efx_siena_update_stats(9)

🌸 efx_siena_update_stats 🌸

okay bestie, welcome to the Kernel API Manual 💅 we're doing efx_siena_update_stats(9) today and honestly? it's giving "glow-up for hardware numbers" ✨

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✨ NAME ✨

efx_siena_update_stats — convert a statistics DMA buffer into an array of u64 🦋

like, the raw hardware vibe gets translated into numbers your code can actually read, no cap 💖

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🎀 SYNOPSIS 🎀

void efx_siena_update_stats (const struct efx_hw_stat_desc *desc ,
       size_t count , const unsigned long *mask , u64 *stats , const void
       *dma_buf , bool accumulate );

periodt 💅 that's the whole signature, don't come for me about the line breaks, that's literally how it's written ✨

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💜 ARGUMENTS 💜

okay so here's the whole cast, main character energy each and every one of them 🫶

• desc — an array of struct efx_hw_stat_desc that describes the DMA buffer layout. DMA widths of 0, 16, 32 and 64 are supported 😌 and lowkey important: where the width is specified as 0, the corresponding element of stats is not updated. so it's a little "i'm not touching that one" situation 🙈
• count — the length of the desc array. that's it, that's the whole vibe. just how many are in there 🔥
• mask — a bitmask of which elements of desc are enabled. think of it as the guest list for the function 💅 only the invited ones get processed 👑
• stats — the buffer you're updating with the converted statistics 💖 heads up bestie: the length of this array must be at least count. not a suggestion, that's the rule 🌸
• dma_buf — the DMA buffer containing hardware statistics. this is where the raw numbers live 🦋
• accumulate — if set, the converted values will be added to the corresponding elements of stats rather than directly stored 😌 so it's either "here's your fresh value" or "we're stacking, we're adding to the collection" ✨

ngl, that stats length requirement is not a drill — at least count, always 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/sfc/siena/nic.c
• efx_siena_describe_stats(9)

go read those too, iykyk 💜

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and that's the page, bestie 🎀 this gem comes to you from the kernel source at ./drivers/net/ethernet/sfc/siena, dated October 2026, and it's still efx_siena_update_stats(9) around here 👑 slay 💅✨