qed_int_register_cb(9)

💖 qed_int_register_cb — the kernel api manual, bestie edition ✨

okay so we're looking at qed_int_register_cb(9) today, straight out of the Kernel API Manual, and honestly? it's a whole vibe. it's the "hey bestie, ping me when the slowhwfn statusblock does something" function. very main character, very lowkey essential 🫶

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✨ NAME ✨

qed_int_register_cb — register a callback func for the slowhwfn statusblock 💅

like, you're literally handing the kernel a little "call me when stuff happens" note. iconic behavior.

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🌸 SYNOPSIS 🌸

int qed_int_register_cb (struct qed_hwfn *p_hwfn , qed_int_comp_cb_t
comp_cb , void *cookie , u8 *sb_idx , __le16 **p_fw_cons );

that's the whole signature, character for character, no cap. five things go in, an int comes out, we move 🦋

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🎀 ARGUMENTS 🎀

• p_hwfn — the HW device data. this is the hardware's whole personality basically, everything you need to know about the device lives here 💜
• comp_cb — the function to be called when there's an interrupt on the sp sb. yes, "sp sb." that's the name. we don't question it, we just respect it ✨
• cookie — passed to the callback function. it's a little treat you hand over so your callback has context later. very "here's my number, text me" energy 🍓
• sb_idx — an (OUT) parameter that gives you the chosen index for this protocol 👑 like the function is handing you back your seat assignment.
• p_fw_cons — pointer to the actual address of the consumer for this protocol. actual address. not a vibe, an address. the real thing 🔥

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💫 RETURN 💫

Int. — that's it, that's the return. an int. short king behavior, honestly 😭

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🧚 DESCRIPTION 🧚

so here's the tea: every protocol that uses the slowhwfn status block should register a callback function. that callback gets called once there's an update of the sp status block. periodt. that's the entire contract 💖

like, no callback = no gossip = you never find out the status block updated. so register one. slay.

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🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/net/ethernet/qlogic/qed/qed_int.h — go say hi to it 💅

and here's the whole friend group, every single one of them, in order:

• qed_int_igu_enable_int(9)
• qed_int_igu_disable_int(9)
• qed_int_igu_read_sisr_reg(9)
• qed_int_sb_init(9)
• qed_int_sb_setup(9)
• qed_int_sb_release(9)
• qed_int_sp_dpc(9)
• qed_int_get_num_sbs(9)
• qed_int_disable_post_isr_release(9)
• qed_int_attn_clr_enable(9)
• qed_int_get_sb_dbg(9)
• qed_db_rec_handler(9)
• qed_int_igu_reset_cam(9)
• qed_get_igu_sb_id(9)
• qed_get_igu_free_sb(9)
• qed_int_igu_read_cam(9)
• qed_int_unregister_cb(9)
• qed_int_get_sp_sb_id(9)
• qed_int_igu_init_pure_rt_single(9)
• qed_int_cau_conf_sb(9)
• qed_int_alloc(9)
• qed_int_free(9)
• qed_int_setup(9)
• qed_int_igu_enable(9)
• qed_init_cau_sb_entry(9)

like an entire gc of interrupt-related icons, and every single one of them is invited 💀✨

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ngl if you skip registering a callback for your slowhwfn status block protocol, you're literally leaving the group chat. don't do that 🥺

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and that's the page, bestie! 🎀 this one came from ./drivers/net/ethernet/qlogic/qed — october 2026 edition, qed_int_register_cb(9), and it ate. mwah 💋🫶