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Date: Tue, 6 Apr 2021 21:54:09 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>
Cc: netdev@...r.kernel.org, Chris Mi <cmi@...dia.com>,
Oz Shlomo <ozsh@...dia.com>, Mark Bloch <mbloch@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [net-next 01/13] net/mlx5: E-switch, Move vport table functions to a new file
From: Chris Mi <cmi@...dia.com>
Currently, the vport table functions are in common eswitch offload
file. This file is too big. Move the vport table create, delete and
lookup functions to a separate file. Put the file in esw directory.
Pre-step for generalizing its functionality for serving both the
mirroring and the sample features.
Signed-off-by: Chris Mi <cmi@...dia.com>
Reviewed-by: Oz Shlomo <ozsh@...dia.com>
Reviewed-by: Mark Bloch <mbloch@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../net/ethernet/mellanox/mlx5/core/Makefile | 2 +-
.../mellanox/mlx5/core/esw/vporttbl.c | 136 +++++++++++
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 12 +-
.../mellanox/mlx5/core/eswitch_offloads.c | 215 +++---------------
4 files changed, 183 insertions(+), 182 deletions(-)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/esw/vporttbl.c
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 9cf7de72df52..4c86b68ad26c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -53,7 +53,7 @@ mlx5_core-$(CONFIG_MLX5_ESWITCH) += eswitch.o eswitch_offloads.o eswitch_offlo
mlx5_core-$(CONFIG_MLX5_ESWITCH) += esw/acl/helper.o \
esw/acl/egress_lgcy.o esw/acl/egress_ofld.o \
esw/acl/ingress_lgcy.o esw/acl/ingress_ofld.o \
- esw/devlink_port.o
+ esw/devlink_port.o esw/vporttbl.o
mlx5_core-$(CONFIG_MLX5_MPFS) += lib/mpfs.o
mlx5_core-$(CONFIG_VXLAN) += lib/vxlan.o
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/vporttbl.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/vporttbl.c
new file mode 100644
index 000000000000..8219c5d50db0
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/vporttbl.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2021 Mellanox Technologies.
+
+#include "eswitch.h"
+
+#define MLX5_ESW_VPORT_TABLE_SIZE 128
+#define MLX5_ESW_VPORT_TBL_NUM_GROUPS 4
+
+/* This struct is used as a key to the hash table and we need it to be packed
+ * so hash result is consistent
+ */
+struct mlx5_vport_key {
+ u32 chain;
+ u16 prio;
+ u16 vport;
+ u16 vhca_id;
+} __packed;
+
+struct mlx5_vport_table {
+ struct hlist_node hlist;
+ struct mlx5_flow_table *fdb;
+ u32 num_rules;
+ struct mlx5_vport_key key;
+};
+
+static struct mlx5_flow_table *
+esw_vport_tbl_create(struct mlx5_eswitch *esw, struct mlx5_flow_namespace *ns)
+{
+ struct mlx5_flow_table_attr ft_attr = {};
+ struct mlx5_flow_table *fdb;
+
+ ft_attr.autogroup.max_num_groups = MLX5_ESW_VPORT_TBL_NUM_GROUPS;
+ ft_attr.max_fte = MLX5_ESW_VPORT_TABLE_SIZE;
+ ft_attr.prio = FDB_PER_VPORT;
+ fdb = mlx5_create_auto_grouped_flow_table(ns, &ft_attr);
+ if (IS_ERR(fdb)) {
+ esw_warn(esw->dev, "Failed to create per vport FDB Table err %ld\n",
+ PTR_ERR(fdb));
+ }
+
+ return fdb;
+}
+
+static u32 flow_attr_to_vport_key(struct mlx5_eswitch *esw,
+ struct mlx5_vport_tbl_attr *attr,
+ struct mlx5_vport_key *key)
+{
+ key->vport = attr->vport;
+ key->chain = attr->chain;
+ key->prio = attr->prio;
+ key->vhca_id = MLX5_CAP_GEN(esw->dev, vhca_id);
+ return jhash(key, sizeof(*key), 0);
+}
+
+/* caller must hold vports.lock */
+static struct mlx5_vport_table *
+esw_vport_tbl_lookup(struct mlx5_eswitch *esw, struct mlx5_vport_key *skey, u32 key)
+{
+ struct mlx5_vport_table *e;
+
+ hash_for_each_possible(esw->fdb_table.offloads.vports.table, e, hlist, key)
+ if (!memcmp(&e->key, skey, sizeof(*skey)))
+ return e;
+
+ return NULL;
+}
+
+struct mlx5_flow_table *
+esw_vport_tbl_get(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr)
+{
+ struct mlx5_core_dev *dev = esw->dev;
+ struct mlx5_flow_namespace *ns;
+ struct mlx5_flow_table *fdb;
+ struct mlx5_vport_table *e;
+ struct mlx5_vport_key skey;
+ u32 hkey;
+
+ mutex_lock(&esw->fdb_table.offloads.vports.lock);
+ hkey = flow_attr_to_vport_key(esw, attr, &skey);
+ e = esw_vport_tbl_lookup(esw, &skey, hkey);
+ if (e) {
+ e->num_rules++;
+ goto out;
+ }
+
+ e = kzalloc(sizeof(*e), GFP_KERNEL);
+ if (!e) {
+ fdb = ERR_PTR(-ENOMEM);
+ goto err_alloc;
+ }
+
+ ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
+ if (!ns) {
+ esw_warn(dev, "Failed to get FDB namespace\n");
+ fdb = ERR_PTR(-ENOENT);
+ goto err_ns;
+ }
+
+ fdb = esw_vport_tbl_create(esw, ns);
+ if (IS_ERR(fdb))
+ goto err_ns;
+
+ e->fdb = fdb;
+ e->num_rules = 1;
+ e->key = skey;
+ hash_add(esw->fdb_table.offloads.vports.table, &e->hlist, hkey);
+out:
+ mutex_unlock(&esw->fdb_table.offloads.vports.lock);
+ return e->fdb;
+
+err_ns:
+ kfree(e);
+err_alloc:
+ mutex_unlock(&esw->fdb_table.offloads.vports.lock);
+ return fdb;
+}
+
+void
+esw_vport_tbl_put(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr)
+{
+ struct mlx5_vport_table *e;
+ struct mlx5_vport_key key;
+ u32 hkey;
+
+ mutex_lock(&esw->fdb_table.offloads.vports.lock);
+ hkey = flow_attr_to_vport_key(esw, attr, &key);
+ e = esw_vport_tbl_lookup(esw, &key, hkey);
+ if (!e || --e->num_rules)
+ goto out;
+
+ hash_del(&e->hlist);
+ mlx5_destroy_flow_table(e->fdb);
+ kfree(e);
+out:
+ mutex_unlock(&esw->fdb_table.offloads.vports.lock);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 64db903068c1..70eeb8d1ae03 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -713,8 +713,16 @@ void
esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
struct mlx5_vport *vport);
-int mlx5_esw_vport_tbl_get(struct mlx5_eswitch *esw);
-void mlx5_esw_vport_tbl_put(struct mlx5_eswitch *esw);
+struct mlx5_vport_tbl_attr {
+ u16 chain;
+ u16 prio;
+ u16 vport;
+};
+
+struct mlx5_flow_table *
+esw_vport_tbl_get(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
+void
+esw_vport_tbl_put(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr);
struct mlx5_flow_handle *
esw_add_restore_rule(struct mlx5_eswitch *esw, u32 tag);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index d5de6bf622ce..3caf6c0b3296 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -54,185 +54,6 @@
#define MLX5_ESW_MISS_FLOWS (2)
#define UPLINK_REP_INDEX 0
-/* Per vport tables */
-
-#define MLX5_ESW_VPORT_TABLE_SIZE 128
-
-/* This struct is used as a key to the hash table and we need it to be packed
- * so hash result is consistent
- */
-struct mlx5_vport_key {
- u32 chain;
- u16 prio;
- u16 vport;
- u16 vhca_id;
-} __packed;
-
-struct mlx5_vport_tbl_attr {
- u16 chain;
- u16 prio;
- u16 vport;
-};
-
-struct mlx5_vport_table {
- struct hlist_node hlist;
- struct mlx5_flow_table *fdb;
- u32 num_rules;
- struct mlx5_vport_key key;
-};
-
-#define MLX5_ESW_VPORT_TBL_NUM_GROUPS 4
-
-static struct mlx5_flow_table *
-esw_vport_tbl_create(struct mlx5_eswitch *esw, struct mlx5_flow_namespace *ns)
-{
- struct mlx5_flow_table_attr ft_attr = {};
- struct mlx5_flow_table *fdb;
-
- ft_attr.autogroup.max_num_groups = MLX5_ESW_VPORT_TBL_NUM_GROUPS;
- ft_attr.max_fte = MLX5_ESW_VPORT_TABLE_SIZE;
- ft_attr.prio = FDB_PER_VPORT;
- fdb = mlx5_create_auto_grouped_flow_table(ns, &ft_attr);
- if (IS_ERR(fdb)) {
- esw_warn(esw->dev, "Failed to create per vport FDB Table err %ld\n",
- PTR_ERR(fdb));
- }
-
- return fdb;
-}
-
-static u32 flow_attr_to_vport_key(struct mlx5_eswitch *esw,
- struct mlx5_vport_tbl_attr *attr,
- struct mlx5_vport_key *key)
-{
- key->vport = attr->vport;
- key->chain = attr->chain;
- key->prio = attr->prio;
- key->vhca_id = MLX5_CAP_GEN(esw->dev, vhca_id);
- return jhash(key, sizeof(*key), 0);
-}
-
-/* caller must hold vports.lock */
-static struct mlx5_vport_table *
-esw_vport_tbl_lookup(struct mlx5_eswitch *esw, struct mlx5_vport_key *skey, u32 key)
-{
- struct mlx5_vport_table *e;
-
- hash_for_each_possible(esw->fdb_table.offloads.vports.table, e, hlist, key)
- if (!memcmp(&e->key, skey, sizeof(*skey)))
- return e;
-
- return NULL;
-}
-
-static void
-esw_vport_tbl_put(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr)
-{
- struct mlx5_vport_table *e;
- struct mlx5_vport_key key;
- u32 hkey;
-
- mutex_lock(&esw->fdb_table.offloads.vports.lock);
- hkey = flow_attr_to_vport_key(esw, attr, &key);
- e = esw_vport_tbl_lookup(esw, &key, hkey);
- if (!e || --e->num_rules)
- goto out;
-
- hash_del(&e->hlist);
- mlx5_destroy_flow_table(e->fdb);
- kfree(e);
-out:
- mutex_unlock(&esw->fdb_table.offloads.vports.lock);
-}
-
-static struct mlx5_flow_table *
-esw_vport_tbl_get(struct mlx5_eswitch *esw, struct mlx5_vport_tbl_attr *attr)
-{
- struct mlx5_core_dev *dev = esw->dev;
- struct mlx5_flow_namespace *ns;
- struct mlx5_flow_table *fdb;
- struct mlx5_vport_table *e;
- struct mlx5_vport_key skey;
- u32 hkey;
-
- mutex_lock(&esw->fdb_table.offloads.vports.lock);
- hkey = flow_attr_to_vport_key(esw, attr, &skey);
- e = esw_vport_tbl_lookup(esw, &skey, hkey);
- if (e) {
- e->num_rules++;
- goto out;
- }
-
- e = kzalloc(sizeof(*e), GFP_KERNEL);
- if (!e) {
- fdb = ERR_PTR(-ENOMEM);
- goto err_alloc;
- }
-
- ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
- if (!ns) {
- esw_warn(dev, "Failed to get FDB namespace\n");
- fdb = ERR_PTR(-ENOENT);
- goto err_ns;
- }
-
- fdb = esw_vport_tbl_create(esw, ns);
- if (IS_ERR(fdb))
- goto err_ns;
-
- e->fdb = fdb;
- e->num_rules = 1;
- e->key = skey;
- hash_add(esw->fdb_table.offloads.vports.table, &e->hlist, hkey);
-out:
- mutex_unlock(&esw->fdb_table.offloads.vports.lock);
- return e->fdb;
-
-err_ns:
- kfree(e);
-err_alloc:
- mutex_unlock(&esw->fdb_table.offloads.vports.lock);
- return fdb;
-}
-
-int mlx5_esw_vport_tbl_get(struct mlx5_eswitch *esw)
-{
- struct mlx5_vport_tbl_attr attr;
- struct mlx5_flow_table *fdb;
- struct mlx5_vport *vport;
- int i;
-
- attr.chain = 0;
- attr.prio = 1;
- mlx5_esw_for_all_vports(esw, i, vport) {
- attr.vport = vport->vport;
- fdb = esw_vport_tbl_get(esw, &attr);
- if (IS_ERR(fdb))
- goto out;
- }
- return 0;
-
-out:
- mlx5_esw_vport_tbl_put(esw);
- return PTR_ERR(fdb);
-}
-
-void mlx5_esw_vport_tbl_put(struct mlx5_eswitch *esw)
-{
- struct mlx5_vport_tbl_attr attr;
- struct mlx5_vport *vport;
- int i;
-
- attr.chain = 0;
- attr.prio = 1;
- mlx5_esw_for_all_vports(esw, i, vport) {
- attr.vport = vport->vport;
- esw_vport_tbl_put(esw, &attr);
- }
-}
-
-/* End: Per vport tables */
-
static struct mlx5_eswitch_rep *mlx5_eswitch_get_rep(struct mlx5_eswitch *esw,
u16 vport_num)
{
@@ -1514,6 +1335,42 @@ static void esw_set_flow_group_source_port(struct mlx5_eswitch *esw,
}
#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
+static void mlx5_esw_vport_tbl_put(struct mlx5_eswitch *esw)
+{
+ struct mlx5_vport_tbl_attr attr;
+ struct mlx5_vport *vport;
+ int i;
+
+ attr.chain = 0;
+ attr.prio = 1;
+ mlx5_esw_for_all_vports(esw, i, vport) {
+ attr.vport = vport->vport;
+ esw_vport_tbl_put(esw, &attr);
+ }
+}
+
+static int mlx5_esw_vport_tbl_get(struct mlx5_eswitch *esw)
+{
+ struct mlx5_vport_tbl_attr attr;
+ struct mlx5_flow_table *fdb;
+ struct mlx5_vport *vport;
+ int i;
+
+ attr.chain = 0;
+ attr.prio = 1;
+ mlx5_esw_for_all_vports(esw, i, vport) {
+ attr.vport = vport->vport;
+ fdb = esw_vport_tbl_get(esw, &attr);
+ if (IS_ERR(fdb))
+ goto out;
+ }
+ return 0;
+
+out:
+ mlx5_esw_vport_tbl_put(esw);
+ return PTR_ERR(fdb);
+}
+
#define fdb_modify_header_fwd_to_table_supported(esw) \
(MLX5_CAP_ESW_FLOWTABLE((esw)->dev, fdb_modify_header_fwd_to_table))
static void esw_init_chains_offload_flags(struct mlx5_eswitch *esw, u32 *flags)
--
2.30.2
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