ENUM HL_QUEUE_TYPE(9)

💖 enum hl_queue_type(9) 💖

okay bestie, welcome to the Kernel API Manual side of the group chat 🫶. This is all about the enum hl_queue_type(9) situation, and it’s giving “queue lore, but make it crystal clear” ✨.

💅 NAME 💅

enum hl_queue_type — Supported QUEUE types. yes bestie, that’s the whole name, and it ate 💅.

✨ SYNOPSIS ✨

okay so the enum is literally this, copy-paste safe, no cap:

enum hl_queue_type {
           QUEUE_TYPE_NA ,
           QUEUE_TYPE_EXT ,
           QUEUE_TYPE_INT ,
           QUEUE_TYPE_CPU ,
           QUEUE_TYPE_HW

       };

🧸 Constants 🧸

• QUEUE_TYPE_NA — this queue is not available. it’s not showing up to the function, it’s not in the group chat, it’s just NA 😭.
• QUEUE_TYPE_EXT — an external queue which is a DMA channel that may access the host. external-queue main character energy, but make it DMA 🔥.
• QUEUE_TYPE_INT — an internal queue that performs DMA inside the device's memories and/or operates the compute engines. internal queen behavior, doing DMA in the device’s memories and/or running the compute engines 💅.
• QUEUE_TYPE_CPU — an S/W queue for communication with the device's CPU. software queue bestie, here for device-CPU communication 🫶.
• QUEUE_TYPE_HW — a queue of DMA and compute engines jobs, for which completion notifications are sent by H/W. hardware said “I’ll send the completion notifications, don’t worry” ⭐.

🌈 SEE ALSO 🌈

Kernel file: ./drivers/accel/habanalabs/common/habanalabs.h

and here’s the whole cross-ref bestie squad, exactly as it comes 👑:

enum hl_mmu_page_table_location(9), struct iterate_module_ctx(9), struct hl_gen_wait_properties(9), struct pgt_info(9), enum hl_pci_match_mode(9), enum hl_fw_component(9), enum hl_fw_types(9), struct hw_queue_properties(9), enum vm_type(9), enum mmu_op_flags(9), enum hl_device_hw_state(9), struct hl_mmu_properties(9), struct hl_hints_range(9), struct asic_fixed_properties(9), struct hl_fence(9), struct hl_cs_compl(9), struct hl_ts_buff(9), struct hl_mem_mgr(9), struct hl_mem_mgr_fini_stats(9), struct hl_mmap_mem_buf_behavior(9), struct hl_mmap_mem_buf(9), struct hl_cb(9), struct hl_sync_stream_properties(9), struct hl_encaps_signals_mgr(9), struct hl_hw_queue(9), struct hl_cq(9), struct hl_ts_free_jobs(9), struct hl_user_interrupt(9), struct timestamp_reg_free_node(9), struct hl_user_pending_interrupt(9), struct hl_eq(9), struct hl_dec(9), enum hl_asic_type(9), enum hl_pm_mng_profile(9), enum hl_pll_frequency(9), struct pci_mem_region(9), struct static_fw_load_mgr(9), struct fw_response(9), struct dynamic_fw_load_mgr(9), struct pre_fw_load_props(9), struct fw_image_props(9), struct fw_load_mgr(9), struct engines_data(9), struct hl_asic_funcs(9), enum hl_va_range_type(9), struct hl_va_range(9), struct hl_cs_counters_atomic(9), struct hl_dmabuf_priv(9), struct hl_cs_outcome(9), struct hl_cs_outcome_store(9), struct hl_ctx(9), struct hl_ctx_mgr(9), struct hl_userptr(9), struct hl_cs(9), struct hl_cs_job(9), struct hl_cs_parser(9), struct hl_vm_hash_node(9), struct hl_vm_hw_block_list_node(9), struct hl_vm_phys_pg_pack(9), struct hl_vm_va_block(9), struct hl_vm(9), struct hl_debug_params(9), struct hl_notifier_event(9), struct hl_fpriv(9), struct hl_info_list(9), struct hl_debugfs_entry(9), struct hl_dbg_device_entry(9), struct hl_debugfs_cfg_access_entry(9), struct hl_debugfs_cfg_access(9), struct hl_hw_obj_name_entry(9), struct hl_mon_state_dump(9), struct hl_sync_to_engine_map_entry(9), struct hl_sync_to_engine_map(9), struct hl_state_dump_specs_funcs(9), struct hl_state_dump_specs(9), struct hl_device_reset_work(9), struct hl_mmu_priv(9), struct hl_mmu_per_hop_info(9), struct hl_mmu_hop_info(9), struct hl_hr_mmu_funcs(9), struct hl_mmu_funcs(9), struct hl_prefetch_work(9), struct multi_cs_completion(9), struct multi_cs_data(9), struct hl_clk_throttle_timestamp(9), struct hl_clk_throttle(9), struct user_mapped_block(9), struct cs_timeout_info(9), struct undefined_opcode_info(9), struct page_fault_info(9), struct razwi_info(9), struct hw_err_info(9), struct fw_err_info(9), struct engine_err_info(9), struct hl_error_info(9), struct hl_reset_info(9), struct eq_heartbeat_debug_info(9), struct hl_device(9), struct hl_cs_encaps_sig_handle(9), struct hl_info_fw_err_info(9), hl_ioctl_t(9), struct hl_ioctl_desc(9), hl_get_sg_info(9), hl_mem_area_inside_range(9), hl_mem_area_crosses_range(9)

mwah 💋 — source/version: ./drivers/accel/habanalabs/common, dated October 2026, and the manual page is enum hl_queue_type(9) 🎀 periodt.