STRUCT SRP_FR_POOL(9)

✨ struct srp_fr_pool — NAME ✨

okay so bestie, gather round 💖 this is struct srp_fr_pool(9), like, from the Kernel API Manual — and it is literally a pool of fast registration descriptors. that's the whole vibe. no cap. 🫶

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🦋 SYNOPSIS 🦋

here's the struct in all its main-character glory, copied exactly so u don't have to trust me on vibes alone:

struct srp_fr_pool {
    int size;
    int max_page_list_len;
    spinlock_t lock;
    struct list_head        free_list;
    struct srp_fr_desc      desc[];
 };

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👑 Members 👑

every member, accounted for, no skips, no ✨selective reading✨:

• size — how many descriptors live in this pool. that's the headcount, periodt. 🔥
• max_page_list_len — the maximum fast registration work request page list length. yes the whole phrase, it's giving "long name but she earned it" 💅
• lock — this one's job is literally just protecting free_list. a bodyguard. a bouncer. iconic behaviour honestly. 🎀
• free_list — the list of free descriptors. the available girlies. 🌸
• desc — the fast registration descriptor pool itself. the whole point of the struct, lowkey the main event. ⭐

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🌈 Description 🌈

here's the one rule, and it's the rule:

an entry is available for allocation if and only if it occurs in free_list. 👈 like, that's it. that's the whole contract. not in free_list? not available. in free_list? available. iykyk. 💀✨

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💜 SEE ALSO 💜

go read these next, bestie, they're all in the kernel file ./drivers/infiniband/ulp/srp/ib_srp.h:

• struct srp_rdma_ch(9)
• struct srp_target_port(9)
• struct srp_fr_desc(9)
• struct srp_map_state(9)

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k that's the whole page 💖 this lil doc came from ./drivers/infiniband/ulp/srp, dated October 2026, and she's officially struct srp_fr_pool(9). slay, go read ur structs, mwah 🧚🎀