root/drivers/net/ethernet/mellanox/mlxsw/spectrum_span.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
   2 /* Copyright (c) 2018 Mellanox Technologies. All rights reserved */
   3 
   4 #ifndef _MLXSW_SPECTRUM_SPAN_H
   5 #define _MLXSW_SPECTRUM_SPAN_H
   6 
   7 #include <linux/types.h>
   8 #include <linux/if_ether.h>
   9 
  10 #include "spectrum_router.h"
  11 
  12 struct mlxsw_sp;
  13 struct mlxsw_sp_port;
  14 
  15 enum mlxsw_sp_span_type {
  16         MLXSW_SP_SPAN_EGRESS,
  17         MLXSW_SP_SPAN_INGRESS
  18 };
  19 
  20 struct mlxsw_sp_span_inspected_port {
  21         struct list_head list;
  22         enum mlxsw_sp_span_type type;
  23         u8 local_port;
  24 
  25         /* Whether this is a directly bound mirror (port-to-port) or an ACL. */
  26         bool bound;
  27 };
  28 
  29 struct mlxsw_sp_span_parms {
  30         struct mlxsw_sp_port *dest_port; /* NULL for unoffloaded SPAN. */
  31         unsigned int ttl;
  32         unsigned char dmac[ETH_ALEN];
  33         unsigned char smac[ETH_ALEN];
  34         union mlxsw_sp_l3addr daddr;
  35         union mlxsw_sp_l3addr saddr;
  36         u16 vid;
  37 };
  38 
  39 struct mlxsw_sp_span_entry_ops;
  40 
  41 struct mlxsw_sp_span_entry {
  42         const struct net_device *to_dev;
  43         const struct mlxsw_sp_span_entry_ops *ops;
  44         struct mlxsw_sp_span_parms parms;
  45         struct list_head bound_ports_list;
  46         int ref_count;
  47         int id;
  48 };
  49 
  50 struct mlxsw_sp_span_entry_ops {
  51         bool (*can_handle)(const struct net_device *to_dev);
  52         int (*parms)(const struct net_device *to_dev,
  53                      struct mlxsw_sp_span_parms *sparmsp);
  54         int (*configure)(struct mlxsw_sp_span_entry *span_entry,
  55                          struct mlxsw_sp_span_parms sparms);
  56         void (*deconfigure)(struct mlxsw_sp_span_entry *span_entry);
  57 };
  58 
  59 int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp);
  60 void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp);
  61 void mlxsw_sp_span_respin(struct mlxsw_sp *mlxsw_sp);
  62 
  63 int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from,
  64                              const struct net_device *to_dev,
  65                              enum mlxsw_sp_span_type type,
  66                              bool bind, int *p_span_id);
  67 void mlxsw_sp_span_mirror_del(struct mlxsw_sp_port *from, int span_id,
  68                               enum mlxsw_sp_span_type type, bool bind);
  69 struct mlxsw_sp_span_entry *
  70 mlxsw_sp_span_entry_find_by_port(struct mlxsw_sp *mlxsw_sp,
  71                                  const struct net_device *to_dev);
  72 
  73 void mlxsw_sp_span_entry_invalidate(struct mlxsw_sp *mlxsw_sp,
  74                                     struct mlxsw_sp_span_entry *span_entry);
  75 
  76 int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu);
  77 
  78 #endif