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Commit 3a401a2c authored by Kishon Vijay Abraham I's avatar Kishon Vijay Abraham I Committed by Bjorn Helgaas
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PCI: endpoint: Create configfs entry for EPC device and EPF driver 



Invoke APIs provided by pci-ep-cfs to create configfs entry for every EPC
device and EPF driver to help users in creating EPF device and binding the
EPF device to the EPC device.

Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent bea37d3d

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

+4 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 


#include <linux/pci-epc.h>

#include <linux/pci-epf.h>

#include <linux/pci-ep-cfs.h>



static struct class *pci_epc_class;
@@ -442,6 +443,7 @@ EXPORT_SYMBOL_GPL(pci_epc_linkup); 
 */

void pci_epc_destroy(struct pci_epc *epc)

{

	pci_ep_cfs_remove_epc_group(epc->group);

	device_unregister(&epc->dev);

	kfree(epc);

}
@@ -508,6 +510,8 @@ __pci_epc_create(struct device *dev, const struct pci_epc_ops *ops, 
	if (ret)

		goto put_dev;



	epc->group = pci_ep_cfs_add_epc_group(dev_name(dev));



	return epc;



put_dev:

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

+4 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ 


#include <linux/pci-epc.h>

#include <linux/pci-epf.h>

#include <linux/pci-ep-cfs.h>



static struct bus_type pci_epf_bus_type;

static struct device_type pci_epf_type;
@@ -149,6 +150,7 @@ EXPORT_SYMBOL_GPL(pci_epf_alloc_space); 
 */

void pci_epf_unregister_driver(struct pci_epf_driver *driver)

{

	pci_ep_cfs_remove_epf_group(driver->group);

	driver_unregister(&driver->driver);

}

EXPORT_SYMBOL_GPL(pci_epf_unregister_driver);
@@ -178,6 +180,8 @@ int __pci_epf_register_driver(struct pci_epf_driver *driver, 
	if (ret)

		return ret;



	driver->group = pci_ep_cfs_add_epf_group(driver->driver.name);



	return 0;

}

EXPORT_SYMBOL_GPL(__pci_epf_register_driver);

include/linux/pci-epc.h

+2 −0
Original line number Diff line number Diff line
@@ -77,6 +77,7 @@ struct pci_epc_mem { 
 * @ops: function pointers for performing endpoint operations

 * @mem: address space of the endpoint controller

 * @max_functions: max number of functions that can be configured in this EPC

 * @group: configfs group representing the PCI EPC device

 * @lock: spinlock to protect pci_epc ops

 */

struct pci_epc {
@@ -85,6 +86,7 @@ struct pci_epc { 
	const struct pci_epc_ops	*ops;

	struct pci_epc_mem		*mem;

	u8				max_functions;

	struct config_group		*group;

	/* spinlock to protect against concurrent access of EP controller */

	spinlock_t			lock;

};

include/linux/pci-epf.h

+2 −0
Original line number Diff line number Diff line
@@ -82,6 +82,7 @@ struct pci_epf_ops { 
 * @driver: PCI EPF driver

 * @ops: set of function pointers for performing EPF operations

 * @owner: the owner of the module that registers the PCI EPF driver

 * @group: configfs group corresponding to the PCI EPF driver

 * @id_table: identifies EPF devices for probing

 */

struct pci_epf_driver {
@@ -91,6 +92,7 @@ struct pci_epf_driver { 
	struct device_driver	driver;

	struct pci_epf_ops	*ops;

	struct module		*owner;

	struct config_group	*group;

	const struct pci_epf_device_id	*id_table;

};