UNION LEAPRAID_IEEE_SGE_CHAIN_UNION(9)

💅 union leapraid_ieee_sge_chain_union(9) — from the Kernel API Manual, bestie

okay so picture this: you're deep in the leapraid kernel headers, it's giving 3am, and you meet union leapraid_ieee_sge_chain_union. she's the unified IEEE SGE chain format. that's the whole vibe. one union, two shapes. iconic behaviour honestly ✨

ngl this one's a short page but she still ate — don't skip the linup below, it's literally the whole leapraid cinematic universe 🎬

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✨ NAME ✨

union leapraid_ieee_sge_chain_union — the unified IEEE SGE chain format 🎀

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🌸 SYNOPSIS 🌸

union leapraid_ieee_sge_chain_union {
    struct leapraid_ieee_sge_simple32 chain32;
    struct leapraid_ieee_sge_simple64 chain64;
 };

like, that's it. that's the girl. 🦋

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💜 Members 💜

• chain32 — the IEEE 32-bit chain SGE entry. smol width, big energy 🍓
• chain64 — the IEEE 64-bit chain SGE entry. wide girl summer 💫

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🔥 SEE ALSO 🔥

okay bestie, buckle up — the cross-reference list on this one is long. this is the iykyk section. every single one of these, no cap, fr fr 👑

the file itself:

• Kernel file ./drivers/scsi/leapraid/leapraid.h
• struct leapraid_reg_base(9)

the req/rep + SGE girlies:

• struct leapraid_atomic_req_desc(9)
• union leapraid_rep_desc_union(9)
• struct leapraid_req(9)
• struct leapraid_rep(9)
• struct leapraid_sge_simple32(9)
• struct leapraid_sge_simple64(9)
• struct leapraid_sge_simple_union(9)
• struct leapraid_sge_chain_union(9)
• struct leapraid_ieee_sge_simple32(9)
• struct leapraid_ieee_sge_simple64(9)
• union leapraid_ieee_sge_simple_union(9)
• struct leapraid_chain64_ieee_sg(9)
• union leapraid_ieee_sge_io_union(9)
• union leapraid_simple_sge_union(9)
• union leapraid_sge_io_union(9)

config + boot device core:

• struct leapraid_cfg_pg_header(9)
• struct leapraid_cfg_ext_pg_header(9)
• struct leapraid_cfg_req(9)
• struct leapraid_cfg_rep(9)
• struct leapraid_boot_dev_format_sas_wwid(9)
• struct leapraid_boot_dev_format_enc_slot(9)
• struct leapraid_boot_dev_format_dev_name(9)
• union leapraid_boot_dev_format(9)

manufacturing / BIOS pages:

• struct leapraid_manufacturing_p0(9)
• struct leapraid_bios_page2(9)
• struct leapraid_bios_page3(9)

RAID volumes + physical disks:

• struct leapraid_raidvol0_phys_disk(9)
• struct leapraid_raidvol_p0(9)
• struct leapraid_raidvol_p1(9)
• struct leapraid_raidpd_p0(9)

SAS io unit / expander / device / phy / enclosure:

• struct leapraid_sas_io_unit0_phy_info(9)
• struct leapraid_sas_io_unit_p0(9)
• struct leapraid_exp_p0(9)
• struct leapraid_exp_p1(9)
• struct leapraid_sas_dev_p0(9)
• struct leapraid_sas_phy_p0(9)
• struct leapraid_enc_p0(9)

RAID config page zero:

• struct leapraid_raid_cfg_p0_element(9)
• struct leapraid_raid_cfg_p0(9)

SCSI io + task management:

• union leapraid_mpi_scsi_io_cdb_union(9)
• struct leapraid_mpi_scsiio_req(9)
• union leapraid_scsi_io_cdb_union(9)
• struct leapraid_scsiio_req(9)
• struct leapraid_scsiio_rep(9)
• struct leapraid_scsi_tm_req(9)
• struct leapraid_scsi_tm_rep(9)

SEP + adapter init / log / features / scan:

• struct leapraid_sep_req(9)
• struct leapraid_sep_rep(9)
• struct leapraid_adapter_init_req(9)
• struct leapraid_rep_desc_q_arr(9)
• struct leapraid_adapter_init_rep(9)
• struct leapraid_adapter_log_req(9)
• struct leapraid_adapter_log_rep(9)
• struct leapraid_adapter_features_req(9)
• struct leapraid_adapter_features_rep(9)
• struct leapraid_scan_dev_req(9)
• struct leapraid_scan_dev_rep(9)

event notifications (the drama):

• struct leapraid_evt_notify_req(9)
• struct leapraid_evt_notify_rep(9)
• struct leapraid_evt_data_sas_dev_status_change(9)
• struct leapraid_evt_data_ir_change(9)
• struct leapraid_evt_data_sas_disc(9)
• struct leapraid_evt_sas_topo_phy_entry(9)
• struct leapraid_evt_data_sas_topo_change_list(9)
• struct leapraid_evt_data_sas_enc_dev_status_change(9)

io unit control + RAID actions + SMP passthrough:

• struct leapraid_io_unit_ctrl_req(9)
• struct leapraid_io_unit_ctrl_rep(9)
• struct leapraid_raid_act_req(9)
• struct leapraid_raid_act_rep(9)
• struct leapraid_smp_passthrough_req(9)
• struct leapraid_smp_passthrough_rep(9)
• struct leapraid_sas_io_unit_ctrl_req(9)

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🫶 reminder bestie: that's 68 cross-refs and yes you should probably go read the ones you actually need instead of pretending you read all of them. we've all done it. no judgement 💀

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okay that's the page!! this lil cutie lives over in ./drivers/scsi/leapraid, and she was dated October 2026 in the Kernel API Manual — so yeah, mark your calendar, she's from the future and she's serving 👑✨ mwah, go write some good chains 💖🎀🦋