t4vf_free_mac_filt(9)

💅 t4vf_free_mac_filt(9) — like, the kernel API manual, bestie 🎀

okay so we're deep in the kernel API manual today and the star of the show is t4vf_free_mac_filt ✨ she's a little function with one job and she does it fine.

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🌸 NAME 🌸

t4vf_free_mac_filt — frees exact-match filters of given MAC addresses 🫶

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✨ SYNOPSIS ✨

int t4vf_free_mac_filt (struct adapter *adapter , unsigned int viid ,
       unsigned int naddr , const u8 **addr , bool sleep_ok );

like. look at her. five params, one int. iconic behavior honestly 💅

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🎀 ARGUMENTS 🎀

• adapter — the adapter, aka the whole entire vibe provider for this call 🖥️
• viid — the VI id 🔢
• naddr — the number of MAC addresses to allocate filters for (up to 7) 👀 yes bestie, 7 is the ceiling, don't push it
• addr — the MAC address(es) 📮
• sleep_ok — call is allowed to sleep 😴 like, it has permission

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🦋 DESCRIPTION 🦋

Frees the exact-match filter for each of the supplied addresses. one by one, no cap. 🧹✨

Returns a negative error number or the number of filters freed. so like, either it went badly (negative, sad, 😭) or it tells you how many it freed (a little win, we love a little win 🌈).

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💜 SEE ALSO 💜

Kernel file ./drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c — go read the source, iykyk 📖

and the whole friend group, in order, no one gets left out:

• t4vf_record_mbox(9)
• t4vf_wr_mbox_core(9)
• fwcaps16_to_caps32(9)
• fwcap_to_fwspeed(9)
• t4vf_port_init(9)
• t4vf_fw_reset(9)
• t4vf_query_params(9)
• t4vf_set_params(9)
• t4vf_fl_pkt_align(9)
• t4vf_bar2_sge_qregs(9)
• t4vf_get_sge_params(9)
• t4vf_get_vpd_params(9)
• t4vf_get_dev_params(9)
• t4vf_get_rss_glb_config(9)
• t4vf_get_vfres(9)
• t4vf_read_rss_vi_config(9)
• t4vf_write_rss_vi_config(9)
• t4vf_config_rss_range(9)
• t4vf_alloc_vi(9)
• t4vf_free_vi(9)
• t4vf_enable_vi(9)
• t4vf_enable_pi(9)
• t4vf_identify_port(9)
• t4vf_set_rxmode(9)
• t4vf_alloc_mac_filt(9)
• t4vf_change_mac(9)
• t4vf_set_addr_hash(9)
• t4vf_get_port_stats(9)
• t4vf_iq_free(9)
• t4vf_eth_eq_free(9)
• t4vf_link_down_rc_str(9)
• t4vf_handle_get_port_info(9)
• t4vf_update_port_info(9)
• t4vf_handle_fw_rpl(9)
• t4vf_get_vf_mac_acl(9)
• t4vf_get_vf_vlan_acl(9)

like, that's the whole group chat right there 💀💖

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fr fr: the free-est thing you can do is free some filters. slay. 🌟

anyway, this page came from ./drivers/net/ethernet/chelsio... and it's dated October 2026, and the page itself is t4vf_free_mac_filt(9) — mwah, love that for us 👑🌸 bye bestie!!