xprt_rdma_bc_send_reply(9)

💅 xprt_rdma_bc_send_reply — like, the whole vibe

okay so bestie, welcome to the Kernel API Manual ✨ and specifically to xprt_rdma_bc_send_reply, which honestly does exactly what it says on the tin and I respect that so much 🫶

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🌸 NAME 🌸

xprt_rdma_bc_send_reply — marshal and send a backchannel reply, no cap 🎀

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✨ SYNOPSIS ✨

int xprt_rdma_bc_send_reply (struct rpc_rqst *rqst );

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🦋 ARGUMENTS 🦋

• rqst — an RPC rqst that's holding a backchannel RPC reply in rq_snd_buf. that's the whole assignment, she's carrying the reply 💌

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💅 DESCRIPTION 💅

Caller holds the transport's write lock. that's it, that's the note — you must already be holding it, this function is not gonna grab it for you 🙈

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🔥 RETURN 🔥

• 0 — the RPC message has been sent, slay ✅
• -ENOTCONN — the caller should reconnect and call again 🔁 iykyk
• -EIO — a permanent error occurred and the request was not sent. and listen: do not try to send this message again. like, do not. periodt 💀

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🎀 SEE ALSO 🎀

Kernel file ./net/sunrpc/xprtrdma/backchannel.c, plus the whole friend group:

• xprt_rdma_bc_setup(9)
• xprt_rdma_bc_maxpayload(9)
• xprt_rdma_bc_destroy(9)
• xprt_rdma_bc_free_rqst(9)
• rpcrdma_bc_receive_call(9)

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and that's the page!! 🧚 this icon lived at ./net/sunrpc/xprtrdma and was dated October 2026 — mwah, go forth and marshal responsibly bestie 💖⭐🌈