i40e_can_reuse_rx_page(9)

📦 version 7.3.1, in nixpkgs unstable

💖 i40e_can_reuse_rx_page 💖

okay so bestie, welcome to the i40e_can_reuse_rx_page page from the Kernel API Manual — yes we're in kernel land, yes it's giving drivers/net energy, and honestly? iconic. let's get into it 🫶

🌸 NAME 🌸

i40e_can_reuse_rx_page — the little vibe check that tells you whether a page can be reused for another Rx 💅

✨ SYNOPSIS ✨

bool i40e_can_reuse_rx_page (struct i40e_rx_buffer *rx_buffer , struct
i40e_rx_queue_stats *rx_stats );

like, that's the whole signature, no cap 🎀

🦋 ARGUMENTS 🦋

  • rx_buffer — the buffer that's holding the page, main character of this whole function fr
  • rx_stats — the rx stats structure for the rx ring, she's the receipts keeper 📊

💜 DESCRIPTION 💜

so here's the tea: if the page is reusable, we have a literal green light 🟢 to go call i40e_reuse_rx_page, which will assign the current buffer to the buffer that next_to_alloc is pointing to. slay.

but if it's NOT reusable? then nope, the DMA mapping needs to be destroyed and the page freed. no salvaging, we clean up properly 😭

also <pink>rx_stats</pink> gets updated to show whether the page was waived or busy if it couldn't be reused — so the stats always know what went down, periodt.

🔥 SEE ALSO 🔥

Kernel file ./drivers/net/ethernet/intel/i40e/i40e_txrx.c

and now, the friend group of cross-references (this list is LONG bestie, hydrate before reading 💀):

like I said. LONG. but every single one is here because we do NOT gatekeep 🌈

🧚 sign-off 🧚

that's the page bestie!! brought to you by the source in ./drivers/net/ethernet/intel/i40e, dated October 2026, from the Kernel API Manual — go forth and reuse those pages responsibly 💜⭐

i40e_can_reuse_rx_page(9) — periodt. 🎀

📦 where this page comes from