struct mlx5e_priv *priv,
416 				struct ethtool_channels *ch)
417 {
418 	mutex_lock(&priv->state_lock);
419 	ch->max_combined   = priv->max_nch;
420 	ch->combined_count = priv->channels.params.num_channels;
421 	mutex_unlock(&priv->state_lock);
422 }
423 
mlx5e_get_channels(struct net_device * dev,struct ethtool_channels * ch)424 static void mlx5e_get_channels(struct net_device *dev,
425 			       struct ethtool_channels *ch)
426 {
427 	struct mlx5e_priv *priv = netdev_priv(dev);
428 
429 	mlx5e_ethtool_get_channels(priv, ch);
430 }
431 
mlx5e_ethtool_set_channels(struct mlx5e_priv * priv,struct ethtool_channels * ch)432 int mlx5e_ethtool_set_channels(struct mlx5e_priv *priv,
433 			       struct ethtool_channels *ch)
434 {
435 	struct mlx5e_params *cur_params = &priv->channels.params;
436 	unsigned int count = ch->combined_count;
437 	struct mlx5e_params new_params;
438 	bool arfs_enabled;
439 	int rss_cnt;
440 	bool opened;
441 	int err = 0;
442 
443 	if (!count) {
444 		netdev_info(priv->netdev, "%s: combined_count=0 not supported\n",
445 			    __func__);
446 		return -EINVAL;
447 	}
448 
449 	if (cur_params->num_channels == count)
450 		return 0;
451 
452 	mutex_lock(&priv->state_lock);
453 
454 	/* Don't allow changing the number of channels if HTB offload is active,
455 	 * because the numeration of the QoS SQs will change, while per-queue
456 	 * qdiscs are attached.
457 	 */
458 	if (mlx5e_selq_is_htb_enabled(&priv->selq)) {
459 		err = -EINVAL;
460 		netdev_err(priv->netdev, "%s: HTB offload is active, cannot change the number of channels\n",
461 			   __func__);
462 		goto out;
463 	}
464 
465 	/* Don't allow changing the number of channels if non-default RSS contexts exist,
466 	 * the kernel doesn't protect against set_channels operations that break them.
467 	 */
468 	rss_cnt = mlx5e_rx_res_rss_cnt(priv->rx_res) - 1;
469 	if (rss_cnt) {
470 		err = -EINVAL;
471 		netdev_err(priv->netdev, "%s: Non-default RSS contexts exist (%d), cannot change the number of channels\n",
472 			   __func__, rss_cnt);
473 		goto out;
474 	}
475 
476 	/* Don't allow changing the number of channels if MQPRIO mode channel offload is active,
477 	 * because it defines a partition over the channels queues.
478 	 */
479 	if (cur_params->mqprio.mode == TC_MQPRIO_MODE_CHANNEL) {
480 		err = -EINVAL;
481 		netdev_err(priv->netdev, "%s: MQPRIO mode channel offload is active, cannot change the number of channels\n",
482 			   __func__);
483 		goto out;
484 	}
485 
486 	new_params = *cur_params;
487 	new_params.num_channels = count;
488 
489 	opened = test_bit(MLX5E_STATE_OPENED, &priv->state);
490 
491 	arfs_enabled = opened && (priv->netdev->features & NETIF_F_NTUPLE);
492 	if (arfs_enabled)
493 		mlx5e_arfs_disable(priv->fs);
494 
495 	/* Switch to new channels, set new parameters and close old ones */
496 	err = mlx5e_safe_switch_params(priv, &new_params,
497 				       mlx5e_num_channels_changed_ctx, NULL, true);
498 
499 	if (arfs_enabled) {
500 		int err2 = mlx5e_arfs_enable(priv->fs);
501 
502 		if (err2)
503 			netdev_err(priv->netdev, "%s: mlx5e_arfs_enable failed: %d\n",
504 				   __func__, err2);
505 	}
506 
507 out:
508 	mutex_unlock(&priv->state_lock);
509 
510 	return err;
511 }
512 
mlx5e_set_channels(struct net_device * dev,struct ethtool_channels * ch)513 static int mlx5e_set_channels(struct net_device *dev,
514 			      struct ethtool_channels *ch)
515 {
516 	struct mlx5e_priv *priv = netdev_priv(dev);
517 
518 	return mlx5e_ethtool_set_channels(priv, ch);
519 }
520 
mlx5e_ethtool_get_coalesce(struct mlx5e_priv * priv,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal)521 int mlx5e_ethtool_get_coalesce(struct mlx5e_priv *priv,
522 			       struct ethtool_coalesce *coal,
523 			       struct kernel_ethtool_coalesce *kernel_coal)
524 {
525 	struct dim_cq_moder *rx_moder, *tx_moder;
526 
527 	if (!MLX5_CAP_GEN(priv->mdev, cq_moderation))
528 		return -EOPNOTSUPP;
529 
530 	rx_moder = &priv->channels.params.rx_cq_moderation;
531 	coal->rx_coalesce_usecs		= rx_moder->usec;
532 	coal->rx_max_coalesced_frames	= rx_moder->pkts;
533 	coal->use_adaptive_rx_coalesce	= priv->channels.params.rx_dim_enabled;
534 
535 	tx_moder = &priv->channels.params.tx_cq_moderation;
536 	coal->tx_coalesce_usecs		= tx_moder->usec;
537 	coal->tx_max_coalesced_frames	= tx_moder->pkts;
538 	coal->use_adaptive_tx_coalesce	= priv->channels.params.tx_dim_enabled;
539 
540 	kernel_coal->use_cqe_mode_rx =
541 		MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_BASED_MODER);
542 	kernel_coal->use_cqe_mode_tx =
543 		MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_CQE_BASED_MODER);
544 
545 	return 0;
546 }
547 
mlx5e_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)548 static int mlx5e_get_coalesce(struct net_device *netdev,
549 			      struct ethtool_coalesce *coal,
550 			      struct kernel_ethtool_coalesce *kernel_coal,
551 			      struct netlink_ext_ack *extack)
552 {
553 	struct mlx5e_priv *priv = netdev_priv(netdev);
554 
555 	return mlx5e_ethtool_get_coalesce(priv, coal, kernel_coal);
556 }
557 
558 #define MLX5E_MAX_COAL_TIME		MLX5_MAX_CQ_PERIOD
559 #define MLX5E_MAX_COAL_FRAMES		MLX5_MAX_CQ_COUNT
560 
561 static void
mlx5e_set_priv_channels_tx_coalesce(struct mlx5e_priv * priv,struct ethtool_coalesce * coal)562 mlx5e_set_priv_channels_tx_coalesce(struct mlx5e_priv *priv, struct ethtool_coalesce *coal)
563 {
564 	struct mlx5_core_dev *mdev = priv->mdev;
565 	int tc;
566 	int i;
567 
568 	for (i = 0; i < priv->channels.num; ++i) {
569 		struct mlx5e_channel *c = priv->channels.c[i];
570 
571 		for (tc = 0; tc < c->num_tc; tc++) {
572 			mlx5_core_modify_cq_moderation(mdev,
573 						&c->sq[tc].cq.mcq,
574 						coal->tx_coalesce_usecs,
575 						coal->tx_max_coalesced_frames);
576 		}
577 	}
578 }
579 
580 static void
mlx5e_set_priv_channels_rx_coalesce(struct mlx5e_priv * priv,struct ethtool_coalesce * coal)581 mlx5e_set_priv_channels_rx_coalesce(struct mlx5e_priv *priv, struct ethtool_coalesce *coal)
582 {
583 	struct mlx5_core_dev *mdev = priv->mdev;
584 	int i;
585 
586 	for (i = 0; i < priv->channels.num; ++i) {
587 		struct mlx5e_channel *c = priv->channels.c[i];
588 
589 		mlx5_core_modify_cq_moderation(mdev, &c->rq.cq.mcq,
590 					       coal->rx_coalesce_usecs,
591 					       coal->rx_max_coalesced_frames);
592 	}
593 }
594 
595 /* convert a boolean value of cq_mode to mlx5 period mode
596  * true  : MLX5_CQ_PERIOD_MODE_START_FROM_CQE
597  * false : MLX5_CQ_PERIOD_MODE_START_FROM_EQE
598  */
cqe_mode_to_period_mode(bool val)599 static int cqe_mode_to_period_mode(bool val)
600 {
601 	return val ? MLX5_CQ_PERIOD_MODE_START_FROM_CQE : MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
602 }
603 
mlx5e_ethtool_set_coalesce(struct mlx5e_priv * priv,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)604 int mlx5e_ethtool_set_coalesce(struct mlx5e_priv *priv,
605 			       struct ethtool_coalesce *coal,
606 			       struct kernel_ethtool_coalesce *kernel_coal,
607 			       struct netlink_ext_ack *extack)
608 {
609 	struct dim_cq_moder *rx_moder, *tx_moder;
610 	struct mlx5_core_dev *mdev = priv->mdev;
611 	struct mlx5e_params new_params;
612 	bool reset_rx, reset_tx;
613 	bool reset = true;
614 	u8 cq_period_mode;
615 	int err = 0;
616 
617 	if (!MLX5_CAP_GEN(mdev, cq_moderation))
618 		return -EOPNOTSUPP;
619 
620 	if (coal->tx_coalesce_usecs > MLX5E_MAX_COAL_TIME ||
621 	    coal->rx_coalesce_usecs > MLX5E_MAX_COAL_TIME) {
622 		netdev_info(priv->netdev, "%s: maximum coalesce time supported is %lu usecs\n",
623 			    __func__, MLX5E_MAX_COAL_TIME);
624 		return -ERANGE;
625 	}
626 
627 	if (coal->tx_max_coalesced_frames > MLX5E_MAX_COAL_FRAMES ||
628 	    coal->rx_max_coalesced_frames > MLX5E_MAX_COAL_FRAMES) {
629 		netdev_info(priv->netdev, "%s: maximum coalesced frames supported is %lu\n",
630 			    __func__, MLX5E_MAX_COAL_FRAMES);
631 		return -ERANGE;
632 	}
633 
634 	if ((kernel_coal->use_cqe_mode_rx || kernel_coal->use_cqe_mode_tx) &&
635 	    !MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe)) {
636 		NL_SET_ERR_MSG_MOD(extack, "cqe_mode_rx/tx is not supported on this device");
637 		return -EOPNOTSUPP;
638 	}
639 
640 	mutex_lock(&priv->state_lock);
641 	new_params = priv->channels.params;
642 
643 	rx_moder          = &new_params.rx_cq_moderation;
644 	rx_moder->usec    = coal->rx_coalesce_usecs;
645 	rx_moder->pkts    = coal->rx_max_coalesced_frames;
646 	new_params.rx_dim_enabled = !!coal->use_adaptive_rx_coalesce;
647 
648 	tx_moder          = &new_params.tx_cq_moderation;
649 	tx_moder->usec    = coal->tx_coalesce_usecs;
650 	tx_moder->pkts    = coal->tx_max_coalesced_frames;
651 	new_params.tx_dim_enabled = !!coal->use_adaptive_tx_coalesce;
652 
653 	reset_rx = !!coal->use_adaptive_rx_coalesce != priv->channels.params.rx_dim_enabled;
654 	reset_tx = !!coal->use_adaptive_tx_coalesce != priv->channels.params.tx_dim_enabled;
655 
656 	cq_period_mode = cqe_mode_to_period_mode(kernel_coal->use_cqe_mode_rx);
657 	if (cq_period_mode != rx_moder->cq_period_mode) {
658 		mlx5e_set_rx_cq_mode_params(&new_params, cq_period_mode);
659 		reset_rx = true;
660 	}
661 
662 	cq_period_mode = cqe_mode_to_period_mode(kernel_coal->use_cqe_mode_tx);
663 	if (cq_period_mode != tx_moder->cq_period_mode) {
664 		mlx5e_set_tx_cq_mode_params(&new_params, cq_period_mode);
665 		reset_tx = true;
666 	}
667 
668 	if (reset_rx) {
669 		u8 mode = MLX5E_GET_PFLAG(&new_params,
670 					  MLX5E_PFLAG_RX_CQE_BASED_MODER);
671 
672 		mlx5e_reset_rx_moderation(&new_params, mode);
673 	}
674 	if (reset_tx) {
675 		u8 mode = MLX5E_GET_PFLAG(&new_params,
676 					  MLX5E_PFLAG_TX_CQE_BASED_MODER);
677 
678 		mlx5e_reset_tx_moderation(&new_params, mode);
679 	}
680 
681 	/* If DIM state hasn't changed, it's possible to modify interrupt
682 	 * moderation parameters on the fly, even if the channels are open.
683 	 */
684 	if (!reset_rx && !reset_tx && test_bit(MLX5E_STATE_OPENED, &priv->state)) {
685 		if (!coal->use_adaptive_rx_coalesce)
686 			mlx5e_set_priv_channels_rx_coalesce(priv, coal);
687 		if (!coal->use_adaptive_tx_coalesce)
688 			mlx5e_set_priv_channels_tx_coalesce(priv, coal);
689 		reset = false;
690 	}
691 
692 	err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, reset);
693 
694 	mutex_unlock(&priv->state_lock);
695 	return err;
696 }
697 
mlx5e_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)698 static int mlx5e_set_coalesce(struct net_device *netdev,
699 			      struct ethtool_coalesce *coal,
700 			      struct kernel_ethtool_coalesce *kernel_coal,
701 			      struct netlink_ext_ack *extack)
702 {
703 	struct mlx5e_priv *priv = netdev_priv(netdev);
704 
705 	return mlx5e_ethtool_set_coalesce(priv, coal, kernel_coal, extack);
706 }
707 
ptys2ethtool_supported_link(struct mlx5_core_dev * mdev,unsigned long * supported_modes,u32 eth_proto_cap)708 static void ptys2ethtool_supported_link(struct mlx5_core_dev *mdev,
709 					unsigned long *supported_modes,
710 					u32 eth_proto_cap)
711 {
712 	unsigned long proto_cap = eth_proto_cap;
713 	struct ptys2ethtool_config *table;
714 	u32 max_size;
715 	int proto;
716 
717 	mlx5e_ethtool_get_speed_arr(mdev, &table, &max_size);
718 	for_each_set_bit(proto, &proto_cap, max_size)
719 		bitmap_or(supported_modes, supported_modes,
720 			  table[proto].supported,
721 			  __ETHTOOL_LINK_MODE_MASK_NBITS);
722 }
723 
ptys2ethtool_adver_link(unsigned long * advertising_modes,u32 eth_proto_cap,bool ext)724 static void ptys2ethtool_adver_link(unsigned long *advertising_modes,
725 				    u32 eth_proto_cap, bool ext)
726 {
727 	unsigned long proto_cap = eth_proto_cap;
728 	struct ptys2ethtool_config *table;
729 	u32 max_size;
730 	int proto;
731 
732 	table = ext ? ptys2ext_ethtool_table : ptys2legacy_ethtool_table;
733 	max_size = ext ? ARRAY_SIZE(ptys2ext_ethtool_table) :
734 			 ARRAY_SIZE(ptys2legacy_ethtool_table);
735 
736 	for_each_set_bit(proto, &proto_cap, max_size)
737 		bitmap_or(advertising_modes, advertising_modes,
738 			  table[proto].advertised,
739 			  __ETHTOOL_LINK_MODE_MASK_NBITS);
740 }
741 
742 static const u32 pplm_fec_2_ethtool[] = {
743 	[MLX5E_FEC_NOFEC] = ETHTOOL_FEC_OFF,
744 	[MLX5E_FEC_FIRECODE] = ETHTOOL_FEC_BASER,
745 	[MLX5E_FEC_RS_528_514] = ETHTOOL_FEC_RS,
746 	[MLX5E_FEC_RS_544_514] = ETHTOOL_FEC_RS,
747 	[MLX5E_FEC_LLRS_272_257_1] = ETHTOOL_FEC_LLRS,
748 };
749 
pplm2ethtool_fec(u_long fec_mode,unsigned long size)750 static u32 pplm2ethtool_fec(u_long fec_mode, unsigned long size)
751 {
752 	int mode = 0;
753 
754 	if (!fec_mode)
755 		return ETHTOOL_FEC_AUTO;
756 
757 	mode = find_first_bit(&fec_mode, size);
758 
759 	if (mode < ARRAY_SIZE(pplm_fec_2_ethtool))
760 		return pplm_fec_2_ethtool[mode];
761 
762 	return 0;
763 }
764 
765 #define MLX5E_ADVERTISE_SUPPORTED_FEC(mlx5_fec, ethtool_fec)		\
766 	do {								\
767 		if (mlx5e_fec_in_caps(dev, 1 << (mlx5_fec)))		\
768 			__set_bit(ethtool_fec,				\
769 				  link_ksettings->link_modes.supported);\
770 	} while (0)
771 
772 static const u32 pplm_fec_2_ethtool_linkmodes[] = {
773 	[MLX5E_FEC_NOFEC] = ETHTOOL_LINK_MODE_FEC_NONE_BIT,
774 	[MLX5E_FEC_FIRECODE] = ETHTOOL_LINK_MODE_FEC_BASER_BIT,
775 	[MLX5E_FEC_RS_528_514] = ETHTOOL_LINK_MODE_FEC_RS_BIT,
776 	[MLX5E_FEC_RS_544_514] = ETHTOOL_LINK_MODE_FEC_RS_BIT,
777 	[MLX5E_FEC_LLRS_272_257_1] = ETHTOOL_LINK_MODE_FEC_LLRS_BIT,
778 };
779 
get_fec_supported_advertised(struct mlx5_core_dev * dev,struct ethtool_link_ksettings * link_ksettings)780 static int get_fec_supported_advertised(struct mlx5_core_dev *dev,
781 					struct ethtool_link_ksettings *link_ksettings)
782 {
783 	unsigned long active_fec_long;
784 	u32 active_fec;
785 	u32 bitn;
786 	int err;
787 
788 	err = mlx5e_get_fec_mode(dev, &active_fec, NULL);
789 	if (err)
790 		return (err == -EOPNOTSUPP) ? 0 : err;
791 
792 	MLX5E_ADVERTISE_SUPPORTED_FEC(MLX5E_FEC_NOFEC,
793 				      ETHTOOL_LINK_MODE_FEC_NONE_BIT);
794 	MLX5E_ADVERTISE_SUPPORTED_FEC(MLX5E_FEC_FIRECODE,
795 				      ETHTOOL_LINK_MODE_FEC_BASER_BIT);
796 	MLX5E_ADVERTISE_SUPPORTED_FEC(MLX5E_FEC_RS_528_514,
797 				      ETHTOOL_LINK_MODE_FEC_RS_BIT);
798 	MLX5E_ADVERTISE_SUPPORTED_FEC(MLX5E_FEC_LLRS_272_257_1,
799 				      ETHTOOL_LINK_MODE_FEC_LLRS_BIT);
800 
801 	active_fec_long = active_fec;
802 	/* active fec is a bit set, find out which bit is set and
803 	 * advertise the corresponding ethtool bit
804 	 */
805 	bitn = find_first_bit(&active_fec_long, sizeof(active_fec_long) * BITS_PER_BYTE);
806 	if (bitn < ARRAY_SIZE(pplm_fec_2_ethtool_linkmodes))
807 		__set_bit(pplm_fec_2_ethtool_linkmodes[bitn],
808 			  link_ksettings->link_modes.advertising);
809 
810 	return 0;
811 }
812 
ptys2ethtool_supported_advertised_port(struct mlx5_core_dev * mdev,struct ethtool_link_ksettings * link_ksettings,u32 eth_proto_cap,u8 connector_type)813 static void ptys2ethtool_supported_advertised_port(struct mlx5_core_dev *mdev,
814 						   struct ethtool_link_ksettings *link_ksettings,
815 						   u32 eth_proto_cap, u8 connector_type)
816 {
817 	if (!MLX5_CAP_PCAM_FEATURE(mdev, ptys_connector_type)) {
818 		if (eth_proto_cap & (MLX5E_PROT_MASK(MLX5E_10GBASE_CR)
819 				   | MLX5E_PROT_MASK(MLX5E_10GBASE_SR)
820 				   | MLX5E_PROT_MASK(MLX5E_40GBASE_CR4)
821 				   | MLX5E_PROT_MASK(MLX5E_40GBASE_SR4)
822 				   | MLX5E_PROT_MASK(MLX5E_100GBASE_SR4)
823 				   | MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII))) {
824 			ethtool_link_ksettings_add_link_mode(link_ksettings,
825 							     supported,
826 							     FIBRE);
827 			ethtool_link_ksettings_add_link_mode(link_ksettings,
828 							     advertising,
829 							     FIBRE);
830 		}
831 
832 		if (eth_proto_cap & (MLX5E_PROT_MASK(MLX5E_100GBASE_KR4)
833 				   | MLX5E_PROT_MASK(MLX5E_40GBASE_KR4)
834 				   | MLX5E_PROT_MASK(MLX5E_10GBASE_KR)
835 				   | MLX5E_PROT_MASK(MLX5E_10GBASE_KX4)
836 				   | MLX5E_PROT_MASK(MLX5E_1000BASE_KX))) {
837 			ethtool_link_ksettings_add_link_mode(link_ksettings,
838 							     supported,
839 							     Backplane);
840 			ethtool_link_ksettings_add_link_mode(link_ksettings,
841 							     advertising,
842 							     Backplane);
843 		}
844 		return;
845 	}
846 
847 	switch (connector_type) {
848 	case MLX5E_PORT_TP:
849 		ethtool_link_ksettings_add_link_mode(link_ksettings,
850 						     supported, TP);
851 		ethtool_link_ksettings_add_link_mode(link_ksettings,
852 						     advertising, TP);
853 		break;
854 	case MLX5E_PORT_AUI:
855 		ethtool_link_ksettings_add_link_mode(link_ksettings,
856 						     supported, AUI);
857 		ethtool_link_ksettings_add_link_mode(link_ksettings,
858 						     advertising, AUI);
859 		break;
860 	case MLX5E_PORT_BNC:
861 		ethtool_link_ksettings_add_link_mode(link_ksettings,
862 						     supported, BNC);
863 		ethtool_link_ksettings_add_link_mode(link_ksettings,
864 						     advertising, BNC);
865 		break;
866 	case MLX5E_PORT_MII:
867 		ethtool_link_ksettings_add_link_mode(link_ksettings,
868 						     supported, MII);
869 		ethtool_link_ksettings_add_link_mode(link_ksettings,
870 						     advertising, MII);
871 		break;
872 	case MLX5E_PORT_FIBRE:
873 		ethtool_link_ksettings_add_link_mode(link_ksettings,
874 						     supported, FIBRE);
875 		ethtool_link_ksettings_add_link_mode(link_ksettings,
876 						     advertising, FIBRE);
877 		break;
878 	case MLX5E_PORT_DA:
879 		ethtool_link_ksettings_add_link_mode(link_ksettings,
880 						     supported, Backplane);
881 		ethtool_link_ksettings_add_link_mode(link_ksettings,
882 						     advertising, Backplane);
883 		break;
884 	case MLX5E_PORT_NONE:
885 	case MLX5E_PORT_OTHER:
886 	default:
887 		break;
888 	}
889 }
890 
get_speed_duplex(struct net_device * netdev,u32 eth_proto_oper,bool force_legacy,u16 data_rate_oper,struct ethtool_link_ksettings * link_ksettings)891 static void get_speed_duplex(struct net_device *netdev,
892 			     u32 eth_proto_oper, bool force_legacy,
893 			     u16 data_rate_oper,
894 			     struct ethtool_link_ksettings *link_ksettings)
895 {
896 	struct mlx5e_priv *priv = netdev_priv(netdev);
897 	u32 speed = SPEED_UNKNOWN;
898 	u8 duplex = DUPLEX_UNKNOWN;
899 
900 	if (!netif_carrier_ok(netdev))
901 		goto out;
902 
903 	speed = mlx5e_port_ptys2speed(priv->mdev, eth_proto_oper, force_legacy);
904 	if (!speed) {
905 		if (data_rate_oper)
906 			speed = 100 * data_rate_oper;
907 		else
908 			speed = SPEED_UNKNOWN;
909 		goto out;
910 	}
911 
912 	duplex = DUPLEX_FULL;
913 
914 out:
915 	link_ksettings->base.speed = speed;
916 	link_ksettings->base.duplex = duplex;
917 }
918 
get_supported(struct mlx5_core_dev * mdev,u32 eth_proto_cap,struct ethtool_link_ksettings * link_ksettings)919 static void get_supported(struct mlx5_core_dev *mdev, u32 eth_proto_cap,
920 			  struct ethtool_link_ksettings *link_ksettings)
921 {
922 	unsigned long *supported = link_ksettings->link_modes.supported;
923 	ptys2ethtool_supported_link(mdev, supported, eth_proto_cap);
924 
925 	ethtool_link_ksettings_add_link_mode(link_ksettings, supported, Pause);
926 }
927 
get_advertising(u32 eth_proto_cap,u8 tx_pause,u8 rx_pause,struct ethtool_link_ksettings * link_ksettings,bool ext)928 static void get_advertising(u32 eth_proto_cap, u8 tx_pause, u8 rx_pause,
929 			    struct ethtool_link_ksettings *link_ksettings,
930 			    bool ext)
931 {
932 	unsigned long *advertising = link_ksettings->link_modes.advertising;
933 	ptys2ethtool_adver_link(advertising, eth_proto_cap, ext);
934 
935 	if (rx_pause)
936 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Pause);
937 	if (tx_pause ^ rx_pause)
938 		ethtool_link_ksettings_add_link_mode(link_ksettings, advertising, Asym_Pause);
939 }
940 
941 static int ptys2connector_type[MLX5E_CONNECTOR_TYPE_NUMBER] = {
942 		[MLX5E_PORT_UNKNOWN]            = PORT_OTHER,
943 		[MLX5E_PORT_NONE]               = PORT_NONE,
944 		[MLX5E_PORT_TP]                 = PORT_TP,
945 		[MLX5E_PORT_AUI]                = PORT_AUI,
946 		[MLX5E_PORT_BNC]                = PORT_BNC,
947 		[MLX5E_PORT_MII]                = PORT_MII,
948 		[MLX5E_PORT_FIBRE]              = PORT_FIBRE,
949 		[MLX5E_PORT_DA]                 = PORT_DA,
950 		[MLX5E_PORT_OTHER]              = PORT_OTHER,
951 	};
952 
get_connector_port(struct mlx5_core_dev * mdev,u32 eth_proto,u8 connector_type)953 static u8 get_connector_port(struct mlx5_core_dev *mdev, u32 eth_proto, u8 connector_type)
954 {
955 	if (MLX5_CAP_PCAM_FEATURE(mdev, ptys_connector_type))
956 		return ptys2connector_type[connector_type];
957 
958 	if (eth_proto &
959 	    (MLX5E_PROT_MASK(MLX5E_10GBASE_SR)   |
960 	     MLX5E_PROT_MASK(MLX5E_40GBASE_SR4)  |
961 	     MLX5E_PROT_MASK(MLX5E_100GBASE_SR4) |
962 	     MLX5E_PROT_MASK(MLX5E_1000BASE_CX_SGMII))) {
963 		return PORT_FIBRE;
964 	}
965 
966 	if (eth_proto &
967 	    (MLX5E_PROT_MASK(MLX5E_40GBASE_CR4) |
968 	     MLX5E_PROT_MASK(MLX5E_10GBASE_CR)  |
969 	     MLX5E_PROT_MASK(MLX5E_100GBASE_CR4))) {
970 		return PORT_DA;
971 	}
972 
973 	if (eth_proto &
974 	    (MLX5E_PROT_MASK(MLX5E_10GBASE_KX4) |
975 	     MLX5E_PROT_MASK(MLX5E_10GBASE_KR)  |
976 	     MLX5E_PROT_MASK(MLX5E_40GBASE_KR4) |
977 	     MLX5E_PROT_MASK(MLX5E_100GBASE_KR4))) {
978 		return PORT_NONE;
979 	}
980 
981 	return PORT_OTHER;
982 }
983 
get_lp_advertising(struct mlx5_core_dev * mdev,u32 eth_proto_lp,struct ethtool_link_ksettings * link_ksettings)984 static void get_lp_advertising(struct mlx5_core_dev *mdev, u32 eth_proto_lp,
985 			       struct ethtool_link_ksettings *link_ksettings)
986 {
987 	unsigned long *lp_advertising = link_ksettings->link_modes.lp_advertising;
988 	bool ext = mlx5e_ptys_ext_supported(mdev);
989 
990 	ptys2ethtool_adver_link(lp_advertising, eth_proto_lp, ext);
991 }
992 
mlx5e_ethtool_get_link_ksettings(struct mlx5e_priv * priv,struct ethtool_link_ksettings * link_ksettings)993 int mlx5e_ethtool_get_link_ksettings(struct mlx5e_priv *priv,
994 				     struct ethtool_link_ksettings *link_ksettings)
995 {
996 	struct mlx5_core_dev *mdev = priv->mdev;
997 	u32 out[MLX5_ST_SZ_DW(ptys_reg)] = {};
998 	u32 eth_proto_admin;
999 	u8 an_disable_admin;
1000 	u16 data_rate_oper;
1001 	u32 eth_proto_oper;
1002 	u32 eth_proto_cap;
1003 	u8 connector_type;
1004 	u32 rx_pause = 0;
1005 	u32 tx_pause = 0;
1006 	u32 eth_proto_lp;
1007 	bool admin_ext;
1008 	u8 an_status;
1009 	bool ext;
1010 	int err;
1011 
1012 	err = mlx5_query_port_ptys(mdev, out, sizeof(out), MLX5_PTYS_EN, 1);
1013 	if (err) {
1014 		netdev_err(priv->netdev, "%s: query port ptys failed: %d\n",
1015 			   __func__, err);
1016 		goto err_query_regs;
1017 	}
1018 	ext = !!MLX5_GET_ETH_PROTO(ptys_reg, out, true, eth_proto_capability);
1019 	eth_proto_cap    = MLX5_GET_ETH_PROTO(ptys_reg, out, ext,
1020 					      eth_proto_capability);
1021 	eth_proto_admin  = MLX5_GET_ETH_PROTO(ptys_reg, out, ext,
1022 					      eth_proto_admin);
1023 	/* Fields: eth_proto_admin and ext_eth_proto_admin  are
1024 	 * mutually exclusive. Hence try reading legacy advertising
1025 	 * when extended advertising is zero.
1026 	 * admin_ext indicates which proto_admin (ext vs. legacy)
1027 	 * should be read and interpreted
1028 	 */
1029 	admin_ext = ext;
1030 	if (ext && !eth_proto_admin) {
1031 		eth_proto_admin  = MLX5_GET_ETH_PROTO(ptys_reg, out, false,
1032 						      eth_proto_admin);
1033 		admin_ext = false;
1034 	}
1035 
1036 	eth_proto_oper   = MLX5_GET_ETH_PROTO(ptys_reg, out, admin_ext,
1037 					      eth_proto_oper);
1038 	eth_proto_lp	    = MLX5_GET(ptys_reg, out, eth_proto_lp_advertise);
1039 	an_disable_admin    = MLX5_GET(ptys_reg, out, an_disable_admin);
1040 	an_status	    = MLX5_GET(ptys_reg, out, an_status);
1041 	connector_type	    = MLX5_GET(ptys_reg, out, connector_type);
1042 	data_rate_oper	    = MLX5_GET(ptys_reg, out, data_rate_oper);
1043 
1044 	mlx5_query_port_pause(mdev, &rx_pause, &tx_pause);
1045 
1046 	ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
1047 	ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
1048 
1049 	get_supported(mdev, eth_proto_cap, link_ksettings);
1050 	get_advertising(eth_proto_admin, tx_pause, rx_pause, link_ksettings,
1051 			admin_ext);
1052 	get_speed_duplex(priv->netdev, eth_proto_oper, !admin_ext,
1053 			 data_rate_oper, link_ksettings);
1054 
1055 	eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap;
1056 	connector_type = connector_type < MLX5E_CONNECTOR_TYPE_NUMBER ?
1057 			 connector_type : MLX5E_PORT_UNKNOWN;
1058 	link_ksettings->base.port = get_connector_port(mdev, eth_proto_oper, connector_type);
1059 	ptys2ethtool_supported_advertised_port(mdev, link_ksettings, eth_proto_admin,
1060 					       connector_type);
1061 	get_lp_advertising(mdev, eth_proto_lp, link_ksettings);
1062 
1063 	if (an_status == MLX5_AN_COMPLETE)
1064 		ethtool_link_ksettings_add_link_mode(link_ksettings,
1065 						     lp_advertising, Autoneg);
1066 
1067 	link_ksettings->base.autoneg = an_disable_admin ? AUTONEG_DISABLE :
1068 							  AUTONEG_ENABLE;
1069 	ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
1070 					     Autoneg);
1071 
1072 	err = get_fec_supported_advertised(mdev, link_ksettings);
1073 	if (err) {
1074 		netdev_dbg(priv->netdev, "%s: FEC caps query failed: %d\n",
1075 			   __func__, err);
1076 		err = 0; /* don't fail caps query because of FEC error */
1077 	}
1078 
1079 	if (!an_disable_admin)
1080 		ethtool_link_ksettings_add_link_mode(link_ksettings,
1081 						     advertising, Autoneg);
1082 
1083 err_query_regs:
1084 	return err;
1085 }
1086 
mlx5e_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * link_ksettings)1087 static int mlx5e_get_link_ksettings(struct net_device *netdev,
1088 				    struct ethtool_link_ksettings *link_ksettings)
1089 {
1090 	struct mlx5e_priv *priv = netdev_priv(netdev);
1091 
1092 	return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
1093 }
1094 
mlx5e_speed_validate(struct net_device * netdev,bool ext,const unsigned long link_modes,u8 autoneg)1095 static int mlx5e_speed_validate(struct net_device *netdev, bool ext,
1096 				const unsigned long link_modes, u8 autoneg)
1097 {
1098 	/* Extended link-mode has no speed limitations. */
1099 	if (ext)
1100 		return 0;
1101 
1102 	if ((link_modes & MLX5E_PROT_MASK(MLX5E_56GBASE_R4)) &&
1103 	    autoneg != AUTONEG_ENABLE) {
1104 		netdev_err(netdev, "%s: 56G link speed requires autoneg enabled\n",
1105 			   __func__);
1106 		return -EINVAL;
1107 	}
1108 	return 0;
1109 }
1110 
mlx5e_ethtool2ptys_adver_link(const unsigned long * link_modes)1111 static u32 mlx5e_ethtool2ptys_adver_link(const unsigned long *link_modes)
1112 {
1113 	u32 i, ptys_modes = 0;
1114 
1115 	for (i = 0; i < MLX5E_LINK_MODES_NUMBER; ++i) {
1116 		if (*ptys2legacy_ethtool_table[i].advertised == 0)
1117 			continue;
1118 		if (bitmap_intersects(ptys2legacy_ethtool_table[i].advertised,
1119 				      link_modes,
1120 				      __ETHTOOL_LINK_MODE_MASK_NBITS))
1121 			ptys_modes |= MLX5E_PROT_MASK(i);
1122 	}
1123 
1124 	return ptys_modes;
1125 }
1126 
mlx5e_ethtool2ptys_ext_adver_link(const unsigned long * link_modes)1127 static u32 mlx5e_ethtool2ptys_ext_adver_link(const unsigned long *link_modes)
1128 {
1129 	u32 i, ptys_modes = 0;
1130 	unsigned long modes[2];
1131 
1132 	for (i = 0; i < MLX5E_EXT_LINK_MODES_NUMBER; ++i) {
1133 		if (ptys2ext_ethtool_table[i].advertised[0] == 0 &&
1134 		    ptys2ext_ethtool_table[i].advertised[1] == 0)
1135 			continue;
1136 		memset(modes, 0, sizeof(modes));
1137 		bitmap_and(modes, ptys2ext_ethtool_table[i].advertised,
1138 			   link_modes, __ETHTOOL_LINK_MODE_MASK_NBITS);
1139 
1140 		if (modes[0] == ptys2ext_ethtool_table[i].advertised[0] &&
1141 		    modes[1] == ptys2ext_ethtool_table[i].advertised[1])
1142 			ptys_modes |= MLX5E_PROT_MASK(i);
1143 	}
1144 	return ptys_modes;
1145 }
1146 
ext_link_mode_requested(const unsigned long * adver)1147 static bool ext_link_mode_requested(const unsigned long *adver)
1148 {
1149 #define MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT ETHTOOL_LINK_MODE_50000baseKR_Full_BIT
1150 	int size = __ETHTOOL_LINK_MODE_MASK_NBITS - MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT;
1151 	__ETHTOOL_DECLARE_LINK_MODE_MASK(modes) = {0,};
1152 
1153 	bitmap_set(modes, MLX5E_MIN_PTYS_EXT_LINK_MODE_BIT, size);
1154 	return bitmap_intersects(modes, adver, __ETHTOOL_LINK_MODE_MASK_NBITS);
1155 }
1156 
ext_requested(u8 autoneg,const unsigned long * adver,bool ext_supported)1157 static bool ext_requested(u8 autoneg, const unsigned long *adver, bool ext_supported)
1158 {
1159 	bool ext_link_mode = ext_link_mode_requested(adver);
1160 
1161 	return  autoneg == AUTONEG_ENABLE ? ext_link_mode : ext_supported;
1162 }
1163 
mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv * priv,const struct ethtool_link_ksettings * link_ksettings)1164 int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
1165 				     const struct ethtool_link_ksettings *link_ksettings)
1166 {
1167 	struct mlx5_core_dev *mdev = priv->mdev;
1168 	struct mlx5e_port_eth_proto eproto;
1169 	const unsigned long *adver;
1170 	bool an_changes = false;
1171 	u8 an_disable_admin;
1172 	bool ext_supported;
1173 	u8 an_disable_cap;
1174 	bool an_disable;
1175 	u32 link_modes;
1176 	u8 an_status;
1177 	u8 autoneg;
1178 	u32 speed;
1179 	bool ext;
1180 	int err;
1181 
1182 	u32 (*ethtool2ptys_adver_func)(const unsigned long *adver);
1183 
1184 	adver = link_ksettings->link_modes.advertising;
1185 	autoneg = link_ksettings->base.autoneg;
1186 	speed = link_ksettings->base.speed;
1187 
1188 	ext_supported = mlx5e_ptys_ext_supported(mdev);
1189 	ext = ext_requested(autoneg, adver, ext_supported);
1190 	if (!ext_supported && ext)
1191 		return -EOPNOTSUPP;
1192 
1193 	ethtool2ptys_adver_func = ext ? mlx5e_ethtool2ptys_ext_adver_link :
1194 				  mlx5e_ethtool2ptys_adver_link;
1195 	err = mlx5_port_query_eth_proto(mdev, 1, ext, &eproto);
1196 	if (err) {
1197 		netdev_err(priv->netdev, "%s: query port eth proto failed: %d\n",
1198 			   __func__, err);
1199 		goto out;
1200 	}
1201 	link_modes = autoneg == AUTONEG_ENABLE ? ethtool2ptys_adver_func(adver) :
1202 		mlx5e_port_speed2linkmodes(mdev, speed, !ext);
1203 
1204 	err = mlx5e_speed_validate(priv->netdev, ext, link_modes, autoneg);
1205 	if (err)
1206 		goto out;
1207 
1208 	link_modes = link_modes & eproto.cap;
1209 	if (!link_modes) {
1210 		netdev_err(priv->netdev, "%s: Not supported link mode(s) requested",
1211 			   __func__);
1212 		err = -EINVAL;
1213 		goto out;
1214 	}
1215 
1216 	mlx5_port_query_eth_autoneg(mdev, &an_status, &an_disable_cap,
1217 				    &an_disable_admin);
1218 
1219 	an_disable = autoneg == AUTONEG_DISABLE;
1220 	an_changes = ((!an_disable && an_disable_admin) ||
1221 		      (an_disable && !an_disable_admin));
1222 
1223 	if (!an_changes && link_modes == eproto.admin)
1224 		goto out;
1225 
1226 	mlx5_port_set_eth_ptys(mdev, an_disable, link_modes, ext);
1227 	mlx5_toggle_port_link(mdev);
1228 
1229 out:
1230 	return err;
1231 }
1232 
mlx5e_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * link_ksettings)1233 static int mlx5e_set_link_ksettings(struct net_device *netdev,
1234 				    const struct ethtool_link_ksettings *link_ksettings)
1235 {
1236 	struct mlx5e_priv *priv = netdev_priv(netdev);
1237 
1238 	return mlx5e_ethtool_set_link_ksettings(priv, link_ksettings);
1239 }
1240 
mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv * priv)1241 u32 mlx5e_ethtool_get_rxfh_key_size(struct mlx5e_priv *priv)
1242 {
1243 	return sizeof_field(struct mlx5e_rss_params_hash, toeplitz_hash_key);
1244 }
1245 
mlx5e_get_rxfh_key_size(struct net_device * netdev)1246 static u32 mlx5e_get_rxfh_key_size(struct net_device *netdev)
1247 {
1248 	struct mlx5e_priv *priv = netdev_priv(netdev);
1249 
1250 	return mlx5e_ethtool_get_rxfh_key_size(priv);
1251 }
1252 
mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv * priv)1253 u32 mlx5e_ethtool_get_rxfh_indir_size(struct mlx5e_priv *priv)
1254 {
1255 	return MLX5E_INDIR_RQT_SIZE;
1256 }
1257 
mlx5e_get_rxfh_indir_size(struct net_device * netdev)1258 static u32 mlx5e_get_rxfh_indir_size(struct net_device *netdev)
1259 {
1260 	struct mlx5e_priv *priv = netdev_priv(netdev);
1261 
1262 	return mlx5e_ethtool_get_rxfh_indir_size(priv);
1263 }
1264 
mlx5e_get_rxfh_context(struct net_device * dev,u32 * indir,u8 * key,u8 * hfunc,u32 rss_context)1265 static int mlx5e_get_rxfh_context(struct net_device *dev, u32 *indir,
1266 				  u8 *key, u8 *hfunc, u32 rss_context)
1267 {
1268 	struct mlx5e_priv *priv = netdev_priv(dev);
1269 	int err;
1270 
1271 	mutex_lock(&priv->state_lock);
1272 	err = mlx5e_rx_res_rss_get_rxfh(priv->rx_res, rss_context, indir, key, hfunc);
1273 	mutex_unlock(&priv->state_lock);
1274 	return err;
1275 }
1276 
mlx5e_set_rxfh_context(struct net_device * dev,const u32 * indir,const u8 * key,const u8 hfunc,u32 * rss_context,bool delete)1277 static int mlx5e_set_rxfh_context(struct net_device *dev, const u32 *indir,
1278 				  const u8 *key, const u8 hfunc,
1279 				  u32 *rss_context, bool delete)
1280 {
1281 	struct mlx5e_priv *priv = netdev_priv(dev);
1282 	int err;
1283 
1284 	mutex_lock(&priv->state_lock);
1285 	if (delete) {
1286 		err = mlx5e_rx_res_rss_destroy(priv->rx_res, *rss_context);
1287 		goto unlock;
1288 	}
1289 
1290 	if (*rss_context == ETH_RXFH_CONTEXT_ALLOC) {
1291 		unsigned int count = priv->channels.params.num_channels;
1292 
1293 		err = mlx5e_rx_res_rss_init(priv->rx_res, rss_context, count);
1294 		if (err)
1295 			goto unlock;
1296 	}
1297 
1298 	err = mlx5e_rx_res_rss_set_rxfh(priv->rx_res, *rss_context, indir, key,
1299 					hfunc == ETH_RSS_HASH_NO_CHANGE ? NULL : &hfunc);
1300 
1301 unlock:
1302 	mutex_unlock(&priv->state_lock);
1303 	return err;
1304 }
1305 
mlx5e_get_rxfh(struct net_device * netdev,u32 * indir,u8 * key,u8 * hfunc)1306 int mlx5e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
1307 		   u8 *hfunc)
1308 {
1309 	return mlx5e_get_rxfh_context(netdev, indir, key, hfunc, 0);
1310 }
1311 
mlx5e_set_rxfh(struct net_device * dev,const u32 * indir,const u8 * key,const u8 hfunc)1312 int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
1313 		   const u8 *key, const u8 hfunc)
1314 {
1315 	struct mlx5e_priv *priv = netdev_priv(dev);
1316 	int err;
1317 
1318 	mutex_lock(&priv->state_lock);
1319 	err = mlx5e_rx_res_rss_set_rxfh(priv->rx_res, 0, indir, key,
1320 					hfunc == ETH_RSS_HASH_NO_CHANGE ? NULL : &hfunc);
1321 	mutex_unlock(&priv->state_lock);
1322 	return err;
1323 }
1324 
1325 #define MLX5E_PFC_PREVEN_AUTO_TOUT_MSEC		100
1326 #define MLX5E_PFC_PREVEN_TOUT_MAX_MSEC		8000
1327 #define MLX5E_PFC_PREVEN_MINOR_PRECENT		85
1328 #define MLX5E_PFC_PREVEN_TOUT_MIN_MSEC		80
1329 #define MLX5E_DEVICE_STALL_MINOR_WATERMARK(critical_tout) \
1330 	max_t(u16, MLX5E_PFC_PREVEN_TOUT_MIN_MSEC, \
1331 	      (critical_tout * MLX5E_PFC_PREVEN_MINOR_PRECENT) / 100)
1332 
mlx5e_get_pfc_prevention_tout(struct net_device * netdev,u16 * pfc_prevention_tout)1333 static int mlx5e_get_pfc_prevention_tout(struct net_device *netdev,
1334 					 u16 *pfc_prevention_tout)
1335 {
1336 	struct mlx5e_priv *priv    = netdev_priv(netdev);
1337 	struct mlx5_core_dev *mdev = priv->mdev;
1338 
1339 	if (!MLX5_CAP_PCAM_FEATURE((priv)->mdev, pfcc_mask) ||
1340 	    !MLX5_CAP_DEBUG((priv)->mdev, stall_detect))
1341 		return -EOPNOTSUPP;
1342 
1343 	return mlx5_query_port_stall_watermark(mdev, pfc_prevention_tout, NULL);
1344 }
1345 
mlx5e_set_pfc_prevention_tout(struct net_device * netdev,u16 pfc_preven)1346 static int mlx5e_set_pfc_prevention_tout(struct net_device *netdev,
1347 					 u16 pfc_preven)
1348 {
1349 	struct mlx5e_priv *priv = netdev_priv(netdev);
1350 	struct mlx5_core_dev *mdev = priv->mdev;
1351 	u16 critical_tout;
1352 	u16 minor;
1353 
1354 	if (!MLX5_CAP_PCAM_FEATURE((priv)->mdev, pfcc_mask) ||
1355 	    !MLX5_CAP_DEBUG((priv)->mdev, stall_detect))
1356 		return -EOPNOTSUPP;
1357 
1358 	critical_tout = (pfc_preven == PFC_STORM_PREVENTION_AUTO) ?
1359 			MLX5E_PFC_PREVEN_AUTO_TOUT_MSEC :
1360 			pfc_preven;
1361 
1362 	if (critical_tout != PFC_STORM_PREVENTION_DISABLE &&
1363 	    (critical_tout > MLX5E_PFC_PREVEN_TOUT_MAX_MSEC ||
1364 	     critical_tout < MLX5E_PFC_PREVEN_TOUT_MIN_MSEC)) {
1365 		netdev_info(netdev, "%s: pfc prevention tout not in range (%d-%d)\n",
1366 			    __func__, MLX5E_PFC_PREVEN_TOUT_MIN_MSEC,
1367 			    MLX5E_PFC_PREVEN_TOUT_MAX_MSEC);
1368 		return -EINVAL;
1369 	}
1370 
1371 	minor = MLX5E_DEVICE_STALL_MINOR_WATERMARK(critical_tout);
1372 	return mlx5_set_port_stall_watermark(mdev, critical_tout,
1373 					     minor);
1374 }
1375 
mlx5e_get_tunable(struct net_device * dev,const struct ethtool_tunable * tuna,void * data)1376 static int mlx5e_get_tunable(struct net_device *dev,
1377 			     const struct ethtool_tunable *tuna,
1378 			     void *data)
1379 {
1380 	int err;
1381 
1382 	switch (tuna->id) {
1383 	case ETHTOOL_PFC_PREVENTION_TOUT:
1384 		err = mlx5e_get_pfc_prevention_tout(dev, data);
1385 		break;
1386 	default:
1387 		err = -EINVAL;
1388 		break;
1389 	}
1390 
1391 	return err;
1392 }
1393 
mlx5e_set_tunable(struct net_device * dev,const struct ethtool_tunable * tuna,const void * data)1394 static int mlx5e_set_tunable(struct net_device *dev,
1395 			     const struct ethtool_tunable *tuna,
1396 			     const void *data)
1397 {
1398 	struct mlx5e_priv *priv = netdev_priv(dev);
1399 	int err;
1400 
1401 	mutex_lock(&priv->state_lock);
1402 
1403 	switch (tuna->id) {
1404 	case ETHTOOL_PFC_PREVENTION_TOUT:
1405 		err = mlx5e_set_pfc_prevention_tout(dev, *(u16 *)data);
1406 		break;
1407 	default:
1408 		err = -EINVAL;
1409 		break;
1410 	}
1411 
1412 	mutex_unlock(&priv->state_lock);
1413 	return err;
1414 }
1415 
mlx5e_get_pause_stats(struct net_device * netdev,struct ethtool_pause_stats * pause_stats)1416 static void mlx5e_get_pause_stats(struct net_device *netdev,
1417 				  struct ethtool_pause_stats *pause_stats)
1418 {
1419 	struct mlx5e_priv *priv = netdev_priv(netdev);
1420 
1421 	mlx5e_stats_pause_get(priv, pause_stats);
1422 }
1423 
mlx5e_ethtool_get_pauseparam(struct mlx5e_priv * priv,struct ethtool_pauseparam * pauseparam)1424 void mlx5e_ethtool_get_pauseparam(struct mlx5e_priv *priv,
1425 				  struct ethtool_pauseparam *pauseparam)
1426 {
1427 	struct mlx5_core_dev *mdev = priv->mdev;
1428 	int err;
1429 
1430 	err = mlx5_query_port_pause(mdev, &pauseparam->rx_pause,
1431 				    &pauseparam->tx_pause);
1432 	if (err) {
1433 		netdev_err(priv->netdev, "%s: mlx5_query_port_pause failed:0x%x\n",
1434 			   __func__, err);
1435 	}
1436 }
1437 
mlx5e_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pauseparam)1438 static void mlx5e_get_pauseparam(struct net_device *netdev,
1439 				 struct ethtool_pauseparam *pauseparam)
1440 {
1441 	struct mlx5e_priv *priv = netdev_priv(netdev);
1442 
1443 	mlx5e_ethtool_get_pauseparam(priv, pauseparam);
1444 }
1445 
mlx5e_ethtool_set_pauseparam(struct mlx5e_priv * priv,struct ethtool_pauseparam * pauseparam)1446 int mlx5e_ethtool_set_pauseparam(struct mlx5e_priv *priv,
1447 				 struct ethtool_pauseparam *pauseparam)
1448 {
1449 	struct mlx5_core_dev *mdev = priv->mdev;
1450 	int err;
1451 
1452 	if (!MLX5_CAP_GEN(mdev, vport_group_manager))
1453 		return -EOPNOTSUPP;
1454 
1455 	if (pauseparam->autoneg)
1456 		return -EINVAL;
1457 
1458 	err = mlx5_set_port_pause(mdev,
1459 				  pauseparam->rx_pause ? 1 : 0,
1460 				  pauseparam->tx_pause ? 1 : 0);
1461 	if (err) {
1462 		netdev_err(priv->netdev, "%s: mlx5_set_port_pause failed:0x%x\n",
1463 			   __func__, err);
1464 	}
1465 
1466 	return err;
1467 }
1468 
mlx5e_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pauseparam)1469 static int mlx5e_set_pauseparam(struct net_device *netdev,
1470 				struct ethtool_pauseparam *pauseparam)
1471 {
1472 	struct mlx5e_priv *priv = netdev_priv(netdev);
1473 
1474 	return mlx5e_ethtool_set_pauseparam(priv, pauseparam);
1475 }
1476 
mlx5e_ethtool_get_ts_info(struct mlx5e_priv * priv,struct ethtool_ts_info * info)1477 int mlx5e_ethtool_get_ts_info(struct mlx5e_priv *priv,
1478 			      struct ethtool_ts_info *info)
1479 {
1480 	struct mlx5_core_dev *mdev = priv->mdev;
1481 
1482 	info->phc_index = mlx5_clock_get_ptp_index(mdev);
1483 
1484 	if (!MLX5_CAP_GEN(priv->mdev, device_frequency_khz) ||
1485 	    info->phc_index == -1)
1486 		return 0;
1487 
1488 	info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
1489 				SOF_TIMESTAMPING_RX_HARDWARE |
1490 				SOF_TIMESTAMPING_RAW_HARDWARE;
1491 
1492 	info->tx_types = BIT(HWTSTAMP_TX_OFF) |
1493 			 BIT(HWTSTAMP_TX_ON);
1494 
1495 	info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1496 			   BIT(HWTSTAMP_FILTER_ALL);
1497 
1498 	return 0;
1499 }
1500 
mlx5e_get_ts_info(struct net_device * dev,struct ethtool_ts_info * info)1501 static int mlx5e_get_ts_info(struct net_device *dev,
1502 			     struct ethtool_ts_info *info)
1503 {
1504 	struct mlx5e_priv *priv = netdev_priv(dev);
1505 
1506 	return mlx5e_ethtool_get_ts_info(priv, info);
1507 }
1508 
mlx5e_get_wol_supported(struct mlx5_core_dev * mdev)1509 static __u32 mlx5e_get_wol_supported(struct mlx5_core_dev *mdev)
1510 {
1511 	__u32 ret = 0;
1512 
1513 	if (MLX5_CAP_GEN(mdev, wol_g))
1514 		ret |= WAKE_MAGIC;
1515 
1516 	if (MLX5_CAP_GEN(mdev, wol_s))
1517 		ret |= WAKE_MAGICSECURE;
1518 
1519 	if (MLX5_CAP_GEN(mdev, wol_a))
1520 		ret |= WAKE_ARP;
1521 
1522 	if (MLX5_CAP_GEN(mdev, wol_b))
1523 		ret |= WAKE_BCAST;
1524 
1525 	if (MLX5_CAP_GEN(mdev, wol_m))
1526 		ret |= WAKE_MCAST;
1527 
1528 	if (MLX5_CAP_GEN(mdev, wol_u))
1529 		ret |= WAKE_UCAST;
1530 
1531 	if (MLX5_CAP_GEN(mdev, wol_p))
1532 		ret |= WAKE_PHY;
1533 
1534 	return ret;
1535 }
1536 
mlx5e_reformat_wol_mode_mlx5_to_linux(u8 mode)1537 static __u32 mlx5e_reformat_wol_mode_mlx5_to_linux(u8 mode)
1538 {
1539 	__u32 ret = 0;
1540 
1541 	if (mode & MLX5_WOL_MAGIC)
1542 		ret |= WAKE_MAGIC;
1543 
1544 	if (mode & MLX5_WOL_SECURED_MAGIC)
1545 		ret |= WAKE_MAGICSECURE;
1546 
1547 	if (mode & MLX5_WOL_ARP)
1548 		ret |= WAKE_ARP;
1549 
1550 	if (mode & MLX5_WOL_BROADCAST)
1551 		ret |= WAKE_BCAST;
1552 
1553 	if (mode & MLX5_WOL_MULTICAST)
1554 		ret |= WAKE_MCAST;
1555 
1556 	if (mode & MLX5_WOL_UNICAST)
1557 		ret |= WAKE_UCAST;
1558 
1559 	if (mode & MLX5_WOL_PHY_ACTIVITY)
1560 		ret |= WAKE_PHY;
1561 
1562 	return ret;
1563 }
1564 
mlx5e_reformat_wol_mode_linux_to_mlx5(__u32 mode)1565 static u8 mlx5e_reformat_wol_mode_linux_to_mlx5(__u32 mode)
1566 {
1567 	u8 ret = 0;
1568 
1569 	if (mode & WAKE_MAGIC)
1570 		ret |= MLX5_WOL_MAGIC;
1571 
1572 	if (mode & WAKE_MAGICSECURE)
1573 		ret |= MLX5_WOL_SECURED_MAGIC;
1574 
1575 	if (mode & WAKE_ARP)
1576 		ret |= MLX5_WOL_ARP;
1577 
1578 	if (mode & WAKE_BCAST)
1579 		ret |= MLX5_WOL_BROADCAST;
1580 
1581 	if (mode & WAKE_MCAST)
1582 		ret |= MLX5_WOL_MULTICAST;
1583 
1584 	if (mode & WAKE_UCAST)
1585 		ret |= MLX5_WOL_UNICAST;
1586 
1587 	if (mode & WAKE_PHY)
1588 		ret |= MLX5_WOL_PHY_ACTIVITY;
1589 
1590 	return ret;
1591 }
1592 
mlx5e_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)1593 static void mlx5e_get_wol(struct net_device *netdev,
1594 			  struct ethtool_wolinfo *wol)
1595 {
1596 	struct mlx5e_priv *priv = netdev_priv(netdev);
1597 	struct mlx5_core_dev *mdev = priv->mdev;
1598 	u8 mlx5_wol_mode;
1599 	int err;
1600 
1601 	memset(wol, 0, sizeof(*wol));
1602 
1603 	wol->supported = mlx5e_get_wol_supported(mdev);
1604 	if (!wol->supported)
1605 		return;
1606 
1607 	err = mlx5_query_port_wol(mdev, &mlx5_wol_mode);
1608 	if (err)
1609 		return;
1610 
1611 	wol->wolopts = mlx5e_reformat_wol_mode_mlx5_to_linux(mlx5_wol_mode);
1612 }
1613 
mlx5e_set_wol(struct net_device * netdev,struct ethtool_wolinfo * wol)1614 static int mlx5e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1615 {
1616 	struct mlx5e_priv *priv = netdev_priv(netdev);
1617 	struct mlx5_core_dev *mdev = priv->mdev;
1618 	__u32 wol_supported = mlx5e_get_wol_supported(mdev);
1619 	u32 mlx5_wol_mode;
1620 
1621 	if (!wol_supported)
1622 		return -EOPNOTSUPP;
1623 
1624 	if (wol->wolopts & ~wol_supported)
1625 		return -EINVAL;
1626 
1627 	mlx5_wol_mode = mlx5e_reformat_wol_mode_linux_to_mlx5(wol->wolopts);
1628 
1629 	return mlx5_set_port_wol(mdev, mlx5_wol_mode);
1630 }
1631 
mlx5e_get_fec_stats(struct net_device * netdev,struct ethtool_fec_stats * fec_stats)1632 static void mlx5e_get_fec_stats(struct net_device *netdev,
1633 				struct ethtool_fec_stats *fec_stats)
1634 {
1635 	struct mlx5e_priv *priv = netdev_priv(netdev);
1636 
1637 	mlx5e_stats_fec_get(priv, fec_stats);
1638 }
1639 
mlx5e_get_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1640 static int mlx5e_get_fecparam(struct net_device *netdev,
1641 			      struct ethtool_fecparam *fecparam)
1642 {
1643 	struct mlx5e_priv *priv = netdev_priv(netdev);
1644 	struct mlx5_core_dev *mdev = priv->mdev;
1645 	u16 fec_configured;
1646 	u32 fec_active;
1647 	int err;
1648 
1649 	err = mlx5e_get_fec_mode(mdev, &fec_active, &fec_configured);
1650 
1651 	if (err)
1652 		return err;
1653 
1654 	fecparam->active_fec = pplm2ethtool_fec((unsigned long)fec_active,
1655 						sizeof(unsigned long) * BITS_PER_BYTE);
1656 
1657 	if (!fecparam->active_fec)
1658 		return -EOPNOTSUPP;
1659 
1660 	fecparam->fec = pplm2ethtool_fec((unsigned long)fec_configured,
1661 					 sizeof(unsigned long) * BITS_PER_BYTE);
1662 
1663 	return 0;
1664 }
1665 
mlx5e_set_fecparam(struct net_device * netdev,struct ethtool_fecparam * fecparam)1666 static int mlx5e_set_fecparam(struct net_device *netdev,
1667 			      struct ethtool_fecparam *fecparam)
1668 {
1669 	struct mlx5e_priv *priv = netdev_priv(netdev);
1670 	struct mlx5_core_dev *mdev = priv->mdev;
1671 	unsigned long fec_bitmap;
1672 	u16 fec_policy = 0;
1673 	int mode;
1674 	int err;
1675 
1676 	bitmap_from_arr32(&fec_bitmap, &fecparam->fec, sizeof(fecparam->fec) * BITS_PER_BYTE);
1677 	if (bitmap_weight(&fec_bitmap, ETHTOOL_FEC_LLRS_BIT + 1) > 1)
1678 		return -EOPNOTSUPP;
1679 
1680 	for (mode = 0; mode < ARRAY_SIZE(pplm_fec_2_ethtool); mode++) {
1681 		if (!(pplm_fec_2_ethtool[mode] & fecparam->fec))
1682 			continue;
1683 		fec_policy |= (1 << mode);
1684 		break;
1685 	}
1686 
1687 	err = mlx5e_set_fec_mode(mdev, fec_policy);
1688 
1689 	if (err)
1690 		return err;
1691 
1692 	mlx5_toggle_port_link(mdev);
1693 
1694 	return 0;
1695 }
1696 
mlx5e_get_msglevel(struct net_device * dev)1697 static u32 mlx5e_get_msglevel(struct net_device *dev)
1698 {
1699 	return ((struct mlx5e_priv *)netdev_priv(dev))->msglevel;
1700 }
1701 
mlx5e_set_msglevel(struct net_device * dev,u32 val)1702 static void mlx5e_set_msglevel(struct net_device *dev, u32 val)
1703 {
1704 	((struct mlx5e_priv *)netdev_priv(dev))->msglevel = val;
1705 }
1706 
mlx5e_set_phys_id(struct net_device * dev,enum ethtool_phys_id_state state)1707 static int mlx5e_set_phys_id(struct net_device *dev,
1708 			     enum ethtool_phys_id_state state)
1709 {
1710 	struct mlx5e_priv *priv = netdev_priv(dev);
1711 	struct mlx5_core_dev *mdev = priv->mdev;
1712 	u16 beacon_duration;
1713 
1714 	if (!MLX5_CAP_GEN(mdev, beacon_led))
1715 		return -EOPNOTSUPP;
1716 
1717 	switch (state) {
1718 	case ETHTOOL_ID_ACTIVE:
1719 		beacon_duration = MLX5_BEACON_DURATION_INF;
1720 		break;
1721 	case ETHTOOL_ID_INACTIVE:
1722 		beacon_duration = MLX5_BEACON_DURATION_OFF;
1723 		break;
1724 	default:
1725 		return -EOPNOTSUPP;
1726 	}
1727 
1728 	return mlx5_set_port_beacon(mdev, beacon_duration);
1729 }
1730 
mlx5e_get_module_info(struct net_device * netdev,struct ethtool_modinfo * modinfo)1731 static int mlx5e_get_module_info(struct net_device *netdev,
1732 				 struct ethtool_modinfo *modinfo)
1733 {
1734 	struct mlx5e_priv *priv = netdev_priv(netdev);
1735 	struct mlx5_core_dev *dev = priv->mdev;
1736 	int size_read = 0;
1737 	u8 data[4] = {0};
1738 
1739 	size_read = mlx5_query_module_eeprom(dev, 0, 2, data);
1740 	if (size_read < 2)
1741 		return -EIO;
1742 
1743 	/* data[0] = identifier byte */
1744 	switch (data[0]) {
1745 	case MLX5_MODULE_ID_QSFP:
1746 		modinfo->type       = ETH_MODULE_SFF_8436;
1747 		modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
1748 		break;
1749 	case MLX5_MODULE_ID_QSFP_PLUS:
1750 	case MLX5_MODULE_ID_QSFP28:
1751 		/* data[1] = revision id */
1752 		if (data[0] == MLX5_MODULE_ID_QSFP28 || data[1] >= 0x3) {
1753 			modinfo->type       = ETH_MODULE_SFF_8636;
1754 			modinfo->eeprom_len = ETH_MODULE_SFF_8636_MAX_LEN;
1755 		} else {
1756 			modinfo->type       = ETH_MODULE_SFF_8436;
1757 			modinfo->eeprom_len = ETH_MODULE_SFF_8436_MAX_LEN;
1758 		}
1759 		break;
1760 	case MLX5_MODULE_ID_SFP:
1761 		modinfo->type       = ETH_MODULE_SFF_8472;
1762 		modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1763 		break;
1764 	default:
1765 		netdev_err(priv->netdev, "%s: cable type not recognized:0x%x\n",
1766 			   __func__, data[0]);
1767 		return -EINVAL;
1768 	}
1769 
1770 	return 0;
1771 }
1772 
mlx5e_get_module_eeprom(struct net_device * netdev,struct ethtool_eeprom * ee,u8 * data)1773 static int mlx5e_get_module_eeprom(struct net_device *netdev,
1774 				   struct ethtool_eeprom *ee,
1775 				   u8 *data)
1776 {
1777 	struct mlx5e_priv *priv = netdev_priv(netdev);
1778 	struct mlx5_core_dev *mdev = priv->mdev;
1779 	int offset = ee->offset;
1780 	int size_read;
1781 	int i = 0;
1782 
1783 	if (!ee->len)
1784 		return -EINVAL;
1785 
1786 	memset(data, 0, ee->len);
1787 
1788 	while (i < ee->len) {
1789 		size_read = mlx5_query_module_eeprom(mdev, offset, ee->len - i,
1790 						     data + i);
1791 
1792 		if (!size_read)
1793 			/* Done reading */
1794 			return 0;
1795 
1796 		if (size_read < 0) {
1797 			netdev_err(priv->netdev, "%s: mlx5_query_eeprom failed:0x%x\n",
1798 				   __func__, size_read);
1799 			return size_read;
1800 		}
1801 
1802 		i += size_read;
1803 		offset += size_read;
1804 	}
1805 
1806 	return 0;
1807 }
1808 
mlx5e_get_module_eeprom_by_page(struct net_device * netdev,const struct ethtool_module_eeprom * page_data,struct netlink_ext_ack * extack)1809 static int mlx5e_get_module_eeprom_by_page(struct net_device *netdev,
1810 					   const struct ethtool_module_eeprom *page_data,
1811 					   struct netlink_ext_ack *extack)
1812 {
1813 	struct mlx5e_priv *priv = netdev_priv(netdev);
1814 	struct mlx5_module_eeprom_query_params query;
1815 	struct mlx5_core_dev *mdev = priv->mdev;
1816 	u8 *data = page_data->data;
1817 	int size_read;
1818 	int i = 0;
1819 
1820 	if (!page_data->length)
1821 		return -EINVAL;
1822 
1823 	memset(data, 0, page_data->length);
1824 
1825 	query.offset = page_data->offset;
1826 	query.i2c_address = page_data->i2c_address;
1827 	query.bank = page_data->bank;
1828 	query.page = page_data->page;
1829 	while (i < page_data->length) {
1830 		query.size = page_data->length - i;
1831 		size_read = mlx5_query_module_eeprom_by_page(mdev, &query, data + i);
1832 
1833 		/* Done reading, return how many bytes was read */
1834 		if (!size_read)
1835 			return i;
1836 
1837 		if (size_read == -EINVAL)
1838 			return -EINVAL;
1839 		if (size_read < 0) {
1840 			netdev_err(priv->netdev, "%s: mlx5_query_module_eeprom_by_page failed:0x%x\n",
1841 				   __func__, size_read);
1842 			return i;
1843 		}
1844 
1845 		i += size_read;
1846 		query.offset += size_read;
1847 	}
1848 
1849 	return i;
1850 }
1851 
mlx5e_ethtool_flash_device(struct mlx5e_priv * priv,struct ethtool_flash * flash)1852 int mlx5e_ethtool_flash_device(struct mlx5e_priv *priv,
1853 			       struct ethtool_flash *flash)
1854 {
1855 	struct mlx5_core_dev *mdev = priv->mdev;
1856 	struct net_device *dev = priv->netdev;
1857 	const struct firmware *fw;
1858 	int err;
1859 
1860 	if (flash->region != ETHTOOL_FLASH_ALL_REGIONS)
1861 		return -EOPNOTSUPP;
1862 
1863 	err = request_firmware_direct(&fw, flash->data, &dev->dev);
1864 	if (err)
1865 		return err;
1866 
1867 	dev_hold(dev);
1868 	rtnl_unlock();
1869 
1870 	err = mlx5_firmware_flash(mdev, fw, NULL);
1871 	release_firmware(fw);
1872 
1873 	rtnl_lock();
1874 	dev_put(dev);
1875 	return err;
1876 }
1877 
mlx5e_flash_device(struct net_device * dev,struct ethtool_flash * flash)1878 static int mlx5e_flash_device(struct net_device *dev,
1879 			      struct ethtool_flash *flash)
1880 {
1881 	struct mlx5e_priv *priv = netdev_priv(dev);
1882 
1883 	return mlx5e_ethtool_flash_device(priv, flash);
1884 }
1885 
set_pflag_cqe_based_moder(struct net_device * netdev,bool enable,bool is_rx_cq)1886 static int set_pflag_cqe_based_moder(struct net_device *netdev, bool enable,
1887 				     bool is_rx_cq)
1888 {
1889 	struct mlx5e_priv *priv = netdev_priv(netdev);
1890 	u8 cq_period_mode, current_cq_period_mode;
1891 	struct mlx5e_params new_params;
1892 
1893 	if (enable && !MLX5_CAP_GEN(priv->mdev, cq_period_start_from_cqe))
1894 		return -EOPNOTSUPP;
1895 
1896 	cq_period_mode = cqe_mode_to_period_mode(enable);
1897 
1898 	current_cq_period_mode = is_rx_cq ?
1899 		priv->channels.params.rx_cq_moderation.cq_period_mode :
1900 		priv->channels.params.tx_cq_moderation.cq_period_mode;
1901 
1902 	if (cq_period_mode == current_cq_period_mode)
1903 		return 0;
1904 
1905 	new_params = priv->channels.params;
1906 	if (is_rx_cq)
1907 		mlx5e_set_rx_cq_mode_params(&new_params, cq_period_mode);
1908 	else
1909 		mlx5e_set_tx_cq_mode_params(&new_params, cq_period_mode);
1910 
1911 	return mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
1912 }
1913 
set_pflag_tx_cqe_based_moder(struct net_device * netdev,bool enable)1914 static int set_pflag_tx_cqe_based_moder(struct net_device *netdev, bool enable)
1915 {
1916 	return set_pflag_cqe_based_moder(netdev, enable, false);
1917 }
1918 
set_pflag_rx_cqe_based_moder(struct net_device * netdev,bool enable)1919 static int set_pflag_rx_cqe_based_moder(struct net_device *netdev, bool enable)
1920 {
1921 	return set_pflag_cqe_based_moder(netdev, enable, true);
1922 }
1923 
mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv * priv,bool new_val,bool rx_filter)1924 int mlx5e_modify_rx_cqe_compression_locked(struct mlx5e_priv *priv, bool new_val, bool rx_filter)
1925 {
1926 	bool curr_val = MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_RX_CQE_COMPRESS);
1927 	struct mlx5e_params new_params;
1928 	int err = 0;
1929 
1930 	if (!MLX5_CAP_GEN(priv->mdev, cqe_compression))
1931 		return new_val ? -EOPNOTSUPP : 0;
1932 
1933 	if (curr_val == new_val)
1934 		return 0;
1935 
1936 	if (new_val && !mlx5e_profile_feature_cap(priv->profile, PTP_RX) && rx_filter) {
1937 		netdev_err(priv->netdev,
1938 			   "Profile doesn't support enabling of CQE compression while hardware time-stamping is enabled.\n");
1939 		return -EINVAL;
1940 	}
1941 
1942 	if (priv->channels.params.packet_merge.type == MLX5E_PACKET_MERGE_SHAMPO) {
1943 		netdev_warn(priv->netdev, "Can't set CQE compression with HW-GRO, disable it first.\n");
1944 		return -EINVAL;
1945 	}
1946 
1947 	new_params = priv->channels.params;
1948 	MLX5E_SET_PFLAG(&new_params, MLX5E_PFLAG_RX_CQE_COMPRESS, new_val);
1949 	if (rx_filter)
1950 		new_params.ptp_rx = new_val;
1951 
1952 	if (new_params.ptp_rx == priv->channels.params.ptp_rx)
1953 		err = mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
1954 	else
1955 		err = mlx5e_safe_switch_params(priv, &new_params, mlx5e_ptp_rx_manage_fs_ctx,
1956 					       &new_params.ptp_rx, true);
1957 	if (err)
1958 		return err;
1959 
1960 	mlx5e_dbg(DRV, priv, "MLX5E: RxCqeCmprss was turned %s\n",
1961 		  MLX5E_GET_PFLAG(&priv->channels.params,
1962 				  MLX5E_PFLAG_RX_CQE_COMPRESS) ? "ON" : "OFF");
1963 
1964 	return 0;
1965 }
1966 
set_pflag_rx_cqe_compress(struct net_device * netdev,bool enable)1967 static int set_pflag_rx_cqe_compress(struct net_device *netdev,
1968 				     bool enable)
1969 {
1970 	struct mlx5e_priv *priv = netdev_priv(netdev);
1971 	struct mlx5_core_dev *mdev = priv->mdev;
1972 	bool rx_filter;
1973 	int err;
1974 
1975 	if (!MLX5_CAP_GEN(mdev, cqe_compression))
1976 		return -EOPNOTSUPP;
1977 
1978 	rx_filter = priv->tstamp.rx_filter != HWTSTAMP_FILTER_NONE;
1979 	err = mlx5e_modify_rx_cqe_compression_locked(priv, enable, rx_filter);
1980 	if (err)
1981 		return err;
1982 
1983 	priv->channels.params.rx_cqe_compress_def = enable;
1984 
1985 	return 0;
1986 }
1987 
set_pflag_rx_striding_rq(struct net_device * netdev,bool enable)1988 static int set_pflag_rx_striding_rq(struct net_device *netdev, bool enable)
1989 {
1990 	struct mlx5e_priv *priv = netdev_priv(netdev);
1991 	struct mlx5_core_dev *mdev = priv->mdev;
1992 	struct mlx5e_params new_params;
1993 
1994 	if (enable) {
1995 		/* Checking the regular RQ here; mlx5e_validate_xsk_param called
1996 		 * from mlx5e_open_xsk will check for each XSK queue, and
1997 		 * mlx5e_safe_switch_params will be reverted if any check fails.
1998 		 */
1999 		int err = mlx5e_mpwrq_validate_regular(mdev, &priv->channels.params);
2000 
2001 		if (err)
2002 			return err;
2003 	} else if (priv->channels.params.packet_merge.type != MLX5E_PACKET_MERGE_NONE) {
2004 		netdev_warn(netdev, "Can't set legacy RQ with HW-GRO/LRO, disable them first\n");
2005 		return -EINVAL;
2006 	}
2007 
2008 	new_params = priv->channels.params;
2009 
2010 	MLX5E_SET_PFLAG(&new_params, MLX5E_PFLAG_RX_STRIDING_RQ, enable);
2011 	mlx5e_set_rq_type(mdev, &new_params);
2012 
2013 	return mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
2014 }
2015 
set_pflag_rx_no_csum_complete(struct net_device * netdev,bool enable)2016 static int set_pflag_rx_no_csum_complete(struct net_device *netdev, bool enable)
2017 {
2018 	struct mlx5e_priv *priv = netdev_priv(netdev);
2019 	struct mlx5e_channels *channels = &priv->channels;
2020 	struct mlx5e_channel *c;
2021 	int i;
2022 
2023 	if (!test_bit(MLX5E_STATE_OPENED, &priv->state) ||
2024 	    priv->channels.params.xdp_prog)
2025 		return 0;
2026 
2027 	for (i = 0; i < channels->num; i++) {
2028 		c = channels->c[i];
2029 		if (enable)
2030 			__set_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);
2031 		else
2032 			__clear_bit(MLX5E_RQ_STATE_NO_CSUM_COMPLETE, &c->rq.state);
2033 	}
2034 
2035 	return 0;
2036 }
2037 
set_pflag_tx_mpwqe_common(struct net_device * netdev,u32 flag,bool enable)2038 static int set_pflag_tx_mpwqe_common(struct net_device *netdev, u32 flag, bool enable)
2039 {
2040 	struct mlx5e_priv *priv = netdev_priv(netdev);
2041 	struct mlx5_core_dev *mdev = priv->mdev;
2042 	struct mlx5e_params new_params;
2043 
2044 	if (enable && !mlx5e_tx_mpwqe_supported(mdev))
2045 		return -EOPNOTSUPP;
2046 
2047 	new_params = priv->channels.params;
2048 
2049 	MLX5E_SET_PFLAG(&new_params, flag, enable);
2050 
2051 	return mlx5e_safe_switch_params(priv, &new_params, NULL, NULL, true);
2052 }
2053 
set_pflag_xdp_tx_mpwqe(struct net_device * netdev,bool enable)2054 static int set_pflag_xdp_tx_mpwqe(struct net_device *netdev, bool enable)
2055 {
2056 	return set_pflag_tx_mpwqe_common(netdev, MLX5E_PFLAG_XDP_TX_MPWQE, enable);
2057 }
2058 
set_pflag_skb_tx_mpwqe(struct net_device * netdev,bool enable)2059 static int set_pflag_skb_tx_mpwqe(struct net_device *netdev, bool enable)
2060 {
2061 	return set_pflag_tx_mpwqe_common(netdev, MLX5E_PFLAG_SKB_TX_MPWQE, enable);
2062 }
2063 
set_pflag_tx_port_ts(struct net_device * netdev,bool enable)2064 static int set_pflag_tx_port_ts(struct net_device *netdev, bool enable)
2065 {
2066 	struct mlx5e_priv *priv = netdev_priv(netdev);
2067 	struct mlx5_core_dev *mdev = priv->mdev;
2068 	struct mlx5e_params new_params;
2069 	int err;
2070 
2071 	if (!MLX5_CAP_GEN(mdev, ts_cqe_to_dest_cqn))
2072 		return -EOPNOTSUPP;
2073 
2074 	/* Don't allow changing the PTP state if HTB offload is active, because
2075 	 * the numeration of the QoS SQs will change, while per-queue qdiscs are
2076 	 * attached.
2077 	 */
2078 	if (mlx5e_selq_is_htb_enabled(&priv->selq)) {
2079 		netdev_err(priv->netdev, "%s: HTB offload is active, cannot change the PTP state\n",
2080 			   __func__);
2081 		return -EINVAL;
2082 	}
2083 
2084 	new_params = priv->channels.params;
2085 	/* Don't allow enabling TX-port-TS if MQPRIO mode channel  offload is
2086 	 * active, since it defines explicitly which TC accepts the packet.
2087 	 * This conflicts with TX-port-TS hijacking the PTP traffic to a specific
2088 	 * HW TX-queue.
2089 	 */
2090 	if (enable && new_params.mqprio.mode == TC_MQPRIO_MODE_CHANNEL) {
2091 		netdev_err(priv->netdev,
2092 			   "%s: MQPRIO mode channel offload is active, cannot set the TX-port-TS\n",
2093 			   __func__);
2094 		return -EINVAL;
2095 	}
2096 	MLX5E_SET_PFLAG(&new_params, MLX5E_PFLAG_TX_PORT_TS, enable);
2097 	/* No need to verify SQ stop room as
2098 	 * ptpsq.txqsq.stop_room <= generic_sq->stop_room, and both
2099 	 * has the same log_sq_size.
2100 	 */
2101 
2102 	err = mlx5e_safe_switch_params(priv, &new_params,
2103 				       mlx5e_num_channels_changed_ctx, NULL, true);
2104 	if (!err)
2105 		priv->tx_ptp_opened = true;
2106 
2107 	return err;
2108 }
2109 
2110 static const struct pflag_desc mlx5e_priv_flags[MLX5E_NUM_PFLAGS] = {
2111 	{ "rx_cqe_moder",        set_pflag_rx_cqe_based_moder },
2112 	{ "tx_cqe_moder",        set_pflag_tx_cqe_based_moder },
2113 	{ "rx_cqe_compress",     set_pflag_rx_cqe_compress },
2114 	{ "rx_striding_rq",      set_pflag_rx_striding_rq },
2115 	{ "rx_no_csum_complete", set_pflag_rx_no_csum_complete },
2116 	{ "xdp_tx_mpwqe",        set_pflag_xdp_tx_mpwqe },
2117 	{ "skb_tx_mpwqe",        set_pflag_skb_tx_mpwqe },
2118 	{ "tx_port_ts",          set_pflag_tx_port_ts },
2119 };
2120 
mlx5e_handle_pflag(struct net_device * netdev,u32 wanted_flags,enum mlx5e_priv_flag flag)2121 static int mlx5e_handle_pflag(struct net_device *netdev,
2122 			      u32 wanted_flags,
2123 			      enum mlx5e_priv_flag flag)
2124 {
2125 	struct mlx5e_priv *priv = netdev_priv(netdev);
2126 	bool enable = !!(wanted_flags & BIT(flag));
2127 	u32 changes = wanted_flags ^ priv->channels.params.pflags;
2128 	int err;
2129 
2130 	if (!(changes & BIT(flag)))
2131 		return 0;
2132 
2133 	err = mlx5e_priv_flags[flag].handler(netdev, enable);
2134 	if (err) {
2135 		netdev_err(netdev, "%s private flag '%s' failed err %d\n",
2136 			   enable ? "Enable" : "Disable", mlx5e_priv_flags[flag].name, err);
2137 		return err;
2138 	}
2139 
2140 	MLX5E_SET_PFLAG(&priv->channels.params, flag, enable);
2141 	return 0;
2142 }
2143 
mlx5e_set_priv_flags(struct net_device * netdev,u32 pflags)2144 static int mlx5e_set_priv_flags(struct net_device *netdev, u32 pflags)
2145 {
2146 	struct mlx5e_priv *priv = netdev_priv(netdev);
2147 	enum mlx5e_priv_flag pflag;
2148 	int err;
2149 
2150 	mutex_lock(&priv->state_lock);
2151 
2152 	for (pflag = 0; pflag < MLX5E_NUM_PFLAGS; pflag++) {
2153 		err = mlx5e_handle_pflag(netdev, pflags, pflag);
2154 		if (err)
2155 			break;
2156 	}
2157 
2158 	mutex_unlock(&priv->state_lock);
2159 
2160 	/* Need to fix some features.. */
2161 	netdev_update_features(netdev);
2162 
2163 	return err;
2164 }
2165 
mlx5e_get_priv_flags(struct net_device * netdev)2166 static u32 mlx5e_get_priv_flags(struct net_device *netdev)
2167 {
2168 	struct mlx5e_priv *priv = netdev_priv(netdev);
2169 
2170 	return priv->channels.params.pflags;
2171 }
2172 
mlx5e_get_rxnfc(struct net_device * dev,struct ethtool_rxnfc * info,u32 * rule_locs)2173 int mlx5e_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
2174 		    u32 *rule_locs)
2175 {
2176 	struct mlx5e_priv *priv = netdev_priv(dev);
2177 
2178 	/* ETHTOOL_GRXRINGS is needed by ethtool -x which is not part
2179 	 * of rxnfc. We keep this logic out of mlx5e_ethtool_get_rxnfc,
2180 	 * to avoid breaking "ethtool -x" when mlx5e_ethtool_get_rxnfc
2181 	 * is compiled out via CONFIG_MLX5_EN_RXNFC=n.
2182 	 */
2183 	if (info->cmd == ETHTOOL_GRXRINGS) {
2184 		info->data = priv->channels.params.num_channels;
2185 		return 0;
2186 	}
2187 
2188 	return mlx5e_ethtool_get_rxnfc(priv, info, rule_locs);
2189 }
2190 
mlx5e_set_rxnfc(struct net_device * dev,struct ethtool_rxnfc * cmd)2191 int mlx5e_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
2192 {
2193 	struct mlx5e_priv *priv = netdev_priv(dev);
2194 
2195 	return mlx5e_ethtool_set_rxnfc(priv, cmd);
2196 }
2197 
query_port_status_opcode(struct mlx5_core_dev * mdev,u32 * status_opcode)2198 static int query_port_status_opcode(struct mlx5_core_dev *mdev, u32 *status_opcode)
2199 {
2200 	struct mlx5_ifc_pddr_troubleshooting_page_bits *pddr_troubleshooting_page;
2201 	u32 in[MLX5_ST_SZ_DW(pddr_reg)] = {};
2202 	u32 out[MLX5_ST_SZ_DW(pddr_reg)];
2203 	int err;
2204 
2205 	MLX5_SET(pddr_reg, in, local_port, 1);
2206 	MLX5_SET(pddr_reg, in, page_select,
2207 		 MLX5_PDDR_REG_PAGE_SELECT_TROUBLESHOOTING_INFO_PAGE);
2208 
2209 	pddr_troubleshooting_page = MLX5_ADDR_OF(pddr_reg, in, page_data);
2210 	MLX5_SET(pddr_troubleshooting_page, pddr_troubleshooting_page,
2211 		 group_opcode, MLX5_PDDR_REG_TRBLSH_GROUP_OPCODE_MONITOR);
2212 	err = mlx5_core_access_reg(mdev, in, sizeof(in), out,
2213 				   sizeof(out), MLX5_REG_PDDR, 0, 0);
2214 	if (err)
2215 		return err;
2216 
2217 	pddr_troubleshooting_page = MLX5_ADDR_OF(pddr_reg, out, page_data);
2218 	*status_opcode = MLX5_GET(pddr_troubleshooting_page, pddr_troubleshooting_page,
2219 				  status_opcode);
2220 	return 0;
2221 }
2222 
2223 struct mlx5e_ethtool_link_ext_state_opcode_mapping {
2224 	u32 status_opcode;
2225 	enum ethtool_link_ext_state link_ext_state;
2226 	u8 link_ext_substate;
2227 };
2228 
2229 static const struct mlx5e_ethtool_link_ext_state_opcode_mapping
2230 mlx5e_link_ext_state_opcode_map[] = {
2231 	/* States relating to the autonegotiation or issues therein */
2232 	{2, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2233 		ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED},
2234 	{3, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2235 		ETHTOOL_LINK_EXT_SUBSTATE_AN_ACK_NOT_RECEIVED},
2236 	{4, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2237 		ETHTOOL_LINK_EXT_SUBSTATE_AN_NEXT_PAGE_EXCHANGE_FAILED},
2238 	{36, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2239 		ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_PARTNER_DETECTED_FORCE_MODE},
2240 	{38, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2241 		ETHTOOL_LINK_EXT_SUBSTATE_AN_FEC_MISMATCH_DURING_OVERRIDE},
2242 	{39, ETHTOOL_LINK_EXT_STATE_AUTONEG,
2243 		ETHTOOL_LINK_EXT_SUBSTATE_AN_NO_HCD},
2244 
2245 	/* Failure during link training */
2246 	{5, ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE,
2247 		ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_FRAME_LOCK_NOT_ACQUIRED},
2248 	{6, ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE,
2249 		ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_LINK_INHIBIT_TIMEOUT},
2250 	{7, ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE,
2251 		ETHTOOL_LINK_EXT_SUBSTATE_LT_KR_LINK_PARTNER_DID_NOT_SET_RECEIVER_READY},
2252 	{8, ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE, 0},
2253 	{14, ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE,
2254 		ETHTOOL_LINK_EXT_SUBSTATE_LT_REMOTE_FAULT},
2255 
2256 	/* Logical mismatch in physical coding sublayer or forward error correction sublayer */
2257 	{9, ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH,
2258 		ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_ACQUIRE_BLOCK_LOCK},
2259 	{10, ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH,
2260 		ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_ACQUIRE_AM_LOCK},
2261 	{11, ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH,
2262 		ETHTOOL_LINK_EXT_SUBSTATE_LLM_PCS_DID_NOT_GET_ALIGN_STATUS},
2263 	{12, ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH,
2264 		ETHTOOL_LINK_EXT_SUBSTATE_LLM_FC_FEC_IS_NOT_LOCKED},
2265 	{13, ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH,
2266 		ETHTOOL_LINK_EXT_SUBSTATE_LLM_RS_FEC_IS_NOT_LOCKED},
2267 
2268 	/* Signal integrity issues */
2269 	{15, ETHTOOL_LINK_EXT_STATE_BAD_SIGNAL_INTEGRITY, 0},
2270 	{17, ETHTOOL_LINK_EXT_STATE_BAD_SIGNAL_INTEGRITY,
2271 		ETHTOOL_LINK_EXT_SUBSTATE_BSI_LARGE_NUMBER_OF_PHYSICAL_ERRORS},
2272 	{42, ETHTOOL_LINK_EXT_STATE_BAD_SIGNAL_INTEGRITY,
2273 		ETHTOOL_LINK_EXT_SUBSTATE_BSI_UNSUPPORTED_RATE},
2274 
2275 	/* No cable connected */
2276 	{1024, ETHTOOL_LINK_EXT_STATE_NO_CABLE, 0},
2277 
2278 	/* Failure is related to cable, e.g., unsupported cable */
2279 	{16, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE,
2280 		ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE},
2281 	{20, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE,
2282 		ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE},
2283 	{29, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE,
2284 		ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE},
2285 	{1025, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE,
2286 		ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE},
2287 	{1029, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE,
2288 		ETHTOOL_LINK_EXT_SUBSTATE_CI_UNSUPPORTED_CABLE},
2289 	{1031, ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE, 0},
2290 
2291 	/* Failure is related to EEPROM, e.g., failure during reading or parsing the data */
2292 	{1027, ETHTOOL_LINK_EXT_STATE_EEPROM_ISSUE, 0},
2293 
2294 	/* Failure during calibration algorithm */
2295 	{23, ETHTOOL_LINK_EXT_STATE_CALIBRATION_FAILURE, 0},
2296 
2297 	/* The hardware is not able to provide the power required from cable or module */
2298 	{1032, ETHTOOL_LINK_EXT_STATE_POWER_BUDGET_EXCEEDED, 0},
2299 
2300 	/* The module is overheated */
2301 	{1030, ETHTOOL_LINK_EXT_STATE_OVERHEAT, 0},
2302 };
2303 
2304 static void
mlx5e_set_link_ext_state(struct mlx5e_ethtool_link_ext_state_opcode_mapping link_ext_state_mapping,struct ethtool_link_ext_state_info * link_ext_state_info)2305 mlx5e_set_link_ext_state(struct mlx5e_ethtool_link_ext_state_opcode_mapping
2306 			 link_ext_state_mapping,
2307 			 struct ethtool_link_ext_state_info *link_ext_state_info)
2308 {
2309 	switch (link_ext_state_mapping.link_ext_state) {
2310 	case ETHTOOL_LINK_EXT_STATE_AUTONEG:
2311 		link_ext_state_info->autoneg =
2312 			link_ext_state_mapping.link_ext_substate;
2313 		break;
2314 	case ETHTOOL_LINK_EXT_STATE_LINK_TRAINING_FAILURE:
2315 		link_ext_state_info->link_training =
2316 			link_ext_state_mapping.link_ext_substate;
2317 		break;
2318 	case ETHTOOL_LINK_EXT_STATE_LINK_LOGICAL_MISMATCH:
2319 		link_ext_state_info->link_logical_mismatch =
2320 			link_ext_state_mapping.link_ext_substate;
2321 		break;
2322 	case ETHTOOL_LINK_EXT_STATE_BAD_SIGNAL_INTEGRITY:
2323 		link_ext_state_info->bad_signal_integrity =
2324 			link_ext_state_mapping.link_ext_substate;
2325 		break;
2326 	case ETHTOOL_LINK_EXT_STATE_CABLE_ISSUE:
2327 		link_ext_state_info->cable_issue =
2328 			link_ext_state_mapping.link_ext_substate;
2329 		break;
2330 	default:
2331 		break;
2332 	}
2333 
2334 	link_ext_state_info->link_ext_state = link_ext_state_mapping.link_ext_state;
2335 }
2336 
2337 static int
mlx5e_get_link_ext_state(struct net_device * dev,struct ethtool_link_ext_state_info * link_ext_state_info)2338 mlx5e_get_link_ext_state(struct net_device *dev,
2339 			 struct ethtool_link_ext_state_info *link_ext_state_info)
2340 {
2341 	struct mlx5e_ethtool_link_ext_state_opcode_mapping link_ext_state_mapping;
2342 	struct mlx5e_priv *priv = netdev_priv(dev);
2343 	u32 status_opcode = 0;
2344 	int i;
2345 
2346 	/* Exit without data if the interface state is OK, since no extended data is
2347 	 * available in such case
2348 	 */
2349 	if (netif_carrier_ok(dev))
2350 		return -ENODATA;
2351 
2352 	if (query_port_status_opcode(priv->mdev, &status_opcode) ||
2353 	    !status_opcode)
2354 		return -ENODATA;
2355 
2356 	for (i = 0; i < ARRAY_SIZE(mlx5e_link_ext_state_opcode_map); i++) {
2357 		link_ext_state_mapping = mlx5e_link_ext_state_opcode_map[i];
2358 		if (link_ext_state_mapping.status_opcode == status_opcode) {
2359 			mlx5e_set_link_ext_state(link_ext_state_mapping,
2360 						 link_ext_state_info);
2361 			return 0;
2362 		}
2363 	}
2364 
2365 	return -ENODATA;
2366 }
2367 
mlx5e_get_eth_phy_stats(struct net_device * netdev,struct ethtool_eth_phy_stats * phy_stats)2368 static void mlx5e_get_eth_phy_stats(struct net_device *netdev,
2369 				    struct ethtool_eth_phy_stats *phy_stats)
2370 {
2371 	struct mlx5e_priv *priv = netdev_priv(netdev);
2372 
2373 	mlx5e_stats_eth_phy_get(priv, phy_stats);
2374 }
2375 
mlx5e_get_eth_mac_stats(struct net_device * netdev,struct ethtool_eth_mac_stats * mac_stats)2376 static void mlx5e_get_eth_mac_stats(struct net_device *netdev,
2377 				    struct ethtool_eth_mac_stats *mac_stats)
2378 {
2379 	struct mlx5e_priv *priv = netdev_priv(netdev);
2380 
2381 	mlx5e_stats_eth_mac_get(priv, mac_stats);
2382 }
2383 
mlx5e_get_eth_ctrl_stats(struct net_device * netdev,struct ethtool_eth_ctrl_stats * ctrl_stats)2384 static void mlx5e_get_eth_ctrl_stats(struct net_device *netdev,
2385 				     struct ethtool_eth_ctrl_stats *ctrl_stats)
2386 {
2387 	struct mlx5e_priv *priv = netdev_priv(netdev);
2388 
2389 	mlx5e_stats_eth_ctrl_get(priv, ctrl_stats);
2390 }
2391 
mlx5e_get_rmon_stats(struct net_device * netdev,struct ethtool_rmon_stats * rmon_stats,const struct ethtool_rmon_hist_range ** ranges)2392 static void mlx5e_get_rmon_stats(struct net_device *netdev,
2393 				 struct ethtool_rmon_stats *rmon_stats,
2394 				 const struct ethtool_rmon_hist_range **ranges)
2395 {
2396 	struct mlx5e_priv *priv = netdev_priv(netdev);
2397 
2398 	mlx5e_stats_rmon_get(priv, rmon_stats, ranges);
2399 }
2400 
2401 const struct ethtool_ops mlx5e_ethtool_ops = {
2402 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
2403 				     ETHTOOL_COALESCE_MAX_FRAMES |
2404 				     ETHTOOL_COALESCE_USE_ADAPTIVE |
2405 				     ETHTOOL_COALESCE_USE_CQE,
2406 	.get_drvinfo       = mlx5e_get_drvinfo,
2407 	.get_link          = ethtool_op_get_link,
2408 	.get_link_ext_state  = mlx5e_get_link_ext_state,
2409 	.get_strings       = mlx5e_get_strings,
2410 	.get_sset_count    = mlx5e_get_sset_count,
2411 	.get_ethtool_stats = mlx5e_get_ethtool_stats,
2412 	.get_ringparam     = mlx5e_get_ringparam,
2413 	.set_ringparam     = mlx5e_set_ringparam,
2414 	.get_channels      = mlx5e_get_channels,
2415 	.set_channels      = mlx5e_set_channels,
2416 	.get_coalesce      = mlx5e_get_coalesce,
2417 	.set_coalesce      = mlx5e_set_coalesce,
2418 	.get_link_ksettings  = mlx5e_get_link_ksettings,
2419 	.set_link_ksettings  = mlx5e_set_link_ksettings,
2420 	.get_rxfh_key_size   = mlx5e_get_rxfh_key_size,
2421 	.get_rxfh_indir_size = mlx5e_get_rxfh_indir_size,
2422 	.get_rxfh          = mlx5e_get_rxfh,
2423 	.set_rxfh          = mlx5e_set_rxfh,
2424 	.get_rxfh_context  = mlx5e_get_rxfh_context,
2425 	.set_rxfh_context  = mlx5e_set_rxfh_context,
2426 	.get_rxnfc         = mlx5e_get_rxnfc,
2427 	.set_rxnfc         = mlx5e_set_rxnfc,
2428 	.get_tunable       = mlx5e_get_tunable,
2429 	.set_tunable       = mlx5e_set_tunable,
2430 	.get_pause_stats   = mlx5e_get_pause_stats,
2431 	.get_pauseparam    = mlx5e_get_pauseparam,
2432 	.set_pauseparam    = mlx5e_set_pauseparam,
2433 	.get_ts_info       = mlx5e_get_ts_info,
2434 	.set_phys_id       = mlx5e_set_phys_id,
2435 	.get_wol	   = mlx5e_get_wol,
2436 	.set_wol	   = mlx5e_set_wol,
2437 	.get_module_info   = mlx5e_get_module_info,
2438 	.get_module_eeprom = mlx5e_get_module_eeprom,
2439 	.get_module_eeprom_by_page = mlx5e_get_module_eeprom_by_page,
2440 	.flash_device      = mlx5e_flash_device,
2441 	.get_priv_flags    = mlx5e_get_priv_flags,
2442 	.set_priv_flags    = mlx5e_set_priv_flags,
2443 	.self_test         = mlx5e_self_test,
2444 	.get_msglevel      = mlx5e_get_msglevel,
2445 	.set_msglevel      = mlx5e_set_msglevel,
2446 	.get_fec_stats     = mlx5e_get_fec_stats,
2447 	.get_fecparam      = mlx5e_get_fecparam,
2448 	.set_fecparam      = mlx5e_set_fecparam,
2449 	.get_eth_phy_stats = mlx5e_get_eth_phy_stats,
2450 	.get_eth_mac_stats = mlx5e_get_eth_mac_stats,
2451 	.get_eth_ctrl_stats = mlx5e_get_eth_ctrl_stats,
2452 	.get_rmon_stats    = mlx5e_get_rmon_stats,
2453 };
2454