STRUCT DPNI_RX_DIST_CFG(9)

💅 struct dpni_rx_dist_cfg(9) — Kernel API Manual 🎀

okay bestie, welcome to the <purple>dpni_rx_dist_cfg</purple> page from the Kernel API Manual ✨ this is the struct that holds your Rx distribution configuration — like, the whole vibe of how received packets get spread around. sit down, hydrate, let's go 🫶

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🌸 NAME 🌸

struct dpni_rx_dist_cfg — Rx distribution configuration 💖 (yes that's the whole name, it's giving "I do one thing and I do it well")

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✨ SYNOPSIS ✨

struct dpni_rx_dist_cfg {
    u16 dist_size;
    u64 key_cfg_iova;
    u8 enable;
    u8 tc;
    u16 fs_miss_flow_id;
 };

not me obsessing over a five-field struct 😭 it's small but it's mighty, periodt.

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🦋 Members 🦋

• dist_size — the distribution size, literally. that's the whole description, she's concise 👑
• key_cfg_iova — okay so this is the I/O virtual address of 256 bytes of DMA-able memory, filled with the extractions used for the distribution key, and you fill it by calling dpni_prepare_key_cfg 🌈 heads up though: this field is only relevant when enable!=0 — otherwise it can be '0' and nobody's mad about it 🫶
• enable — enable/disable the distribution. on or off, that's the whole job 💅
• tc — the TC id for which the distribution is set 🎀
• fs_miss_flow_id — so when a packet misses all the rules from the flow steering table and hash is disabled, it gets put into this queue id 🍓. use DPNI_FS_MISS_DROP to drop frames (yes, drop them, no cap 💀). ngl the important bit: the value of this field is used only when flow steering distribution is enabled and hash distribution is disabled — iykyk, context matters 🔥

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👑 SEE ALSO 👑

Kernel file ./drivers/net/ethernet/freescale/dpaa2/dpni.h — go read the source bestie, it's right there 🧚

• 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_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)
• struct dpni_rule_cfg(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)

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bestie the whole friend group is here, this struct literally never goes anywhere alone 😭 it's main character energy with a supporting cast of like fifty ✨

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and that's the page!! 💜 source vibes from ./drivers/net/ethernet/freesca... (you know the one, the dpaa2 corner of the kernel 🌈) and it's dated October 2026 — so like, from the future, iconic behavior honestly ⭐ slay, bye 🎀