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mlxsw: spectrum: Add support for getting kvdl occupancy

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Add support for getting the kvdl occupancy through the resource interface.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky 2018-01-15 08:59:09 +01:00 committed by David S. Miller
parent c0253a45fd
commit afadc26b3a
3 changed files with 36 additions and 0 deletions
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9
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View file

@ -4055,12 +4055,21 @@ mlxsw_sp_resource_kvd_hash_double_size_validate(struct devlink *devlink, u64 siz
return 0;
}
static u64 mlxsw_sp_resource_kvd_linear_occ_get(struct devlink *devlink)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core);
return mlxsw_sp_kvdl_occ_get(mlxsw_sp);
}
static struct devlink_resource_ops mlxsw_sp_resource_kvd_ops = {
.size_validate = mlxsw_sp_resource_kvd_size_validate,
};
static struct devlink_resource_ops mlxsw_sp_resource_kvd_linear_ops = {
.size_validate = mlxsw_sp_resource_kvd_linear_size_validate,
.occ_get = mlxsw_sp_resource_kvd_linear_occ_get,
};
static struct devlink_resource_ops mlxsw_sp_resource_kvd_hash_single_ops = {

1
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View file

@ -448,6 +448,7 @@ void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp, int entry_index);
int mlxsw_sp_kvdl_alloc_size_query(struct mlxsw_sp *mlxsw_sp,
unsigned int entry_count,
unsigned int *p_alloc_size);
u64 mlxsw_sp_kvdl_occ_get(const struct mlxsw_sp *mlxsw_sp);
struct mlxsw_sp_acl_rule_info {
unsigned int priority;

26
drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c
View file

@ -286,6 +286,32 @@ static void mlxsw_sp_kvdl_parts_fini(struct mlxsw_sp *mlxsw_sp)
mlxsw_sp_kvdl_part_fini(mlxsw_sp, i);
}
u64 mlxsw_sp_kvdl_part_occ(struct mlxsw_sp_kvdl_part *part)
{
unsigned int nr_entries;
int bit = -1;
u64 occ = 0;
nr_entries = (part->info->end_index -
part->info->start_index + 1) /
part->info->alloc_size;
while ((bit = find_next_bit(part->usage, nr_entries, bit + 1))
< nr_entries)
occ += part->info->alloc_size;
return occ;
}
u64 mlxsw_sp_kvdl_occ_get(const struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_kvdl_part *part;
u64 occ = 0;
list_for_each_entry(part, &mlxsw_sp->kvdl->parts_list, list)
occ += mlxsw_sp_kvdl_part_occ(part);
return occ;
}
int mlxsw_sp_kvdl_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_kvdl *kvdl;