From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Tue, 10 Apr 2018 14:27:43 +0300
Subject: net/mlx5e: Prepare for shared table to keep TC eswitch flows
Patch-mainline: v4.18-rc1
Git-commit: 05866c82360aef6005de1920d585ae604309e732
References: bsc#1103990 FATE#326006
This is a refactoring step to be able and store the hash table which
keeps track of offloaded TC flows in a different location for NIC
vs e-switch rules.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/mellanox/mlx5/core/en.h | 1
drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 39 ++++++++++++------------
2 files changed, 20 insertions(+), 20 deletions(-)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -634,7 +634,6 @@ struct mlx5e_flow_table {
struct mlx5e_tc_table {
struct mlx5_flow_table *t;
- struct rhashtable_params ht_params;
struct rhashtable ht;
DECLARE_HASHTABLE(mod_hdr_tbl, 8);
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2634,12 +2634,24 @@ static void get_flags(int flags, u8 *flo
*flow_flags = __flow_flags;
}
+static const struct rhashtable_params tc_ht_params = {
+ .head_offset = offsetof(struct mlx5e_tc_flow, node),
+ .key_offset = offsetof(struct mlx5e_tc_flow, cookie),
+ .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie),
+ .automatic_shrinking = true,
+};
+
+static struct rhashtable *get_tc_ht(struct mlx5e_priv *priv)
+{
+ return &priv->fs.tc.ht;
+}
+
int mlx5e_configure_flower(struct mlx5e_priv *priv,
struct tc_cls_flower_offload *f, int flags)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_tc_flow_parse_attr *parse_attr;
- struct mlx5e_tc_table *tc = &priv->fs.tc;
+ struct rhashtable *tc_ht = get_tc_ht(priv);
struct mlx5e_tc_flow *flow;
int attr_size, err = 0;
u8 flow_flags = 0;
@@ -2693,8 +2705,7 @@ int mlx5e_configure_flower(struct mlx5e_
!(flow->esw_attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP))
kvfree(parse_attr);
- err = rhashtable_insert_fast(&tc->ht, &flow->node,
- tc->ht_params);
+ err = rhashtable_insert_fast(tc_ht, &flow->node, tc_ht_params);
if (err) {
mlx5e_tc_del_flow(priv, flow);
kfree(flow);
@@ -2711,15 +2722,14 @@ err_free:
int mlx5e_delete_flower(struct mlx5e_priv *priv,
struct tc_cls_flower_offload *f, int flags)
{
+ struct rhashtable *tc_ht = get_tc_ht(priv);
struct mlx5e_tc_flow *flow;
- struct mlx5e_tc_table *tc = &priv->fs.tc;
- flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
- tc->ht_params);
+ flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params);
if (!flow)
return -EINVAL;
- rhashtable_remove_fast(&tc->ht, &flow->node, tc->ht_params);
+ rhashtable_remove_fast(tc_ht, &flow->node, tc_ht_params);
mlx5e_tc_del_flow(priv, flow);
@@ -2731,15 +2741,14 @@ int mlx5e_delete_flower(struct mlx5e_pri
int mlx5e_stats_flower(struct mlx5e_priv *priv,
struct tc_cls_flower_offload *f, int flags)
{
- struct mlx5e_tc_table *tc = &priv->fs.tc;
+ struct rhashtable *tc_ht = get_tc_ht(priv);
struct mlx5e_tc_flow *flow;
struct mlx5_fc *counter;
u64 bytes;
u64 packets;
u64 lastuse;
- flow = rhashtable_lookup_fast(&tc->ht, &f->cookie,
- tc->ht_params);
+ flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params);
if (!flow)
return -EINVAL;
@@ -2757,13 +2766,6 @@ int mlx5e_stats_flower(struct mlx5e_priv
return 0;
}
-static const struct rhashtable_params mlx5e_tc_flow_ht_params = {
- .head_offset = offsetof(struct mlx5e_tc_flow, node),
- .key_offset = offsetof(struct mlx5e_tc_flow, cookie),
- .key_len = sizeof(((struct mlx5e_tc_flow *)0)->cookie),
- .automatic_shrinking = true,
-};
-
int mlx5e_tc_init(struct mlx5e_priv *priv)
{
struct mlx5e_tc_table *tc = &priv->fs.tc;
@@ -2771,8 +2773,7 @@ int mlx5e_tc_init(struct mlx5e_priv *pri
hash_init(tc->mod_hdr_tbl);
hash_init(tc->hairpin_tbl);
- tc->ht_params = mlx5e_tc_flow_ht_params;
- return rhashtable_init(&tc->ht, &tc->ht_params);
+ return rhashtable_init(&tc->ht, &tc_ht_params);
}
static void _mlx5e_tc_del_flow(void *ptr, void *arg)