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Date: Tue, 11 Apr 2023 21:07:44 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: "David S. Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Eric Dumazet <edumazet@...gle.com>
Cc: Saeed Mahameed <saeedm@...dia.com>, netdev@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>,
Vlad Buslov <vladbu@...dia.com>,
Maor Dickman <maord@...dia.com>, Roi Dayan <roid@...dia.com>
Subject: [net-next 07/15] net/mlx5: Bridge, support multicast VLAN pop
From: Vlad Buslov <vladbu@...dia.com>
When VLAN with 'untagged' flag is created on port also provision the
per-port multicast table rule to pop the VLAN during packet replication.
This functionality must be in per-port table because some subset of ports
that are member of multicast group can require just a match on VLAN (trunk
mode) while other subset can be configured to remove the VLAN tag from
packets received on the ports (access mode).
Signed-off-by: Vlad Buslov <vladbu@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../ethernet/mellanox/mlx5/core/esw/bridge.c | 33 ++-
.../mellanox/mlx5/core/esw/bridge_mcast.c | 190 +++++++++++++++++-
.../mellanox/mlx5/core/esw/bridge_priv.h | 22 +-
3 files changed, 236 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
index 4bc8c6fc394b..52c976135397 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge.c
@@ -1095,8 +1095,21 @@ mlx5_esw_bridge_vlan_push_mark_cleanup(struct mlx5_esw_bridge_vlan *vlan, struct
}
static int
-mlx5_esw_bridge_vlan_push_pop_create(u16 vlan_proto, u16 flags, struct mlx5_esw_bridge_vlan *vlan,
- struct mlx5_eswitch *esw)
+mlx5_esw_bridge_vlan_push_pop_fhs_create(u16 vlan_proto, struct mlx5_esw_bridge_port *port,
+ struct mlx5_esw_bridge_vlan *vlan)
+{
+ return mlx5_esw_bridge_vlan_mcast_init(vlan_proto, port, vlan);
+}
+
+static void
+mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(struct mlx5_esw_bridge_vlan *vlan)
+{
+ mlx5_esw_bridge_vlan_mcast_cleanup(vlan);
+}
+
+static int
+mlx5_esw_bridge_vlan_push_pop_create(u16 vlan_proto, u16 flags, struct mlx5_esw_bridge_port *port,
+ struct mlx5_esw_bridge_vlan *vlan, struct mlx5_eswitch *esw)
{
int err;
@@ -1114,10 +1127,16 @@ mlx5_esw_bridge_vlan_push_pop_create(u16 vlan_proto, u16 flags, struct mlx5_esw_
err = mlx5_esw_bridge_vlan_pop_create(vlan, esw);
if (err)
goto err_vlan_pop;
+
+ err = mlx5_esw_bridge_vlan_push_pop_fhs_create(vlan_proto, port, vlan);
+ if (err)
+ goto err_vlan_pop_fhs;
}
return 0;
+err_vlan_pop_fhs:
+ mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw);
err_vlan_pop:
if (vlan->pkt_mod_hdr_push_mark)
mlx5_esw_bridge_vlan_push_mark_cleanup(vlan, esw);
@@ -1142,7 +1161,7 @@ mlx5_esw_bridge_vlan_create(u16 vlan_proto, u16 vid, u16 flags, struct mlx5_esw_
vlan->flags = flags;
INIT_LIST_HEAD(&vlan->fdb_list);
- err = mlx5_esw_bridge_vlan_push_pop_create(vlan_proto, flags, vlan, esw);
+ err = mlx5_esw_bridge_vlan_push_pop_create(vlan_proto, flags, port, vlan, esw);
if (err)
goto err_vlan_push_pop;
@@ -1154,6 +1173,8 @@ mlx5_esw_bridge_vlan_create(u16 vlan_proto, u16 vid, u16 flags, struct mlx5_esw_
return vlan;
err_xa_insert:
+ if (vlan->mcast_handle)
+ mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(vlan);
if (vlan->pkt_reformat_pop)
mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw);
if (vlan->pkt_mod_hdr_push_mark)
@@ -1180,6 +1201,8 @@ static void mlx5_esw_bridge_vlan_flush(struct mlx5_esw_bridge_vlan *vlan,
list_for_each_entry_safe(entry, tmp, &vlan->fdb_list, vlan_list)
mlx5_esw_bridge_fdb_entry_notify_and_cleanup(entry, bridge);
+ if (vlan->mcast_handle)
+ mlx5_esw_bridge_vlan_push_pop_fhs_cleanup(vlan);
if (vlan->pkt_reformat_pop)
mlx5_esw_bridge_vlan_pop_cleanup(vlan, esw);
if (vlan->pkt_mod_hdr_push_mark)
@@ -1218,8 +1241,8 @@ static int mlx5_esw_bridge_port_vlans_recreate(struct mlx5_esw_bridge_port *port
xa_for_each(&port->vlans, i, vlan) {
mlx5_esw_bridge_vlan_flush(vlan, bridge);
- err = mlx5_esw_bridge_vlan_push_pop_create(bridge->vlan_proto, vlan->flags, vlan,
- br_offloads->esw);
+ err = mlx5_esw_bridge_vlan_push_pop_create(bridge->vlan_proto, vlan->flags, port,
+ vlan, br_offloads->esw);
if (err) {
esw_warn(br_offloads->esw->dev,
"Failed to create VLAN=%u(proto=%x) push/pop actions (vport=%u,err=%d)\n",
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_mcast.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_mcast.c
index 4f54cb41ed19..99e2f9fc11a2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_mcast.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_mcast.c
@@ -62,6 +62,60 @@ mlx5_esw_bridge_mcast_filter_fg_create(struct mlx5_eswitch *esw,
return fg;
}
+static struct mlx5_flow_group *
+mlx5_esw_bridge_mcast_vlan_proto_fg_create(unsigned int from, unsigned int to, u16 vlan_proto,
+ struct mlx5_eswitch *esw,
+ struct mlx5_flow_table *mcast_ft)
+{
+ int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
+ struct mlx5_flow_group *fg;
+ u32 *in, *match;
+
+ in = kvzalloc(inlen, GFP_KERNEL);
+ if (!in)
+ return ERR_PTR(-ENOMEM);
+
+ MLX5_SET(create_flow_group_in, in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
+ match = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
+
+ if (vlan_proto == ETH_P_8021Q)
+ MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.cvlan_tag);
+ else if (vlan_proto == ETH_P_8021AD)
+ MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.svlan_tag);
+ MLX5_SET_TO_ONES(fte_match_param, match, outer_headers.first_vid);
+
+ MLX5_SET(create_flow_group_in, in, start_flow_index, from);
+ MLX5_SET(create_flow_group_in, in, end_flow_index, to);
+
+ fg = mlx5_create_flow_group(mcast_ft, in);
+ kvfree(in);
+ if (IS_ERR(fg))
+ esw_warn(esw->dev,
+ "Failed to create VLAN(proto=%x) flow group for bridge mcast table (err=%pe)\n",
+ vlan_proto, fg);
+
+ return fg;
+}
+
+static struct mlx5_flow_group *
+mlx5_esw_bridge_mcast_vlan_fg_create(struct mlx5_eswitch *esw, struct mlx5_flow_table *mcast_ft)
+{
+ unsigned int from = MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_FROM;
+ unsigned int to = MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_TO;
+
+ return mlx5_esw_bridge_mcast_vlan_proto_fg_create(from, to, ETH_P_8021Q, esw, mcast_ft);
+}
+
+static struct mlx5_flow_group *
+mlx5_esw_bridge_mcast_qinq_fg_create(struct mlx5_eswitch *esw,
+ struct mlx5_flow_table *mcast_ft)
+{
+ unsigned int from = MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_FROM;
+ unsigned int to = MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_TO;
+
+ return mlx5_esw_bridge_mcast_vlan_proto_fg_create(from, to, ETH_P_8021AD, esw, mcast_ft);
+}
+
static struct mlx5_flow_group *
mlx5_esw_bridge_mcast_fwd_fg_create(struct mlx5_eswitch *esw,
struct mlx5_flow_table *mcast_ft)
@@ -91,15 +145,27 @@ mlx5_esw_bridge_mcast_fwd_fg_create(struct mlx5_eswitch *esw,
static int mlx5_esw_bridge_port_mcast_fgs_init(struct mlx5_esw_bridge_port *port)
{
+ struct mlx5_flow_group *fwd_fg, *qinq_fg, *vlan_fg, *filter_fg;
struct mlx5_eswitch *esw = port->bridge->br_offloads->esw;
struct mlx5_flow_table *mcast_ft = port->mcast.ft;
- struct mlx5_flow_group *fwd_fg, *filter_fg;
int err;
filter_fg = mlx5_esw_bridge_mcast_filter_fg_create(esw, mcast_ft);
if (IS_ERR(filter_fg))
return PTR_ERR(filter_fg);
+ vlan_fg = mlx5_esw_bridge_mcast_vlan_fg_create(esw, mcast_ft);
+ if (IS_ERR(vlan_fg)) {
+ err = PTR_ERR(vlan_fg);
+ goto err_vlan_fg;
+ }
+
+ qinq_fg = mlx5_esw_bridge_mcast_qinq_fg_create(esw, mcast_ft);
+ if (IS_ERR(qinq_fg)) {
+ err = PTR_ERR(qinq_fg);
+ goto err_qinq_fg;
+ }
+
fwd_fg = mlx5_esw_bridge_mcast_fwd_fg_create(esw, mcast_ft);
if (IS_ERR(fwd_fg)) {
err = PTR_ERR(fwd_fg);
@@ -107,11 +173,17 @@ static int mlx5_esw_bridge_port_mcast_fgs_init(struct mlx5_esw_bridge_port *port
}
port->mcast.filter_fg = filter_fg;
+ port->mcast.vlan_fg = vlan_fg;
+ port->mcast.qinq_fg = qinq_fg;
port->mcast.fwd_fg = fwd_fg;
return 0;
err_fwd_fg:
+ mlx5_destroy_flow_group(qinq_fg);
+err_qinq_fg:
+ mlx5_destroy_flow_group(vlan_fg);
+err_vlan_fg:
mlx5_destroy_flow_group(filter_fg);
return err;
}
@@ -121,6 +193,12 @@ static void mlx5_esw_bridge_port_mcast_fgs_cleanup(struct mlx5_esw_bridge_port *
if (port->mcast.fwd_fg)
mlx5_destroy_flow_group(port->mcast.fwd_fg);
port->mcast.fwd_fg = NULL;
+ if (port->mcast.qinq_fg)
+ mlx5_destroy_flow_group(port->mcast.qinq_fg);
+ port->mcast.qinq_fg = NULL;
+ if (port->mcast.vlan_fg)
+ mlx5_destroy_flow_group(port->mcast.vlan_fg);
+ port->mcast.vlan_fg = NULL;
if (port->mcast.filter_fg)
mlx5_destroy_flow_group(port->mcast.filter_fg);
port->mcast.filter_fg = NULL;
@@ -177,6 +255,82 @@ mlx5_esw_bridge_mcast_filter_flow_peer_create(struct mlx5_esw_bridge_port *port)
return handle;
}
+static struct mlx5_flow_handle *
+mlx5_esw_bridge_mcast_vlan_flow_create(u16 vlan_proto, struct mlx5_esw_bridge_port *port,
+ struct mlx5_esw_bridge_vlan *vlan)
+{
+ struct mlx5_flow_act flow_act = {
+ .action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,
+ .flags = FLOW_ACT_NO_APPEND,
+ };
+ struct mlx5_flow_destination dest = {
+ .type = MLX5_FLOW_DESTINATION_TYPE_VPORT,
+ .vport.num = port->vport_num,
+ };
+ struct mlx5_esw_bridge *bridge = port->bridge;
+ struct mlx5_flow_spec *rule_spec;
+ struct mlx5_flow_handle *handle;
+
+ rule_spec = kvzalloc(sizeof(*rule_spec), GFP_KERNEL);
+ if (!rule_spec)
+ return ERR_PTR(-ENOMEM);
+
+ if (MLX5_CAP_ESW_FLOWTABLE(bridge->br_offloads->esw->dev, flow_source) &&
+ port->vport_num == MLX5_VPORT_UPLINK)
+ rule_spec->flow_context.flow_source =
+ MLX5_FLOW_CONTEXT_FLOW_SOURCE_LOCAL_VPORT;
+ rule_spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
+
+ flow_act.action |= MLX5_FLOW_CONTEXT_ACTION_PACKET_REFORMAT;
+ flow_act.pkt_reformat = vlan->pkt_reformat_pop;
+
+ if (vlan_proto == ETH_P_8021Q) {
+ MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria,
+ outer_headers.cvlan_tag);
+ MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value,
+ outer_headers.cvlan_tag);
+ } else if (vlan_proto == ETH_P_8021AD) {
+ MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria,
+ outer_headers.svlan_tag);
+ MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_value,
+ outer_headers.svlan_tag);
+ }
+ MLX5_SET_TO_ONES(fte_match_param, rule_spec->match_criteria, outer_headers.first_vid);
+ MLX5_SET(fte_match_param, rule_spec->match_value, outer_headers.first_vid, vlan->vid);
+
+ if (MLX5_CAP_ESW(bridge->br_offloads->esw->dev, merged_eswitch)) {
+ dest.vport.flags = MLX5_FLOW_DEST_VPORT_VHCA_ID;
+ dest.vport.vhca_id = port->esw_owner_vhca_id;
+ }
+ handle = mlx5_add_flow_rules(port->mcast.ft, rule_spec, &flow_act, &dest, 1);
+
+ kvfree(rule_spec);
+ return handle;
+}
+
+int mlx5_esw_bridge_vlan_mcast_init(u16 vlan_proto, struct mlx5_esw_bridge_port *port,
+ struct mlx5_esw_bridge_vlan *vlan)
+{
+ struct mlx5_flow_handle *handle;
+
+ if (!(port->bridge->flags & MLX5_ESW_BRIDGE_MCAST_FLAG))
+ return 0;
+
+ handle = mlx5_esw_bridge_mcast_vlan_flow_create(vlan_proto, port, vlan);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+
+ vlan->mcast_handle = handle;
+ return 0;
+}
+
+void mlx5_esw_bridge_vlan_mcast_cleanup(struct mlx5_esw_bridge_vlan *vlan)
+{
+ if (vlan->mcast_handle)
+ mlx5_del_flow_rules(vlan->mcast_handle);
+ vlan->mcast_handle = NULL;
+}
+
static struct mlx5_flow_handle *
mlx5_esw_bridge_mcast_fwd_flow_create(struct mlx5_esw_bridge_port *port)
{
@@ -214,6 +368,10 @@ mlx5_esw_bridge_mcast_fwd_flow_create(struct mlx5_esw_bridge_port *port)
static int mlx5_esw_bridge_port_mcast_fhs_init(struct mlx5_esw_bridge_port *port)
{
struct mlx5_flow_handle *filter_handle, *fwd_handle;
+ struct mlx5_esw_bridge_vlan *vlan, *failed;
+ unsigned long index;
+ int err;
+
filter_handle = (port->flags & MLX5_ESW_BRIDGE_PORT_FLAG_PEER) ?
mlx5_esw_bridge_mcast_filter_flow_peer_create(port) :
@@ -223,18 +381,44 @@ static int mlx5_esw_bridge_port_mcast_fhs_init(struct mlx5_esw_bridge_port *port
fwd_handle = mlx5_esw_bridge_mcast_fwd_flow_create(port);
if (IS_ERR(fwd_handle)) {
- mlx5_del_flow_rules(filter_handle);
- return PTR_ERR(fwd_handle);
+ err = PTR_ERR(fwd_handle);
+ goto err_fwd;
+ }
+
+ xa_for_each(&port->vlans, index, vlan) {
+ err = mlx5_esw_bridge_vlan_mcast_init(port->bridge->vlan_proto, port, vlan);
+ if (err) {
+ failed = vlan;
+ goto err_vlan;
+ }
}
port->mcast.filter_handle = filter_handle;
port->mcast.fwd_handle = fwd_handle;
return 0;
+
+err_vlan:
+ xa_for_each(&port->vlans, index, vlan) {
+ if (vlan == failed)
+ break;
+
+ mlx5_esw_bridge_vlan_mcast_cleanup(vlan);
+ }
+ mlx5_del_flow_rules(fwd_handle);
+err_fwd:
+ mlx5_del_flow_rules(filter_handle);
+ return err;
}
static void mlx5_esw_bridge_port_mcast_fhs_cleanup(struct mlx5_esw_bridge_port *port)
{
+ struct mlx5_esw_bridge_vlan *vlan;
+ unsigned long index;
+
+ xa_for_each(&port->vlans, index, vlan)
+ mlx5_esw_bridge_vlan_mcast_cleanup(vlan);
+
if (port->mcast.fwd_handle)
mlx5_del_flow_rules(port->mcast.fwd_handle);
port->mcast.fwd_handle = NULL;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_priv.h b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_priv.h
index 7fdd719f363c..36ff32001ce8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_priv.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/bridge_priv.h
@@ -83,17 +83,31 @@ static_assert(MLX5_ESW_BRIDGE_EGRESS_TABLE_SIZE == 524288);
#define MLX5_ESW_BRIDGE_MCAST_TABLE_FILTER_GRP_SIZE 1
#define MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_SIZE 1
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_SIZE 4095
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_SIZE MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_SIZE
#define MLX5_ESW_BRIDGE_MCAST_TABLE_FILTER_GRP_IDX_FROM 0
#define MLX5_ESW_BRIDGE_MCAST_TABLE_FILTER_GRP_IDX_TO \
(MLX5_ESW_BRIDGE_MCAST_TABLE_FILTER_GRP_SIZE - 1)
-#define MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_IDX_FROM \
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_FROM \
(MLX5_ESW_BRIDGE_MCAST_TABLE_FILTER_GRP_IDX_TO + 1)
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_TO \
+ (MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_FROM + \
+ MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_SIZE - 1)
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_FROM \
+ (MLX5_ESW_BRIDGE_MCAST_TABLE_VLAN_GRP_IDX_TO + 1)
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_TO \
+ (MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_FROM + \
+ MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_SIZE - 1)
+#define MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_IDX_FROM \
+ (MLX5_ESW_BRIDGE_MCAST_TABLE_QINQ_GRP_IDX_TO + 1)
#define MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_IDX_TO \
(MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_IDX_FROM + \
MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_SIZE - 1)
#define MLX5_ESW_BRIDGE_MCAST_TABLE_SIZE \
(MLX5_ESW_BRIDGE_MCAST_TABLE_FWD_GRP_IDX_TO + 1)
+static_assert(MLX5_ESW_BRIDGE_MCAST_TABLE_SIZE == 8192);
+
enum {
MLX5_ESW_BRIDGE_LEVEL_INGRESS_TABLE,
MLX5_ESW_BRIDGE_LEVEL_EGRESS_TABLE,
@@ -144,6 +158,7 @@ struct mlx5_esw_bridge_vlan {
struct mlx5_pkt_reformat *pkt_reformat_push;
struct mlx5_pkt_reformat *pkt_reformat_pop;
struct mlx5_modify_hdr *pkt_mod_hdr_push_mark;
+ struct mlx5_flow_handle *mcast_handle;
};
struct mlx5_esw_bridge_port {
@@ -155,6 +170,8 @@ struct mlx5_esw_bridge_port {
struct {
struct mlx5_flow_table *ft;
struct mlx5_flow_group *filter_fg;
+ struct mlx5_flow_group *vlan_fg;
+ struct mlx5_flow_group *qinq_fg;
struct mlx5_flow_group *fwd_fg;
struct mlx5_flow_handle *filter_handle;
@@ -188,6 +205,9 @@ struct mlx5_flow_table *mlx5_esw_bridge_table_create(int max_fte, u32 level,
int mlx5_esw_bridge_port_mcast_init(struct mlx5_esw_bridge_port *port);
void mlx5_esw_bridge_port_mcast_cleanup(struct mlx5_esw_bridge_port *port);
+int mlx5_esw_bridge_vlan_mcast_init(u16 vlan_proto, struct mlx5_esw_bridge_port *port,
+ struct mlx5_esw_bridge_vlan *vlan);
+void mlx5_esw_bridge_vlan_mcast_cleanup(struct mlx5_esw_bridge_vlan *vlan);
int mlx5_esw_bridge_mcast_enable(struct mlx5_esw_bridge *bridge);
void mlx5_esw_bridge_mcast_disable(struct mlx5_esw_bridge *bridge);
--
2.39.2
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