rte_tm_wred_params(3)

💖 rte_tm_wred_params 💖

okay bestie, gather round, because we're doing a struct today and honestly? it's giving congestion-management icon. this is from the DPDK library functions manual, and it's literally called rte_tm_wred_params. yes it comes from rte_tm.h, yes you're gonna need it if you're messing with traffic management, no you cannot skip it. let's go 🦋

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✨ NAME ✨

rte_tm_wred_params — the struct that holds your Weighted RED (WRED) profile, periodt 💅

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🌸 SYNOPSIS 🌸

#include <rte_tm.h>

🎀 Data Fields

• struct rte_tm_red_params red_params [RTE_COLORS]
• int packet_mode

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👑 DESCRIPTION 👑

so this whole thing is the Weighted RED (WRED) profile, and here's the tea:

multiple WRED contexts can share the same WRED profile. no gatekeeping, they just share. 🔥

every leaf node that has WRED enabled as its congestion management mode has zero or one private WRED context (aka only one leaf node using it) and/or zero, one or several shared WRED contexts (aka multiple leaf nodes use the same WRED context).

• a private WRED context does congestion management for a single leaf node, just the one, main character behavior honestly
• a shared WRED context does congestion management for a whole group of leaf nodes, very group-chat of it 🫶

🧚 See also

• struct rte_tm_capabilities::cman_wred_packet_mode_supported
• struct rte_tm_capabilities::cman_wred_byte_mode_supported

lowkey important note: this is defined at line 994 of file rte_tm.h. remember that, it might come up. ✨

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💜 FIELD DOCUMENTATION 💜

🌈 struct rte_tm_red_params red_params[RTE_COLORS]

one set of RED parameters per packet color. that's it, that's the whole vibe — one per color. 🎨

defined at line 996 of file rte_tm.h

⭐ int packet_mode

okay so this one is a little switch and it changes everything about how your thresholds are counted, so pay attention bestie 😭

• when packet_mode is non-zero, the min_th and max_th thresholds are specified in packets — that's WRED packet mode
• when packet_mode is zero, the min_th and max_th thresholds are specified in bytes — that's WRED byte mode

no in-between, no "oh it's probably fine", it's literally just which unit your thresholds are living in. pick wisely. 💀

defined at line 1002 of file rte_tm.h

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🦋 AUTHOR 🦋

generated automatically by Doxygen for DPDK from the source code. yes, a robot wrote this, and the robot ate. 🤖✨

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alright that's the whole page, you're officially educated on rte_tm_wred_params and i'm so proud of you 💖 this was DPDK, Version 25.11.3, and you read the whole thing which is honestly iconic of you. go forth and configure your thresholds correctly, bestie. not me being obsessed with a WRED profile. 🎀🌈

slay 💅