t4_fw_upgrade(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 NAME 🌸

t4_fw_upgrade — perform all of the steps necessary to upgrade FW 💅✨

This is the t4_fw_upgrade(9) page from the Kernel API Manual, bestie 🫶

✨ SYNOPSIS ✨

int t4_fw_upgrade (struct adapter *adap , unsigned int mbox , const u8
*fw_data , unsigned int size , int force );

🎀 ARGUMENTS 🎀

  • adap — the adapter 🫶
  • mbox — mailbox to use for the FW RESET command (if desired) 💌
  • fw_data — the firmware image to write 🖊️
  • size — image size 📏
  • force — force upgrade even if firmware doesn't cooperate 😤

💖 DESCRIPTION 💖

okay so this function does literally all of the steps necessary for upgrading an adapter's firmware image 🦋✨ Normally this requires the cooperation of the existing firmware in order to halt all existing activities, but if an invalid mailbox token is passed in, we skip that step — though we'll still put the adapter microprocessor into RESET in that case 💅

On successful return, the new firmware will have been loaded and the adapter will have been fully RESET, losing all previous setup state 😭 On unsuccessful return, the adapter may be completely hosed ... positive errno indicates that the adapter is ~probably~ intact, a negative errno indicates that things are looking bad ... 💀

⚠️ bestie, this is the risky part: unsuccessful return can leave the adapter completely hosed, and the sign of errno is the vibe check — positive errno = ~probably~ intact, negative errno = things are looking bad ... 😭

🔥 SEE ALSO 🔥

The kernel file is ./drivers/net/ethernet/chelsio/cxgb4/t4_hw.c 🌸 and these are the related pages, fr fr:

and that's the whole page, bestie 🫶 source: ./drivers/net/ethernet/chelsio... · date: October 2026 · manual: t4_fw_upgrade(9) 💅✨

📦 where this page comes from