ixgbe_cache_ring_dcb_sriov(9)

✨ NAME ✨

okay so bestie, this page is ixgbe_cache_ring_dcb_sriov(9) from the Kernel API Manual, and its whole thing is descriptor ring to register mapping for SR-IOV. that's the vibe. periodt. 💅

🌸 SYNOPSIS 🌸

bool ixgbe_cache_ring_dcb_sriov (struct ixgbe_adapter *adapter );

🎀 ARGUMENTS 🎀

• adapter — the board private structure you're initializing, bestie. that's the one. 🫶

🦋 DESCRIPTION 🦋

so what it does is cache the descriptor ring offsets for SR-IOV to the assigned rings. lowkey iconic mapping behavior, ngl. ✨

it will also try to cache the proper offsets if RSS/FCoE are enabled along with VMDq. yes, it's giving "one function, multiple little side quests" energy. 🧚

💅 SEE ALSO 💅

the kernel file to peek at is literally ./drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c, and these are the besties in the same friend group:

• ixgbe_cache_ring_dcb(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)

that's the whole page, bestie 💖 signing off from the source line ./drivers/net/ethernet/intel/i... in October 2026, on the ixgbe_cache_ring_dcb_sriov(9) page. slay. 🫶✨