[linux-2.6-block.git] / drivers / net / ethernet / mellanox / mlx5 / core / en_tc.c

/*
 * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <net/flow_dissector.h>
#include <net/pkt_cls.h>
#include <net/tc_act/tc_gact.h>
#include <net/tc_act/tc_skbedit.h>
#include <linux/mlx5/fs.h>
#include <linux/mlx5/device.h>
#include <linux/rhashtable.h>
#include <net/switchdev.h>
#include <net/tc_act/tc_mirred.h>
#include <net/tc_act/tc_vlan.h>
#include "en.h"
#include "en_tc.h"
#include "eswitch.h"

struct mlx5e_tc_flow {
	struct rhash_head	node;
	u64			cookie;
	struct mlx5_flow_rule	*rule;
	struct mlx5_esw_flow_attr *attr;
};

#define MLX5E_TC_TABLE_NUM_ENTRIES 1024
#define MLX5E_TC_TABLE_NUM_GROUPS 4

static struct mlx5_flow_rule *mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
						    struct mlx5_flow_spec *spec,
						    u32 action, u32 flow_tag)
{
	struct mlx5_core_dev *dev = priv->mdev;
	struct mlx5_flow_destination dest = { 0 };
	struct mlx5_fc *counter = NULL;
	struct mlx5_flow_rule *rule;
	bool table_created = false;

	if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
		dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
		dest.ft = priv->fs.vlan.ft.t;
	} else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
		counter = mlx5_fc_create(dev, true);
		if (IS_ERR(counter))
			return ERR_CAST(counter);

		dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
		dest.counter = counter;
	}

	if (IS_ERR_OR_NULL(priv->fs.tc.t)) {
		priv->fs.tc.t =
			mlx5_create_auto_grouped_flow_table(priv->fs.ns,
							    MLX5E_TC_PRIO,
							    MLX5E_TC_TABLE_NUM_ENTRIES,
							    MLX5E_TC_TABLE_NUM_GROUPS,
							    0);
		if (IS_ERR(priv->fs.tc.t)) {
			netdev_err(priv->netdev,
				   "Failed to create tc offload table\n");
			rule = ERR_CAST(priv->fs.tc.t);
			goto err_create_ft;
		}

		table_created = true;
	}

	spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
	rule = mlx5_add_flow_rule(priv->fs.tc.t, spec,
				  action, flow_tag,
				  &dest);

	if (IS_ERR(rule))
		goto err_add_rule;

	return rule;

err_add_rule:
	if (table_created) {
		mlx5_destroy_flow_table(priv->fs.tc.t);
		priv->fs.tc.t = NULL;
	}
err_create_ft:
	mlx5_fc_destroy(dev, counter);

	return rule;
}

static struct mlx5_flow_rule *mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
						    struct mlx5_flow_spec *spec,
						    struct mlx5_esw_flow_attr *attr)
{
	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
	int err;

	err = mlx5_eswitch_add_vlan_action(esw, attr);
	if (err)
		return ERR_PTR(err);

	return mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
}

static void mlx5e_tc_del_flow(struct mlx5e_priv *priv,
			      struct mlx5_flow_rule *rule,
			      struct mlx5_esw_flow_attr *attr)
{
	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
	struct mlx5_fc *counter = NULL;

	counter = mlx5_flow_rule_counter(rule);

	if (esw && esw->mode == SRIOV_OFFLOADS)
		mlx5_eswitch_del_vlan_action(esw, attr);

	mlx5_del_flow_rule(rule);

	mlx5_fc_destroy(priv->mdev, counter);

	if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) {
		mlx5_destroy_flow_table(priv->fs.tc.t);
		priv->fs.tc.t = NULL;
	}
}

static int parse_cls_flower(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec,
			    struct tc_cls_flower_offload *f)
{
	void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
				       outer_headers);
	void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
				       outer_headers);
	u16 addr_type = 0;
	u8 ip_proto = 0;

	if (f->dissector->used_keys &
	    ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
	      BIT(FLOW_DISSECTOR_KEY_BASIC) |
	      BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
	      BIT(FLOW_DISSECTOR_KEY_PORTS))) {
		netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
			    f->dissector->used_keys);
		return -EOPNOTSUPP;
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
		struct flow_dissector_key_control *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_CONTROL,
						  f->key);
		addr_type = key->addr_type;
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
		struct flow_dissector_key_basic *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_BASIC,
						  f->key);
		struct flow_dissector_key_basic *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_BASIC,
						  f->mask);
		ip_proto = key->ip_proto;

		MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype,
			 ntohs(mask->n_proto));
		MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype,
			 ntohs(key->n_proto));

		MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol,
			 mask->ip_proto);
		MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
			 key->ip_proto);
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
		struct flow_dissector_key_eth_addrs *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
						  f->key);
		struct flow_dissector_key_eth_addrs *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_ETH_ADDRS,
						  f->mask);

		ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
					     dmac_47_16),
				mask->dst);
		ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
					     dmac_47_16),
				key->dst);

		ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
					     smac_47_16),
				mask->src);
		ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
					     smac_47_16),
				key->src);
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
		struct flow_dissector_key_ipv4_addrs *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
						  f->key);
		struct flow_dissector_key_ipv4_addrs *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_IPV4_ADDRS,
						  f->mask);

		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
				    src_ipv4_src_ipv6.ipv4_layout.ipv4),
		       &mask->src, sizeof(mask->src));
		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
				    src_ipv4_src_ipv6.ipv4_layout.ipv4),
		       &key->src, sizeof(key->src));
		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
				    dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
		       &mask->dst, sizeof(mask->dst));
		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
				    dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
		       &key->dst, sizeof(key->dst));
	}

	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
		struct flow_dissector_key_ipv6_addrs *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
						  f->key);
		struct flow_dissector_key_ipv6_addrs *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_IPV6_ADDRS,
						  f->mask);

		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
				    src_ipv4_src_ipv6.ipv6_layout.ipv6),
		       &mask->src, sizeof(mask->src));
		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
				    src_ipv4_src_ipv6.ipv6_layout.ipv6),
		       &key->src, sizeof(key->src));

		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
				    dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
		       &mask->dst, sizeof(mask->dst));
		memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
				    dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
		       &key->dst, sizeof(key->dst));
	}

	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
		struct flow_dissector_key_ports *key =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_PORTS,
						  f->key);
		struct flow_dissector_key_ports *mask =
			skb_flow_dissector_target(f->dissector,
						  FLOW_DISSECTOR_KEY_PORTS,
						  f->mask);
		switch (ip_proto) {
		case IPPROTO_TCP:
			MLX5_SET(fte_match_set_lyr_2_4, headers_c,
				 tcp_sport, ntohs(mask->src));
			MLX5_SET(fte_match_set_lyr_2_4, headers_v,
				 tcp_sport, ntohs(key->src));

			MLX5_SET(fte_match_set_lyr_2_4, headers_c,
				 tcp_dport, ntohs(mask->dst));
			MLX5_SET(fte_match_set_lyr_2_4, headers_v,
				 tcp_dport, ntohs(key->dst));
			break;

		case IPPROTO_UDP:
			MLX5_SET(fte_match_set_lyr_2_4, headers_c,
				 udp_sport, ntohs(mask->src));
			MLX5_SET(fte_match_set_lyr_2_4, headers_v,
				 udp_sport, ntohs(key->src));

			MLX5_SET(fte_match_set_lyr_2_4, headers_c,
				 udp_dport, ntohs(mask->dst));
			MLX5_SET(fte_match_set_lyr_2_4, headers_v,
				 udp_dport, ntohs(key->dst));
			break;
		default:
			netdev_err(priv->netdev,
				   "Only UDP and TCP transport are supported\n");
			return -EINVAL;
		}
	}

	return 0;
}

static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
				u32 *action, u32 *flow_tag)
{
	const struct tc_action *a;
	LIST_HEAD(actions);

	if (tc_no_actions(exts))
		return -EINVAL;

	*flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
	*action = 0;

	tcf_exts_to_list(exts, &actions);
	list_for_each_entry(a, &actions, list) {
		/* Only support a single action per rule */
		if (*action)
			return -EINVAL;

		if (is_tcf_gact_shot(a)) {
			*action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
			if (MLX5_CAP_FLOWTABLE(priv->mdev,
					       flow_table_properties_nic_receive.flow_counter))
				*action |= MLX5_FLOW_CONTEXT_ACTION_COUNT;
			continue;
		}

		if (is_tcf_skbedit_mark(a)) {
			u32 mark = tcf_skbedit_mark(a);

			if (mark & ~MLX5E_TC_FLOW_ID_MASK) {
				netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n",
					    mark);
				return -EINVAL;
			}

			*flow_tag = mark;
			*action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
			continue;
		}

		return -EINVAL;
	}

	return 0;
}

static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
				struct mlx5_esw_flow_attr *attr)
{
	const struct tc_action *a;
	LIST_HEAD(actions);

	if (tc_no_actions(exts))
		return -EINVAL;

	memset(attr, 0, sizeof(*attr));
	attr->in_rep = priv->ppriv;

	tcf_exts_to_list(exts, &actions);
	list_for_each_entry(a, &actions, list) {
		if (is_tcf_gact_shot(a)) {
			attr->action |= MLX5_FLOW_CONTEXT_ACTION_DROP |
					MLX5_FLOW_CONTEXT_ACTION_COUNT;
			continue;
		}

		if (is_tcf_mirred_redirect(a)) {
			int ifindex = tcf_mirred_ifindex(a);
			struct net_device *out_dev;
			struct mlx5e_priv *out_priv;

			out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex);

			if (!switchdev_port_same_parent_id(priv->netdev, out_dev)) {
				pr_err("devices %s %s not on same switch HW, can't offload forwarding\n",
				       priv->netdev->name, out_dev->name);
				return -EINVAL;
			}

			attr->action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
			out_priv = netdev_priv(out_dev);
			attr->out_rep = out_priv->ppriv;
			continue;
		}

		if (is_tcf_vlan(a)) {
			if (tcf_vlan_action(a) == VLAN_F_POP) {
				attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
			} else if (tcf_vlan_action(a) == VLAN_F_PUSH) {
				if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q))
					return -EOPNOTSUPP;

				attr->action |= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
				attr->vlan = tcf_vlan_push_vid(a);
			}
			continue;
		}

		return -EINVAL;
	}
	return 0;
}

int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol,
			   struct tc_cls_flower_offload *f)
{
	struct mlx5e_tc_table *tc = &priv->fs.tc;
	int err = 0;
	bool fdb_flow = false;
	u32 flow_tag, action;
	struct mlx5e_tc_flow *flow;
	struct mlx5_flow_spec *spec;
	struct mlx5_flow_rule *old = NULL;
	struct mlx5_esw_flow_attr *old_attr;
	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;

	if (esw && esw->mode == SRIOV_OFFLOADS)
		fdb_flow = true;

	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
				      tc->ht_params);
	if (flow) {
		old = flow->rule;
		old_attr = flow->attr;
	} else {
		if (fdb_flow)
			flow = kzalloc(sizeof(*flow) + sizeof(struct mlx5_esw_flow_attr),
				       GFP_KERNEL);
		else
			flow = kzalloc(sizeof(*flow), GFP_KERNEL);
	}

	spec = mlx5_vzalloc(sizeof(*spec));
	if (!spec || !flow) {
		err = -ENOMEM;
		goto err_free;
	}

	flow->cookie = f->cookie;

	err = parse_cls_flower(priv, spec, f);
	if (err < 0)
		goto err_free;

	if (fdb_flow) {
		flow->attr  = (struct mlx5_esw_flow_attr *)(flow + 1);
		err = parse_tc_fdb_actions(priv, f->exts, flow->attr);
		if (err < 0)
			goto err_free;
		flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr);
	} else {
		err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag);
		if (err < 0)
			goto err_free;
		flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag);
	}

	if (IS_ERR(flow->rule)) {
		err = PTR_ERR(flow->rule);
		goto err_free;
	}

	err = rhashtable_insert_fast(&tc->ht, &flow->node,
				     tc->ht_params);
	if (err)
		goto err_del_rule;

	if (old)
		mlx5e_tc_del_flow(priv, old, old_attr);

	goto out;

err_del_rule:
	mlx5_del_flow_rule(flow->rule);

err_free:
	if (!old)
		kfree(flow);
out:
	kvfree(spec);
	return err;
}

int mlx5e_delete_flower(struct mlx5e_priv *priv,
			struct tc_cls_flower_offload *f)
{
	struct mlx5e_tc_flow *flow;
	struct mlx5e_tc_table *tc = &priv->fs.tc;

	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
				      tc->ht_params);
	if (!flow)
		return -EINVAL;

	rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params);

	mlx5e_tc_del_flow(priv, flow->rule, flow->attr);

	kfree(flow);

	return 0;
}

int mlx5e_stats_flower(struct mlx5e_priv *priv,
		       struct tc_cls_flower_offload *f)
{
	struct mlx5e_tc_table *tc = &priv->fs.tc;
	struct mlx5e_tc_flow *flow;
	struct tc_action *a;
	struct mlx5_fc *counter;
	LIST_HEAD(actions);
	u64 bytes;
	u64 packets;
	u64 lastuse;

	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
				      tc->ht_params);
	if (!flow)
		return -EINVAL;

	counter = mlx5_flow_rule_counter(flow->rule);
	if (!counter)
		return 0;

	mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse);

	tcf_exts_to_list(f->exts, &actions);
	list_for_each_entry(a, &actions, list)
		tcf_action_stats_update(a, bytes, packets, lastuse);

	return 0;
}

static const struct rhashtable_params mlx5e_tc_flow_ht_params = {
	.head_offset = offsetof(struct mlx5e_tc_flow, node),
	.key_offset = offsetof(struct mlx5e_tc_flow, cookie),
	.key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie),
	.automatic_shrinking = true,
};

int mlx5e_tc_init(struct mlx5e_priv *priv)
{
	struct mlx5e_tc_table *tc = &priv->fs.tc;

	tc->ht_params = mlx5e_tc_flow_ht_params;
	return rhashtable_init(&tc->ht, &tc->ht_params);
}

static void _mlx5e_tc_del_flow(void *ptr, void *arg)
{
	struct mlx5e_tc_flow *flow = ptr;
	struct mlx5e_priv *priv = arg;

	mlx5e_tc_del_flow(priv, flow->rule, flow->attr);
	kfree(flow);
}

void mlx5e_tc_cleanup(struct mlx5e_priv *priv)
{
	struct mlx5e_tc_table *tc = &priv->fs.tc;

	rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv);

	if (!IS_ERR_OR_NULL(tc->t)) {
		mlx5_destroy_flow_table(tc->t);
		tc->t = NULL;
	}
}
Commit	Line	Data
e8f887ac AV	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
e3a2b7ed AV	33	#include <net/flow_dissector.h>
	34	#include <net/pkt_cls.h>
	35	#include <net/tc_act/tc_gact.h>
12185a9f	36	#include <net/tc_act/tc_skbedit.h>
e8f887ac AV	37	#include <linux/mlx5/fs.h>
	38	#include <linux/mlx5/device.h>
	39	#include <linux/rhashtable.h>
03a9d11e OG	40	#include <net/switchdev.h>
03a9d11e OG	41	#include <net/tc_act/tc_mirred.h>
776b12b6	42	#include <net/tc_act/tc_vlan.h>
e8f887ac AV	43	#include "en.h"
e8f887ac AV	44	#include "en_tc.h"
03a9d11e	45	#include "eswitch.h"
e8f887ac AV	46
	47	struct mlx5e_tc_flow {
	48	struct rhash_head node;
	49	u64 cookie;
	50	struct mlx5_flow_rule *rule;
776b12b6	51	struct mlx5_esw_flow_attr *attr;
e8f887ac AV	52	};
e8f887ac AV	53
acff797c MG	54	#define MLX5E_TC_TABLE_NUM_ENTRIES 1024
acff797c MG	55	#define MLX5E_TC_TABLE_NUM_GROUPS 4
e8f887ac	56
5c40348c OG	57	static struct mlx5_flow_rule mlx5e_tc_add_nic_flow(struct mlx5e_priv priv,
	58	struct mlx5_flow_spec *spec,
	59	u32 action, u32 flow_tag)
e8f887ac	60	{
aad7e08d AV	61	struct mlx5_core_dev *dev = priv->mdev;
	62	struct mlx5_flow_destination dest = { 0 };
	63	struct mlx5_fc *counter = NULL;
e8f887ac AV	64	struct mlx5_flow_rule *rule;
	65	bool table_created = false;
	66
aad7e08d AV	67	if (action & MLX5_FLOW_CONTEXT_ACTION_FWD_DEST) {
	68	dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
	69	dest.ft = priv->fs.vlan.ft.t;
55130287	70	} else if (action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
aad7e08d AV	71	counter = mlx5_fc_create(dev, true);
	72	if (IS_ERR(counter))
	73	return ERR_CAST(counter);
	74
	75	dest.type = MLX5_FLOW_DESTINATION_TYPE_COUNTER;
	76	dest.counter = counter;
	77	}
	78
acff797c MG	79	if (IS_ERR_OR_NULL(priv->fs.tc.t)) {
	80	priv->fs.tc.t =
	81	mlx5_create_auto_grouped_flow_table(priv->fs.ns,
	82	MLX5E_TC_PRIO,
	83	MLX5E_TC_TABLE_NUM_ENTRIES,
	84	MLX5E_TC_TABLE_NUM_GROUPS,
d63cd286	85	0);
acff797c	86	if (IS_ERR(priv->fs.tc.t)) {
e8f887ac AV	87	netdev_err(priv->netdev,
e8f887ac AV	88	"Failed to create tc offload table\n");
aad7e08d AV	89	rule = ERR_CAST(priv->fs.tc.t);
aad7e08d AV	90	goto err_create_ft;
e8f887ac AV	91	}
	92
	93	table_created = true;
	94	}
	95
c5bb1730 MG	96	spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
c5bb1730 MG	97	rule = mlx5_add_flow_rule(priv->fs.tc.t, spec,
e8f887ac	98	action, flow_tag,
aad7e08d AV	99	&dest);
	100
	101	if (IS_ERR(rule))
	102	goto err_add_rule;
	103
	104	return rule;
e8f887ac	105
aad7e08d AV	106	err_add_rule:
aad7e08d AV	107	if (table_created) {
acff797c MG	108	mlx5_destroy_flow_table(priv->fs.tc.t);
acff797c MG	109	priv->fs.tc.t = NULL;
e8f887ac	110	}
aad7e08d AV	111	err_create_ft:
aad7e08d AV	112	mlx5_fc_destroy(dev, counter);
e8f887ac AV	113
	114	return rule;
	115	}
	116
adb4c123 OG	117	static struct mlx5_flow_rule mlx5e_tc_add_fdb_flow(struct mlx5e_priv priv,
adb4c123 OG	118	struct mlx5_flow_spec *spec,
776b12b6	119	struct mlx5_esw_flow_attr *attr)
adb4c123 OG	120	{
adb4c123 OG	121	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
8b32580d OG	122	int err;
	123
	124	err = mlx5_eswitch_add_vlan_action(esw, attr);
	125	if (err)
	126	return ERR_PTR(err);
adb4c123	127
776b12b6	128	return mlx5_eswitch_add_offloaded_rule(esw, spec, attr);
adb4c123 OG	129	}
adb4c123 OG	130
e8f887ac	131	static void mlx5e_tc_del_flow(struct mlx5e_priv *priv,
8b32580d OG	132	struct mlx5_flow_rule *rule,
8b32580d OG	133	struct mlx5_esw_flow_attr *attr)
e8f887ac	134	{
8b32580d	135	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
aad7e08d AV	136	struct mlx5_fc *counter = NULL;
	137
	138	counter = mlx5_flow_rule_counter(rule);
	139
8b32580d OG	140	if (esw && esw->mode == SRIOV_OFFLOADS)
	141	mlx5_eswitch_del_vlan_action(esw, attr);
	142
e8f887ac AV	143	mlx5_del_flow_rule(rule);
e8f887ac AV	144
aad7e08d AV	145	mlx5_fc_destroy(priv->mdev, counter);
aad7e08d AV	146
5c40348c	147	if (!mlx5e_tc_num_filters(priv) && (priv->fs.tc.t)) {
acff797c MG	148	mlx5_destroy_flow_table(priv->fs.tc.t);
acff797c MG	149	priv->fs.tc.t = NULL;
e8f887ac AV	150	}
	151	}
	152
c5bb1730	153	static int parse_cls_flower(struct mlx5e_priv priv, struct mlx5_flow_spec spec,
e3a2b7ed AV	154	struct tc_cls_flower_offload *f)
e3a2b7ed AV	155	{
c5bb1730 MG	156	void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
	157	outer_headers);
	158	void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
	159	outer_headers);
e3a2b7ed AV	160	u16 addr_type = 0;
	161	u8 ip_proto = 0;
	162
	163	if (f->dissector->used_keys &
	164	~(BIT(FLOW_DISSECTOR_KEY_CONTROL) \|
	165	BIT(FLOW_DISSECTOR_KEY_BASIC) \|
	166	BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) \|
	167	BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) \|
	168	BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) \|
	169	BIT(FLOW_DISSECTOR_KEY_PORTS))) {
	170	netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
	171	f->dissector->used_keys);
	172	return -EOPNOTSUPP;
	173	}
	174
	175	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CONTROL)) {
	176	struct flow_dissector_key_control *key =
	177	skb_flow_dissector_target(f->dissector,
1dbd0d37	178	FLOW_DISSECTOR_KEY_CONTROL,
e3a2b7ed AV	179	f->key);
	180	addr_type = key->addr_type;
	181	}
	182
	183	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_BASIC)) {
	184	struct flow_dissector_key_basic *key =
	185	skb_flow_dissector_target(f->dissector,
	186	FLOW_DISSECTOR_KEY_BASIC,
	187	f->key);
	188	struct flow_dissector_key_basic *mask =
	189	skb_flow_dissector_target(f->dissector,
	190	FLOW_DISSECTOR_KEY_BASIC,
	191	f->mask);
	192	ip_proto = key->ip_proto;
	193
	194	MLX5_SET(fte_match_set_lyr_2_4, headers_c, ethertype,
	195	ntohs(mask->n_proto));
	196	MLX5_SET(fte_match_set_lyr_2_4, headers_v, ethertype,
	197	ntohs(key->n_proto));
	198
	199	MLX5_SET(fte_match_set_lyr_2_4, headers_c, ip_protocol,
	200	mask->ip_proto);
	201	MLX5_SET(fte_match_set_lyr_2_4, headers_v, ip_protocol,
	202	key->ip_proto);
	203	}
	204
	205	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
	206	struct flow_dissector_key_eth_addrs *key =
	207	skb_flow_dissector_target(f->dissector,
	208	FLOW_DISSECTOR_KEY_ETH_ADDRS,
	209	f->key);
	210	struct flow_dissector_key_eth_addrs *mask =
	211	skb_flow_dissector_target(f->dissector,
	212	FLOW_DISSECTOR_KEY_ETH_ADDRS,
	213	f->mask);
	214
	215	ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
	216	dmac_47_16),
	217	mask->dst);
	218	ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
	219	dmac_47_16),
	220	key->dst);
	221
	222	ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
	223	smac_47_16),
	224	mask->src);
	225	ether_addr_copy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
	226	smac_47_16),
	227	key->src);
	228	}
	229
	230	if (addr_type == FLOW_DISSECTOR_KEY_IPV4_ADDRS) {
	231	struct flow_dissector_key_ipv4_addrs *key =
	232	skb_flow_dissector_target(f->dissector,
	233	FLOW_DISSECTOR_KEY_IPV4_ADDRS,
	234	f->key);
	235	struct flow_dissector_key_ipv4_addrs *mask =
	236	skb_flow_dissector_target(f->dissector,
	237	FLOW_DISSECTOR_KEY_IPV4_ADDRS,
	238	f->mask);
	239
	240	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
	241	src_ipv4_src_ipv6.ipv4_layout.ipv4),
	242	&mask->src, sizeof(mask->src));
243	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
244	src_ipv4_src_ipv6.ipv4_layout.ipv4),
245	&key->src, sizeof(key->src));
246	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
247	dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
248	&mask->dst, sizeof(mask->dst));
249	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
250	dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
251	&key->dst, sizeof(key->dst));
252	}
253
254	if (addr_type == FLOW_DISSECTOR_KEY_IPV6_ADDRS) {
255	struct flow_dissector_key_ipv6_addrs *key =
256	skb_flow_dissector_target(f->dissector,
257	FLOW_DISSECTOR_KEY_IPV6_ADDRS,
258	f->key);
259	struct flow_dissector_key_ipv6_addrs *mask =
260	skb_flow_dissector_target(f->dissector,
261	FLOW_DISSECTOR_KEY_IPV6_ADDRS,
262	f->mask);
263
264	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
265	src_ipv4_src_ipv6.ipv6_layout.ipv6),
266	&mask->src, sizeof(mask->src));
267	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
268	src_ipv4_src_ipv6.ipv6_layout.ipv6),
269	&key->src, sizeof(key->src));
270
271	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_c,
272	dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
273	&mask->dst, sizeof(mask->dst));
274	memcpy(MLX5_ADDR_OF(fte_match_set_lyr_2_4, headers_v,
275	dst_ipv4_dst_ipv6.ipv6_layout.ipv6),
276	&key->dst, sizeof(key->dst));
277	}
278
279	if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_PORTS)) {
280	struct flow_dissector_key_ports *key =
281	skb_flow_dissector_target(f->dissector,
282	FLOW_DISSECTOR_KEY_PORTS,
283	f->key);
284	struct flow_dissector_key_ports *mask =
285	skb_flow_dissector_target(f->dissector,
286	FLOW_DISSECTOR_KEY_PORTS,
287	f->mask);
288	switch (ip_proto) {
289	case IPPROTO_TCP:
290	MLX5_SET(fte_match_set_lyr_2_4, headers_c,
291	tcp_sport, ntohs(mask->src));
292	MLX5_SET(fte_match_set_lyr_2_4, headers_v,
293	tcp_sport, ntohs(key->src));
294
295	MLX5_SET(fte_match_set_lyr_2_4, headers_c,
296	tcp_dport, ntohs(mask->dst));
297	MLX5_SET(fte_match_set_lyr_2_4, headers_v,
298	tcp_dport, ntohs(key->dst));
299	break;
300
301	case IPPROTO_UDP:
302	MLX5_SET(fte_match_set_lyr_2_4, headers_c,
303	udp_sport, ntohs(mask->src));
304	MLX5_SET(fte_match_set_lyr_2_4, headers_v,
305	udp_sport, ntohs(key->src));
306
307	MLX5_SET(fte_match_set_lyr_2_4, headers_c,
308	udp_dport, ntohs(mask->dst));
309	MLX5_SET(fte_match_set_lyr_2_4, headers_v,
310	udp_dport, ntohs(key->dst));
311	break;
312	default:
313	netdev_err(priv->netdev,
314	"Only UDP and TCP transport are supported\n");
315	return -EINVAL;
316	}
317	}
318
319	return 0;
320	}
321
5c40348c OG	322	static int parse_tc_nic_actions(struct mlx5e_priv priv, struct tcf_exts exts,
5c40348c OG	323	u32 action, u32 flow_tag)
e3a2b7ed AV	324	{
e3a2b7ed AV	325	const struct tc_action *a;
22dc13c8	326	LIST_HEAD(actions);
e3a2b7ed AV	327
	328	if (tc_no_actions(exts))
	329	return -EINVAL;
	330
	331	*flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
	332	*action = 0;
	333
22dc13c8 WC	334	tcf_exts_to_list(exts, &actions);
22dc13c8 WC	335	list_for_each_entry(a, &actions, list) {
e3a2b7ed AV	336	/* Only support a single action per rule */
	337	if (*action)
	338	return -EINVAL;
	339
	340	if (is_tcf_gact_shot(a)) {
	341	*action \|= MLX5_FLOW_CONTEXT_ACTION_DROP;
aad7e08d AV	342	if (MLX5_CAP_FLOWTABLE(priv->mdev,
	343	flow_table_properties_nic_receive.flow_counter))
	344	*action \|= MLX5_FLOW_CONTEXT_ACTION_COUNT;
e3a2b7ed AV	345	continue;
	346	}
	347
	348	if (is_tcf_skbedit_mark(a)) {
	349	u32 mark = tcf_skbedit_mark(a);
	350
	351	if (mark & ~MLX5E_TC_FLOW_ID_MASK) {
	352	netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n",
	353	mark);
	354	return -EINVAL;
	355	}
	356
	357	*flow_tag = mark;
	358	*action \|= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
	359	continue;
	360	}
	361
	362	return -EINVAL;
	363	}
	364
	365	return 0;
	366	}
	367
03a9d11e	368	static int parse_tc_fdb_actions(struct mlx5e_priv priv, struct tcf_exts exts,
776b12b6	369	struct mlx5_esw_flow_attr *attr)
03a9d11e OG	370	{
03a9d11e OG	371	const struct tc_action *a;
22dc13c8	372	LIST_HEAD(actions);
03a9d11e OG	373
	374	if (tc_no_actions(exts))
	375	return -EINVAL;
	376
776b12b6 OG	377	memset(attr, 0, sizeof(*attr));
776b12b6 OG	378	attr->in_rep = priv->ppriv;
03a9d11e	379
22dc13c8 WC	380	tcf_exts_to_list(exts, &actions);
22dc13c8 WC	381	list_for_each_entry(a, &actions, list) {
03a9d11e	382	if (is_tcf_gact_shot(a)) {
8b32580d OG	383	attr->action \|= MLX5_FLOW_CONTEXT_ACTION_DROP \|
8b32580d OG	384	MLX5_FLOW_CONTEXT_ACTION_COUNT;
03a9d11e OG	385	continue;
	386	}
	387
	388	if (is_tcf_mirred_redirect(a)) {
	389	int ifindex = tcf_mirred_ifindex(a);
	390	struct net_device *out_dev;
	391	struct mlx5e_priv *out_priv;
03a9d11e OG	392
	393	out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex);
	394
	395	if (!switchdev_port_same_parent_id(priv->netdev, out_dev)) {
	396	pr_err("devices %s %s not on same switch HW, can't offload forwarding\n",
	397	priv->netdev->name, out_dev->name);
	398	return -EINVAL;
	399	}
	400
8b32580d	401	attr->action \|= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
03a9d11e	402	out_priv = netdev_priv(out_dev);
776b12b6	403	attr->out_rep = out_priv->ppriv;
03a9d11e OG	404	continue;
	405	}
	406
8b32580d OG	407	if (is_tcf_vlan(a)) {
	408	if (tcf_vlan_action(a) == VLAN_F_POP) {
	409	attr->action \|= MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
	410	} else if (tcf_vlan_action(a) == VLAN_F_PUSH) {
	411	if (tcf_vlan_push_proto(a) != htons(ETH_P_8021Q))
	412	return -EOPNOTSUPP;
	413
	414	attr->action \|= MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH;
	415	attr->vlan = tcf_vlan_push_vid(a);
	416	}
	417	continue;
	418	}
	419
03a9d11e OG	420	return -EINVAL;
	421	}
	422	return 0;
	423	}
	424
e3a2b7ed AV	425	int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol,
	426	struct tc_cls_flower_offload *f)
	427	{
acff797c	428	struct mlx5e_tc_table *tc = &priv->fs.tc;
e3a2b7ed	429	int err = 0;
776b12b6 OG	430	bool fdb_flow = false;
776b12b6 OG	431	u32 flow_tag, action;
e3a2b7ed	432	struct mlx5e_tc_flow *flow;
c5bb1730	433	struct mlx5_flow_spec *spec;
e3a2b7ed	434	struct mlx5_flow_rule *old = NULL;
8b32580d	435	struct mlx5_esw_flow_attr *old_attr;
adb4c123	436	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
e3a2b7ed	437
776b12b6 OG	438	if (esw && esw->mode == SRIOV_OFFLOADS)
	439	fdb_flow = true;
	440
e3a2b7ed AV	441	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
e3a2b7ed AV	442	tc->ht_params);
776b12b6	443	if (flow) {
e3a2b7ed	444	old = flow->rule;
8b32580d	445	old_attr = flow->attr;
776b12b6 OG	446	} else {
	447	if (fdb_flow)
	448	flow = kzalloc(sizeof(*flow) + sizeof(struct mlx5_esw_flow_attr),
	449	GFP_KERNEL);
	450	else
	451	flow = kzalloc(sizeof(*flow), GFP_KERNEL);
	452	}
e3a2b7ed	453
c5bb1730 MG	454	spec = mlx5_vzalloc(sizeof(*spec));
c5bb1730 MG	455	if (!spec \|\| !flow) {
e3a2b7ed AV	456	err = -ENOMEM;
	457	goto err_free;
	458	}
	459
	460	flow->cookie = f->cookie;
	461
c5bb1730	462	err = parse_cls_flower(priv, spec, f);
e3a2b7ed AV	463	if (err < 0)
	464	goto err_free;
	465
776b12b6 OG	466	if (fdb_flow) {
	467	flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1);
	468	err = parse_tc_fdb_actions(priv, f->exts, flow->attr);
adb4c123 OG	469	if (err < 0)
adb4c123 OG	470	goto err_free;
776b12b6	471	flow->rule = mlx5e_tc_add_fdb_flow(priv, spec, flow->attr);
adb4c123 OG	472	} else {
	473	err = parse_tc_nic_actions(priv, f->exts, &action, &flow_tag);
	474	if (err < 0)
	475	goto err_free;
	476	flow->rule = mlx5e_tc_add_nic_flow(priv, spec, action, flow_tag);
	477	}
e3a2b7ed	478
e3a2b7ed AV	479	if (IS_ERR(flow->rule)) {
e3a2b7ed AV	480	err = PTR_ERR(flow->rule);
5c40348c	481	goto err_free;
e3a2b7ed AV	482	}
e3a2b7ed AV	483
5c40348c OG	484	err = rhashtable_insert_fast(&tc->ht, &flow->node,
	485	tc->ht_params);
	486	if (err)
	487	goto err_del_rule;
	488
e3a2b7ed	489	if (old)
8b32580d	490	mlx5e_tc_del_flow(priv, old, old_attr);
e3a2b7ed AV	491
	492	goto out;
	493
5c40348c OG	494	err_del_rule:
5c40348c OG	495	mlx5_del_flow_rule(flow->rule);
e3a2b7ed AV	496
	497	err_free:
	498	if (!old)
	499	kfree(flow);
	500	out:
c5bb1730	501	kvfree(spec);
e3a2b7ed AV	502	return err;
	503	}
	504
	505	int mlx5e_delete_flower(struct mlx5e_priv *priv,
	506	struct tc_cls_flower_offload *f)
	507	{
	508	struct mlx5e_tc_flow *flow;
acff797c	509	struct mlx5e_tc_table *tc = &priv->fs.tc;
e3a2b7ed AV	510
	511	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
	512	tc->ht_params);
	513	if (!flow)
	514	return -EINVAL;
	515
	516	rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params);
	517
8b32580d	518	mlx5e_tc_del_flow(priv, flow->rule, flow->attr);
e3a2b7ed AV	519
	520	kfree(flow);
	521
	522	return 0;
	523	}
	524
aad7e08d AV	525	int mlx5e_stats_flower(struct mlx5e_priv *priv,
	526	struct tc_cls_flower_offload *f)
	527	{
	528	struct mlx5e_tc_table *tc = &priv->fs.tc;
	529	struct mlx5e_tc_flow *flow;
	530	struct tc_action *a;
	531	struct mlx5_fc *counter;
22dc13c8	532	LIST_HEAD(actions);
aad7e08d AV	533	u64 bytes;
	534	u64 packets;
	535	u64 lastuse;
	536
	537	flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
	538	tc->ht_params);
	539	if (!flow)
	540	return -EINVAL;
	541
	542	counter = mlx5_flow_rule_counter(flow->rule);
	543	if (!counter)
	544	return 0;
	545
	546	mlx5_fc_query_cached(counter, &bytes, &packets, &lastuse);
	547
22dc13c8 WC	548	tcf_exts_to_list(f->exts, &actions);
22dc13c8 WC	549	list_for_each_entry(a, &actions, list)
aad7e08d AV	550	tcf_action_stats_update(a, bytes, packets, lastuse);
	551
	552	return 0;
	553	}
	554
e8f887ac AV	555	static const struct rhashtable_params mlx5e_tc_flow_ht_params = {
	556	.head_offset = offsetof(struct mlx5e_tc_flow, node),
	557	.key_offset = offsetof(struct mlx5e_tc_flow, cookie),
	558	.key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie),
	559	.automatic_shrinking = true,
	560	};
	561
	562	int mlx5e_tc_init(struct mlx5e_priv *priv)
	563	{
acff797c	564	struct mlx5e_tc_table *tc = &priv->fs.tc;
e8f887ac AV	565
	566	tc->ht_params = mlx5e_tc_flow_ht_params;
	567	return rhashtable_init(&tc->ht, &tc->ht_params);
	568	}
	569
	570	static void _mlx5e_tc_del_flow(void ptr, void arg)
	571	{
	572	struct mlx5e_tc_flow *flow = ptr;
	573	struct mlx5e_priv *priv = arg;
	574
8b32580d	575	mlx5e_tc_del_flow(priv, flow->rule, flow->attr);
e8f887ac AV	576	kfree(flow);
	577	}
	578
	579	void mlx5e_tc_cleanup(struct mlx5e_priv *priv)
	580	{
acff797c	581	struct mlx5e_tc_table *tc = &priv->fs.tc;
e8f887ac AV	582
	583	rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, priv);
	584
acff797c MG	585	if (!IS_ERR_OR_NULL(tc->t)) {
	586	mlx5_destroy_flow_table(tc->t);
	587	tc->t = NULL;
e8f887ac AV	588	}
e8f887ac AV	589	}