UNION IONIC_DISCOVER_CMB_IDENTITY(9)

💅 union ionic_discover_cmb_identity(9) — CMB layout identity structure

okay so this is a page straight out of the Kernel API Manual bestie, and it's the whole entire ~vibe~ of one little union: union ionic_discover_cmb_identity. it's the CMB layout identity structure, and yes it's giving "I contain multitudes" energy 👑

✨ SYNOPSIS ✨

union ionic_discover_cmb_identity {
    struct {
      __le32 num_regions;
  #define IONIC_CMB_FLAG_EXPDB    BIT(0);
  #define IONIC_CMB_FLAG_4KALIGN  BIT(1);
  #define IONIC_CMB_FLAG_VERSION  0xff000000;
      __le32 flags;
      union ionic_cmb_region region[IONIC_MAX_CMB_REGIONS];
    };
    __le32 words[478];
 };

like, copy that exactly pls, character for character, no notes 🙈

🌸 Members 🌸

• {unnamed_struct} — anonymous. that's it, that's the whole description. she has no name and honestly? main character energy. 🎀
• num_regions — Number of CMB regions, up to 16. lowkey the headcount of the whole operation 💖
• flags — Feature and capability bits. and here's the tea: bit 0 = express doorbell, bit 1 = 4K alignment indicator, and bits 31-24 carry the version information. so it's doing three jobs at once and slaying all of them ✨
• region — CMB mappings region. entry 0 is the regular mapping, and entries 1-7 are for WQE sizes 64, 128, 256, 512, 1024, 2048 and 4096 bytes. a whole little ladder of sizes, we love a structured icon 🌈
• words — Full union buffer size. it's the __le32 words[478] energy, the big container, the one that holds it all together fr fr 👑

🦋 SEE ALSO 🦋

Kernel file ./drivers/net/ethernet/pensando/ionic/ionic_if.h — and okay bestie, buckle up because the friend group is LARGE, here's literally everyone 👇

• struct ionic_admin_cmd(9)
• struct ionic_admin_comp(9)
• struct ionic_nop_cmd(9)
• struct ionic_nop_comp(9)
• struct ionic_dev_init_cmd(9)
• struct ionic_dev_init_comp(9)
• struct ionic_dev_reset_cmd(9)
• struct ionic_dev_reset_comp(9)
• struct ionic_dev_identify_cmd(9)
• struct ionic_dev_identify_comp(9)
• union ionic_drv_identity(9)
• enum ionic_dev_capability(9)
• union ionic_dev_identity(9)
• struct ionic_lif_identify_cmd(9)
• struct ionic_lif_identify_comp(9)
• enum ionic_lif_capability(9)
• enum ionic_logical_qtype(9)
• enum ionic_q_feature(9)
• enum ionic_rxq_feature(9)
• enum ionic_txq_feature(9)
• enum ionic_hwstamp_bits(9)
• struct ionic_lif_logical_qtype(9)
• enum ionic_lif_state(9)
• union ionic_lif_config(9)
• enum ionic_lif_rdma_cap_stats(9)
• union ionic_lif_identity(9)
• struct ionic_lif_init_cmd(9)
• struct ionic_lif_init_comp(9)
• struct ionic_q_identify_cmd(9)
• struct ionic_q_identify_comp(9)
• union ionic_q_identity(9)
• struct ionic_q_init_cmd(9)
• struct ionic_q_init_comp(9)
• struct ionic_txq_desc(9)
• struct ionic_txq_sg_elem(9)
• struct ionic_txq_sg_desc(9)
• struct ionic_txq_comp(9)
• struct ionic_rxq_desc(9)
• struct ionic_rxq_sg_elem(9)
• struct ionic_rxq_sg_desc(9)
• struct ionic_rxq_comp(9)
• enum ionic_pkt_class(9)
• struct ionic_q_control_cmd(9)
• enum ionic_phy_type(9)
• enum ionic_xcvr_state(9)
• enum ionic_port_type(9)
• enum ionic_port_admin_state(9)
• enum ionic_port_oper_status(9)
• enum ionic_port_fec_type(9)
• enum ionic_port_pause_type(9)
• enum ionic_port_loopback_mode(9)
• struct ionic_xcvr_status(9)
• union ionic_port_config(9)
• struct ionic_port_status(9)
• struct ionic_port_identify_cmd(9)
• struct ionic_port_identify_comp(9)
• struct ionic_port_init_cmd(9)
• struct ionic_port_init_comp(9)
• struct ionic_port_reset_cmd(9)
• struct ionic_port_reset_comp(9)
• enum ionic_stats_ctl_cmd(9)
• enum ionic_txstamp_mode(9)
• enum ionic_port_attr(9)
• struct ionic_port_setattr_cmd(9)
• struct ionic_port_setattr_comp(9)
• struct ionic_port_getattr_cmd(9)
• struct ionic_port_getattr_comp(9)
• struct ionic_lif_status(9)
• struct ionic_lif_reset_cmd(9)
• enum ionic_dev_attr(9)
• struct ionic_dev_setattr_cmd(9)
• struct ionic_dev_setattr_comp(9)
• struct ionic_dev_getattr_cmd(9)
• struct ionic_dev_getattr_comp(9)
• enum ionic_lif_attr(9)
• struct ionic_lif_setattr_cmd(9)
• struct ionic_lif_setattr_comp(9)
• struct ionic_lif_getattr_cmd(9)
• struct ionic_lif_getattr_comp(9)
• struct ionic_lif_setphc_cmd(9)
• struct ionic_rx_mode_set_cmd(9)
• struct ionic_rx_filter_add_cmd(9)
• struct ionic_rx_filter_add_comp(9)
• struct ionic_rx_filter_del_cmd(9)
• enum ionic_vf_link_status(9)
• struct ionic_vf_setattr_cmd(9)
• struct ionic_vf_getattr_cmd(9)
• struct ionic_vf_ctrl_cmd(9)
• struct ionic_vf_ctrl_comp(9)
• struct ionic_discover_cmb_cmd(9)
• struct ionic_discover_cmb_comp(9)
• union ionic_cmb_region(9)
• struct ionic_qos_identify_cmd(9)
• struct ionic_qos_identify_comp(9)
• enum ionic_qos_class_type(9)
• enum ionic_qos_sched_type(9)
• union ionic_qos_config(9)
• union ionic_qos_identity(9)
• struct ionic_qos_init_cmd(9)
• struct ionic_qos_reset_cmd(9)
• struct ionic_qos_clear_stats_cmd(9)
• struct ionic_fw_download_cmd(9)
• enum ionic_fw_control_oper(9)
• struct ionic_fw_control_cmd(9)
• struct ionic_fw_control_comp(9)
• struct ionic_rdma_reset_cmd(9)
• struct ionic_rdma_queue_cmd(9)
• struct ionic_notifyq_event(9)
• struct ionic_link_change_event(9)
• struct ionic_reset_event(9)
• struct ionic_heartbeat_event(9)
• struct ionic_log_event(9)
• struct ionic_xcvr_event(9)
• union ionic_port_identity(9)
• struct ionic_port_info(9)
• struct ionic_lif_info(9)
• struct ionic_hwstamp_regs(9)
• union ionic_dev_info_regs(9)
• union ionic_dev_cmd_regs(9)
• union ionic_dev_regs(9)
• struct ionic_doorbell(9)

like I said. LARGE friend group. iykyk 🫶

quick vibe check bestie: this page is literally just describing a layout — no options, no env vars, no exit codes, no signals, no bugs, no warnings. just a union, its members, and its enormous SEE ALSO squad. don't go looking for drama that isn't there 💀

and that's the whole page!! 🎀 source path vibes were ./drivers/net/ethernet/pensand..., dated October 2026, and the footer was serving union ionic...cmb_identity(9) one more time for the cheap seats. mwah, go read your structs, ily, periodt 💜✨