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 <linux/mlx5/fs.h>
34 #include <net/switchdev.h>
35 #include <net/pkt_cls.h>
36 #include <net/act_api.h>
37 #include <net/devlink.h>
38 #include <net/ipv6_stubs.h>
39
40 #include "eswitch.h"
41 #include "en.h"
42 #include "en_rep.h"
43 #include "en/params.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 "en/rep/bridge.h"
49 #include "en/devlink.h"
50 #include "fs_core.h"
51 #include "lib/mlx5.h"
52 #include "lib/devcom.h"
53 #include "lib/vxlan.h"
54 #define CREATE_TRACE_POINTS
55 #include "diag/en_rep_tracepoint.h"
56 #include "en_accel/ipsec.h"
57 #include "en/tc/int_port.h"
58 #include "en/ptp.h"
59 #include "en/fs_ethtool.h"
60
61 #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
62 max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
63 #define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
64
65 static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
66
mlx5e_rep_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)67 static void mlx5e_rep_get_drvinfo(struct net_device *dev,
68 struct ethtool_drvinfo *drvinfo)
69 {
70 struct mlx5e_priv *priv = netdev_priv(dev);
71 struct mlx5_core_dev *mdev = priv->mdev;
72
73 strscpy(drvinfo->driver, mlx5e_rep_driver_name,
74 sizeof(drvinfo->driver));
75 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
76 "%d.%d.%04d (%.16s)",
77 fw_rev_maj(mdev), fw_rev_min(mdev),
78 fw_rev_sub(mdev), mdev->board_id);
79 }
80
81 static const struct counter_desc sw_rep_stats_desc[] = {
82 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
83 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
84 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
85 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
86 };
87
88 struct vport_stats {
89 u64 vport_rx_packets;
90 u64 vport_tx_packets;
91 u64 vport_rx_bytes;
92 u64 vport_tx_bytes;
93 };
94
95 static const struct counter_desc vport_rep_stats_desc[] = {
96 { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_packets) },
97 { MLX5E_DECLARE_STAT(struct vport_stats, vport_rx_bytes) },
98 { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_packets) },
99 { MLX5E_DECLARE_STAT(struct vport_stats, vport_tx_bytes) },
100 };
101
102 #define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
103 #define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
104
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)105 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)
106 {
107 return NUM_VPORT_REP_SW_COUNTERS;
108 }
109
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)110 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)
111 {
112 int i;
113
114 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
115 strcpy(data + (idx++) * ETH_GSTRING_LEN,
116 sw_rep_stats_desc[i].format);
117 return idx;
118 }
119
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)120 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)
121 {
122 int i;
123
124 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
125 data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.sw,
126 sw_rep_stats_desc, i);
127 return idx;
128 }
129
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)130 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)
131 {
132 struct mlx5e_sw_stats *s = &priv->stats.sw;
133 struct rtnl_link_stats64 stats64 = {};
134
135 memset(s, 0, sizeof(*s));
136 mlx5e_fold_sw_stats64(priv, &stats64);
137
138 s->rx_packets = stats64.rx_packets;
139 s->rx_bytes = stats64.rx_bytes;
140 s->tx_packets = stats64.tx_packets;
141 s->tx_bytes = stats64.tx_bytes;
142 s->tx_queue_dropped = stats64.tx_dropped;
143 }
144
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)145 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)
146 {
147 return NUM_VPORT_REP_HW_COUNTERS;
148 }
149
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)150 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)
151 {
152 int i;
153
154 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
155 strcpy(data + (idx++) * ETH_GSTRING_LEN, vport_rep_stats_desc[i].format);
156 return idx;
157 }
158
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)159 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)
160 {
161 int i;
162
163 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
164 data[idx++] = MLX5E_READ_CTR64_CPU(&priv->stats.vf_vport,
165 vport_rep_stats_desc, i);
166 return idx;
167 }
168
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)169 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)
170 {
171 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
172 struct mlx5e_rep_priv *rpriv = priv->ppriv;
173 struct mlx5_eswitch_rep *rep = rpriv->rep;
174 struct rtnl_link_stats64 *vport_stats;
175 struct ifla_vf_stats vf_stats;
176 int err;
177
178 err = mlx5_eswitch_get_vport_stats(esw, rep->vport, &vf_stats);
179 if (err) {
180 netdev_warn(priv->netdev, "vport %d error %d reading stats\n",
181 rep->vport, err);
182 return;
183 }
184
185 vport_stats = &priv->stats.vf_vport;
186 /* flip tx/rx as we are reporting the counters for the switch vport */
187 vport_stats->rx_packets = vf_stats.tx_packets;
188 vport_stats->rx_bytes = vf_stats.tx_bytes;
189 vport_stats->tx_packets = vf_stats.rx_packets;
190 vport_stats->tx_bytes = vf_stats.rx_bytes;
191 }
192
mlx5e_rep_get_strings(struct net_device * dev,u32 stringset,uint8_t * data)193 static void mlx5e_rep_get_strings(struct net_device *dev,
194 u32 stringset, uint8_t *data)
195 {
196 struct mlx5e_priv *priv = netdev_priv(dev);
197
198 switch (stringset) {
199 case ETH_SS_STATS:
200 mlx5e_stats_fill_strings(priv, data);
201 break;
202 }
203 }
204
mlx5e_rep_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)205 static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
206 struct ethtool_stats *stats, u64 *data)
207 {
208 struct mlx5e_priv *priv = netdev_priv(dev);
209
210 mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
211 }
212
mlx5e_rep_get_sset_count(struct net_device * dev,int sset)213 static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
214 {
215 struct mlx5e_priv *priv = netdev_priv(dev);
216
217 switch (sset) {
218 case ETH_SS_STATS:
219 return mlx5e_stats_total_num(priv);
220 default:
221 return -EOPNOTSUPP;
222 }
223 }
224
225 static void
mlx5e_rep_get_ringparam(struct net_device * dev,struct ethtool_ringparam * param,struct kernel_ethtool_ringparam * kernel_param,struct netlink_ext_ack * extack)226 mlx5e_rep_get_ringparam(struct net_device *dev,
227 struct ethtool_ringparam *param,
228 struct kernel_ethtool_ringparam *kernel_param,
229 struct netlink_ext_ack *extack)
230 {
231 struct mlx5e_priv *priv = netdev_priv(dev);
232
233 mlx5e_ethtool_get_ringparam(priv, param, kernel_param);
234 }
235
236 static int
mlx5e_rep_set_ringparam(struct net_device * dev,struct ethtool_ringparam * param,struct kernel_ethtool_ringparam * kernel_param,struct netlink_ext_ack * extack)237 mlx5e_rep_set_ringparam(struct net_device *dev,
238 struct ethtool_ringparam *param,
239 struct kernel_ethtool_ringparam *kernel_param,
240 struct netlink_ext_ack *extack)
241 {
242 struct mlx5e_priv *priv = netdev_priv(dev);
243
244 return mlx5e_ethtool_set_ringparam(priv, param);
245 }
246
mlx5e_rep_get_channels(struct net_device * dev,struct ethtool_channels * ch)247 static void mlx5e_rep_get_channels(struct net_device *dev,
248 struct ethtool_channels *ch)
249 {
250 struct mlx5e_priv *priv = netdev_priv(dev);
251
252 mlx5e_ethtool_get_channels(priv, ch);
253 }
254
mlx5e_rep_set_channels(struct net_device * dev,struct ethtool_channels * ch)255 static int mlx5e_rep_set_channels(struct net_device *dev,
256 struct ethtool_channels *ch)
257 {
258 struct mlx5e_priv *priv = netdev_priv(dev);
259
260 return mlx5e_ethtool_set_channels(priv, ch);
261 }
262
mlx5e_rep_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)263 static int mlx5e_rep_get_coalesce(struct net_device *netdev,
264 struct ethtool_coalesce *coal,
265 struct kernel_ethtool_coalesce *kernel_coal,
266 struct netlink_ext_ack *extack)
267 {
268 struct mlx5e_priv *priv = netdev_priv(netdev);
269
270 return mlx5e_ethtool_get_coalesce(priv, coal, kernel_coal);
271 }
272
mlx5e_rep_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)273 static int mlx5e_rep_set_coalesce(struct net_device *netdev,
274 struct ethtool_coalesce *coal,
275 struct kernel_ethtool_coalesce *kernel_coal,
276 struct netlink_ext_ack *extack)
277 {
278 struct mlx5e_priv *priv = netdev_priv(netdev);
279
280 return mlx5e_ethtool_set_coalesce(priv, coal, kernel_coal, extack);
281 }
282
mlx5e_rep_get_rxfh_key_size(struct net_device * netdev)283 static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
284 {
285 struct mlx5e_priv *priv = netdev_priv(netdev);
286
287 return mlx5e_ethtool_get_rxfh_key_size(priv);
288 }
289
mlx5e_rep_get_rxfh_indir_size(struct net_device * netdev)290 static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
291 {
292 struct mlx5e_priv *priv = netdev_priv(netdev);
293
294 return mlx5e_ethtool_get_rxfh_indir_size(priv);
295 }
296
297 static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
298 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
299 ETHTOOL_COALESCE_MAX_FRAMES |
300 ETHTOOL_COALESCE_USE_ADAPTIVE,
301 .get_drvinfo = mlx5e_rep_get_drvinfo,
302 .get_link = ethtool_op_get_link,
303 .get_strings = mlx5e_rep_get_strings,
304 .get_sset_count = mlx5e_rep_get_sset_count,
305 .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
306 .get_ringparam = mlx5e_rep_get_ringparam,
307 .set_ringparam = mlx5e_rep_set_ringparam,
308 .get_channels = mlx5e_rep_get_channels,
309 .set_channels = mlx5e_rep_set_channels,
310 .get_coalesce = mlx5e_rep_get_coalesce,
311 .set_coalesce = mlx5e_rep_set_coalesce,
312 .get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
313 .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
314 };
315
mlx5e_sqs2vport_stop(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep)316 static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
317 struct mlx5_eswitch_rep *rep)
318 {
319 struct mlx5e_rep_sq *rep_sq, *tmp;
320 struct mlx5e_rep_priv *rpriv;
321
322 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
323 return;
324
325 rpriv = mlx5e_rep_to_rep_priv(rep);
326 list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
327 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
328 if (rep_sq->send_to_vport_rule_peer)
329 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule_peer);
330 list_del(&rep_sq->list);
331 kfree(rep_sq);
332 }
333 }
334
mlx5e_sqs2vport_start(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,u32 * sqns_array,int sqns_num)335 static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
336 struct mlx5_eswitch_rep *rep,
337 u32 *sqns_array, int sqns_num)
338 {
339 struct mlx5_eswitch *peer_esw = NULL;
340 struct mlx5_flow_handle *flow_rule;
341 struct mlx5e_rep_priv *rpriv;
342 struct mlx5e_rep_sq *rep_sq;
343 int err;
344 int i;
345
346 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
347 return 0;
348
349 rpriv = mlx5e_rep_to_rep_priv(rep);
350 if (mlx5_devcom_is_paired(esw->dev->priv.devcom, MLX5_DEVCOM_ESW_OFFLOADS))
351 peer_esw = mlx5_devcom_get_peer_data(esw->dev->priv.devcom,
352 MLX5_DEVCOM_ESW_OFFLOADS);
353
354 for (i = 0; i < sqns_num; i++) {
355 rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
356 if (!rep_sq) {
357 err = -ENOMEM;
358 goto out_err;
359 }
360
361 /* Add re-inject rule to the PF/representor sqs */
362 flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep,
363 sqns_array[i]);
364 if (IS_ERR(flow_rule)) {
365 err = PTR_ERR(flow_rule);
366 kfree(rep_sq);
367 goto out_err;
368 }
369 rep_sq->send_to_vport_rule = flow_rule;
370 rep_sq->sqn = sqns_array[i];
371
372 if (peer_esw) {
373 flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw,
374 rep, sqns_array[i]);
375 if (IS_ERR(flow_rule)) {
376 err = PTR_ERR(flow_rule);
377 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
378 kfree(rep_sq);
379 goto out_err;
380 }
381 rep_sq->send_to_vport_rule_peer = flow_rule;
382 }
383
384 list_add(&rep_sq->list, &rpriv->vport_sqs_list);
385 }
386
387 if (peer_esw)
388 mlx5_devcom_release_peer_data(esw->dev->priv.devcom, MLX5_DEVCOM_ESW_OFFLOADS);
389
390 return 0;
391
392 out_err:
393 mlx5e_sqs2vport_stop(esw, rep);
394
395 if (peer_esw)
396 mlx5_devcom_release_peer_data(esw->dev->priv.devcom, MLX5_DEVCOM_ESW_OFFLOADS);
397
398 return err;
399 }
400
401 static int
mlx5e_add_sqs_fwd_rules(struct mlx5e_priv * priv)402 mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
403 {
404 int sqs_per_channel = mlx5e_get_dcb_num_tc(&priv->channels.params);
405 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
406 bool is_uplink_rep = mlx5e_is_uplink_rep(priv);
407 struct mlx5e_rep_priv *rpriv = priv->ppriv;
408 struct mlx5_eswitch_rep *rep = rpriv->rep;
409 int n, tc, nch, num_sqs = 0;
410 struct mlx5e_channel *c;
411 int err = -ENOMEM;
412 bool ptp_sq;
413 u32 *sqs;
414
415 ptp_sq = !!(priv->channels.ptp &&
416 MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_PORT_TS));
417 nch = priv->channels.num + ptp_sq;
418 /* +2 for xdpsqs, they don't exist on the ptp channel but will not be
419 * counted for by num_sqs.
420 */
421 if (is_uplink_rep)
422 sqs_per_channel += 2;
423
424 sqs = kvcalloc(nch * sqs_per_channel, sizeof(*sqs), GFP_KERNEL);
425 if (!sqs)
426 goto out;
427
428 for (n = 0; n < priv->channels.num; n++) {
429 c = priv->channels.c[n];
430 for (tc = 0; tc < c->num_tc; tc++)
431 sqs[num_sqs++] = c->sq[tc].sqn;
432
433 if (is_uplink_rep) {
434 if (c->xdp)
435 sqs[num_sqs++] = c->rq_xdpsq.sqn;
436
437 sqs[num_sqs++] = c->xdpsq.sqn;
438 }
439 }
440 if (ptp_sq) {
441 struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
442
443 for (tc = 0; tc < ptp_ch->num_tc; tc++)
444 sqs[num_sqs++] = ptp_ch->ptpsq[tc].txqsq.sqn;
445 }
446
447 err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
448 kvfree(sqs);
449
450 out:
451 if (err)
452 netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
453 return err;
454 }
455
456 static void
mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv * priv)457 mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
458 {
459 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
460 struct mlx5e_rep_priv *rpriv = priv->ppriv;
461 struct mlx5_eswitch_rep *rep = rpriv->rep;
462
463 mlx5e_sqs2vport_stop(esw, rep);
464 }
465
466 static int
mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv * priv)467 mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv *priv)
468 {
469 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
470 struct mlx5e_rep_priv *rpriv = priv->ppriv;
471 struct mlx5_eswitch_rep *rep = rpriv->rep;
472 struct mlx5_flow_handle *flow_rule;
473 struct mlx5_flow_group *g;
474
475 g = esw->fdb_table.offloads.send_to_vport_meta_grp;
476 if (!g)
477 return 0;
478
479 flow_rule = mlx5_eswitch_add_send_to_vport_meta_rule(esw, rep->vport);
480 if (IS_ERR(flow_rule))
481 return PTR_ERR(flow_rule);
482
483 rpriv->send_to_vport_meta_rule = flow_rule;
484
485 return 0;
486 }
487
488 static void
mlx5e_rep_del_meta_tunnel_rule(struct mlx5e_priv * priv)489 mlx5e_rep_del_meta_tunnel_rule(struct mlx5e_priv *priv)
490 {
491 struct mlx5e_rep_priv *rpriv = priv->ppriv;
492
493 if (rpriv->send_to_vport_meta_rule)
494 mlx5_eswitch_del_send_to_vport_meta_rule(rpriv->send_to_vport_meta_rule);
495 }
496
mlx5e_rep_activate_channels(struct mlx5e_priv * priv)497 void mlx5e_rep_activate_channels(struct mlx5e_priv *priv)
498 {
499 mlx5e_add_sqs_fwd_rules(priv);
500 mlx5e_rep_add_meta_tunnel_rule(priv);
501 }
502
mlx5e_rep_deactivate_channels(struct mlx5e_priv * priv)503 void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv)
504 {
505 mlx5e_rep_del_meta_tunnel_rule(priv);
506 mlx5e_remove_sqs_fwd_rules(priv);
507 }
508
mlx5e_rep_open(struct net_device * dev)509 static int mlx5e_rep_open(struct net_device *dev)
510 {
511 struct mlx5e_priv *priv = netdev_priv(dev);
512 struct mlx5e_rep_priv *rpriv = priv->ppriv;
513 struct mlx5_eswitch_rep *rep = rpriv->rep;
514 int err;
515
516 mutex_lock(&priv->state_lock);
517 err = mlx5e_open_locked(dev);
518 if (err)
519 goto unlock;
520
521 if (!mlx5_modify_vport_admin_state(priv->mdev,
522 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
523 rep->vport, 1,
524 MLX5_VPORT_ADMIN_STATE_UP))
525 netif_carrier_on(dev);
526
527 unlock:
528 mutex_unlock(&priv->state_lock);
529 return err;
530 }
531
mlx5e_rep_close(struct net_device * dev)532 static int mlx5e_rep_close(struct net_device *dev)
533 {
534 struct mlx5e_priv *priv = netdev_priv(dev);
535 struct mlx5e_rep_priv *rpriv = priv->ppriv;
536 struct mlx5_eswitch_rep *rep = rpriv->rep;
537 int ret;
538
539 mutex_lock(&priv->state_lock);
540 mlx5_modify_vport_admin_state(priv->mdev,
541 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
542 rep->vport, 1,
543 MLX5_VPORT_ADMIN_STATE_DOWN);
544 ret = mlx5e_close_locked(dev);
545 mutex_unlock(&priv->state_lock);
546 return ret;
547 }
548
mlx5e_is_uplink_rep(struct mlx5e_priv * priv)549 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
550 {
551 struct mlx5e_rep_priv *rpriv = priv->ppriv;
552 struct mlx5_eswitch_rep *rep;
553
554 if (!MLX5_ESWITCH_MANAGER(priv->mdev))
555 return false;
556
557 if (!rpriv) /* non vport rep mlx5e instances don't use this field */
558 return false;
559
560 rep = rpriv->rep;
561 return (rep->vport == MLX5_VPORT_UPLINK);
562 }
563
mlx5e_rep_has_offload_stats(const struct net_device * dev,int attr_id)564 bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
565 {
566 switch (attr_id) {
567 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
568 return true;
569 }
570
571 return false;
572 }
573
574 static int
mlx5e_get_sw_stats64(const struct net_device * dev,struct rtnl_link_stats64 * stats)575 mlx5e_get_sw_stats64(const struct net_device *dev,
576 struct rtnl_link_stats64 *stats)
577 {
578 struct mlx5e_priv *priv = netdev_priv(dev);
579
580 mlx5e_fold_sw_stats64(priv, stats);
581 return 0;
582 }
583
mlx5e_rep_get_offload_stats(int attr_id,const struct net_device * dev,void * sp)584 int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
585 void *sp)
586 {
587 switch (attr_id) {
588 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
589 return mlx5e_get_sw_stats64(dev, sp);
590 }
591
592 return -EINVAL;
593 }
594
595 static void
mlx5e_rep_get_stats(struct net_device * dev,struct rtnl_link_stats64 * stats)596 mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
597 {
598 struct mlx5e_priv *priv = netdev_priv(dev);
599
600 /* update HW stats in background for next time */
601 mlx5e_queue_update_stats(priv);
602 memcpy(stats, &priv->stats.vf_vport, sizeof(*stats));
603 }
604
mlx5e_rep_change_mtu(struct net_device * netdev,int new_mtu)605 static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
606 {
607 return mlx5e_change_mtu(netdev, new_mtu, NULL);
608 }
609
mlx5e_rep_get_devlink_port(struct net_device * netdev)610 static struct devlink_port *mlx5e_rep_get_devlink_port(struct net_device *netdev)
611 {
612 struct mlx5e_priv *priv = netdev_priv(netdev);
613 struct mlx5e_rep_priv *rpriv = priv->ppriv;
614 struct mlx5_core_dev *dev = priv->mdev;
615
616 return mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
617 }
618
mlx5e_rep_change_carrier(struct net_device * dev,bool new_carrier)619 static int mlx5e_rep_change_carrier(struct net_device *dev, bool new_carrier)
620 {
621 struct mlx5e_priv *priv = netdev_priv(dev);
622 struct mlx5e_rep_priv *rpriv = priv->ppriv;
623 struct mlx5_eswitch_rep *rep = rpriv->rep;
624 int err;
625
626 if (new_carrier) {
627 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
628 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_UP);
629 if (err)
630 return err;
631 netif_carrier_on(dev);
632 } else {
633 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
634 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_DOWN);
635 if (err)
636 return err;
637 netif_carrier_off(dev);
638 }
639 return 0;
640 }
641
642 static const struct net_device_ops mlx5e_netdev_ops_rep = {
643 .ndo_open = mlx5e_rep_open,
644 .ndo_stop = mlx5e_rep_close,
645 .ndo_start_xmit = mlx5e_xmit,
646 .ndo_setup_tc = mlx5e_rep_setup_tc,
647 .ndo_get_devlink_port = mlx5e_rep_get_devlink_port,
648 .ndo_get_stats64 = mlx5e_rep_get_stats,
649 .ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
650 .ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
651 .ndo_change_mtu = mlx5e_rep_change_mtu,
652 .ndo_change_carrier = mlx5e_rep_change_carrier,
653 };
654
mlx5e_eswitch_uplink_rep(const struct net_device * netdev)655 bool mlx5e_eswitch_uplink_rep(const struct net_device *netdev)
656 {
657 return netdev->netdev_ops == &mlx5e_netdev_ops &&
658 mlx5e_is_uplink_rep(netdev_priv(netdev));
659 }
660
mlx5e_eswitch_vf_rep(const struct net_device * netdev)661 bool mlx5e_eswitch_vf_rep(const struct net_device *netdev)
662 {
663 return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
664 }
665
666 /* One indirect TIR set for outer. Inner not supported in reps. */
667 #define REP_NUM_INDIR_TIRS MLX5E_NUM_INDIR_TIRS
668
mlx5e_rep_max_nch_limit(struct mlx5_core_dev * mdev)669 static int mlx5e_rep_max_nch_limit(struct mlx5_core_dev *mdev)
670 {
671 int max_tir_num = 1 << MLX5_CAP_GEN(mdev, log_max_tir);
672 int num_vports = mlx5_eswitch_get_total_vports(mdev);
673
674 return (max_tir_num - mlx5e_get_pf_num_tirs(mdev)
675 - (num_vports * REP_NUM_INDIR_TIRS)) / num_vports;
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
692 params->num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
693 params->hard_mtu = MLX5E_ETH_HARD_MTU;
694 params->sw_mtu = netdev->mtu;
695
696 /* SQ */
697 if (rep->vport == MLX5_VPORT_UPLINK)
698 params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
699 else
700 params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
701
702 /* RQ */
703 mlx5e_build_rq_params(mdev, params);
704
705 /* CQ moderation params */
706 params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
707 mlx5e_set_rx_cq_mode_params(params, cq_period_mode);
708
709 params->mqprio.num_tc = 1;
710 params->tunneled_offload_en = false;
711 if (rep->vport != MLX5_VPORT_UPLINK)
712 params->vlan_strip_disable = true;
713
714 mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode);
715 }
716
mlx5e_build_rep_netdev(struct net_device * netdev,struct mlx5_core_dev * mdev)717 static void mlx5e_build_rep_netdev(struct net_device *netdev,
718 struct mlx5_core_dev *mdev)
719 {
720 SET_NETDEV_DEV(netdev, mdev->device);
721 netdev->netdev_ops = &mlx5e_netdev_ops_rep;
722 eth_hw_addr_random(netdev);
723 netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
724
725 netdev->watchdog_timeo = 15 * HZ;
726
727 #if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
728 netdev->hw_features |= NETIF_F_HW_TC;
729 #endif
730 netdev->hw_features |= NETIF_F_SG;
731 netdev->hw_features |= NETIF_F_IP_CSUM;
732 netdev->hw_features |= NETIF_F_IPV6_CSUM;
733 netdev->hw_features |= NETIF_F_GRO;
734 netdev->hw_features |= NETIF_F_TSO;
735 netdev->hw_features |= NETIF_F_TSO6;
736 netdev->hw_features |= NETIF_F_RXCSUM;
737
738 netdev->features |= netdev->hw_features;
739 netdev->features |= NETIF_F_NETNS_LOCAL;
740 }
741
mlx5e_init_rep(struct mlx5_core_dev * mdev,struct net_device * netdev)742 static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
743 struct net_device *netdev)
744 {
745 struct mlx5e_priv *priv = netdev_priv(netdev);
746
747 priv->fs = mlx5e_fs_init(priv->profile, mdev,
748 !test_bit(MLX5E_STATE_DESTROYING, &priv->state));
749 if (!priv->fs) {
750 netdev_err(priv->netdev, "FS allocation failed\n");
751 return -ENOMEM;
752 }
753
754 mlx5e_build_rep_params(netdev);
755 mlx5e_timestamp_init(priv);
756
757 return 0;
758 }
759
mlx5e_init_ul_rep(struct mlx5_core_dev * mdev,struct net_device * netdev)760 static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev,
761 struct net_device *netdev)
762 {
763 struct mlx5e_priv *priv = netdev_priv(netdev);
764 int err;
765
766 priv->fs = mlx5e_fs_init(priv->profile, mdev,
767 !test_bit(MLX5E_STATE_DESTROYING, &priv->state));
768 if (!priv->fs) {
769 netdev_err(priv->netdev, "FS allocation failed\n");
770 return -ENOMEM;
771 }
772
773 err = mlx5e_ipsec_init(priv);
774 if (err)
775 mlx5_core_err(mdev, "Uplink rep IPsec initialization failed, %d\n", err);
776
777 mlx5e_vxlan_set_netdev_info(priv);
778 mlx5e_build_rep_params(netdev);
779 mlx5e_timestamp_init(priv);
780 return 0;
781 }
782
mlx5e_cleanup_rep(struct mlx5e_priv * priv)783 static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
784 {
785 mlx5e_fs_cleanup(priv->fs);
786 mlx5e_ipsec_cleanup(priv);
787 }
788
mlx5e_create_rep_ttc_table(struct mlx5e_priv * priv)789 static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
790 {
791 struct mlx5e_rep_priv *rpriv = priv->ppriv;
792 struct mlx5_eswitch_rep *rep = rpriv->rep;
793 struct ttc_params ttc_params = {};
794 int err;
795
796 mlx5e_fs_set_ns(priv->fs,
797 mlx5_get_flow_namespace(priv->mdev,
798 MLX5_FLOW_NAMESPACE_KERNEL), false);
799
800 /* The inner_ttc in the ttc params is intentionally not set */
801 mlx5e_set_ttc_params(priv->fs, priv->rx_res, &ttc_params, false);
802
803 if (rep->vport != MLX5_VPORT_UPLINK)
804 /* To give uplik rep TTC a lower level for chaining from root ft */
805 ttc_params.ft_attr.level = MLX5E_TTC_FT_LEVEL + 1;
806
807 mlx5e_fs_set_ttc(priv->fs, mlx5_create_ttc_table(priv->mdev, &ttc_params), false);
808 if (IS_ERR(mlx5e_fs_get_ttc(priv->fs, false))) {
809 err = PTR_ERR(mlx5e_fs_get_ttc(priv->fs, false));
810 netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n",
811 err);
812 return err;
813 }
814 return 0;
815 }
816
mlx5e_create_rep_root_ft(struct mlx5e_priv * priv)817 static int mlx5e_create_rep_root_ft(struct mlx5e_priv *priv)
818 {
819 struct mlx5e_rep_priv *rpriv = priv->ppriv;
820 struct mlx5_eswitch_rep *rep = rpriv->rep;
821 struct mlx5_flow_table_attr ft_attr = {};
822 struct mlx5_flow_namespace *ns;
823 int err = 0;
824
825 if (rep->vport != MLX5_VPORT_UPLINK) {
826 /* non uplik reps will skip any bypass tables and go directly to
827 * their own ttc
828 */
829 rpriv->root_ft = mlx5_get_ttc_flow_table(mlx5e_fs_get_ttc(priv->fs, false));
830 return 0;
831 }
832
833 /* uplink root ft will be used to auto chain, to ethtool or ttc tables */
834 ns = mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_OFFLOADS);
835 if (!ns) {
836 netdev_err(priv->netdev, "Failed to get reps offloads namespace\n");
837 return -EOPNOTSUPP;
838 }
839
840 ft_attr.max_fte = 0; /* Empty table, miss rule will always point to next table */
841 ft_attr.prio = 1;
842 ft_attr.level = 1;
843
844 rpriv->root_ft = mlx5_create_flow_table(ns, &ft_attr);
845 if (IS_ERR(rpriv->root_ft)) {
846 err = PTR_ERR(rpriv->root_ft);
847 rpriv->root_ft = NULL;
848 }
849
850 return err;
851 }
852
mlx5e_destroy_rep_root_ft(struct mlx5e_priv * priv)853 static void mlx5e_destroy_rep_root_ft(struct mlx5e_priv *priv)
854 {
855 struct mlx5e_rep_priv *rpriv = priv->ppriv;
856 struct mlx5_eswitch_rep *rep = rpriv->rep;
857
858 if (rep->vport != MLX5_VPORT_UPLINK)
859 return;
860 mlx5_destroy_flow_table(rpriv->root_ft);
861 }
862
mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv * priv)863 static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
864 {
865 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
866 struct mlx5e_rep_priv *rpriv = priv->ppriv;
867 struct mlx5_eswitch_rep *rep = rpriv->rep;
868 struct mlx5_flow_handle *flow_rule;
869 struct mlx5_flow_destination dest;
870
871 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
872 dest.ft = rpriv->root_ft;
873
874 flow_rule = mlx5_eswitch_create_vport_rx_rule(esw, rep->vport, &dest);
875 if (IS_ERR(flow_rule))
876 return PTR_ERR(flow_rule);
877 rpriv->vport_rx_rule = flow_rule;
878 return 0;
879 }
880
rep_vport_rx_rule_destroy(struct mlx5e_priv * priv)881 static void rep_vport_rx_rule_destroy(struct mlx5e_priv *priv)
882 {
883 struct mlx5e_rep_priv *rpriv = priv->ppriv;
884
885 if (!rpriv->vport_rx_rule)
886 return;
887
888 mlx5_del_flow_rules(rpriv->vport_rx_rule);
889 rpriv->vport_rx_rule = NULL;
890 }
891
mlx5e_rep_bond_update(struct mlx5e_priv * priv,bool cleanup)892 int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup)
893 {
894 rep_vport_rx_rule_destroy(priv);
895
896 return cleanup ? 0 : mlx5e_create_rep_vport_rx_rule(priv);
897 }
898
mlx5e_init_rep_rx(struct mlx5e_priv * priv)899 static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
900 {
901 struct mlx5_core_dev *mdev = priv->mdev;
902 int err;
903
904 priv->rx_res = mlx5e_rx_res_alloc();
905 if (!priv->rx_res) {
906 err = -ENOMEM;
907 goto err_free_fs;
908 }
909
910 mlx5e_fs_init_l2_addr(priv->fs, priv->netdev);
911
912 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
913 if (err) {
914 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
915 return err;
916 }
917
918 err = mlx5e_rx_res_init(priv->rx_res, priv->mdev, 0,
919 priv->max_nch, priv->drop_rq.rqn,
920 &priv->channels.params.packet_merge,
921 priv->channels.params.num_channels);
922 if (err)
923 goto err_close_drop_rq;
924
925 err = mlx5e_create_rep_ttc_table(priv);
926 if (err)
927 goto err_destroy_rx_res;
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->fs);
938
939 return 0;
940
941 err_destroy_root_ft:
942 mlx5e_destroy_rep_root_ft(priv);
943 err_destroy_ttc_table:
944 mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
945 err_destroy_rx_res:
946 mlx5e_rx_res_destroy(priv->rx_res);
947 err_close_drop_rq:
948 mlx5e_close_drop_rq(&priv->drop_rq);
949 mlx5e_rx_res_free(priv->rx_res);
950 priv->rx_res = NULL;
951 err_free_fs:
952 mlx5e_fs_cleanup(priv->fs);
953 return err;
954 }
955
mlx5e_cleanup_rep_rx(struct mlx5e_priv * priv)956 static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
957 {
958 mlx5e_ethtool_cleanup_steering(priv->fs);
959 rep_vport_rx_rule_destroy(priv);
960 mlx5e_destroy_rep_root_ft(priv);
961 mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
962 mlx5e_rx_res_destroy(priv->rx_res);
963 mlx5e_close_drop_rq(&priv->drop_rq);
964 mlx5e_rx_res_free(priv->rx_res);
965 priv->rx_res = NULL;
966 }
967
mlx5e_init_ul_rep_rx(struct mlx5e_priv * priv)968 static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
969 {
970 int err;
971
972 mlx5e_create_q_counters(priv);
973 err = mlx5e_init_rep_rx(priv);
974 if (err)
975 goto out;
976
977 mlx5e_tc_int_port_init_rep_rx(priv);
978
979 out:
980 return err;
981 }
982
mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv * priv)983 static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
984 {
985 mlx5e_tc_int_port_cleanup_rep_rx(priv);
986 mlx5e_cleanup_rep_rx(priv);
987 mlx5e_destroy_q_counters(priv);
988 }
989
mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)990 static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
991 {
992 struct mlx5_rep_uplink_priv *uplink_priv;
993 struct net_device *netdev;
994 struct mlx5e_priv *priv;
995 int err;
996
997 netdev = rpriv->netdev;
998 priv = netdev_priv(netdev);
999 uplink_priv = &rpriv->uplink_priv;
1000
1001 err = mlx5e_rep_tc_init(rpriv);
1002 if (err)
1003 return err;
1004
1005 mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
1006
1007 mlx5e_rep_bond_init(rpriv);
1008 err = mlx5e_rep_tc_netdevice_event_register(rpriv);
1009 if (err) {
1010 mlx5_core_err(priv->mdev, "Failed to register netdev notifier, err: %d\n",
1011 err);
1012 goto err_event_reg;
1013 }
1014
1015 return 0;
1016
1017 err_event_reg:
1018 mlx5e_rep_bond_cleanup(rpriv);
1019 mlx5e_rep_tc_cleanup(rpriv);
1020 return err;
1021 }
1022
mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)1023 static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
1024 {
1025 mlx5e_rep_tc_netdevice_event_unregister(rpriv);
1026 mlx5e_rep_bond_cleanup(rpriv);
1027 mlx5e_rep_tc_cleanup(rpriv);
1028 }
1029
mlx5e_init_rep_tx(struct mlx5e_priv * priv)1030 static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
1031 {
1032 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1033 int err;
1034
1035 err = mlx5e_create_tises(priv);
1036 if (err) {
1037 mlx5_core_warn(priv->mdev, "create tises failed, %d\n", err);
1038 return err;
1039 }
1040
1041 if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
1042 err = mlx5e_init_uplink_rep_tx(rpriv);
1043 if (err)
1044 goto err_init_tx;
1045 }
1046
1047 err = mlx5e_tc_ht_init(&rpriv->tc_ht);
1048 if (err)
1049 goto err_ht_init;
1050
1051 return 0;
1052
1053 err_ht_init:
1054 if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
1055 mlx5e_cleanup_uplink_rep_tx(rpriv);
1056 err_init_tx:
1057 mlx5e_destroy_tises(priv);
1058 return err;
1059 }
1060
mlx5e_cleanup_rep_tx(struct mlx5e_priv * priv)1061 static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
1062 {
1063 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1064
1065 mlx5e_tc_ht_cleanup(&rpriv->tc_ht);
1066
1067 if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
1068 mlx5e_cleanup_uplink_rep_tx(rpriv);
1069
1070 mlx5e_destroy_tises(priv);
1071 }
1072
mlx5e_rep_enable(struct mlx5e_priv * priv)1073 static void mlx5e_rep_enable(struct mlx5e_priv *priv)
1074 {
1075 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1076
1077 mlx5e_set_netdev_mtu_boundaries(priv);
1078 mlx5e_rep_neigh_init(rpriv);
1079 }
1080
mlx5e_rep_disable(struct mlx5e_priv * priv)1081 static void mlx5e_rep_disable(struct mlx5e_priv *priv)
1082 {
1083 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1084
1085 mlx5e_rep_neigh_cleanup(rpriv);
1086 }
1087
mlx5e_update_rep_rx(struct mlx5e_priv * priv)1088 static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
1089 {
1090 return 0;
1091 }
1092
uplink_rep_async_event(struct notifier_block * nb,unsigned long event,void * data)1093 static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
1094 {
1095 struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
1096
1097 if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
1098 struct mlx5_eqe *eqe = data;
1099
1100 switch (eqe->sub_type) {
1101 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
1102 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
1103 queue_work(priv->wq, &priv->update_carrier_work);
1104 break;
1105 default:
1106 return NOTIFY_DONE;
1107 }
1108
1109 return NOTIFY_OK;
1110 }
1111
1112 if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
1113 return mlx5e_rep_tc_event_port_affinity(priv);
1114
1115 return NOTIFY_DONE;
1116 }
1117
mlx5e_uplink_rep_enable(struct mlx5e_priv * priv)1118 static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
1119 {
1120 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1121 struct net_device *netdev = priv->netdev;
1122 struct mlx5_core_dev *mdev = priv->mdev;
1123 u16 max_mtu;
1124
1125 netdev->min_mtu = ETH_MIN_MTU;
1126 mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
1127 netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
1128 mlx5e_set_dev_port_mtu(priv);
1129
1130 mlx5e_rep_tc_enable(priv);
1131
1132 if (MLX5_CAP_GEN(mdev, uplink_follow))
1133 mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
1134 0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
1135 mlx5_lag_add_netdev(mdev, netdev);
1136 priv->events_nb.notifier_call = uplink_rep_async_event;
1137 mlx5_notifier_register(mdev, &priv->events_nb);
1138 mlx5e_dcbnl_initialize(priv);
1139 mlx5e_dcbnl_init_app(priv);
1140 mlx5e_rep_neigh_init(rpriv);
1141 mlx5e_rep_bridge_init(priv);
1142
1143 netdev->wanted_features |= NETIF_F_HW_TC;
1144
1145 rtnl_lock();
1146 if (netif_running(netdev))
1147 mlx5e_open(netdev);
1148 udp_tunnel_nic_reset_ntf(priv->netdev);
1149 netif_device_attach(netdev);
1150 rtnl_unlock();
1151 }
1152
mlx5e_uplink_rep_disable(struct mlx5e_priv * priv)1153 static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
1154 {
1155 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1156 struct mlx5_core_dev *mdev = priv->mdev;
1157
1158 rtnl_lock();
1159 if (netif_running(priv->netdev))
1160 mlx5e_close(priv->netdev);
1161 netif_device_detach(priv->netdev);
1162 rtnl_unlock();
1163
1164 mlx5e_rep_bridge_cleanup(priv);
1165 mlx5e_rep_neigh_cleanup(rpriv);
1166 mlx5e_dcbnl_delete_app(priv);
1167 mlx5_notifier_unregister(mdev, &priv->events_nb);
1168 mlx5e_rep_tc_disable(priv);
1169 mlx5_lag_remove_netdev(mdev, priv->netdev);
1170 mlx5_vxlan_reset_to_default(mdev->vxlan);
1171 }
1172
1173 static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);
1174 static MLX5E_DEFINE_STATS_GRP(vport_rep, MLX5E_NDO_UPDATE_STATS);
1175
1176 /* The stats groups order is opposite to the update_stats() order calls */
1177 static mlx5e_stats_grp_t mlx5e_rep_stats_grps[] = {
1178 &MLX5E_STATS_GRP(sw_rep),
1179 &MLX5E_STATS_GRP(vport_rep),
1180 };
1181
mlx5e_rep_stats_grps_num(struct mlx5e_priv * priv)1182 static unsigned int mlx5e_rep_stats_grps_num(struct mlx5e_priv *priv)
1183 {
1184 return ARRAY_SIZE(mlx5e_rep_stats_grps);
1185 }
1186
1187 /* The stats groups order is opposite to the update_stats() order calls */
1188 static mlx5e_stats_grp_t mlx5e_ul_rep_stats_grps[] = {
1189 &MLX5E_STATS_GRP(sw),
1190 &MLX5E_STATS_GRP(qcnt),
1191 &MLX5E_STATS_GRP(vnic_env),
1192 &MLX5E_STATS_GRP(vport),
1193 &MLX5E_STATS_GRP(802_3),
1194 &MLX5E_STATS_GRP(2863),
1195 &MLX5E_STATS_GRP(2819),
1196 &MLX5E_STATS_GRP(phy),
1197 &MLX5E_STATS_GRP(eth_ext),
1198 &MLX5E_STATS_GRP(pcie),
1199 &MLX5E_STATS_GRP(per_prio),
1200 &MLX5E_STATS_GRP(pme),
1201 &MLX5E_STATS_GRP(channels),
1202 &MLX5E_STATS_GRP(per_port_buff_congest),
1203 #ifdef CONFIG_MLX5_EN_IPSEC
1204 &MLX5E_STATS_GRP(ipsec_sw),
1205 #endif
1206 &MLX5E_STATS_GRP(ptp),
1207 };
1208
mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv * priv)1209 static unsigned int mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv *priv)
1210 {
1211 return ARRAY_SIZE(mlx5e_ul_rep_stats_grps);
1212 }
1213
1214 static const struct mlx5e_profile mlx5e_rep_profile = {
1215 .init = mlx5e_init_rep,
1216 .cleanup = mlx5e_cleanup_rep,
1217 .init_rx = mlx5e_init_rep_rx,
1218 .cleanup_rx = mlx5e_cleanup_rep_rx,
1219 .init_tx = mlx5e_init_rep_tx,
1220 .cleanup_tx = mlx5e_cleanup_rep_tx,
1221 .enable = mlx5e_rep_enable,
1222 .disable = mlx5e_rep_disable,
1223 .update_rx = mlx5e_update_rep_rx,
1224 .update_stats = mlx5e_stats_update_ndo_stats,
1225 .rx_handlers = &mlx5e_rx_handlers_rep,
1226 .max_tc = 1,
1227 .stats_grps = mlx5e_rep_stats_grps,
1228 .stats_grps_num = mlx5e_rep_stats_grps_num,
1229 .max_nch_limit = mlx5e_rep_max_nch_limit,
1230 };
1231
1232 static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
1233 .init = mlx5e_init_ul_rep,
1234 .cleanup = mlx5e_cleanup_rep,
1235 .init_rx = mlx5e_init_ul_rep_rx,
1236 .cleanup_rx = mlx5e_cleanup_ul_rep_rx,
1237 .init_tx = mlx5e_init_rep_tx,
1238 .cleanup_tx = mlx5e_cleanup_rep_tx,
1239 .enable = mlx5e_uplink_rep_enable,
1240 .disable = mlx5e_uplink_rep_disable,
1241 .update_rx = mlx5e_update_rep_rx,
1242 .update_stats = mlx5e_stats_update_ndo_stats,
1243 .update_carrier = mlx5e_update_carrier,
1244 .rx_handlers = &mlx5e_rx_handlers_rep,
1245 .max_tc = MLX5E_MAX_NUM_TC,
1246 .stats_grps = mlx5e_ul_rep_stats_grps,
1247 .stats_grps_num = mlx5e_ul_rep_stats_grps_num,
1248 };
1249
1250 /* e-Switch vport representors */
1251 static int
mlx5e_vport_uplink_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1252 mlx5e_vport_uplink_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1253 {
1254 struct mlx5e_priv *priv = netdev_priv(mlx5_uplink_netdev_get(dev));
1255 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1256 struct devlink_port *dl_port;
1257 int err;
1258
1259 rpriv->netdev = priv->netdev;
1260
1261 err = mlx5e_netdev_change_profile(priv, &mlx5e_uplink_rep_profile,
1262 rpriv);
1263 if (err)
1264 return err;
1265
1266 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1267 if (dl_port)
1268 devlink_port_type_eth_set(dl_port, rpriv->netdev);
1269
1270 return 0;
1271 }
1272
1273 static void
mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv * rpriv)1274 mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv *rpriv)
1275 {
1276 struct net_device *netdev = rpriv->netdev;
1277 struct devlink_port *dl_port;
1278 struct mlx5_core_dev *dev;
1279 struct mlx5e_priv *priv;
1280
1281 priv = netdev_priv(netdev);
1282 dev = priv->mdev;
1283
1284 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1285 if (dl_port)
1286 devlink_port_type_clear(dl_port);
1287 mlx5e_netdev_attach_nic_profile(priv);
1288 }
1289
1290 static int
mlx5e_vport_vf_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1291 mlx5e_vport_vf_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1292 {
1293 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1294 const struct mlx5e_profile *profile;
1295 struct devlink_port *dl_port;
1296 struct net_device *netdev;
1297 struct mlx5e_priv *priv;
1298 int err;
1299
1300 profile = &mlx5e_rep_profile;
1301 netdev = mlx5e_create_netdev(dev, profile);
1302 if (!netdev) {
1303 mlx5_core_warn(dev,
1304 "Failed to create representor netdev for vport %d\n",
1305 rep->vport);
1306 return -EINVAL;
1307 }
1308
1309 mlx5e_build_rep_netdev(netdev, dev);
1310 rpriv->netdev = netdev;
1311
1312 priv = netdev_priv(netdev);
1313 priv->profile = profile;
1314 priv->ppriv = rpriv;
1315 err = profile->init(dev, netdev);
1316 if (err) {
1317 netdev_warn(netdev, "rep profile init failed, %d\n", err);
1318 goto err_destroy_netdev;
1319 }
1320
1321 err = mlx5e_attach_netdev(netdev_priv(netdev));
1322 if (err) {
1323 netdev_warn(netdev,
1324 "Failed to attach representor netdev for vport %d\n",
1325 rep->vport);
1326 goto err_cleanup_profile;
1327 }
1328
1329 err = register_netdev(netdev);
1330 if (err) {
1331 netdev_warn(netdev,
1332 "Failed to register representor netdev for vport %d\n",
1333 rep->vport);
1334 goto err_detach_netdev;
1335 }
1336
1337 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1338 if (dl_port)
1339 devlink_port_type_eth_set(dl_port, netdev);
1340 return 0;
1341
1342 err_detach_netdev:
1343 mlx5e_detach_netdev(netdev_priv(netdev));
1344
1345 err_cleanup_profile:
1346 priv->profile->cleanup(priv);
1347
1348 err_destroy_netdev:
1349 mlx5e_destroy_netdev(netdev_priv(netdev));
1350 return err;
1351 }
1352
1353 static int
mlx5e_vport_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1354 mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1355 {
1356 struct mlx5e_rep_priv *rpriv;
1357 int err;
1358
1359 rpriv = kvzalloc(sizeof(*rpriv), GFP_KERNEL);
1360 if (!rpriv)
1361 return -ENOMEM;
1362
1363 /* rpriv->rep to be looked up when profile->init() is called */
1364 rpriv->rep = rep;
1365 rep->rep_data[REP_ETH].priv = rpriv;
1366 INIT_LIST_HEAD(&rpriv->vport_sqs_list);
1367
1368 if (rep->vport == MLX5_VPORT_UPLINK)
1369 err = mlx5e_vport_uplink_rep_load(dev, rep);
1370 else
1371 err = mlx5e_vport_vf_rep_load(dev, rep);
1372
1373 if (err)
1374 kvfree(rpriv);
1375
1376 return err;
1377 }
1378
1379 static void
mlx5e_vport_rep_unload(struct mlx5_eswitch_rep * rep)1380 mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
1381 {
1382 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1383 struct net_device *netdev = rpriv->netdev;
1384 struct mlx5e_priv *priv = netdev_priv(netdev);
1385 struct mlx5_core_dev *dev = priv->mdev;
1386 struct devlink_port *dl_port;
1387 void *ppriv = priv->ppriv;
1388
1389 if (rep->vport == MLX5_VPORT_UPLINK) {
1390 mlx5e_vport_uplink_rep_unload(rpriv);
1391 goto free_ppriv;
1392 }
1393
1394 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch, rpriv->rep->vport);
1395 if (dl_port)
1396 devlink_port_type_clear(dl_port);
1397 unregister_netdev(netdev);
1398 mlx5e_detach_netdev(priv);
1399 priv->profile->cleanup(priv);
1400 mlx5e_destroy_netdev(priv);
1401 free_ppriv:
1402 kvfree(ppriv); /* mlx5e_rep_priv */
1403 }
1404
mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep * rep)1405 static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
1406 {
1407 struct mlx5e_rep_priv *rpriv;
1408
1409 rpriv = mlx5e_rep_to_rep_priv(rep);
1410
1411 return rpriv->netdev;
1412 }
1413
mlx5e_vport_rep_event_unpair(struct mlx5_eswitch_rep * rep)1414 static void mlx5e_vport_rep_event_unpair(struct mlx5_eswitch_rep *rep)
1415 {
1416 struct mlx5e_rep_priv *rpriv;
1417 struct mlx5e_rep_sq *rep_sq;
1418
1419 rpriv = mlx5e_rep_to_rep_priv(rep);
1420 list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
1421 if (!rep_sq->send_to_vport_rule_peer)
1422 continue;
1423 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule_peer);
1424 rep_sq->send_to_vport_rule_peer = NULL;
1425 }
1426 }
1427
mlx5e_vport_rep_event_pair(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,struct mlx5_eswitch * peer_esw)1428 static int mlx5e_vport_rep_event_pair(struct mlx5_eswitch *esw,
1429 struct mlx5_eswitch_rep *rep,
1430 struct mlx5_eswitch *peer_esw)
1431 {
1432 struct mlx5_flow_handle *flow_rule;
1433 struct mlx5e_rep_priv *rpriv;
1434 struct mlx5e_rep_sq *rep_sq;
1435
1436 rpriv = mlx5e_rep_to_rep_priv(rep);
1437 list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
1438 if (rep_sq->send_to_vport_rule_peer)
1439 continue;
1440 flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw, rep, rep_sq->sqn);
1441 if (IS_ERR(flow_rule))
1442 goto err_out;
1443 rep_sq->send_to_vport_rule_peer = flow_rule;
1444 }
1445
1446 return 0;
1447 err_out:
1448 mlx5e_vport_rep_event_unpair(rep);
1449 return PTR_ERR(flow_rule);
1450 }
1451
mlx5e_vport_rep_event(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,enum mlx5_switchdev_event event,void * data)1452 static int mlx5e_vport_rep_event(struct mlx5_eswitch *esw,
1453 struct mlx5_eswitch_rep *rep,
1454 enum mlx5_switchdev_event event,
1455 void *data)
1456 {
1457 int err = 0;
1458
1459 if (event == MLX5_SWITCHDEV_EVENT_PAIR)
1460 err = mlx5e_vport_rep_event_pair(esw, rep, data);
1461 else if (event == MLX5_SWITCHDEV_EVENT_UNPAIR)
1462 mlx5e_vport_rep_event_unpair(rep);
1463
1464 return err;
1465 }
1466
1467 static const struct mlx5_eswitch_rep_ops rep_ops = {
1468 .load = mlx5e_vport_rep_load,
1469 .unload = mlx5e_vport_rep_unload,
1470 .get_proto_dev = mlx5e_vport_rep_get_proto_dev,
1471 .event = mlx5e_vport_rep_event,
1472 };
1473
mlx5e_rep_probe(struct auxiliary_device * adev,const struct auxiliary_device_id * id)1474 static int mlx5e_rep_probe(struct auxiliary_device *adev,
1475 const struct auxiliary_device_id *id)
1476 {
1477 struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
1478 struct mlx5_core_dev *mdev = edev->mdev;
1479 struct mlx5_eswitch *esw;
1480
1481 esw = mdev->priv.eswitch;
1482 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
1483 return 0;
1484 }
1485
mlx5e_rep_remove(struct auxiliary_device * adev)1486 static void mlx5e_rep_remove(struct auxiliary_device *adev)
1487 {
1488 struct mlx5_adev *vdev = container_of(adev, struct mlx5_adev, adev);
1489 struct mlx5_core_dev *mdev = vdev->mdev;
1490 struct mlx5_eswitch *esw;
1491
1492 esw = mdev->priv.eswitch;
1493 mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
1494 }
1495
1496 static const struct auxiliary_device_id mlx5e_rep_id_table[] = {
1497 { .name = MLX5_ADEV_NAME ".eth-rep", },
1498 {},
1499 };
1500
1501 MODULE_DEVICE_TABLE(auxiliary, mlx5e_rep_id_table);
1502
1503 static struct auxiliary_driver mlx5e_rep_driver = {
1504 .name = "eth-rep",
1505 .probe = mlx5e_rep_probe,
1506 .remove = mlx5e_rep_remove,
1507 .id_table = mlx5e_rep_id_table,
1508 };
1509
mlx5e_rep_init(void)1510 int mlx5e_rep_init(void)
1511 {
1512 return auxiliary_driver_register(&mlx5e_rep_driver);
1513 }
1514
mlx5e_rep_cleanup(void)1515 void mlx5e_rep_cleanup(void)
1516 {
1517 auxiliary_driver_unregister(&mlx5e_rep_driver);
1518 }
1519