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/* SPDX-License-Identifier: LGPL-2.1-only */
/*
* Copyright (c) 2013 Cong Wang <xiyou.wangcong@gmail.com>
*/
/**
* @ingroup qdisc
* @defgroup qdisc_fq_codel Fair Queue CoDel
* @brief
*
* @{
*/
#include <netlink-private/netlink.h>
#include <netlink-private/tc.h>
#include <netlink/netlink.h>
#include <netlink-private/route/tc-api.h>
#include <netlink/route/qdisc.h>
#include <netlink/route/qdisc/fq_codel.h>
#include <netlink/utils.h>
/** @cond SKIP */
#define SCH_FQ_CODEL_ATTR_TARGET 0x1
#define SCH_FQ_CODEL_ATTR_LIMIT 0x2
#define SCH_FQ_CODEL_ATTR_INTERVAL 0x4
#define SCH_FQ_CODEL_ATTR_FLOWS 0x8
#define SCH_FQ_CODEL_ATTR_QUANTUM 0x10
#define SCH_FQ_CODEL_ATTR_ECN 0x20
/** @endcond */
static struct nla_policy fq_codel_policy[TCA_FQ_CODEL_MAX + 1] = {
[TCA_FQ_CODEL_TARGET] = { .type = NLA_U32 },
[TCA_FQ_CODEL_LIMIT] = { .type = NLA_U32 },
[TCA_FQ_CODEL_INTERVAL] = { .type = NLA_U32 },
[TCA_FQ_CODEL_ECN] = { .type = NLA_U32 },
[TCA_FQ_CODEL_FLOWS] = { .type = NLA_U32 },
[TCA_FQ_CODEL_QUANTUM] = { .type = NLA_U32 },
};
static int fq_codel_msg_parser(struct rtnl_tc *tc, void *data)
{
struct rtnl_fq_codel *fq_codel = data;
struct nlattr *tb[TCA_FQ_CODEL_MAX + 1];
int err;
err = tca_parse(tb, TCA_FQ_CODEL_MAX, tc, fq_codel_policy);
if (err < 0)
return err;
if (tb[TCA_FQ_CODEL_TARGET]) {
fq_codel->fq_target = nla_get_u32(tb[TCA_FQ_CODEL_TARGET]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_TARGET;
}
if (tb[TCA_FQ_CODEL_INTERVAL]) {
fq_codel->fq_interval = nla_get_u32(tb[TCA_FQ_CODEL_INTERVAL]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_INTERVAL;
}
if (tb[TCA_FQ_CODEL_LIMIT]) {
fq_codel->fq_limit = nla_get_u32(tb[TCA_FQ_CODEL_LIMIT]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_LIMIT;
}
if (tb[TCA_FQ_CODEL_QUANTUM]) {
fq_codel->fq_quantum = nla_get_u32(tb[TCA_FQ_CODEL_QUANTUM]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_QUANTUM;
}
if (tb[TCA_FQ_CODEL_FLOWS]) {
fq_codel->fq_flows = nla_get_u32(tb[TCA_FQ_CODEL_FLOWS]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_FLOWS;
}
if (tb[TCA_FQ_CODEL_ECN]) {
fq_codel->fq_ecn = nla_get_u32(tb[TCA_FQ_CODEL_ECN]);
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_ECN;
}
return 0;
}
static void fq_codel_dump_line(struct rtnl_tc *tc, void *data,
struct nl_dump_params *p)
{
struct rtnl_fq_codel *fq_codel = data;
if (!fq_codel)
return;
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_LIMIT)
nl_dump(p, " limit %u packets", fq_codel->fq_limit);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_TARGET)
nl_dump(p, " target %u", fq_codel->fq_target);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_INTERVAL)
nl_dump(p, " interval %u", fq_codel->fq_interval);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_ECN)
nl_dump(p, " ecn %u", fq_codel->fq_ecn);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_FLOWS)
nl_dump(p, " flows %u", fq_codel->fq_flows);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_QUANTUM)
nl_dump(p, " quantum %u", fq_codel->fq_quantum);
}
static int fq_codel_msg_fill(struct rtnl_tc *tc, void *data, struct nl_msg *msg)
{
struct rtnl_fq_codel *fq_codel = data;
if (!fq_codel)
return -NLE_INVAL;
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_LIMIT)
NLA_PUT_U32(msg, TCA_FQ_CODEL_LIMIT, fq_codel->fq_limit);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_INTERVAL)
NLA_PUT_U32(msg, TCA_FQ_CODEL_INTERVAL, fq_codel->fq_interval);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_TARGET)
NLA_PUT_U32(msg, TCA_FQ_CODEL_TARGET, fq_codel->fq_target);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_QUANTUM)
NLA_PUT_U32(msg, TCA_FQ_CODEL_QUANTUM, fq_codel->fq_quantum);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_FLOWS)
NLA_PUT_U32(msg, TCA_FQ_CODEL_FLOWS, fq_codel->fq_flows);
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_ECN)
NLA_PUT_U32(msg, TCA_FQ_CODEL_ECN, fq_codel->fq_ecn);
return 0;
nla_put_failure:
return -NLE_MSGSIZE;
}
/**
* @name Attribute Modification
* @{
*/
/**
* Set limit of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg limit New limit.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_limit(struct rtnl_qdisc *qdisc, int limit)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_limit = limit;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_LIMIT;
return 0;
}
/**
* Get limit of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric limit or a negative error code.
*/
int rtnl_qdisc_fq_codel_get_limit(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_LIMIT)
return fq_codel->fq_limit;
else
return -NLE_NOATTR;
}
/**
* Set target of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg target New target.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_target(struct rtnl_qdisc *qdisc, uint32_t target)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_target = target;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_TARGET;
return 0;
}
/**
* Get target of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric target or zero.
*/
uint32_t rtnl_qdisc_fq_codel_get_target(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if ((fq_codel = rtnl_tc_data(TC_CAST(qdisc))) &&
fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_TARGET)
return fq_codel->fq_target;
else
return 0;
}
/**
* Set interval of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg interval New interval.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_interval(struct rtnl_qdisc *qdisc, uint32_t interval)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_interval = interval;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_INTERVAL;
return 0;
}
/**
* Get target of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric interval or zero.
*/
uint32_t rtnl_qdisc_fq_codel_get_interval(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if ((fq_codel = rtnl_tc_data(TC_CAST(qdisc))) &&
fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_INTERVAL)
return fq_codel->fq_interval;
else
return 0;
}
/**
* Set quantum of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg quantum New quantum.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_quantum(struct rtnl_qdisc *qdisc, uint32_t quantum)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_quantum = quantum;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_QUANTUM;
return 0;
}
/**
* Get quantum of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric quantum or zero.
*/
uint32_t rtnl_qdisc_fq_codel_get_quantum(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if ((fq_codel = rtnl_tc_data(TC_CAST(qdisc))) &&
(fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_QUANTUM))
return fq_codel->fq_quantum;
else
return 0;
}
/**
* Set flows of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg flows New flows value.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_flows(struct rtnl_qdisc *qdisc, int flows)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_flows = flows;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_FLOWS;
return 0;
}
/**
* Get flows of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric flows or a negative error code.
*/
int rtnl_qdisc_fq_codel_get_flows(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_FLOWS)
return fq_codel->fq_flows;
else
return -NLE_NOATTR;
}
/**
* Set ecn of fq_codel qdisc.
* @arg qdisc fq_codel qdisc to be modified.
* @arg ecn New ecn value.
* @return 0 on success or a negative error code.
*/
int rtnl_qdisc_fq_codel_set_ecn(struct rtnl_qdisc *qdisc, int ecn)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
fq_codel->fq_ecn = ecn;
fq_codel->fq_mask |= SCH_FQ_CODEL_ATTR_ECN;
return 0;
}
/**
* Get ecn of a fq_codel qdisc.
* @arg qdisc fq_codel qdisc.
* @return Numeric ecn or a negative error code.
*/
int rtnl_qdisc_fq_codel_get_ecn(struct rtnl_qdisc *qdisc)
{
struct rtnl_fq_codel *fq_codel;
if (!(fq_codel = rtnl_tc_data(TC_CAST(qdisc))))
return -NLE_NOMEM;
if (fq_codel->fq_mask & SCH_FQ_CODEL_ATTR_ECN)
return fq_codel->fq_ecn;
else
return -NLE_NOATTR;
}
/** @} */
static struct rtnl_tc_ops fq_codel_ops = {
.to_kind = "fq_codel",
.to_type = RTNL_TC_TYPE_QDISC,
.to_size = sizeof(struct rtnl_fq_codel),
.to_msg_parser = fq_codel_msg_parser,
.to_dump[NL_DUMP_LINE] = fq_codel_dump_line,
.to_msg_fill = fq_codel_msg_fill,
};
static void __init fq_codel_init(void)
{
rtnl_tc_register(&fq_codel_ops);
}
static void __exit fq_codel_exit(void)
{
rtnl_tc_unregister(&fq_codel_ops);
}
/** @} */
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