mlx5hws_matcher_attach_at(9)

💖 mlx5hws_matcher_attach_at 💖

okay so bestie, welcome to the Kernel API Manual, section 9 — this is the page for mlx5hws_matcher_attach_at(9) and honestly it's a little one, but it's a mighty one. it does exactly one thing and it does it slayfully 🫶

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✨ NAME ✨

mlx5hws_matcher_attach_at — attach a new action template to a direct rule matcher. that's it. that's the whole gig 💅

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🌸 SYNOPSIS 🌸

int mlx5hws_matcher_attach_at (struct mlx5hws_matcher *matcher , struct
mlx5hws_action_template *at );

like, look at her. returns an int, takes two pointers, no drama, no cap 💀

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🎀 ARGUMENTS 🎀

• matcher — the matcher you're attaching the action template to. she's the main character here, the one getting the glow-up 👑
• at — the action template being attached to the matcher. she's the accessory that makes the whole fit work ✨

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🦋 RETURN 🦋

Zero on success, non-zero otherwise. so like — 0 is the good ending, anything else means something went sideways and you should go check 😭

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🔥 SEE ALSO 🔥

the kernel file lives here, and yes you will be reading it:

./drivers/net/ethernet/mellanox/mlx5/core/steering/hws/mlx5hws.h

and now the whole friend group, because this function literally refuses to be seen without her entourage 😌💜

• mlx5hws_is_supported(9), mlx5hws_context_open(9), mlx5hws_context_close(9), mlx5hws_context_set_peer(9)
• mlx5hws_table_create(9), mlx5hws_table_destroy(9), mlx5hws_table_get_id(9), mlx5hws_table_set_default_miss(9)
• mlx5hws_match_template_create(9), mlx5hws_match_template_destroy(9)
• mlx5hws_action_template_create(9), mlx5hws_action_template_destroy(9)
• mlx5hws_matcher_create(9), mlx5hws_matcher_destroy(9), mlx5hws_matcher_resize_set_target(9), mlx5hws_matcher_resize_rule_move(9)
• mlx5hws_rule_create(9), mlx5hws_rule_destroy(9), mlx5hws_rule_action_update(9)
• mlx5hws_action_get_type(9), mlx5hws_action_get_dev(9)
• mlx5hws_action_create_dest_drop(9), mlx5hws_action_create_default_miss(9), mlx5hws_action_create_dest_table(9), mlx5hws_action_create_dest_table_num(9), mlx5hws_action_create_dest_match_range(9), mlx5hws_action_create_flow_sampler(9), mlx5hws_action_create_dest_vport(9)
• mlx5hws_action_create_tag(9), mlx5hws_action_create_counter(9), mlx5hws_action_create_reformat(9), mlx5hws_action_create_modify_header(9), mlx5hws_action_create_aso_meter(9), mlx5hws_action_create_pop_vlan(9), mlx5hws_action_create_push_vlan(9), mlx5hws_action_create_dest_array(9), mlx5hws_action_create_insert_header(9), mlx5hws_action_create_remove_header(9), mlx5hws_action_create_last(9)
• mlx5hws_action_destroy(9), mlx5hws_send_queue_poll(9), mlx5hws_send_queue_action(9), mlx5hws_debug_dump(9)
• mlx5hws_bwc_matcher_create(9), mlx5hws_bwc_matcher_destroy(9), mlx5hws_bwc_rule_create(9), mlx5hws_bwc_rule_destroy(9), mlx5hws_bwc_rule_action_update(9)

ngl that's a long see-also list for a two-argument function, but she's connected, she knows people, iykyk 💅

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and that's the whole page, bestie!! 🧚‍♀️

cute lil sign-off before you go: this one's sourced from the kernel tree at ./drivers/net/ethernet/mellano... — yeah it's literally clipped mid-word like that in the source, don't come for me 🙈 — and it's dated October 2026, still stamped mlx5hws_matcher_attach_at(9) at the bottom because she never forgets her name ⭐🍓