ixgbe_cache_ring_dcb(9)

💖 ixgbe_cache_ring_dcb(9) 💖

okay so bestie, welcome to the Kernel API Manual entry for ixgbe_cache_ring_dcb — yes that's a whole mouthful, yes it's from the kernel's ixgbe corner, and yes we're gonna get through it together 🫶

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✨ NAME ✨

ixgbe_cache_ring_dcb — the descriptor ring → register mapping situation for DCB, and honestly it's giving "I just connect things" energy 💅

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🌸 SYNOPSIS 🌸

bool ixgbe_cache_ring_dcb (struct ixgbe_adapter *adapter );

that's it. that's the whole vibe check. one function, one pointer, returns a bool, slay ✨

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🎀 ARGUMENTS 🎀

• adapter — the board private structure you're gonna initialize, bestie. like, hand it over and let it cook 🔥

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🦋 DESCRIPTION 🦋

So what does it do? It caches the descriptor ring offsets for DCB into the rings they've been assigned to. That's the whole plot, no cap. It's a little bookkeeping moment — remember which offsets go where so nothing has to get recalculated later. lowkey iconic, highkey underrated 👑

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💜 SEE ALSO 💜

• Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
• ixgbe_cache_ring_dcb_sriov(9)
• ixgbe_cache_ring_sriov(9)
• ixgbe_cache_ring_rss(9)
• ixgbe_cache_ring_register(9)
• ixgbe_set_dcb_sriov_queues(9)
• ixgbe_set_sriov_queues(9)
• ixgbe_set_rss_queues(9)
• ixgbe_set_num_queues(9)
• ixgbe_acquire_msix_vectors(9)
• ixgbe_alloc_q_vector(9)
• ixgbe_free_q_vector(9)
• ixgbe_alloc_q_vectors(9)
• ixgbe_free_q_vectors(9)
• ixgbe_set_interrupt_capability(9)
• ixgbe_init_interrupt_scheme(9)
• ixgbe_clear_interrupt_scheme(9)

like, the whole friend group fr fr — go read them too 🧚

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and that's the page!! this little cutie came out in October 2026, sourced from the path that starts ./drivers/net/ethernet/intel/i... (the manpage footer keeps it truncated like that, so we keep it truncated too 😭). mwah, go forth and cache those ring offsets 💋💖