efx_nic_describe_stats(9)

📦 version 7.3.1, in nixpkgs unstable

💅 efx_nic_describe_stats(9) — Kernel API Manual 🎀

okay so bestie, welcome to the efx_nic_describe_stats page, straight out of the Kernel API Manual ✨ this one's a lil function that describes supported statistics for ethtool, and honestly? it's giving "small but iconic." no cap.

🦋 SYNOPSIS 🦋

size_t efx_nic_describe_stats (const struct efx_hw_stat_desc *desc ,
       size_t count , const unsigned long *mask , u8 **names );

that's the whole vibe. four args, one size_t coming back at you. periodt. 💫

🌸 ARGUMENTS 🌸

  • desc — the array of struct efx_hw_stat_desc that's out here describing the statistics. it's the main character of this operation, ngl. 👑
  • count — the length of the desc array. like, how many besties are in the group chat. 🔢
  • mask — a bitmask of which elements of desc are enabled. which ones made the cut, fr fr. ✅
  • names — a buffer to copy names to, or NULL. and listen: the names get copied starting at intervals of ETH_GSTRING_LEN bytes. that spacing detail is important, don't sleep on it. 🫶

✨ DESCRIPTION ✨

so what does it actually do?? it returns the number of visible statistics — meaning the number of set bits in the first count bits of mask for which a name is defined. that's the whole deal. set bit + name exists = counted. 💖

🔥 SEE ALSO 🔥

go read those too, they're literally the friends of this function. squad goals. 🌈

💀 tiny reminder bestie: if names is NULL, that's a whole valid mood — the function still tells you the count. just don't go dereferencing nothing, iykyk. 🙈

mwah 💋 that's the page! this lil slice of kernel wisdom lives at ./drivers/net/ethernet/sfc, dated October 2026, and it's signed off as efx_nic_describe_stats(9) — go forth and count your bits, bestie 🧚‍♀️💜🌸

📦 where this page comes from