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, &params->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