i40iw_open(9)

okay so bestie, we're looking at i40iw_open(9) from the Kernel API Manual — literally the client interface operation open for iwarp/uda device. Buckle up, it's giving kernel-client registration energy. 💅✨

🌸 NAME 🌸

i40iw_open — client interface operation open for iwarp/uda device 🦋

✨ SYNOPSIS ✨

ok so the signature is exactly this, no cap:

       int i40iw_open (struct i40e_info *cdev_info , struct i40e_client *client
       );

🫶 ARGUMENTS 🫶

• cdev_info — parent lan device information structure with data/ops 😭 that's the parent LAN device info structure, and it's carrying the data/ops.
• client — iwarp client information, provided during registration 🎀 the iwarp client info that gets handed over during registration.

👑 DESCRIPTION 👑

Called by the lan driver during the processing of client register. Fr fr, what happens next is: create device resources, set up queues, pble and hmc objects and register the device with the ib verbs interface. That's a whole lot of kernel setup, and the description is just laying it out. 🔥

Return 0 if successful, otherwise return error. That's the mood: success = 0, anything else = error. 😭

🦋 SEE ALSO 🦋

• Kernel file ./drivers/infiniband/hw/irdma/i40iw_if.c 📁
• i40iw_l2param_change(9)
• i40iw_close(9)

xoxo bestie 💖 this page comes from source/version ./drivers/infiniband/hw/irdma, dated October 2026, and the footer still says i40iw_open(9) — periodt. 🎀