epf_ntb_teardown_mw(9)

✨ epf_ntb_teardown_mw(9) ✨

okay so bestie, welcome to the epf_ntb_teardown_mw man page — it's a kernel API manual situation, and honestly? iconic. 🎀

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🌸 NAME 🌸

epf_ntb_teardown_mw — the one that tears down the configured OB ATU 💅

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🦋 SYNOPSIS 🦋

void epf_ntb_teardown_mw (struct epf_ntb *ntb , u32 mw );

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✨ ARGUMENTS ✨

• ntb — the NTB device that facilitates communication between HOST and VHOST 🫶
• mw — the index of the memory window, and it can be either 0, 1, 2 or 3. pick your fighter, no cap.

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💖 DESCRIPTION 💖

So like, this function tears down the configured OB ATU — the very same one that got configured in epf_ntb_configure_mw — by using pci_epc_unmap_addr. literally that's the whole vibe. it undoes the thing, using that function, periodt. 🔥

ngl, if you were hoping for extra lore here, there isn't any — the whole description is just: teardown the configured OB ATU configured in epf_ntb_configure_mw using pci_epc_unmap_addr. iykyk. 💀

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👑 SEE ALSO 👑

Kernel file ./drivers/pci/endpoint/functions/pci-epf-vntb.c 🌈

• epf_ntb_link_up(9)
• epf_ntb_configure_mw(9)
• epf_ntb_cmd_handler(9)
• epf_ntb_config_sspad_bar_clear(9)
• epf_ntb_config_sspad_bar_set(9)
• epf_ntb_config_spad_bar_free(9)
• epf_ntb_config_spad_bar_alloc(9)
• epf_ntb_configure_interrupt(9)
• epf_ntb_db_bar_init(9)
• epf_ntb_db_bar_clear(9)
• epf_ntb_mw_bar_init(9)
• epf_ntb_mw_bar_clear(9)
• epf_ntb_is_bar_used(9)
• epf_ntb_find_bar(9)
• epf_ntb_init_epc_bar(9)
• epf_ntb_epc_init(9)
• epf_ntb_epc_cleanup(9)
• epf_ntb_add_cfs(9)
• epf_ntb_bind(9)
• epf_ntb_unbind(9)
• epf_ntb_probe(9)

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that's the whole page bestie, stay hydrated 🍓

source directory: ./drivers/pci/endpoint/functions — dated October 2026 — epf_ntb_teardown_mw(9) 💜✨ bye diva 🧚