STRUCT EFX_MSI_CONTEXT(9)

💅 struct efx_msi_context(9) — like, the Kernel API Manual page bestie 🎀

okay so welcome to the glow-up of the struct efx_msi_context(9) man page, fresh from the Kernel API Manual ✨ we're gonna go through it together, no skipping, i promise 🫶

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✨ NAME ✨

struct efx_msi_context — the context for each MSI, and yes that's the whole vibe 💫

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🌸 SYNOPSIS 🌸

struct efx_msi_context {
    struct efx_nic *efx;
    unsigned int index;
    char name[IFNAMSIZ + 6];
 };

like, look at her. three members. iconic. 👑

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🦋 Members 🦋

• efx — the NIC that goes with it, literally its whole ride-or-die 💖
• index — which channel/IRQ this is, the little number that says "this one's me" 🔢
• name — the name of the channel/IRQ, so it can be addressed by name like the main character it is 🌟

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💀 Description 💀

so here's the tea: unlike struct efx_channel, this thing is never reallocated and it is always safe for the IRQ handler to access. that's it. that's the whole point. it stays put, periodt 💅✨

no cap, that stability is the entire serve.

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🔥 SEE ALSO 🔥

the kernel file is ./drivers/net/ethernet/sfc/siena/net_driver.h — go read her 🧚

and then the whole friend group:

• struct efx_buffer(9)
• struct efx_special_buffer(9)
• struct efx_tx_buffer(9)
• struct efx_tx_queue(9)
• struct efx_rx_buffer(9)
• struct efx_rx_page_state(9)
• struct efx_rx_queue(9)
• struct efx_channel(9)
• struct efx_channel_type(9)
• struct efx_link_state(9)
• enum efx_phy_mode(9)
• struct efx_hw_stat_desc(9)
• struct efx_rss_context(9)
• struct efx_arfs_rule(9)
• struct efx_async_filter_insertion(9)
• struct efx_nic(9)
• struct efx_nic_type(9)

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ngl bestie if you made it this far you're officially a struct stan 💜

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okay byeeee, this was ./drivers/net/ethernet/sfc/siena, dated October 2026 — mwah, slay, go read some kernel headers 💅🌈💖