ENUM CPPI5_TR_TRIGGER_TYPE(9)

💅 enum cppi5_tr_trigger_type(9) 💅

okay bestie, welcome to the Kernel API Manual ✨ — yes we're in the kernel docs and yes it's lowkey iconic. this page is all about enum cppi5_tr_trigger_type, which is the little enum that says what the TRIGGERx_TYPE field in a TR actually means — like, what kind of data transfer gets unlocked when a trigger (as specified by TRIGGERx) shows up. it's giving "the trigger's whole personality". 🎀

---

🌸 NAME 🌸

enum cppi5_tr_trigger_type — the TRIGGERx_TYPE field in the TR Flags specifies the type of data transfer that will be enabled by receiving a trigger as specified by TRIGGERx. no cap, that's literally its whole job. 💖

---

✨ SYNOPSIS ✨

enum cppi5_tr_trigger_type {
    CPPI5_TR_TRIGGER_TYPE_ICNT1_DEC ,
    CPPI5_TR_TRIGGER_TYPE_ICNT2_DEC ,
    CPPI5_TR_TRIGGER_TYPE_ICNT3_DEC ,
    CPPI5_TR_TRIGGER_TYPE_ALL

};

look at her. four constants. zero notes. main character energy fr fr 🦋

---

🎀 Constants 🎀

okay so here's the vibe check on each one — every single one matters, don't skip:

• CPPI5_TR_TRIGGER_TYPE_ICNT1_DEC — the second inner most loop (ICNT1) will be decremented by 1. 💅
• CPPI5_TR_TRIGGER_TYPE_ICNT2_DEC — the third inner most loop (ICNT2) will be decremented by 1. ✨
• CPPI5_TR_TRIGGER_TYPE_ICNT3_DEC — the outer most loop (ICNT3) will be decremented by 1. 🔥
• CPPI5_TR_TRIGGER_TYPE_ALL — the entire TR will be allowed to complete. she said "all of it, periodt". 👑

ngl, the loop numbering is exactly what the original says — ICNT1 = second inner most, ICNT2 = third inner most, ICNT3 = outer most. not me double-checking, that's just how it is. 🫶

---

🦋 SEE ALSO 🦋

Kernel file ./include/linux/dma/ti-cppi5.h — then the whole squad, in order, no one left behind 💜:

• 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_event_size(9)
• enum cppi5_tr_trigger(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)

---

that's the whole page bestie, go be smart with your triggers 💖✨🌸

sign-off time 🎀 — this one lives in ./include/linux/dma, dated October 2026, and it's filed under enum cppi5_tr_trigger_type(9). iykyk 💅🦋