diff options
author | Jiri Pirko <jiri@mellanox.com> | 2018-11-14 11:22:29 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-11-16 01:43:43 +0300 |
commit | c71abd7d9414d059005391120e2166d61e7905ca (patch) | |
tree | 1f838228beeedb8a0e5b06d435f88a370ccc8305 /drivers | |
parent | 0a020d416d0af0b0c782e2a8363896e756e9121e (diff) | |
download | linux-c71abd7d9414d059005391120e2166d61e7905ca.tar.xz |
mlxsw: spectrum: acl_erp: Convert to use objagg for tracking ERPs
Currently the ERPs are tracked internally in a hashtable. Benefit from
the newly introduced objagg library and use it to track ERPs. At this
point, there is no nesting of objects done, as the delta_create callback
always returns -EOPNOTSUPP. On the way, add "mask" into ERP mask get and
set functions and struct names.
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>
Diffstat (limited to 'drivers')
5 files changed, 99 insertions, 90 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/Kconfig b/drivers/net/ethernet/mellanox/mlxsw/Kconfig index 8a291eb36c64..080ddd1942ec 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/Kconfig +++ b/drivers/net/ethernet/mellanox/mlxsw/Kconfig @@ -80,6 +80,7 @@ config MLXSW_SPECTRUM depends on IPV6_GRE || IPV6_GRE=n select GENERIC_ALLOCATOR select PARMAN + select OBJAGG select MLXFW default m ---help--- diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c index 8ca77f3e8f27..62e6cf4bc16e 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum2_acl_tcam.c @@ -34,15 +34,15 @@ mlxsw_sp2_acl_ctcam_region_entry_insert(struct mlxsw_sp_acl_ctcam_region *cregio { struct mlxsw_sp_acl_atcam_region *aregion; struct mlxsw_sp_acl_atcam_entry *aentry; - struct mlxsw_sp_acl_erp *erp; + struct mlxsw_sp_acl_erp_mask *erp_mask; aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion); aentry = mlxsw_sp_acl_tcam_centry_aentry(centry); - erp = mlxsw_sp_acl_erp_get(aregion, mask, true); - if (IS_ERR(erp)) - return PTR_ERR(erp); - aentry->erp = erp; + erp_mask = mlxsw_sp_acl_erp_mask_get(aregion, mask, true); + if (IS_ERR(erp_mask)) + return PTR_ERR(erp_mask); + aentry->erp_mask = erp_mask; return 0; } @@ -57,7 +57,7 @@ mlxsw_sp2_acl_ctcam_region_entry_remove(struct mlxsw_sp_acl_ctcam_region *cregio aregion = mlxsw_sp_acl_tcam_cregion_aregion(cregion); aentry = mlxsw_sp_acl_tcam_centry_aentry(centry); - mlxsw_sp_acl_erp_put(aregion, aentry->erp); + mlxsw_sp_acl_erp_mask_put(aregion, aentry->erp_mask); } static const struct mlxsw_sp_acl_ctcam_region_ops diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c index 2dda028f94db..5a0b88707269 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_atcam.c @@ -64,7 +64,7 @@ static const struct rhashtable_params mlxsw_sp_acl_atcam_entries_ht_params = { static bool mlxsw_sp_acl_atcam_is_centry(const struct mlxsw_sp_acl_atcam_entry *aentry) { - return mlxsw_sp_acl_erp_is_ctcam_erp(aentry->erp); + return mlxsw_sp_acl_erp_mask_is_ctcam(aentry->erp_mask); } static int @@ -379,7 +379,7 @@ mlxsw_sp_acl_atcam_region_entry_insert(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_rule_info *rulei) { struct mlxsw_sp_acl_tcam_region *region = aregion->region; - u8 erp_id = mlxsw_sp_acl_erp_id(aentry->erp); + u8 erp_id = mlxsw_sp_acl_erp_mask_erp_id(aentry->erp_mask); struct mlxsw_sp_acl_atcam_lkey_id *lkey_id; char ptce3_pl[MLXSW_REG_PTCE3_LEN]; u32 kvdl_index, priority; @@ -418,7 +418,7 @@ mlxsw_sp_acl_atcam_region_entry_remove(struct mlxsw_sp *mlxsw_sp, { struct mlxsw_sp_acl_atcam_lkey_id *lkey_id = aentry->lkey_id; struct mlxsw_sp_acl_tcam_region *region = aregion->region; - u8 erp_id = mlxsw_sp_acl_erp_id(aentry->erp); + u8 erp_id = mlxsw_sp_acl_erp_mask_erp_id(aentry->erp_mask); char ptce3_pl[MLXSW_REG_PTCE3_LEN]; mlxsw_reg_ptce3_pack(ptce3_pl, false, MLXSW_REG_PTCE3_OP_WRITE_WRITE, 0, @@ -438,7 +438,7 @@ __mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_tcam_region *region = aregion->region; char mask[MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN] = { 0 }; struct mlxsw_afk *afk = mlxsw_sp_acl_afk(mlxsw_sp->acl); - struct mlxsw_sp_acl_erp *erp; + struct mlxsw_sp_acl_erp_mask *erp_mask; unsigned int blocks_count; int err; @@ -446,11 +446,11 @@ __mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp, mlxsw_afk_encode(afk, region->key_info, &rulei->values, aentry->ht_key.enc_key, mask, 0, blocks_count - 1); - erp = mlxsw_sp_acl_erp_get(aregion, mask, false); - if (IS_ERR(erp)) - return PTR_ERR(erp); - aentry->erp = erp; - aentry->ht_key.erp_id = mlxsw_sp_acl_erp_id(erp); + erp_mask = mlxsw_sp_acl_erp_mask_get(aregion, mask, false); + if (IS_ERR(erp_mask)) + return PTR_ERR(erp_mask); + aentry->erp_mask = erp_mask; + aentry->ht_key.erp_id = mlxsw_sp_acl_erp_mask_erp_id(erp_mask); /* We can't insert identical rules into the A-TCAM, so fail and * let the rule spill into C-TCAM @@ -472,7 +472,7 @@ err_rule_insert: rhashtable_remove_fast(&aregion->entries_ht, &aentry->ht_node, mlxsw_sp_acl_atcam_entries_ht_params); err_rhashtable_insert: - mlxsw_sp_acl_erp_put(aregion, erp); + mlxsw_sp_acl_erp_mask_put(aregion, erp_mask); return err; } @@ -484,7 +484,7 @@ __mlxsw_sp_acl_atcam_entry_del(struct mlxsw_sp *mlxsw_sp, mlxsw_sp_acl_atcam_region_entry_remove(mlxsw_sp, aregion, aentry); rhashtable_remove_fast(&aregion->entries_ht, &aentry->ht_node, mlxsw_sp_acl_atcam_entries_ht_params); - mlxsw_sp_acl_erp_put(aregion, aentry->erp); + mlxsw_sp_acl_erp_mask_put(aregion, aentry->erp_mask); } int mlxsw_sp_acl_atcam_entry_add(struct mlxsw_sp *mlxsw_sp, diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c index 0a4fd3c8662a..52cbdf79bc18 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c @@ -7,7 +7,7 @@ #include <linux/gfp.h> #include <linux/kernel.h> #include <linux/list.h> -#include <linux/rhashtable.h> +#include <linux/objagg.h> #include <linux/rtnetlink.h> #include <linux/slab.h> @@ -36,10 +36,8 @@ struct mlxsw_sp_acl_erp { struct mlxsw_sp_acl_erp_key key; u8 id; u8 index; - refcount_t refcnt; DECLARE_BITMAP(mask_bitmap, MLXSW_SP_ACL_TCAM_MASK_LEN); struct list_head list; - struct rhash_head ht_node; struct mlxsw_sp_acl_erp_table *erp_table; }; @@ -53,7 +51,6 @@ struct mlxsw_sp_acl_erp_table { DECLARE_BITMAP(erp_id_bitmap, MLXSW_SP_ACL_ERP_MAX_PER_REGION); DECLARE_BITMAP(erp_index_bitmap, MLXSW_SP_ACL_ERP_MAX_PER_REGION); struct list_head atcam_erps_list; - struct rhashtable erp_ht; struct mlxsw_sp_acl_erp_core *erp_core; struct mlxsw_sp_acl_atcam_region *aregion; const struct mlxsw_sp_acl_erp_table_ops *ops; @@ -61,12 +58,7 @@ struct mlxsw_sp_acl_erp_table { unsigned int num_atcam_erps; unsigned int num_max_atcam_erps; unsigned int num_ctcam_erps; -}; - -static const struct rhashtable_params mlxsw_sp_acl_erp_ht_params = { - .key_len = sizeof(struct mlxsw_sp_acl_erp_key), - .key_offset = offsetof(struct mlxsw_sp_acl_erp, key), - .head_offset = offsetof(struct mlxsw_sp_acl_erp, ht_node), + struct objagg *objagg; }; struct mlxsw_sp_acl_erp_table_ops { @@ -119,16 +111,6 @@ static const struct mlxsw_sp_acl_erp_table_ops erp_no_mask_ops = { .erp_destroy = mlxsw_sp_acl_erp_no_mask_destroy, }; -bool mlxsw_sp_acl_erp_is_ctcam_erp(const struct mlxsw_sp_acl_erp *erp) -{ - return erp->key.ctcam; -} - -u8 mlxsw_sp_acl_erp_id(const struct mlxsw_sp_acl_erp *erp) -{ - return erp->id; -} - static unsigned int mlxsw_sp_acl_erp_table_entry_size(const struct mlxsw_sp_acl_erp_table *erp_table) { @@ -259,7 +241,6 @@ mlxsw_sp_acl_erp_generic_create(struct mlxsw_sp_acl_erp_table *erp_table, bitmap_from_arr32(erp->mask_bitmap, (u32 *) key->mask, MLXSW_SP_ACL_TCAM_MASK_LEN); list_add(&erp->list, &erp_table->atcam_erps_list); - refcount_set(&erp->refcnt, 1); erp_table->num_atcam_erps++; erp->erp_table = erp_table; @@ -267,15 +248,8 @@ mlxsw_sp_acl_erp_generic_create(struct mlxsw_sp_acl_erp_table *erp_table, if (err) goto err_master_mask_set; - err = rhashtable_insert_fast(&erp_table->erp_ht, &erp->ht_node, - mlxsw_sp_acl_erp_ht_params); - if (err) - goto err_rhashtable_insert; - return erp; -err_rhashtable_insert: - mlxsw_sp_acl_erp_master_mask_clear(erp_table, erp); err_master_mask_set: erp_table->num_atcam_erps--; list_del(&erp->list); @@ -290,8 +264,6 @@ mlxsw_sp_acl_erp_generic_destroy(struct mlxsw_sp_acl_erp *erp) { struct mlxsw_sp_acl_erp_table *erp_table = erp->erp_table; - rhashtable_remove_fast(&erp_table->erp_ht, &erp->ht_node, - mlxsw_sp_acl_erp_ht_params); mlxsw_sp_acl_erp_master_mask_clear(erp_table, erp); erp_table->num_atcam_erps--; list_del(&erp->list); @@ -697,7 +669,6 @@ __mlxsw_sp_acl_erp_ctcam_mask_create(struct mlxsw_sp_acl_erp_table *erp_table, memcpy(&erp->key, key, sizeof(*key)); bitmap_from_arr32(erp->mask_bitmap, (u32 *) key->mask, MLXSW_SP_ACL_TCAM_MASK_LEN); - refcount_set(&erp->refcnt, 1); erp_table->num_ctcam_erps++; erp->erp_table = erp_table; @@ -705,11 +676,6 @@ __mlxsw_sp_acl_erp_ctcam_mask_create(struct mlxsw_sp_acl_erp_table *erp_table, if (err) goto err_master_mask_set; - err = rhashtable_insert_fast(&erp_table->erp_ht, &erp->ht_node, - mlxsw_sp_acl_erp_ht_params); - if (err) - goto err_rhashtable_insert; - err = mlxsw_sp_acl_erp_region_ctcam_enable(erp_table); if (err) goto err_erp_region_ctcam_enable; @@ -720,9 +686,6 @@ __mlxsw_sp_acl_erp_ctcam_mask_create(struct mlxsw_sp_acl_erp_table *erp_table, return erp; err_erp_region_ctcam_enable: - rhashtable_remove_fast(&erp_table->erp_ht, &erp->ht_node, - mlxsw_sp_acl_erp_ht_params); -err_rhashtable_insert: mlxsw_sp_acl_erp_master_mask_clear(erp_table, erp); err_master_mask_set: erp_table->num_ctcam_erps--; @@ -767,8 +730,6 @@ mlxsw_sp_acl_erp_ctcam_mask_destroy(struct mlxsw_sp_acl_erp *erp) struct mlxsw_sp_acl_erp_table *erp_table = erp->erp_table; mlxsw_sp_acl_erp_region_ctcam_disable(erp_table); - rhashtable_remove_fast(&erp_table->erp_ht, &erp->ht_node, - mlxsw_sp_acl_erp_ht_params); mlxsw_sp_acl_erp_master_mask_clear(erp_table, erp); erp_table->num_ctcam_erps--; kfree(erp); @@ -940,13 +901,12 @@ mlxsw_sp_acl_erp_no_mask_destroy(struct mlxsw_sp_acl_erp_table *erp_table, WARN_ON(1); } -struct mlxsw_sp_acl_erp * -mlxsw_sp_acl_erp_get(struct mlxsw_sp_acl_atcam_region *aregion, - const char *mask, bool ctcam) +struct mlxsw_sp_acl_erp_mask * +mlxsw_sp_acl_erp_mask_get(struct mlxsw_sp_acl_atcam_region *aregion, + const char *mask, bool ctcam) { - struct mlxsw_sp_acl_erp_table *erp_table = aregion->erp_table; struct mlxsw_sp_acl_erp_key key; - struct mlxsw_sp_acl_erp *erp; + struct objagg_obj *objagg_obj; /* eRPs are allocated from a shared resource, but currently all * allocations are done under RTNL. @@ -955,29 +915,73 @@ mlxsw_sp_acl_erp_get(struct mlxsw_sp_acl_atcam_region *aregion, memcpy(key.mask, mask, MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN); key.ctcam = ctcam; - erp = rhashtable_lookup_fast(&erp_table->erp_ht, &key, - mlxsw_sp_acl_erp_ht_params); - if (erp) { - refcount_inc(&erp->refcnt); - return erp; - } + objagg_obj = objagg_obj_get(aregion->erp_table->objagg, &key); + if (IS_ERR(objagg_obj)) + return ERR_CAST(objagg_obj); + return (struct mlxsw_sp_acl_erp_mask *) objagg_obj; +} + +void mlxsw_sp_acl_erp_mask_put(struct mlxsw_sp_acl_atcam_region *aregion, + struct mlxsw_sp_acl_erp_mask *erp_mask) +{ + struct objagg_obj *objagg_obj = (struct objagg_obj *) erp_mask; + + ASSERT_RTNL(); + objagg_obj_put(aregion->erp_table->objagg, objagg_obj); +} + +bool +mlxsw_sp_acl_erp_mask_is_ctcam(const struct mlxsw_sp_acl_erp_mask *erp_mask) +{ + struct objagg_obj *objagg_obj = (struct objagg_obj *) erp_mask; + const struct mlxsw_sp_acl_erp_key *key = objagg_obj_raw(objagg_obj); + + return key->ctcam; +} + +u8 mlxsw_sp_acl_erp_mask_erp_id(const struct mlxsw_sp_acl_erp_mask *erp_mask) +{ + struct objagg_obj *objagg_obj = (struct objagg_obj *) erp_mask; + const struct mlxsw_sp_acl_erp *erp = objagg_obj_root_priv(objagg_obj); + + return erp->id; +} - return erp_table->ops->erp_create(erp_table, &key); +static void *mlxsw_sp_acl_erp_delta_create(void *priv, void *parent_obj, + void *obj) +{ + return ERR_PTR(-EOPNOTSUPP); } -void mlxsw_sp_acl_erp_put(struct mlxsw_sp_acl_atcam_region *aregion, - struct mlxsw_sp_acl_erp *erp) +static void mlxsw_sp_acl_erp_delta_destroy(void *priv, void *delta_priv) { +} + +static void *mlxsw_sp_acl_erp_root_create(void *priv, void *obj) +{ + struct mlxsw_sp_acl_atcam_region *aregion = priv; struct mlxsw_sp_acl_erp_table *erp_table = aregion->erp_table; + struct mlxsw_sp_acl_erp_key *key = obj; - ASSERT_RTNL(); + return erp_table->ops->erp_create(erp_table, key); +} - if (!refcount_dec_and_test(&erp->refcnt)) - return; +static void mlxsw_sp_acl_erp_root_destroy(void *priv, void *root_priv) +{ + struct mlxsw_sp_acl_atcam_region *aregion = priv; + struct mlxsw_sp_acl_erp_table *erp_table = aregion->erp_table; - erp_table->ops->erp_destroy(erp_table, erp); + erp_table->ops->erp_destroy(erp_table, root_priv); } +static const struct objagg_ops mlxsw_sp_acl_erp_objagg_ops = { + .obj_size = sizeof(struct mlxsw_sp_acl_erp_key), + .delta_create = mlxsw_sp_acl_erp_delta_create, + .delta_destroy = mlxsw_sp_acl_erp_delta_destroy, + .root_create = mlxsw_sp_acl_erp_root_create, + .root_destroy = mlxsw_sp_acl_erp_root_destroy, +}; + static struct mlxsw_sp_acl_erp_table * mlxsw_sp_acl_erp_table_create(struct mlxsw_sp_acl_atcam_region *aregion) { @@ -988,9 +992,12 @@ mlxsw_sp_acl_erp_table_create(struct mlxsw_sp_acl_atcam_region *aregion) if (!erp_table) return ERR_PTR(-ENOMEM); - err = rhashtable_init(&erp_table->erp_ht, &mlxsw_sp_acl_erp_ht_params); - if (err) - goto err_rhashtable_init; + erp_table->objagg = objagg_create(&mlxsw_sp_acl_erp_objagg_ops, + aregion); + if (IS_ERR(erp_table->objagg)) { + err = PTR_ERR(erp_table->objagg); + goto err_objagg_create; + } erp_table->erp_core = aregion->atcam->erp_core; erp_table->ops = &erp_no_mask_ops; @@ -999,7 +1006,7 @@ mlxsw_sp_acl_erp_table_create(struct mlxsw_sp_acl_atcam_region *aregion) return erp_table; -err_rhashtable_init: +err_objagg_create: kfree(erp_table); return ERR_PTR(err); } @@ -1008,7 +1015,7 @@ static void mlxsw_sp_acl_erp_table_destroy(struct mlxsw_sp_acl_erp_table *erp_table) { WARN_ON(!list_empty(&erp_table->atcam_erps_list)); - rhashtable_destroy(&erp_table->erp_ht); + objagg_destroy(erp_table->objagg); kfree(erp_table); } diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h index 219a4e26c332..854436c5ea93 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h @@ -167,7 +167,7 @@ struct mlxsw_sp_acl_atcam_entry { struct mlxsw_sp_acl_atcam_entry_ht_key ht_key; struct mlxsw_sp_acl_ctcam_entry centry; struct mlxsw_sp_acl_atcam_lkey_id *lkey_id; - struct mlxsw_sp_acl_erp *erp; + struct mlxsw_sp_acl_erp_mask *erp_mask; }; static inline struct mlxsw_sp_acl_atcam_region * @@ -209,15 +209,16 @@ int mlxsw_sp_acl_atcam_init(struct mlxsw_sp *mlxsw_sp, void mlxsw_sp_acl_atcam_fini(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_acl_atcam *atcam); -struct mlxsw_sp_acl_erp; +struct mlxsw_sp_acl_erp_mask; -bool mlxsw_sp_acl_erp_is_ctcam_erp(const struct mlxsw_sp_acl_erp *erp); -u8 mlxsw_sp_acl_erp_id(const struct mlxsw_sp_acl_erp *erp); -struct mlxsw_sp_acl_erp * -mlxsw_sp_acl_erp_get(struct mlxsw_sp_acl_atcam_region *aregion, - const char *mask, bool ctcam); -void mlxsw_sp_acl_erp_put(struct mlxsw_sp_acl_atcam_region *aregion, - struct mlxsw_sp_acl_erp *erp); +bool +mlxsw_sp_acl_erp_mask_is_ctcam(const struct mlxsw_sp_acl_erp_mask *erp_mask); +u8 mlxsw_sp_acl_erp_mask_erp_id(const struct mlxsw_sp_acl_erp_mask *erp_mask); +struct mlxsw_sp_acl_erp_mask * +mlxsw_sp_acl_erp_mask_get(struct mlxsw_sp_acl_atcam_region *aregion, + const char *mask, bool ctcam); +void mlxsw_sp_acl_erp_mask_put(struct mlxsw_sp_acl_atcam_region *aregion, + struct mlxsw_sp_acl_erp_mask *erp_mask); int mlxsw_sp_acl_erp_region_init(struct mlxsw_sp_acl_atcam_region *aregion); void mlxsw_sp_acl_erp_region_fini(struct mlxsw_sp_acl_atcam_region *aregion); int mlxsw_sp_acl_erps_init(struct mlxsw_sp *mlxsw_sp, |