STRUCT QRTR_TX_FLOW(9)

🎀 NAME 🎀

struct qrtr_tx_flow — tx flow control, and yes bestie we are getting into it 💅

okay so real quick before anything: this page lives in the Kernel API Manual, section 9 — the kernel-internals zone, iykyk. It's a struct, it's in ./net/qrtr, and it's lowkey the little traffic-cop of transmit flow control 🚦✨

✨ SYNOPSIS ✨

struct qrtr_tx_flow {
    struct wait_queue_head resume_tx;
    int pending;
    int tx_failed;
 };

that's the whole vibe, three members, no cap 🫶

🌸 Members 🌸

• resume_tx — the wait queue head where everybody hangs out waiting for a resume tx from the remote 😴 like a little waiting room but for packets, fr fr
• pending — number of waiting senders 💀 it's giving "how many people are in the queue" energy, and it's an int, so it's counting, not vibing
• tx_failed — indicates that a message with the confirm_rx flag was lost 😭 yeah, that one. this is the "something got dropped" flag and we respect it

🔥 SEE ALSO 🔥

Kernel file ./net/qrtr/af_qrtr.c — that's where the actual source lives, go look, it's iconic 👑

• struct qrtr_hdr_v1(9)
• struct qrtr_hdr_v2(9)
• struct qrtr_node(9)
• qrtr_tx_resume(9)
• qrtr_tx_wait(9)
• qrtr_tx_flow_failed(9)
• qrtr_endpoint_post(9)
• qrtr_alloc_ctrl_packet(9)
• qrtr_endpoint_register(9)
• qrtr_endpoint_unregister(9)

the whole qrtr friend group honestly, go read them all, they're all canon 🦋

anyway that's the page bestie, straight from ./net/qrtr, dated October 2026 ⭐ mwah, go forth and flow-control responsibly 💜🧚