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mlxsw: spectrum: acl: Don't encode the key again in mlxsw_sp_acl_atcam_12kb_lkey_id_get()

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No need to do key encoding again in
mlxsw_sp_acl_atcam_12kb_lkey_id_get(). Instead of that, introduce
a new helper that would just clear unused blocks.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2018-11-14 08:22:32 +00:00 committed by David S. Miller
parent 3bc6f3858a
commit b1ce60e621
4 changed files with 49 additions and 14 deletions
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10
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.c
View File

@ -458,3 +458,13 @@ void mlxsw_afk_encode(struct mlxsw_afk *mlxsw_afk,
}
}
EXPORT_SYMBOL(mlxsw_afk_encode);
void mlxsw_afk_clear(struct mlxsw_afk *mlxsw_afk, char *key,
int block_start, int block_end)
{
int i;
for (i = block_start; i <= block_end; i++)
mlxsw_afk->ops->clear_block(key, i);
}
EXPORT_SYMBOL(mlxsw_afk_clear);

3
drivers/net/ethernet/mellanox/mlxsw/core_acl_flex_keys.h
View File

@ -189,6 +189,7 @@ struct mlxsw_afk_ops {
const struct mlxsw_afk_block *blocks;
unsigned int blocks_count;
void (*encode_block)(char *output, int block_index, char *block);
void (*clear_block)(char *output, int block_index);
};
struct mlxsw_afk *mlxsw_afk_create(unsigned int max_blocks,
@ -229,5 +230,7 @@ void mlxsw_afk_encode(struct mlxsw_afk *mlxsw_afk,
struct mlxsw_afk_key_info *key_info,
struct mlxsw_afk_element_values *values,
char *key, char *mask, int block_start, int block_end);
void mlxsw_afk_clear(struct mlxsw_afk *mlxsw_afk, char *key,
int block_start, int block_end);
#endif

22
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c
View File

@ -14,8 +14,8 @@
#include "spectrum_acl_tcam.h"
#include "core_acl_flex_keys.h"
#define MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_START 6
#define MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_END 11
#define MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_CLEAR_START 0
#define MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_CLEAR_END 5
struct mlxsw_sp_acl_atcam_lkey_id_ht_key {
char enc_key[MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN]; /* MSB blocks */
@ -34,7 +34,7 @@ struct mlxsw_sp_acl_atcam_region_ops {
void (*fini)(struct mlxsw_sp_acl_atcam_region *aregion);
struct mlxsw_sp_acl_atcam_lkey_id *
(*lkey_id_get)(struct mlxsw_sp_acl_atcam_region *aregion,
struct mlxsw_sp_acl_rule_info *rulei, u8 erp_id);
char *enc_key, u8 erp_id);
void (*lkey_id_put)(struct mlxsw_sp_acl_atcam_region *aregion,
struct mlxsw_sp_acl_atcam_lkey_id *lkey_id);
};
@ -90,8 +90,7 @@ mlxsw_sp_acl_atcam_region_generic_fini(struct mlxsw_sp_acl_atcam_region *aregion
static struct mlxsw_sp_acl_atcam_lkey_id *
mlxsw_sp_acl_atcam_generic_lkey_id_get(struct mlxsw_sp_acl_atcam_region *aregion,
struct mlxsw_sp_acl_rule_info *rulei,
u8 erp_id)
char *enc_key, u8 erp_id)
{
struct mlxsw_sp_acl_atcam_region_generic *region_generic;
@ -220,8 +219,7 @@ mlxsw_sp_acl_atcam_lkey_id_destroy(struct mlxsw_sp_acl_atcam_region *aregion,
static struct mlxsw_sp_acl_atcam_lkey_id *
mlxsw_sp_acl_atcam_12kb_lkey_id_get(struct mlxsw_sp_acl_atcam_region *aregion,
struct mlxsw_sp_acl_rule_info *rulei,
u8 erp_id)
char *enc_key, u8 erp_id)
{
struct mlxsw_sp_acl_atcam_region_12kb *region_12kb = aregion->priv;
struct mlxsw_sp_acl_tcam_region *region = aregion->region;
@ -230,9 +228,10 @@ mlxsw_sp_acl_atcam_12kb_lkey_id_get(struct mlxsw_sp_acl_atcam_region *aregion,
struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl);
struct mlxsw_sp_acl_atcam_lkey_id *lkey_id;
mlxsw_afk_encode(afk, region->key_info, &rulei->values, ht_key.enc_key,
NULL, MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_START,
MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_END);
memcpy(ht_key.enc_key, enc_key, sizeof(ht_key.enc_key));
mlxsw_afk_clear(afk, ht_key.enc_key,
MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_CLEAR_START,
MLXSW_SP_ACL_ATCAM_LKEY_ID_BLOCK_CLEAR_END);
ht_key.erp_id = erp_id;
lkey_id = rhashtable_lookup_fast(&region_12kb->lkey_ht, &ht_key,
mlxsw_sp_acl_atcam_lkey_id_ht_params);
@ -389,7 +388,8 @@ mlxsw_sp_acl_atcam_region_entry_insert(struct mlxsw_sp *mlxsw_sp,
if (err)
return err;
lkey_id = aregion->ops->lkey_id_get(aregion, rulei, erp_id);
lkey_id = aregion->ops->lkey_id_get(aregion, aentry->ht_key.enc_key,
erp_id);
if (IS_ERR(lkey_id))
return PTR_ERR(lkey_id);
aentry->lkey_id = lkey_id;

28
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_flex_keys.c
View File

@ -107,10 +107,19 @@ static void mlxsw_sp1_afk_encode_block(char *output, int block_index,
memcpy(output_indexed, block, MLXSW_SP1_AFK_KEY_BLOCK_SIZE);
}
static void mlxsw_sp1_afk_clear_block(char *output, int block_index)
{
unsigned int offset = block_index * MLXSW_SP1_AFK_KEY_BLOCK_SIZE;
char *output_indexed = output + offset;
memset(output_indexed, 0, MLXSW_SP1_AFK_KEY_BLOCK_SIZE);
}
const struct mlxsw_afk_ops mlxsw_sp1_afk_ops = {
.blocks = mlxsw_sp1_afk_blocks,
.blocks_count = ARRAY_SIZE(mlxsw_sp1_afk_blocks),
.encode_block = mlxsw_sp1_afk_encode_block,
.clear_block = mlxsw_sp1_afk_clear_block,
};
static struct mlxsw_afk_element_inst mlxsw_sp_afk_element_info_mac_0[] = {
@ -263,10 +272,9 @@ static const struct mlxsw_sp2_afk_block_layout mlxsw_sp2_afk_blocks_layout[] = {
MLXSW_SP2_AFK_BLOCK_LAYOUT(block11, 0x00, 12),
};
static void mlxsw_sp2_afk_encode_block(char *output, int block_index,
char *block)
static void __mlxsw_sp2_afk_block_value_set(char *output, int block_index,
u64 block_value)
{
u64 block_value = mlxsw_sp2_afk_block_value_get(block);
const struct mlxsw_sp2_afk_block_layout *block_layout;
if (WARN_ON(block_index < 0 ||
@ -278,8 +286,22 @@ static void mlxsw_sp2_afk_encode_block(char *output, int block_index,
&block_layout->item, 0, block_value);
}
static void mlxsw_sp2_afk_encode_block(char *output, int block_index,
char *block)
{
u64 block_value = mlxsw_sp2_afk_block_value_get(block);
__mlxsw_sp2_afk_block_value_set(output, block_index, block_value);
}
static void mlxsw_sp2_afk_clear_block(char *output, int block_index)
{
__mlxsw_sp2_afk_block_value_set(output, block_index, 0);
}
const struct mlxsw_afk_ops mlxsw_sp2_afk_ops = {
.blocks = mlxsw_sp2_afk_blocks,
.blocks_count = ARRAY_SIZE(mlxsw_sp2_afk_blocks),
.encode_block = mlxsw_sp2_afk_encode_block,
.clear_block = mlxsw_sp2_afk_clear_block,
};