Commit f17cc84d authored by Arkadi Sharshevsky's avatar Arkadi Sharshevsky Committed by David S. Miller
Browse files

mlxsw: spectrum_router: Add helpers for neighbor access 



This is done as a preparation before introducing the ability to dump the
host table via dpipe, and to count the table size. The mlxsw's neighbor
representative struct stays private to the router module.

Signed-off-by: default avatarArkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: default avatarJiri Pirko <jiri@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 35807324

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c

+36 −0
Original line number Diff line number Diff line
@@ -909,6 +909,42 @@ static const struct rhashtable_params mlxsw_sp_neigh_ht_params = { 
	.key_len = sizeof(struct mlxsw_sp_neigh_key),

};



struct mlxsw_sp_neigh_entry *

mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,

			struct mlxsw_sp_neigh_entry *neigh_entry)

{

	if (!neigh_entry) {

		if (list_empty(&rif->neigh_list))

			return NULL;

		else

			return list_first_entry(&rif->neigh_list,

						typeof(*neigh_entry),

						rif_list_node);

	}

	if (neigh_entry->rif_list_node.next == &rif->neigh_list)

		return NULL;

	return list_next_entry(neigh_entry, rif_list_node);

}



int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry)

{

	return neigh_entry->key.n->tbl->family;

}



unsigned char *

mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry)

{

	return neigh_entry->ha;

}



u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry)

{

	struct neighbour *n;



	n = neigh_entry->key.n;

	return ntohl(*((__be32 *) n->primary_key));

}



static struct mlxsw_sp_neigh_entry *

mlxsw_sp_neigh_entry_alloc(struct mlxsw_sp *mlxsw_sp, struct neighbour *n,

			   u16 rif)

drivers/net/ethernet/mellanox/mlxsw/spectrum_router.h

+13 −0
Original line number Diff line number Diff line
@@ -42,6 +42,8 @@ enum mlxsw_sp_rif_counter_dir { 
	MLXSW_SP_RIF_COUNTER_EGRESS,

};



struct mlxsw_sp_neigh_entry;



struct mlxsw_sp_rif *mlxsw_sp_rif_by_index(const struct mlxsw_sp *mlxsw_sp,

					   u16 rif_index);

u16 mlxsw_sp_rif_index(const struct mlxsw_sp_rif *rif);
@@ -56,5 +58,16 @@ void mlxsw_sp_rif_counter_free(struct mlxsw_sp *mlxsw_sp, 
int mlxsw_sp_rif_counter_alloc(struct mlxsw_sp *mlxsw_sp,

			       struct mlxsw_sp_rif *rif,

			       enum mlxsw_sp_rif_counter_dir dir);

struct mlxsw_sp_neigh_entry *

mlxsw_sp_rif_neigh_next(struct mlxsw_sp_rif *rif,

			struct mlxsw_sp_neigh_entry *neigh_entry);

int mlxsw_sp_neigh_entry_type(struct mlxsw_sp_neigh_entry *neigh_entry);

unsigned char *

mlxsw_sp_neigh_entry_ha(struct mlxsw_sp_neigh_entry *neigh_entry);

u32 mlxsw_sp_neigh4_entry_dip(struct mlxsw_sp_neigh_entry *neigh_entry);



#define mlxsw_sp_rif_neigh_for_each(neigh_entry, rif)				\

	for (neigh_entry = mlxsw_sp_rif_neigh_next(rif, NULL); neigh_entry;	\

	     neigh_entry = mlxsw_sp_rif_neigh_next(rif, neigh_entry))



#endif /* _MLXSW_ROUTER_H_*/

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