Release 4.7 drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
/*
* Copyright (c) 2015, Mellanox Technologies, Ltd. 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.
*/
#ifndef __MLX5_ESWITCH_H__
#define __MLX5_ESWITCH_H__
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/mlx5/device.h>
#define MLX5_MAX_UC_PER_VPORT(dev) \
(1 << MLX5_CAP_GEN(dev, log_max_current_uc_list))
#define MLX5_MAX_MC_PER_VPORT(dev) \
(1 << MLX5_CAP_GEN(dev, log_max_current_mc_list))
#define MLX5_L2_ADDR_HASH_SIZE (BIT(BITS_PER_BYTE))
#define MLX5_L2_ADDR_HASH(addr) (addr[5])
/* L2 -mac address based- hash helpers */
struct l2addr_node {
struct hlist_node hlist;
u8 addr[ETH_ALEN];
};
#define for_each_l2hash_node(hn, tmp, hash, i) \
for (i = 0; i < MLX5_L2_ADDR_HASH_SIZE; i++) \
hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist)
#define l2addr_hash_find(hash, mac, type) ({ \
int ix = MLX5_L2_ADDR_HASH(mac); \
bool found = false; \
type *ptr = NULL; \
\
hlist_for_each_entry(ptr, &hash[ix], node.hlist) \
if (ether_addr_equal(ptr->node.addr, mac)) {\
found = true; \
break; \
} \
if (!found) \
ptr = NULL; \
ptr; \
})
#define l2addr_hash_add(hash, mac, type, gfp) ({ \
int ix = MLX5_L2_ADDR_HASH(mac); \
type *ptr = NULL; \
\
ptr = kzalloc(sizeof(type), gfp); \
if (ptr) { \
ether_addr_copy(ptr->node.addr, mac); \
hlist_add_head(&ptr->node.hlist, &hash[ix]);\
} \
ptr; \
})
#define l2addr_hash_del(ptr) ({ \
hlist_del(&ptr->node.hlist); \
kfree(ptr); \
})
struct vport_ingress {
struct mlx5_flow_table *acl;
struct mlx5_flow_group *allow_untagged_spoofchk_grp;
struct mlx5_flow_group *allow_spoofchk_only_grp;
struct mlx5_flow_group *allow_untagged_only_grp;
struct mlx5_flow_group *drop_grp;
struct mlx5_flow_rule *allow_rule;
struct mlx5_flow_rule *drop_rule;
};
struct vport_egress {
struct mlx5_flow_table *acl;
struct mlx5_flow_group *allowed_vlans_grp;
struct mlx5_flow_group *drop_grp;
struct mlx5_flow_rule *allowed_vlan;
struct mlx5_flow_rule *drop_rule;
};
struct mlx5_vport {
struct mlx5_core_dev *dev;
int vport;
struct hlist_head uc_list[MLX5_L2_ADDR_HASH_SIZE];
struct hlist_head mc_list[MLX5_L2_ADDR_HASH_SIZE];
struct mlx5_flow_rule *promisc_rule;
struct mlx5_flow_rule *allmulti_rule;
struct work_struct vport_change_handler;
struct vport_ingress ingress;
struct vport_egress egress;
u16 vlan;
u8 qos;
bool spoofchk;
bool trusted;
bool enabled;
u16 enabled_events;
};
struct mlx5_l2_table {
struct hlist_head l2_hash[MLX5_L2_ADDR_HASH_SIZE];
u32 size;
unsigned long *bitmap;
};
struct mlx5_eswitch_fdb {
void *fdb;
struct mlx5_flow_group *addr_grp;
struct mlx5_flow_group *allmulti_grp;
struct mlx5_flow_group *promisc_grp;
};
struct mlx5_eswitch {
struct mlx5_core_dev *dev;
struct mlx5_l2_table l2_table;
struct mlx5_eswitch_fdb fdb_table;
struct hlist_head mc_table[MLX5_L2_ADDR_HASH_SIZE];
struct workqueue_struct *work_queue;
struct mlx5_vport *vports;
int total_vports;
int enabled_vports;
/* Synchronize between vport change events
* and async SRIOV admin state changes
*/
struct mutex state_lock;
struct esw_mc_addr *mc_promisc;
};
/* E-Switch API */
int mlx5_eswitch_init(struct mlx5_core_dev *dev);
void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw);
void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe);
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs);
void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw);
int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
int vport, u8 mac[ETH_ALEN]);
int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
int vport, int link_state);
int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
int vport, u16 vlan, u8 qos);
int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
int vport, bool spoofchk);
int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
int vport_num, bool setting);
int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
int vport, struct ifla_vf_info *ivi);
int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
int vport,
struct ifla_vf_stats *vf_stats);
#endif /* __MLX5_ESWITCH_H__ */
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