From: Roi Dayan <roid@nvidia.com>
Date: Thu, 23 Sep 2021 09:43:06 +0300
Subject: net/mlx5e: Move code chunk setting encap dests into its own function
Patch-mainline: v5.18-rc1
Git-commit: 39542e234b5215dc267b425f8315747849c5e520
References: jsc#PED-1549
Split setting encap dests code chunk out of mlx5e_tc_add_fdb_flow()
to make the function smaller for maintainability and reuse.
For symmetry do the same for mlx5e_tc_del_fdb_flow().
While at it refactor cleanup to first check for encap flag like
done when setting encap dests.
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Oz Shlomo <ozsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 144 +++++++++++++++---------
1 file changed, 93 insertions(+), 51 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -1368,6 +1368,94 @@ int mlx5e_tc_add_flow_mod_hdr(struct mlx
}
static int
+set_encap_dests(struct mlx5e_priv *priv,
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack,
+ bool *encap_valid,
+ bool *vf_tun)
+{
+ struct mlx5e_tc_flow_parse_attr *parse_attr;
+ struct mlx5_flow_attr *attr = flow->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;
+
+ parse_attr = attr->parse_attr;
+ esw_attr = attr->esw_attr;
+ *vf_tun = false;
+ *encap_valid = true;
+
+ 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, out_dev, out_index,
+ extack, &encap_dev, encap_valid);
+ 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,
+ bool *vf_tun)
+{
+ struct mlx5_flow_attr *attr = flow->attr;
+ struct mlx5_esw_flow_attr *esw_attr;
+ int out_index;
+
+ esw_attr = attr->esw_attr;
+ *vf_tun = false;
+
+ 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;
+
+ if (esw_attr->dests[out_index].flags &
+ MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE &&
+ !esw_attr->dest_int_port)
+ *vf_tun = true;
+
+ mlx5e_detach_encap(priv, flow, out_index);
+ kfree(attr->parse_attr->tun_info[out_index]);
+ }
+}
+
+static int
mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
struct netlink_ext_ack *extack)
@@ -1375,15 +1463,11 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_tc_flow_parse_attr *parse_attr;
struct mlx5_flow_attr *attr = flow->attr;
- bool vf_tun = false, encap_valid = true;
- struct net_device *encap_dev = NULL;
struct mlx5_esw_flow_attr *esw_attr;
- struct mlx5e_rep_priv *rpriv;
- struct mlx5e_priv *out_priv;
+ bool vf_tun, encap_valid;
struct mlx5_fc *counter;
u32 max_prio, max_chain;
int err = 0;
- int out_index;
parse_attr = attr->parse_attr;
esw_attr = attr->esw_attr;
@@ -1472,41 +1556,9 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv
esw_attr->int_port = int_port;
}
- 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 err_out;
- }
- err = mlx5e_attach_encap(priv, flow, out_dev, out_index,
- extack, &encap_dev, &encap_valid);
- dev_put(out_dev);
- if (err)
- goto err_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;
+ err = set_encap_dests(priv, flow, extack, &encap_valid, &vf_tun);
+ if (err)
goto err_out;
- }
err = mlx5_eswitch_add_vlan_action(esw, attr);
if (err)
@@ -1576,8 +1628,7 @@ static void mlx5e_tc_del_fdb_flow(struct
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5_flow_attr *attr = flow->attr;
struct mlx5_esw_flow_attr *esw_attr;
- bool vf_tun = false;
- int out_index;
+ bool vf_tun;
esw_attr = attr->esw_attr;
mlx5e_put_flow_tunnel_id(flow);
@@ -1601,16 +1652,7 @@ static void mlx5e_tc_del_fdb_flow(struct
if (flow->decap_route)
mlx5e_detach_decap_route(priv, flow);
- for (out_index = 0; out_index < MLX5_MAX_FLOW_FWD_VPORTS; out_index++) {
- if (esw_attr->dests[out_index].flags &
- MLX5_ESW_DEST_CHAIN_WITH_SRC_PORT_CHANGE &&
- !esw_attr->dest_int_port)
- vf_tun = true;
- if (esw_attr->dests[out_index].flags & MLX5_ESW_DEST_ENCAP) {
- mlx5e_detach_encap(priv, flow, out_index);
- kfree(attr->parse_attr->tun_info[out_index]);
- }
- }
+ clean_encap_dests(priv, flow, &vf_tun);
mlx5_tc_ct_match_del(get_ct_priv(priv), &flow->attr->ct_attr);