1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_client.h b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
new file mode 100644
index 000000000000..78ac4628fc9f
--- /dev/null
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api_client.h
@@ -0,0 +1,194 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries.
+ * Microchip VCAP API
+ */
+
+#ifndef __VCAP_API_CLIENT__
+#define __VCAP_API_CLIENT__
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/flow_offload.h>
+
+#include "vcap_api.h"
+
+/* Client supplied VCAP rule key control part */
+struct vcap_client_keyfield_ctrl {
+	struct list_head list;  /* For insertion into a rule */
+	enum vcap_key_field key;
+	enum vcap_field_type type;
+};
+
+struct vcap_u1_key {
+	u8 value;
+	u8 mask;
+};
+
+struct vcap_u32_key {
+	u32 value;
+	u32 mask;
+};
+
+struct vcap_u48_key {
+	u8 value[6];
+	u8 mask[6];
+};
+
+struct vcap_u56_key {
+	u8 value[7];
+	u8 mask[7];
+};
+
+struct vcap_u64_key {
+	u8 value[8];
+	u8 mask[8];
+};
+
+struct vcap_u72_key {
+	u8 value[9];
+	u8 mask[9];
+};
+
+struct vcap_u112_key {
+	u8 value[14];
+	u8 mask[14];
+};
+
+struct vcap_u128_key {
+	u8 value[16];
+	u8 mask[16];
+};
+
+/* Client supplied VCAP rule field data */
+struct vcap_client_keyfield_data {
+	union {
+		struct vcap_u1_key u1;
+		struct vcap_u32_key u32;
+		struct vcap_u48_key u48;
+		struct vcap_u56_key u56;
+		struct vcap_u64_key u64;
+		struct vcap_u72_key u72;
+		struct vcap_u112_key u112;
+		struct vcap_u128_key u128;
+	};
+};
+
+/* Client supplied VCAP rule key (value, mask) */
+struct vcap_client_keyfield {
+	struct vcap_client_keyfield_ctrl ctrl;
+	struct vcap_client_keyfield_data data;
+};
+
+/* Client supplied VCAP rule action control part */
+struct vcap_client_actionfield_ctrl {
+	struct list_head list;  /* For insertion into a rule */
+	enum vcap_action_field action;
+	enum vcap_field_type type;
+};
+
+struct vcap_u1_action {
+	u8 value;
+};
+
+struct vcap_u32_action {
+	u32 value;
+};
+
+struct vcap_u48_action {
+	u8 value[6];
+};
+
+struct vcap_u56_action {
+	u8 value[7];
+};
+
+struct vcap_u64_action {
+	u8 value[8];
+};
+
+struct vcap_u72_action {
+	u8 value[9];
+};
+
+struct vcap_u112_action {
+	u8 value[14];
+};
+
+struct vcap_u128_action {
+	u8 value[16];
+};
+
+struct vcap_client_actionfield_data {
+	union {
+		struct vcap_u1_action u1;
+		struct vcap_u32_action u32;
+		struct vcap_u48_action u48;
+		struct vcap_u56_action u56;
+		struct vcap_u64_action u64;
+		struct vcap_u72_action u72;
+		struct vcap_u112_action u112;
+		struct vcap_u128_action u128;
+	};
+};
+
+struct vcap_client_actionfield {
+	struct vcap_client_actionfield_ctrl ctrl;
+	struct vcap_client_actionfield_data data;
+};
+
+enum vcap_bit {
+	VCAP_BIT_ANY,
+	VCAP_BIT_0,
+	VCAP_BIT_1
+};
+
+/* VCAP rule operations */
+/* Allocate a rule and fill in the basic information */
+struct vcap_rule *vcap_alloc_rule(struct vcap_control *vctrl,
+				  struct net_device *ndev,
+				  int vcap_chain_id,
+				  enum vcap_user user,
+				  u16 priority,
+				  u32 id);
+/* Free mem of a rule owned by client */
+void vcap_free_rule(struct vcap_rule *rule);
+/* Validate a rule before adding it to the VCAP */
+int vcap_val_rule(struct vcap_rule *rule, u16 l3_proto);
+/* Add rule to a VCAP instance */
+int vcap_add_rule(struct vcap_rule *rule);
+/* Delete rule in a VCAP instance */
+int vcap_del_rule(struct vcap_control *vctrl, struct net_device *ndev, u32 id);
+
+/* Update the keyset for the rule */
+int vcap_set_rule_set_keyset(struct vcap_rule *rule,
+			     enum vcap_keyfield_set keyset);
+/* Update the actionset for the rule */
+int vcap_set_rule_set_actionset(struct vcap_rule *rule,
+				enum vcap_actionfield_set actionset);
+
+/* VCAP rule field operations */
+int vcap_rule_add_key_bit(struct vcap_rule *rule, enum vcap_key_field key,
+			  enum vcap_bit val);
+int vcap_rule_add_key_u32(struct vcap_rule *rule, enum vcap_key_field key,
+			  u32 value, u32 mask);
+int vcap_rule_add_key_u48(struct vcap_rule *rule, enum vcap_key_field key,
+			  struct vcap_u48_key *fieldval);
+int vcap_rule_add_action_bit(struct vcap_rule *rule,
+			     enum vcap_action_field action, enum vcap_bit val);
+int vcap_rule_add_action_u32(struct vcap_rule *rule,
+			     enum vcap_action_field action, u32 value);
+
+/* VCAP lookup operations */
+/* Lookup a vcap instance using chain id */
+struct vcap_admin *vcap_find_admin(struct vcap_control *vctrl, int cid);
+/* Find a rule id with a provided cookie */
+int vcap_lookup_rule_by_cookie(struct vcap_control *vctrl, u64 cookie);
+
+/* Copy to host byte order */
+void vcap_netbytes_copy(u8 *dst, u8 *src, int count);
+
+/* Convert validation error code into tc extact error message */
+void vcap_set_tc_exterr(struct flow_cls_offload *fco, struct vcap_rule *vrule);
+
+#endif /* __VCAP_API_CLIENT__ */