Attribute Access
void	rtnl_qdisc_tbf_set_limit (struct rtnl_qdisc *qdisc, int limit)
	Set limit of TBF qdisc. More...

int	rtnl_qdisc_tbf_set_limit_by_latency (struct rtnl_qdisc *qdisc, int latency)
	Set limit of TBF qdisc by latency. More...

int	rtnl_qdisc_tbf_get_limit (struct rtnl_qdisc *qdisc)
	Get limit of TBF qdisc. More...

void	rtnl_qdisc_tbf_set_rate (struct rtnl_qdisc *qdisc, int rate, int bucket, int cell)
	Set rate of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_rate (struct rtnl_qdisc *qdisc)
	Get rate of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_rate_bucket (struct rtnl_qdisc *qdisc)
	Get rate bucket size of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_rate_cell (struct rtnl_qdisc *qdisc)
	Get rate cell size of TBF qdisc. More...

int	rtnl_qdisc_tbf_set_peakrate (struct rtnl_qdisc *qdisc, int rate, int bucket, int cell)
	Set peak rate of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_peakrate (struct rtnl_qdisc *qdisc)
	Get peak rate of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_peakrate_bucket (struct rtnl_qdisc *qdisc)
	Get peak rate bucket size of TBF qdisc. More...

int	rtnl_qdisc_tbf_get_peakrate_cell (struct rtnl_qdisc *qdisc)
	Get peak rate cell size of TBF qdisc. More...

Detailed Description

Function Documentation

void rtnl_qdisc_tbf_set_limit	(	struct rtnl_qdisc *	qdisc,
		int	limit
	)

Set limit of TBF qdisc.

Parameters

qdisc	TBF qdisc to be modified.
limit	New limit in bytes.

Returns: 0 on success or a negative error code.

Definition at line 178 of file tbf.c.

References rtnl_tc_data(), and TC_CAST.

Referenced by rtnl_qdisc_tbf_set_limit_by_latency().

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int rtnl_qdisc_tbf_set_limit_by_latency	(	struct rtnl_qdisc *	qdisc,
		int	latency
	)

Set limit of TBF qdisc by latency.

Parameters

qdisc	TBF qdisc to be modified.
latency	Latency in micro seconds.

Calculates and sets the limit based on the desired latency and the configured rate and peak rate. In order for this operation to succeed, the rate and if required the peak rate must have been set in advance.

$limit_n = \frac{{rate_n} \times {latency}}{10^6}+{bucketsize}_n$

$limit = min(limit_{rate},limit_{peak})$

Returns: 0 on success or a negative error code.

Definition at line 218 of file tbf.c.

References rtnl_qdisc_tbf_set_limit(), rtnl_tc_data(), and TC_CAST.

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int rtnl_qdisc_tbf_get_limit ( struct rtnl_qdisc * qdisc )

Get limit of TBF qdisc.

Parameters

qdisc TBF qdisc.

Returns: Limit in bytes or a negative error code.

Definition at line 249 of file tbf.c.

References rtnl_tc_data(), and TC_CAST.

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void rtnl_qdisc_tbf_set_rate	(	struct rtnl_qdisc *	qdisc,
		int	rate,
		int	bucket,
		int	cell
	)

Set rate of TBF qdisc.

Parameters

qdisc	TBF qdisc to be modified.
rate	New rate in bytes per second.
bucket	Size of bucket in bytes.
cell	Size of a rate cell or 0 to get default value.

Returns: 0 on success or a negative error code.

Definition at line 276 of file tbf.c.

References nl_us2ticks(), rtnl_tc_calc_cell_log(), rtnl_tc_calc_txtime(), rtnl_tc_data(), and TC_CAST.

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int rtnl_qdisc_tbf_get_rate ( struct rtnl_qdisc * qdisc )

Get rate of TBF qdisc.

Parameters

qdisc TBF qdisc.

Returns: Rate in bytes per seconds or a negative error code.

Definition at line 302 of file tbf.c.

References rtnl_tc_data(), and TC_CAST.

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int rtnl_qdisc_tbf_get_rate_bucket ( struct rtnl_qdisc * qdisc )

Get rate bucket size of TBF qdisc.

Parameters

qdisc TBF qdisc.

Returns: Size of rate bucket or a negative error code.

Definition at line 320 of file tbf.c.

References rtnl_tc_data(), and TC_CAST.

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int rtnl_qdisc_tbf_get_rate_cell ( struct rtnl_qdisc * qdisc )

Get rate cell size of TBF qdisc.

Parameters

qdisc TBF qdisc.

Returns: Size of rate cell in bytes or a negative error code.

Definition at line 338 of file tbf.c.

References rtnl_tc_data(), and TC_CAST.

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int rtnl_qdisc_tbf_set_peakrate	(	struct rtnl_qdisc *	qdisc,
		int	rate,
		int	bucket,
		int	cell
	)

Set peak rate of TBF qdisc.

Parameters

qdisc	TBF qdisc to be modified.
rate	New peak rate in bytes per second.
bucket	Size of peakrate bucket.
cell	Size of a peakrate cell or 0 to get default value.