(Fast) Prio

Collaboration diagram for (Fast) Prio:

Default Values
#define	QDISC_PRIO_DEFAULT_BANDS   3
	Default number of bands. More...
#define	QDISC_PRIO_DEFAULT_PRIOMAP   { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }
	Default priority mapping. More...

Attribute Modification
int	rtnl_qdisc_prio_set_bands (struct rtnl_qdisc *qdisc, int bands)
	Set number of bands of PRIO qdisc. More...
int	rtnl_qdisc_prio_get_bands (struct rtnl_qdisc *qdisc)
	Get number of bands of PRIO qdisc. More...
int	rtnl_qdisc_prio_set_priomap (struct rtnl_qdisc *qdisc, uint8_t priomap[], int len)
	Set priomap of the PRIO qdisc. More...
uint8_t *	rtnl_qdisc_prio_get_priomap (struct rtnl_qdisc *qdisc)
	Get priomap of a PRIO qdisc. More...

Priority Band Translations
char *	rtnl_prio2str (int prio, char *buf, size_t size)
	Convert priority to character string. More...
int	rtnl_str2prio (const char *name)
	Convert character string to priority. More...

Detailed Description

1) Typical PRIO configuration

// Specify the maximal number of bands to be used for this PRIO qdisc.
rtnl_qdisc_prio_set_bands(qdisc, QDISC_PRIO_DEFAULT_BANDS);

// Provide a map assigning each priority to a band number.
uint8_t map[] = QDISC_PRIO_DEFAULT_PRIOMAP;
rtnl_qdisc_prio_set_priomap(qdisc, map, sizeof(map));

Macro Definition Documentation

#define QDISC_PRIO_DEFAULT_BANDS   3

Default number of bands.

#define QDISC_PRIO_DEFAULT_PRIOMAP   { 1, 2, 2, 2, 1, 2, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1 }

Default priority mapping.

Function Documentation

char* rtnl_prio2str	(	int	prio,
		char *	buf,
		size_t	size
	)

Convert priority to character string.

• prio Priority.
• buf Destination buffer
• size Size of destination buffer.

Converts a priority to a character string and stores the result in the specified destination buffer.

Returns

Name of priority as character string.

References __type2str(), and ARRAY_SIZE.

Here is the call graph for this function:

int rtnl_qdisc_prio_get_bands

(

struct rtnl_qdisc *

qdisc

)

Get number of bands of PRIO qdisc.

• qdisc PRIO qdisc.

  Returns

  Number of bands or a negative error code.

References NLE_NOMEM, rtnl_prio::qp_bands, and rtnl_prio::qp_mask.

uint8_t* rtnl_qdisc_prio_get_priomap

(

struct rtnl_qdisc *

qdisc

)

Get priomap of a PRIO qdisc.

• qdisc PRIO qdisc.

  Returns

  Priority mapping as array of size TC_PRIO_MAX+1 or NULL if an error occured.

References NULL, rtnl_prio::qp_mask, and rtnl_prio::qp_priomap.

int rtnl_qdisc_prio_set_bands	(	struct rtnl_qdisc *	qdisc,
		int	bands
	)

Set number of bands of PRIO qdisc.

• qdisc PRIO qdisc to be modified.
• bands New number of bands.

  Returns

  0 on success or a negative error code.

References NLE_NOMEM, rtnl_prio::qp_bands, and rtnl_prio::qp_mask.

int rtnl_qdisc_prio_set_priomap	(	struct rtnl_qdisc *	qdisc,
		uint8_t	priomap[],
		int	len
	)

Set priomap of the PRIO qdisc.

• qdisc PRIO qdisc to be modified.
• priomap New priority mapping.
• len Length of priomap (# of elements).

  Returns

  0 on success or a negative error code.

References NLE_MISSING_ATTR, NLE_NOMEM, NLE_RANGE, rtnl_prio::qp_bands, rtnl_prio::qp_mask, rtnl_prio::qp_priomap, and TC_PRIO_MAX.

int rtnl_str2prio

(

const char *

name

)

Convert character string to priority.

• name Name of priority.

Converts the provided character string specifying a priority to the corresponding numeric value.

Returns

Numeric priority or a negative value if no match was found.

References __str2type(), and ARRAY_SIZE.

Here is the call graph for this function: