hfi1_rcd_head(9)

💅 hfi1_rcd_head(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's a lil function called hfi1_rcd_head, and it's literally just an accessor for the rcd head 🎀. Yes, that's the whole vibe. She's a getter. She gets. Periodt.

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✨ NAME ✨

hfi1_rcd_head — add accessor for rcd head 🫶

Like, someone had to add it, and now it's here, and we're obsessed.

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🌸 SYNOPSIS 🌸

u32 hfi1_rcd_head (struct hfi1_ctxtdata *rcd );

that's it. that's the whole call. u32 in, u32 out, one pointer in the middle. iconic behavior honestly 💖

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🦋 ARGUMENTS 🦋

• rcd — the context ✨ like, the context you're handing over. that's your whole param. she takes one (1) thing and she's happy.

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🔥 SEE ALSO 🔥

bestie the cross-reference list is LONG and honestly? it ate 👑

• Kernel file ./drivers/infiniband/hw/hfi1/hfi.h — this is where the header lives, iykyk
• rcvhdrq_size(9)
• hfi1_get_rc_ohdr(9)
• hfi1_set_rcd_head(9) — the setter to this getter, they're a matching set, couple goals 💜
• hfi1_seq_incr_wrap(9)
• hfi1_seq_cnt(9)
• hfi1_set_seq_cnt(9)
• last_rcv_seq(9)
• get_hdrqentsize(9)
• get_hdrq_cnt(9)
• hfi1_is_slowpath(9)
• hfi1_is_fastpath(9)
• hfi1_set_fast(9)
• sc_to_vlt(9)
• hfi1_may_ecn(9)
• hfi1_rcvhdrtail_kvaddr(9)
• hfi1_need_drop(9)

ngl if you're reading this page you should probably go read like four of those too. go on. slay. 🌈

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💫 and that's the whole page, bestie 💫

cute little sign-off moment: this one's from the source path ./drivers/infiniband/hw/hfi1, and it's dated October 2026 — so like, future vibes, main character energy fr fr 🌟🫶💖