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mlxsw: spectrum_kvdl: Add support for linear division resources

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The linear part of the KVD memory is sub-divided into multiple parts. This
patch exposes this internal partitions via 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
2018-02-20 08:44:22 +01:00
committed by David S. Miller
parent 4f4bbf7c4e
commit 51d3c08e33
3 changed files with 85 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
View File

@@ -3885,6 +3885,10 @@ static int mlxsw_sp_resources_register(struct mlxsw_core *mlxsw_core)
if (err)
return err;
err = mlxsw_sp_kvdl_resources_register(devlink);
if (err)
return err;
double_size = kvd_size - linear_size;
double_size *= profile->kvd_hash_double_parts;
double_size /= profile->kvd_hash_double_parts +

7
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@@ -70,12 +70,18 @@
#define MLXSW_SP_RESOURCE_NAME_KVD_LINEAR "linear"
#define MLXSW_SP_RESOURCE_NAME_KVD_HASH_SINGLE "hash_single"
#define MLXSW_SP_RESOURCE_NAME_KVD_HASH_DOUBLE "hash_double"
#define MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_SINGLES "singles"
#define MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_CHUNKS "chunks"
#define MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_LARGE_CHUNKS "large_chunks"
enum mlxsw_sp_resource_id {
MLXSW_SP_RESOURCE_KVD,
MLXSW_SP_RESOURCE_KVD_LINEAR,
MLXSW_SP_RESOURCE_KVD_HASH_SINGLE,
MLXSW_SP_RESOURCE_KVD_HASH_DOUBLE,
MLXSW_SP_RESOURCE_KVD_LINEAR_SINGLE,
MLXSW_SP_RESOURCE_KVD_LINEAR_CHUNKS,
MLXSW_SP_RESOURCE_KVD_LINEAR_LARGE_CHUNKS,
};
struct mlxsw_sp_port;
@@ -433,6 +439,7 @@ 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);
int mlxsw_sp_kvdl_resources_register(struct devlink *devlink);
struct mlxsw_sp_acl_rule_info {
unsigned int priority;

77
drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c
View File

@@ -188,21 +188,27 @@ int mlxsw_sp_kvdl_alloc_size_query(struct mlxsw_sp *mlxsw_sp,
return 0;
}
enum mlxsw_sp_kvdl_part_id {
MLXSW_SP_KVDL_PART_SINGLE,
MLXSW_SP_KVDL_PART_CHUNKS,
MLXSW_SP_KVDL_PART_LARGE_CHUNKS,
};
static const struct mlxsw_sp_kvdl_part_info kvdl_parts_info[] = {
{
.part_index = 0,
.part_index = MLXSW_SP_KVDL_PART_SINGLE,
.start_index = MLXSW_SP_KVDL_SINGLE_BASE,
.end_index = MLXSW_SP_KVDL_SINGLE_END,
.alloc_size = 1,
},
{
.part_index = 1,
.part_index = MLXSW_SP_KVDL_PART_CHUNKS,
.start_index = MLXSW_SP_KVDL_CHUNKS_BASE,
.end_index = MLXSW_SP_KVDL_CHUNKS_END,
.alloc_size = MLXSW_SP_CHUNK_MAX,
},
{
.part_index = 2,
.part_index = MLXSW_SP_KVDL_PART_LARGE_CHUNKS,
.start_index = MLXSW_SP_KVDL_LARGE_CHUNKS_BASE,
.end_index = MLXSW_SP_KVDL_LARGE_CHUNKS_END,
.alloc_size = MLXSW_SP_LARGE_CHUNK_MAX,
@@ -312,6 +318,71 @@ u64 mlxsw_sp_kvdl_occ_get(const struct mlxsw_sp *mlxsw_sp)
return occ;
}
static struct devlink_resource_size_params mlxsw_sp_kvdl_single_size_params = {
.size_min = 0,
.size_granularity = 1,
.unit = DEVLINK_RESOURCE_UNIT_ENTRY,
};
static struct devlink_resource_size_params mlxsw_sp_kvdl_chunks_size_params = {
.size_min = 0,
.size_granularity = MLXSW_SP_CHUNK_MAX,
.unit = DEVLINK_RESOURCE_UNIT_ENTRY,
};
static struct devlink_resource_size_params mlxsw_sp_kvdl_large_chunks_size_params = {
.size_min = 0,
.size_granularity = MLXSW_SP_LARGE_CHUNK_MAX,
.unit = DEVLINK_RESOURCE_UNIT_ENTRY,
};
static void
mlxsw_sp_kvdl_resource_size_params_prepare(struct devlink *devlink)
{
struct mlxsw_core *mlxsw_core = devlink_priv(devlink);
u32 kvdl_max_size;
kvdl_max_size = MLXSW_CORE_RES_GET(mlxsw_core, KVD_SIZE) -
MLXSW_CORE_RES_GET(mlxsw_core, KVD_SINGLE_MIN_SIZE) -
MLXSW_CORE_RES_GET(mlxsw_core, KVD_DOUBLE_MIN_SIZE);
mlxsw_sp_kvdl_single_size_params.size_max = kvdl_max_size;
mlxsw_sp_kvdl_chunks_size_params.size_max = kvdl_max_size;
mlxsw_sp_kvdl_large_chunks_size_params.size_max = kvdl_max_size;
}
int mlxsw_sp_kvdl_resources_register(struct devlink *devlink)
{
int err;
mlxsw_sp_kvdl_resource_size_params_prepare(devlink);
err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_SINGLES,
false, MLXSW_SP_KVDL_SINGLE_SIZE,
MLXSW_SP_RESOURCE_KVD_LINEAR_SINGLE,
MLXSW_SP_RESOURCE_KVD_LINEAR,
&mlxsw_sp_kvdl_single_size_params,
NULL);
if (err)
return err;
err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_CHUNKS,
false, MLXSW_SP_KVDL_CHUNKS_SIZE,
MLXSW_SP_RESOURCE_KVD_LINEAR_CHUNKS,
MLXSW_SP_RESOURCE_KVD_LINEAR,
&mlxsw_sp_kvdl_chunks_size_params,
NULL);
if (err)
return err;
err = devlink_resource_register(devlink, MLXSW_SP_RESOURCE_NAME_KVD_LINEAR_LARGE_CHUNKS,
false, MLXSW_SP_KVDL_LARGE_CHUNKS_SIZE,
MLXSW_SP_RESOURCE_KVD_LINEAR_LARGE_CHUNKS,
MLXSW_SP_RESOURCE_KVD_LINEAR,
&mlxsw_sp_kvdl_large_chunks_size_params,
NULL);
return err;
}
int mlxsw_sp_kvdl_init(struct mlxsw_sp *mlxsw_sp)
{
struct mlxsw_sp_kvdl *kvdl;