ENUM DCBNL_ATTRS(9)

✨ enum dcbnl_attrs(9) ✨

okay so bestie, welcome to the enum dcbnl_attrs page from the Kernel API Manual 💅 this is the DCB top-level netlink attributes enum and honestly it's giving "networking homework but make it cute" 🎀

🌸 NAME 🌸

enum dcbnl_attrs — DCB top-level netlink attributes 💖

🦋 SYNOPSIS 🦋

enum dcbnl_attrs {
    DCB_ATTR_UNDEFINED ,
    DCB_ATTR_IFNAME ,
    DCB_ATTR_STATE ,
    DCB_ATTR_PFC_STATE ,
    DCB_ATTR_PFC_CFG ,
    DCB_ATTR_NUM_TC ,
    DCB_ATTR_PG_CFG ,
    DCB_ATTR_SET_ALL ,
    DCB_ATTR_PERM_HWADDR ,
    DCB_ATTR_CAP ,
    DCB_ATTR_NUMTCS ,
    DCB_ATTR_BCN ,
    DCB_ATTR_APP ,
    DCB_ATTR_IEEE ,
    DCB_ATTR_DCBX ,
    DCB_ATTR_FEATCFG ,
    DCB_ATTR_CEE ,
    __DCB_ATTR_ENUM_MAX ,
    DCB_ATTR_MAX

};

💜 Constants 💜

no skipping, we're doing all of them, mwah 😘

• DCB_ATTR_UNDEFINED — the unspecified attribute whose whole job is catching errors 🚨 literally the safety net of this enum.
• DCB_ATTR_IFNAME — interface name of the underlying device (NLA_STRING) 🏷️
• DCB_ATTR_STATE — enable state of DCB in the device (NLA_U8) ✨
• DCB_ATTR_PFC_STATE — enable state of PFC in the device (NLA_U8) 🎀
• DCB_ATTR_PFC_CFG — priority flow control configuration (NLA_NESTED) 🫶
• DCB_ATTR_NUM_TC — number of traffic classes supported in the device (NLA_U8) 🔢
• DCB_ATTR_PG_CFG — priority group configuration (NLA_NESTED) 🌸
• DCB_ATTR_SET_ALL — bool to commit changes to hardware or not (NLA_U8) 💀 yes bestie, "or not" is doing a lot of work there.
• DCB_ATTR_PERM_HWADDR — MAC address of the physical device (NLA_NESTED) 🧚
• DCB_ATTR_CAP — DCB capabilities of the device (NLA_NESTED) 🔥
• DCB_ATTR_NUMTCS — number of traffic classes supported (NLA_NESTED) ⭐
• DCB_ATTR_BCN — backward congestion notification configuration (NLA_NESTED) 🌈
• DCB_ATTR_APP — -- undescribed -- 🙈 the manpage itself has no lore for this one, and I refuse to make any up. enigmatic main character energy.
• DCB_ATTR_IEEE — IEEE 802.1Qaz supported attributes (NLA_NESTED) 👑
• DCB_ATTR_DCBX — DCBX engine configuration in the device (NLA_U8) 🦋
• DCB_ATTR_FEATCFG — DCBX features flags (NLA_NESTED) 🍓
• DCB_ATTR_CEE — CEE std supported attributes (NLA_NESTED) 💜
• __DCB_ATTR_ENUM_MAX — -- undescribed -- 🫥 also undescribed, also iconic for it.
• DCB_ATTR_MAX — -- undescribed -- 😭 same deal, no description, no cap.

🌟 SEE ALSO 🌟

Kernel file ./include/uapi/linux/dcbnl.h, plus the whole friend group: struct cee_pg(9), struct cee_pfc(9), struct dcb_peer_app_info(9), enum dcbnl_commands(9), enum ieee_attrs(9), enum cee_attrs(9), enum dcbnl_pg_attrs(9), enum dcbnl_tc_attrs(9), enum dcbnl_cap_attrs(9), enum dcbnl_numtcs_attrs(9), enum dcb_general_attr_values(9) 💖 go read them, iykyk.

ok that's the whole page, go forth and configure DCB responsibly 🫡💅

and that's a wrap bestie 🌸 this one lives in ./include/uapi/linux, dated October 2026 ⭐ mwah, go slay your netlink attributes 🎀💖