1 /*
2 * Copyright (c) 2016, 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 <generated/utsrelease.h>
34 #include <linux/mlx5/fs.h>
35 #include <net/switchdev.h>
36 #include <net/pkt_cls.h>
37 #include <net/act_api.h>
38 #include <net/devlink.h>
39 #include <net/ipv6_stubs.h>
40
41 #include "eswitch.h"
42 #include "en.h"
43 #include "en_rep.h"
44 #include "en/txrx.h"
45 #include "en_tc.h"
46 #include "en/rep/tc.h"
47 #include "en/rep/neigh.h"
48 #include "fs_core.h"
49 #include "lib/mlx5.h"
50 #define CREATE_TRACE_POINTS
51 #include "diag/en_rep_tracepoint.h"
52
53 #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
54 max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
55 #define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
56
57 static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
58
mlx5e_rep_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)59 static void mlx5e_rep_get_drvinfo(struct net_device *dev,
60 struct ethtool_drvinfo *drvinfo)
61 {
62 struct mlx5e_priv *priv = netdev_priv(dev);
63 struct mlx5_core_dev *mdev = priv->mdev;
64
65 strlcpy(drvinfo->driver, mlx5e_rep_driver_name,
66 sizeof(drvinfo->driver));
67 strlcpy(drvinfo->version, UTS_RELEASE, sizeof(drvinfo->version));
68 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
69 "%d.%d.%04d (%.16s)",
70 fw_rev_maj(mdev), fw_rev_min(mdev),
71 fw_rev_sub(mdev), mdev->board_id);
72 }
73
mlx5e_uplink_rep_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)74 static void mlx5e_uplink_rep_get_drvinfo(struct net_device *dev,
75 struct ethtool_drvinfo *drvinfo)
76 {
77 struct mlx5e_priv *priv = netdev_priv(dev);
78
79 mlx5e_rep_get_drvinfo(dev, drvinfo);
80 strlcpy(drvinfo->bus_info, pci_name(priv->mdev->pdev),
81 sizeof(drvinfo->bus_info));
82 }
83
84 static const struct counter_desc sw_rep_stats_desc[] = {
85 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
86 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
87 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
88 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
89 };
90
91 struct vport_stats {
92 u64 vport_rx_packets;
93 u64 vport_tx_packets;
94 u64 vport_rx_bytes;
95 u64 vport_tx_bytes;
96 };
97
98 static const struct counter_desc vport_rep_stats_desc[] = {
99 { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_packets) },
100 { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_bytes) },
101 { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_packets) },
102 { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_bytes) },
103 };
104
105 #define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
106 #define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
107
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)108 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)
109 {
110 return NUM_VPORT_REP_SW_COUNTERS;
111 }
112
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)113 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)
114 {
115 int i;
116
117 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
118 strcpy(data + (idx++) * ETH_GSTRING_LEN,
119 sw_rep_stats_desc[i].format);
120 return idx;
121 }
122
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)123 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)
124 {
125 int i;
126
127 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
128 data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.sw,
129 sw_rep_stats_desc, i);
130 return idx;
131 }
132
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)133 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)
134 {
135 struct mlx5e_sw_stats *s = &priv->stats.sw;
136 struct rtnl_link_stats64 stats64 = {};
137
138 memset(s, 0, sizeof(*s));
139 mlx5e_fold_sw_stats64(priv, &stats64);
140
141 s->rx_packets = stats64.rx_packets;
142 s->rx_bytes = stats64.rx_bytes;
143 s->tx_packets = stats64.tx_packets;
144 s->tx_bytes = stats64.tx_bytes;
145 s->tx_queue_dropped = stats64.tx_dropped;
146 }
147
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)148 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)
149 {
150 return NUM_VPORT_REP_HW_COUNTERS;
151 }
152
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)153 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)
154 {
155 int i;
156
157 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
158 strcpy(data + (idx++) * ETH_GSTRING_LEN, vport_rep_stats_desc[i].format);
159 return idx;
160 }
161
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)162 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)
163 {
164 int i;
165
166 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
167 data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.vf_vport,
168 vport_rep_stats_desc, i);
169 return idx;
170 }
171
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)172 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)
173 {
174 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
175 struct mlx5e_rep_priv *rpriv = priv->ppriv;
176 struct mlx5_eswitch_rep *rep = rpriv->rep;
177 struct rtnl_link_stats64 *vport_stats;
178 struct ifla_vf_stats vf_stats;
179 int err;
180
181 err = mlx5_eswitch_get_vport_stats(esw, rep->vport, &vf_stats);
182 if (err) {
183 netdev_warn(priv->netdev, "vport %d error %d reading stats\n",
184 rep->vport, err);
185 return;
186 }
187
188 vport_stats = &priv->stats.vf_vport;
189 /* flip tx/rx as we are reporting the counters for the switch vport */
190 vport_stats->rx_packets = vf_stats.tx_packets;
191 vport_stats->rx_bytes = vf_stats.tx_bytes;
192 vport_stats->tx_packets = vf_stats.rx_packets;
193 vport_stats->tx_bytes = vf_stats.rx_bytes;
194 }
195
mlx5e_rep_get_strings(struct net_device * dev,u32 stringset,uint8_t * data)196 static void mlx5e_rep_get_strings(struct net_device *dev,
197 u32 stringset, uint8_t *data)
198 {
199 struct mlx5e_priv *priv = netdev_priv(dev);
200
201 switch (stringset) {
202 case ETH_SS_STATS:
203 mlx5e_stats_fill_strings(priv, data);
204 break;
205 }
206 }
207
mlx5e_rep_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)208 static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
209 struct ethtool_stats *stats, u64 *data)
210 {
211 struct mlx5e_priv *priv = netdev_priv(dev);
212
213 mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
214 }
215
mlx5e_rep_get_sset_count(struct net_device * dev,int sset)216 static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
217 {
218 struct mlx5e_priv *priv = netdev_priv(dev);
219
220 switch (sset) {
221 case ETH_SS_STATS:
222 return mlx5e_stats_total_num(priv);
223 default:
224 return -EOPNOTSUPP;
225 }
226 }
227
mlx5e_rep_get_ringparam(struct net_device * dev,struct ethtool_ringparam * param)228 static void mlx5e_rep_get_ringparam(struct net_device *dev,
229 struct ethtool_ringparam *param)
230 {
231 struct mlx5e_priv *priv = netdev_priv(dev);
232
233 mlx5e_ethtool_get_ringparam(priv, param);
234 }
235
mlx5e_rep_set_ringparam(struct net_device * dev,struct ethtool_ringparam * param)236 static int mlx5e_rep_set_ringparam(struct net_device *dev,
237 struct ethtool_ringparam *param)
238 {
239 struct mlx5e_priv *priv = netdev_priv(dev);
240
241 return mlx5e_ethtool_set_ringparam(priv, param);
242 }
243
mlx5e_rep_get_channels(struct net_device * dev,struct ethtool_channels * ch)244 static void mlx5e_rep_get_channels(struct net_device *dev,
245 struct ethtool_channels *ch)
246 {
247 struct mlx5e_priv *priv = netdev_priv(dev);
248
249 mlx5e_ethtool_get_channels(priv, ch);
250 }
251
mlx5e_rep_set_channels(struct net_device * dev,struct ethtool_channels * ch)252 static int mlx5e_rep_set_channels(struct net_device *dev,
253 struct ethtool_channels *ch)
254 {
255 struct mlx5e_priv *priv = netdev_priv(dev);
256
257 return mlx5e_ethtool_set_channels(priv, ch);
258 }
259
mlx5e_rep_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal)260 static int mlx5e_rep_get_coalesce(struct net_device *netdev,
261 struct ethtool_coalesce *coal)
262 {
263 struct mlx5e_priv *priv = netdev_priv(netdev);
264
265 return mlx5e_ethtool_get_coalesce(priv, coal);
266 }
267
mlx5e_rep_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal)268 static int mlx5e_rep_set_coalesce(struct net_device *netdev,
269 struct ethtool_coalesce *coal)
270 {
271 struct mlx5e_priv *priv = netdev_priv(netdev);
272
273 return mlx5e_ethtool_set_coalesce(priv, coal);
274 }
275
mlx5e_rep_get_rxfh_key_size(struct net_device * netdev)276 static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
277 {
278 struct mlx5e_priv *priv = netdev_priv(netdev);
279
280 return mlx5e_ethtool_get_rxfh_key_size(priv);
281 }
282
mlx5e_rep_get_rxfh_indir_size(struct net_device * netdev)283 static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
284 {
285 struct mlx5e_priv *priv = netdev_priv(netdev);
286
287 return mlx5e_ethtool_get_rxfh_indir_size(priv);
288 }
289
mlx5e_uplink_rep_get_pause_stats(struct net_device * netdev,struct ethtool_pause_stats * stats)290 static void mlx5e_uplink_rep_get_pause_stats(struct net_device *netdev,
291 struct ethtool_pause_stats *stats)
292 {
293 struct mlx5e_priv *priv = netdev_priv(netdev);
294
295 mlx5e_stats_pause_get(priv, stats);
296 }
297
mlx5e_uplink_rep_get_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pauseparam)298 static void mlx5e_uplink_rep_get_pauseparam(struct net_device *netdev,
299 struct ethtool_pauseparam *pauseparam)
300 {
301 struct mlx5e_priv *priv = netdev_priv(netdev);
302
303 mlx5e_ethtool_get_pauseparam(priv, pauseparam);
304 }
305
mlx5e_uplink_rep_set_pauseparam(struct net_device * netdev,struct ethtool_pauseparam * pauseparam)306 static int mlx5e_uplink_rep_set_pauseparam(struct net_device *netdev,
307 struct ethtool_pauseparam *pauseparam)
308 {
309 struct mlx5e_priv *priv = netdev_priv(netdev);
310
311 return mlx5e_ethtool_set_pauseparam(priv, pauseparam);
312 }
313
mlx5e_uplink_rep_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * link_ksettings)314 static int mlx5e_uplink_rep_get_link_ksettings(struct net_device *netdev,
315 struct ethtool_link_ksettings *link_ksettings)
316 {
317 struct mlx5e_priv *priv = netdev_priv(netdev);
318
319 return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
320 }
321
mlx5e_uplink_rep_set_link_ksettings(struct net_device * netdev,const struct ethtool_link_ksettings * link_ksettings)322 static int mlx5e_uplink_rep_set_link_ksettings(struct net_device *netdev,
323 const struct ethtool_link_ksettings *link_ksettings)
324 {
325 struct mlx5e_priv *priv = netdev_priv(netdev);
326
327 return mlx5e_ethtool_set_link_ksettings(priv, link_ksettings);
328 }
329
330 static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
331 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
332 ETHTOOL_COALESCE_MAX_FRAMES |
333 ETHTOOL_COALESCE_USE_ADAPTIVE,
334 .get_drvinfo = mlx5e_rep_get_drvinfo,
335 .get_link = ethtool_op_get_link,
336 .get_strings = mlx5e_rep_get_strings,
337 .get_sset_count = mlx5e_rep_get_sset_count,
338 .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
339 .get_ringparam = mlx5e_rep_get_ringparam,
340 .set_ringparam = mlx5e_rep_set_ringparam,
341 .get_channels = mlx5e_rep_get_channels,
342 .set_channels = mlx5e_rep_set_channels,
343 .get_coalesce = mlx5e_rep_get_coalesce,
344 .set_coalesce = mlx5e_rep_set_coalesce,
345 .get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
346 .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
347 };
348
349 static const struct ethtool_ops mlx5e_uplink_rep_ethtool_ops = {
350 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
351 ETHTOOL_COALESCE_MAX_FRAMES |
352 ETHTOOL_COALESCE_USE_ADAPTIVE,
353 .get_drvinfo = mlx5e_uplink_rep_get_drvinfo,
354 .get_link = ethtool_op_get_link,
355 .get_strings = mlx5e_rep_get_strings,
356 .get_sset_count = mlx5e_rep_get_sset_count,
357 .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
358 .get_ringparam = mlx5e_rep_get_ringparam,
359 .set_ringparam = mlx5e_rep_set_ringparam,
360 .get_channels = mlx5e_rep_get_channels,
361 .set_channels = mlx5e_rep_set_channels,
362 .get_coalesce = mlx5e_rep_get_coalesce,
363 .set_coalesce = mlx5e_rep_set_coalesce,
364 .get_link_ksettings = mlx5e_uplink_rep_get_link_ksettings,
365 .set_link_ksettings = mlx5e_uplink_rep_set_link_ksettings,
366 .get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
367 .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
368 .get_rxfh = mlx5e_get_rxfh,
369 .set_rxfh = mlx5e_set_rxfh,
370 .get_rxnfc = mlx5e_get_rxnfc,
371 .set_rxnfc = mlx5e_set_rxnfc,
372 .get_pause_stats = mlx5e_uplink_rep_get_pause_stats,
373 .get_pauseparam = mlx5e_uplink_rep_get_pauseparam,
374 .set_pauseparam = mlx5e_uplink_rep_set_pauseparam,
375 };
376
mlx5e_sqs2vport_stop(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep)377 static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
378 struct mlx5_eswitch_rep *rep)
379 {
380 struct mlx5e_rep_sq *rep_sq, *tmp;
381 struct mlx5e_rep_priv *rpriv;
382
383 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
384 return;
385
386 rpriv = mlx5e_rep_to_rep_priv(rep);
387 list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
388 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
389 list_del(&rep_sq->list);
390 kfree(rep_sq);
391 }
392 }
393
mlx5e_sqs2vport_start(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,u32 * sqns_array,int sqns_num)394 static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
395 struct mlx5_eswitch_rep *rep,
396 u32 *sqns_array, int sqns_num)
397 {
398 struct mlx5_flow_handle *flow_rule;
399 struct mlx5e_rep_priv *rpriv;
400 struct mlx5e_rep_sq *rep_sq;
401 int err;
402 int i;
403
404 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
405 return 0;
406
407 rpriv = mlx5e_rep_to_rep_priv(rep);
408 for (i = 0; i < sqns_num; i++) {
409 rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
410 if (!rep_sq) {
411 err = -ENOMEM;
412 goto out_err;
413 }
414
415 /* Add re-inject rule to the PF/representor sqs */
416 flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw,
417 rep->vport,
418 sqns_array[i]);
419 if (IS_ERR(flow_rule)) {
420 err = PTR_ERR(flow_rule);
421 kfree(rep_sq);
422 goto out_err;
423 }
424 rep_sq->send_to_vport_rule = flow_rule;
425 list_add(&rep_sq->list, &rpriv->vport_sqs_list);
426 }
427 return 0;
428
429 out_err:
430 mlx5e_sqs2vport_stop(esw, rep);
431 return err;
432 }
433
mlx5e_add_sqs_fwd_rules(struct mlx5e_priv * priv)434 int mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
435 {
436 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
437 struct mlx5e_rep_priv *rpriv = priv->ppriv;
438 struct mlx5_eswitch_rep *rep = rpriv->rep;
439 struct mlx5e_channel *c;
440 int n, tc, num_sqs = 0;
441 int err = -ENOMEM;
442 u32 *sqs;
443
444 sqs = kcalloc(priv->channels.num * priv->channels.params.num_tc, sizeof(*sqs), GFP_KERNEL);
445 if (!sqs)
446 goto out;
447
448 for (n = 0; n < priv->channels.num; n++) {
449 c = priv->channels.c[n];
450 for (tc = 0; tc < c->num_tc; tc++)
451 sqs[num_sqs++] = c->sq[tc].sqn;
452 }
453
454 err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
455 kfree(sqs);
456
457 out:
458 if (err)
459 netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
460 return err;
461 }
462
mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv * priv)463 void mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
464 {
465 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
466 struct mlx5e_rep_priv *rpriv = priv->ppriv;
467 struct mlx5_eswitch_rep *rep = rpriv->rep;
468
469 mlx5e_sqs2vport_stop(esw, rep);
470 }
471
mlx5e_rep_open(struct net_device * dev)472 static int mlx5e_rep_open(struct net_device *dev)
473 {
474 struct mlx5e_priv *priv = netdev_priv(dev);
475 struct mlx5e_rep_priv *rpriv = priv->ppriv;
476 struct mlx5_eswitch_rep *rep = rpriv->rep;
477 int err;
478
479 mutex_lock(&priv->state_lock);
480 err = mlx5e_open_locked(dev);
481 if (err)
482 goto unlock;
483
484 if (!mlx5_modify_vport_admin_state(priv->mdev,
485 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
486 rep->vport, 1,
487 MLX5_VPORT_ADMIN_STATE_UP))
488 netif_carrier_on(dev);
489
490 unlock:
491 mutex_unlock(&priv->state_lock);
492 return err;
493 }
494
mlx5e_rep_close(struct net_device * dev)495 static int mlx5e_rep_close(struct net_device *dev)
496 {
497 struct mlx5e_priv *priv = netdev_priv(dev);
498 struct mlx5e_rep_priv *rpriv = priv->ppriv;
499 struct mlx5_eswitch_rep *rep = rpriv->rep;
500 int ret;
501
502 mutex_lock(&priv->state_lock);
503 mlx5_modify_vport_admin_state(priv->mdev,
504 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
505 rep->vport, 1,
506 MLX5_VPORT_ADMIN_STATE_DOWN);
507 ret = mlx5e_close_locked(dev);
508 mutex_unlock(&priv->state_lock);
509 return ret;
510 }
511
mlx5e_is_uplink_rep(struct mlx5e_priv * priv)512 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
513 {
514 struct mlx5e_rep_priv *rpriv = priv->ppriv;
515 struct mlx5_eswitch_rep *rep;
516
517 if (!MLX5_ESWITCH_MANAGER(priv->mdev))
518 return false;
519
520 if (!rpriv) /* non vport rep mlx5e instances don't use this field */
521 return false;
522
523 rep = rpriv->rep;
524 return (rep->vport == MLX5_VPORT_UPLINK);
525 }
526
mlx5e_rep_has_offload_stats(const struct net_device * dev,int attr_id)527 static bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
528 {
529 switch (attr_id) {
530 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
531 return true;
532 }
533
534 return false;
535 }
536
537 static int
mlx5e_get_sw_stats64(const struct net_device * dev,struct rtnl_link_stats64 * stats)538 mlx5e_get_sw_stats64(const struct net_device *dev,
539 struct rtnl_link_stats64 *stats)
540 {
541 struct mlx5e_priv *priv = netdev_priv(dev);
542
543 mlx5e_fold_sw_stats64(priv, stats);
544 return 0;
545 }
546
mlx5e_rep_get_offload_stats(int attr_id,const struct net_device * dev,void * sp)547 static int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
548 void *sp)
549 {
550 switch (attr_id) {
551 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
552 return mlx5e_get_sw_stats64(dev, sp);
553 }
554
555 return -EINVAL;
556 }
557
558 static void
mlx5e_rep_get_stats(struct net_device * dev,struct rtnl_link_stats64 * stats)559 mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
560 {
561 struct mlx5e_priv *priv = netdev_priv(dev);
562
563 /* update HW stats in background for next time */
564 mlx5e_queue_update_stats(priv);
565 memcpy(stats, &priv->stats.vf_vport, sizeof(*stats));
566 }
567
mlx5e_rep_change_mtu(struct net_device * netdev,int new_mtu)568 static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
569 {
570 return mlx5e_change_mtu(netdev, new_mtu, NULL);
571 }
572
mlx5e_uplink_rep_change_mtu(struct net_device * netdev,int new_mtu)573 static int mlx5e_uplink_rep_change_mtu(struct net_device *netdev, int new_mtu)
574 {
575 return mlx5e_change_mtu(netdev, new_mtu, mlx5e_set_dev_port_mtu_ctx);
576 }
577
mlx5e_uplink_rep_set_mac(struct net_device * netdev,void * addr)578 static int mlx5e_uplink_rep_set_mac(struct net_device *netdev, void *addr)
579 {
580 struct sockaddr *saddr = addr;
581
582 if (!is_valid_ether_addr(saddr->sa_data))
583 return -EADDRNOTAVAIL;
584
585 ether_addr_copy(netdev->dev_addr, saddr->sa_data);
586 return 0;
587 }
588
mlx5e_uplink_rep_set_vf_vlan(struct net_device * dev,int vf,u16 vlan,u8 qos,__be16 vlan_proto)589 static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
590 __be16 vlan_proto)
591 {
592 netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
593
594 if (vlan != 0)
595 return -EOPNOTSUPP;
596
597 /* allow setting 0-vid for compatibility with libvirt */
598 return 0;
599 }
600
mlx5e_rep_get_devlink_port(struct net_device * netdev)601 static struct devlink_port *mlx5e_rep_get_devlink_port(struct net_device *netdev)
602 {
603 struct mlx5e_priv *priv = netdev_priv(netdev);
604 struct mlx5e_rep_priv *rpriv = priv->ppriv;
605 struct mlx5_core_dev *dev = priv->mdev;
606
607 return mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
608 }
609
mlx5e_rep_change_carrier(struct net_device * dev,bool new_carrier)610 static int mlx5e_rep_change_carrier(struct net_device *dev, bool new_carrier)
611 {
612 struct mlx5e_priv *priv = netdev_priv(dev);
613 struct mlx5e_rep_priv *rpriv = priv->ppriv;
614 struct mlx5_eswitch_rep *rep = rpriv->rep;
615 int err;
616
617 if (new_carrier) {
618 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
619 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_UP);
620 if (err)
621 return err;
622 netif_carrier_on(dev);
623 } else {
624 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
625 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_DOWN);
626 if (err)
627 return err;
628 netif_carrier_off(dev);
629 }
630 return 0;
631 }
632
633 static const struct net_device_ops mlx5e_netdev_ops_rep = {
634 .ndo_open = mlx5e_rep_open,
635 .ndo_stop = mlx5e_rep_close,
636 .ndo_start_xmit = mlx5e_xmit,
637 .ndo_setup_tc = mlx5e_rep_setup_tc,
638 .ndo_get_devlink_port = mlx5e_rep_get_devlink_port,
639 .ndo_get_stats64 = mlx5e_rep_get_stats,
640 .ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
641 .ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
642 .ndo_change_mtu = mlx5e_rep_change_mtu,
643 .ndo_change_carrier = mlx5e_rep_change_carrier,
644 };
645
646 static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = {
647 .ndo_open = mlx5e_open,
648 .ndo_stop = mlx5e_close,
649 .ndo_start_xmit = mlx5e_xmit,
650 .ndo_set_mac_address = mlx5e_uplink_rep_set_mac,
651 .ndo_setup_tc = mlx5e_rep_setup_tc,
652 .ndo_get_devlink_port = mlx5e_rep_get_devlink_port,
653 .ndo_get_stats64 = mlx5e_get_stats,
654 .ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
655 .ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
656 .ndo_change_mtu = mlx5e_uplink_rep_change_mtu,
657 .ndo_udp_tunnel_add = udp_tunnel_nic_add_port,
658 .ndo_udp_tunnel_del = udp_tunnel_nic_del_port,
659 .ndo_features_check = mlx5e_features_check,
660 .ndo_set_vf_mac = mlx5e_set_vf_mac,
661 .ndo_set_vf_rate = mlx5e_set_vf_rate,
662 .ndo_get_vf_config = mlx5e_get_vf_config,
663 .ndo_get_vf_stats = mlx5e_get_vf_stats,
664 .ndo_set_vf_vlan = mlx5e_uplink_rep_set_vf_vlan,
665 .ndo_set_features = mlx5e_set_features,
666 };
667
mlx5e_eswitch_uplink_rep(struct net_device * netdev)668 bool mlx5e_eswitch_uplink_rep(struct net_device *netdev)
669 {
670 return netdev->netdev_ops == &mlx5e_netdev_ops_uplink_rep;
671 }
672
mlx5e_eswitch_vf_rep(struct net_device * netdev)673 bool mlx5e_eswitch_vf_rep(struct net_device *netdev)
674 {
675 return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
676 }
677
mlx5e_build_rep_params(struct net_device * netdev)678 static void mlx5e_build_rep_params(struct net_device *netdev)
679 {
680 struct mlx5e_priv *priv = netdev_priv(netdev);
681 struct mlx5e_rep_priv *rpriv = priv->ppriv;
682 struct mlx5_eswitch_rep *rep = rpriv->rep;
683 struct mlx5_core_dev *mdev = priv->mdev;
684 struct mlx5e_params *params;
685
686 u8 cq_period_mode = MLX5_CAP_GEN(mdev, cq_period_start_from_cqe) ?
687 MLX5_CQ_PERIOD_MODE_START_FROM_CQE :
688 MLX5_CQ_PERIOD_MODE_START_FROM_EQE;
689
690 params = &priv->channels.params;
691 params->hard_mtu = MLX5E_ETH_HARD_MTU;
692 params->sw_mtu = netdev->mtu;
693
694 /* SQ */
695 if (rep->vport == MLX5_VPORT_UPLINK)
696 params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
697 else
698 params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
699
700 /* RQ */
701 mlx5e_build_rq_params(mdev, params);
702
703 /* CQ moderation params */
704 params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
705 mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
706
707 params->num_tc = 1;
708 params->tunneled_offload_en = false;
709
710 mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode);
711
712 /* RSS */
713 mlx5e_build_rss_params(&priv->rss_params, params->num_channels);
714 }
715
mlx5e_build_rep_netdev(struct net_device * netdev)716 static void mlx5e_build_rep_netdev(struct net_device *netdev)
717 {
718 struct mlx5e_priv *priv = netdev_priv(netdev);
719 struct mlx5e_rep_priv *rpriv = priv->ppriv;
720 struct mlx5_eswitch_rep *rep = rpriv->rep;
721 struct mlx5_core_dev *mdev = priv->mdev;
722
723 SET_NETDEV_DEV(netdev, mdev->device);
724 if (rep->vport == MLX5_VPORT_UPLINK) {
725 netdev->netdev_ops = &mlx5e_netdev_ops_uplink_rep;
726 /* we want a persistent mac for the uplink rep */
727 mlx5_query_mac_address(mdev, netdev->dev_addr);
728 netdev->ethtool_ops = &mlx5e_uplink_rep_ethtool_ops;
729 mlx5e_vxlan_set_netdev_info(priv);
730 mlx5e_dcbnl_build_rep_netdev(netdev);
731 } else {
732 netdev->netdev_ops = &mlx5e_netdev_ops_rep;
733 eth_hw_addr_random(netdev);
734 netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
735 }
736
737 netdev->watchdog_timeo = 15 * HZ;
738
739 netdev->features |= NETIF_F_NETNS_LOCAL;
740
741 netdev->hw_features |= NETIF_F_HW_TC;
742 netdev->hw_features |= NETIF_F_SG;
743 netdev->hw_features |= NETIF_F_IP_CSUM;
744 netdev->hw_features |= NETIF_F_IPV6_CSUM;
745 netdev->hw_features |= NETIF_F_GRO;
746 netdev->hw_features |= NETIF_F_TSO;
747 netdev->hw_features |= NETIF_F_TSO6;
748 netdev->hw_features |= NETIF_F_RXCSUM;
749
750 if (rep->vport == MLX5_VPORT_UPLINK)
751 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_RX;
752 else
753 netdev->features |= NETIF_F_VLAN_CHALLENGED;
754
755 netdev->features |= netdev->hw_features;
756 }
757
mlx5e_init_rep(struct mlx5_core_dev * mdev,struct net_device * netdev,const struct mlx5e_profile * profile,void * ppriv)758 static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
759 struct net_device *netdev,
760 const struct mlx5e_profile *profile,
761 void *ppriv)
762 {
763 struct mlx5e_priv *priv = netdev_priv(netdev);
764 int err;
765
766 err = mlx5e_netdev_init(netdev, priv, mdev, profile, ppriv);
767 if (err)
768 return err;
769
770 priv->channels.params.num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
771
772 mlx5e_build_rep_params(netdev);
773 mlx5e_build_rep_netdev(netdev);
774
775 mlx5e_timestamp_init(priv);
776
777 return 0;
778 }
779
mlx5e_cleanup_rep(struct mlx5e_priv * priv)780 static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
781 {
782 mlx5e_netdev_cleanup(priv->netdev, priv);
783 }
784
mlx5e_create_rep_ttc_table(struct mlx5e_priv * priv)785 static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
786 {
787 struct mlx5e_rep_priv *rpriv = priv->ppriv;
788 struct mlx5_eswitch_rep *rep = rpriv->rep;
789 struct ttc_params ttc_params = {};
790 int tt, err;
791
792 priv->fs.ns = mlx5_get_flow_namespace(priv->mdev,
793 MLX5_FLOW_NAMESPACE_KERNEL);
794
795 /* The inner_ttc in the ttc params is intentionally not set */
796 ttc_params.any_tt_tirn = priv->direct_tir[0].tirn;
797 mlx5e_set_ttc_ft_params(&ttc_params);
798
799 if (rep->vport != MLX5_VPORT_UPLINK)
800 /* To give uplik rep TTC a lower level for chaining from root ft */
801 ttc_params.ft_attr.level = MLX5E_TTC_FT_LEVEL + 1;
802
803 for (tt = 0; tt < MLX5E_NUM_INDIR_TIRS; tt++)
804 ttc_params.indir_tirn[tt] = priv->indir_tir[tt].tirn;
805
806 err = mlx5e_create_ttc_table(priv, &ttc_params, &priv->fs.ttc);
807 if (err) {
808 netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n", err);
809 return err;
810 }
811 return 0;
812 }
813
mlx5e_create_rep_root_ft(struct mlx5e_priv * priv)814 static int mlx5e_create_rep_root_ft(struct mlx5e_priv *priv)
815 {
816 struct mlx5e_rep_priv *rpriv = priv->ppriv;
817 struct mlx5_eswitch_rep *rep = rpriv->rep;
818 struct mlx5_flow_table_attr ft_attr = {};
819 struct mlx5_flow_namespace *ns;
820 int err = 0;
821
822 if (rep->vport != MLX5_VPORT_UPLINK) {
823 /* non uplik reps will skip any bypass tables and go directly to
824 * their own ttc
825 */
826 rpriv->root_ft = priv->fs.ttc.ft.t;
827 return 0;
828 }
829
830 /* uplink root ft will be used to auto chain, to ethtool or ttc tables */
831 ns = mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_OFFLOADS);
832 if (!ns) {
833 netdev_err(priv->netdev, "Failed to get reps offloads namespace\n");
834 return -EOPNOTSUPP;
835 }
836
837 ft_attr.max_fte = 0; /* Empty table, miss rule will always point to next table */
838 ft_attr.prio = 1;
839 ft_attr.level = 1;
840
841 rpriv->root_ft = mlx5_create_flow_table(ns, &ft_attr);
842 if (IS_ERR(rpriv->root_ft)) {
843 err = PTR_ERR(rpriv->root_ft);
844 rpriv->root_ft = NULL;
845 }
846
847 return err;
848 }
849
mlx5e_destroy_rep_root_ft(struct mlx5e_priv * priv)850 static void mlx5e_destroy_rep_root_ft(struct mlx5e_priv *priv)
851 {
852 struct mlx5e_rep_priv *rpriv = priv->ppriv;
853 struct mlx5_eswitch_rep *rep = rpriv->rep;
854
855 if (rep->vport != MLX5_VPORT_UPLINK)
856 return;
857 mlx5_destroy_flow_table(rpriv->root_ft);
858 }
859
mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv * priv)860 static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
861 {
862 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
863 struct mlx5e_rep_priv *rpriv = priv->ppriv;
864 struct mlx5_eswitch_rep *rep = rpriv->rep;
865 struct mlx5_flow_handle *flow_rule;
866 struct mlx5_flow_destination dest;
867
868 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
869 dest.ft = rpriv->root_ft;
870
871 flow_rule = mlx5_eswitch_create_vport_rx_rule(esw, rep->vport, &dest);
872 if (IS_ERR(flow_rule))
873 return PTR_ERR(flow_rule);
874 rpriv->vport_rx_rule = flow_rule;
875 return 0;
876 }
877
rep_vport_rx_rule_destroy(struct mlx5e_priv * priv)878 static void rep_vport_rx_rule_destroy(struct mlx5e_priv *priv)
879 {
880 struct mlx5e_rep_priv *rpriv = priv->ppriv;
881
882 if (!rpriv->vport_rx_rule)
883 return;
884
885 mlx5_del_flow_rules(rpriv->vport_rx_rule);
886 rpriv->vport_rx_rule = NULL;
887 }
888
mlx5e_rep_bond_update(struct mlx5e_priv * priv,bool cleanup)889 int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup)
890 {
891 rep_vport_rx_rule_destroy(priv);
892
893 return cleanup ? 0 : mlx5e_create_rep_vport_rx_rule(priv);
894 }
895
mlx5e_init_rep_rx(struct mlx5e_priv * priv)896 static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
897 {
898 struct mlx5_core_dev *mdev = priv->mdev;
899 int err;
900
901 mlx5e_init_l2_addr(priv);
902
903 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
904 if (err) {
905 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
906 return err;
907 }
908
909 err = mlx5e_create_indirect_rqt(priv);
910 if (err)
911 goto err_close_drop_rq;
912
913 err = mlx5e_create_direct_rqts(priv, priv->direct_tir);
914 if (err)
915 goto err_destroy_indirect_rqts;
916
917 err = mlx5e_create_indirect_tirs(priv, false);
918 if (err)
919 goto err_destroy_direct_rqts;
920
921 err = mlx5e_create_direct_tirs(priv, priv->direct_tir);
922 if (err)
923 goto err_destroy_indirect_tirs;
924
925 err = mlx5e_create_rep_ttc_table(priv);
926 if (err)
927 goto err_destroy_direct_tirs;
928
929 err = mlx5e_create_rep_root_ft(priv);
930 if (err)
931 goto err_destroy_ttc_table;
932
933 err = mlx5e_create_rep_vport_rx_rule(priv);
934 if (err)
935 goto err_destroy_root_ft;
936
937 mlx5e_ethtool_init_steering(priv);
938
939 return 0;
940
941 err_destroy_root_ft:
942 mlx5e_destroy_rep_root_ft(priv);
943 err_destroy_ttc_table:
944 mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
945 err_destroy_direct_tirs:
946 mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
947 err_destroy_indirect_tirs:
948 mlx5e_destroy_indirect_tirs(priv);
949 err_destroy_direct_rqts:
950 mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
951 err_destroy_indirect_rqts:
952 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
953 err_close_drop_rq:
954 mlx5e_close_drop_rq(&priv->drop_rq);
955 return err;
956 }
957
mlx5e_cleanup_rep_rx(struct mlx5e_priv * priv)958 static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
959 {
960 mlx5e_ethtool_cleanup_steering(priv);
961 rep_vport_rx_rule_destroy(priv);
962 mlx5e_destroy_rep_root_ft(priv);
963 mlx5e_destroy_ttc_table(priv, &priv->fs.ttc);
964 mlx5e_destroy_direct_tirs(priv, priv->direct_tir);
965 mlx5e_destroy_indirect_tirs(priv);
966 mlx5e_destroy_direct_rqts(priv, priv->direct_tir);
967 mlx5e_destroy_rqt(priv, &priv->indir_rqt);
968 mlx5e_close_drop_rq(&priv->drop_rq);
969 }
970
mlx5e_init_ul_rep_rx(struct mlx5e_priv * priv)971 static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
972 {
973 mlx5e_create_q_counters(priv);
974 return mlx5e_init_rep_rx(priv);
975 }
976
mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv * priv)977 static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
978 {
979 mlx5e_cleanup_rep_rx(priv);
980 mlx5e_destroy_q_counters(priv);
981 }
982
mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)983 static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
984 {
985 struct mlx5_rep_uplink_priv *uplink_priv;
986 struct net_device *netdev;
987 struct mlx5e_priv *priv;
988 int err;
989
990 netdev = rpriv->netdev;
991 priv = netdev_priv(netdev);
992 uplink_priv = &rpriv->uplink_priv;
993
994 err = mlx5e_rep_tc_init(rpriv);
995 if (err)
996 return err;
997
998 mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
999
1000 mlx5e_rep_bond_init(rpriv);
1001 err = mlx5e_rep_tc_netdevice_event_register(rpriv);
1002 if (err) {
1003 mlx5_core_err(priv->mdev, "Failed to register netdev notifier, err: %d\n",
1004 err);
1005 goto err_event_reg;
1006 }
1007
1008 return 0;
1009
1010 err_event_reg:
1011 mlx5e_rep_bond_cleanup(rpriv);
1012 mlx5e_rep_tc_cleanup(rpriv);
1013 return err;
1014 }
1015
mlx5e_init_rep_tx(struct mlx5e_priv * priv)1016 static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
1017 {
1018 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1019 int err;
1020
1021 err = mlx5e_create_tises(priv);
1022 if (err) {
1023 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
1024 return err;
1025 }
1026
1027 if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
1028 err = mlx5e_init_uplink_rep_tx(rpriv);
1029 if (err)
1030 goto destroy_tises;
1031 }
1032
1033 return 0;
1034
1035 destroy_tises:
1036 mlx5e_destroy_tises(priv);
1037 return err;
1038 }
1039
mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)1040 static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
1041 {
1042 mlx5e_rep_tc_netdevice_event_unregister(rpriv);
1043 mlx5e_rep_bond_cleanup(rpriv);
1044 mlx5e_rep_tc_cleanup(rpriv);
1045 }
1046
mlx5e_cleanup_rep_tx(struct mlx5e_priv * priv)1047 static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
1048 {
1049 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1050
1051 mlx5e_destroy_tises(priv);
1052
1053 if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
1054 mlx5e_cleanup_uplink_rep_tx(rpriv);
1055 }
1056
mlx5e_rep_enable(struct mlx5e_priv * priv)1057 static void mlx5e_rep_enable(struct mlx5e_priv *priv)
1058 {
1059 mlx5e_set_netdev_mtu_boundaries(priv);
1060 }
1061
mlx5e_update_rep_rx(struct mlx5e_priv * priv)1062 static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
1063 {
1064 return 0;
1065 }
1066
uplink_rep_async_event(struct notifier_block * nb,unsigned long event,void * data)1067 static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
1068 {
1069 struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
1070
1071 if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
1072 struct mlx5_eqe *eqe = data;
1073
1074 switch (eqe->sub_type) {
1075 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
1076 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
1077 queue_work(priv->wq, &priv->update_carrier_work);
1078 break;
1079 default:
1080 return NOTIFY_DONE;
1081 }
1082
1083 return NOTIFY_OK;
1084 }
1085
1086 if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
1087 return mlx5e_rep_tc_event_port_affinity(priv);
1088
1089 return NOTIFY_DONE;
1090 }
1091
mlx5e_uplink_rep_enable(struct mlx5e_priv * priv)1092 static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
1093 {
1094 struct net_device *netdev = priv->netdev;
1095 struct mlx5_core_dev *mdev = priv->mdev;
1096 u16 max_mtu;
1097
1098 netdev->min_mtu = ETH_MIN_MTU;
1099 mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
1100 netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
1101 mlx5e_set_dev_port_mtu(priv);
1102
1103 mlx5e_rep_tc_enable(priv);
1104
1105 mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
1106 0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
1107 mlx5_lag_add(mdev, netdev);
1108 priv->events_nb.notifier_call = uplink_rep_async_event;
1109 mlx5_notifier_register(mdev, &priv->events_nb);
1110 mlx5e_dcbnl_initialize(priv);
1111 mlx5e_dcbnl_init_app(priv);
1112 }
1113
mlx5e_uplink_rep_disable(struct mlx5e_priv * priv)1114 static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
1115 {
1116 struct mlx5_core_dev *mdev = priv->mdev;
1117
1118 mlx5e_dcbnl_delete_app(priv);
1119 mlx5_notifier_unregister(mdev, &priv->events_nb);
1120 mlx5e_rep_tc_disable(priv);
1121 mlx5_lag_remove(mdev);
1122 }
1123
1124 static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);
1125 static MLX5E_DEFINE_STATS_GRP(vport_rep, MLX5E_NDO_UPDATE_STATS);
1126
1127 /* The stats groups order is opposite to the update_stats() order calls */
1128 static mlx5e_stats_grp_t mlx5e_rep_stats_grps[] = {
1129 &MLX5E_STATS_GRP(sw_rep),
1130 &MLX5E_STATS_GRP(vport_rep),
1131 };
1132
mlx5e_rep_stats_grps_num(struct mlx5e_priv * priv)1133 static unsigned int mlx5e_rep_stats_grps_num(struct mlx5e_priv *priv)
1134 {
1135 return ARRAY_SIZE(mlx5e_rep_stats_grps);
1136 }
1137
1138 /* The stats groups order is opposite to the update_stats() order calls */
1139 static mlx5e_stats_grp_t mlx5e_ul_rep_stats_grps[] = {
1140 &MLX5E_STATS_GRP(sw),
1141 &MLX5E_STATS_GRP(qcnt),
1142 &MLX5E_STATS_GRP(vnic_env),
1143 &MLX5E_STATS_GRP(vport),
1144 &MLX5E_STATS_GRP(802_3),
1145 &MLX5E_STATS_GRP(2863),
1146 &MLX5E_STATS_GRP(2819),
1147 &MLX5E_STATS_GRP(phy),
1148 &MLX5E_STATS_GRP(eth_ext),
1149 &MLX5E_STATS_GRP(pcie),
1150 &MLX5E_STATS_GRP(per_prio),
1151 &MLX5E_STATS_GRP(pme),
1152 &MLX5E_STATS_GRP(channels),
1153 &MLX5E_STATS_GRP(per_port_buff_congest),
1154 };
1155
mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv * priv)1156 static unsigned int mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv *priv)
1157 {
1158 return ARRAY_SIZE(mlx5e_ul_rep_stats_grps);
1159 }
1160
1161 static const struct mlx5e_profile mlx5e_rep_profile = {
1162 .init = mlx5e_init_rep,
1163 .cleanup = mlx5e_cleanup_rep,
1164 .init_rx = mlx5e_init_rep_rx,
1165 .cleanup_rx = mlx5e_cleanup_rep_rx,
1166 .init_tx = mlx5e_init_rep_tx,
1167 .cleanup_tx = mlx5e_cleanup_rep_tx,
1168 .enable = mlx5e_rep_enable,
1169 .update_rx = mlx5e_update_rep_rx,
1170 .update_stats = mlx5e_stats_update_ndo_stats,
1171 .rx_handlers = &mlx5e_rx_handlers_rep,
1172 .max_tc = 1,
1173 .rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
1174 .stats_grps = mlx5e_rep_stats_grps,
1175 .stats_grps_num = mlx5e_rep_stats_grps_num,
1176 };
1177
1178 static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
1179 .init = mlx5e_init_rep,
1180 .cleanup = mlx5e_cleanup_rep,
1181 .init_rx = mlx5e_init_ul_rep_rx,
1182 .cleanup_rx = mlx5e_cleanup_ul_rep_rx,
1183 .init_tx = mlx5e_init_rep_tx,
1184 .cleanup_tx = mlx5e_cleanup_rep_tx,
1185 .enable = mlx5e_uplink_rep_enable,
1186 .disable = mlx5e_uplink_rep_disable,
1187 .update_rx = mlx5e_update_rep_rx,
1188 .update_stats = mlx5e_stats_update_ndo_stats,
1189 .update_carrier = mlx5e_update_carrier,
1190 .rx_handlers = &mlx5e_rx_handlers_rep,
1191 .max_tc = MLX5E_MAX_NUM_TC,
1192 .rq_groups = MLX5E_NUM_RQ_GROUPS(REGULAR),
1193 .stats_grps = mlx5e_ul_rep_stats_grps,
1194 .stats_grps_num = mlx5e_ul_rep_stats_grps_num,
1195 };
1196
1197 /* e-Switch vport representors */
1198 static int
mlx5e_vport_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1199 mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1200 {
1201 const struct mlx5e_profile *profile;
1202 struct mlx5e_rep_priv *rpriv;
1203 struct devlink_port *dl_port;
1204 struct net_device *netdev;
1205 int nch, err;
1206
1207 rpriv = kzalloc(sizeof(*rpriv), GFP_KERNEL);
1208 if (!rpriv)
1209 return -ENOMEM;
1210
1211 /* rpriv->rep to be looked up when profile->init() is called */
1212 rpriv->rep = rep;
1213
1214 nch = mlx5e_get_max_num_channels(dev);
1215 profile = (rep->vport == MLX5_VPORT_UPLINK) ?
1216 &mlx5e_uplink_rep_profile : &mlx5e_rep_profile;
1217 netdev = mlx5e_create_netdev(dev, profile, nch, rpriv);
1218 if (!netdev) {
1219 mlx5_core_warn(dev,
1220 "Failed to create representor netdev for vport %d\n",
1221 rep->vport);
1222 kfree(rpriv);
1223 return -EINVAL;
1224 }
1225
1226 dev_net_set(netdev, mlx5_core_net(dev));
1227 rpriv->netdev = netdev;
1228 rep->rep_data[REP_ETH].priv = rpriv;
1229 INIT_LIST_HEAD(&rpriv->vport_sqs_list);
1230
1231 if (rep->vport == MLX5_VPORT_UPLINK) {
1232 err = mlx5e_create_mdev_resources(dev);
1233 if (err)
1234 goto err_destroy_netdev;
1235 }
1236
1237 err = mlx5e_attach_netdev(netdev_priv(netdev));
1238 if (err) {
1239 netdev_warn(netdev,
1240 "Failed to attach representor netdev for vport %d\n",
1241 rep->vport);
1242 goto err_destroy_mdev_resources;
1243 }
1244
1245 err = mlx5e_rep_neigh_init(rpriv);
1246 if (err) {
1247 netdev_warn(netdev,
1248 "Failed to initialized neighbours handling for vport %d\n",
1249 rep->vport);
1250 goto err_detach_netdev;
1251 }
1252
1253 err = register_netdev(netdev);
1254 if (err) {
1255 netdev_warn(netdev,
1256 "Failed to register representor netdev for vport %d\n",
1257 rep->vport);
1258 goto err_neigh_cleanup;
1259 }
1260
1261 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1262 if (dl_port)
1263 devlink_port_type_eth_set(dl_port, netdev);
1264 return 0;
1265
1266 err_neigh_cleanup:
1267 mlx5e_rep_neigh_cleanup(rpriv);
1268
1269 err_detach_netdev:
1270 mlx5e_detach_netdev(netdev_priv(netdev));
1271
1272 err_destroy_mdev_resources:
1273 if (rep->vport == MLX5_VPORT_UPLINK)
1274 mlx5e_destroy_mdev_resources(dev);
1275
1276 err_destroy_netdev:
1277 mlx5e_destroy_netdev(netdev_priv(netdev));
1278 kfree(rpriv);
1279 return err;
1280 }
1281
1282 static void
mlx5e_vport_rep_unload(struct mlx5_eswitch_rep * rep)1283 mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
1284 {
1285 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1286 struct net_device *netdev = rpriv->netdev;
1287 struct mlx5e_priv *priv = netdev_priv(netdev);
1288 struct mlx5_core_dev *dev = priv->mdev;
1289 struct devlink_port *dl_port;
1290 void *ppriv = priv->ppriv;
1291
1292 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1293 if (dl_port)
1294 devlink_port_type_clear(dl_port);
1295 unregister_netdev(netdev);
1296 mlx5e_rep_neigh_cleanup(rpriv);
1297 mlx5e_detach_netdev(priv);
1298 if (rep->vport == MLX5_VPORT_UPLINK)
1299 mlx5e_destroy_mdev_resources(priv->mdev);
1300 mlx5e_destroy_netdev(priv);
1301 kfree(ppriv); /* mlx5e_rep_priv */
1302 }
1303
mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep * rep)1304 static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
1305 {
1306 struct mlx5e_rep_priv *rpriv;
1307
1308 rpriv = mlx5e_rep_to_rep_priv(rep);
1309
1310 return rpriv->netdev;
1311 }
1312
1313 static const struct mlx5_eswitch_rep_ops rep_ops = {
1314 .load = mlx5e_vport_rep_load,
1315 .unload = mlx5e_vport_rep_unload,
1316 .get_proto_dev = mlx5e_vport_rep_get_proto_dev
1317 };
1318
mlx5e_rep_register_vport_reps(struct mlx5_core_dev * mdev)1319 void mlx5e_rep_register_vport_reps(struct mlx5_core_dev *mdev)
1320 {
1321 struct mlx5_eswitch *esw = mdev->priv.eswitch;
1322
1323 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
1324 }
1325
mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev * mdev)1326 void mlx5e_rep_unregister_vport_reps(struct mlx5_core_dev *mdev)
1327 {
1328 struct mlx5_eswitch *esw = mdev->priv.eswitch;
1329
1330 mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
1331 }
1332