PCI: endpoint: Add support to associate secondary EPC with EPF

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In the case of standard endpoint functions, only one endpoint controller
(EPC) will be associated with an endpoint function (EPF). However for
providing NTB (non transparent bridge) functionality, two EPCs should be
associated with a single EPF.  Add support to associate secondary EPC with
EPF. This is in preparation for adding NTB endpoint function driver.

Link: https://lore.kernel.org/r/20210201195809.7342-7-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

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Kishon Vijay Abraham I 2021-02-02 01:27:58 +05:30 • committed by Bjorn Helgaas

parent 7e5a51ebb3

commit 63840ff532

6 changed files with 125 additions and 38 deletions

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11

drivers/pci/endpoint/functions/pci-epf-test.c

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6

drivers/pci/endpoint/pci-ep-cfs.c

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47

drivers/pci/endpoint/pci-epc-core.c

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57

drivers/pci/endpoint/pci-epf-core.c

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25

include/linux/pci-epc.h

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17

include/linux/pci-epf.h

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