STRUCT UACCE_OPS(9)

NAME 🎀

struct uacce_ops — uacce device operations. Okay so this is struct uacce_ops(9), straight out of the Kernel API Manual, bestie. It's giving the ops struct for a uacce device, and we are going to go through every single member like the responsible Unix girlies we are. 💅

SYNOPSIS ✨

Here's the struct in all its glory — literally, no edits, no cap:

       struct uacce_ops {
           int (*get_available_instances)(struct uacce_device *uacce);
           int (*get_queue)(struct uacce_device *uacce, unsigned long arg,
       struct uacce_queue *q);
           void (*put_queue)(struct uacce_queue *q);
           int (*start_queue)(struct uacce_queue *q);
           void (*stop_queue)(struct uacce_queue *q);
           int (*is_q_updated)(struct uacce_queue *q);
           int (*mmap)(struct uacce_queue *q, struct vm_area_struct *vma,
       struct uacce_qfile_region *qfr);
           long (*ioctl)(struct uacce_queue *q, unsigned int cmd, unsigned long
       arg);
           enum uacce_dev_state (*get_isolate_state)(struct uacce_device
       *uacce);
           int (*isolate_err_threshold_write)(struct uacce_device *uacce, u32
       num);
           u32 (*isolate_err_threshold_read)(struct uacce_device *uacce);
        };

Members 💖

Member-by-member, because every single one matters:

• get_available_instances — gets the available instances left of the device. ✨
• get_queue — gets a queue from the device. 🎀
• put_queue — frees a queue to the device. 🦋
• start_queue — makes the queue start work after get_queue. 🌸
• stop_queue — makes the queue stop work before put_queue. 💅
• is_q_updated — checks whether the task is finished. ⭐
• mmap — mmaps addresses of the queue to user space. 🫶
• ioctl — does ioctl for user space users of the queue. 🔥
• get_isolate_state — gets the device state after the isolate strategy is set. 👑
• isolate_err_threshold_write — stores the isolate error threshold to the device. 🌈
• isolate_err_threshold_read — reads the isolate error threshold value from the device. 💜

SEE ALSO 🦋

Kernel file ./include/linux/uacce.h is the spot, and then go say hi to struct uacce_qfile_region(9), struct uacce_interface(9), struct uacce_queue(9), and struct uacce_device(9). Iykyk. 🧚

Signed, sealed, slayed: source/version ./include/linux, date October 2026, and this page is struct uacce_ops(9). Mwah 💋✨