> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/man4/cxgb.4.md). # cxgb.4 `cxgb` — Chelsio T3 10 千兆以太网适配器驱动 ## 名称 `cxgb` ## 概要 `若要将此驱动编译进内核，请在内核配置文件中加入以下行：` > device firmware device cxgb `若要在引导时以模块方式加载此驱动，请在 loader.conf(5) 中加入以下行：` ```sh if_cxgb_load="YES" ``` ## 描述 `cxgb` 驱动支持发送/接收校验和卸载、Jumbo 帧、TCP 分段卸载（TSO）、大接收卸载（LRO）、VLAN 硬件插入/提取以及 VLAN 校验和卸载。有关进一步的硬件信息，请参见 `http://www.chelsio.com/`。 有关硬件要求的问题，请参阅 Chelsio T3 适配器附带的文档。所有列出的硬件要求均适用于 FreeBSD。 通过接口 MTU 设置提供对 Jumbo 帧的支持。使用 [ifconfig(8)](/man/man8/ifconfig.8.md) 工具选择大于 1500 字节的 MTU 可将适配器配置为接收和发送 Jumbo 帧。Jumbo 帧的最大 MTU 为 9000。 有关配置此设备的更多信息，请参见 [ifconfig(8)](/man/man8/ifconfig.8.md)。 ## 硬件 `cxgb` 驱动支持基于 T3 和 T3B 芯片组的 10 千兆和 1 千兆以太网适配器： * Chelsio 10GBase-CX4 * Chelsio 10GBase-LR * Chelsio 10GBase-SR ## LOADER 可调参数 可在引导内核前于 [loader(8)](/man/man8/loader.8.md) 提示符处设置可调参数，或将其存储在 loader.conf(5) 中。 ## 诊断 * cxgb%d: Unable to allocate bus resource: memory 发生了致命的初始化错误。 * cxgb%d: Unable to allocate bus resource: interrupt 发生了致命的初始化错误。 * cxgb%d: Could not find firmware image %s 未安装相应的固件 kld 模块。这是致命的初始化错误。 ## 支持 有关一般信息和支持，请访问 Chelsio 支持网站：`http://www.chelsio.com/`。 如果在使用受支持内核和受支持适配器时发现已发布源代码的问题，请将与该问题相关的具体信息通过电子邮件发送至 。 ## 参见 [altq(4)](https://github.com/FreeBSD-Ask/freebsd-man-sc/blob/main/man4/altq.4.md), arp(4), [netintro(4)](/man/man4/netintro.4.md), [ng\_ether(4)](/man/man4/ng_ether.4.md), [ifconfig(8)](/man/man8/ifconfig.8.md) ## 历史 `cxgb` 设备驱动首次出现于 FreeBSD 6.3 和 FreeBSD 7.0。 ## 作者 `cxgb` 驱动由 Kip Macy 编写，Scott Long 提供了大量支持。 --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://book.bsdcn.org/man/man4/cxgb.4.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.