ef4_nic_update_stats(9)

💖 ef4_nic_update_stats — like, the manual page 💖

okay so bestie, welcome to ef4_nic_update_stats(9), straight out of the Kernel API Manual ✨ this one's a little function with a big job, and honestly? she ate.

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🌸 NAME 🌸

ef4_nic_update_stats — converts a statistics DMA buffer into an array of u64. that's it, that's the whole vibe. a glow-up from raw DMA bytes to actual numbers you can read 💅

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🦋 SYNOPSIS 🦋

void ef4_nic_update_stats (const struct ef4_hw_stat_desc *desc , size_t
count , const unsigned long *mask , u64 *stats , const void *dma_buf ,
bool accumulate );

like, six whole arguments. she's high-maintenance but worth it, i promise 🫶

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🎀 ARGUMENTS 🎀

• desc — an array of struct ef4_hw_stat_desc that describes how the DMA buffer is laid out. DMA widths of 0, 16, 32 and 64 are supported — and here's the slay detail: when the width is specified as 0, the corresponding element of stats is not updated. not me ghosting that element 🙈
• count — the length of the desc array. keep count, bestie 📋
• mask — a bitmask of which elements of desc are enabled. think of it as the guest list — if you're not on it, you're not getting in 💅
• stats — the buffer you're updating with the converted statistics. the length of this array must be at least count — no cap, if it's shorter you're gonna have a bad time 😭
• dma_buf — the DMA buffer containing the hardware statistics. the raw material, the unedited footage, the before pic 🎬
• accumulate — if set, the converted values get added to the corresponding elements of stats rather than directly stored. it's giving "keep the receipts and stack them" 🔥 if it's not set, it just overwrites. simple as that.

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/net/ethernet/sfc/falcon/nic.c — go read the source, iykyk 👑
• ef4_nic_describe_stats(9) — her sister page, equally iconic 🌈

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okay real talk: stats needs to be at least count long, and width-0 entries get skipped entirely. don't come for me if you ignore that, i literally told you 💀

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and that's the whole page!! mwah 💋 this one came from the ./drivers/net/ethernet/sfc/falcon crew, dated October 2026, and it's ef4_nic_update_stats(9) forever and always 🧚✨ bye bestie, go convert some stats 💖