ice_sched_re...upport_nodes(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… NAME πŸ’…

ice_sched_recalc_vsi_support_nodes β€” the glow-up math for VSI support nodes, bestie ✨

So this is a page from the Kernel API Manual (you know, the ice_sched_re...upport_nodes(9) one), and it's literally about recalculating how many support nodes a VSI needs. Let's get into it 🫢


🌸 SYNOPSIS 🌸

void ice_sched_recalc_vsi_support_nodes (struct ice_hw *hw , struct
       ice_sched_node *vsi_node , unsigned int new_numqs , u16 *new_num_nodes
       );

πŸŽ€ ARGUMENTS πŸŽ€

  • hw β€” ok so this is a pointer to the HW struct. The hardware. The main character πŸ‘‘
  • vsi_node β€” pointer to the leftmost VSI node that needs to be extended. Leftmost. She's the edge, she's the one getting stretched πŸ’…
  • new_numqs β€” the new number of queues that has to be handled by the VSI. More queues, more problems, more nodes 🌈
  • new_num_nodes β€” pointer to the nodes count table that we're gonna modify β€” specifically the VSI layer entry. This is the table bestie, and we are editing it ✨

πŸ¦‹ DESCRIPTION πŸ¦‹

Okay so here's the vibe: this function recalculates the number of supported nodes that need to be added after you add more Tx queues for a given VSI. Basically you gave the VSI more queues, and now the support-node math needs a little refresh, no cap πŸ”₯

And the number of new VSI support nodes that shall be added? That gets saved to the new_num_nodes table for the VSI layer. That's it. That's the whole job. She's focused, she's efficient, she's iconic πŸ˜­πŸ’–

Lowkey important: the result lands in the new_num_nodes table β€” that's the whole point of the call, so don't lose track of it πŸ™ˆ

πŸ’œ SEE ALSO πŸ’œ

If you wanna go deeper (and honestly same), the kernel file lives at ./drivers/net/ethernet/intel/ice/ice_sched.c β€” go read her fr fr πŸ“–

Also the whole friend group is here, and we're tagging every single one of them because nobody gets left on read:

ice_sched_add_root_node(9), ice_sched_find_node_by_teid(9), ice_sched_find_next_vsi_node(9), ice_aqc_send_sched_elem_cmd(9), ice_aq_query_sched_elems(9), ice_sched_add_node(9), ice_aq_delete_sched_elems(9), ice_sched_remove_elems(9), ice_sched_get_first_node(9), ice_sched_get_tc_node(9), ice_free_sched_node(9), ice_aq_get_dflt_topo(9), ice_aq_add_sched_elems(9), ice_aq_cfg_sched_elems(9), ice_aq_move_sched_elems(9), ice_aq_suspend_sched_elems(9), ice_aq_resume_sched_elems(9), ice_aq_query_sched_res(9), ice_sched_suspend_resume_elems(9), ice_alloc_lan_q_ctx(9), ice_alloc_rdma_q_ctx(9), ice_aq_rl_profile(9), ice_aq_add_rl_profile(9), ice_aq_remove_rl_profile(9), ice_sched_del_rl_profile(9), ice_sched_clear_rl_prof(9), ice_sched_clear_agg(9), ice_sched_clear_tx_topo(9), ice_sched_clear_port(9), ice_sched_cleanup_all(9), ice_sched_add_elems(9), ice_sched_add_nodes_to_hw_layer(9), ice_sched_add_nodes_to_layer(9), ice_sched_get_qgrp_layer(9), ice_sched_get_vsi_layer(9), ice_sched_get_agg_layer(9), ice_rm_dflt_leaf_node(9), ice_sched_rm_dflt_nodes(9), ice_sched_init_port(9), ice_sched_query_res_alloc(9), ice_sched_get_psm_clk_freq(9), ice_sched_find_node_in_subtree(9), ice_sched_get_free_qgrp(9), ice_sched_get_free_qparent(9), ice_sched_get_vsi_node(9), ice_sched_get_agg_node(9), ice_sched_calc_vsi_child_nodes(9), ice_sched_add_vsi_child_nodes(9), ice_sched_calc_vsi_support_nodes(9), ice_sched_add_vsi_support_nodes(9), ice_sched_add_vsi_to_topo(9), ice_sched_update_vsi_child_nodes(9), ice_sched_cfg_vsi(9), ice_sched_rm_agg_vsi_info(9), ice_sched_is_leaf_node_present(9), ice_sched_rm_vsi_subtree(9), ice_sched_rm_vsi_cfg(9), ice_rm_vsi_lan_cfg(9), ice_rm_vsi_rdma_cfg(9), ice_get_agg_info(9), ice_sched_get_free_vsi_parent(9), ice_sched_update_parent(9), ice_sched_move_nodes(9), ice_sched_move_vsi_to_agg(9), ice_move_all_vsi_to_dflt_agg(9), ice_sched_is_agg_inuse(9), ice_sched_rm_agg_cfg(9), ice_rm_agg_cfg_tc(9), ice_save_agg_tc_bitmap(9), ice_sched_add_agg_cfg(9), ice_sched_cfg_agg(9), ice_cfg_agg(9), ice_get_agg_vsi_info(9), ice_get_vsi_agg_info(9), ice_save_agg_vsi_tc_bitmap(9), ice_sched_assoc_vsi_to_agg(9), ice_sched_rm_unused_rl_prof(9), ice_sched_update_elem(9), ice_sched_cfg_node_bw_alloc(9), ice_move_vsi_to_agg(9), ice_set_clear_cir_bw(9), ice_set_clear_eir_bw(9), ice_set_clear_shared_bw(9), ice_sched_save_vsi_bw(9), ice_sched_calc_wakeup(9), ice_sched_bw_to_rl_profile(9), ice_sched_add_rl_profile(9), ice_sched_cfg_node_bw_lmt(9), ice_sched_get_node_rl_prof_id(9), ice_sched_get_rl_prof_layer(9), ice_sched_get_srl_node(9), ice_sched_rm_rl_profile(9), ice_sched_set_node_bw_dflt(9), ice_sched_set_eir_srl_excl(9), ice_sched_set_node_bw(9), ice_sched_set_node_priority(9), ice_sched_set_node_weight(9), ice_sched_set_node_bw_lmt(9), ice_sched_set_node_bw_dflt_lmt(9), ice_sched_validate_srl_node(9), ice_sched_save_q_bw(9), ice_sched_set_q_bw_lmt(9), ice_cfg_q_bw_lmt(9), ice_cfg_q_bw_dflt_lmt(9), ice_sched_get_node_by_id_type(9), ice_sched_set_node_bw_lmt_per_tc(9), ice_cfg_vsi_bw_lmt_per_tc(9), ice_cfg_vsi_bw_dflt_lmt_per_tc(9), ice_cfg_rl_burst_size(9), ice_sched_replay_node_prio(9), ice_sched_replay_node_bw(9), ice_sched_get_ena_tc_bitmap(9), ice_sched_replay_agg(9), ice_sched_replay_agg_vsi_preinit(9), ice_sched_replay_vsi_agg(9), ice_replay_vsi_agg(9), ice_sched_replay_q_bw(9)

That's the whole squad πŸ’€πŸ’–


Ok bye bestie, go recalculate those nodes and slay ✨ This page came to you from ./drivers/net/ethernet/intel/ice, dated October 2026 β€” mwah, love u, drink water πŸ“πŸ’œ

πŸ“¦ where this page comes from