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: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 7c71dd9..caa7be1 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -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 @@
*/
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 @@
if (ret)
goto put_dev;
+ epc->group = pci_ep_cfs_add_epc_group(dev_name(dev));
+
return epc;
put_dev:
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c
index a281c59..6877d6a 100644
--- a/drivers/pci/endpoint/pci-epf-core.c
+++ b/drivers/pci/endpoint/pci-epf-core.c
@@ -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 @@
*/
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 @@
if (ret)
return ret;
+ driver->group = pci_ep_cfs_add_epf_group(driver->driver.name);
+
return 0;
}
EXPORT_SYMBOL_GPL(__pci_epf_register_driver);
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index 8c63d3c..af5edbf 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -77,6 +77,7 @@
* @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 @@
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;
};
diff --git a/include/linux/pci-epf.h b/include/linux/pci-epf.h
index 5628714..0d529cb 100644
--- a/include/linux/pci-epf.h
+++ b/include/linux/pci-epf.h
@@ -82,6 +82,7 @@
* @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 device_driver driver;
struct pci_epf_ops *ops;
struct module *owner;
+ struct config_group *group;
const struct pci_epf_device_id *id_table;
};