STRUCT IONIC_DOORBELL(9)

💅 struct ionic_doorbell(9) — the Kernel API Manual glow-up

okay so bestie, welcome to the struct ionic_doorbell(9) page 🌸 this one lives in the Kernel API Manual and honestly? it's giving "small struct, big responsibilities." it's literally the Doorbell register layout — that's the NAME, no cap ✨

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✨ SYNOPSIS ✨

like, here's the whole vibe, and yes you're gonna copy it exactly:

struct ionic_doorbell {
    __le16 p_index;
    u8 ring;
    u8 qid_lo;
    __le16 qid_hi;
    u16 rsvd2;
 };

that's it. five fields. lowkey iconic 🎀

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🦋 Members 🦋

so let's meet the cast, mwah 💋

• p_index — the Producer index. that's her whole job, she produces ✨
• ring — selects the specific ring of the queue to update. it's type-specific, so pay attention bestie:
  • ring=0: the Default producer/consumer queue 🫶
  • ring=1: the (CQ, EQ) Re-Arm queue. RDMA CQs send events to EQs when armed. EQs send interrupts when armed. like, it's the "actually listen to me" ring, iykyk 💅
• qid_lo — Queue destination for the producer index and flags, but the low bits. the little sibling 🧚
• qid_hi — Queue destination for the producer index and flags, but the high bits. the tall sibling 👑
• rsvd2 — reserved byte(s). she's reserved, she's mysterious, she's not for you 🙈

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🌈 SEE ALSO 🌈

bestie there are SO many cousins at this family reunion, and every single one of them is invited. no skipping, we're listing them all fr fr:

• the Kernel file ./drivers/net/ethernet/pensando/ionic/ionic_if.h
• 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)
• union ionic_discover_cmb_identity(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)

like, that's the whole group chat 🔥

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ok that's the page bestie, go ring someone's doorbell 💖

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and like, tiny sign-off because the footer deserves its moment too 🎀 this little masterpiece comes from ./drivers/net/ethernet/pensando/ionic/ionic_if.h, it's dated October 2026, and it's part of the Kernel API Manual. slay, periodt 💅✨