i40e_xmit_descriptor_count(9)

🎀 NAME 🎀

okay bestie, welcome to the i40e_xmit_descriptor_count(9) page in the Kernel API Manual ✨ this one is all about i40e_xmit_descriptor_count — calculate number of Tx descriptors needed 💅

✨ SYNOPSIS ✨

int i40e_xmit_descriptor_count (struct sk_buff *skb );

💅 ARGUMENTS 💅

• skb — send buffer 🫶

🦋 DESCRIPTION 🦋

so the way this works is: it returns number of data descriptors needed for this skb ✨

and if it returns 0, that means there is not enough descriptors available in this ring — because we need at least one descriptor, periodt 💀

🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/intel/i40e/i40e_txrx.h
• i40e_intrl_usec_to_reg(9), i40e_test_staterr(9), i40e_txd_use_count(9), i40e_get_head(9), i40e_maybe_stop_tx(9), i40e_chk_linearize(9), txring_txq(9)

💖 that’s the whole page, bestie! this one came from ./drivers/net/ethernet/intel/i40e, dated October 2026, and it’s the i40e_xmit_descriptor_count(9) page. byeee 🎀