rte_tm_shaper_params
Contents
Detailed Description
Shaper (rate limiter) profile
Multiple shaper instances can share the same shaper profile. Each node has zero or one private shaper
(only one node using it) and/or zero, one or several shared shapers (multiple nodes use the same shaper
instance). A private shaper is used to perform traffic shaping for a single node, while a shared shaper
is used to perform traffic shaping for a group of nodes.
Single rate shapers use a single token bucket. A single rate shaper can be configured by setting the rate
of the committed bucket to zero, which effectively disables this bucket. The peak bucket is used to limit
the rate and the burst size for the current shaper.
Dual rate shapers use both the committed and the peak token buckets. The rate of the peak bucket has to
be bigger than zero, as well as greater than or equal to the rate of the committed bucket.
Seealso
struct rte_tm_capabilities::shaper_private_packet_mode_supported
struct rte_tm_capabilities::shaper_private_byte_mode_supported
struct rte_tm_capabilities::shaper_shared_packet_mode_supported
struct rte_tm_capabilities::shaper_shared_byte_mode_supported
Definition at line 1039 of file rte_tm.h.
Field Documentation
structrte_tm_token_bucketcommitted
Committed token bucket
Definition at line 1041 of file rte_tm.h.
structrte_tm_token_bucketpeak
Peak token bucket
Definition at line 1044 of file rte_tm.h.
int32_tpkt_length_adjust
Signed value to be added to the length of each packet for the purpose of shaping. Can be used to correct
the packet length with the framing overhead bytes that are also consumed on the wire (e.g.
RTE_TM_ETH_FRAMING_OVERHEAD_FCS). This field is ignored when the profile enables packet mode.
Definition at line 1052 of file rte_tm.h.
intpacket_mode
When zero, the byte mode is enabled for the current profile, so the rate and size fields in both the
committed and peak token buckets are specified in bytes per second and bytes, respectively. When non-
zero, the packet mode is enabled for the current profile, so the rate and size fields in both the
committed and peak token buckets are specified in packets per second and packets, respectively.
Definition at line 1062 of file rte_tm.h.
Name
rte_tm_shaper_params
Synopsis
#include <rte_tm.h>
DataFields
struct rte_tm_token_bucketcommitted
struct rte_tm_token_bucketpeak
int32_t pkt_length_adjust
int packet_mode