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path: root/drivers/infiniband/hw/mlx5/fs.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx5/fs.c')
-rw-r--r--drivers/infiniband/hw/mlx5/fs.c276
1 files changed, 269 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/mlx5/fs.c b/drivers/infiniband/hw/mlx5/fs.c
index 3008632a6c20..1e419e080b53 100644
--- a/drivers/infiniband/hw/mlx5/fs.c
+++ b/drivers/infiniband/hw/mlx5/fs.c
@@ -695,8 +695,6 @@ static struct mlx5_ib_flow_prio *_get_prio(struct mlx5_ib_dev *dev,
struct mlx5_flow_table_attr ft_attr = {};
struct mlx5_flow_table *ft;
- if (mlx5_ib_shared_ft_allowed(&dev->ib_dev))
- ft_attr.uid = MLX5_SHARED_RESOURCE_UID;
ft_attr.prio = priority;
ft_attr.max_fte = num_entries;
ft_attr.flags = flags;
@@ -2025,6 +2023,237 @@ static int flow_matcher_cleanup(struct ib_uobject *uobject,
return 0;
}
+static int steering_anchor_create_ft(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_flow_prio *ft_prio,
+ enum mlx5_flow_namespace_type ns_type)
+{
+ struct mlx5_flow_table_attr ft_attr = {};
+ struct mlx5_flow_namespace *ns;
+ struct mlx5_flow_table *ft;
+
+ if (ft_prio->anchor.ft)
+ return 0;
+
+ ns = mlx5_get_flow_namespace(dev->mdev, ns_type);
+ if (!ns)
+ return -EOPNOTSUPP;
+
+ ft_attr.flags = MLX5_FLOW_TABLE_UNMANAGED;
+ ft_attr.uid = MLX5_SHARED_RESOURCE_UID;
+ ft_attr.prio = 0;
+ ft_attr.max_fte = 2;
+ ft_attr.level = 1;
+
+ ft = mlx5_create_flow_table(ns, &ft_attr);
+ if (IS_ERR(ft))
+ return PTR_ERR(ft);
+
+ ft_prio->anchor.ft = ft;
+
+ return 0;
+}
+
+static void steering_anchor_destroy_ft(struct mlx5_ib_flow_prio *ft_prio)
+{
+ if (ft_prio->anchor.ft) {
+ mlx5_destroy_flow_table(ft_prio->anchor.ft);
+ ft_prio->anchor.ft = NULL;
+ }
+}
+
+static int
+steering_anchor_create_fg_drop(struct mlx5_ib_flow_prio *ft_prio)
+{
+ int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
+ struct mlx5_flow_group *fg;
+ void *flow_group_in;
+ int err = 0;
+
+ if (ft_prio->anchor.fg_drop)
+ return 0;
+
+ flow_group_in = kvzalloc(inlen, GFP_KERNEL);
+ if (!flow_group_in)
+ return -ENOMEM;
+
+ MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
+ MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);
+
+ fg = mlx5_create_flow_group(ft_prio->anchor.ft, flow_group_in);
+ if (IS_ERR(fg)) {
+ err = PTR_ERR(fg);
+ goto out;
+ }
+
+ ft_prio->anchor.fg_drop = fg;
+
+out:
+ kvfree(flow_group_in);
+
+ return err;
+}
+
+static void
+steering_anchor_destroy_fg_drop(struct mlx5_ib_flow_prio *ft_prio)
+{
+ if (ft_prio->anchor.fg_drop) {
+ mlx5_destroy_flow_group(ft_prio->anchor.fg_drop);
+ ft_prio->anchor.fg_drop = NULL;
+ }
+}
+
+static int
+steering_anchor_create_fg_goto_table(struct mlx5_ib_flow_prio *ft_prio)
+{
+ int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
+ struct mlx5_flow_group *fg;
+ void *flow_group_in;
+ int err = 0;
+
+ if (ft_prio->anchor.fg_goto_table)
+ return 0;
+
+ flow_group_in = kvzalloc(inlen, GFP_KERNEL);
+ if (!flow_group_in)
+ return -ENOMEM;
+
+ fg = mlx5_create_flow_group(ft_prio->anchor.ft, flow_group_in);
+ if (IS_ERR(fg)) {
+ err = PTR_ERR(fg);
+ goto out;
+ }
+ ft_prio->anchor.fg_goto_table = fg;
+
+out:
+ kvfree(flow_group_in);
+
+ return err;
+}
+
+static void
+steering_anchor_destroy_fg_goto_table(struct mlx5_ib_flow_prio *ft_prio)
+{
+ if (ft_prio->anchor.fg_goto_table) {
+ mlx5_destroy_flow_group(ft_prio->anchor.fg_goto_table);
+ ft_prio->anchor.fg_goto_table = NULL;
+ }
+}
+
+static int
+steering_anchor_create_rule_drop(struct mlx5_ib_flow_prio *ft_prio)
+{
+ struct mlx5_flow_act flow_act = {};
+ struct mlx5_flow_handle *handle;
+
+ if (ft_prio->anchor.rule_drop)
+ return 0;
+
+ flow_act.fg = ft_prio->anchor.fg_drop;
+ flow_act.action = MLX5_FLOW_CONTEXT_ACTION_DROP;
+
+ handle = mlx5_add_flow_rules(ft_prio->anchor.ft, NULL, &flow_act,
+ NULL, 0);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+
+ ft_prio->anchor.rule_drop = handle;
+
+ return 0;
+}
+
+static void steering_anchor_destroy_rule_drop(struct mlx5_ib_flow_prio *ft_prio)
+{
+ if (ft_prio->anchor.rule_drop) {
+ mlx5_del_flow_rules(ft_prio->anchor.rule_drop);
+ ft_prio->anchor.rule_drop = NULL;
+ }
+}
+
+static int
+steering_anchor_create_rule_goto_table(struct mlx5_ib_flow_prio *ft_prio)
+{
+ struct mlx5_flow_destination dest = {};
+ struct mlx5_flow_act flow_act = {};
+ struct mlx5_flow_handle *handle;
+
+ if (ft_prio->anchor.rule_goto_table)
+ return 0;
+
+ flow_act.action = MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
+ flow_act.flags |= FLOW_ACT_IGNORE_FLOW_LEVEL;
+ flow_act.fg = ft_prio->anchor.fg_goto_table;
+
+ dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
+ dest.ft = ft_prio->flow_table;
+
+ handle = mlx5_add_flow_rules(ft_prio->anchor.ft, NULL, &flow_act,
+ &dest, 1);
+ if (IS_ERR(handle))
+ return PTR_ERR(handle);
+
+ ft_prio->anchor.rule_goto_table = handle;
+
+ return 0;
+}
+
+static void
+steering_anchor_destroy_rule_goto_table(struct mlx5_ib_flow_prio *ft_prio)
+{
+ if (ft_prio->anchor.rule_goto_table) {
+ mlx5_del_flow_rules(ft_prio->anchor.rule_goto_table);
+ ft_prio->anchor.rule_goto_table = NULL;
+ }
+}
+
+static int steering_anchor_create_res(struct mlx5_ib_dev *dev,
+ struct mlx5_ib_flow_prio *ft_prio,
+ enum mlx5_flow_namespace_type ns_type)
+{
+ int err;
+
+ err = steering_anchor_create_ft(dev, ft_prio, ns_type);
+ if (err)
+ return err;
+
+ err = steering_anchor_create_fg_drop(ft_prio);
+ if (err)
+ goto destroy_ft;
+
+ err = steering_anchor_create_fg_goto_table(ft_prio);
+ if (err)
+ goto destroy_fg_drop;
+
+ err = steering_anchor_create_rule_drop(ft_prio);
+ if (err)
+ goto destroy_fg_goto_table;
+
+ err = steering_anchor_create_rule_goto_table(ft_prio);
+ if (err)
+ goto destroy_rule_drop;
+
+ return 0;
+
+destroy_rule_drop:
+ steering_anchor_destroy_rule_drop(ft_prio);
+destroy_fg_goto_table:
+ steering_anchor_destroy_fg_goto_table(ft_prio);
+destroy_fg_drop:
+ steering_anchor_destroy_fg_drop(ft_prio);
+destroy_ft:
+ steering_anchor_destroy_ft(ft_prio);
+
+ return err;
+}
+
+static void mlx5_steering_anchor_destroy_res(struct mlx5_ib_flow_prio *ft_prio)
+{
+ steering_anchor_destroy_rule_goto_table(ft_prio);
+ steering_anchor_destroy_rule_drop(ft_prio);
+ steering_anchor_destroy_fg_goto_table(ft_prio);
+ steering_anchor_destroy_fg_drop(ft_prio);
+ steering_anchor_destroy_ft(ft_prio);
+}
+
static int steering_anchor_cleanup(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
@@ -2035,6 +2264,9 @@ static int steering_anchor_cleanup(struct ib_uobject *uobject,
return -EBUSY;
mutex_lock(&obj->dev->flow_db->lock);
+ if (!--obj->ft_prio->anchor.rule_goto_table_ref)
+ steering_anchor_destroy_rule_goto_table(obj->ft_prio);
+
put_flow_table(obj->dev, obj->ft_prio, true);
mutex_unlock(&obj->dev->flow_db->lock);
@@ -2042,6 +2274,24 @@ static int steering_anchor_cleanup(struct ib_uobject *uobject,
return 0;
}
+static void fs_cleanup_anchor(struct mlx5_ib_flow_prio *prio,
+ int count)
+{
+ while (count--)
+ mlx5_steering_anchor_destroy_res(&prio[count]);
+}
+
+void mlx5_ib_fs_cleanup_anchor(struct mlx5_ib_dev *dev)
+{
+ fs_cleanup_anchor(dev->flow_db->prios, MLX5_IB_NUM_FLOW_FT);
+ fs_cleanup_anchor(dev->flow_db->egress_prios, MLX5_IB_NUM_FLOW_FT);
+ fs_cleanup_anchor(dev->flow_db->sniffer, MLX5_IB_NUM_SNIFFER_FTS);
+ fs_cleanup_anchor(dev->flow_db->egress, MLX5_IB_NUM_EGRESS_FTS);
+ fs_cleanup_anchor(dev->flow_db->fdb, MLX5_IB_NUM_FDB_FTS);
+ fs_cleanup_anchor(dev->flow_db->rdma_rx, MLX5_IB_NUM_FLOW_FT);
+ fs_cleanup_anchor(dev->flow_db->rdma_tx, MLX5_IB_NUM_FLOW_FT);
+}
+
static int mlx5_ib_matcher_ns(struct uverbs_attr_bundle *attrs,
struct mlx5_ib_flow_matcher *obj)
{
@@ -2182,21 +2432,31 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_STEERING_ANCHOR_CREATE)(
return -ENOMEM;
mutex_lock(&dev->flow_db->lock);
+
ft_prio = _get_flow_table(dev, priority, ns_type, 0);
if (IS_ERR(ft_prio)) {
- mutex_unlock(&dev->flow_db->lock);
err = PTR_ERR(ft_prio);
goto free_obj;
}
ft_prio->refcount++;
- ft_id = mlx5_flow_table_id(ft_prio->flow_table);
- mutex_unlock(&dev->flow_db->lock);
+
+ if (!ft_prio->anchor.rule_goto_table_ref) {
+ err = steering_anchor_create_res(dev, ft_prio, ns_type);
+ if (err)
+ goto put_flow_table;
+ }
+
+ ft_prio->anchor.rule_goto_table_ref++;
+
+ ft_id = mlx5_flow_table_id(ft_prio->anchor.ft);
err = uverbs_copy_to(attrs, MLX5_IB_ATTR_STEERING_ANCHOR_FT_ID,
&ft_id, sizeof(ft_id));
if (err)
- goto put_flow_table;
+ goto destroy_res;
+
+ mutex_unlock(&dev->flow_db->lock);
uobj->object = obj;
obj->dev = dev;
@@ -2205,8 +2465,10 @@ static int UVERBS_HANDLER(MLX5_IB_METHOD_STEERING_ANCHOR_CREATE)(
return 0;
+destroy_res:
+ --ft_prio->anchor.rule_goto_table_ref;
+ mlx5_steering_anchor_destroy_res(ft_prio);
put_flow_table:
- mutex_lock(&dev->flow_db->lock);
put_flow_table(dev, ft_prio, true);
mutex_unlock(&dev->flow_db->lock);
free_obj: