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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Oct 2022 15:04:36.0809 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d4b8b309-e97c-4a79-37fc-08daa7ac157e X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.117.161]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT080.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6523 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org HWS table resides under the context object, each context can have multiple tables with different steering types RX/TX/FDB. The table is not only a logical object but it is also represented in the HW, packets can be steered to the table and from there to other tables. Signed-off-by: Erez Shitrit Signed-off-by: Alex Vesker --- drivers/net/mlx5/hws/mlx5dr_table.c | 248 ++++++++++++++++++++++++++++ drivers/net/mlx5/hws/mlx5dr_table.h | 44 +++++ 2 files changed, 292 insertions(+) create mode 100644 drivers/net/mlx5/hws/mlx5dr_table.c create mode 100644 drivers/net/mlx5/hws/mlx5dr_table.h diff --git a/drivers/net/mlx5/hws/mlx5dr_table.c b/drivers/net/mlx5/hws/mlx5dr_table.c new file mode 100644 index 0000000000..d3f77e4780 --- /dev/null +++ b/drivers/net/mlx5/hws/mlx5dr_table.c @@ -0,0 +1,248 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2022 NVIDIA Corporation & Affiliates + */ + +#include "mlx5dr_internal.h" + +static void mlx5dr_table_init_next_ft_attr(struct mlx5dr_table *tbl, + struct mlx5dr_cmd_ft_create_attr *ft_attr) +{ + ft_attr->type = tbl->fw_ft_type; + if (tbl->type == MLX5DR_TABLE_TYPE_FDB) + ft_attr->level = tbl->ctx->caps->fdb_ft.max_level - 1; + else + ft_attr->level = tbl->ctx->caps->nic_ft.max_level - 1; + ft_attr->rtc_valid = true; +} + +/* Call this under ctx->ctrl_lock */ +static int +mlx5dr_table_up_default_fdb_miss_tbl(struct mlx5dr_table *tbl) +{ + struct mlx5dr_cmd_ft_create_attr ft_attr = {0}; + struct mlx5dr_cmd_forward_tbl *default_miss; + struct mlx5dr_context *ctx = tbl->ctx; + uint8_t tbl_type = tbl->type; + uint32_t vport; + + if (tbl->type != MLX5DR_TABLE_TYPE_FDB) + return 0; + + if (ctx->common_res[tbl_type].default_miss) { + ctx->common_res[tbl_type].default_miss->refcount++; + return 0; + } + + ft_attr.type = tbl->fw_ft_type; + ft_attr.level = tbl->ctx->caps->fdb_ft.max_level; /* The last level */ + ft_attr.rtc_valid = false; + + assert(ctx->caps->eswitch_manager); + vport = ctx->caps->eswitch_manager_vport_number; + + default_miss = mlx5dr_cmd_miss_ft_create(ctx->ibv_ctx, &ft_attr, vport); + if (!default_miss) { + DR_LOG(ERR, "Failed to default miss table type: 0x%x", tbl_type); + return rte_errno; + } + + ctx->common_res[tbl_type].default_miss = default_miss; + ctx->common_res[tbl_type].default_miss->refcount++; + return 0; +} + +/* Called under pthread_spin_lock(&ctx->ctrl_lock) */ +static void mlx5dr_table_down_default_fdb_miss_tbl(struct mlx5dr_table *tbl) +{ + struct mlx5dr_cmd_forward_tbl *default_miss; + struct mlx5dr_context *ctx = tbl->ctx; + uint8_t tbl_type = tbl->type; + + if (tbl->type != MLX5DR_TABLE_TYPE_FDB) + return; + + default_miss = ctx->common_res[tbl_type].default_miss; + if (--default_miss->refcount) + return; + + mlx5dr_cmd_miss_ft_destroy(default_miss); + + simple_free(default_miss); + ctx->common_res[tbl_type].default_miss = NULL; +} + +static int +mlx5dr_table_connect_to_default_miss_tbl(struct mlx5dr_table *tbl, + struct mlx5dr_devx_obj *ft) +{ + struct mlx5dr_cmd_ft_modify_attr ft_attr = {0}; + int ret; + + assert(tbl->type == MLX5DR_TABLE_TYPE_FDB); + + mlx5dr_cmd_set_attr_connect_miss_tbl(tbl->ctx, + tbl->fw_ft_type, + tbl->type, + &ft_attr); + + /* Connect to next */ + ret = mlx5dr_cmd_flow_table_modify(ft, &ft_attr); + if (ret) { + DR_LOG(ERR, "Failed to connect FT to default FDB FT"); + return errno; + } + + return 0; +} + +struct mlx5dr_devx_obj * +mlx5dr_table_create_default_ft(struct mlx5dr_table *tbl) +{ + struct mlx5dr_cmd_ft_create_attr ft_attr = {0}; + struct mlx5dr_devx_obj *ft_obj; + int ret; + + mlx5dr_table_init_next_ft_attr(tbl, &ft_attr); + + ft_obj = mlx5dr_cmd_flow_table_create(tbl->ctx->ibv_ctx, &ft_attr); + if (ft_obj && tbl->type == MLX5DR_TABLE_TYPE_FDB) { + /* Take/create ref over the default miss */ + ret = mlx5dr_table_up_default_fdb_miss_tbl(tbl); + if (ret) { + DR_LOG(ERR, "Failed to get default fdb miss"); + goto free_ft_obj; + } + ret = mlx5dr_table_connect_to_default_miss_tbl(tbl, ft_obj); + if (ret) { + DR_LOG(ERR, "Failed connecting to default miss tbl"); + goto down_miss_tbl; + } + } + + return ft_obj; + +down_miss_tbl: + mlx5dr_table_down_default_fdb_miss_tbl(tbl); +free_ft_obj: + mlx5dr_cmd_destroy_obj(ft_obj); + return NULL; +} + +void mlx5dr_table_destroy_default_ft(struct mlx5dr_table *tbl, + struct mlx5dr_devx_obj *ft_obj) +{ + mlx5dr_table_down_default_fdb_miss_tbl(tbl); + mlx5dr_cmd_destroy_obj(ft_obj); +} + +static int mlx5dr_table_init(struct mlx5dr_table *tbl) +{ + struct mlx5dr_context *ctx = tbl->ctx; + int ret; + + if (mlx5dr_table_is_root(tbl)) + return 0; + + if (!(tbl->ctx->flags & MLX5DR_CONTEXT_FLAG_HWS_SUPPORT)) { + DR_LOG(ERR, "HWS not supported, cannot create mlx5dr_table"); + rte_errno = EOPNOTSUPP; + return rte_errno; + } + + switch (tbl->type) { + case MLX5DR_TABLE_TYPE_NIC_RX: + tbl->fw_ft_type = FS_FT_NIC_RX; + break; + case MLX5DR_TABLE_TYPE_NIC_TX: + tbl->fw_ft_type = FS_FT_NIC_TX; + break; + case MLX5DR_TABLE_TYPE_FDB: + tbl->fw_ft_type = FS_FT_FDB; + break; + default: + assert(0); + break; + } + + pthread_spin_lock(&ctx->ctrl_lock); + tbl->ft = mlx5dr_table_create_default_ft(tbl); + if (!tbl->ft) { + DR_LOG(ERR, "Failed to create flow table devx object"); + pthread_spin_unlock(&ctx->ctrl_lock); + return rte_errno; + } + + ret = mlx5dr_action_get_default_stc(ctx, tbl->type); + if (ret) + goto tbl_destroy; + pthread_spin_unlock(&ctx->ctrl_lock); + + return 0; + +tbl_destroy: + mlx5dr_table_destroy_default_ft(tbl, tbl->ft); + pthread_spin_unlock(&ctx->ctrl_lock); + return rte_errno; +} + +static void mlx5dr_table_uninit(struct mlx5dr_table *tbl) +{ + if (mlx5dr_table_is_root(tbl)) + return; + pthread_spin_lock(&tbl->ctx->ctrl_lock); + mlx5dr_action_put_default_stc(tbl->ctx, tbl->type); + mlx5dr_table_destroy_default_ft(tbl, tbl->ft); + pthread_spin_unlock(&tbl->ctx->ctrl_lock); +} + +struct mlx5dr_table *mlx5dr_table_create(struct mlx5dr_context *ctx, + struct mlx5dr_table_attr *attr) +{ + struct mlx5dr_table *tbl; + int ret; + + if (attr->type > MLX5DR_TABLE_TYPE_FDB) { + DR_LOG(ERR, "Invalid table type %d", attr->type); + return NULL; + } + + tbl = simple_malloc(sizeof(*tbl)); + if (!tbl) { + rte_errno = ENOMEM; + return NULL; + } + + tbl->ctx = ctx; + tbl->type = attr->type; + tbl->level = attr->level; + LIST_INIT(&tbl->head); + + ret = mlx5dr_table_init(tbl); + if (ret) { + DR_LOG(ERR, "Failed to initialise table"); + goto free_tbl; + } + + pthread_spin_lock(&ctx->ctrl_lock); + LIST_INSERT_HEAD(&ctx->head, tbl, next); + pthread_spin_unlock(&ctx->ctrl_lock); + + return tbl; + +free_tbl: + simple_free(tbl); + return NULL; +} + +int mlx5dr_table_destroy(struct mlx5dr_table *tbl) +{ + struct mlx5dr_context *ctx = tbl->ctx; + + pthread_spin_lock(&ctx->ctrl_lock); + LIST_REMOVE(tbl, next); + pthread_spin_unlock(&ctx->ctrl_lock); + mlx5dr_table_uninit(tbl); + simple_free(tbl); + + return 0; +} diff --git a/drivers/net/mlx5/hws/mlx5dr_table.h b/drivers/net/mlx5/hws/mlx5dr_table.h new file mode 100644 index 0000000000..786dddfaa4 --- /dev/null +++ b/drivers/net/mlx5/hws/mlx5dr_table.h @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2022 NVIDIA Corporation & Affiliates + */ + +#ifndef MLX5DR_TABLE_H_ +#define MLX5DR_TABLE_H_ + +#define MLX5DR_ROOT_LEVEL 0 + +struct mlx5dr_table { + struct mlx5dr_context *ctx; + struct mlx5dr_devx_obj *ft; + enum mlx5dr_table_type type; + uint32_t fw_ft_type; + uint32_t level; + LIST_HEAD(matcher_head, mlx5dr_matcher) head; + LIST_ENTRY(mlx5dr_table) next; +}; + +static inline +uint32_t mlx5dr_table_get_res_fw_ft_type(enum mlx5dr_table_type tbl_type, + bool is_mirror) +{ + if (tbl_type == MLX5DR_TABLE_TYPE_NIC_RX) + return FS_FT_NIC_RX; + else if (tbl_type == MLX5DR_TABLE_TYPE_NIC_TX) + return FS_FT_NIC_TX; + else if (tbl_type == MLX5DR_TABLE_TYPE_FDB) + return is_mirror ? FS_FT_FDB_TX : FS_FT_FDB_RX; + + assert(0); + return 0; +} + +static inline bool mlx5dr_table_is_root(struct mlx5dr_table *tbl) +{ + return (tbl->level == MLX5DR_ROOT_LEVEL); +} + +struct mlx5dr_devx_obj *mlx5dr_table_create_default_ft(struct mlx5dr_table *tbl); + +void mlx5dr_table_destroy_default_ft(struct mlx5dr_table *tbl, + struct mlx5dr_devx_obj *ft_obj); +#endif /* MLX5DR_TABLE_H_ */