ocxl_function_config(9)

💅 ocxl_function_config — bestie's guide to the OpenCAPI function config ✨

okay so this is a page from the Kernel API Manual (section 9, kernel-space vibes only 🎀) and it's literally just one little getter. short queen. iconic behavior.

---

🌸 NAME 🌸

ocxl_function_config — get the configuration information for an OpenCAPI function. that's it. that's the whole job. she's a look-up, not a glow-up 💅

---

✨ SYNOPSIS ✨

const struct ocxl_fn_config * ocxl_function_config (struct ocxl_fn *fn );

yes the return type is const struct ocxl_fn_config * — read-only, hands off, no take-backsies 🫶

---

🎀 ARGUMENTS 🎀

• fn — the OpenCAPI function you want the config for. like, the actual function object. you gotta hand her the function, she's not gonna go find it herself 💀

---

🦋 DESCRIPTION 🦋

Returns the function config, or NULL on error.

that's the whole thing bestie. she gives you back the config, and if something went sideways you get NULL back instead — so like, always check for NULL, no cap, that's the vibe check 🙈 NULL means error, and error means it's not your day.

---

🔥 SEE ALSO 🔥

the whole girl squad, in order, no one left out 👑 also peep the kernel file: ./include/misc/ocxl.h in the Kernel sources 📁

• ocxl_function_open(9)
• ocxl_function_afu_list(9)
• ocxl_function_fetch_afu(9)
• ocxl_afu_get(9)
• ocxl_afu_put(9)
• ocxl_function_close(9)
• ocxl_context_alloc(9)
• ocxl_context_free(9)
• ocxl_context_attach(9)
• ocxl_context_detach(9)
• ocxl_afu_irq_alloc(9)
• ocxl_afu_irq_free(9)
• ocxl_afu_irq_get_addr(9)
• ocxl_irq_set_handler(9)
• ocxl_afu_config(9)
• ocxl_afu_set_private(9)
• ocxl_afu_get_private(9)
• ocxl_global_mmio_read32(9)
• ocxl_global_mmio_read64(9)
• ocxl_global_mmio_write32(9)
• ocxl_global_mmio_write64(9)
• ocxl_global_mmio_set32(9)
• ocxl_global_mmio_set64(9)
• ocxl_global_mmio_clear32(9)
• ocxl_global_mmio_clear64(9)

---

💀 reminder: NULL on error is a real return value, not a personality trait. check it. every time. periodt.

---

kisses bestie, go read your configs 💖 this page came from the ./include/misc source, dated October 2026, and it's ocxl_function_config(9) — that's the whole footer, mwah 🎀✨🦋