Intel QuickAssist DH895xCC cryptographic accelerator
A PCIe cryptographic and compression accelerator card that Intel shipped as the QuickAssist Adapter 8950/8955 generation in the mid-2010s, used in servers and network appliances to offload bulk SSL/TLS, IPsec, and compression workloads from the CPU.
recommendation
Worth keeping but flagging as legacy hardware. Intel formally discontinued the 8950/8960 adapter generation in August 2020 and steered new deployments toward later QAT parts like the 8970 and the qat_4xxx-driven Gen4 silicon, but DH895xCC is still receiving real bug fixes upstream (a shutdown-handler fix landed in March 2025 and was backported to stable in July 2025), so the installed base clearly still matters. A note that this targets end-of-life hardware would help future readers without justifying removal today.
repository signals
sources
- spinics.net
March 26, 2025 upstream patch traffic touched this driver with a functional fix ('add shutdown handler to qat_dh895xcc'), indicating active maintenance rather than removal.
- spinics.net
The same qat_dh895xcc shutdown fix was backported to stable in July 2025, showing the hardware still matters enough for supported deployed systems.
- intel.com
Intel published a product discontinuance / end-of-life notice for the QuickAssist Adapter 8950/8960 dated August 5, 2020, so this generation is not a current new-sales product.
- intel.com
Intel still lists newer add-in-card QAT hardware (Adapter 8970), supporting the view that new deployments moved to later generations rather than DH895xCC.
codex reasoning notes (technical)
Local evidence from exec_command: this directory is a real PCI driver (adf_drv.c binds PCI_DEVICE_ID_INTEL_QAT_DH895XCC; Kconfig names Intel QuickAssist DH895xCC) and git -c safe.directory log shows substantive touches through 2025-05-05, so it is not dormant. Upstream-history evidence was obtained via web search because lore MCP was unavailable and lei was not installed; spinics result https://www.spinics.net/lists/linux-crypto/msg86866.html shows 2025 functional maintenance, and stable-commits https://www.spinics.net/lists/stable-commits/msg424941.html shows downstream backporting, with no removal discussion found in the searched results. Deployment evidence came from web open/search on Intel pages: the Intel EOL notice URL above was opened directly and is dated 2020-08-05, while the 8970 specs page came from web search as a newer same-class QAT adapter. Conclusion: legacy but still maintained for installed base; annotate as old/EOL hardware rather than deprecate or remove.