cxgb4_smt_alloc_switching(9)

💅 cxgb4_smt_alloc_switching — a Kernel API Manual moment

okay bestie, so this one's from the Kernel API Manual and it's lowkey a little legend: cxgb4_smt_alloc_switching(9). tiny page, big "i'm the one who grabs the SMT entry" energy ✨

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🌸 NAME 🌸

cxgb4_smt_alloc_switching — literally just allocates an SMT entry for switch filters. that's the whole job. she's focused. she's iconic. periodt 💅

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🦋 SYNOPSIS 🦋

struct smt_entry * cxgb4_smt_alloc_switching (struct net_device *dev ,
u8 *smac );

yes the signature is exactly that, line break and all — copy it verbatim or the compiler will simply not hear you 🙈

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🎀 ARGUMENTS 🎀

• dev — a net_device pointer. your netdev bestie. 🫶
• smac — MAC address to add to SMT. and listen, the original page tacks one more thing onto this very same line: it returns a pointer to the SMT entry created. so that's the return value, no cap — a struct smt_entry * landing right in your hands when it works out 💖

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⭐ DESCRIPTION ⭐

Allocates an SMT entry that's meant to be used by the switching rule of a filter. that's it, that's the vibe check — she makes the entry, the switching rule of a filter does the rest. main character energy for real 🔥

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ethernet/chelsio/cxgb4/smt.c — go read the source, iykyk 👑
• cxgb4_smt_release(9) — the counterpart, because everything you allocate you eventually have to let go of 😭 (that's not me making claims, that's just literally the next page in the manual, bestie)

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ngl this page is smol but she ate. every flag, every pointer, every path — all here, nothing skipped, fr fr 🍓

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and that's the whole thing! cute little sign-off for you: this page comes from ./drivers/net/ethernet/chelsio..., dated October 2026, and it goes by cxgb4_smt_alloc_switching(9) — mwah, mwah, slay, bye 💜🧚‍♀️