1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api_private.h b/drivers/net/ethernet/microchip/vcap/vcap_api_private.h
new file mode 100644
index 000000000000..4fd21da97679
--- /dev/null
+++ b/drivers/net/ethernet/microchip/vcap/vcap_api_private.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries.
+ * Microchip VCAP API
+ */
+
+#ifndef __VCAP_API_PRIVATE__
+#define __VCAP_API_PRIVATE__
+
+#include <linux/types.h>
+
+#include "vcap_api.h"
+#include "vcap_api_client.h"
+
+#define to_intrule(rule) container_of((rule), struct vcap_rule_internal, data)
+
+/* Private VCAP API rule data */
+struct vcap_rule_internal {
+	struct vcap_rule data; /* provided by the client */
+	struct list_head list; /* the vcap admin list of rules */
+	struct vcap_admin *admin; /* vcap hw instance */
+	struct net_device *ndev;  /* the interface that the rule applies to */
+	struct vcap_control *vctrl; /* the client control */
+	u32 sort_key;  /* defines the position in the VCAP */
+	int keyset_sw;  /* subwords in a keyset */
+	int actionset_sw;  /* subwords in an actionset */
+	int keyset_sw_regs;  /* registers in a subword in an keyset */
+	int actionset_sw_regs;  /* registers in a subword in an actionset */
+	int size; /* the size of the rule: max(entry, action) */
+	u32 addr; /* address in the VCAP at insertion */
+	u32 counter_id; /* counter id (if a dedicated counter is available) */
+	struct vcap_counter counter; /* last read counter value */
+};
+
+/* Bit iterator for the VCAP cache streams */
+struct vcap_stream_iter {
+	u32 offset; /* bit offset from the stream start */
+	u32 sw_width; /* subword width in bits */
+	u32 regs_per_sw; /* registers per subword */
+	u32 reg_idx; /* current register index */
+	u32 reg_bitpos; /* bit offset in current register */
+	const struct vcap_typegroup *tg; /* current typegroup */
+};
+
+/* Check that the control has a valid set of callbacks */
+int vcap_api_check(struct vcap_control *ctrl);
+/* Make a shallow copy of the rule without the fields */
+struct vcap_rule_internal *vcap_dup_rule(struct vcap_rule_internal *ri);
+/* Erase the VCAP cache area used or encoding and decoding */
+void vcap_erase_cache(struct vcap_rule_internal *ri);
+
+/* Iterator functionality */
+
+void vcap_iter_init(struct vcap_stream_iter *itr, int sw_width,
+		    const struct vcap_typegroup *tg, u32 offset);
+void vcap_iter_next(struct vcap_stream_iter *itr);
+void vcap_iter_set(struct vcap_stream_iter *itr, int sw_width,
+		   const struct vcap_typegroup *tg, u32 offset);
+void vcap_iter_update(struct vcap_stream_iter *itr);
+
+/* Keyset and keyfield functionality */
+
+/* Return the number of keyfields in the keyset */
+int vcap_keyfield_count(struct vcap_control *vctrl,
+			enum vcap_type vt, enum vcap_keyfield_set keyset);
+/* Return the typegroup table for the matching keyset (using subword size) */
+const struct vcap_typegroup *
+vcap_keyfield_typegroup(struct vcap_control *vctrl,
+			enum vcap_type vt, enum vcap_keyfield_set keyset);
+/* Return the list of keyfields for the keyset */
+const struct vcap_field *vcap_keyfields(struct vcap_control *vctrl,
+					enum vcap_type vt,
+					enum vcap_keyfield_set keyset);
+
+/* Actionset and actionfield functionality */
+
+/* Return the actionset information for the actionset */
+const struct vcap_set *
+vcap_actionfieldset(struct vcap_control *vctrl,
+		    enum vcap_type vt, enum vcap_actionfield_set actionset);
+/* Return the number of actionfields in the actionset */
+int vcap_actionfield_count(struct vcap_control *vctrl,
+			   enum vcap_type vt,
+			   enum vcap_actionfield_set actionset);
+/* Return the typegroup table for the matching actionset (using subword size) */
+const struct vcap_typegroup *
+vcap_actionfield_typegroup(struct vcap_control *vctrl, enum vcap_type vt,
+			   enum vcap_actionfield_set actionset);
+/* Return the list of actionfields for the actionset */
+const struct vcap_field *
+vcap_actionfields(struct vcap_control *vctrl,
+		  enum vcap_type vt, enum vcap_actionfield_set actionset);
+/* Map actionset id to a string with the actionset name */
+const char *vcap_actionset_name(struct vcap_control *vctrl,
+				enum vcap_actionfield_set actionset);
+/* Map key field id to a string with the key name */
+const char *vcap_actionfield_name(struct vcap_control *vctrl,
+				  enum vcap_action_field action);
+
+/* Read key data from a VCAP address and discover if there are any rule keysets
+ * here
+ */
+int vcap_addr_keysets(struct vcap_control *vctrl, struct net_device *ndev,
+		      struct vcap_admin *admin, int addr,
+		      struct vcap_keyset_list *kslist);
+
+/* Verify that the typegroup information, subword count, keyset and type id
+ * are in sync and correct, return the list of matchin keysets
+ */
+int vcap_find_keystream_keysets(struct vcap_control *vctrl, enum vcap_type vt,
+				u32 *keystream, u32 *mskstream, bool mask,
+				int sw_max, struct vcap_keyset_list *kslist);
+
+#endif /* __VCAP_API_PRIVATE__ */