STRUCT CXL_DPA_PERF(9)

🎀 NAME 🎀

okay so bestie, meet struct cxl_dpa_perf(9) — this is from the Kernel API Manual, and it is literally the DPA performance property entry. no cap, that’s the whole name vibe. 🫶

🌸 SYNOPSIS 🌸

the struct is shaped like this, exactly:

struct cxl_dpa_perf {
    struct range dpa_range;
    struct access_coordinate coord[ACCESS_COORDINATE_MAX];
    struct access_coordinate cdat_coord[ACCESS_COORDINATE_MAX];
    int qos_class;
 };

💅 Members 💅

• dpa_range — range for DPA address. iconic little boundary holder. 💖
• coord — QoS performance data (i.e. latency, bandwidth). the performance tea ☕✨
• cdat_coord — raw QoS performance data from CDAT. yes, raw, not cooked. 🍓
• qos_class — QoS Class cookies. cookies, but make it QoS. 🍪👑

🦋 SEE ALSO 🦋

go peek at these besties, iykyk:

• Kernel file ./include/cxl/cxl.h
• enum cxl_devtype(9)
• struct cxl_register_map(9)
• struct cxl_dpa_partition(9)
• struct cxl_dev_state(9)

and that’s the whole page, bestie 🎀 source/version: ./include/cxl, date: October 2026 — mwah 💋✨