ntb_db_vector_count(9)

🎀 ntb_db_vector_count(9) 🎀

okay so welcome to the ntb_db_vector_count(9) page from the Kernel API Manual, bestie. This one is short, sweet, and literally about counting doorbell interrupt vectors. Let's get into it 💅

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✨ NAME ✨

ntb_db_vector_count — get the number of doorbell interrupt vectors

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🌸 SYNOPSIS 🌸

int ntb_db_vector_count (struct ntb_dev *ntb );

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🦋 ARGUMENTS 🦋

• ntb — the NTB device context, periodt. That's the context for the NTB device, and you're passing it in 🫶

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💜 DESCRIPTION 💜

Hardware may support a different number of interrupt vectors — yes, the count can vary, and that's the whole situation here. No cap.

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⭐ RETURN ⭐

It returns the number of doorbell interrupt vectors. That's the return value, bestie — iconic, concise, done ✨

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🔗 SEE ALSO 🔗

Kernel file: ./include/linux/ntb.h

• enum ntb_topo(9)
• enum ntb_speed(9)
• enum ntb_width(9)
• enum ntb_default_port(9)
• struct ntb_client_ops(9)
• struct ntb_ctx_ops(9)
• struct ntb_dev_ops(9)
• struct ntb_client(9)
• struct ntb_dev(9)
• ntb_register_client(9)
• ntb_unregister_client(9)
• ntb_register_device(9)
• ntb_unregister_device(9)
• ntb_set_ctx(9)
• ntb_clear_ctx(9)
• ntb_link_event(9)
• ntb_db_event(9)
• ntb_msg_event(9)
• ntb_default_port_number(9)
• ntb_default_peer_port_count(9)
• ntb_default_peer_port_number(9)
• ntb_default_peer_port_idx(9)
• ntb_port_number(9)
• ntb_peer_port_count(9)
• ntb_peer_port_number(9)
• ntb_logical_port_number(9)
• ntb_peer_logical_port_number(9)
• ntb_peer_port_idx(9)
• ntb_link_is_up(9)
• ntb_link_enable(9)
• ntb_link_disable(9)
• ntb_mw_count(9)
• ntb_mw_get_align(9)
• ntb_mw_set_trans(9)
• ntb_mw_clear_trans(9)
• ntb_peer_mw_count(9)
• ntb_peer_mw_get_addr(9)
• ntb_peer_mw_set_trans(9)
• ntb_peer_mw_clear_trans(9)
• ntb_db_is_unsafe(9)
• ntb_db_valid_mask(9)
• ntb_db_vector_mask(9)
• ntb_db_read(9)
• ntb_db_set(9)
• ntb_db_clear(9)
• ntb_db_read_mask(9)
• ntb_db_set_mask(9)
• ntb_db_clear_mask(9)
• ntb_peer_db_addr(9)
• ntb_peer_db_read(9)
• ntb_peer_db_set(9)
• ntb_peer_db_clear(9)
• ntb_peer_db_read_mask(9)
• ntb_peer_db_set_mask(9)
• ntb_peer_db_clear_mask(9)
• ntb_spad_is_unsafe(9)
• ntb_spad_count(9)
• ntb_spad_read(9)
• ntb_spad_write(9)
• ntb_peer_spad_addr(9)
• ntb_peer_spad_read(9)
• ntb_peer_spad_write(9)
• ntb_msg_count(9)
• ntb_msg_inbits(9)
• ntb_msg_outbits(9)
• ntb_msg_read_sts(9)
• ntb_msg_clear_sts(9)
• ntb_msg_set_mask(9)
• ntb_msg_clear_mask(9)
• ntb_msg_read(9)
• ntb_peer_msg_write(9)
• ntb_get_dma_dev(9)
• ntb_peer_resource_idx(9)
• ntb_peer_highest_mw_idx(9)

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okay that's the whole page, bestie 🫶 this gem comes from ./include/linux, dated October 2026, and it's literally the ntb_db_vector_count(9) page. bye 💖