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doca-pcc-ztr-rttcc-algo

DOCA-shipped Zero-Touch RoCE RTT congestion control (ZTR RTTCC) reference algorithm on a BlueField-3 DPA: deploy, tune and evaluate…

Skill by NVIDIA <doca@nvidia.com>

IndexedApache-2.0★ 3,718
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Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

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About

DOCA-shipped Zero-Touch RoCE RTT congestion control (ZTR RTTCC) reference algorithm on a BlueField-3 DPA: deploy, tune and evaluate doca_pcc_dev_ztr_rttcc_algo through the shipped DOCA PCC sample. Trigger on "my RoCE-v2 flows aren't being throttled", "PCC sample isn't dispatching to my algo", "set-params returns fail", "algorithm loaded but counters are flat", "how do I pick the multipath PCC variant", or "do I need a custom CC algorithm on BF3", even without naming ZTR RTTCC. Your own algorithm through the host library belongs to doca-pcc; the doca_spcx_cc command line to doca-spcx-cc. Covers picking a variant (vanilla / PM / RX-rate / multipath / window-probeless) at DPACC build time, tuning host-set parameters, and DOCA_PCC_DEV_STATUS_FAIL from the algorithm. Refuse and route elsewhere for writing a custom PCC algorithm from scratch, read-only PCC counter inspection, or firmware-only pre-Programmable PCC.

Use cases: devops, writing

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What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
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Secrets
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Install scripts
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Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/doca-pcc-ztr-rttcc-algo

What's inside

Skill name
doca-pcc-ztr-rttcc-algo
Description
DOCA-shipped Zero-Touch RoCE RTT congestion control (ZTR RTTCC) reference algorithm on a BlueField-3 DPA: deploy, tune and evaluate doca_pcc_dev_ztr_rttcc_algo through the shipped DOCA PCC sample. Trigger on "my RoCE-v2 flows aren't being throttled", "PCC sample isn't dispatching to my algo", "set-params returns fail", "algorithm loaded but counters are flat", "how do I pick the multipath PCC variant", or "do I need a custom CC algorithm on BF3", even without naming ZTR RTTCC. Your own algorithm through the host library belongs to doca-pcc; the doca_spcx_cc command line to doca-spcx-cc. Covers picking a variant (vanilla / PM / RX-rate / multipath / window-probeless) at DPACC build time, tuning host-set parameters, and DOCA_PCC_DEV_STATUS_FAIL from the algorithm. Refuse and route elsewhere for writing a custom PCC algorithm from scratch, read-only PCC counter inspection, or firmware-only pre-Programmable PCC.
License
Apache-2.0
Compatibility
Requires DOCA SDK installed at /opt/mellanox/doca on Linux (Ubuntu 22.04/24.04 or RHEL/SLES) with a BlueField-3 DPU exposing the DPA processor, the firmware custom-PCC slot enabled, a matched-version DPACC compiler, and live RoCE-v2 traffic on the attached port. Reads `pkg-config doca-pcc-ztr-rttcc-algo` and inspects /opt/mellanox/doca/{lib,include,applications/pcc}. The validation steps require a live DOCA install.
Metadata
kind: library · author: NVIDIA <doca@nvidia.com> · doca_version: 3.5
Instructions
339 lines in SKILL.md · view on GitHub

Files (8)

  • BENCHMARK.md
  • CAPABILITIES.md
  • SKILL.md
  • SKILLCARD.yaml
  • TASKS.md
  • evals.json · evals/
  • skill-card.md
  • skill.oms.sig

Read SKILL.md on GitHub

More from NVIDIA/skills

Signals

Stars
3,718
Forks
457
Open issues
8
Last commit (this folder)
Oct 22, 2026 (12 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
Apache-2.0
Repository
github.com/NVIDIA/skills
Website
docs.nvidia.com/skills
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql

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doca-pcc-ztr-rttcc-algo skill. Agent Mart. https://agentmart.dev/skills/nvidia-doca-pcc-ztr-rttcc-algo (last updated 2026-10-24)