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/dim.h>
34 #include <linux/debugfs.h>
35 #include <linux/mlx5/fs.h>
36 #include <net/switchdev.h>
37 #include <net/pkt_cls.h>
38 #include <net/act_api.h>
39 #include <net/devlink.h>
40 #include <net/ipv6_stubs.h>
41
42 #include "eswitch.h"
43 #include "en.h"
44 #include "en/dim.h"
45 #include "en_rep.h"
46 #include "en/params.h"
47 #include "en/txrx.h"
48 #include "en_tc.h"
49 #include "en/rep/tc.h"
50 #include "en/rep/neigh.h"
51 #include "en/rep/bridge.h"
52 #include "en/devlink.h"
53 #include "fs_core.h"
54 #include "lib/mlx5.h"
55 #include "lib/devcom.h"
56 #include "lib/vxlan.h"
57 #define CREATE_TRACE_POINTS
58 #include "diag/en_rep_tracepoint.h"
59 #include "diag/reporter_vnic.h"
60 #include "en_accel/ipsec.h"
61 #include "en/tc/int_port.h"
62 #include "en/ptp.h"
63 #include "en/fs_ethtool.h"
64
65 #define MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE \
66 max(0x7, MLX5E_PARAMS_MINIMUM_LOG_SQ_SIZE)
67 #define MLX5E_REP_PARAMS_DEF_NUM_CHANNELS 1
68 #define MLX5E_REP_PARAMS_DEF_LOG_RQ_SIZE 0x8
69
70 static const char mlx5e_rep_driver_name[] = "mlx5e_rep";
71
mlx5e_rep_get_drvinfo(struct net_device * dev,struct ethtool_drvinfo * drvinfo)72 static void mlx5e_rep_get_drvinfo(struct net_device *dev,
73 struct ethtool_drvinfo *drvinfo)
74 {
75 struct mlx5e_priv *priv = netdev_priv(dev);
76 struct mlx5_core_dev *mdev = priv->mdev;
77 int count;
78
79 strscpy(drvinfo->driver, mlx5e_rep_driver_name,
80 sizeof(drvinfo->driver));
81 count = snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
82 "%d.%d.%04d (%.16s)", fw_rev_maj(mdev),
83 fw_rev_min(mdev), fw_rev_sub(mdev), mdev->board_id);
84 if (count >= sizeof(drvinfo->fw_version))
85 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
86 "%d.%d.%04d", fw_rev_maj(mdev),
87 fw_rev_min(mdev), fw_rev_sub(mdev));
88 }
89
90 static const struct counter_desc sw_rep_stats_desc[] = {
91 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_packets) },
92 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_bytes) },
93 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_packets) },
94 { MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_bytes) },
95 };
96
97 static const struct counter_desc vport_rep_stats_desc[] = {
98 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_rx_packets) },
99 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_rx_bytes) },
100 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_tx_packets) },
101 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, vport_tx_bytes) },
102 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
103 rx_vport_rdma_unicast_packets) },
104 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, rx_vport_rdma_unicast_bytes) },
105 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
106 tx_vport_rdma_unicast_packets) },
107 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats, tx_vport_rdma_unicast_bytes) },
108 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
109 rx_vport_rdma_multicast_packets) },
110 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
111 rx_vport_rdma_multicast_bytes) },
112 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
113 tx_vport_rdma_multicast_packets) },
114 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
115 tx_vport_rdma_multicast_bytes) },
116 };
117
118 static const struct counter_desc vport_rep_loopback_stats_desc[] = {
119 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
120 vport_loopback_packets) },
121 { MLX5E_DECLARE_STAT(struct mlx5e_rep_stats,
122 vport_loopback_bytes) },
123 };
124
125 #define NUM_VPORT_REP_SW_COUNTERS ARRAY_SIZE(sw_rep_stats_desc)
126 #define NUM_VPORT_REP_HW_COUNTERS ARRAY_SIZE(vport_rep_stats_desc)
127 #define NUM_VPORT_REP_LOOPBACK_COUNTERS(dev) \
128 (MLX5_CAP_GEN(dev, vport_counter_local_loopback) ? \
129 ARRAY_SIZE(vport_rep_loopback_stats_desc) : 0)
130
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)131 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(sw_rep)
132 {
133 return NUM_VPORT_REP_SW_COUNTERS;
134 }
135
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)136 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(sw_rep)
137 {
138 int i;
139
140 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
141 ethtool_puts(data, sw_rep_stats_desc[i].format);
142 }
143
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)144 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(sw_rep)
145 {
146 int i;
147
148 for (i = 0; i < NUM_VPORT_REP_SW_COUNTERS; i++)
149 mlx5e_ethtool_put_stat(
150 data, MLX5E_READ_CTR64_CPU(&priv->stats.sw,
151 sw_rep_stats_desc, i));
152 }
153
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)154 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(sw_rep)
155 {
156 struct mlx5e_sw_stats *s = &priv->stats.sw;
157 struct rtnl_link_stats64 stats64 = {};
158
159 memset(s, 0, sizeof(*s));
160 mlx5e_fold_sw_stats64(priv, &stats64);
161
162 s->rx_packets = stats64.rx_packets;
163 s->rx_bytes = stats64.rx_bytes;
164 s->tx_packets = stats64.tx_packets;
165 s->tx_bytes = stats64.tx_bytes;
166 s->tx_queue_dropped = stats64.tx_dropped;
167 }
168
MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)169 static MLX5E_DECLARE_STATS_GRP_OP_NUM_STATS(vport_rep)
170 {
171 return NUM_VPORT_REP_HW_COUNTERS +
172 NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev);
173 }
174
MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)175 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STRS(vport_rep)
176 {
177 int i;
178
179 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
180 ethtool_puts(data, vport_rep_stats_desc[i].format);
181 for (i = 0; i < NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev); i++)
182 ethtool_puts(data, vport_rep_loopback_stats_desc[i].format);
183 }
184
MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)185 static MLX5E_DECLARE_STATS_GRP_OP_FILL_STATS(vport_rep)
186 {
187 int i;
188
189 for (i = 0; i < NUM_VPORT_REP_HW_COUNTERS; i++)
190 mlx5e_ethtool_put_stat(
191 data, MLX5E_READ_CTR64_CPU(&priv->stats.rep_stats,
192 vport_rep_stats_desc, i));
193 for (i = 0; i < NUM_VPORT_REP_LOOPBACK_COUNTERS(priv->mdev); i++)
194 mlx5e_ethtool_put_stat(
195 data,
196 MLX5E_READ_CTR64_CPU(&priv->stats.rep_stats,
197 vport_rep_loopback_stats_desc, i));
198 }
199
MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)200 static MLX5E_DECLARE_STATS_GRP_OP_UPDATE_STATS(vport_rep)
201 {
202 struct mlx5e_rep_stats *rep_stats = &priv->stats.rep_stats;
203 int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
204 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
205 struct mlx5e_rep_priv *rpriv = priv->ppriv;
206 struct mlx5_eswitch_rep *rep = rpriv->rep;
207 u32 *out;
208 int err;
209
210 out = kvzalloc(outlen, GFP_KERNEL);
211 if (!out)
212 return;
213
214 err = mlx5_core_query_vport_counter(esw->dev, 1, rep->vport - 1, 0, out);
215 if (err) {
216 netdev_warn(priv->netdev, "vport %d error %d reading stats\n",
217 rep->vport, err);
218 goto out;
219 }
220
221 #define MLX5_GET_CTR(p, x) \
222 MLX5_GET64(query_vport_counter_out, p, x)
223 /* flip tx/rx as we are reporting the counters for the switch vport */
224 rep_stats->vport_rx_packets =
225 MLX5_GET_CTR(out, transmitted_ib_unicast.packets) +
226 MLX5_GET_CTR(out, transmitted_eth_unicast.packets) +
227 MLX5_GET_CTR(out, transmitted_ib_multicast.packets) +
228 MLX5_GET_CTR(out, transmitted_eth_multicast.packets) +
229 MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
230
231 rep_stats->vport_tx_packets =
232 MLX5_GET_CTR(out, received_ib_unicast.packets) +
233 MLX5_GET_CTR(out, received_eth_unicast.packets) +
234 MLX5_GET_CTR(out, received_ib_multicast.packets) +
235 MLX5_GET_CTR(out, received_eth_multicast.packets) +
236 MLX5_GET_CTR(out, received_eth_broadcast.packets);
237
238 rep_stats->vport_rx_bytes =
239 MLX5_GET_CTR(out, transmitted_ib_unicast.octets) +
240 MLX5_GET_CTR(out, transmitted_eth_unicast.octets) +
241 MLX5_GET_CTR(out, transmitted_ib_multicast.octets) +
242 MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
243
244 rep_stats->vport_tx_bytes =
245 MLX5_GET_CTR(out, received_ib_unicast.octets) +
246 MLX5_GET_CTR(out, received_eth_unicast.octets) +
247 MLX5_GET_CTR(out, received_ib_multicast.octets) +
248 MLX5_GET_CTR(out, received_eth_multicast.octets) +
249 MLX5_GET_CTR(out, received_eth_broadcast.octets);
250
251 rep_stats->rx_vport_rdma_unicast_packets =
252 MLX5_GET_CTR(out, transmitted_ib_unicast.packets);
253 rep_stats->tx_vport_rdma_unicast_packets =
254 MLX5_GET_CTR(out, received_ib_unicast.packets);
255 rep_stats->rx_vport_rdma_unicast_bytes =
256 MLX5_GET_CTR(out, transmitted_ib_unicast.octets);
257 rep_stats->tx_vport_rdma_unicast_bytes =
258 MLX5_GET_CTR(out, received_ib_unicast.octets);
259 rep_stats->rx_vport_rdma_multicast_packets =
260 MLX5_GET_CTR(out, transmitted_ib_multicast.packets);
261 rep_stats->tx_vport_rdma_multicast_packets =
262 MLX5_GET_CTR(out, received_ib_multicast.packets);
263 rep_stats->rx_vport_rdma_multicast_bytes =
264 MLX5_GET_CTR(out, transmitted_ib_multicast.octets);
265 rep_stats->tx_vport_rdma_multicast_bytes =
266 MLX5_GET_CTR(out, received_ib_multicast.octets);
267
268 if (MLX5_CAP_GEN(priv->mdev, vport_counter_local_loopback)) {
269 rep_stats->vport_loopback_packets =
270 MLX5_GET_CTR(out, local_loopback.packets);
271 rep_stats->vport_loopback_bytes =
272 MLX5_GET_CTR(out, local_loopback.octets);
273 }
274
275 out:
276 kvfree(out);
277 }
278
mlx5e_rep_query_aggr_q_counter(struct mlx5_core_dev * dev,int vport,void * out)279 static int mlx5e_rep_query_aggr_q_counter(struct mlx5_core_dev *dev, int vport, void *out)
280 {
281 u32 in[MLX5_ST_SZ_DW(query_q_counter_in)] = {};
282
283 MLX5_SET(query_q_counter_in, in, opcode, MLX5_CMD_OP_QUERY_Q_COUNTER);
284 MLX5_SET(query_q_counter_in, in, other_vport, 1);
285 MLX5_SET(query_q_counter_in, in, vport_number, vport);
286 MLX5_SET(query_q_counter_in, in, aggregate, 1);
287
288 return mlx5_cmd_exec_inout(dev, query_q_counter, in, out);
289 }
290
mlx5e_rep_update_vport_q_counter(struct mlx5e_priv * priv)291 static void mlx5e_rep_update_vport_q_counter(struct mlx5e_priv *priv)
292 {
293 struct mlx5e_rep_stats *rep_stats = &priv->stats.rep_stats;
294 u32 out[MLX5_ST_SZ_DW(query_q_counter_out)] = {};
295 struct mlx5e_rep_priv *rpriv = priv->ppriv;
296 struct mlx5_eswitch_rep *rep = rpriv->rep;
297 int err;
298
299 if (!MLX5_CAP_GEN(priv->mdev, q_counter_other_vport) ||
300 !MLX5_CAP_GEN(priv->mdev, q_counter_aggregation))
301 return;
302
303 err = mlx5e_rep_query_aggr_q_counter(priv->mdev, rep->vport, out);
304 if (err) {
305 netdev_warn(priv->netdev, "failed reading stats on vport %d, error %d\n",
306 rep->vport, err);
307 return;
308 }
309
310 rep_stats->rx_vport_out_of_buffer = MLX5_GET(query_q_counter_out, out, out_of_buffer);
311 }
312
mlx5e_rep_get_strings(struct net_device * dev,u32 stringset,u8 * data)313 static void mlx5e_rep_get_strings(struct net_device *dev,
314 u32 stringset, u8 *data)
315 {
316 struct mlx5e_priv *priv = netdev_priv(dev);
317
318 switch (stringset) {
319 case ETH_SS_STATS:
320 mlx5e_stats_fill_strings(priv, data);
321 break;
322 }
323 }
324
mlx5e_rep_get_ethtool_stats(struct net_device * dev,struct ethtool_stats * stats,u64 * data)325 static void mlx5e_rep_get_ethtool_stats(struct net_device *dev,
326 struct ethtool_stats *stats, u64 *data)
327 {
328 struct mlx5e_priv *priv = netdev_priv(dev);
329
330 mlx5e_ethtool_get_ethtool_stats(priv, stats, data);
331 }
332
mlx5e_rep_get_sset_count(struct net_device * dev,int sset)333 static int mlx5e_rep_get_sset_count(struct net_device *dev, int sset)
334 {
335 struct mlx5e_priv *priv = netdev_priv(dev);
336
337 switch (sset) {
338 case ETH_SS_STATS:
339 return mlx5e_stats_total_num(priv);
340 default:
341 return -EOPNOTSUPP;
342 }
343 }
344
345 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)346 mlx5e_rep_get_ringparam(struct net_device *dev,
347 struct ethtool_ringparam *param,
348 struct kernel_ethtool_ringparam *kernel_param,
349 struct netlink_ext_ack *extack)
350 {
351 struct mlx5e_priv *priv = netdev_priv(dev);
352
353 mlx5e_ethtool_get_ringparam(priv, param, kernel_param);
354 }
355
356 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)357 mlx5e_rep_set_ringparam(struct net_device *dev,
358 struct ethtool_ringparam *param,
359 struct kernel_ethtool_ringparam *kernel_param,
360 struct netlink_ext_ack *extack)
361 {
362 struct mlx5e_priv *priv = netdev_priv(dev);
363
364 return mlx5e_ethtool_set_ringparam(priv, param, extack);
365 }
366
mlx5e_rep_get_channels(struct net_device * dev,struct ethtool_channels * ch)367 static void mlx5e_rep_get_channels(struct net_device *dev,
368 struct ethtool_channels *ch)
369 {
370 struct mlx5e_priv *priv = netdev_priv(dev);
371
372 mlx5e_ethtool_get_channels(priv, ch);
373 }
374
mlx5e_rep_set_channels(struct net_device * dev,struct ethtool_channels * ch)375 static int mlx5e_rep_set_channels(struct net_device *dev,
376 struct ethtool_channels *ch)
377 {
378 struct mlx5e_priv *priv = netdev_priv(dev);
379
380 return mlx5e_ethtool_set_channels(priv, ch);
381 }
382
mlx5e_rep_get_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)383 static int mlx5e_rep_get_coalesce(struct net_device *netdev,
384 struct ethtool_coalesce *coal,
385 struct kernel_ethtool_coalesce *kernel_coal,
386 struct netlink_ext_ack *extack)
387 {
388 struct mlx5e_priv *priv = netdev_priv(netdev);
389
390 return mlx5e_ethtool_get_coalesce(priv, coal, kernel_coal, extack);
391 }
392
mlx5e_rep_set_coalesce(struct net_device * netdev,struct ethtool_coalesce * coal,struct kernel_ethtool_coalesce * kernel_coal,struct netlink_ext_ack * extack)393 static int mlx5e_rep_set_coalesce(struct net_device *netdev,
394 struct ethtool_coalesce *coal,
395 struct kernel_ethtool_coalesce *kernel_coal,
396 struct netlink_ext_ack *extack)
397 {
398 struct mlx5e_priv *priv = netdev_priv(netdev);
399
400 return mlx5e_ethtool_set_coalesce(priv, coal, kernel_coal, extack);
401 }
402
mlx5e_rep_get_rxfh_key_size(struct net_device * netdev)403 static u32 mlx5e_rep_get_rxfh_key_size(struct net_device *netdev)
404 {
405 struct mlx5e_priv *priv = netdev_priv(netdev);
406
407 return mlx5e_ethtool_get_rxfh_key_size(priv);
408 }
409
mlx5e_rep_get_rxfh_indir_size(struct net_device * netdev)410 static u32 mlx5e_rep_get_rxfh_indir_size(struct net_device *netdev)
411 {
412 struct mlx5e_priv *priv = netdev_priv(netdev);
413
414 return mlx5e_ethtool_get_rxfh_indir_size(priv);
415 }
416
417 static const struct ethtool_ops mlx5e_rep_ethtool_ops = {
418 .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
419 ETHTOOL_COALESCE_MAX_FRAMES |
420 ETHTOOL_COALESCE_USE_ADAPTIVE,
421 .get_drvinfo = mlx5e_rep_get_drvinfo,
422 .get_link = ethtool_op_get_link,
423 .get_strings = mlx5e_rep_get_strings,
424 .get_sset_count = mlx5e_rep_get_sset_count,
425 .get_ethtool_stats = mlx5e_rep_get_ethtool_stats,
426 .get_ringparam = mlx5e_rep_get_ringparam,
427 .set_ringparam = mlx5e_rep_set_ringparam,
428 .get_channels = mlx5e_rep_get_channels,
429 .set_channels = mlx5e_rep_set_channels,
430 .get_coalesce = mlx5e_rep_get_coalesce,
431 .set_coalesce = mlx5e_rep_set_coalesce,
432 .get_per_queue_coalesce = mlx5e_get_per_queue_coalesce,
433 .set_per_queue_coalesce = mlx5e_set_per_queue_coalesce,
434 .get_rxfh_key_size = mlx5e_rep_get_rxfh_key_size,
435 .get_rxfh_indir_size = mlx5e_rep_get_rxfh_indir_size,
436 };
437
mlx5e_sqs2vport_stop(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep)438 static void mlx5e_sqs2vport_stop(struct mlx5_eswitch *esw,
439 struct mlx5_eswitch_rep *rep)
440 {
441 struct mlx5e_rep_sq *rep_sq, *tmp;
442 struct mlx5e_rep_sq_peer *sq_peer;
443 struct mlx5e_rep_priv *rpriv;
444 unsigned long i;
445
446 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
447 return;
448
449 rpriv = mlx5e_rep_to_rep_priv(rep);
450 list_for_each_entry_safe(rep_sq, tmp, &rpriv->vport_sqs_list, list) {
451 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
452 xa_for_each(&rep_sq->sq_peer, i, sq_peer) {
453 if (sq_peer->rule)
454 mlx5_eswitch_del_send_to_vport_rule(sq_peer->rule);
455
456 xa_erase(&rep_sq->sq_peer, i);
457 kfree(sq_peer);
458 }
459
460 xa_destroy(&rep_sq->sq_peer);
461 list_del(&rep_sq->list);
462 kfree(rep_sq);
463 }
464 }
465
mlx5e_sqs2vport_add_peers_rules(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,struct mlx5e_rep_sq * rep_sq,int i)466 static int mlx5e_sqs2vport_add_peers_rules(struct mlx5_eswitch *esw, struct mlx5_eswitch_rep *rep,
467 struct mlx5e_rep_sq *rep_sq, int i)
468 {
469 struct mlx5_flow_handle *flow_rule;
470 struct mlx5_devcom_comp_dev *tmp;
471 struct mlx5_eswitch *peer_esw;
472
473 mlx5_devcom_for_each_peer_entry(esw->devcom, peer_esw, tmp) {
474 u16 peer_rule_idx = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
475 struct mlx5e_rep_sq_peer *sq_peer;
476 int err;
477
478 sq_peer = kzalloc(sizeof(*sq_peer), GFP_KERNEL);
479 if (!sq_peer)
480 return -ENOMEM;
481
482 flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw,
483 rep, rep_sq->sqn);
484 if (IS_ERR(flow_rule)) {
485 kfree(sq_peer);
486 return PTR_ERR(flow_rule);
487 }
488
489 sq_peer->rule = flow_rule;
490 sq_peer->peer = peer_esw;
491 err = xa_insert(&rep_sq->sq_peer, peer_rule_idx, sq_peer, GFP_KERNEL);
492 if (err) {
493 kfree(sq_peer);
494 mlx5_eswitch_del_send_to_vport_rule(flow_rule);
495 return err;
496 }
497 }
498
499 return 0;
500 }
501
mlx5e_sqs2vport_start(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,u32 * sqns_array,int sqns_num)502 static int mlx5e_sqs2vport_start(struct mlx5_eswitch *esw,
503 struct mlx5_eswitch_rep *rep,
504 u32 *sqns_array, int sqns_num)
505 {
506 struct mlx5_flow_handle *flow_rule;
507 struct mlx5e_rep_priv *rpriv;
508 struct mlx5e_rep_sq *rep_sq;
509 bool devcom_locked = false;
510 int err;
511 int i;
512
513 if (esw->mode != MLX5_ESWITCH_OFFLOADS)
514 return 0;
515
516 rpriv = mlx5e_rep_to_rep_priv(rep);
517
518 if (mlx5_devcom_comp_is_ready(esw->devcom) &&
519 mlx5_devcom_for_each_peer_begin(esw->devcom))
520 devcom_locked = true;
521
522 for (i = 0; i < sqns_num; i++) {
523 rep_sq = kzalloc(sizeof(*rep_sq), GFP_KERNEL);
524 if (!rep_sq) {
525 err = -ENOMEM;
526 goto out_err;
527 }
528
529 /* Add re-inject rule to the PF/representor sqs */
530 flow_rule = mlx5_eswitch_add_send_to_vport_rule(esw, esw, rep,
531 sqns_array[i]);
532 if (IS_ERR(flow_rule)) {
533 err = PTR_ERR(flow_rule);
534 kfree(rep_sq);
535 goto out_err;
536 }
537 rep_sq->send_to_vport_rule = flow_rule;
538 rep_sq->sqn = sqns_array[i];
539
540 xa_init(&rep_sq->sq_peer);
541 if (devcom_locked) {
542 err = mlx5e_sqs2vport_add_peers_rules(esw, rep, rep_sq, i);
543 if (err) {
544 mlx5_eswitch_del_send_to_vport_rule(rep_sq->send_to_vport_rule);
545 xa_destroy(&rep_sq->sq_peer);
546 kfree(rep_sq);
547 goto out_err;
548 }
549 }
550
551 list_add(&rep_sq->list, &rpriv->vport_sqs_list);
552 }
553
554 if (devcom_locked)
555 mlx5_devcom_for_each_peer_end(esw->devcom);
556
557 return 0;
558
559 out_err:
560 mlx5e_sqs2vport_stop(esw, rep);
561
562 if (devcom_locked)
563 mlx5_devcom_for_each_peer_end(esw->devcom);
564
565 return err;
566 }
567
568 static int
mlx5e_add_sqs_fwd_rules(struct mlx5e_priv * priv)569 mlx5e_add_sqs_fwd_rules(struct mlx5e_priv *priv)
570 {
571 int sqs_per_channel = mlx5e_get_dcb_num_tc(&priv->channels.params);
572 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
573 bool is_uplink_rep = mlx5e_is_uplink_rep(priv);
574 struct mlx5e_rep_priv *rpriv = priv->ppriv;
575 struct mlx5_eswitch_rep *rep = rpriv->rep;
576 int n, tc, nch, num_sqs = 0;
577 struct mlx5e_channel *c;
578 int err = -ENOMEM;
579 bool ptp_sq;
580 u32 *sqs;
581
582 ptp_sq = !!(priv->channels.ptp &&
583 MLX5E_GET_PFLAG(&priv->channels.params, MLX5E_PFLAG_TX_PORT_TS));
584 nch = priv->channels.num + ptp_sq;
585 /* +2 for xdpsqs, they don't exist on the ptp channel but will not be
586 * counted for by num_sqs.
587 */
588 if (is_uplink_rep)
589 sqs_per_channel += 2;
590
591 sqs = kvcalloc(nch * sqs_per_channel, sizeof(*sqs), GFP_KERNEL);
592 if (!sqs)
593 goto out;
594
595 for (n = 0; n < priv->channels.num; n++) {
596 c = priv->channels.c[n];
597 for (tc = 0; tc < c->num_tc; tc++)
598 sqs[num_sqs++] = c->sq[tc].sqn;
599
600 if (is_uplink_rep) {
601 if (c->xdp)
602 sqs[num_sqs++] = c->rq_xdpsq.sqn;
603
604 if (c->xdpsq)
605 sqs[num_sqs++] = c->xdpsq->sqn;
606 }
607 }
608 if (ptp_sq) {
609 struct mlx5e_ptp *ptp_ch = priv->channels.ptp;
610
611 for (tc = 0; tc < ptp_ch->num_tc; tc++)
612 sqs[num_sqs++] = ptp_ch->ptpsq[tc].txqsq.sqn;
613 }
614
615 err = mlx5e_sqs2vport_start(esw, rep, sqs, num_sqs);
616 kvfree(sqs);
617
618 out:
619 if (err)
620 netdev_warn(priv->netdev, "Failed to add SQs FWD rules %d\n", err);
621 return err;
622 }
623
624 static void
mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv * priv)625 mlx5e_remove_sqs_fwd_rules(struct mlx5e_priv *priv)
626 {
627 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
628 struct mlx5e_rep_priv *rpriv = priv->ppriv;
629 struct mlx5_eswitch_rep *rep = rpriv->rep;
630
631 mlx5e_sqs2vport_stop(esw, rep);
632 }
633
634 static int
mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv * priv)635 mlx5e_rep_add_meta_tunnel_rule(struct mlx5e_priv *priv)
636 {
637 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
638 struct mlx5e_rep_priv *rpriv = priv->ppriv;
639 struct mlx5_eswitch_rep *rep = rpriv->rep;
640 struct mlx5_flow_handle *flow_rule;
641 struct mlx5_flow_group *g;
642
643 g = esw->fdb_table.offloads.send_to_vport_meta_grp;
644 if (!g)
645 return 0;
646
647 flow_rule = mlx5_eswitch_add_send_to_vport_meta_rule(esw, rep->vport);
648 if (IS_ERR(flow_rule))
649 return PTR_ERR(flow_rule);
650
651 rpriv->send_to_vport_meta_rule = flow_rule;
652
653 return 0;
654 }
655
656 static void
mlx5e_rep_del_meta_tunnel_rule(struct mlx5e_priv * priv)657 mlx5e_rep_del_meta_tunnel_rule(struct mlx5e_priv *priv)
658 {
659 struct mlx5e_rep_priv *rpriv = priv->ppriv;
660
661 if (rpriv->send_to_vport_meta_rule)
662 mlx5_eswitch_del_send_to_vport_meta_rule(rpriv->send_to_vport_meta_rule);
663 }
664
mlx5e_rep_activate_channels(struct mlx5e_priv * priv)665 void mlx5e_rep_activate_channels(struct mlx5e_priv *priv)
666 {
667 mlx5e_add_sqs_fwd_rules(priv);
668 mlx5e_rep_add_meta_tunnel_rule(priv);
669 }
670
mlx5e_rep_deactivate_channels(struct mlx5e_priv * priv)671 void mlx5e_rep_deactivate_channels(struct mlx5e_priv *priv)
672 {
673 mlx5e_rep_del_meta_tunnel_rule(priv);
674 mlx5e_remove_sqs_fwd_rules(priv);
675 }
676
mlx5e_rep_open(struct net_device * dev)677 static int mlx5e_rep_open(struct net_device *dev)
678 {
679 struct mlx5e_priv *priv = netdev_priv(dev);
680 struct mlx5e_rep_priv *rpriv = priv->ppriv;
681 struct mlx5_eswitch_rep *rep = rpriv->rep;
682 int err;
683
684 mutex_lock(&priv->state_lock);
685 err = mlx5e_open_locked(dev);
686 if (err)
687 goto unlock;
688
689 if (!mlx5_modify_vport_admin_state(priv->mdev,
690 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
691 rep->vport, 1,
692 MLX5_VPORT_ADMIN_STATE_UP))
693 netif_carrier_on(dev);
694
695 unlock:
696 mutex_unlock(&priv->state_lock);
697 return err;
698 }
699
mlx5e_rep_close(struct net_device * dev)700 static int mlx5e_rep_close(struct net_device *dev)
701 {
702 struct mlx5e_priv *priv = netdev_priv(dev);
703 struct mlx5e_rep_priv *rpriv = priv->ppriv;
704 struct mlx5_eswitch_rep *rep = rpriv->rep;
705 int ret;
706
707 mutex_lock(&priv->state_lock);
708 mlx5_modify_vport_admin_state(priv->mdev,
709 MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
710 rep->vport, 1,
711 MLX5_VPORT_ADMIN_STATE_DOWN);
712 ret = mlx5e_close_locked(dev);
713 mutex_unlock(&priv->state_lock);
714 return ret;
715 }
716
mlx5e_is_uplink_rep(struct mlx5e_priv * priv)717 bool mlx5e_is_uplink_rep(struct mlx5e_priv *priv)
718 {
719 struct mlx5e_rep_priv *rpriv = priv->ppriv;
720 struct mlx5_eswitch_rep *rep;
721
722 if (!MLX5_ESWITCH_MANAGER(priv->mdev))
723 return false;
724
725 if (!rpriv) /* non vport rep mlx5e instances don't use this field */
726 return false;
727
728 rep = rpriv->rep;
729 return (rep->vport == MLX5_VPORT_UPLINK);
730 }
731
mlx5e_rep_has_offload_stats(const struct net_device * dev,int attr_id)732 bool mlx5e_rep_has_offload_stats(const struct net_device *dev, int attr_id)
733 {
734 switch (attr_id) {
735 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
736 return true;
737 }
738
739 return false;
740 }
741
742 static int
mlx5e_get_sw_stats64(const struct net_device * dev,struct rtnl_link_stats64 * stats)743 mlx5e_get_sw_stats64(const struct net_device *dev,
744 struct rtnl_link_stats64 *stats)
745 {
746 struct mlx5e_priv *priv = netdev_priv(dev);
747
748 mlx5e_fold_sw_stats64(priv, stats);
749 return 0;
750 }
751
mlx5e_rep_get_offload_stats(int attr_id,const struct net_device * dev,void * sp)752 int mlx5e_rep_get_offload_stats(int attr_id, const struct net_device *dev,
753 void *sp)
754 {
755 switch (attr_id) {
756 case IFLA_OFFLOAD_XSTATS_CPU_HIT:
757 return mlx5e_get_sw_stats64(dev, sp);
758 }
759
760 return -EINVAL;
761 }
762
763 static void
mlx5e_rep_get_stats(struct net_device * dev,struct rtnl_link_stats64 * stats)764 mlx5e_rep_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
765 {
766 struct mlx5e_priv *priv = netdev_priv(dev);
767
768 /* update HW stats in background for next time */
769 mlx5e_queue_update_stats(priv);
770 mlx5e_stats_copy_rep_stats(stats, &priv->stats.rep_stats);
771 }
772
mlx5e_rep_change_mtu(struct net_device * netdev,int new_mtu)773 static int mlx5e_rep_change_mtu(struct net_device *netdev, int new_mtu)
774 {
775 return mlx5e_change_mtu(netdev, new_mtu, NULL);
776 }
777
mlx5e_rep_change_carrier(struct net_device * dev,bool new_carrier)778 static int mlx5e_rep_change_carrier(struct net_device *dev, bool new_carrier)
779 {
780 struct mlx5e_priv *priv = netdev_priv(dev);
781 struct mlx5e_rep_priv *rpriv = priv->ppriv;
782 struct mlx5_eswitch_rep *rep = rpriv->rep;
783 int err;
784
785 if (new_carrier) {
786 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
787 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_UP);
788 if (err)
789 return err;
790 netif_carrier_on(dev);
791 } else {
792 err = mlx5_modify_vport_admin_state(priv->mdev, MLX5_VPORT_STATE_OP_MOD_ESW_VPORT,
793 rep->vport, 1, MLX5_VPORT_ADMIN_STATE_DOWN);
794 if (err)
795 return err;
796 netif_carrier_off(dev);
797 }
798 return 0;
799 }
800
801 static const struct net_device_ops mlx5e_netdev_ops_rep = {
802 .ndo_open = mlx5e_rep_open,
803 .ndo_stop = mlx5e_rep_close,
804 .ndo_start_xmit = mlx5e_xmit,
805 .ndo_setup_tc = mlx5e_rep_setup_tc,
806 .ndo_get_stats64 = mlx5e_rep_get_stats,
807 .ndo_has_offload_stats = mlx5e_rep_has_offload_stats,
808 .ndo_get_offload_stats = mlx5e_rep_get_offload_stats,
809 .ndo_change_mtu = mlx5e_rep_change_mtu,
810 .ndo_change_carrier = mlx5e_rep_change_carrier,
811 };
812
mlx5e_eswitch_uplink_rep(const struct net_device * netdev)813 bool mlx5e_eswitch_uplink_rep(const struct net_device *netdev)
814 {
815 return netdev->netdev_ops == &mlx5e_netdev_ops &&
816 mlx5e_is_uplink_rep(netdev_priv(netdev));
817 }
818
mlx5e_eswitch_vf_rep(const struct net_device * netdev)819 bool mlx5e_eswitch_vf_rep(const struct net_device *netdev)
820 {
821 return netdev->netdev_ops == &mlx5e_netdev_ops_rep;
822 }
823
824 /* One indirect TIR set for outer. Inner not supported in reps. */
825 #define REP_NUM_INDIR_TIRS MLX5E_NUM_INDIR_TIRS
826
mlx5e_rep_max_nch_limit(struct mlx5_core_dev * mdev)827 static int mlx5e_rep_max_nch_limit(struct mlx5_core_dev *mdev)
828 {
829 int max_tir_num = 1 << MLX5_CAP_GEN(mdev, log_max_tir);
830 int num_vports = mlx5_eswitch_get_total_vports(mdev);
831
832 return (max_tir_num - mlx5e_get_pf_num_tirs(mdev)
833 - (num_vports * REP_NUM_INDIR_TIRS)) / num_vports;
834 }
835
mlx5e_build_rep_params(struct net_device * netdev)836 static void mlx5e_build_rep_params(struct net_device *netdev)
837 {
838 const bool take_rtnl = netdev->reg_state == NETREG_REGISTERED;
839 struct mlx5e_priv *priv = netdev_priv(netdev);
840 struct mlx5e_rep_priv *rpriv = priv->ppriv;
841 struct mlx5_eswitch_rep *rep = rpriv->rep;
842 struct mlx5_core_dev *mdev = priv->mdev;
843 struct mlx5e_params *params;
844
845 params = &priv->channels.params;
846
847 params->num_channels = MLX5E_REP_PARAMS_DEF_NUM_CHANNELS;
848 params->hard_mtu = MLX5E_ETH_HARD_MTU;
849 params->sw_mtu = netdev->mtu;
850
851 /* SQ */
852 if (rep->vport == MLX5_VPORT_UPLINK)
853 params->log_sq_size = MLX5E_PARAMS_DEFAULT_LOG_SQ_SIZE;
854 else
855 params->log_sq_size = MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
856
857 /* RQ */
858 mlx5e_build_rq_params(mdev, params);
859 if (!mlx5e_is_uplink_rep(priv) && mlx5_core_is_ecpf(mdev))
860 params->log_rq_mtu_frames = MLX5E_REP_PARAMS_DEF_LOG_RQ_SIZE;
861
862 /* If netdev is already registered (e.g. move from nic profile to uplink,
863 * RTNL lock must be held before triggering netdev notifiers.
864 */
865 if (take_rtnl)
866 rtnl_lock();
867 /* update XDP supported features */
868 mlx5e_set_xdp_feature(netdev);
869 if (take_rtnl)
870 rtnl_unlock();
871
872 /* CQ moderation params */
873 params->rx_dim_enabled = MLX5_CAP_GEN(mdev, cq_moderation);
874 params->rx_moder_use_cqe_mode = !!MLX5_CAP_GEN(mdev, cq_period_start_from_cqe);
875
876 params->mqprio.num_tc = 1;
877 if (rep->vport != MLX5_VPORT_UPLINK)
878 params->vlan_strip_disable = true;
879
880 mlx5_query_min_inline(mdev, ¶ms->tx_min_inline_mode);
881 }
882
mlx5e_build_rep_netdev(struct net_device * netdev,struct mlx5_core_dev * mdev)883 static void mlx5e_build_rep_netdev(struct net_device *netdev,
884 struct mlx5_core_dev *mdev)
885 {
886 SET_NETDEV_DEV(netdev, mdev->device);
887 netdev->netdev_ops = &mlx5e_netdev_ops_rep;
888 eth_hw_addr_random(netdev);
889 netdev->ethtool_ops = &mlx5e_rep_ethtool_ops;
890
891 netdev->watchdog_timeo = 15 * HZ;
892 if (mlx5_core_is_ecpf(mdev))
893 netdev->tx_queue_len = 1 << MLX5E_REP_PARAMS_DEF_LOG_SQ_SIZE;
894
895 #if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
896 netdev->hw_features |= NETIF_F_HW_TC;
897 #endif
898 netdev->hw_features |= NETIF_F_SG;
899 netdev->hw_features |= NETIF_F_IP_CSUM;
900 netdev->hw_features |= NETIF_F_IPV6_CSUM;
901 netdev->hw_features |= NETIF_F_GRO;
902 netdev->hw_features |= NETIF_F_TSO;
903 netdev->hw_features |= NETIF_F_TSO6;
904 netdev->hw_features |= NETIF_F_RXCSUM;
905
906 netdev->features |= netdev->hw_features;
907
908 netdev->netns_immutable = true;
909 }
910
mlx5e_init_rep(struct mlx5_core_dev * mdev,struct net_device * netdev)911 static int mlx5e_init_rep(struct mlx5_core_dev *mdev,
912 struct net_device *netdev)
913 {
914 struct mlx5e_priv *priv = netdev_priv(netdev);
915
916 priv->fs =
917 mlx5e_fs_init(priv->profile, mdev,
918 !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
919 priv->dfs_root);
920 if (!priv->fs) {
921 netdev_err(priv->netdev, "FS allocation failed\n");
922 return -ENOMEM;
923 }
924
925 mlx5e_build_rep_params(netdev);
926 mlx5e_timestamp_init(priv);
927
928 return 0;
929 }
930
mlx5e_init_ul_rep(struct mlx5_core_dev * mdev,struct net_device * netdev)931 static int mlx5e_init_ul_rep(struct mlx5_core_dev *mdev,
932 struct net_device *netdev)
933 {
934 struct mlx5e_priv *priv = netdev_priv(netdev);
935
936 priv->dfs_root = debugfs_create_dir("nic",
937 mlx5_debugfs_get_dev_root(mdev));
938
939 priv->fs = mlx5e_fs_init(priv->profile, mdev,
940 !test_bit(MLX5E_STATE_DESTROYING, &priv->state),
941 priv->dfs_root);
942 if (!priv->fs) {
943 netdev_err(priv->netdev, "FS allocation failed\n");
944 debugfs_remove_recursive(priv->dfs_root);
945 return -ENOMEM;
946 }
947
948 mlx5e_vxlan_set_netdev_info(priv);
949 mlx5e_build_rep_params(netdev);
950 mlx5e_timestamp_init(priv);
951 return 0;
952 }
953
mlx5e_cleanup_rep(struct mlx5e_priv * priv)954 static void mlx5e_cleanup_rep(struct mlx5e_priv *priv)
955 {
956 mlx5e_fs_cleanup(priv->fs);
957 debugfs_remove_recursive(priv->dfs_root);
958 priv->fs = NULL;
959 }
960
mlx5e_create_rep_ttc_table(struct mlx5e_priv * priv)961 static int mlx5e_create_rep_ttc_table(struct mlx5e_priv *priv)
962 {
963 struct mlx5e_rep_priv *rpriv = priv->ppriv;
964 struct mlx5_eswitch_rep *rep = rpriv->rep;
965 struct ttc_params ttc_params = {};
966 int err;
967
968 mlx5e_fs_set_ns(priv->fs,
969 mlx5_get_flow_namespace(priv->mdev,
970 MLX5_FLOW_NAMESPACE_KERNEL), false);
971
972 /* The inner_ttc in the ttc params is intentionally not set */
973 mlx5e_set_ttc_params(priv->fs, priv->rx_res, &ttc_params, false);
974
975 if (rep->vport != MLX5_VPORT_UPLINK)
976 /* To give uplik rep TTC a lower level for chaining from root ft */
977 ttc_params.ft_attr.level = MLX5E_TTC_FT_LEVEL + 1;
978
979 mlx5e_fs_set_ttc(priv->fs, mlx5_create_ttc_table(priv->mdev, &ttc_params), false);
980 if (IS_ERR(mlx5e_fs_get_ttc(priv->fs, false))) {
981 err = PTR_ERR(mlx5e_fs_get_ttc(priv->fs, false));
982 netdev_err(priv->netdev, "Failed to create rep ttc table, err=%d\n",
983 err);
984 return err;
985 }
986 return 0;
987 }
988
mlx5e_create_rep_root_ft(struct mlx5e_priv * priv)989 static int mlx5e_create_rep_root_ft(struct mlx5e_priv *priv)
990 {
991 struct mlx5e_rep_priv *rpriv = priv->ppriv;
992 struct mlx5_eswitch_rep *rep = rpriv->rep;
993 struct mlx5_flow_table_attr ft_attr = {};
994 struct mlx5_flow_namespace *ns;
995 int err = 0;
996
997 if (rep->vport != MLX5_VPORT_UPLINK) {
998 /* non uplik reps will skip any bypass tables and go directly to
999 * their own ttc
1000 */
1001 rpriv->root_ft = mlx5_get_ttc_flow_table(mlx5e_fs_get_ttc(priv->fs, false));
1002 return 0;
1003 }
1004
1005 /* uplink root ft will be used to auto chain, to ethtool or ttc tables */
1006 ns = mlx5_get_flow_namespace(priv->mdev, MLX5_FLOW_NAMESPACE_OFFLOADS);
1007 if (!ns) {
1008 netdev_err(priv->netdev, "Failed to get reps offloads namespace\n");
1009 return -EOPNOTSUPP;
1010 }
1011
1012 ft_attr.max_fte = 0; /* Empty table, miss rule will always point to next table */
1013 ft_attr.prio = 1;
1014 ft_attr.level = 1;
1015
1016 rpriv->root_ft = mlx5_create_flow_table(ns, &ft_attr);
1017 if (IS_ERR(rpriv->root_ft)) {
1018 err = PTR_ERR(rpriv->root_ft);
1019 rpriv->root_ft = NULL;
1020 }
1021
1022 return err;
1023 }
1024
mlx5e_destroy_rep_root_ft(struct mlx5e_priv * priv)1025 static void mlx5e_destroy_rep_root_ft(struct mlx5e_priv *priv)
1026 {
1027 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1028 struct mlx5_eswitch_rep *rep = rpriv->rep;
1029
1030 if (rep->vport != MLX5_VPORT_UPLINK)
1031 return;
1032 mlx5_destroy_flow_table(rpriv->root_ft);
1033 }
1034
mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv * priv)1035 static int mlx5e_create_rep_vport_rx_rule(struct mlx5e_priv *priv)
1036 {
1037 struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
1038 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1039 struct mlx5_eswitch_rep *rep = rpriv->rep;
1040 struct mlx5_flow_handle *flow_rule;
1041 struct mlx5_flow_destination dest;
1042
1043 dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
1044 dest.ft = rpriv->root_ft;
1045
1046 flow_rule = mlx5_eswitch_create_vport_rx_rule(esw, rep->vport, &dest);
1047 if (IS_ERR(flow_rule))
1048 return PTR_ERR(flow_rule);
1049 rpriv->vport_rx_rule = flow_rule;
1050 return 0;
1051 }
1052
rep_vport_rx_rule_destroy(struct mlx5e_priv * priv)1053 static void rep_vport_rx_rule_destroy(struct mlx5e_priv *priv)
1054 {
1055 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1056
1057 if (!rpriv->vport_rx_rule)
1058 return;
1059
1060 mlx5_del_flow_rules(rpriv->vport_rx_rule);
1061 rpriv->vport_rx_rule = NULL;
1062 }
1063
mlx5e_rep_bond_update(struct mlx5e_priv * priv,bool cleanup)1064 int mlx5e_rep_bond_update(struct mlx5e_priv *priv, bool cleanup)
1065 {
1066 rep_vport_rx_rule_destroy(priv);
1067
1068 return cleanup ? 0 : mlx5e_create_rep_vport_rx_rule(priv);
1069 }
1070
mlx5e_init_rep_rx(struct mlx5e_priv * priv)1071 static int mlx5e_init_rep_rx(struct mlx5e_priv *priv)
1072 {
1073 struct mlx5_core_dev *mdev = priv->mdev;
1074 int err;
1075
1076 mlx5e_fs_init_l2_addr(priv->fs, priv->netdev);
1077
1078 err = mlx5e_open_drop_rq(priv, &priv->drop_rq);
1079 if (err) {
1080 mlx5_core_err(mdev, "open drop rq failed, %d\n", err);
1081 goto err_free_fs;
1082 }
1083
1084 priv->rx_res = mlx5e_rx_res_create(priv->mdev, 0, priv->max_nch, priv->drop_rq.rqn,
1085 &priv->channels.params.packet_merge,
1086 priv->channels.params.num_channels);
1087 if (IS_ERR(priv->rx_res)) {
1088 err = PTR_ERR(priv->rx_res);
1089 mlx5_core_err(mdev, "Create rx resources failed, err=%d\n", err);
1090 goto err_close_drop_rq;
1091 }
1092
1093 err = mlx5e_create_rep_ttc_table(priv);
1094 if (err)
1095 goto err_destroy_rx_res;
1096
1097 err = mlx5e_create_rep_root_ft(priv);
1098 if (err)
1099 goto err_destroy_ttc_table;
1100
1101 err = mlx5e_create_rep_vport_rx_rule(priv);
1102 if (err)
1103 goto err_destroy_root_ft;
1104
1105 mlx5e_ethtool_init_steering(priv->fs);
1106
1107 return 0;
1108
1109 err_destroy_root_ft:
1110 mlx5e_destroy_rep_root_ft(priv);
1111 err_destroy_ttc_table:
1112 mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
1113 err_destroy_rx_res:
1114 mlx5e_rx_res_destroy(priv->rx_res);
1115 priv->rx_res = ERR_PTR(-EINVAL);
1116 err_close_drop_rq:
1117 mlx5e_close_drop_rq(&priv->drop_rq);
1118 err_free_fs:
1119 mlx5e_fs_cleanup(priv->fs);
1120 priv->fs = NULL;
1121 return err;
1122 }
1123
mlx5e_cleanup_rep_rx(struct mlx5e_priv * priv)1124 static void mlx5e_cleanup_rep_rx(struct mlx5e_priv *priv)
1125 {
1126 mlx5e_ethtool_cleanup_steering(priv->fs);
1127 rep_vport_rx_rule_destroy(priv);
1128 mlx5e_destroy_rep_root_ft(priv);
1129 mlx5_destroy_ttc_table(mlx5e_fs_get_ttc(priv->fs, false));
1130 mlx5e_rx_res_destroy(priv->rx_res);
1131 priv->rx_res = ERR_PTR(-EINVAL);
1132 mlx5e_close_drop_rq(&priv->drop_rq);
1133 }
1134
mlx5e_rep_mpesw_work(struct work_struct * work)1135 static void mlx5e_rep_mpesw_work(struct work_struct *work)
1136 {
1137 struct mlx5_rep_uplink_priv *uplink_priv =
1138 container_of(work, struct mlx5_rep_uplink_priv,
1139 mpesw_work);
1140 struct mlx5e_rep_priv *rpriv =
1141 container_of(uplink_priv, struct mlx5e_rep_priv,
1142 uplink_priv);
1143 struct mlx5e_priv *priv = netdev_priv(rpriv->netdev);
1144
1145 rep_vport_rx_rule_destroy(priv);
1146 mlx5e_create_rep_vport_rx_rule(priv);
1147 }
1148
mlx5e_init_ul_rep_rx(struct mlx5e_priv * priv)1149 static int mlx5e_init_ul_rep_rx(struct mlx5e_priv *priv)
1150 {
1151 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1152 int err;
1153
1154 mlx5e_create_q_counters(priv);
1155 err = mlx5e_init_rep_rx(priv);
1156 if (err)
1157 goto out;
1158
1159 mlx5e_tc_int_port_init_rep_rx(priv);
1160
1161 INIT_WORK(&rpriv->uplink_priv.mpesw_work, mlx5e_rep_mpesw_work);
1162
1163 out:
1164 return err;
1165 }
1166
mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv * priv)1167 static void mlx5e_cleanup_ul_rep_rx(struct mlx5e_priv *priv)
1168 {
1169 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1170
1171 cancel_work_sync(&rpriv->uplink_priv.mpesw_work);
1172 mlx5e_tc_int_port_cleanup_rep_rx(priv);
1173 mlx5e_cleanup_rep_rx(priv);
1174 mlx5e_destroy_q_counters(priv);
1175 }
1176
mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)1177 static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
1178 {
1179 struct mlx5_rep_uplink_priv *uplink_priv;
1180 struct net_device *netdev;
1181 struct mlx5e_priv *priv;
1182 int err;
1183
1184 netdev = rpriv->netdev;
1185 priv = netdev_priv(netdev);
1186 uplink_priv = &rpriv->uplink_priv;
1187
1188 err = mlx5e_rep_tc_init(rpriv);
1189 if (err)
1190 return err;
1191
1192 mlx5_init_port_tun_entropy(&uplink_priv->tun_entropy, priv->mdev);
1193
1194 mlx5e_rep_bond_init(rpriv);
1195 err = mlx5e_rep_tc_netdevice_event_register(rpriv);
1196 if (err) {
1197 mlx5_core_err(priv->mdev, "Failed to register netdev notifier, err: %d\n",
1198 err);
1199 goto err_event_reg;
1200 }
1201
1202 return 0;
1203
1204 err_event_reg:
1205 mlx5e_rep_bond_cleanup(rpriv);
1206 mlx5e_rep_tc_cleanup(rpriv);
1207 return err;
1208 }
1209
mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv * rpriv)1210 static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
1211 {
1212 mlx5e_rep_tc_netdevice_event_unregister(rpriv);
1213 mlx5e_rep_bond_cleanup(rpriv);
1214 mlx5e_rep_tc_cleanup(rpriv);
1215 }
1216
mlx5e_init_rep_tx(struct mlx5e_priv * priv)1217 static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
1218 {
1219 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1220 int err;
1221
1222 err = mlx5e_rep_neigh_init(rpriv);
1223 if (err)
1224 goto err_neigh_init;
1225
1226 if (rpriv->rep->vport == MLX5_VPORT_UPLINK) {
1227 err = mlx5e_init_uplink_rep_tx(rpriv);
1228 if (err)
1229 goto err_init_tx;
1230 }
1231
1232 err = mlx5e_tc_ht_init(&rpriv->tc_ht);
1233 if (err)
1234 goto err_ht_init;
1235
1236 return 0;
1237
1238 err_ht_init:
1239 if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
1240 mlx5e_cleanup_uplink_rep_tx(rpriv);
1241 err_init_tx:
1242 mlx5e_rep_neigh_cleanup(rpriv);
1243 err_neigh_init:
1244 return err;
1245 }
1246
mlx5e_cleanup_rep_tx(struct mlx5e_priv * priv)1247 static void mlx5e_cleanup_rep_tx(struct mlx5e_priv *priv)
1248 {
1249 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1250
1251 mlx5e_tc_ht_cleanup(&rpriv->tc_ht);
1252
1253 if (rpriv->rep->vport == MLX5_VPORT_UPLINK)
1254 mlx5e_cleanup_uplink_rep_tx(rpriv);
1255
1256 mlx5e_rep_neigh_cleanup(rpriv);
1257 }
1258
mlx5e_rep_enable(struct mlx5e_priv * priv)1259 static void mlx5e_rep_enable(struct mlx5e_priv *priv)
1260 {
1261 mlx5e_set_netdev_mtu_boundaries(priv);
1262 }
1263
mlx5e_rep_disable(struct mlx5e_priv * priv)1264 static void mlx5e_rep_disable(struct mlx5e_priv *priv)
1265 {
1266 }
1267
mlx5e_update_rep_rx(struct mlx5e_priv * priv)1268 static int mlx5e_update_rep_rx(struct mlx5e_priv *priv)
1269 {
1270 return 0;
1271 }
1272
mlx5e_rep_stats_update_ndo_stats(struct mlx5e_priv * priv)1273 static void mlx5e_rep_stats_update_ndo_stats(struct mlx5e_priv *priv)
1274 {
1275 mlx5e_stats_update_ndo_stats(priv);
1276 mlx5e_rep_update_vport_q_counter(priv);
1277 }
1278
mlx5e_rep_event_mpesw(struct mlx5e_priv * priv)1279 static int mlx5e_rep_event_mpesw(struct mlx5e_priv *priv)
1280 {
1281 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1282 struct mlx5_eswitch_rep *rep = rpriv->rep;
1283
1284 if (rep->vport != MLX5_VPORT_UPLINK)
1285 return NOTIFY_DONE;
1286
1287 queue_work(priv->wq, &rpriv->uplink_priv.mpesw_work);
1288
1289 return NOTIFY_OK;
1290 }
1291
uplink_rep_async_event(struct notifier_block * nb,unsigned long event,void * data)1292 static int uplink_rep_async_event(struct notifier_block *nb, unsigned long event, void *data)
1293 {
1294 struct mlx5e_priv *priv = container_of(nb, struct mlx5e_priv, events_nb);
1295
1296 if (event == MLX5_EVENT_TYPE_PORT_CHANGE) {
1297 struct mlx5_eqe *eqe = data;
1298
1299 switch (eqe->sub_type) {
1300 case MLX5_PORT_CHANGE_SUBTYPE_DOWN:
1301 case MLX5_PORT_CHANGE_SUBTYPE_ACTIVE:
1302 queue_work(priv->wq, &priv->update_carrier_work);
1303 break;
1304 default:
1305 return NOTIFY_DONE;
1306 }
1307
1308 return NOTIFY_OK;
1309 }
1310
1311 if (event == MLX5_DEV_EVENT_PORT_AFFINITY)
1312 return mlx5e_rep_tc_event_port_affinity(priv);
1313 else if (event == MLX5_DEV_EVENT_MULTIPORT_ESW)
1314 return mlx5e_rep_event_mpesw(priv);
1315
1316 return NOTIFY_DONE;
1317 }
1318
mlx5e_uplink_rep_enable(struct mlx5e_priv * priv)1319 static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
1320 {
1321 struct net_device *netdev = priv->netdev;
1322 struct mlx5_core_dev *mdev = priv->mdev;
1323 u16 max_mtu;
1324
1325 mlx5e_ipsec_init(priv);
1326
1327 netdev->min_mtu = ETH_MIN_MTU;
1328 mlx5_query_port_max_mtu(priv->mdev, &max_mtu, 1);
1329 netdev->max_mtu = MLX5E_HW2SW_MTU(&priv->channels.params, max_mtu);
1330 mlx5e_set_dev_port_mtu(priv);
1331
1332 mlx5e_rep_tc_enable(priv);
1333
1334 if (MLX5_CAP_GEN(mdev, uplink_follow))
1335 mlx5_modify_vport_admin_state(mdev, MLX5_VPORT_STATE_OP_MOD_UPLINK,
1336 0, 0, MLX5_VPORT_ADMIN_STATE_AUTO);
1337 mlx5_lag_add_netdev(mdev, netdev);
1338 priv->events_nb.notifier_call = uplink_rep_async_event;
1339 mlx5_notifier_register(mdev, &priv->events_nb);
1340 mlx5e_dcbnl_initialize(priv);
1341 mlx5e_dcbnl_init_app(priv);
1342 mlx5e_rep_bridge_init(priv);
1343
1344 netdev->wanted_features |= NETIF_F_HW_TC;
1345
1346 rtnl_lock();
1347 if (netif_running(netdev))
1348 mlx5e_open(netdev);
1349 udp_tunnel_nic_reset_ntf(priv->netdev);
1350 netif_device_attach(netdev);
1351 rtnl_unlock();
1352 }
1353
mlx5e_uplink_rep_disable(struct mlx5e_priv * priv)1354 static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
1355 {
1356 struct mlx5_core_dev *mdev = priv->mdev;
1357
1358 rtnl_lock();
1359 if (netif_running(priv->netdev))
1360 mlx5e_close(priv->netdev);
1361 netif_device_detach(priv->netdev);
1362 rtnl_unlock();
1363
1364 mlx5e_rep_bridge_cleanup(priv);
1365 mlx5e_dcbnl_delete_app(priv);
1366 mlx5_notifier_unregister(mdev, &priv->events_nb);
1367 mlx5e_rep_tc_disable(priv);
1368 mlx5_lag_remove_netdev(mdev, priv->netdev);
1369 mlx5_vxlan_reset_to_default(mdev->vxlan);
1370
1371 mlx5e_ipsec_cleanup(priv);
1372 }
1373
1374 static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);
1375 static MLX5E_DEFINE_STATS_GRP(vport_rep, MLX5E_NDO_UPDATE_STATS);
1376
1377 /* The stats groups order is opposite to the update_stats() order calls */
1378 static mlx5e_stats_grp_t mlx5e_rep_stats_grps[] = {
1379 &MLX5E_STATS_GRP(sw_rep),
1380 &MLX5E_STATS_GRP(vport_rep),
1381 };
1382
mlx5e_rep_stats_grps_num(struct mlx5e_priv * priv)1383 static unsigned int mlx5e_rep_stats_grps_num(struct mlx5e_priv *priv)
1384 {
1385 return ARRAY_SIZE(mlx5e_rep_stats_grps);
1386 }
1387
1388 /* The stats groups order is opposite to the update_stats() order calls */
1389 static mlx5e_stats_grp_t mlx5e_ul_rep_stats_grps[] = {
1390 &MLX5E_STATS_GRP(sw),
1391 &MLX5E_STATS_GRP(qcnt),
1392 &MLX5E_STATS_GRP(vnic_env),
1393 &MLX5E_STATS_GRP(vport),
1394 &MLX5E_STATS_GRP(802_3),
1395 &MLX5E_STATS_GRP(2863),
1396 &MLX5E_STATS_GRP(2819),
1397 &MLX5E_STATS_GRP(phy),
1398 &MLX5E_STATS_GRP(eth_ext),
1399 &MLX5E_STATS_GRP(pcie),
1400 &MLX5E_STATS_GRP(per_prio),
1401 &MLX5E_STATS_GRP(pme),
1402 &MLX5E_STATS_GRP(channels),
1403 &MLX5E_STATS_GRP(per_port_buff_congest),
1404 #ifdef CONFIG_MLX5_EN_IPSEC
1405 &MLX5E_STATS_GRP(ipsec_hw),
1406 &MLX5E_STATS_GRP(ipsec_sw),
1407 #endif
1408 &MLX5E_STATS_GRP(ptp),
1409 };
1410
mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv * priv)1411 static unsigned int mlx5e_ul_rep_stats_grps_num(struct mlx5e_priv *priv)
1412 {
1413 return ARRAY_SIZE(mlx5e_ul_rep_stats_grps);
1414 }
1415
1416 static int
mlx5e_rep_vnic_reporter_diagnose(struct devlink_health_reporter * reporter,struct devlink_fmsg * fmsg,struct netlink_ext_ack * extack)1417 mlx5e_rep_vnic_reporter_diagnose(struct devlink_health_reporter *reporter,
1418 struct devlink_fmsg *fmsg,
1419 struct netlink_ext_ack *extack)
1420 {
1421 struct mlx5e_rep_priv *rpriv = devlink_health_reporter_priv(reporter);
1422 struct mlx5_eswitch_rep *rep = rpriv->rep;
1423
1424 mlx5_reporter_vnic_diagnose_counters(rep->esw->dev, fmsg, rep->vport,
1425 true);
1426 return 0;
1427 }
1428
1429 static const struct devlink_health_reporter_ops mlx5_rep_vnic_reporter_ops = {
1430 .name = "vnic",
1431 .diagnose = mlx5e_rep_vnic_reporter_diagnose,
1432 };
1433
mlx5e_rep_vnic_reporter_create(struct mlx5e_priv * priv,struct devlink_port * dl_port)1434 static void mlx5e_rep_vnic_reporter_create(struct mlx5e_priv *priv,
1435 struct devlink_port *dl_port)
1436 {
1437 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1438 struct devlink_health_reporter *reporter;
1439
1440 reporter = devl_port_health_reporter_create(dl_port,
1441 &mlx5_rep_vnic_reporter_ops,
1442 0, rpriv);
1443 if (IS_ERR(reporter)) {
1444 mlx5_core_err(priv->mdev,
1445 "Failed to create representor vnic reporter, err = %ld\n",
1446 PTR_ERR(reporter));
1447 return;
1448 }
1449
1450 rpriv->rep_vnic_reporter = reporter;
1451 }
1452
mlx5e_rep_vnic_reporter_destroy(struct mlx5e_priv * priv)1453 static void mlx5e_rep_vnic_reporter_destroy(struct mlx5e_priv *priv)
1454 {
1455 struct mlx5e_rep_priv *rpriv = priv->ppriv;
1456
1457 if (!IS_ERR_OR_NULL(rpriv->rep_vnic_reporter))
1458 devl_health_reporter_destroy(rpriv->rep_vnic_reporter);
1459 }
1460
1461 static const struct mlx5e_profile mlx5e_rep_profile = {
1462 .init = mlx5e_init_rep,
1463 .cleanup = mlx5e_cleanup_rep,
1464 .init_rx = mlx5e_init_rep_rx,
1465 .cleanup_rx = mlx5e_cleanup_rep_rx,
1466 .init_tx = mlx5e_init_rep_tx,
1467 .cleanup_tx = mlx5e_cleanup_rep_tx,
1468 .enable = mlx5e_rep_enable,
1469 .disable = mlx5e_rep_disable,
1470 .update_rx = mlx5e_update_rep_rx,
1471 .update_stats = mlx5e_rep_stats_update_ndo_stats,
1472 .rx_handlers = &mlx5e_rx_handlers_rep,
1473 .max_tc = 1,
1474 .stats_grps = mlx5e_rep_stats_grps,
1475 .stats_grps_num = mlx5e_rep_stats_grps_num,
1476 .max_nch_limit = mlx5e_rep_max_nch_limit,
1477 };
1478
1479 static const struct mlx5e_profile mlx5e_uplink_rep_profile = {
1480 .init = mlx5e_init_ul_rep,
1481 .cleanup = mlx5e_cleanup_rep,
1482 .init_rx = mlx5e_init_ul_rep_rx,
1483 .cleanup_rx = mlx5e_cleanup_ul_rep_rx,
1484 .init_tx = mlx5e_init_rep_tx,
1485 .cleanup_tx = mlx5e_cleanup_rep_tx,
1486 .enable = mlx5e_uplink_rep_enable,
1487 .disable = mlx5e_uplink_rep_disable,
1488 .update_rx = mlx5e_update_rep_rx,
1489 .update_stats = mlx5e_stats_update_ndo_stats,
1490 .update_carrier = mlx5e_update_carrier,
1491 .rx_handlers = &mlx5e_rx_handlers_rep,
1492 .max_tc = MLX5_MAX_NUM_TC,
1493 .stats_grps = mlx5e_ul_rep_stats_grps,
1494 .stats_grps_num = mlx5e_ul_rep_stats_grps_num,
1495 };
1496
1497 /* e-Switch vport representors */
1498 static int
mlx5e_vport_uplink_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1499 mlx5e_vport_uplink_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1500 {
1501 struct mlx5e_priv *priv = netdev_priv(mlx5_uplink_netdev_get(dev));
1502 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1503
1504 rpriv->netdev = priv->netdev;
1505 return mlx5e_netdev_change_profile(priv, &mlx5e_uplink_rep_profile,
1506 rpriv);
1507 }
1508
1509 static void
mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv * rpriv)1510 mlx5e_vport_uplink_rep_unload(struct mlx5e_rep_priv *rpriv)
1511 {
1512 struct net_device *netdev = rpriv->netdev;
1513 struct mlx5e_priv *priv;
1514
1515 priv = netdev_priv(netdev);
1516
1517 /* This bit is set when using devlink to change eswitch mode from
1518 * switchdev to legacy. As need to keep uplink netdev ifindex, we
1519 * detach uplink representor profile and attach NIC profile only.
1520 * The netdev will be unregistered later when unload NIC auxiliary
1521 * driver for this case.
1522 * We explicitly block devlink eswitch mode change if any IPSec rules
1523 * offloaded, but can't block other cases, such as driver unload
1524 * and devlink reload. We have to unregister netdev before profile
1525 * change for those cases. This is to avoid resource leak because
1526 * the offloaded rules don't have the chance to be unoffloaded before
1527 * cleanup which is triggered by detach uplink representor profile.
1528 */
1529 if (!(priv->mdev->priv.flags & MLX5_PRIV_FLAGS_SWITCH_LEGACY))
1530 unregister_netdev(netdev);
1531
1532 mlx5e_netdev_attach_nic_profile(priv);
1533 }
1534
1535 static int
mlx5e_vport_vf_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1536 mlx5e_vport_vf_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1537 {
1538 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1539 const struct mlx5e_profile *profile;
1540 struct devlink_port *dl_port;
1541 struct net_device *netdev;
1542 struct mlx5e_priv *priv;
1543 int err;
1544
1545 profile = &mlx5e_rep_profile;
1546 netdev = mlx5e_create_netdev(dev, profile);
1547 if (!netdev) {
1548 mlx5_core_warn(dev,
1549 "Failed to create representor netdev for vport %d\n",
1550 rep->vport);
1551 return -EINVAL;
1552 }
1553
1554 mlx5e_build_rep_netdev(netdev, dev);
1555 rpriv->netdev = netdev;
1556
1557 priv = netdev_priv(netdev);
1558 priv->profile = profile;
1559 priv->ppriv = rpriv;
1560 err = profile->init(dev, netdev);
1561 if (err) {
1562 netdev_warn(netdev, "rep profile init failed, %d\n", err);
1563 goto err_destroy_netdev;
1564 }
1565
1566 err = mlx5e_attach_netdev(netdev_priv(netdev));
1567 if (err) {
1568 netdev_warn(netdev,
1569 "Failed to attach representor netdev for vport %d\n",
1570 rep->vport);
1571 goto err_cleanup_profile;
1572 }
1573
1574 dl_port = mlx5_esw_offloads_devlink_port(dev->priv.eswitch,
1575 rpriv->rep->vport);
1576 if (!IS_ERR(dl_port)) {
1577 SET_NETDEV_DEVLINK_PORT(netdev, dl_port);
1578 mlx5e_rep_vnic_reporter_create(priv, dl_port);
1579 }
1580
1581 err = register_netdev(netdev);
1582 if (err) {
1583 netdev_warn(netdev,
1584 "Failed to register representor netdev for vport %d\n",
1585 rep->vport);
1586 goto err_detach_netdev;
1587 }
1588
1589 return 0;
1590
1591 err_detach_netdev:
1592 mlx5e_rep_vnic_reporter_destroy(priv);
1593 mlx5e_detach_netdev(netdev_priv(netdev));
1594 err_cleanup_profile:
1595 priv->profile->cleanup(priv);
1596
1597 err_destroy_netdev:
1598 mlx5e_destroy_netdev(netdev_priv(netdev));
1599 return err;
1600 }
1601
1602 static int
mlx5e_vport_rep_load(struct mlx5_core_dev * dev,struct mlx5_eswitch_rep * rep)1603 mlx5e_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
1604 {
1605 struct mlx5e_rep_priv *rpriv;
1606 int err;
1607
1608 rpriv = kvzalloc(sizeof(*rpriv), GFP_KERNEL);
1609 if (!rpriv)
1610 return -ENOMEM;
1611
1612 /* rpriv->rep to be looked up when profile->init() is called */
1613 rpriv->rep = rep;
1614 rep->rep_data[REP_ETH].priv = rpriv;
1615 INIT_LIST_HEAD(&rpriv->vport_sqs_list);
1616
1617 if (rep->vport == MLX5_VPORT_UPLINK)
1618 err = mlx5e_vport_uplink_rep_load(dev, rep);
1619 else
1620 err = mlx5e_vport_vf_rep_load(dev, rep);
1621
1622 if (err)
1623 kvfree(rpriv);
1624
1625 return err;
1626 }
1627
1628 static void
mlx5e_vport_rep_unload(struct mlx5_eswitch_rep * rep)1629 mlx5e_vport_rep_unload(struct mlx5_eswitch_rep *rep)
1630 {
1631 struct mlx5e_rep_priv *rpriv = mlx5e_rep_to_rep_priv(rep);
1632 struct net_device *netdev = rpriv->netdev;
1633 struct mlx5e_priv *priv = netdev_priv(netdev);
1634 void *ppriv = priv->ppriv;
1635
1636 if (rep->vport == MLX5_VPORT_UPLINK) {
1637 mlx5e_vport_uplink_rep_unload(rpriv);
1638 goto free_ppriv;
1639 }
1640
1641 unregister_netdev(netdev);
1642 mlx5e_rep_vnic_reporter_destroy(priv);
1643 mlx5e_detach_netdev(priv);
1644 priv->profile->cleanup(priv);
1645 mlx5e_destroy_netdev(priv);
1646 free_ppriv:
1647 kvfree(ppriv); /* mlx5e_rep_priv */
1648 }
1649
mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep * rep)1650 static void *mlx5e_vport_rep_get_proto_dev(struct mlx5_eswitch_rep *rep)
1651 {
1652 struct mlx5e_rep_priv *rpriv;
1653
1654 rpriv = mlx5e_rep_to_rep_priv(rep);
1655
1656 return rpriv->netdev;
1657 }
1658
mlx5e_vport_rep_event_unpair(struct mlx5_eswitch_rep * rep,struct mlx5_eswitch * peer_esw)1659 static void mlx5e_vport_rep_event_unpair(struct mlx5_eswitch_rep *rep,
1660 struct mlx5_eswitch *peer_esw)
1661 {
1662 u16 i = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
1663 struct mlx5e_rep_priv *rpriv;
1664 struct mlx5e_rep_sq *rep_sq;
1665
1666 WARN_ON_ONCE(!peer_esw);
1667 rpriv = mlx5e_rep_to_rep_priv(rep);
1668 list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
1669 struct mlx5e_rep_sq_peer *sq_peer = xa_load(&rep_sq->sq_peer, i);
1670
1671 if (!sq_peer || sq_peer->peer != peer_esw)
1672 continue;
1673
1674 mlx5_eswitch_del_send_to_vport_rule(sq_peer->rule);
1675 xa_erase(&rep_sq->sq_peer, i);
1676 kfree(sq_peer);
1677 }
1678 }
1679
mlx5e_vport_rep_event_pair(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,struct mlx5_eswitch * peer_esw)1680 static int mlx5e_vport_rep_event_pair(struct mlx5_eswitch *esw,
1681 struct mlx5_eswitch_rep *rep,
1682 struct mlx5_eswitch *peer_esw)
1683 {
1684 u16 i = MLX5_CAP_GEN(peer_esw->dev, vhca_id);
1685 struct mlx5_flow_handle *flow_rule;
1686 struct mlx5e_rep_sq_peer *sq_peer;
1687 struct mlx5e_rep_priv *rpriv;
1688 struct mlx5e_rep_sq *rep_sq;
1689 int err;
1690
1691 rpriv = mlx5e_rep_to_rep_priv(rep);
1692 list_for_each_entry(rep_sq, &rpriv->vport_sqs_list, list) {
1693 sq_peer = xa_load(&rep_sq->sq_peer, i);
1694
1695 if (sq_peer && sq_peer->peer)
1696 continue;
1697
1698 flow_rule = mlx5_eswitch_add_send_to_vport_rule(peer_esw, esw, rep,
1699 rep_sq->sqn);
1700 if (IS_ERR(flow_rule)) {
1701 err = PTR_ERR(flow_rule);
1702 goto err_out;
1703 }
1704
1705 if (sq_peer) {
1706 sq_peer->rule = flow_rule;
1707 sq_peer->peer = peer_esw;
1708 continue;
1709 }
1710 sq_peer = kzalloc(sizeof(*sq_peer), GFP_KERNEL);
1711 if (!sq_peer) {
1712 err = -ENOMEM;
1713 goto err_sq_alloc;
1714 }
1715 err = xa_insert(&rep_sq->sq_peer, i, sq_peer, GFP_KERNEL);
1716 if (err)
1717 goto err_xa;
1718 sq_peer->rule = flow_rule;
1719 sq_peer->peer = peer_esw;
1720 }
1721
1722 return 0;
1723 err_xa:
1724 kfree(sq_peer);
1725 err_sq_alloc:
1726 mlx5_eswitch_del_send_to_vport_rule(flow_rule);
1727 err_out:
1728 mlx5e_vport_rep_event_unpair(rep, peer_esw);
1729 return err;
1730 }
1731
mlx5e_vport_rep_event(struct mlx5_eswitch * esw,struct mlx5_eswitch_rep * rep,enum mlx5_switchdev_event event,void * data)1732 static int mlx5e_vport_rep_event(struct mlx5_eswitch *esw,
1733 struct mlx5_eswitch_rep *rep,
1734 enum mlx5_switchdev_event event,
1735 void *data)
1736 {
1737 int err = 0;
1738
1739 if (event == MLX5_SWITCHDEV_EVENT_PAIR)
1740 err = mlx5e_vport_rep_event_pair(esw, rep, data);
1741 else if (event == MLX5_SWITCHDEV_EVENT_UNPAIR)
1742 mlx5e_vport_rep_event_unpair(rep, data);
1743
1744 return err;
1745 }
1746
1747 static const struct mlx5_eswitch_rep_ops rep_ops = {
1748 .load = mlx5e_vport_rep_load,
1749 .unload = mlx5e_vport_rep_unload,
1750 .get_proto_dev = mlx5e_vport_rep_get_proto_dev,
1751 .event = mlx5e_vport_rep_event,
1752 };
1753
mlx5e_rep_probe(struct auxiliary_device * adev,const struct auxiliary_device_id * id)1754 static int mlx5e_rep_probe(struct auxiliary_device *adev,
1755 const struct auxiliary_device_id *id)
1756 {
1757 struct mlx5_adev *edev = container_of(adev, struct mlx5_adev, adev);
1758 struct mlx5_core_dev *mdev = edev->mdev;
1759 struct mlx5_eswitch *esw;
1760
1761 esw = mdev->priv.eswitch;
1762 mlx5_eswitch_register_vport_reps(esw, &rep_ops, REP_ETH);
1763 return 0;
1764 }
1765
mlx5e_rep_remove(struct auxiliary_device * adev)1766 static void mlx5e_rep_remove(struct auxiliary_device *adev)
1767 {
1768 struct mlx5_adev *vdev = container_of(adev, struct mlx5_adev, adev);
1769 struct mlx5_core_dev *mdev = vdev->mdev;
1770 struct mlx5_eswitch *esw;
1771
1772 esw = mdev->priv.eswitch;
1773 mlx5_eswitch_unregister_vport_reps(esw, REP_ETH);
1774 }
1775
1776 static const struct auxiliary_device_id mlx5e_rep_id_table[] = {
1777 { .name = MLX5_ADEV_NAME ".eth-rep", },
1778 {},
1779 };
1780
1781 MODULE_DEVICE_TABLE(auxiliary, mlx5e_rep_id_table);
1782
1783 static struct auxiliary_driver mlx5e_rep_driver = {
1784 .name = "eth-rep",
1785 .probe = mlx5e_rep_probe,
1786 .remove = mlx5e_rep_remove,
1787 .id_table = mlx5e_rep_id_table,
1788 };
1789
mlx5e_rep_init(void)1790 int mlx5e_rep_init(void)
1791 {
1792 return auxiliary_driver_register(&mlx5e_rep_driver);
1793 }
1794
mlx5e_rep_cleanup(void)1795 void mlx5e_rep_cleanup(void)
1796 {
1797 auxiliary_driver_unregister(&mlx5e_rep_driver);
1798 }
1799