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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: David Arinzon <darinzon@amazon.com>
Link: https://patch.msgid.link/20250617110545.5659-5-darinzon@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
pull/1279/head
David Arinzon 2025-06-17 14:05:40 +03:00 committed by Jakub Kicinski
parent 15115b1a25
commit 9d67d534e4
2 changed files with 30 additions and 2 deletions
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31
drivers/net/ethernet/amazon/ena/ena_devlink.c
View File

@ -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);
}

1
drivers/net/ethernet/amazon/ena/ena_netdev.h
View File

@ -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);