diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c | 187 |
1 files changed, 179 insertions, 8 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c index 55f9d2d70f9e..d27fa57ad3c3 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c @@ -67,7 +67,7 @@ struct mlxsw_sp_kvdl_part_info { struct mlxsw_sp_kvdl_part { struct list_head list; - const struct mlxsw_sp_kvdl_part_info *info; + struct mlxsw_sp_kvdl_part_info *info; unsigned long usage[0]; /* Entries */ }; @@ -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, @@ -222,27 +228,74 @@ mlxsw_sp_kvdl_part_find(struct mlxsw_sp *mlxsw_sp, unsigned int part_index) return NULL; } +static void +mlxsw_sp_kvdl_part_update(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_kvdl_part *part, unsigned int size) +{ + struct mlxsw_sp_kvdl_part_info *info = part->info; + + if (list_is_last(&part->list, &mlxsw_sp->kvdl->parts_list)) { + info->end_index = size - 1; + } else { + struct mlxsw_sp_kvdl_part *last_part; + + last_part = list_next_entry(part, list); + info->start_index = last_part->info->end_index + 1; + info->end_index = info->start_index + size - 1; + } +} + static int mlxsw_sp_kvdl_part_init(struct mlxsw_sp *mlxsw_sp, unsigned int part_index) { + struct devlink *devlink = priv_to_devlink(mlxsw_sp->core); const struct mlxsw_sp_kvdl_part_info *info; + enum mlxsw_sp_resource_id resource_id; struct mlxsw_sp_kvdl_part *part; + bool need_update = true; unsigned int nr_entries; size_t usage_size; + u64 resource_size; + int err; info = &kvdl_parts_info[part_index]; - nr_entries = (info->end_index - info->start_index + 1) / - info->alloc_size; + switch (part_index) { + case MLXSW_SP_KVDL_PART_SINGLE: + resource_id = MLXSW_SP_RESOURCE_KVD_LINEAR_SINGLE; + break; + case MLXSW_SP_KVDL_PART_CHUNKS: + resource_id = MLXSW_SP_RESOURCE_KVD_LINEAR_CHUNKS; + break; + case MLXSW_SP_KVDL_PART_LARGE_CHUNKS: + resource_id = MLXSW_SP_RESOURCE_KVD_LINEAR_LARGE_CHUNKS; + break; + } + + err = devlink_resource_size_get(devlink, resource_id, &resource_size); + if (err) { + need_update = false; + resource_size = info->end_index - info->start_index + 1; + } + + nr_entries = resource_size / info->alloc_size; usage_size = BITS_TO_LONGS(nr_entries) * sizeof(unsigned long); part = kzalloc(sizeof(*part) + usage_size, GFP_KERNEL); if (!part) return -ENOMEM; - part->info = info; - list_add(&part->list, &mlxsw_sp->kvdl->parts_list); + part->info = kmemdup(info, sizeof(*part->info), GFP_KERNEL); + if (!part->info) + goto err_part_info_alloc; + list_add(&part->list, &mlxsw_sp->kvdl->parts_list); + if (need_update) + mlxsw_sp_kvdl_part_update(mlxsw_sp, part, resource_size); return 0; + +err_part_info_alloc: + kfree(part); + return -ENOMEM; } static void mlxsw_sp_kvdl_part_fini(struct mlxsw_sp *mlxsw_sp, @@ -255,6 +308,7 @@ static void mlxsw_sp_kvdl_part_fini(struct mlxsw_sp *mlxsw_sp, return; list_del(&part->list); + kfree(part->info); kfree(part); } @@ -312,6 +366,123 @@ u64 mlxsw_sp_kvdl_occ_get(const struct mlxsw_sp *mlxsw_sp) return occ; } +u64 mlxsw_sp_kvdl_single_occ_get(struct devlink *devlink) +{ + struct mlxsw_core *mlxsw_core = devlink_priv(devlink); + struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); + struct mlxsw_sp_kvdl_part *part; + + part = mlxsw_sp_kvdl_part_find(mlxsw_sp, MLXSW_SP_KVDL_PART_SINGLE); + if (!part) + return -EINVAL; + + return mlxsw_sp_kvdl_part_occ(part); +} + +u64 mlxsw_sp_kvdl_chunks_occ_get(struct devlink *devlink) +{ + struct mlxsw_core *mlxsw_core = devlink_priv(devlink); + struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); + struct mlxsw_sp_kvdl_part *part; + + part = mlxsw_sp_kvdl_part_find(mlxsw_sp, MLXSW_SP_KVDL_PART_CHUNKS); + if (!part) + return -EINVAL; + + return mlxsw_sp_kvdl_part_occ(part); +} + +u64 mlxsw_sp_kvdl_large_chunks_occ_get(struct devlink *devlink) +{ + struct mlxsw_core *mlxsw_core = devlink_priv(devlink); + struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); + struct mlxsw_sp_kvdl_part *part; + + part = mlxsw_sp_kvdl_part_find(mlxsw_sp, + MLXSW_SP_KVDL_PART_LARGE_CHUNKS); + if (!part) + return -EINVAL; + + return mlxsw_sp_kvdl_part_occ(part); +} + +static struct devlink_resource_ops mlxsw_sp_kvdl_single_ops = { + .occ_get = mlxsw_sp_kvdl_single_occ_get, +}; + +static struct devlink_resource_ops mlxsw_sp_kvdl_chunks_ops = { + .occ_get = mlxsw_sp_kvdl_chunks_occ_get, +}; + +static struct devlink_resource_ops mlxsw_sp_kvdl_chunks_large_ops = { + .occ_get = mlxsw_sp_kvdl_large_chunks_occ_get, +}; + +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, + &mlxsw_sp_kvdl_single_ops); + 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, + &mlxsw_sp_kvdl_chunks_ops); + 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, + &mlxsw_sp_kvdl_chunks_large_ops); + return err; +} + int mlxsw_sp_kvdl_init(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_kvdl *kvdl; |