Initial ODP-DPDK port

- Pulled necessary files from platform/linux-generic into
  platform/linux-dpdk
- Made necessary changes in files to get it compiled with dpdk library
	for eg.,
	* odp_buffer_hdr_t is mapped to struct rte_mbuf
	* All odp_buffer_* maps to rte_* in dpdk
	* necessary initialisations like odp_init_dpdk
	* All packet related changes in odp_packet.c and odp_packet_io.c
	* dpdk support in odp_packet_dpdk.c

Signed-off-by: Vincent Hsu <vincent.hsu@linaro.org>

- Add/modify files to support linux-dpdk compilation in new automake
  environment.
	* Modified configure.ac
	* Added platform/linux-dpdk/Makefile.am
	* Moved all files from platform/linux-dpdk/source to
	  platform/linux-dpdk/.

- Added platform/linux-dpdk/README on how to clone, compile DPDK and
  commands to execute on ODP.
- Made ODP_BUFFER_<TYPES> consistent with linux-generic.
- Removed odp_buffer_is_scatter API to be inline with linux-generic.
- Added platform/linux-dpdk/odp_linux.c to supply the function
  and argument to the pthread created by dpdk.

Signed-off-by: Venkatesh Vivekanandan <venkatesh.vivekanandan@linaro.org>

1 files changed, 90 insertions, 0 deletions

diff --git a/platform/linux-dpdk/include/odp_buffer_pool_internal.h b/platform/linux-dpdk/include/odp_buffer_pool_internal.h
new file mode 100644
index 000000000..1a3665591
--- /dev/null
+++ b/platform/linux-dpdk/include/odp_buffer_pool_internal.h
@@ -0,0 +1,90 @@
+/* Copyright (c) 2013, Linaro Limited
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ */
+
+
+/**
+ * @file
+ *
+ * ODP buffer pool - internal header
+ */
+
+#ifndef ODP_BUFFER_POOL_INTERNAL_H_
+#define ODP_BUFFER_POOL_INTERNAL_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp_std_types.h>
+#include <odp_buffer_pool.h>
+#include <odp_buffer_internal.h>
+#include <odp_align.h>
+#include <odp_hints.h>
+#include <odp_config.h>
+#include <odp_debug.h>
+
+/* for DPDK */
+#include <rte_mempool.h>
+
+/* Use ticketlock instead of spinlock */
+#define POOL_USE_TICKETLOCK
+
+/* Extra error checks */
+/* #define POOL_ERROR_CHECK */
+
+
+#ifdef POOL_USE_TICKETLOCK
+#include <odp_ticketlock.h>
+#else
+#include <odp_spinlock.h>
+#endif
+
+
+struct pool_entry_s {
+#ifdef POOL_USE_TICKETLOCK
+	odp_ticketlock_t        lock ODP_ALIGNED_CACHE;
+#else
+	odp_spinlock_t          lock ODP_ALIGNED_CACHE;
+#endif
+
+	uint64_t                free_bufs;
+	char                    name[ODP_BUFFER_POOL_NAME_LEN];
+
+
+	odp_buffer_pool_t       pool ODP_ALIGNED_CACHE;
+	uintptr_t               buf_base;
+	size_t                  buf_size;
+	size_t                  buf_offset;
+	uint64_t                num_bufs;
+	void                   *pool_base_addr;
+	uint64_t                pool_size;
+	size_t                  payload_size;
+	size_t                  payload_align;
+	int                     buf_type;
+	size_t                  hdr_size;
+};
+
+
+extern void *pool_entry_ptr[];
+
+
+static inline void *get_pool_entry(odp_buffer_pool_t pool_id)
+{
+	return pool_entry_ptr[pool_id];
+}
+
+
+static inline odp_buffer_hdr_t *odp_buf_to_hdr(odp_buffer_t buf)
+{
+	return (odp_buffer_hdr_t *)buf;
+}
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif