ntb_default_..._port_number(9)

okay so bestie 💖 this is the ntb_default_..._port_number(9) page from the Kernel API Manual, and it’s literally all about one tiny function: ntb_default_peer_port_number. iykyk. ✨

📛 NAME 📛

ntb_default_peer_port_number — get the default peer port by given index 🎀

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✨ SYNOPSIS ✨

int ntb_default_peer_port_number (struct ntb_dev *ntb , int pidx );

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🎀 ARGUMENTS 🎀

• ntb — NTB device context. like, the device vibe you’re working with 🫶
• pidx — Peer port index (should not differ from zero). zero vibes only, bestie 😌

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💅 DESCRIPTION 💅

By default, the hardware driver supports just one peer device, so this method shall return the corresponding value from enum ntb_default_port. slay, one peer, one little default situation 💫

⚠️ NOTE — Don’t call this method directly. The ntb_peer_port_number function should be used instead. like, seriously, use the wrapper, bestie 😭

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🔥 RETURN 🔥

the peer device port or negative value indicating an error 😭 yes, negative means error, no cap.

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🦋 SEE ALSO 🦋

okay these are the linked besties, all of them, no skipping 👑:

• 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_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_count(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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mwah 💋 that’s the whole page. source/version: ./include/linux; date: October 2026; title: ntb_default_..._port_number(9). byeeee 🫶✨