diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en/htb.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en/htb.c | 722 |
1 files changed, 722 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/htb.c b/drivers/net/ethernet/mellanox/mlx5/core/en/htb.c new file mode 100644 index 000000000000..6dac76fa58a3 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/htb.c @@ -0,0 +1,722 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */ + +#include <net/pkt_cls.h> +#include "htb.h" +#include "en.h" +#include "../qos.h" + +struct mlx5e_qos_node { + struct hlist_node hnode; + struct mlx5e_qos_node *parent; + u64 rate; + u32 bw_share; + u32 max_average_bw; + u32 hw_id; + u32 classid; /* 16-bit, except root. */ + u16 qid; +}; + +struct mlx5e_htb { + DECLARE_HASHTABLE(qos_tc2node, order_base_2(MLX5E_QOS_MAX_LEAF_NODES)); + DECLARE_BITMAP(qos_used_qids, MLX5E_QOS_MAX_LEAF_NODES); + struct mlx5_core_dev *mdev; + struct net_device *netdev; + struct mlx5e_priv *priv; + struct mlx5e_selq *selq; +}; + +#define MLX5E_QOS_QID_INNER 0xffff +#define MLX5E_HTB_CLASSID_ROOT 0xffffffff + +/* Software representation of the QoS tree */ + +int mlx5e_htb_enumerate_leaves(struct mlx5e_htb *htb, mlx5e_fp_htb_enumerate callback, void *data) +{ + struct mlx5e_qos_node *node = NULL; + int bkt, err; + + hash_for_each(htb->qos_tc2node, bkt, node, hnode) { + if (node->qid == MLX5E_QOS_QID_INNER) + continue; + err = callback(data, node->qid, node->hw_id); + if (err) + return err; + } + return 0; +} + +int mlx5e_htb_cur_leaf_nodes(struct mlx5e_htb *htb) +{ + int last; + + last = find_last_bit(htb->qos_used_qids, mlx5e_qos_max_leaf_nodes(htb->mdev)); + return last == mlx5e_qos_max_leaf_nodes(htb->mdev) ? 0 : last + 1; +} + +static int mlx5e_htb_find_unused_qos_qid(struct mlx5e_htb *htb) +{ + int size = mlx5e_qos_max_leaf_nodes(htb->mdev); + struct mlx5e_priv *priv = htb->priv; + int res; + + WARN_ONCE(!mutex_is_locked(&priv->state_lock), "%s: state_lock is not held\n", __func__); + res = find_first_zero_bit(htb->qos_used_qids, size); + + return res == size ? -ENOSPC : res; +} + +static struct mlx5e_qos_node * +mlx5e_htb_node_create_leaf(struct mlx5e_htb *htb, u16 classid, u16 qid, + struct mlx5e_qos_node *parent) +{ + struct mlx5e_qos_node *node; + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return ERR_PTR(-ENOMEM); + + node->parent = parent; + + node->qid = qid; + __set_bit(qid, htb->qos_used_qids); + + node->classid = classid; + hash_add_rcu(htb->qos_tc2node, &node->hnode, classid); + + mlx5e_update_tx_netdev_queues(htb->priv); + + return node; +} + +static struct mlx5e_qos_node *mlx5e_htb_node_create_root(struct mlx5e_htb *htb) +{ + struct mlx5e_qos_node *node; + + node = kzalloc(sizeof(*node), GFP_KERNEL); + if (!node) + return ERR_PTR(-ENOMEM); + + node->qid = MLX5E_QOS_QID_INNER; + node->classid = MLX5E_HTB_CLASSID_ROOT; + hash_add_rcu(htb->qos_tc2node, &node->hnode, node->classid); + + return node; +} + +static struct mlx5e_qos_node *mlx5e_htb_node_find(struct mlx5e_htb *htb, u32 classid) +{ + struct mlx5e_qos_node *node = NULL; + + hash_for_each_possible(htb->qos_tc2node, node, hnode, classid) { + if (node->classid == classid) + break; + } + + return node; +} + +static struct mlx5e_qos_node *mlx5e_htb_node_find_rcu(struct mlx5e_htb *htb, u32 classid) +{ + struct mlx5e_qos_node *node = NULL; + + hash_for_each_possible_rcu(htb->qos_tc2node, node, hnode, classid) { + if (node->classid == classid) + break; + } + + return node; +} + +static void mlx5e_htb_node_delete(struct mlx5e_htb *htb, struct mlx5e_qos_node *node) +{ + hash_del_rcu(&node->hnode); + if (node->qid != MLX5E_QOS_QID_INNER) { + __clear_bit(node->qid, htb->qos_used_qids); + mlx5e_update_tx_netdev_queues(htb->priv); + } + /* Make sure this qid is no longer selected by mlx5e_select_queue, so + * that mlx5e_reactivate_qos_sq can safely restart the netdev TX queue. + */ + synchronize_net(); + kfree(node); +} + +/* TX datapath API */ + +int mlx5e_htb_get_txq_by_classid(struct mlx5e_htb *htb, u16 classid) +{ + struct mlx5e_qos_node *node; + u16 qid; + int res; + + rcu_read_lock(); + + node = mlx5e_htb_node_find_rcu(htb, classid); + if (!node) { + res = -ENOENT; + goto out; + } + qid = READ_ONCE(node->qid); + if (qid == MLX5E_QOS_QID_INNER) { + res = -EINVAL; + goto out; + } + res = mlx5e_qid_from_qos(&htb->priv->channels, qid); + +out: + rcu_read_unlock(); + return res; +} + +/* HTB TC handlers */ + +static int +mlx5e_htb_root_add(struct mlx5e_htb *htb, u16 htb_maj_id, u16 htb_defcls, + struct netlink_ext_ack *extack) +{ + struct mlx5e_priv *priv = htb->priv; + struct mlx5e_qos_node *root; + bool opened; + int err; + + qos_dbg(htb->mdev, "TC_HTB_CREATE handle %04x:, default :%04x\n", htb_maj_id, htb_defcls); + + mlx5e_selq_prepare_htb(htb->selq, htb_maj_id, htb_defcls); + + opened = test_bit(MLX5E_STATE_OPENED, &priv->state); + if (opened) { + err = mlx5e_qos_alloc_queues(priv, &priv->channels); + if (err) + goto err_cancel_selq; + } + + root = mlx5e_htb_node_create_root(htb); + if (IS_ERR(root)) { + err = PTR_ERR(root); + goto err_free_queues; + } + + err = mlx5_qos_create_root_node(htb->mdev, &root->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error. Try upgrading firmware."); + goto err_sw_node_delete; + } + + mlx5e_selq_apply(htb->selq); + + return 0; + +err_sw_node_delete: + mlx5e_htb_node_delete(htb, root); + +err_free_queues: + if (opened) + mlx5e_qos_close_all_queues(&priv->channels); +err_cancel_selq: + mlx5e_selq_cancel(htb->selq); + return err; +} + +static int mlx5e_htb_root_del(struct mlx5e_htb *htb) +{ + struct mlx5e_priv *priv = htb->priv; + struct mlx5e_qos_node *root; + int err; + + qos_dbg(htb->mdev, "TC_HTB_DESTROY\n"); + + /* Wait until real_num_tx_queues is updated for mlx5e_select_queue, + * so that we can safely switch to its non-HTB non-PTP fastpath. + */ + synchronize_net(); + + mlx5e_selq_prepare_htb(htb->selq, 0, 0); + mlx5e_selq_apply(htb->selq); + + root = mlx5e_htb_node_find(htb, MLX5E_HTB_CLASSID_ROOT); + if (!root) { + qos_err(htb->mdev, "Failed to find the root node in the QoS tree\n"); + return -ENOENT; + } + err = mlx5_qos_destroy_node(htb->mdev, root->hw_id); + if (err) + qos_err(htb->mdev, "Failed to destroy root node %u, err = %d\n", + root->hw_id, err); + mlx5e_htb_node_delete(htb, root); + + mlx5e_qos_deactivate_all_queues(&priv->channels); + mlx5e_qos_close_all_queues(&priv->channels); + + return err; +} + +static int mlx5e_htb_convert_rate(struct mlx5e_htb *htb, u64 rate, + struct mlx5e_qos_node *parent, u32 *bw_share) +{ + u64 share = 0; + + while (parent->classid != MLX5E_HTB_CLASSID_ROOT && !parent->max_average_bw) + parent = parent->parent; + + if (parent->max_average_bw) + share = div64_u64(div_u64(rate * 100, BYTES_IN_MBIT), + parent->max_average_bw); + else + share = 101; + + *bw_share = share == 0 ? 1 : share > 100 ? 0 : share; + + qos_dbg(htb->mdev, "Convert: rate %llu, parent ceil %llu -> bw_share %u\n", + rate, (u64)parent->max_average_bw * BYTES_IN_MBIT, *bw_share); + + return 0; +} + +static void mlx5e_htb_convert_ceil(struct mlx5e_htb *htb, u64 ceil, u32 *max_average_bw) +{ + /* Hardware treats 0 as "unlimited", set at least 1. */ + *max_average_bw = max_t(u32, div_u64(ceil, BYTES_IN_MBIT), 1); + + qos_dbg(htb->mdev, "Convert: ceil %llu -> max_average_bw %u\n", + ceil, *max_average_bw); +} + +int +mlx5e_htb_leaf_alloc_queue(struct mlx5e_htb *htb, u16 classid, + u32 parent_classid, u64 rate, u64 ceil, + struct netlink_ext_ack *extack) +{ + struct mlx5e_qos_node *node, *parent; + struct mlx5e_priv *priv = htb->priv; + int qid; + int err; + + qos_dbg(htb->mdev, "TC_HTB_LEAF_ALLOC_QUEUE classid %04x, parent %04x, rate %llu, ceil %llu\n", + classid, parent_classid, rate, ceil); + + qid = mlx5e_htb_find_unused_qos_qid(htb); + if (qid < 0) { + NL_SET_ERR_MSG_MOD(extack, "Maximum amount of leaf classes is reached."); + return qid; + } + + parent = mlx5e_htb_node_find(htb, parent_classid); + if (!parent) + return -EINVAL; + + node = mlx5e_htb_node_create_leaf(htb, classid, qid, parent); + if (IS_ERR(node)) + return PTR_ERR(node); + + node->rate = rate; + mlx5e_htb_convert_rate(htb, rate, node->parent, &node->bw_share); + mlx5e_htb_convert_ceil(htb, ceil, &node->max_average_bw); + + err = mlx5_qos_create_leaf_node(htb->mdev, node->parent->hw_id, + node->bw_share, node->max_average_bw, + &node->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error when creating a leaf node."); + qos_err(htb->mdev, "Failed to create a leaf node (class %04x), err = %d\n", + classid, err); + mlx5e_htb_node_delete(htb, node); + return err; + } + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + err = mlx5e_open_qos_sq(priv, &priv->channels, node->qid, node->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Error creating an SQ."); + qos_warn(htb->mdev, "Failed to create a QoS SQ (class %04x), err = %d\n", + classid, err); + } else { + mlx5e_activate_qos_sq(priv, node->qid, node->hw_id); + } + } + + return mlx5e_qid_from_qos(&priv->channels, node->qid); +} + +int +mlx5e_htb_leaf_to_inner(struct mlx5e_htb *htb, u16 classid, u16 child_classid, + u64 rate, u64 ceil, struct netlink_ext_ack *extack) +{ + struct mlx5e_qos_node *node, *child; + struct mlx5e_priv *priv = htb->priv; + int err, tmp_err; + u32 new_hw_id; + u16 qid; + + qos_dbg(htb->mdev, "TC_HTB_LEAF_TO_INNER classid %04x, upcoming child %04x, rate %llu, ceil %llu\n", + classid, child_classid, rate, ceil); + + node = mlx5e_htb_node_find(htb, classid); + if (!node) + return -ENOENT; + + err = mlx5_qos_create_inner_node(htb->mdev, node->parent->hw_id, + node->bw_share, node->max_average_bw, + &new_hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error when creating an inner node."); + qos_err(htb->mdev, "Failed to create an inner node (class %04x), err = %d\n", + classid, err); + return err; + } + + /* Intentionally reuse the qid for the upcoming first child. */ + child = mlx5e_htb_node_create_leaf(htb, child_classid, node->qid, node); + if (IS_ERR(child)) { + err = PTR_ERR(child); + goto err_destroy_hw_node; + } + + child->rate = rate; + mlx5e_htb_convert_rate(htb, rate, node, &child->bw_share); + mlx5e_htb_convert_ceil(htb, ceil, &child->max_average_bw); + + err = mlx5_qos_create_leaf_node(htb->mdev, new_hw_id, child->bw_share, + child->max_average_bw, &child->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error when creating a leaf node."); + qos_err(htb->mdev, "Failed to create a leaf node (class %04x), err = %d\n", + classid, err); + goto err_delete_sw_node; + } + + /* No fail point. */ + + qid = node->qid; + /* Pairs with mlx5e_htb_get_txq_by_classid. */ + WRITE_ONCE(node->qid, MLX5E_QOS_QID_INNER); + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + mlx5e_deactivate_qos_sq(priv, qid); + mlx5e_close_qos_sq(priv, qid); + } + + err = mlx5_qos_destroy_node(htb->mdev, node->hw_id); + if (err) /* Not fatal. */ + qos_warn(htb->mdev, "Failed to destroy leaf node %u (class %04x), err = %d\n", + node->hw_id, classid, err); + + node->hw_id = new_hw_id; + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + err = mlx5e_open_qos_sq(priv, &priv->channels, child->qid, child->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Error creating an SQ."); + qos_warn(htb->mdev, "Failed to create a QoS SQ (class %04x), err = %d\n", + classid, err); + } else { + mlx5e_activate_qos_sq(priv, child->qid, child->hw_id); + } + } + + return 0; + +err_delete_sw_node: + child->qid = MLX5E_QOS_QID_INNER; + mlx5e_htb_node_delete(htb, child); + +err_destroy_hw_node: + tmp_err = mlx5_qos_destroy_node(htb->mdev, new_hw_id); + if (tmp_err) /* Not fatal. */ + qos_warn(htb->mdev, "Failed to roll back creation of an inner node %u (class %04x), err = %d\n", + new_hw_id, classid, tmp_err); + return err; +} + +static struct mlx5e_qos_node *mlx5e_htb_node_find_by_qid(struct mlx5e_htb *htb, u16 qid) +{ + struct mlx5e_qos_node *node = NULL; + int bkt; + + hash_for_each(htb->qos_tc2node, bkt, node, hnode) + if (node->qid == qid) + break; + + return node; +} + +int mlx5e_htb_leaf_del(struct mlx5e_htb *htb, u16 *classid, + struct netlink_ext_ack *extack) +{ + struct mlx5e_priv *priv = htb->priv; + struct mlx5e_qos_node *node; + struct netdev_queue *txq; + u16 qid, moved_qid; + bool opened; + int err; + + qos_dbg(htb->mdev, "TC_HTB_LEAF_DEL classid %04x\n", *classid); + + node = mlx5e_htb_node_find(htb, *classid); + if (!node) + return -ENOENT; + + /* Store qid for reuse. */ + qid = node->qid; + + opened = test_bit(MLX5E_STATE_OPENED, &priv->state); + if (opened) { + txq = netdev_get_tx_queue(htb->netdev, + mlx5e_qid_from_qos(&priv->channels, qid)); + mlx5e_deactivate_qos_sq(priv, qid); + mlx5e_close_qos_sq(priv, qid); + } + + err = mlx5_qos_destroy_node(htb->mdev, node->hw_id); + if (err) /* Not fatal. */ + qos_warn(htb->mdev, "Failed to destroy leaf node %u (class %04x), err = %d\n", + node->hw_id, *classid, err); + + mlx5e_htb_node_delete(htb, node); + + moved_qid = mlx5e_htb_cur_leaf_nodes(htb); + + if (moved_qid == 0) { + /* The last QoS SQ was just destroyed. */ + if (opened) + mlx5e_reactivate_qos_sq(priv, qid, txq); + return 0; + } + moved_qid--; + + if (moved_qid < qid) { + /* The highest QoS SQ was just destroyed. */ + WARN(moved_qid != qid - 1, "Gaps in queue numeration: destroyed queue %u, the highest queue is %u", + qid, moved_qid); + if (opened) + mlx5e_reactivate_qos_sq(priv, qid, txq); + return 0; + } + + WARN(moved_qid == qid, "Can't move node with qid %u to itself", qid); + qos_dbg(htb->mdev, "Moving QoS SQ %u to %u\n", moved_qid, qid); + + node = mlx5e_htb_node_find_by_qid(htb, moved_qid); + WARN(!node, "Could not find a node with qid %u to move to queue %u", + moved_qid, qid); + + /* Stop traffic to the old queue. */ + WRITE_ONCE(node->qid, MLX5E_QOS_QID_INNER); + __clear_bit(moved_qid, priv->htb->qos_used_qids); + + if (opened) { + txq = netdev_get_tx_queue(htb->netdev, + mlx5e_qid_from_qos(&priv->channels, moved_qid)); + mlx5e_deactivate_qos_sq(priv, moved_qid); + mlx5e_close_qos_sq(priv, moved_qid); + } + + /* Prevent packets from the old class from getting into the new one. */ + mlx5e_reset_qdisc(htb->netdev, moved_qid); + + __set_bit(qid, htb->qos_used_qids); + WRITE_ONCE(node->qid, qid); + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + err = mlx5e_open_qos_sq(priv, &priv->channels, node->qid, node->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Error creating an SQ."); + qos_warn(htb->mdev, "Failed to create a QoS SQ (class %04x) while moving qid %u to %u, err = %d\n", + node->classid, moved_qid, qid, err); + } else { + mlx5e_activate_qos_sq(priv, node->qid, node->hw_id); + } + } + + mlx5e_update_tx_netdev_queues(priv); + if (opened) + mlx5e_reactivate_qos_sq(priv, moved_qid, txq); + + *classid = node->classid; + return 0; +} + +int +mlx5e_htb_leaf_del_last(struct mlx5e_htb *htb, u16 classid, bool force, + struct netlink_ext_ack *extack) +{ + struct mlx5e_qos_node *node, *parent; + struct mlx5e_priv *priv = htb->priv; + u32 old_hw_id, new_hw_id; + int err, saved_err = 0; + u16 qid; + + qos_dbg(htb->mdev, "TC_HTB_LEAF_DEL_LAST%s classid %04x\n", + force ? "_FORCE" : "", classid); + + node = mlx5e_htb_node_find(htb, classid); + if (!node) + return -ENOENT; + + err = mlx5_qos_create_leaf_node(htb->mdev, node->parent->parent->hw_id, + node->parent->bw_share, + node->parent->max_average_bw, + &new_hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error when creating a leaf node."); + qos_err(htb->mdev, "Failed to create a leaf node (class %04x), err = %d\n", + classid, err); + if (!force) + return err; + saved_err = err; + } + + /* Store qid for reuse and prevent clearing the bit. */ + qid = node->qid; + /* Pairs with mlx5e_htb_get_txq_by_classid. */ + WRITE_ONCE(node->qid, MLX5E_QOS_QID_INNER); + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + mlx5e_deactivate_qos_sq(priv, qid); + mlx5e_close_qos_sq(priv, qid); + } + + /* Prevent packets from the old class from getting into the new one. */ + mlx5e_reset_qdisc(htb->netdev, qid); + + err = mlx5_qos_destroy_node(htb->mdev, node->hw_id); + if (err) /* Not fatal. */ + qos_warn(htb->mdev, "Failed to destroy leaf node %u (class %04x), err = %d\n", + node->hw_id, classid, err); + + parent = node->parent; + mlx5e_htb_node_delete(htb, node); + + node = parent; + WRITE_ONCE(node->qid, qid); + + /* Early return on error in force mode. Parent will still be an inner + * node to be deleted by a following delete operation. + */ + if (saved_err) + return saved_err; + + old_hw_id = node->hw_id; + node->hw_id = new_hw_id; + + if (test_bit(MLX5E_STATE_OPENED, &priv->state)) { + err = mlx5e_open_qos_sq(priv, &priv->channels, node->qid, node->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Error creating an SQ."); + qos_warn(htb->mdev, "Failed to create a QoS SQ (class %04x), err = %d\n", + classid, err); + } else { + mlx5e_activate_qos_sq(priv, node->qid, node->hw_id); + } + } + + err = mlx5_qos_destroy_node(htb->mdev, old_hw_id); + if (err) /* Not fatal. */ + qos_warn(htb->mdev, "Failed to destroy leaf node %u (class %04x), err = %d\n", + node->hw_id, classid, err); + + return 0; +} + +static int +mlx5e_htb_update_children(struct mlx5e_htb *htb, struct mlx5e_qos_node *node, + struct netlink_ext_ack *extack) +{ + struct mlx5e_qos_node *child; + int err = 0; + int bkt; + + hash_for_each(htb->qos_tc2node, bkt, child, hnode) { + u32 old_bw_share = child->bw_share; + int err_one; + + if (child->parent != node) + continue; + + mlx5e_htb_convert_rate(htb, child->rate, node, &child->bw_share); + if (child->bw_share == old_bw_share) + continue; + + err_one = mlx5_qos_update_node(htb->mdev, child->hw_id, child->bw_share, + child->max_average_bw, child->hw_id); + if (!err && err_one) { + err = err_one; + + NL_SET_ERR_MSG_MOD(extack, "Firmware error when modifying a child node."); + qos_err(htb->mdev, "Failed to modify a child node (class %04x), err = %d\n", + node->classid, err); + } + } + + return err; +} + +int +mlx5e_htb_node_modify(struct mlx5e_htb *htb, u16 classid, u64 rate, u64 ceil, + struct netlink_ext_ack *extack) +{ + u32 bw_share, max_average_bw; + struct mlx5e_qos_node *node; + bool ceil_changed = false; + int err; + + qos_dbg(htb->mdev, "TC_HTB_LEAF_MODIFY classid %04x, rate %llu, ceil %llu\n", + classid, rate, ceil); + + node = mlx5e_htb_node_find(htb, classid); + if (!node) + return -ENOENT; + + node->rate = rate; + mlx5e_htb_convert_rate(htb, rate, node->parent, &bw_share); + mlx5e_htb_convert_ceil(htb, ceil, &max_average_bw); + + err = mlx5_qos_update_node(htb->mdev, node->parent->hw_id, bw_share, + max_average_bw, node->hw_id); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Firmware error when modifying a node."); + qos_err(htb->mdev, "Failed to modify a node (class %04x), err = %d\n", + classid, err); + return err; + } + + if (max_average_bw != node->max_average_bw) + ceil_changed = true; + + node->bw_share = bw_share; + node->max_average_bw = max_average_bw; + + if (ceil_changed) + err = mlx5e_htb_update_children(htb, node, extack); + + return err; +} + +struct mlx5e_htb *mlx5e_htb_alloc(void) +{ + return kvzalloc(sizeof(struct mlx5e_htb), GFP_KERNEL); +} + +void mlx5e_htb_free(struct mlx5e_htb *htb) +{ + kvfree(htb); +} + +int mlx5e_htb_init(struct mlx5e_htb *htb, struct tc_htb_qopt_offload *htb_qopt, + struct net_device *netdev, struct mlx5_core_dev *mdev, + struct mlx5e_selq *selq, struct mlx5e_priv *priv) +{ + htb->mdev = mdev; + htb->netdev = netdev; + htb->selq = selq; + htb->priv = priv; + hash_init(htb->qos_tc2node); + return mlx5e_htb_root_add(htb, htb_qopt->parent_classid, htb_qopt->classid, + htb_qopt->extack); +} + +void mlx5e_htb_cleanup(struct mlx5e_htb *htb) +{ + mlx5e_htb_root_del(htb); +} + |