MYX(4)

💖 NAME 💖

okay bestie, welcome to the MYX(4) page in the Kernel Interfaces Manual! this is all about myx — the Myricom Myri-10G PCI Express 10Gb Ethernet device. iconic networking hardware, no cap 💅

🌸 SYNOPSIS 🌸

myx* at pci?

🦋 DESCRIPTION 🦋

okay so the myx driver supports the Myricom Myri-10G PCI Express 10Gb Ethernet adapters based on the Myricom Lanai-Z8E and Lanai-Z8ES chipsets, including the following besties:

• Myricom 10G-PCIE-8A-C Adapter (10GbaseCX4)
• Myricom 10G-PCIE-8A-R Adapter (10GbaseSR/LR)
• Myricom 10G-PCIE-8A-Q Adapter (10G XAUI)
• Myricom 10G-PCIE2-8B2-2S Adapter (10GbaseSR/LR)
• Myricom 10G-PCIE2-8C2-2S Adapter (10GbaseSR/LR/LRM)

Low profile versions are supported as well, fr fr 🫶

🎀 FILES 🎀

The adapter needs a firmware file, which is selected and loaded on demand by the driver when the device is attached:

• /etc/firmware/myx-eth_z8e
• /etc/firmware/myx-ethp_z8e

🔥 SEE ALSO 🔥

• arp(4)
• ifmedia(4)
• intro(4)
• netintro(4)
• pci(4)
• hostname.if(5)
• ifconfig(8)

👑 HISTORY 👑

The myx driver first appeared in OpenBSD 4.2. vintage but still cute ✨

🫶 AUTHORS 🫶

The myx driver was written by Reyk Floeter <reyk@openbsd.org>.

💀 CAVEATS 💀

okay so this is the important part: while the firmware supports reading module information for ifconfig(8) transceiver to use, it does not support writing to the module. This prevents configuration of the module, which may prevent ifconfig(8) from reading the right data from the module where other network cards succeed. so yeah, read-only module situation — noted, bestie 😭

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okay that’s the whole MYX(4) tea, bestie — this one came from Debian, dated February 17, 2022. slay and stay safe 💅✨