qeth_fill_buffer(9)

🌸 NAME 🌸

okay so welcome to qeth_fill_buffer(9) from the Kernel API Manual ✨ — this is literally the function that maps an skb into an output buffer 💅. That's the whole vibe. No cap.

✨ SYNOPSIS ✨

unsigned int qeth_fill_buffer (struct qeth_qdio_out_buffer *buf , struct
sk_buff *skb , struct qeth_hdr *hdr , unsigned int offset , unsigned int
hd_len );

💅 ARGUMENTS 💅

bestie, here's the tea on every single parameter 🍓:

• buf — buffer to transport the skb 🎀
• skb — skb to map into the buffer 🦋
• hdr — qeth_hdr for this skb. Either at skb->data, or allocated from qeth_core_header_cache. 👑
• offset — when mapping the skb, start at skb->data + offset 🌈
• hd_len — if > 0, build a dedicated header element of this size 💖

🦋 SEE ALSO 🦋

Kernel file ./drivers/s390/net/qeth_core_main.c is the main-character file to check, fr fr 👀. Then go peek at these icons:

• qeth_irq(9)
• qeth_send_control_data(9)
• qeth_prep_flush_pack_buffer(9)
• qeth_get_elements_for_frags(9)
• qeth_count_elements(9)
• qeth_add_hw_header(9)
• qeth_vm_request_mac(9)
• qeth_enable_hw_features(9)

Sign-off vibes: ./drivers/s390/net · October 2026 · qeth_fill_buffer(9) 💜✨