.. SPDX-License-Identifier: GPL-2.0
==========================
PCI NTB Endpoint Function
==========================
1) Create a subdirectory to pci_epf_ntb directory in configfs.
Standard EPF Configurable Fields:
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vendorid should be 0x104c
deviceid should be 0xb00d for TI's J721E SoC
revid don't care
progif_code don't care
subclass_code should be 0x00
baseclass_code should be 0x5
cache_line_size don't care
subsys_vendor_id don't care
subsys_id don't care
interrupt_pin don't care
msi_interrupts don't care
msix_interrupts don't care
================ ===========================================================
2) Create a subdirectory to directory created in 1
NTB EPF specific configurable fields:
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db_count Number of doorbells; default = 4
mw1 size of memory window1
mw2 size of memory window2
mw3 size of memory window3
mw4 size of memory window4
num_mws Number of memory windows; max = 4
spad_count Number of scratchpad registers; default = 64
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