STRUCT NFP_NSP_COMMAND_ARG(9)

💖 struct nfp_nsp_command_arg(9) 💖

okay bestie, so this is a page from the Kernel API Manual and honestly? it's giving "small struct, huge responsibility." it's the struct nfp_nsp_command_arg — the NFP command argument structure. that's the NAME section, we're done with it, slay. ✨

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🌸 SYNOPSIS 🌸

like, here's the whole vibe, character for character:

struct nfp_nsp_command_arg {
    u16 code;
    bool dma;
    unsigned int timeout_sec;
    u32 option;
    u64 buf;
    void (*error_cb)(struct nfp_nsp *state, u32 ret_val);
    bool error_quiet;
 };

look at her. seven members. main character energy fr. 💅

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🎀 Members 🎀

okay so let's go member by member, no skips, we're not doing that today:

• code — the NFP SP Command Code. that's the code. the command code. NFP SP flavored. 💜
• dma — a bool and it's lowkey important: it means buf points to a host buffer, not an NSP buffer. yes, that distinction matters. know it. 🦋
• timeout_sec — timeout value to wait for completion, measured in seconds. an unsigned int, so like, be normal about the numbers you give her. ⏰
• option — the NFP SP Command Argument. a u32. iconic, no notes. ✨
• buf — the NFP SP Buffer Address, a u64. where the buffer lives. (see dma up there for the whole host-vs-NSP thing, iykyk) 🫶
• error_cb — callback for interpreting option if an error occurred. signature is void (*error_cb)(struct nfp_nsp *state, u32 ret_val); — so it takes the state and the ret_val, mwah. 💖
• error_quiet — "don't print command error/warning." BUT — and this is the part you cannot miss — protocol errors are still logged. so quiet is not silent, bestie. do not let that one slide. 🫶

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🦋 SEE ALSO 🦋

• Kernel file ./drivers/net/ethernet/netronome/nfp/nfpcore/nfp_nsp.c
• struct nfp_nsp_command_buf_arg(9)
• nfp_nsp_open(9)
• nfp_nsp_close(9)
• __nfp_nsp_command(9)

go read them, they're all friends of hers, the whole friend group ate. 🌈⭐

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ngl the only "warning" here is the error_quiet one: turning it on does not mean protocol errors stop being logged. that's the whole note. that's the tea. 🍓

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and that's the page, bestie — from ./drivers/net/ethernet/netrono... (they truncated it, not me 😭) dated October 2026, closing out with struct nfp_nsp_command_arg(9) right there in the footer. periodt. 💅👑