tn40_tx_push_desc(9)

okay so bestie, welcome to tn40_tx_push_desc(9) — the Kernel API Manual page that’s literally all about pushing a descriptor to the TxD fifo. no cap. 💅✨

🎀 NAME 🎀

tn40_tx_push_desc — push a descriptor to TxD fifo. 🫶

✨ SYNOPSIS ✨

void tn40_tx_push_desc (struct tn40_priv *priv , void *data , int size
);

💖 ARGUMENTS 💖

• priv — NIC private structure. it’s giving “the NIC’s own private structure” energy. 👑
• data — desc’s data. yes, the descriptor’s data. 🍓
• size — desc’s size. the size of the descriptor. 📏

🌸 DESCRIPTION 🌸

okay so here’s the tea: this function pushes desc to the TxD fifo, and it overlaps it if needed. literally that’s the whole move. 💫

⚠️ important caveat, bestie: this function does not check for available space. it also does not check that the data size is smaller than the fifo size. nope, not doing it. 🙈

checking for space is the responsibility of the caller. so if you’re calling this, the space check is your main character moment. own it. 💅

🦋 SEE ALSO 🦋

peep the Kernel file ./drivers/net/ethernet/tehuti/tn40.c and these absolute icons:

• tn40_create_rx_ring(9)
• tn40_rx_alloc_buffers(9)
• tn40_tx_map_skb(9)
• tn40_tx_space(9)
• tn40_tx_push_desc_safe(9)

xoxo, this page is serving source/version ./drivers/net/ethernet/tehuti, October 2026 edition, and it’s still tn40_tx_push_desc(9) at heart 💜🎀