Commit 9d67d534 authored by David Arinzon's avatar David Arinzon Committed by Jakub Kicinski
Browse files

net: ena: Add devlink port support 



Add the basic functionality to support devlink port
for devlink model completeness purposes.
Current support is for registration/un-registration.

Signed-off-by: default avatarDavid Arinzon <darinzon@amazon.com>
Link: https://patch.msgid.link/20250617110545.5659-5-darinzon@amazon.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 15115b1a

drivers/net/ethernet/amazon/ena/ena_devlink.c

+29 −2
Original line number Diff line number Diff line
@@ -6,6 +6,23 @@ 
#include "linux/pci.h"

#include "ena_devlink.h"



static void ena_devlink_port_register(struct devlink *devlink)

{

	struct ena_adapter *adapter = ENA_DEVLINK_PRIV(devlink);

	struct devlink_port_attrs attrs = {};



	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;

	devlink_port_attrs_set(&adapter->devlink_port, &attrs);

	devl_port_register(devlink, &adapter->devlink_port, 0);

}



static void ena_devlink_port_unregister(struct devlink *devlink)

{

	struct ena_adapter *adapter = ENA_DEVLINK_PRIV(devlink);



	devl_port_unregister(&adapter->devlink_port);

}



static int ena_devlink_reload_down(struct devlink *devlink,

				   bool netns_change,

				   enum devlink_reload_action action,
@@ -20,6 +37,8 @@ static int ena_devlink_reload_down(struct devlink *devlink, 
		return -EOPNOTSUPP;

	}



	ena_devlink_port_unregister(devlink);



	rtnl_lock();

	ena_destroy_device(adapter, false);

	rtnl_unlock();
@@ -46,6 +65,8 @@ static int ena_devlink_reload_up(struct devlink *devlink, 


	rtnl_unlock();



	ena_devlink_port_register(devlink);



	if (!err)

		*actions_performed = BIT(DEVLINK_RELOAD_ACTION_DRIVER_REINIT);
@@ -85,10 +106,16 @@ void ena_devlink_free(struct devlink *devlink) 


void ena_devlink_register(struct devlink *devlink, struct device *dev)

{

	devlink_register(devlink);

	devl_lock(devlink);

	ena_devlink_port_register(devlink);

	devl_register(devlink);

	devl_unlock(devlink);

}



void ena_devlink_unregister(struct devlink *devlink)

{

	devlink_unregister(devlink);

	devl_lock(devlink);

	ena_devlink_port_unregister(devlink);

	devl_unregister(devlink);

	devl_unlock(devlink);

}

drivers/net/ethernet/amazon/ena/ena_netdev.h

+1 −0
Original line number Diff line number Diff line
@@ -390,6 +390,7 @@ struct ena_adapter { 
	u32 xdp_num_queues;



	struct devlink *devlink;

	struct devlink_port devlink_port;

};



void ena_set_ethtool_ops(struct net_device *netdev);