t4vf_record_mbox(9)

💌 t4vf_record_mbox(9) — like, the Kernel API Manual page you actually want to read 🎀

okay bestie, sit down, hydrate, and let me tell you about t4vf_record_mbox — it's a little function from the Kernel API Manual and honestly it does exactly one job and does it slayfully. ✨

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🌸 NAME 🌸

t4vf_record_mbox — record a Firmware Mailbox Command/Reply in the log 💅

that's it. that's the whole personality. it writes the mailbox stuff down so future-you can look back and go "ohhh THAT's what happened." iconic archival behavior, no cap. 🗂️

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🦋 SYNOPSIS 🦋

void t4vf_record_mbox (struct adapter *adapter , const __be64 *cmd , int
size , int access , int execute );

look at that signature. five whole arguments. she's got range. 💜

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✨ ARGUMENTS ✨

• adapter — the adapter 🫶 like, the actual network adapter we're talking about here. the main character of the story.
• cmd — the Firmware Mailbox Command or Reply 📨 the actual message being logged, bestie. could be going out, could be coming back — either way it's getting written down.
• size — command length in bytes 📏 how many bytes of cmd we're dealing with. know your size, respect your size.
• access — the time (ms) needed to access the Firmware Mailbox ⏱️ measured in milliseconds. yes, milliseconds. she's precise.
• execute — the time (ms) the command spent being executed ⌛ also milliseconds. also important. we're timing EVERYTHING, respectfully.

tiny heads-up: access and execute are both in milliseconds — don't come for me if you mix up your units, I'm just the messenger 💀

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🔥 SEE ALSO 🔥

the friend group 🫶 — these all live in the kernel file ./drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c, so go say hi:

• ./drivers/net/ethernet/chelsio/cxgb4vf/t4vf_hw.c 📁 (the kernel file, the home base, the address)
• 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_free_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 I said. big friend group. all of them relevant. all of them worth a read. go wild. 🌈

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anyway that's the whole page, mwah 💋 this little writeup came from ./drivers/net/ethernet/chelsio... and it's dated October 2026 — so yes, the lore is current, and yes, t4vf_record_mbox(9) is still out here logging mailboxes like the queen she is. 👑🌸💖