ice_sriov_se...ix_vec_count(9)

🌸 ice_sriov_set_msix_vec_count(9) — the Kernel API Manual glow-up 🌸

okay so bestie, you found a real one from the Kernel API Manual — this is the page for ice_sriov_set_msix_vec_count(9), and honestly? it's giving "I control the interrupts" main character energy. let's get into it 💅

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✨ NAME ✨

ice_sriov_set_msix_vec_count — that's it, that's the whole name (the original page doesn't add a description line, so we're not inventing one, periodt 🎀)

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🦋 SYNOPSIS 🦋

int ice_sriov_set_msix_vec_count (struct pci_dev *vf_dev , int
msix_vec_count );

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💖 ARGUMENTS 💖

• vf_dev — a pointer to the pci_dev struct of the VF device 👑 like, this is the actual virtual function we're messing with.
• msix_vec_count — the new value for the MSI-X amount on this VF ✨ no cap, this is the number you're setting.

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🌈 DESCRIPTION 🌈

so basically what this does is: set the requested MSI-X, queues and registers for vf_dev. that's the whole mission 🫶

first up it does some sanity checks — like, are there even any VFs? is the new value actually correct? etc. 💀 gotta vibe check the inputs before touching anything, obviously.

then it disables the old mapping (that's the MSI-X and queues registers), changes the MSI-X and queues, rebuilds the VSI, and enables the new mapping. slay, full makeover 🔥

and if it's possible — specifically, if the driver is not binded to the VF — it also tries to remap the other VFs too, so the irqs register usage gets linearized. teamwork makes the dream work fr fr 🌸

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⭐ SEE ALSO ⭐

the kernel file lives at ./drivers/net/ethernet/intel/ice/ice_sriov.c — that's the source, bestie, go read it iykyk 📖

and now, the iconic supporting cast, in the exact order the page gives them:

• ice_free_vf_entries(9)
• ice_free_vf_res(9)
• ice_dis_vf_mappings(9)
• ice_free_vfs(9)
• ice_vf_vsi_setup(9)
• ice_ena_vf_msix_mappings(9)
• ice_ena_vf_q_mappings(9)
• ice_ena_vf_mappings(9)
• ice_calc_vf_reg_idx(9)
• ice_set_per_vf_res(9)
• ice_init_vf_vsi_res(9)
• ice_start_vfs(9)
• ice_sriov_free_vf(9)
• ice_sriov_clear_reset_state(9)
• ice_sriov_clear_mbx_register(9)
• ice_sriov_trigger_reset_register(9)
• ice_sriov_poll_reset_status(9)
• ice_sriov_clear_reset_trigger(9)
• ice_sriov_post_vsi_rebuild(9)
• ice_create_vf_entries(9)
• ice_ena_vfs(9)
• ice_pci_sriov_ena(9)
• ice_check_sriov_allowed(9)
• ice_sriov_get_vf_total_msix(9)
• ice_sriov_configure(9)
• ice_process_vflr_event(9)
• ice_get_vf_from_pfq(9)
• ice_globalq_to_pfq(9)
• ice_vf_lan_overflow_event(9)
• ice_set_vf_spoofchk(9)
• ice_get_vf_cfg(9)
• __ice_set_vf_mac(9)
• ice_set_vf_mac(9)
• ice_setup_vf_trust(9)
• ice_set_vf_trust(9)
• ice_set_vf_link_state(9)
• ice_calc_all_vfs_min_tx_rate(9)
• ice_min_tx_rate_oversubscribed(9)
• ice_set_vf_bw(9)
• ice_get_vf_stats(9)
• ice_is_supported_port_vlan_proto(9)
• ice_set_vf_port_vlan(9)
• ice_print_vf_rx_mdd_event(9)
• ice_print_vf_tx_mdd_event(9)
• ice_print_vfs_mdd_events(9)
• ice_restore_all_vfs_msi_state(9)

like, that's a whole friend group 💜

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and that's the page, bestie! 🎀 source: ./drivers/net/ethernet/intel/ice, dated October 2026, and the whole thing signs off as ice_sriov_se...ix_vec_count(9) — the abbreviate-y-est title ever, honestly iconic 🙈💅