Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4b89251d authored by Huy Nguyen's avatar Huy Nguyen Committed by Saeed Mahameed
Browse files

net/mlx5: Support ndo bridge_setlink and getlink 



Allow enabling VEPA mode on the HCA's port in legacy devlink mode.

Example:
bridge link set dev ens1f0 hwmode vepa
will turn on VEPA mode on the netdev ens1f0.

Signed-off-by: default avatarHuy Nguyen <huyn@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
parent 8da202b2

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

+59 −0
Original line number Diff line number Diff line
@@ -35,6 +35,7 @@ 
#include <linux/mlx5/fs.h>

#include <net/vxlan.h>

#include <linux/bpf.h>

#include <linux/if_bridge.h>

#include <net/page_pool.h>

#include "eswitch.h"

#include "en.h"
@@ -4305,6 +4306,61 @@ static int mlx5e_xdp(struct net_device *dev, struct netdev_bpf *xdp) 
	}

}



#ifdef CONFIG_MLX5_ESWITCH

static int mlx5e_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,

				struct net_device *dev, u32 filter_mask,

				int nlflags)

{

	struct mlx5e_priv *priv = netdev_priv(dev);

	struct mlx5_core_dev *mdev = priv->mdev;

	u8 mode, setting;

	int err;



	err = mlx5_eswitch_get_vepa(mdev->priv.eswitch, &setting);

	if (err)

		return err;

	mode = setting ? BRIDGE_MODE_VEPA : BRIDGE_MODE_VEB;

	return ndo_dflt_bridge_getlink(skb, pid, seq, dev,

				       mode,

				       0, 0, nlflags, filter_mask, NULL);

}



static int mlx5e_bridge_setlink(struct net_device *dev, struct nlmsghdr *nlh,

				u16 flags, struct netlink_ext_ack *extack)

{

	struct mlx5e_priv *priv = netdev_priv(dev);

	struct mlx5_core_dev *mdev = priv->mdev;

	struct nlattr *attr, *br_spec;

	u16 mode = BRIDGE_MODE_UNDEF;

	u8 setting;

	int rem;



	br_spec = nlmsg_find_attr(nlh, sizeof(struct ifinfomsg), IFLA_AF_SPEC);

	if (!br_spec)

		return -EINVAL;



	nla_for_each_nested(attr, br_spec, rem) {

		if (nla_type(attr) != IFLA_BRIDGE_MODE)

			continue;



		if (nla_len(attr) < sizeof(mode))

			return -EINVAL;



		mode = nla_get_u16(attr);

		if (mode > BRIDGE_MODE_VEPA)

			return -EINVAL;



		break;

	}



	if (mode == BRIDGE_MODE_UNDEF)

		return -EINVAL;



	setting = (mode == BRIDGE_MODE_VEPA) ?  1 : 0;

	return mlx5_eswitch_set_vepa(mdev->priv.eswitch, setting);

}

#endif



const struct net_device_ops mlx5e_netdev_ops = {

	.ndo_open                = mlx5e_open,

	.ndo_stop                = mlx5e_close,
@@ -4331,6 +4387,9 @@ const struct net_device_ops mlx5e_netdev_ops = { 
	.ndo_rx_flow_steer	 = mlx5e_rx_flow_steer,

#endif

#ifdef CONFIG_MLX5_ESWITCH

	.ndo_bridge_setlink      = mlx5e_bridge_setlink,

	.ndo_bridge_getlink      = mlx5e_bridge_getlink,



	/* SRIOV E-Switch NDOs */

	.ndo_set_vf_mac          = mlx5e_set_vf_mac,

	.ndo_set_vf_vlan         = mlx5e_set_vf_vlan,