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net/mlx5e: Extract remaining tunnel encap code to dedicated file
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[ Upstream commit e2ab5aa ]

Move set_encap_dests() and clean_encap_dests() to the tunnel encap
dedicated file. And rename them to mlx5e_tc_tun_encap_dests_set()
and mlx5e_tc_tun_encap_dests_unset().

No functional change in this patch. It is needed in the next patch.

Signed-off-by: Chris Mi <cmi@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Stable-dep-of: 37c3b9f ("net/mlx5e: Prevent encap offload when neigh update is running")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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@gregkh
Chris Mi authored and gregkh committed Jun 9, 2023
1 parent 4350910 commit 2c24a9a
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Showing 3 changed files with 94 additions and 87 deletions.
83 changes: 83 additions & 0 deletions drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -985,6 +985,89 @@ int mlx5e_attach_decap(struct mlx5e_priv *priv,
return err;
}

int mlx5e_tc_tun_encap_dests_set(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr,
struct netlink_ext_ack *extack,
bool *vf_tun)
{
struct mlx5e_tc_flow_parse_attr *parse_attr;
struct mlx5_esw_flow_attr *esw_attr;
struct net_device *encap_dev = NULL;
struct mlx5e_rep_priv *rpriv;
struct mlx5e_priv *out_priv;
int out_index;
int err = 0;

if (!mlx5e_is_eswitch_flow(flow))
return 0;

parse_attr = attr->parse_attr;
esw_attr = attr->esw_attr;
*vf_tun = false;

for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) {
struct net_device *out_dev;
int mirred_ifindex;

if (!(esw_attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP))
continue;

mirred_ifindex = parse_attr->mirred_ifindex[out_index];
out_dev = dev_get_by_index(dev_net(priv->netdev), mirred_ifindex);
if (!out_dev) {
NL_SET_ERR_MSG_MOD(extack, "Requested mirred device not found");
err = -ENODEV;
goto out;
}
err = mlx5e_attach_encap(priv, flow, attr, out_dev, out_index,
extack, &encap_dev);
dev_put(out_dev);
if (err)
goto out;

if (esw_attr->dests[out_index].flags &
MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE &&
!esw_attr->dest_int_port)
*vf_tun = true;

out_priv = netdev_priv(encap_dev);
rpriv = out_priv->ppriv;
esw_attr->dests[out_index].rep = rpriv->rep;
esw_attr->dests[out_index].mdev = out_priv->mdev;
}

if (*vf_tun && esw_attr->out_count > 1) {
NL_SET_ERR_MSG_MOD(extack, "VF tunnel encap with mirroring is not supported");
err = -EOPNOTSUPP;
goto out;
}

out:
return err;
}

void mlx5e_tc_tun_encap_dests_unset(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr)
{
struct mlx5_esw_flow_attr *esw_attr;
int out_index;

if (!mlx5e_is_eswitch_flow(flow))
return;

esw_attr = attr->esw_attr;

for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) {
if (!(esw_attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP))
continue;

mlx5e_detach_encap(flow->priv, flow, attr, out_index);
kfree(attr->parse_attr->tun_info[out_index]);
}
}

static int cmp_route_info(struct mlx5e_route_key *a,
struct mlx5e_route_key *b)
{
Expand Down
9 changes: 9 additions & 0 deletions drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.h
View file
Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,15 @@ int mlx5e_attach_decap_route(struct mlx5e_priv *priv,
void mlx5e_detach_decap_route(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow);

int mlx5e_tc_tun_encap_dests_set(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr,
struct netlink_ext_ack *extack,
bool *vf_tun);
void mlx5e_tc_tun_encap_dests_unset(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr);

struct ip_tunnel_info *mlx5e_dup_tun_info(const struct ip_tunnel_info *tun_info);

int mlx5e_tc_set_attr_rx_tun(struct mlx5e_tc_flow *flow,
Expand Down
89 changes: 2 additions & 87 deletions drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1727,91 +1727,6 @@ int mlx5e_tc_query_route_vport(struct net_device *out_dev, struct net_device *ro
return mlx5_eswitch_vhca_id_to_vport(esw, vhca_id, vport);
}

static int
set_encap_dests(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr,
struct netlink_ext_ack *extack,
bool *vf_tun)
{
struct mlx5e_tc_flow_parse_attr *parse_attr;
struct mlx5_esw_flow_attr *esw_attr;
struct net_device *encap_dev = NULL;
struct mlx5e_rep_priv *rpriv;
struct mlx5e_priv *out_priv;
int out_index;
int err = 0;

if (!mlx5e_is_eswitch_flow(flow))
return 0;

parse_attr = attr->parse_attr;
esw_attr = attr->esw_attr;
*vf_tun = false;

for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) {
struct net_device *out_dev;
int mirred_ifindex;

if (!(esw_attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP))
continue;

mirred_ifindex = parse_attr->mirred_ifindex[out_index];
out_dev = dev_get_by_index(dev_net(priv->netdev), mirred_ifindex);
if (!out_dev) {
NL_SET_ERR_MSG_MOD(extack, "Requested mirred device not found");
err = -ENODEV;
goto out;
}
err = mlx5e_attach_encap(priv, flow, attr, out_dev, out_index,
extack, &encap_dev);
dev_put(out_dev);
if (err)
goto out;

if (esw_attr->dests[out_index].flags &
MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE &&
!esw_attr->dest_int_port)
*vf_tun = true;

out_priv = netdev_priv(encap_dev);
rpriv = out_priv->ppriv;
esw_attr->dests[out_index].rep = rpriv->rep;
esw_attr->dests[out_index].mdev = out_priv->mdev;
}

if (*vf_tun && esw_attr->out_count > 1) {
NL_SET_ERR_MSG_MOD(extack, "VF tunnel encap with mirroring is not supported");
err = -EOPNOTSUPP;
goto out;
}

out:
return err;
}

static void
clean_encap_dests(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct mlx5_flow_attr *attr)
{
struct mlx5_esw_flow_attr *esw_attr;
int out_index;

if (!mlx5e_is_eswitch_flow(flow))
return;

esw_attr = attr->esw_attr;

for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) {
if (!(esw_attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP))
continue;

mlx5e_detach_encap(priv, flow, attr, out_index);
kfree(attr->parse_attr->tun_info[out_index]);
}
}

static int
verify_attr_actions(u32 actions, struct netlink_ext_ack *extack)
{
Expand Down Expand Up @@ -1848,7 +1763,7 @@ post_process_attr(struct mlx5e_tc_flow *flow,
if (err)
goto err_out;

err = set_encap_dests(flow->priv, flow, attr, extack, &vf_tun);
err = mlx5e_tc_tun_encap_dests_set(flow->priv, flow, attr, extack, &vf_tun);
if (err)
goto err_out;

Expand Down Expand Up @@ -4439,7 +4354,7 @@ mlx5_free_flow_attr_actions(struct mlx5e_tc_flow *flow, struct mlx5_flow_attr *a
if (attr->post_act_handle)
mlx5e_tc_post_act_del(get_post_action(flow->priv), attr->post_act_handle);

clean_encap_dests(flow->priv, flow, attr);
mlx5e_tc_tun_encap_dests_unset(flow->priv, flow, attr);

if (attr->action & MLX5_FLOW_CONTEXT_ACTION_COUNT)
mlx5_fc_destroy(counter_dev, attr->counter);
Expand Down

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