1 /*
2 * Copyright (c) 2007 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
34 #include <linux/kernel.h>
35 #include <linux/ethtool.h>
36 #include <linux/netdevice.h>
37
38 #include "mlx4_en.h"
39 #include "en_port.h"
40
41
42 static void mlx4_en_update_lro_stats(struct mlx4_en_priv *priv)
43 {
44 int i;
45
46 priv->port_stats.lro_aggregated = 0;
47 priv->port_stats.lro_flushed = 0;
48 priv->port_stats.lro_no_desc = 0;
49
50 for (i = 0; i < priv->rx_ring_num; i++) {
51 priv->port_stats.lro_aggregated += priv->rx_ring[i].lro.stats.aggregated;
52 priv->port_stats.lro_flushed += priv->rx_ring[i].lro.stats.flushed;
53 priv->port_stats.lro_no_desc += priv->rx_ring[i].lro.stats.no_desc;
54 }
55 }
56
57 static void
58 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
59 {
60 struct mlx4_en_priv *priv = netdev_priv(dev);
61 struct mlx4_en_dev *mdev = priv->mdev;
62
63 sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
64 strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
65 sprintf(drvinfo->fw_version, "%d.%d.%d",
66 (u16) (mdev->dev->caps.fw_ver >> 32),
67 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
68 (u16) (mdev->dev->caps.fw_ver & 0xffff));
69 strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
70 drvinfo->n_stats = 0;
71 drvinfo->regdump_len = 0;
72 drvinfo->eedump_len = 0;
73 }
74
75 static u32 mlx4_en_get_tso(struct net_device *dev)
76 {
77 return (dev->features & NETIF_F_TSO) != 0;
78 }
79
80 static int mlx4_en_set_tso(struct net_device *dev, u32 data)
81 {
82 struct mlx4_en_priv *priv = netdev_priv(dev);
83
84 if (data) {
85 if (!priv->mdev->LSO_support)
86 return -EPERM;
87 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
88 } else
89 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
90 return 0;
91 }
92
93 static u32 mlx4_en_get_rx_csum(struct net_device *dev)
94 {
95 struct mlx4_en_priv *priv = netdev_priv(dev);
96 return priv->rx_csum;
97 }
98
99 static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
100 {
101 struct mlx4_en_priv *priv = netdev_priv(dev);
102 priv->rx_csum = (data != 0);
103 return 0;
104 }
105
106 static const char main_strings[][ETH_GSTRING_LEN] = {
107 "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
108 "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
109 "rx_length_errors", "rx_over_errors", "rx_crc_errors",
110 "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
111 "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
112 "tx_heartbeat_errors", "tx_window_errors",
113
114 /* port statistics */
115 "lro_aggregated", "lro_flushed", "lro_no_desc", "tso_packets",
116 "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
117 "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
118
119 /* packet statistics */
120 "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
121 "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
122 "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
123 "tx_prio_6", "tx_prio_7",
124 };
125 #define NUM_MAIN_STATS 21
126 #define NUM_ALL_STATS (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
127
128 static u32 mlx4_en_get_msglevel(struct net_device *dev)
129 {
130 return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
131 }
132
133 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
134 {
135 ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
136 }
137
138 static void mlx4_en_get_wol(struct net_device *netdev,
139 struct ethtool_wolinfo *wol)
140 {
141 wol->supported = 0;
142 wol->wolopts = 0;
143
144 return;
145 }
146
147 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
148 {
149 struct mlx4_en_priv *priv = netdev_priv(dev);
150
151 if (sset != ETH_SS_STATS)
152 return -EOPNOTSUPP;
153
154 return NUM_ALL_STATS + (priv->tx_ring_num + priv->rx_ring_num) * 2;
155 }
156
157 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
158 struct ethtool_stats *stats, uint64_t *data)
159 {
160 struct mlx4_en_priv *priv = netdev_priv(dev);
161 int index = 0;
162 int i;
163
164 spin_lock_bh(&priv->stats_lock);
165
166 mlx4_en_update_lro_stats(priv);
167
168 for (i = 0; i < NUM_MAIN_STATS; i++)
169 data[index++] = ((unsigned long *) &priv->stats)[i];
170 for (i = 0; i < NUM_PORT_STATS; i++)
171 data[index++] = ((unsigned long *) &priv->port_stats)[i];
172 for (i = 0; i < priv->tx_ring_num; i++) {
173 data[index++] = priv->tx_ring[i].packets;
174 data[index++] = priv->tx_ring[i].bytes;
175 }
176 for (i = 0; i < priv->rx_ring_num; i++) {
177 data[index++] = priv->rx_ring[i].packets;
178 data[index++] = priv->rx_ring[i].bytes;
179 }
180 for (i = 0; i < NUM_PKT_STATS; i++)
181 data[index++] = ((unsigned long *) &priv->pkstats)[i];
182 spin_unlock_bh(&priv->stats_lock);
183
184 }
185
186 static void mlx4_en_get_strings(struct net_device *dev,
187 uint32_t stringset, uint8_t *data)
188 {
189 struct mlx4_en_priv *priv = netdev_priv(dev);
190 int index = 0;
191 int i;
192
193 if (stringset != ETH_SS_STATS)
194 return;
195
196 /* Add main counters */
197 for (i = 0; i < NUM_MAIN_STATS; i++)
198 strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
199 for (i = 0; i < NUM_PORT_STATS; i++)
200 strcpy(data + (index++) * ETH_GSTRING_LEN,
201 main_strings[i + NUM_MAIN_STATS]);
202 for (i = 0; i < priv->tx_ring_num; i++) {
203 sprintf(data + (index++) * ETH_GSTRING_LEN,
204 "tx%d_packets", i);
205 sprintf(data + (index++) * ETH_GSTRING_LEN,
206 "tx%d_bytes", i);
207 }
208 for (i = 0; i < priv->rx_ring_num; i++) {
209 sprintf(data + (index++) * ETH_GSTRING_LEN,
210 "rx%d_packets", i);
211 sprintf(data + (index++) * ETH_GSTRING_LEN,
212 "rx%d_bytes", i);
213 }
214 for (i = 0; i < NUM_PKT_STATS; i++)
215 strcpy(data + (index++) * ETH_GSTRING_LEN,
216 main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
217 }
218
219 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
220 {
221 cmd->autoneg = AUTONEG_DISABLE;
222 cmd->supported = SUPPORTED_10000baseT_Full;
223 cmd->advertising = ADVERTISED_1000baseT_Full;
224 if (netif_carrier_ok(dev)) {
225 cmd->speed = SPEED_10000;
226 cmd->duplex = DUPLEX_FULL;
227 } else {
228 cmd->speed = -1;
229 cmd->duplex = -1;
230 }
231 return 0;
232 }
233
234 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
235 {
236 if ((cmd->autoneg == AUTONEG_ENABLE) ||
237 (cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
238 return -EINVAL;
239
240 /* Nothing to change */
241 return 0;
242 }
243
244 static int mlx4_en_get_coalesce(struct net_device *dev,
245 struct ethtool_coalesce *coal)
246 {
247 struct mlx4_en_priv *priv = netdev_priv(dev);
248
249 coal->tx_coalesce_usecs = 0;
250 coal->tx_max_coalesced_frames = 0;
251 coal->rx_coalesce_usecs = priv->rx_usecs;
252 coal->rx_max_coalesced_frames = priv->rx_frames;
253
254 coal->pkt_rate_low = priv->pkt_rate_low;
255 coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
256 coal->pkt_rate_high = priv->pkt_rate_high;
257 coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
258 coal->rate_sample_interval = priv->sample_interval;
259 coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
260 return 0;
261 }
262
263 static int mlx4_en_set_coalesce(struct net_device *dev,
264 struct ethtool_coalesce *coal)
265 {
266 struct mlx4_en_priv *priv = netdev_priv(dev);
267 int err, i;
268
269 priv->rx_frames = (coal->rx_max_coalesced_frames ==
270 MLX4_EN_AUTO_CONF) ?
271 MLX4_EN_RX_COAL_TARGET :
272 coal->rx_max_coalesced_frames;
273 priv->rx_usecs = (coal->rx_coalesce_usecs ==
274 MLX4_EN_AUTO_CONF) ?
275 MLX4_EN_RX_COAL_TIME :
276 coal->rx_coalesce_usecs;
277
278 /* Set adaptive coalescing params */
279 priv->pkt_rate_low = coal->pkt_rate_low;
280 priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
281 priv->pkt_rate_high = coal->pkt_rate_high;
282 priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
283 priv->sample_interval = coal->rate_sample_interval;
284 priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
285 priv->last_moder_time = MLX4_EN_AUTO_CONF;
286 if (priv->adaptive_rx_coal)
287 return 0;
288
289 for (i = 0; i < priv->rx_ring_num; i++) {
290 priv->rx_cq[i].moder_cnt = priv->rx_frames;
291 priv->rx_cq[i].moder_time = priv->rx_usecs;
292 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
293 if (err)
294 return err;
295 }
296 return 0;
297 }
298
299 static int mlx4_en_set_pauseparam(struct net_device *dev,
300 struct ethtool_pauseparam *pause)
301 {
302 struct mlx4_en_priv *priv = netdev_priv(dev);
303 struct mlx4_en_dev *mdev = priv->mdev;
304 int err;
305
306 priv->prof->tx_pause = pause->tx_pause != 0;
307 priv->prof->rx_pause = pause->rx_pause != 0;
308 err = mlx4_SET_PORT_general(mdev->dev, priv->port,
309 priv->rx_skb_size + ETH_FCS_LEN,
310 priv->prof->tx_pause,
311 priv->prof->tx_ppp,
312 priv->prof->rx_pause,
313 priv->prof->rx_ppp);
314 if (err)
315 en_err(priv, "Failed setting pause params\n");
316
317 return err;
318 }
319
320 static void mlx4_en_get_pauseparam(struct net_device *dev,
321 struct ethtool_pauseparam *pause)
322 {
323 struct mlx4_en_priv *priv = netdev_priv(dev);
324
325 pause->tx_pause = priv->prof->tx_pause;
326 pause->rx_pause = priv->prof->rx_pause;
327 }
328
329 static int mlx4_en_set_ringparam(struct net_device *dev,
330 struct ethtool_ringparam *param)
331 {
332 struct mlx4_en_priv *priv = netdev_priv(dev);
333 struct mlx4_en_dev *mdev = priv->mdev;
334 u32 rx_size, tx_size;
335 int port_up = 0;
336 int err = 0;
337
338 if (param->rx_jumbo_pending || param->rx_mini_pending)
339 return -EINVAL;
340
341 rx_size = roundup_pow_of_two(param->rx_pending);
342 rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
343 rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
344 tx_size = roundup_pow_of_two(param->tx_pending);
345 tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
346 tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
347
348 if (rx_size == priv->prof->rx_ring_size &&
349 tx_size == priv->prof->tx_ring_size)
350 return 0;
351
352 mutex_lock(&mdev->state_lock);
353 if (priv->port_up) {
354 port_up = 1;
355 mlx4_en_stop_port(dev);
356 }
357
358 mlx4_en_free_resources(priv);
359
360 priv->prof->tx_ring_size = tx_size;
361 priv->prof->rx_ring_size = rx_size;
362
363 err = mlx4_en_alloc_resources(priv);
364 if (err) {
365 en_err(priv, "Failed reallocating port resources\n");
366 goto out;
367 }
368 if (port_up) {
369 err = mlx4_en_start_port(dev);
370 if (err)
371 en_err(priv, "Failed starting port\n");
372 }
373
374 out:
375 mutex_unlock(&mdev->state_lock);
376 return err;
377 }
378
379 static void mlx4_en_get_ringparam(struct net_device *dev,
380 struct ethtool_ringparam *param)
381 {
382 struct mlx4_en_priv *priv = netdev_priv(dev);
383 struct mlx4_en_dev *mdev = priv->mdev;
384
385 memset(param, 0, sizeof(*param));
386 param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
387 param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
388 param->rx_pending = mdev->profile.prof[priv->port].rx_ring_size;
389 param->tx_pending = mdev->profile.prof[priv->port].tx_ring_size;
390 }
391
392 const struct ethtool_ops mlx4_en_ethtool_ops = {
393 .get_drvinfo = mlx4_en_get_drvinfo,
394 .get_settings = mlx4_en_get_settings,
395 .set_settings = mlx4_en_set_settings,
396 #ifdef NETIF_F_TSO
397 .get_tso = mlx4_en_get_tso,
398 .set_tso = mlx4_en_set_tso,
399 #endif
400 .get_sg = ethtool_op_get_sg,
401 .set_sg = ethtool_op_set_sg,
402 .get_link = ethtool_op_get_link,
403 .get_rx_csum = mlx4_en_get_rx_csum,
404 .set_rx_csum = mlx4_en_set_rx_csum,
405 .get_tx_csum = ethtool_op_get_tx_csum,
406 .set_tx_csum = ethtool_op_set_tx_ipv6_csum,
407 .get_strings = mlx4_en_get_strings,
408 .get_sset_count = mlx4_en_get_sset_count,
409 .get_ethtool_stats = mlx4_en_get_ethtool_stats,
410 .get_wol = mlx4_en_get_wol,
411 .get_msglevel = mlx4_en_get_msglevel,
412 .set_msglevel = mlx4_en_set_msglevel,
413 .get_coalesce = mlx4_en_get_coalesce,
414 .set_coalesce = mlx4_en_set_coalesce,
415 .get_pauseparam = mlx4_en_get_pauseparam,
416 .set_pauseparam = mlx4_en_set_pauseparam,
417 .get_ringparam = mlx4_en_get_ringparam,
418 .set_ringparam = mlx4_en_set_ringparam,
419 .get_flags = ethtool_op_get_flags,
420 .set_flags = ethtool_op_set_flags,
421 };
422
423
424
425
426
427
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