lpfc_sli4_n...andom_select(9)

📦 version 7.3.1, in nixpkgs unstable

💅 lpfc_sli4_new_fcf_random_select(9) — Kernel API Manual 🎀

okay so bestie, this one is from the Kernel API Manual (section 9, the fun one) and it's lowkey iconic: it's the lil function that picks your FCF record for you, like a randomizer but make it kernel 💖

✨ NAME ✨

lpfc_sli4_new_fcf_random_select — randomly select an eligible new fcf record 🎲

🌸 SYNOPSIS 🌸

bool lpfc_sli4_new_fcf_random_select (struct lpfc_hba *phba , uint32_t
fcf_cnt );

like, it returns a bool, takes a struct lpfc_hba * and a uint32_t, and yes the spacing is exactly that, don't come for me 🙈

🦋 ARGUMENTS 🦋

  • phba — pointer to lpfc hba data structure. (the main character of the whole hba situation 👑)
  • fcf_cnt — number of eligible fcf record seen so far. (no cap, that's how many we've clocked 💀)

🧚 DESCRIPTION 🧚

so here's the vibe: this function makes a running random selection decision on which FCF record to use, stepping through a sequence of fcf_cnt eligible FCF records, each one with equal probability ✨ like a fair draw, no favorites, we love to see it.

to do the integer manunipulation of random numbers with size unit32_t, a 16-bit random number returned from get_random_u16 is taken as the random random number generated 🎀 (yes, that's the actual wording, and honestly? slay, it's giving "trust the process")

returns true when the outcome is that the newly read FCF record should be chosen 🫶 otherwise, it returns false when the outcome is that we keep the previously chosen FCF record 💜

fr fr, it's just a coin-flip-but-make-it-fair between "new one" and "the one we already had" — no drama, just probability 💅

🔥 SEE ALSO 🔥

Kernel file ./drivers/scsi/lpfc/lpfc_hbadisc.c — that's the home base bestie, go read it 🌈

and now the whole friend group, in order, exactly as listed (yes all of them, i'm not skipping a single one, i would never 😭):

and that's the whole page, bestie 🫶 it lives over in ./drivers/scsi/lpfc, dated October 2026, and this lil header/footer combo — lpfc_sli4_n...andom_select(9) — is giving main character energy from top to bottom 💖✨ no notes, periodt 🎀

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