net/mlx5/hws: add table object
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 <erezsh@nvidia.com> Signed-off-by: Alex Vesker <valex@nvidia.com>
This commit is contained in:
Alex Vesker
Raslan Darawsheh
parent
b0290e56dd
commit
394cc7ba40
248
drivers/net/mlx5/hws/mlx5dr_table.c
Normal file
248
drivers/net/mlx5/hws/mlx5dr_table.c
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@ -0,0 +1,248 @@
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2022 NVIDIA Corporation & Affiliates
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*/
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#include "mlx5dr_internal.h"
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static void mlx5dr_table_init_next_ft_attr(struct mlx5dr_table *tbl,
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struct mlx5dr_cmd_ft_create_attr *ft_attr)
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{
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ft_attr->type = tbl->fw_ft_type;
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if (tbl->type == MLX5DR_TABLE_TYPE_FDB)
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ft_attr->level = tbl->ctx->caps->fdb_ft.max_level - 1;
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else
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ft_attr->level = tbl->ctx->caps->nic_ft.max_level - 1;
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ft_attr->rtc_valid = true;
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}
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/* Call this under ctx->ctrl_lock */
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static int
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mlx5dr_table_up_default_fdb_miss_tbl(struct mlx5dr_table *tbl)
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{
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struct mlx5dr_cmd_ft_create_attr ft_attr = {0};
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struct mlx5dr_cmd_forward_tbl *default_miss;
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struct mlx5dr_context *ctx = tbl->ctx;
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uint8_t tbl_type = tbl->type;
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uint32_t vport;
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if (tbl->type != MLX5DR_TABLE_TYPE_FDB)
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return 0;
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if (ctx->common_res[tbl_type].default_miss) {
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ctx->common_res[tbl_type].default_miss->refcount++;
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return 0;
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}
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ft_attr.type = tbl->fw_ft_type;
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ft_attr.level = tbl->ctx->caps->fdb_ft.max_level; /* The last level */
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ft_attr.rtc_valid = false;
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assert(ctx->caps->eswitch_manager);
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vport = ctx->caps->eswitch_manager_vport_number;
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default_miss = mlx5dr_cmd_miss_ft_create(ctx->ibv_ctx, &ft_attr, vport);
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if (!default_miss) {
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DR_LOG(ERR, "Failed to default miss table type: 0x%x", tbl_type);
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return rte_errno;
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}
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ctx->common_res[tbl_type].default_miss = default_miss;
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ctx->common_res[tbl_type].default_miss->refcount++;
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return 0;
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}
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/* Called under pthread_spin_lock(&ctx->ctrl_lock) */
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static void mlx5dr_table_down_default_fdb_miss_tbl(struct mlx5dr_table *tbl)
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{
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struct mlx5dr_cmd_forward_tbl *default_miss;
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struct mlx5dr_context *ctx = tbl->ctx;
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uint8_t tbl_type = tbl->type;
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if (tbl->type != MLX5DR_TABLE_TYPE_FDB)
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return;
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default_miss = ctx->common_res[tbl_type].default_miss;
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if (--default_miss->refcount)
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return;
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mlx5dr_cmd_miss_ft_destroy(default_miss);
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simple_free(default_miss);
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ctx->common_res[tbl_type].default_miss = NULL;
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}
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static int
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mlx5dr_table_connect_to_default_miss_tbl(struct mlx5dr_table *tbl,
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struct mlx5dr_devx_obj *ft)
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{
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struct mlx5dr_cmd_ft_modify_attr ft_attr = {0};
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int ret;
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assert(tbl->type == MLX5DR_TABLE_TYPE_FDB);
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mlx5dr_cmd_set_attr_connect_miss_tbl(tbl->ctx,
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tbl->fw_ft_type,
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tbl->type,
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&ft_attr);
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/* Connect to next */
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ret = mlx5dr_cmd_flow_table_modify(ft, &ft_attr);
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if (ret) {
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DR_LOG(ERR, "Failed to connect FT to default FDB FT");
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return errno;
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}
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return 0;
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}
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struct mlx5dr_devx_obj *
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mlx5dr_table_create_default_ft(struct mlx5dr_table *tbl)
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{
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struct mlx5dr_cmd_ft_create_attr ft_attr = {0};
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struct mlx5dr_devx_obj *ft_obj;
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int ret;
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mlx5dr_table_init_next_ft_attr(tbl, &ft_attr);
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ft_obj = mlx5dr_cmd_flow_table_create(tbl->ctx->ibv_ctx, &ft_attr);
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if (ft_obj && tbl->type == MLX5DR_TABLE_TYPE_FDB) {
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/* Take/create ref over the default miss */
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ret = mlx5dr_table_up_default_fdb_miss_tbl(tbl);
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if (ret) {
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DR_LOG(ERR, "Failed to get default fdb miss");
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goto free_ft_obj;
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}
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ret = mlx5dr_table_connect_to_default_miss_tbl(tbl, ft_obj);
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if (ret) {
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DR_LOG(ERR, "Failed connecting to default miss tbl");
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goto down_miss_tbl;
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}
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}
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return ft_obj;
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down_miss_tbl:
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mlx5dr_table_down_default_fdb_miss_tbl(tbl);
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free_ft_obj:
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mlx5dr_cmd_destroy_obj(ft_obj);
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return NULL;
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}
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void mlx5dr_table_destroy_default_ft(struct mlx5dr_table *tbl,
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struct mlx5dr_devx_obj *ft_obj)
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{
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mlx5dr_table_down_default_fdb_miss_tbl(tbl);
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mlx5dr_cmd_destroy_obj(ft_obj);
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}
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static int mlx5dr_table_init(struct mlx5dr_table *tbl)
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{
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struct mlx5dr_context *ctx = tbl->ctx;
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int ret;
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if (mlx5dr_table_is_root(tbl))
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return 0;
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if (!(tbl->ctx->flags & MLX5DR_CONTEXT_FLAG_HWS_SUPPORT)) {
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DR_LOG(ERR, "HWS not supported, cannot create mlx5dr_table");
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rte_errno = EOPNOTSUPP;
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return rte_errno;
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}
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switch (tbl->type) {
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case MLX5DR_TABLE_TYPE_NIC_RX:
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tbl->fw_ft_type = FS_FT_NIC_RX;
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break;
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case MLX5DR_TABLE_TYPE_NIC_TX:
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tbl->fw_ft_type = FS_FT_NIC_TX;
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break;
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case MLX5DR_TABLE_TYPE_FDB:
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tbl->fw_ft_type = FS_FT_FDB;
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break;
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default:
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assert(0);
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break;
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}
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pthread_spin_lock(&ctx->ctrl_lock);
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tbl->ft = mlx5dr_table_create_default_ft(tbl);
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if (!tbl->ft) {
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DR_LOG(ERR, "Failed to create flow table devx object");
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pthread_spin_unlock(&ctx->ctrl_lock);
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return rte_errno;
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}
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ret = mlx5dr_action_get_default_stc(ctx, tbl->type);
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if (ret)
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goto tbl_destroy;
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pthread_spin_unlock(&ctx->ctrl_lock);
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return 0;
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tbl_destroy:
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mlx5dr_table_destroy_default_ft(tbl, tbl->ft);
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pthread_spin_unlock(&ctx->ctrl_lock);
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return rte_errno;
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}
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static void mlx5dr_table_uninit(struct mlx5dr_table *tbl)
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{
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if (mlx5dr_table_is_root(tbl))
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return;
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pthread_spin_lock(&tbl->ctx->ctrl_lock);
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mlx5dr_action_put_default_stc(tbl->ctx, tbl->type);
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mlx5dr_table_destroy_default_ft(tbl, tbl->ft);
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pthread_spin_unlock(&tbl->ctx->ctrl_lock);
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}
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struct mlx5dr_table *mlx5dr_table_create(struct mlx5dr_context *ctx,
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struct mlx5dr_table_attr *attr)
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{
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struct mlx5dr_table *tbl;
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int ret;
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if (attr->type > MLX5DR_TABLE_TYPE_FDB) {
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DR_LOG(ERR, "Invalid table type %d", attr->type);
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return NULL;
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}
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tbl = simple_malloc(sizeof(*tbl));
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if (!tbl) {
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rte_errno = ENOMEM;
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return NULL;
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}
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tbl->ctx = ctx;
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tbl->type = attr->type;
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tbl->level = attr->level;
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LIST_INIT(&tbl->head);
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ret = mlx5dr_table_init(tbl);
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if (ret) {
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DR_LOG(ERR, "Failed to initialise table");
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goto free_tbl;
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}
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pthread_spin_lock(&ctx->ctrl_lock);
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LIST_INSERT_HEAD(&ctx->head, tbl, next);
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pthread_spin_unlock(&ctx->ctrl_lock);
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return tbl;
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free_tbl:
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simple_free(tbl);
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return NULL;
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}
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int mlx5dr_table_destroy(struct mlx5dr_table *tbl)
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{
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struct mlx5dr_context *ctx = tbl->ctx;
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pthread_spin_lock(&ctx->ctrl_lock);
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LIST_REMOVE(tbl, next);
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pthread_spin_unlock(&ctx->ctrl_lock);
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mlx5dr_table_uninit(tbl);
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simple_free(tbl);
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return 0;
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}
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44
drivers/net/mlx5/hws/mlx5dr_table.h
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44
drivers/net/mlx5/hws/mlx5dr_table.h
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@ -0,0 +1,44 @@
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) 2022 NVIDIA Corporation & Affiliates
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*/
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#ifndef MLX5DR_TABLE_H_
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#define MLX5DR_TABLE_H_
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#define MLX5DR_ROOT_LEVEL 0
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struct mlx5dr_table {
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struct mlx5dr_context *ctx;
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struct mlx5dr_devx_obj *ft;
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enum mlx5dr_table_type type;
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uint32_t fw_ft_type;
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uint32_t level;
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LIST_HEAD(matcher_head, mlx5dr_matcher) head;
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LIST_ENTRY(mlx5dr_table) next;
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};
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static inline
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uint32_t mlx5dr_table_get_res_fw_ft_type(enum mlx5dr_table_type tbl_type,
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bool is_mirror)
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{
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if (tbl_type == MLX5DR_TABLE_TYPE_NIC_RX)
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return FS_FT_NIC_RX;
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else if (tbl_type == MLX5DR_TABLE_TYPE_NIC_TX)
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return FS_FT_NIC_TX;
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else if (tbl_type == MLX5DR_TABLE_TYPE_FDB)
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return is_mirror ? FS_FT_FDB_TX : FS_FT_FDB_RX;
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assert(0);
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return 0;
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}
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static inline bool mlx5dr_table_is_root(struct mlx5dr_table *tbl)
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{
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return (tbl->level == MLX5DR_ROOT_LEVEL);
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}
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struct mlx5dr_devx_obj *mlx5dr_table_create_default_ft(struct mlx5dr_table *tbl);
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void mlx5dr_table_destroy_default_ft(struct mlx5dr_table *tbl,
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struct mlx5dr_devx_obj *ft_obj);
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#endif /* MLX5DR_TABLE_H_ */
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