cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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devlink.c (2017B)

      1// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
      2/* Copyright (c) 2020, Mellanox Technologies inc.  All rights reserved. */
      3
      4#include "en/devlink.h"
      5#include "eswitch.h"
      6
      7static void
      8mlx5e_devlink_get_port_parent_id(struct mlx5_core_dev *dev, struct netdev_phys_item_id *ppid)
      9{
     10	u64 parent_id;
     11
     12	parent_id = mlx5_query_nic_system_image_guid(dev);
     13	ppid->id_len = sizeof(parent_id);
     14	memcpy(ppid->id, &parent_id, sizeof(parent_id));
     15}
     16
     17int mlx5e_devlink_port_register(struct mlx5e_priv *priv)
     18{
     19	struct devlink *devlink = priv_to_devlink(priv->mdev);
     20	struct devlink_port_attrs attrs = {};
     21	struct netdev_phys_item_id ppid = {};
     22	struct devlink_port *dl_port;
     23	unsigned int dl_port_index;
     24
     25	if (mlx5_core_is_pf(priv->mdev)) {
     26		attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
     27		attrs.phys.port_number = mlx5_get_dev_index(priv->mdev);
     28		if (MLX5_ESWITCH_MANAGER(priv->mdev)) {
     29			mlx5e_devlink_get_port_parent_id(priv->mdev, &ppid);
     30			memcpy(attrs.switch_id.id, ppid.id, ppid.id_len);
     31			attrs.switch_id.id_len = ppid.id_len;
     32		}
     33		dl_port_index = mlx5_esw_vport_to_devlink_port_index(priv->mdev,
     34								     MLX5_VPORT_UPLINK);
     35	} else {
     36		attrs.flavour = DEVLINK_PORT_FLAVOUR_VIRTUAL;
     37		dl_port_index = mlx5_esw_vport_to_devlink_port_index(priv->mdev, 0);
     38	}
     39
     40	dl_port = mlx5e_devlink_get_dl_port(priv);
     41	memset(dl_port, 0, sizeof(*dl_port));
     42	devlink_port_attrs_set(dl_port, &attrs);
     43
     44	return devlink_port_register(devlink, dl_port, dl_port_index);
     45}
     46
     47void mlx5e_devlink_port_type_eth_set(struct mlx5e_priv *priv)
     48{
     49	struct devlink_port *dl_port = mlx5e_devlink_get_dl_port(priv);
     50
     51	devlink_port_type_eth_set(dl_port, priv->netdev);
     52}
     53
     54void mlx5e_devlink_port_unregister(struct mlx5e_priv *priv)
     55{
     56	struct devlink_port *dl_port = mlx5e_devlink_get_dl_port(priv);
     57
     58	devlink_port_unregister(dl_port);
     59}
     60
     61struct devlink_port *mlx5e_get_devlink_port(struct net_device *dev)
     62{
     63	struct mlx5e_priv *priv = netdev_priv(dev);
     64
     65	if (!netif_device_present(dev))
     66		return NULL;
     67
     68	return mlx5e_devlink_get_dl_port(priv);
     69}