Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 201 insertions, 0 deletions

diff --git a/src/spdk/dpdk/lib/librte_fib/rte_fib6.h b/src/spdk/dpdk/lib/librte_fib/rte_fib6.h
new file mode 100644
index 000000000..66c71c84c
--- /dev/null
+++ b/src/spdk/dpdk/lib/librte_fib/rte_fib6.h
@@ -0,0 +1,201 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#ifndef _RTE_FIB6_H_
+#define _RTE_FIB6_H_
+
+/**
+ * @file
+ * FIB (Forwarding information base) implementation
+ * for IPv6 Longest Prefix Match
+ */
+
+#include <rte_compat.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define RTE_FIB6_IPV6_ADDR_SIZE		16
+/** Maximum depth value possible for IPv6 FIB. */
+#define RTE_FIB6_MAXDEPTH       128
+
+struct rte_fib6;
+struct rte_rib6;
+
+/** Type of FIB struct */
+enum rte_fib6_type {
+	RTE_FIB6_DUMMY,		/**< RIB6 tree based FIB */
+	RTE_FIB6_TRIE,		/**< TRIE based fib  */
+	RTE_FIB6_TYPE_MAX
+};
+
+/** Modify FIB function */
+typedef int (*rte_fib6_modify_fn_t)(struct rte_fib6 *fib,
+	const uint8_t ip[RTE_FIB6_IPV6_ADDR_SIZE], uint8_t depth,
+	uint64_t next_hop, int op);
+/** FIB bulk lookup function */
+typedef void (*rte_fib6_lookup_fn_t)(void *fib,
+	uint8_t ips[][RTE_FIB6_IPV6_ADDR_SIZE],
+	uint64_t *next_hops, const unsigned int n);
+
+enum rte_fib6_op {
+	RTE_FIB6_ADD,
+	RTE_FIB6_DEL,
+};
+
+enum rte_fib_trie_nh_sz {
+	RTE_FIB6_TRIE_2B = 1,
+	RTE_FIB6_TRIE_4B,
+	RTE_FIB6_TRIE_8B
+};
+
+/** FIB configuration structure */
+struct rte_fib6_conf {
+	enum rte_fib6_type type; /**< Type of FIB struct */
+	/** Default value returned on lookup if there is no route */
+	uint64_t default_nh;
+	int	max_routes;
+	union {
+		struct {
+			enum rte_fib_trie_nh_sz nh_sz;
+			uint32_t	num_tbl8;
+		} trie;
+	};
+};
+
+/**
+ * Create FIB
+ *
+ * @param name
+ *  FIB name
+ * @param socket_id
+ *  NUMA socket ID for FIB table memory allocation
+ * @param conf
+ *  Structure containing the configuration
+ * @return
+ *  Handle to FIB object on success
+ *  NULL otherwise with rte_errno set to an appropriate values.
+ */
+__rte_experimental
+struct rte_fib6 *
+rte_fib6_create(const char *name, int socket_id, struct rte_fib6_conf *conf);
+
+/**
+ * Find an existing FIB object and return a pointer to it.
+ *
+ * @param name
+ *  Name of the fib object as passed to rte_fib6_create()
+ * @return
+ *  Pointer to fib object or NULL if object not found with rte_errno
+ *  set appropriately. Possible rte_errno values include:
+ *   - ENOENT - required entry not available to return.
+ */
+__rte_experimental
+struct rte_fib6 *
+rte_fib6_find_existing(const char *name);
+
+/**
+ * Free an FIB object.
+ *
+ * @param fib
+ *   FIB object handle
+ * @return
+ *   None
+ */
+__rte_experimental
+void
+rte_fib6_free(struct rte_fib6 *fib);
+
+/**
+ * Add a route to the FIB.
+ *
+ * @param fib
+ *   FIB object handle
+ * @param ip
+ *   IPv6 prefix address to be added to the FIB
+ * @param depth
+ *   Prefix length
+ * @param next_hop
+ *   Next hop to be added to the FIB
+ * @return
+ *   0 on success, negative value otherwise
+ */
+__rte_experimental
+int
+rte_fib6_add(struct rte_fib6 *fib, const uint8_t ip[RTE_FIB6_IPV6_ADDR_SIZE],
+	uint8_t depth, uint64_t next_hop);
+
+/**
+ * Delete a rule from the FIB.
+ *
+ * @param fib
+ *   FIB object handle
+ * @param ip
+ *   IPv6 prefix address to be deleted from the FIB
+ * @param depth
+ *   Prefix length
+ * @return
+ *   0 on success, negative value otherwise
+ */
+__rte_experimental
+int
+rte_fib6_delete(struct rte_fib6 *fib,
+	const uint8_t ip[RTE_FIB6_IPV6_ADDR_SIZE], uint8_t depth);
+
+/**
+ * Lookup multiple IP addresses in the FIB.
+ *
+ * @param fib
+ *   FIB object handle
+ * @param ips
+ *   Array of IPv6s to be looked up in the FIB
+ * @param next_hops
+ *   Next hop of the most specific rule found for IP.
+ *   This is an array of eight byte values.
+ *   If the lookup for the given IP failed, then corresponding element would
+ *   contain default nexthop value configured for a FIB.
+ * @param n
+ *   Number of elements in ips (and next_hops) array to lookup.
+ *  @return
+ *   -EINVAL for incorrect arguments, otherwise 0
+ */
+__rte_experimental
+int
+rte_fib6_lookup_bulk(struct rte_fib6 *fib,
+	uint8_t ips[][RTE_FIB6_IPV6_ADDR_SIZE],
+	uint64_t *next_hops, int n);
+
+/**
+ * Get pointer to the dataplane specific struct
+ *
+ * @param fib
+ *   FIB6 object handle
+ * @return
+ *   Pointer on the dataplane struct on success
+ *   NULL othervise
+ */
+__rte_experimental
+void *
+rte_fib6_get_dp(struct rte_fib6 *fib);
+
+/**
+ * Get pointer to the RIB6
+ *
+ * @param fib
+ *   FIB object handle
+ * @return
+ *   Pointer on the RIB6 on success
+ *   NULL othervise
+ */
+__rte_experimental
+struct rte_rib6 *
+rte_fib6_get_rib(struct rte_fib6 *fib);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_FIB6_H_ */