STRUCT PFRT_LOG_DATA_INFO(9)

💖 struct pfrt_log_data_info(9) 💖

okay bestie so this is a page from the Kernel API Manual, section 9, and it's all about struct pfrt_log_data_info — literally just the Log Data from the telemetry service. that's it, that's the whole vibe. 🎀

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✨ NAME ✨

struct pfrt_log_data_info — Log Data from telemetry service. periodt. 💅

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🦋 SYNOPSIS 🦋

here's the struct in all its glory, copy it exactly, no cap:

struct pfrt_log_data_info {
    __u32 status;
    __u32 ext_status;
    __u64 chunk1_addr_lo;
    __u64 chunk1_addr_hi;
    __u64 chunk2_addr_lo;
    __u64 chunk2_addr_hi;
    __u32 max_data_size;
    __u32 chunk1_size;
    __u32 chunk2_size;
    __u32 rollover_cnt;
    __u32 reset_cnt;
 };

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👑 Members 👑

okay now the member-by-member breakdown, and yes we're doing all eleven, no skipping, the way that attention to detail is iconic:

• status — your little indicator of whether this update actually succeeded. vibe check for the update. ✨
• ext_status — the implementation specific update result. so like, the details are up to whoever implemented it, iykyk.
• chunk1_addr_lo — the Low 32bit physical address of the telemetry data chunk1 starting address. 🍓
• chunk1_addr_hi — the High 32bit physical address of the telemetry data chunk1 starting address. two halves, one address, we love a duo. 🫶
• chunk2_addr_lo — the Low 32bit physical address of the telemetry data chunk2 starting address. 💜
• chunk2_addr_hi — the High 32bit physical address of the telemetry data chunk2 starting address. matching set fr fr. 🌸
• max_data_size — the Maximum supported size of data of all data chunks combined. as in, everything together, the whole squad. 🔥
• chunk1_size — Data size in bytes of the telemetry data chunk1 buffer. bytes, bestie, bytes. 📏
• chunk2_size — Data size in bytes of the telemetry data chunk2 buffer. same energy, different chunk. 🧚
• rollover_cnt — Number of times telemetry data buffer is overwritten since telemetry buffer reset. it's counting the overwrites. lowkey dramatic. 😭
• reset_cnt — Number of times telemetry services resets that results in rollover count and data chunk buffers are reset. so a reset here wipes the rollover count and the chunk buffers, that's the whole deal. 💀

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🌈 SEE ALSO 🌈

go read these next, bestie, they're literally all connected — Kernel file ./include/uapi/linux/pfrut.h:

• PFRU_IOC_SET_REV(9)
• PFRU_IOC_STAGE(9)
• PFRU_IOC_ACTIVATE(9)
• PFRU_IOC_STAGE_ACTIVATE(9)
• PFRU_IOC_QUERY_CAP(9)
• struct pfru_payload_hdr(9)
• struct pfru_update_cap_info(9)
• struct pfru_com_buf_info(9)
• struct pfru_updated_result(9)
• struct pfrt_log_info(9)
• PFRT_LOG_IOC_SET_INFO(9)
• PFRT_LOG_IOC_GET_INFO(9)
• PFRT_LOG_IOC_GET_DATA_INFO(9)

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and that's the whole page, bestie 🫶 sign-off time: this one lives over in ./include/uapi/linux, dated October 2026, and it's filed under struct pfrt_log_data_info(9). slay. 💖✨