STRUCT CPPI5_MONOLITHIC_DESC_T(9)

💖 struct cppi5_monolithic_desc_t(9) 💖

okay bestie, welcome to the Kernel API Manual — yes we're reading kernel headers together, this is our bonding era 🫶

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✨ NAME ✨

struct cppi5_monolithic_desc_t — the Monolithic-mode packet descriptor. that's it, that's the whole vibe. it's giving "one descriptor to rule them all" energy 👑

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🌸 SYNOPSIS 🌸

struct cppi5_monolithic_desc_t {
    struct cppi5_desc_hdr_t hdr;
    u32 epib[];
};

literally the whole struct, no cap. it's a header plus a lil flexible array, and the flex array is where the ~drama~ lives 💅

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🎀 Members 🎀

• hdr — the Descriptor header. every icon needs her header first, she's the main character of this struct.
• epib — okay so this is the flexible part and she's got RANGE, bestie:
  • Extended Packet Info Data — optional, 4 words
  • and/or Protocol Specific Data — optional, 0-128 bytes in multiples of 4
  • and/or Other Software Data — 0-N bytes, optional

so yeah, epib is the "and/or" queen 🌈 three different flavours of payload can live in there, it's a whole vibe check every time you read it. iykyk.

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🦋 SEE ALSO 🦋

the full squad, appearing in the order the original gave us (do NOT come for me, this is verbatim and I respect the source 🙈):

• Kernel file ./include/linux/dma/ti-cppi5.h
• struct cppi5_desc_hdr_t(9)
• struct cppi5_host_desc_t(9)
• struct cppi5_desc_epib_t(9)
• cppi5_desc_is_tdcm(9)
• cppi5_desc_get_type(9)
• cppi5_desc_get_errflags(9)
• cppi5_desc_get_pktids(9)
• cppi5_desc_set_pktids(9)
• cppi5_desc_set_retpolicy(9)
• cppi5_desc_get_tags_ids(9)
• cppi5_desc_set_tags_ids(9)
• cppi5_hdesc_calc_size(9)
• cppi5_hdesc_init(9)
• cppi5_hdesc_update_flags(9)
• cppi5_hdesc_update_psdata_size(9)
• cppi5_hdesc_get_psdata_size(9)
• cppi5_hdesc_get_pktlen(9)
• cppi5_hdesc_set_pktlen(9)
• cppi5_hdesc_get_psflags(9)
• cppi5_hdesc_set_psflags(9)
• cppi5_hdesc_get_pkttype(9)
• cppi5_hdesc_set_pkttype(9)
• cppi5_hdesc_attach_buf(9)
• cppi5_hdesc_link_hbdesc(9)
• cppi5_hdesc_epib_present(9)
• cppi5_hdesc_get_psdata(9)
• cppi5_hdesc_get_swdata(9)
• enum cppi5_tr_types(9)
• enum cppi5_tr_event_size(9)
• enum cppi5_tr_trigger(9)
• enum cppi5_tr_trigger_type(9)
• struct cppi5_tr_type0_t(9)
• struct cppi5_tr_type1_t(9)
• struct cppi5_tr_type2_t(9)
• struct cppi5_tr_type3_t(9)
• struct cppi5_tr_type15_t(9)
• struct cppi5_tr_resp_t(9)
• enum cppi5_tr_resp_status_type(9)
• enum cppi5_tr_resp_status_submission(9)
• enum cppi5_tr_resp_status_unsupported(9)
• cppi5_trdesc_calc_size(9)
• cppi5_trdesc_init(9)
• cppi5_tr_init(9)
• cppi5_tr_set_trigger(9)
• cppi5_tr_csf_set(9)

like, that's 45 references plus the kernel file. she's thorough. she ate and left no crumbs 🔥

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quick reminder for the girlies: the file path is ./include/linux/dma/ti-cppi5.h — go read it, it's free real estate 💜

and that's the page! brought to you by the fine people at ./include/linux/dma, dated October 2026, from the one and only Kernel API Manual ⭐ bye bestie, go read some struct cppi5_desc_hdr_t(9) next, slay 🧚💖