mlxsw: spectrum_acl: Add tcam init/fini ops

Add ops to be called on driver instance init and fini.
This is needed in order to be possible to do Spectrum-2 specific init
and fini work.
Signed-off-by: NJiri Pirko <jiri@mellanox.com>
Signed-off-by: NIdo Schimmel <idosch@mellanox.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/spectrum.h

@@ -503,44 +503,14 @@ struct mlxsw_sp_acl_rule_info {
 	unsigned int counter_index;
 };
 
-enum mlxsw_sp_acl_profile {
-	MLXSW_SP_ACL_PROFILE_FLOWER,
-};
-
-struct mlxsw_sp_acl_profile_ops {
-	size_t ruleset_priv_size;
-	int (*ruleset_add)(struct mlxsw_sp *mlxsw_sp,
-			   void *priv, void *ruleset_priv);
-	void (*ruleset_del)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv);
-	int (*ruleset_bind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
-			    struct mlxsw_sp_port *mlxsw_sp_port,
-			    bool ingress);
-	void (*ruleset_unbind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
-			       struct mlxsw_sp_port *mlxsw_sp_port,
-			       bool ingress);
-	u16 (*ruleset_group_id)(void *ruleset_priv);
-	size_t (*rule_priv_size)(struct mlxsw_sp *mlxsw_sp);
-	int (*rule_add)(struct mlxsw_sp *mlxsw_sp,
-			void *ruleset_priv, void *rule_priv,
-			struct mlxsw_sp_acl_rule_info *rulei);
-	void (*rule_del)(struct mlxsw_sp *mlxsw_sp, void *rule_priv);
-	int (*rule_activity_get)(struct mlxsw_sp *mlxsw_sp, void *rule_priv,
-				 bool *activity);
-};
-
-struct mlxsw_sp_acl_ops {
-	size_t priv_size;
-	int (*init)(struct mlxsw_sp *mlxsw_sp, void *priv);
-	void (*fini)(struct mlxsw_sp *mlxsw_sp, void *priv);
-	const struct mlxsw_sp_acl_profile_ops *
-			(*profile_ops)(struct mlxsw_sp *mlxsw_sp,
-				       enum mlxsw_sp_acl_profile profile);
-};
-
 struct mlxsw_sp_acl_block;
 struct mlxsw_sp_acl_ruleset;
 
 /* spectrum_acl.c */
+enum mlxsw_sp_acl_profile {
+	MLXSW_SP_ACL_PROFILE_FLOWER,
+};
+
 struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl);
 struct mlxsw_sp *mlxsw_sp_acl_block_mlxsw_sp(struct mlxsw_sp_acl_block *block);
 unsigned int mlxsw_sp_acl_block_rule_count(struct mlxsw_sp_acl_block *block);
@@ -633,10 +603,15 @@ int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp);
 void mlxsw_sp_acl_fini(struct mlxsw_sp *mlxsw_sp);
 
 /* spectrum_acl_tcam.c */
+struct mlxsw_sp_acl_tcam;
 struct mlxsw_sp_acl_tcam_region;
 
 struct mlxsw_sp_acl_tcam_ops {
 	enum mlxsw_reg_ptar_key_type key_type;
+	size_t priv_size;
+	int (*init)(struct mlxsw_sp *mlxsw_sp, void *priv,
+		    struct mlxsw_sp_acl_tcam *tcam);
+	void (*fini)(struct mlxsw_sp *mlxsw_sp, void *priv);
 	size_t region_priv_size;
 	int (*region_init)(struct mlxsw_sp *mlxsw_sp, void *region_priv,
 			   struct mlxsw_sp_acl_tcam_region *region);

drivers/net/ethernet/mellanox/mlxsw/spectrum1_acl_tcam.c

@@ -58,6 +58,16 @@ struct mlxsw_sp1_acl_tcam_entry {
 	struct mlxsw_sp_acl_ctcam_entry centry;
 };
 
+static int mlxsw_sp1_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv,
+				   struct mlxsw_sp_acl_tcam *tcam)
+{
+	return 0;
+}
+
+static void mlxsw_sp1_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv)
+{
+}
+
 static int
 mlxsw_sp1_acl_ctcam_region_catchall_add(struct mlxsw_sp *mlxsw_sp,
 					struct mlxsw_sp1_acl_tcam_region *region)
@@ -218,6 +228,9 @@ mlxsw_sp1_acl_tcam_entry_activity_get(struct mlxsw_sp *mlxsw_sp,
 
 const struct mlxsw_sp_acl_tcam_ops mlxsw_sp1_acl_tcam_ops = {
 	.key_type		= MLXSW_REG_PTAR_KEY_TYPE_FLEX,
+	.priv_size		= 0,
+	.init			= mlxsw_sp1_acl_tcam_init,
+	.fini			= mlxsw_sp1_acl_tcam_fini,
 	.region_priv_size	= sizeof(struct mlxsw_sp1_acl_tcam_region),
 	.region_init		= mlxsw_sp1_acl_tcam_region_init,
 	.region_fini		= mlxsw_sp1_acl_tcam_region_fini,

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c

@@ -55,7 +55,6 @@ struct mlxsw_sp_acl {
 	struct mlxsw_sp *mlxsw_sp;
 	struct mlxsw_afk *afk;
 	struct mlxsw_sp_fid *dummy_fid;
-	const struct mlxsw_sp_acl_ops *ops;
 	struct rhashtable ruleset_ht;
 	struct list_head rules;
 	struct {
@@ -63,8 +62,7 @@ struct mlxsw_sp_acl {
 		unsigned long interval;	/* ms */
 #define MLXSW_SP_ACL_RULE_ACTIVITY_UPDATE_PERIOD_MS 1000
 	} rule_activity_update;
-	unsigned long priv[0];
-	/* priv has to be always the last item */
+	struct mlxsw_sp_acl_tcam tcam;
 };
 
 struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl)
@@ -340,7 +338,7 @@ mlxsw_sp_acl_ruleset_create(struct mlxsw_sp *mlxsw_sp,
 	if (err)
 		goto err_rhashtable_init;
 
-	err = ops->ruleset_add(mlxsw_sp, acl->priv, ruleset->priv);
+	err = ops->ruleset_add(mlxsw_sp, &acl->tcam, ruleset->priv);
 	if (err)
 		goto err_ops_ruleset_add;
 
@@ -410,7 +408,7 @@ mlxsw_sp_acl_ruleset_lookup(struct mlxsw_sp *mlxsw_sp,
 	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
 	struct mlxsw_sp_acl_ruleset *ruleset;
 
-	ops = acl->ops->profile_ops(mlxsw_sp, profile);
+	ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile);
 	if (!ops)
 		return ERR_PTR(-EINVAL);
 	ruleset = __mlxsw_sp_acl_ruleset_lookup(acl, block, chain_index, ops);
@@ -428,7 +426,7 @@ mlxsw_sp_acl_ruleset_get(struct mlxsw_sp *mlxsw_sp,
 	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
 	struct mlxsw_sp_acl_ruleset *ruleset;
 
-	ops = acl->ops->profile_ops(mlxsw_sp, profile);
+	ops = mlxsw_sp_acl_tcam_profile_ops(mlxsw_sp, profile);
 	if (!ops)
 		return ERR_PTR(-EINVAL);
 
@@ -827,12 +825,13 @@ int mlxsw_sp_acl_rule_get_stats(struct mlxsw_sp *mlxsw_sp,
 
 int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp)
 {
-	const struct mlxsw_sp_acl_ops *acl_ops = &mlxsw_sp_acl_tcam_ops;
 	struct mlxsw_sp_fid *fid;
 	struct mlxsw_sp_acl *acl;
+	size_t alloc_size;
 	int err;
 
-	acl = kzalloc(sizeof(*acl) + acl_ops->priv_size, GFP_KERNEL);
+	alloc_size = sizeof(*acl) + mlxsw_sp_acl_tcam_priv_size(mlxsw_sp);
+	acl = kzalloc(alloc_size, GFP_KERNEL);
 	if (!acl)
 		return -ENOMEM;
 	mlxsw_sp->acl = acl;
@@ -859,12 +858,10 @@ int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp)
 	acl->dummy_fid = fid;
 
 	INIT_LIST_HEAD(&acl->rules);
-	err = acl_ops->init(mlxsw_sp, acl->priv);
+	err = mlxsw_sp_acl_tcam_init(mlxsw_sp, &acl->tcam);
 	if (err)
 		goto err_acl_ops_init;
 
-	acl->ops = acl_ops;
-
 	/* Create the delayed work for the rule activity_update */
 	INIT_DELAYED_WORK(&acl->rule_activity_update.dw,
 			  mlxsw_sp_acl_rul_activity_update_work);
@@ -886,10 +883,9 @@ int mlxsw_sp_acl_init(struct mlxsw_sp *mlxsw_sp)
 void mlxsw_sp_acl_fini(struct mlxsw_sp *mlxsw_sp)
 {
 	struct mlxsw_sp_acl *acl = mlxsw_sp->acl;
-	const struct mlxsw_sp_acl_ops *acl_ops = acl->ops;
 
 	cancel_delayed_work_sync(&mlxsw_sp->acl->rule_activity_update.dw);
-	acl_ops->fini(mlxsw_sp, acl->priv);
+	mlxsw_sp_acl_tcam_fini(mlxsw_sp, &acl->tcam);
 	WARN_ON(!list_empty(&acl->rules));
 	mlxsw_sp_fid_put(acl->dummy_fid);
 	rhashtable_destroy(&acl->ruleset_ht);

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c

@@ -47,17 +47,17 @@
 #include "spectrum_acl_tcam.h"
 #include "core_acl_flex_keys.h"
 
-struct mlxsw_sp_acl_tcam {
-	unsigned long *used_regions; /* bit array */
-	unsigned int max_regions;
-	unsigned long *used_groups;  /* bit array */
-	unsigned int max_groups;
-	unsigned int max_group_size;
-};
+size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp)
+{
+	const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
+
+	return ops->priv_size;
+}
 
-static int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv)
+int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp,
+			   struct mlxsw_sp_acl_tcam *tcam)
 {
-	struct mlxsw_sp_acl_tcam *tcam = priv;
+	const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
 	u64 max_tcam_regions;
 	u64 max_regions;
 	u64 max_groups;
@@ -88,17 +88,26 @@ static int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp, void *priv)
 	tcam->max_groups = max_groups;
 	tcam->max_group_size = MLXSW_CORE_RES_GET(mlxsw_sp->core,
 						 ACL_MAX_GROUP_SIZE);
+
+	err = ops->init(mlxsw_sp, tcam->priv, tcam);
+	if (err)
+		goto err_tcam_init;
+
 	return 0;
 
+err_tcam_init:
+	kfree(tcam->used_groups);
 err_alloc_used_groups:
 	kfree(tcam->used_regions);
 	return err;
 }
 
-static void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp, void *priv)
+void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp,
+			    struct mlxsw_sp_acl_tcam *tcam)
 {
-	struct mlxsw_sp_acl_tcam *tcam = priv;
+	const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
 
+	ops->fini(mlxsw_sp, tcam->priv);
 	kfree(tcam->used_groups);
 	kfree(tcam->used_regions);
 }
@@ -827,10 +836,10 @@ struct mlxsw_sp_acl_tcam_flower_rule {
 
 static int
 mlxsw_sp_acl_tcam_flower_ruleset_add(struct mlxsw_sp *mlxsw_sp,
-				     void *priv, void *ruleset_priv)
+				     struct mlxsw_sp_acl_tcam *tcam,
+				     void *ruleset_priv)
 {
 	struct mlxsw_sp_acl_tcam_flower_ruleset *ruleset = ruleset_priv;
-	struct mlxsw_sp_acl_tcam *tcam = priv;
 
 	return mlxsw_sp_acl_tcam_group_add(mlxsw_sp, tcam, &ruleset->group,
 					   mlxsw_sp_acl_tcam_patterns,
@@ -932,7 +941,7 @@ mlxsw_sp_acl_tcam_profile_ops_arr[] = {
 	[MLXSW_SP_ACL_PROFILE_FLOWER] = &mlxsw_sp_acl_tcam_flower_ops,
 };
 
-static const struct mlxsw_sp_acl_profile_ops *
+const struct mlxsw_sp_acl_profile_ops *
 mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp,
 			      enum mlxsw_sp_acl_profile profile)
 {
@@ -945,10 +954,3 @@ mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp,
 		return NULL;
 	return ops;
 }
-
-const struct mlxsw_sp_acl_ops mlxsw_sp_acl_tcam_ops = {
-	.priv_size		= sizeof(struct mlxsw_sp_acl_tcam),
-	.init			= mlxsw_sp_acl_tcam_init,
-	.fini			= mlxsw_sp_acl_tcam_fini,
-	.profile_ops		= mlxsw_sp_acl_tcam_profile_ops,
-};

drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.h

@@ -42,7 +42,46 @@
 #include "spectrum.h"
 #include "core_acl_flex_keys.h"
 
-extern const struct mlxsw_sp_acl_ops mlxsw_sp_acl_tcam_ops;
+struct mlxsw_sp_acl_tcam {
+	unsigned long *used_regions; /* bit array */
+	unsigned int max_regions;
+	unsigned long *used_groups;  /* bit array */
+	unsigned int max_groups;
+	unsigned int max_group_size;
+	unsigned long priv[0];
+	/* priv has to be always the last item */
+};
+
+size_t mlxsw_sp_acl_tcam_priv_size(struct mlxsw_sp *mlxsw_sp);
+int mlxsw_sp_acl_tcam_init(struct mlxsw_sp *mlxsw_sp,
+			   struct mlxsw_sp_acl_tcam *tcam);
+void mlxsw_sp_acl_tcam_fini(struct mlxsw_sp *mlxsw_sp,
+			    struct mlxsw_sp_acl_tcam *tcam);
+
+struct mlxsw_sp_acl_profile_ops {
+	size_t ruleset_priv_size;
+	int (*ruleset_add)(struct mlxsw_sp *mlxsw_sp,
+			   struct mlxsw_sp_acl_tcam *tcam, void *ruleset_priv);
+	void (*ruleset_del)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv);
+	int (*ruleset_bind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
+			    struct mlxsw_sp_port *mlxsw_sp_port,
+			    bool ingress);
+	void (*ruleset_unbind)(struct mlxsw_sp *mlxsw_sp, void *ruleset_priv,
+			       struct mlxsw_sp_port *mlxsw_sp_port,
+			       bool ingress);
+	u16 (*ruleset_group_id)(void *ruleset_priv);
+	size_t (*rule_priv_size)(struct mlxsw_sp *mlxsw_sp);
+	int (*rule_add)(struct mlxsw_sp *mlxsw_sp,
+			void *ruleset_priv, void *rule_priv,
+			struct mlxsw_sp_acl_rule_info *rulei);
+	void (*rule_del)(struct mlxsw_sp *mlxsw_sp, void *rule_priv);
+	int (*rule_activity_get)(struct mlxsw_sp *mlxsw_sp, void *rule_priv,
+				 bool *activity);
+};
+
+const struct mlxsw_sp_acl_profile_ops *
+mlxsw_sp_acl_tcam_profile_ops(struct mlxsw_sp *mlxsw_sp,
+			      enum mlxsw_sp_acl_profile profile);
 
 #define MLXSW_SP_ACL_TCAM_REGION_BASE_COUNT 16
 #define MLXSW_SP_ACL_TCAM_REGION_RESIZE_STEP 16