STRUCT DFL_AFU(9)

struct dfl_afu(9)

okay so this is the Kernel API Manual entry for struct dfl_afu, and it's literally the afu device data structure 💖 no cap, we're covering every single member, so stay with me bestie.

✨ NAME ✨

struct dfl_afu — afu device data structure.

🎀 SYNOPSIS 🎀

struct dfl_afu {
    u64 region_cur_offset;
    int num_regions;
    u8 num_umsgs;
    struct list_head regions;
    struct rb_root dma_regions;
 };

💅 Members 💅

• region_cur_offset — current region offset from start to the device fd.
• num_regions — num of mmio regions.
• num_umsgs — num of umsgs.
• regions — the mmio region linked list of this afu feature device.
• dma_regions — root of dma regions rb tree.

🦋 SEE ALSO 🦋

Kernel file ./drivers/fpga/dfl-afu.h, plus struct dfl_afu_mmio_region(9) and struct dfl_afu_dma_region(9).

source/version: ./drivers/fpga · date: October 2026 — that's the whole vibe, bye bestie 🫶💜