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![Jiri Pirko](/assets/img/avatar_default.png)
Cut out another chunk from leftover.c and put rate related code into a separate file. Signed-off-by: Jiri Pirko <jiri@nvidia.com> Link: https://lore.kernel.org/r/20230828061657.300667-12-jiri@resnulli.us Signed-off-by: Jakub Kicinski <kuba@kernel.org>
722 lines
20 KiB
C
722 lines
20 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
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* Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
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*/
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#include "devl_internal.h"
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static inline bool
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devlink_rate_is_leaf(struct devlink_rate *devlink_rate)
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{
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return devlink_rate->type == DEVLINK_RATE_TYPE_LEAF;
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}
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static inline bool
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devlink_rate_is_node(struct devlink_rate *devlink_rate)
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{
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return devlink_rate->type == DEVLINK_RATE_TYPE_NODE;
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}
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static struct devlink_rate *
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devlink_rate_leaf_get_from_info(struct devlink *devlink, struct genl_info *info)
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{
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struct devlink_rate *devlink_rate;
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struct devlink_port *devlink_port;
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devlink_port = devlink_port_get_from_attrs(devlink, info->attrs);
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if (IS_ERR(devlink_port))
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return ERR_CAST(devlink_port);
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devlink_rate = devlink_port->devlink_rate;
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return devlink_rate ?: ERR_PTR(-ENODEV);
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}
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static struct devlink_rate *
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devlink_rate_node_get_by_name(struct devlink *devlink, const char *node_name)
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{
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static struct devlink_rate *devlink_rate;
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list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
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if (devlink_rate_is_node(devlink_rate) &&
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!strcmp(node_name, devlink_rate->name))
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return devlink_rate;
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}
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return ERR_PTR(-ENODEV);
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}
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static struct devlink_rate *
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devlink_rate_node_get_from_attrs(struct devlink *devlink, struct nlattr **attrs)
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{
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const char *rate_node_name;
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size_t len;
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if (!attrs[DEVLINK_ATTR_RATE_NODE_NAME])
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return ERR_PTR(-EINVAL);
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rate_node_name = nla_data(attrs[DEVLINK_ATTR_RATE_NODE_NAME]);
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len = strlen(rate_node_name);
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/* Name cannot be empty or decimal number */
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if (!len || strspn(rate_node_name, "0123456789") == len)
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return ERR_PTR(-EINVAL);
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return devlink_rate_node_get_by_name(devlink, rate_node_name);
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}
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static struct devlink_rate *
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devlink_rate_node_get_from_info(struct devlink *devlink, struct genl_info *info)
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{
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return devlink_rate_node_get_from_attrs(devlink, info->attrs);
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}
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static struct devlink_rate *
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devlink_rate_get_from_info(struct devlink *devlink, struct genl_info *info)
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{
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struct nlattr **attrs = info->attrs;
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if (attrs[DEVLINK_ATTR_PORT_INDEX])
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return devlink_rate_leaf_get_from_info(devlink, info);
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else if (attrs[DEVLINK_ATTR_RATE_NODE_NAME])
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return devlink_rate_node_get_from_info(devlink, info);
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else
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return ERR_PTR(-EINVAL);
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}
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static int devlink_nl_rate_fill(struct sk_buff *msg,
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struct devlink_rate *devlink_rate,
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enum devlink_command cmd, u32 portid, u32 seq,
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int flags, struct netlink_ext_ack *extack)
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{
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struct devlink *devlink = devlink_rate->devlink;
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void *hdr;
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hdr = genlmsg_put(msg, portid, seq, &devlink_nl_family, flags, cmd);
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if (!hdr)
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return -EMSGSIZE;
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if (devlink_nl_put_handle(msg, devlink))
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goto nla_put_failure;
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if (nla_put_u16(msg, DEVLINK_ATTR_RATE_TYPE, devlink_rate->type))
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goto nla_put_failure;
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if (devlink_rate_is_leaf(devlink_rate)) {
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if (nla_put_u32(msg, DEVLINK_ATTR_PORT_INDEX,
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devlink_rate->devlink_port->index))
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goto nla_put_failure;
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} else if (devlink_rate_is_node(devlink_rate)) {
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if (nla_put_string(msg, DEVLINK_ATTR_RATE_NODE_NAME,
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devlink_rate->name))
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goto nla_put_failure;
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}
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if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_SHARE,
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devlink_rate->tx_share, DEVLINK_ATTR_PAD))
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goto nla_put_failure;
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if (nla_put_u64_64bit(msg, DEVLINK_ATTR_RATE_TX_MAX,
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devlink_rate->tx_max, DEVLINK_ATTR_PAD))
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goto nla_put_failure;
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if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_PRIORITY,
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devlink_rate->tx_priority))
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goto nla_put_failure;
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if (nla_put_u32(msg, DEVLINK_ATTR_RATE_TX_WEIGHT,
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devlink_rate->tx_weight))
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goto nla_put_failure;
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if (devlink_rate->parent)
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if (nla_put_string(msg, DEVLINK_ATTR_RATE_PARENT_NODE_NAME,
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devlink_rate->parent->name))
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goto nla_put_failure;
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genlmsg_end(msg, hdr);
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return 0;
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nla_put_failure:
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genlmsg_cancel(msg, hdr);
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return -EMSGSIZE;
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}
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static void devlink_rate_notify(struct devlink_rate *devlink_rate,
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enum devlink_command cmd)
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{
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struct devlink *devlink = devlink_rate->devlink;
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struct sk_buff *msg;
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int err;
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WARN_ON(cmd != DEVLINK_CMD_RATE_NEW && cmd != DEVLINK_CMD_RATE_DEL);
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if (!xa_get_mark(&devlinks, devlink->index, DEVLINK_REGISTERED))
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return;
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msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!msg)
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return;
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err = devlink_nl_rate_fill(msg, devlink_rate, cmd, 0, 0, 0, NULL);
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if (err) {
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nlmsg_free(msg);
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return;
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}
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genlmsg_multicast_netns(&devlink_nl_family, devlink_net(devlink), msg,
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0, DEVLINK_MCGRP_CONFIG, GFP_KERNEL);
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}
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void devlink_rates_notify_register(struct devlink *devlink)
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{
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struct devlink_rate *rate_node;
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list_for_each_entry(rate_node, &devlink->rate_list, list)
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devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW);
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}
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void devlink_rates_notify_unregister(struct devlink *devlink)
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{
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struct devlink_rate *rate_node;
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list_for_each_entry_reverse(rate_node, &devlink->rate_list, list)
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devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL);
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}
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static int
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devlink_nl_rate_get_dump_one(struct sk_buff *msg, struct devlink *devlink,
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struct netlink_callback *cb, int flags)
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{
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struct devlink_nl_dump_state *state = devlink_dump_state(cb);
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struct devlink_rate *devlink_rate;
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int idx = 0;
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int err = 0;
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list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
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enum devlink_command cmd = DEVLINK_CMD_RATE_NEW;
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u32 id = NETLINK_CB(cb->skb).portid;
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if (idx < state->idx) {
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idx++;
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continue;
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}
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err = devlink_nl_rate_fill(msg, devlink_rate, cmd, id,
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cb->nlh->nlmsg_seq, flags, NULL);
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if (err) {
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state->idx = idx;
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break;
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}
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idx++;
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}
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return err;
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}
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int devlink_nl_rate_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
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{
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return devlink_nl_dumpit(skb, cb, devlink_nl_rate_get_dump_one);
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}
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int devlink_nl_rate_get_doit(struct sk_buff *skb, struct genl_info *info)
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{
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struct devlink *devlink = info->user_ptr[0];
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struct devlink_rate *devlink_rate;
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struct sk_buff *msg;
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int err;
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devlink_rate = devlink_rate_get_from_info(devlink, info);
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if (IS_ERR(devlink_rate))
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return PTR_ERR(devlink_rate);
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msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
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if (!msg)
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return -ENOMEM;
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err = devlink_nl_rate_fill(msg, devlink_rate, DEVLINK_CMD_RATE_NEW,
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info->snd_portid, info->snd_seq, 0,
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info->extack);
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if (err) {
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nlmsg_free(msg);
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return err;
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}
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return genlmsg_reply(msg, info);
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}
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static bool
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devlink_rate_is_parent_node(struct devlink_rate *devlink_rate,
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struct devlink_rate *parent)
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{
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while (parent) {
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if (parent == devlink_rate)
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return true;
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parent = parent->parent;
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}
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return false;
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}
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static int
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devlink_nl_rate_parent_node_set(struct devlink_rate *devlink_rate,
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struct genl_info *info,
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struct nlattr *nla_parent)
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{
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struct devlink *devlink = devlink_rate->devlink;
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const char *parent_name = nla_data(nla_parent);
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const struct devlink_ops *ops = devlink->ops;
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size_t len = strlen(parent_name);
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struct devlink_rate *parent;
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int err = -EOPNOTSUPP;
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parent = devlink_rate->parent;
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if (parent && !len) {
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_parent_set(devlink_rate, NULL,
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devlink_rate->priv, NULL,
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info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_parent_set(devlink_rate, NULL,
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devlink_rate->priv, NULL,
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info->extack);
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if (err)
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return err;
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refcount_dec(&parent->refcnt);
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devlink_rate->parent = NULL;
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} else if (len) {
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parent = devlink_rate_node_get_by_name(devlink, parent_name);
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if (IS_ERR(parent))
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return -ENODEV;
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if (parent == devlink_rate) {
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NL_SET_ERR_MSG(info->extack, "Parent to self is not allowed");
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return -EINVAL;
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}
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if (devlink_rate_is_node(devlink_rate) &&
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devlink_rate_is_parent_node(devlink_rate, parent->parent)) {
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NL_SET_ERR_MSG(info->extack, "Node is already a parent of parent node.");
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return -EEXIST;
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}
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_parent_set(devlink_rate, parent,
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devlink_rate->priv, parent->priv,
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info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_parent_set(devlink_rate, parent,
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devlink_rate->priv, parent->priv,
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info->extack);
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if (err)
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return err;
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if (devlink_rate->parent)
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/* we're reassigning to other parent in this case */
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refcount_dec(&devlink_rate->parent->refcnt);
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refcount_inc(&parent->refcnt);
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devlink_rate->parent = parent;
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}
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return 0;
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}
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static int devlink_nl_rate_set(struct devlink_rate *devlink_rate,
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const struct devlink_ops *ops,
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struct genl_info *info)
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{
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struct nlattr *nla_parent, **attrs = info->attrs;
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int err = -EOPNOTSUPP;
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u32 priority;
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u32 weight;
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u64 rate;
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if (attrs[DEVLINK_ATTR_RATE_TX_SHARE]) {
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rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_SHARE]);
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_tx_share_set(devlink_rate, devlink_rate->priv,
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rate, info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_tx_share_set(devlink_rate, devlink_rate->priv,
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rate, info->extack);
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if (err)
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return err;
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devlink_rate->tx_share = rate;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_MAX]) {
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rate = nla_get_u64(attrs[DEVLINK_ATTR_RATE_TX_MAX]);
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_tx_max_set(devlink_rate, devlink_rate->priv,
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rate, info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_tx_max_set(devlink_rate, devlink_rate->priv,
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rate, info->extack);
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if (err)
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return err;
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devlink_rate->tx_max = rate;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]) {
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priority = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_PRIORITY]);
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_tx_priority_set(devlink_rate, devlink_rate->priv,
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priority, info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_tx_priority_set(devlink_rate, devlink_rate->priv,
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priority, info->extack);
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if (err)
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return err;
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devlink_rate->tx_priority = priority;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]) {
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weight = nla_get_u32(attrs[DEVLINK_ATTR_RATE_TX_WEIGHT]);
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if (devlink_rate_is_leaf(devlink_rate))
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err = ops->rate_leaf_tx_weight_set(devlink_rate, devlink_rate->priv,
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weight, info->extack);
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else if (devlink_rate_is_node(devlink_rate))
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err = ops->rate_node_tx_weight_set(devlink_rate, devlink_rate->priv,
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weight, info->extack);
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if (err)
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return err;
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devlink_rate->tx_weight = weight;
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}
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nla_parent = attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME];
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if (nla_parent) {
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err = devlink_nl_rate_parent_node_set(devlink_rate, info,
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nla_parent);
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if (err)
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return err;
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}
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return 0;
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}
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static bool devlink_rate_set_ops_supported(const struct devlink_ops *ops,
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struct genl_info *info,
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enum devlink_rate_type type)
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{
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struct nlattr **attrs = info->attrs;
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if (type == DEVLINK_RATE_TYPE_LEAF) {
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if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_leaf_tx_share_set) {
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NL_SET_ERR_MSG(info->extack, "TX share set isn't supported for the leafs");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_leaf_tx_max_set) {
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NL_SET_ERR_MSG(info->extack, "TX max set isn't supported for the leafs");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] &&
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!ops->rate_leaf_parent_set) {
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NL_SET_ERR_MSG(info->extack, "Parent set isn't supported for the leafs");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_leaf_tx_priority_set) {
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NL_SET_ERR_MSG_ATTR(info->extack,
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attrs[DEVLINK_ATTR_RATE_TX_PRIORITY],
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"TX priority set isn't supported for the leafs");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_leaf_tx_weight_set) {
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NL_SET_ERR_MSG_ATTR(info->extack,
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attrs[DEVLINK_ATTR_RATE_TX_WEIGHT],
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"TX weight set isn't supported for the leafs");
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return false;
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}
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} else if (type == DEVLINK_RATE_TYPE_NODE) {
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if (attrs[DEVLINK_ATTR_RATE_TX_SHARE] && !ops->rate_node_tx_share_set) {
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NL_SET_ERR_MSG(info->extack, "TX share set isn't supported for the nodes");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_MAX] && !ops->rate_node_tx_max_set) {
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NL_SET_ERR_MSG(info->extack, "TX max set isn't supported for the nodes");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_PARENT_NODE_NAME] &&
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!ops->rate_node_parent_set) {
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NL_SET_ERR_MSG(info->extack, "Parent set isn't supported for the nodes");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_PRIORITY] && !ops->rate_node_tx_priority_set) {
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NL_SET_ERR_MSG_ATTR(info->extack,
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attrs[DEVLINK_ATTR_RATE_TX_PRIORITY],
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"TX priority set isn't supported for the nodes");
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return false;
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}
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if (attrs[DEVLINK_ATTR_RATE_TX_WEIGHT] && !ops->rate_node_tx_weight_set) {
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NL_SET_ERR_MSG_ATTR(info->extack,
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attrs[DEVLINK_ATTR_RATE_TX_WEIGHT],
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"TX weight set isn't supported for the nodes");
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return false;
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}
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} else {
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WARN(1, "Unknown type of rate object");
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return false;
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}
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return true;
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}
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int devlink_nl_cmd_rate_set_doit(struct sk_buff *skb, struct genl_info *info)
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{
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struct devlink *devlink = info->user_ptr[0];
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struct devlink_rate *devlink_rate;
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const struct devlink_ops *ops;
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int err;
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|
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devlink_rate = devlink_rate_get_from_info(devlink, info);
|
|
if (IS_ERR(devlink_rate))
|
|
return PTR_ERR(devlink_rate);
|
|
|
|
ops = devlink->ops;
|
|
if (!ops || !devlink_rate_set_ops_supported(ops, info, devlink_rate->type))
|
|
return -EOPNOTSUPP;
|
|
|
|
err = devlink_nl_rate_set(devlink_rate, ops, info);
|
|
|
|
if (!err)
|
|
devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW);
|
|
return err;
|
|
}
|
|
|
|
int devlink_nl_cmd_rate_new_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_rate *rate_node;
|
|
const struct devlink_ops *ops;
|
|
int err;
|
|
|
|
ops = devlink->ops;
|
|
if (!ops || !ops->rate_node_new || !ops->rate_node_del) {
|
|
NL_SET_ERR_MSG(info->extack, "Rate nodes aren't supported");
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
if (!devlink_rate_set_ops_supported(ops, info, DEVLINK_RATE_TYPE_NODE))
|
|
return -EOPNOTSUPP;
|
|
|
|
rate_node = devlink_rate_node_get_from_attrs(devlink, info->attrs);
|
|
if (!IS_ERR(rate_node))
|
|
return -EEXIST;
|
|
else if (rate_node == ERR_PTR(-EINVAL))
|
|
return -EINVAL;
|
|
|
|
rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL);
|
|
if (!rate_node)
|
|
return -ENOMEM;
|
|
|
|
rate_node->devlink = devlink;
|
|
rate_node->type = DEVLINK_RATE_TYPE_NODE;
|
|
rate_node->name = nla_strdup(info->attrs[DEVLINK_ATTR_RATE_NODE_NAME], GFP_KERNEL);
|
|
if (!rate_node->name) {
|
|
err = -ENOMEM;
|
|
goto err_strdup;
|
|
}
|
|
|
|
err = ops->rate_node_new(rate_node, &rate_node->priv, info->extack);
|
|
if (err)
|
|
goto err_node_new;
|
|
|
|
err = devlink_nl_rate_set(rate_node, ops, info);
|
|
if (err)
|
|
goto err_rate_set;
|
|
|
|
refcount_set(&rate_node->refcnt, 1);
|
|
list_add(&rate_node->list, &devlink->rate_list);
|
|
devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW);
|
|
return 0;
|
|
|
|
err_rate_set:
|
|
ops->rate_node_del(rate_node, rate_node->priv, info->extack);
|
|
err_node_new:
|
|
kfree(rate_node->name);
|
|
err_strdup:
|
|
kfree(rate_node);
|
|
return err;
|
|
}
|
|
|
|
int devlink_nl_cmd_rate_del_doit(struct sk_buff *skb, struct genl_info *info)
|
|
{
|
|
struct devlink *devlink = info->user_ptr[0];
|
|
struct devlink_rate *rate_node;
|
|
int err;
|
|
|
|
rate_node = devlink_rate_node_get_from_info(devlink, info);
|
|
if (IS_ERR(rate_node))
|
|
return PTR_ERR(rate_node);
|
|
|
|
if (refcount_read(&rate_node->refcnt) > 1) {
|
|
NL_SET_ERR_MSG(info->extack, "Node has children. Cannot delete node.");
|
|
return -EBUSY;
|
|
}
|
|
|
|
devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_DEL);
|
|
err = devlink->ops->rate_node_del(rate_node, rate_node->priv,
|
|
info->extack);
|
|
if (rate_node->parent)
|
|
refcount_dec(&rate_node->parent->refcnt);
|
|
list_del(&rate_node->list);
|
|
kfree(rate_node->name);
|
|
kfree(rate_node);
|
|
return err;
|
|
}
|
|
|
|
int devlink_rate_nodes_check(struct devlink *devlink, u16 mode,
|
|
struct netlink_ext_ack *extack)
|
|
{
|
|
struct devlink_rate *devlink_rate;
|
|
|
|
list_for_each_entry(devlink_rate, &devlink->rate_list, list)
|
|
if (devlink_rate_is_node(devlink_rate)) {
|
|
NL_SET_ERR_MSG(extack, "Rate node(s) exists.");
|
|
return -EBUSY;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* devl_rate_node_create - create devlink rate node
|
|
* @devlink: devlink instance
|
|
* @priv: driver private data
|
|
* @node_name: name of the resulting node
|
|
* @parent: parent devlink_rate struct
|
|
*
|
|
* Create devlink rate object of type node
|
|
*/
|
|
struct devlink_rate *
|
|
devl_rate_node_create(struct devlink *devlink, void *priv, char *node_name,
|
|
struct devlink_rate *parent)
|
|
{
|
|
struct devlink_rate *rate_node;
|
|
|
|
rate_node = devlink_rate_node_get_by_name(devlink, node_name);
|
|
if (!IS_ERR(rate_node))
|
|
return ERR_PTR(-EEXIST);
|
|
|
|
rate_node = kzalloc(sizeof(*rate_node), GFP_KERNEL);
|
|
if (!rate_node)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
if (parent) {
|
|
rate_node->parent = parent;
|
|
refcount_inc(&rate_node->parent->refcnt);
|
|
}
|
|
|
|
rate_node->type = DEVLINK_RATE_TYPE_NODE;
|
|
rate_node->devlink = devlink;
|
|
rate_node->priv = priv;
|
|
|
|
rate_node->name = kstrdup(node_name, GFP_KERNEL);
|
|
if (!rate_node->name) {
|
|
kfree(rate_node);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
refcount_set(&rate_node->refcnt, 1);
|
|
list_add(&rate_node->list, &devlink->rate_list);
|
|
devlink_rate_notify(rate_node, DEVLINK_CMD_RATE_NEW);
|
|
return rate_node;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_rate_node_create);
|
|
|
|
/**
|
|
* devl_rate_leaf_create - create devlink rate leaf
|
|
* @devlink_port: devlink port object to create rate object on
|
|
* @priv: driver private data
|
|
* @parent: parent devlink_rate struct
|
|
*
|
|
* Create devlink rate object of type leaf on provided @devlink_port.
|
|
*/
|
|
int devl_rate_leaf_create(struct devlink_port *devlink_port, void *priv,
|
|
struct devlink_rate *parent)
|
|
{
|
|
struct devlink *devlink = devlink_port->devlink;
|
|
struct devlink_rate *devlink_rate;
|
|
|
|
devl_assert_locked(devlink_port->devlink);
|
|
|
|
if (WARN_ON(devlink_port->devlink_rate))
|
|
return -EBUSY;
|
|
|
|
devlink_rate = kzalloc(sizeof(*devlink_rate), GFP_KERNEL);
|
|
if (!devlink_rate)
|
|
return -ENOMEM;
|
|
|
|
if (parent) {
|
|
devlink_rate->parent = parent;
|
|
refcount_inc(&devlink_rate->parent->refcnt);
|
|
}
|
|
|
|
devlink_rate->type = DEVLINK_RATE_TYPE_LEAF;
|
|
devlink_rate->devlink = devlink;
|
|
devlink_rate->devlink_port = devlink_port;
|
|
devlink_rate->priv = priv;
|
|
list_add_tail(&devlink_rate->list, &devlink->rate_list);
|
|
devlink_port->devlink_rate = devlink_rate;
|
|
devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_NEW);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_rate_leaf_create);
|
|
|
|
/**
|
|
* devl_rate_leaf_destroy - destroy devlink rate leaf
|
|
*
|
|
* @devlink_port: devlink port linked to the rate object
|
|
*
|
|
* Destroy the devlink rate object of type leaf on provided @devlink_port.
|
|
*/
|
|
void devl_rate_leaf_destroy(struct devlink_port *devlink_port)
|
|
{
|
|
struct devlink_rate *devlink_rate = devlink_port->devlink_rate;
|
|
|
|
devl_assert_locked(devlink_port->devlink);
|
|
if (!devlink_rate)
|
|
return;
|
|
|
|
devlink_rate_notify(devlink_rate, DEVLINK_CMD_RATE_DEL);
|
|
if (devlink_rate->parent)
|
|
refcount_dec(&devlink_rate->parent->refcnt);
|
|
list_del(&devlink_rate->list);
|
|
devlink_port->devlink_rate = NULL;
|
|
kfree(devlink_rate);
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_rate_leaf_destroy);
|
|
|
|
/**
|
|
* devl_rate_nodes_destroy - destroy all devlink rate nodes on device
|
|
* @devlink: devlink instance
|
|
*
|
|
* Unset parent for all rate objects and destroy all rate nodes
|
|
* on specified device.
|
|
*/
|
|
void devl_rate_nodes_destroy(struct devlink *devlink)
|
|
{
|
|
static struct devlink_rate *devlink_rate, *tmp;
|
|
const struct devlink_ops *ops = devlink->ops;
|
|
|
|
devl_assert_locked(devlink);
|
|
|
|
list_for_each_entry(devlink_rate, &devlink->rate_list, list) {
|
|
if (!devlink_rate->parent)
|
|
continue;
|
|
|
|
refcount_dec(&devlink_rate->parent->refcnt);
|
|
if (devlink_rate_is_leaf(devlink_rate))
|
|
ops->rate_leaf_parent_set(devlink_rate, NULL, devlink_rate->priv,
|
|
NULL, NULL);
|
|
else if (devlink_rate_is_node(devlink_rate))
|
|
ops->rate_node_parent_set(devlink_rate, NULL, devlink_rate->priv,
|
|
NULL, NULL);
|
|
}
|
|
list_for_each_entry_safe(devlink_rate, tmp, &devlink->rate_list, list) {
|
|
if (devlink_rate_is_node(devlink_rate)) {
|
|
ops->rate_node_del(devlink_rate, devlink_rate->priv, NULL);
|
|
list_del(&devlink_rate->list);
|
|
kfree(devlink_rate->name);
|
|
kfree(devlink_rate);
|
|
}
|
|
}
|
|
}
|
|
EXPORT_SYMBOL_GPL(devl_rate_nodes_destroy);
|