STRUCT DPNI_RULE_CFG(9)

💅 struct dpni_rule_cfg(9) — the Kernel API Manual tea 🫖

okay bestie, so this is a page from the Kernel API Manual and it's about one struct: struct dpni_rule_cfg, which is literally the rule configuration for table lookup. that's the whole vibe. let's get into it ✨

---

🌸 NAME 🌸

struct dpni_rule_cfg — Rule configuration for table lookup. yes, that's what it does, no notes 💅

---

✨ SYNOPSIS ✨

here's the whole squad, exactly as it appears:

struct dpni_rule_cfg {
    u64 key_iova;
    u64 mask_iova;
    u8 key_size;
 };

three members, three little icons, periodt 🎀

---

🦋 Members (the cast 💖)

• key_iova — the I/O virtual address of the key. and it must be in DMA-able memory, no cap, that's a requirement not a suggestion 👑
• mask_iova — the I/O virtual address of the mask. same deal: must be in DMA-able memory. matching bestie energy 🫶
• key_size — the key and mask size, measured in bytes. yeah, one size for both, it's giving efficient 🌈

---

🎀 SEE ALSO 🎀

okay this list is long but we don't skip, we don't summarise, we list every single one because that's the assignment 💀

first up, the kernel file herself:

• Kernel file ./drivers/net/ethernet/freescale/dpaa2/dpni.h

and the whole extended friend group:

• DPNI_MAX_TC(9)
• DPNI_MAX_DPBP(9)
• DPNI_ALL_TCS(9)
• DPNI_ALL_TC_FLOWS(9)
• DPNI_NEW_FLOW_ID(9)
• DPNI_OPT_TX_FRM_RELEASE(9)
• DPNI_OPT_NO_MAC_FILTER(9)
• DPNI_OPT_HAS_POLICING(9)
• DPNI_OPT_SHARED_CONGESTION(9)
• DPNI_OPT_HAS_KEY_MASKING(9)
• DPNI_OPT_NO_FS(9)
• DPNI_OPT_SHARED_FS(9)
• struct dpni_pools_cfg(9)
• struct dpni_attr(9)
• DPNI_ERROR_EOFHE(9)
• DPNI_ERROR_FLE(9)
• DPNI_ERROR_FPE(9)
• DPNI_ERROR_PHE(9)
• DPNI_ERROR_L3CE(9)
• DPNI_ERROR_L4CE(9)
• enum dpni_error_action(9)
• struct dpni_error_cfg(9)
• DPNI_BUF_LAYOUT_OPT_TIMESTAMP(9)
• DPNI_BUF_LAYOUT_OPT_PARSER_RESULT(9)
• DPNI_BUF_LAYOUT_OPT_FRAME_STATUS(9)
• DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE(9)
• DPNI_BUF_LAYOUT_OPT_DATA_ALIGN(9)
• DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM(9)
• DPNI_BUF_LAYOUT_OPT_DATA_TAIL_ROOM(9)
• struct dpni_buffer_layout(9)
• enum dpni_queue_type(9)
• enum dpni_offload(9)
• union dpni_statistics(9)
• struct dpni_link_cfg(9)
• struct dpni_link_state(9)
• enum dpni_dist_mode(9)
• enum dpni_fs_miss_action(9)
• struct dpni_fs_tbl_cfg(9)
• struct dpni_rx_tc_dist_cfg(9)
• DPNI_FS_MISS_DROP(9)
• struct dpni_rx_dist_cfg(9)
• struct dpni_qos_tbl_cfg(9)
• enum dpni_dest(9)
• struct dpni_queue(9)
• struct dpni_queue_id(9)
• enum dpni_congestion_unit(9)
• enum dpni_congestion_point(9)
• struct dpni_dest_cfg(9)
• DPNI_CONG_OPT_FLOW_CONTROL(9)
• struct dpni_congestion_notification_cfg(9)
• struct dpni_taildrop(9)
• DPNI_FS_OPT_DISCARD(9)
• DPNI_FS_OPT_SET_FLC(9)
• DPNI_FS_OPT_SET_STASH_CONTROL(9)
• struct dpni_fs_action_cfg(9)
• struct dpni_tx_shaping_cfg(9)
• struct dpni_single_step_cfg(9)

like, that's the whole group chat and every single one of them made it into the list 😭💜

---

ngl the only thing this page is strict about: those two addresses have to be DMA-able memory. everything else is just sizes and vibes 🧚

---

and that's the tea, bestie 🍓 this page came from the source ./drivers/net/ethernet/freesca... and it's dated October 2026 — so yeah, it's from the future, main character energy only 👑✨ bye ily 🫶💖