On 2/15/2024 6:13 AM, Gregory Etelson wrote: > Template table creation API sets table flows capacity. > If application needs more flows then the table was designed for, > the following procedures must be completed: > 1. Create a new template table with larger flows capacity. > 2. Re-create existing flows in the new table and delete flows from > the original table. > 3. Destroy original table. > > Application cannot always execute that procedure: > * Port may not have sufficient resources to allocate a new table > while maintaining original table. > * Application may not have existing flows "recipes" to re-create > flows in a new table. > > The patch defines a new API that allows application to resize > existing template table: > > * Resizable template table must be created with the > RTE_FLOW_TABLE_SPECIALIZE_RESIZABLE_TABLE bit set. > > * Application resizes existing table with the > `rte_flow_template_table_resize()` function call. > The table resize procedure updates the table maximal flow number > only. Other table attributes are not affected by the table resize. > ** The table resize procedure must not interrupt > existing table flows operations in hardware. > ** The table resize procedure must not alter flow handles held by > application. > > * After `rte_flow_template_table_resize()` returned, application must > update table flow rules by calling > `rte_flow_async_update_resized()`. > The call reconfigures internal flow resources for the new table > configuration. > The flow update must not interrupt hardware flow operations. > > * After table flows were updated, application must call > `rte_flow_template_table_resize_complete()`. > The function releases PMD resources related to the original > table. > Application can start new table resize after > `rte_flow_template_table_resize_complete()` returned. > > Testpmd commands: > > * Create resizable template table > flow template_table <port-id> create table_id <tbl-id> resizable \ > [transfer|ingress|egres] group <group-id> \ > rules_number <initial table capacity> \ > pattern_template <pt1> [ pattern_template <pt2> [ ... ]] \ > actions_template <at1> [ actions_template <at2> [ ... ]] > > * Resize table: > flow template_table <tbl-id> resize table_resize_id <tbl-id> \ > table_resize_rules_num <new table capacity> > > * Queue a flow update: > flow queue <port-id> update_resized <tbl-id> rule <flow-id> > > * Complete table resize: > flow template_table <port-id> resize_complete table <tbl-id> > > Signed-off-by: Gregory Etelson <getel...@nvidia.com> > Acked-by: Ori Kam <or...@nvidia.com> > Acked-by: Ferruh Yigit <ferruh.yi...@amd.com> > Acked-by: Thomas Monjalon <tho...@monjalon.net> >
Applied to dpdk-next-net/main, thanks.
