ntb_msi_setup_mws(9)

💅 ntb_msi_setup_mws(9) 💅

okay so bestie, welcome to the Kernel API Manual, we're talking about ntb_msi_setup_mws today and honestly it's kind of a big deal ✨

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🎀 NAME 🎀

ntb_msi_setup_mws — Initialize the MSI inbound memory windows 🦋

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✨ SYNOPSIS ✨

int ntb_msi_setup_mws (struct ntb_dev *ntb );

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🌸 ARGUMENTS 🌸

• ntb — the NTB device context, like, the whole vibe of the device you're working with 🫶

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👑 DESCRIPTION 👑

So here's the tea ☕ — this function sets up the required inbound memory windows. That's literally its whole job and it ate.

It should be called from a work function after a link up event. Like, that's the moment, that's the cue, do it then 💅

Over the entire network, this function will reserves the last N inbound memory windows for each peer (where N is the number of peers). yes, "will reserves", we don't edit the lore, we just report it 🫡

⚠️ big one bestie: ntb_msi_init must be called before this function. Not optional, not a suggestion, it's giving prerequisite energy 😭

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🔥 RETURN 🔥

Zero on success, otherwise a negative error number. Simple as that, no cap 💖

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/ntb/msi.c
• ntb_msi_init(9)
• ntb_msi_clear_mws(9)
• ntbm_msi_request_threaded_irq(9)
• ntb_msi_peer_trigger(9)

go read those next, iykyk 📚✨

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and that's the whole page, bestie — brought to you from ./drivers/ntb, dated October 2026, from the Kernel API Manual. mwah 💋🦋