ENUM CPPI5_TR_EVENT_SIZE(9)

✨ enum cppi5_tr_event_size(9) ✨

okay bestie, so this is a page from the Kernel API Manual and honestly it's giving very niche-but-iconic 💅. We're talking about the EVENT_SIZE field of the TR Flags — that's the lil setting that decides when an event gets generated for each TR. Like, the timing of the whole thing. no cap. 🎀

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🌸 NAME 🌸

enum cppi5_tr_event_size — the TR Flags EVENT_SIZE field, which specifies when an event is generated for each TR. that's it, that's the vibe check 🦋

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✨ SYNOPSIS ✨

enum cppi5_tr_event_size {
    CPPI5_TR_EVENT_SIZE_COMPLETION ,
    CPPI5_TR_EVENT_SIZE_ICNT1_DEC ,
    CPPI5_TR_EVENT_SIZE_ICNT2_DEC ,
    CPPI5_TR_EVENT_SIZE_ICNT3_DEC

};

like, four whole options, all of them slaying in their own way 😌

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👑 Constants 👑

• CPPI5_TR_EVENT_SIZE_COMPLETION — the moment of truth fr fr: you get the event when the TR is complete and all status for the TR has been received. finished, done, periodt 💖
• CPPI5_TR_EVENT_SIZE_ICNT1_DEC — it's giving conditional, bestie. For Type 0: event fires when the last data transaction is sent for the TR. For Type 1-11: event fires when ICNT1 is decremented. iykyk 🌟
• CPPI5_TR_EVENT_SIZE_ICNT2_DEC — for Type 0-1,10-11: when the last data transaction is sent for the TR. For all other types: when ICNT2 is decremented. yes there's lore 🫶
• CPPI5_TR_EVENT_SIZE_ICNT3_DEC — for Type 0-2,10-11: when the last data transaction is sent for the TR. For all other types: when ICNT3 is decremented. the pattern is patterning 🔥

bestie pls note: those type ranges are exactly as written — don't go round quoting Type 0-3 or anything, the numbers are the numbers 💀

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🦋 SEE ALSO 🦋

Kernel file ./include/linux/dma/ti-cppi5.h — and like, the whole cppi5 friend group, honestly, they all show up here:

• struct cppi5_desc_hdr_t(9)
• struct cppi5_host_desc_t(9)
• struct cppi5_desc_epib_t(9)
• struct cppi5_monolithic_desc_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_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, read the whole squad, it's a mood 🌈

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kisses bestie, mwah 💋 this lil page lives in ./include/linux/dma and it's stamped October 2026 — go off, you now understand enum cppi5_tr_event_size(9) better than most people alive 🧚‍♀️⭐💜