[PATCH net-next v11 07/11] ice: Add an option to pre-allocate memory for ice_sched_node
From: Michal Wilczynski <hidden>
Date: 2022-11-14 17:32:43
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
devlink-rate API requires a priv object to be allocated when node still doesn't have a parent. This is problematic, because ice_sched_node can't be currently created without a parent. Add an option to pre-allocate memory for ice_sched_node struct. Add new arguments to ice_sched_add() and ice_sched_add_elems() that allow for pre-allocation of memory for ice_sched_node struct. Signed-off-by: Michal Wilczynski <redacted> --- drivers/net/ethernet/intel/ice/ice_common.c | 4 ++-- drivers/net/ethernet/intel/ice/ice_dcb.c | 2 +- drivers/net/ethernet/intel/ice/ice_sched.c | 23 +++++++++++++++------ drivers/net/ethernet/intel/ice/ice_sched.h | 6 ++++-- 4 files changed, 24 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index e2e661010176..216370ec60d4 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c@@ -4603,7 +4603,7 @@ ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u16 q_handle, q_ctx->q_teid = le32_to_cpu(node.node_teid); /* add a leaf node into scheduler tree queue layer */ - status = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1, &node); + status = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1, &node, NULL); if (!status) status = ice_sched_replay_q_bw(pi, q_ctx);
@@ -4838,7 +4838,7 @@ ice_ena_vsi_rdma_qset(struct ice_port_info *pi, u16 vsi_handle, u8 tc, for (i = 0; i < num_qsets; i++) { node.node_teid = buf->rdma_qsets[i].qset_teid; ret = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1, - &node); + &node, NULL); if (ret) break; qset_teid[i] = le32_to_cpu(node.node_teid);
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb.c b/drivers/net/ethernet/intel/ice/ice_dcb.c
index 0b146a0d4205..6be02f9b0b8c 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb.c@@ -1580,7 +1580,7 @@ ice_update_port_tc_tree_cfg(struct ice_port_info *pi, /* new TC */ status = ice_sched_query_elem(pi->hw, teid2, &elem); if (!status) - status = ice_sched_add_node(pi, 1, &elem); + status = ice_sched_add_node(pi, 1, &elem, NULL); if (status) break; /* update the TC number */
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index 980543074ddb..6d08b397df2a 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c@@ -143,12 +143,14 @@ ice_aq_query_sched_elems(struct ice_hw *hw, u16 elems_req, * @pi: port information structure * @layer: Scheduler layer of the node * @info: Scheduler element information from firmware + * @prealloc_node: preallocated ice_sched_node struct for SW DB * * This function inserts a scheduler node to the SW DB. */ int ice_sched_add_node(struct ice_port_info *pi, u8 layer, - struct ice_aqc_txsched_elem_data *info) + struct ice_aqc_txsched_elem_data *info, + struct ice_sched_node *prealloc_node) { struct ice_aqc_txsched_elem_data elem; struct ice_sched_node *parent;
@@ -177,7 +179,10 @@ ice_sched_add_node(struct ice_port_info *pi, u8 layer, if (status) return status; - node = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*node), GFP_KERNEL); + if (prealloc_node) + node = prealloc_node; + else + node = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*node), GFP_KERNEL); if (!node) return -ENOMEM; if (hw->max_children[layer]) {
@@ -876,13 +881,15 @@ void ice_sched_cleanup_all(struct ice_hw *hw) * @num_nodes: number of nodes * @num_nodes_added: pointer to num nodes added * @first_node_teid: if new nodes are added then return the TEID of first node + * @prealloc_nodes: preallocated nodes struct for software DB * * This function add nodes to HW as well as to SW DB for a given layer */ int ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node, struct ice_sched_node *parent, u8 layer, u16 num_nodes, - u16 *num_nodes_added, u32 *first_node_teid) + u16 *num_nodes_added, u32 *first_node_teid, + struct ice_sched_node **prealloc_nodes) { struct ice_sched_node *prev, *new_node; struct ice_aqc_add_elem *buf;
@@ -928,7 +935,11 @@ ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node, *num_nodes_added = num_nodes; /* add nodes to the SW DB */ for (i = 0; i < num_nodes; i++) { - status = ice_sched_add_node(pi, layer, &buf->generic[i]); + if (prealloc_nodes) + status = ice_sched_add_node(pi, layer, &buf->generic[i], prealloc_nodes[i]); + else + status = ice_sched_add_node(pi, layer, &buf->generic[i], NULL); + if (status) { ice_debug(hw, ICE_DBG_SCHED, "add nodes in SW DB failed status =%d\n", status);
@@ -1023,7 +1034,7 @@ ice_sched_add_nodes_to_hw_layer(struct ice_port_info *pi, } return ice_sched_add_elems(pi, tc_node, parent, layer, num_nodes, - num_nodes_added, first_node_teid); + num_nodes_added, first_node_teid, NULL); } /**
@@ -1288,7 +1299,7 @@ int ice_sched_init_port(struct ice_port_info *pi) ICE_AQC_ELEM_TYPE_ENTRY_POINT) hw->sw_entry_point_layer = j; - status = ice_sched_add_node(pi, j, &buf[i].generic[j]); + status = ice_sched_add_node(pi, j, &buf[i].generic[j], NULL); if (status) goto err_init_port; }
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.h b/drivers/net/ethernet/intel/ice/ice_sched.h
index 920db43ed4fa..9c100747445a 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.h
+++ b/drivers/net/ethernet/intel/ice/ice_sched.h@@ -83,7 +83,8 @@ ice_sched_set_node_bw(struct ice_port_info *pi, struct ice_sched_node *node, int ice_sched_add_elems(struct ice_port_info *pi, struct ice_sched_node *tc_node, struct ice_sched_node *parent, u8 layer, u16 num_nodes, - u16 *num_nodes_added, u32 *first_node_teid); + u16 *num_nodes_added, u32 *first_node_teid, + struct ice_sched_node **prealloc_node); int ice_sched_move_nodes(struct ice_port_info *pi, struct ice_sched_node *parent,
@@ -105,7 +106,8 @@ struct ice_sched_node * ice_sched_find_node_by_teid(struct ice_sched_node *start_node, u32 teid); int ice_sched_add_node(struct ice_port_info *pi, u8 layer, - struct ice_aqc_txsched_elem_data *info); + struct ice_aqc_txsched_elem_data *info, + struct ice_sched_node *prealloc_node); void ice_sched_update_parent(struct ice_sched_node *new_parent, struct ice_sched_node *node);
--
2.37.2