Imported Upstream version 16.04

Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757
Signed-off-by: C.J. Collier <cjcollier@linuxfoundation.org>

1 files changed, 160 insertions, 0 deletions

diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
new file mode 100644
index 00000000..ba6f01e6
--- /dev/null
+++ b/drivers/net/ena/ena_ethdev.h
@@ -0,0 +1,160 @@
+/*-
+* BSD LICENSE
+*
+* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions
+* are met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+* * Redistributions in binary form must reproduce the above copyright
+* notice, this list of conditions and the following disclaimer in
+* the documentation and/or other materials provided with the
+* distribution.
+* * Neither the name of copyright holder nor the names of its
+* contributors may be used to endorse or promote products derived
+* from this software without specific prior written permission.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef _ENA_ETHDEV_H_
+#define _ENA_ETHDEV_H_
+
+#include <rte_pci.h>
+
+#include "ena_com.h"
+
+#define ENA_REGS_BAR	0
+#define ENA_MEM_BAR	2
+
+#define ENA_MAX_NUM_QUEUES	128
+
+#define ENA_DEFAULT_TX_SW_DESCS	(1024)
+#define ENA_DEFAULT_TX_HW_DESCS	(1024)
+#define ENA_DEFAULT_RING_SIZE	(1024)
+
+#define ENA_MIN_FRAME_LEN	64
+
+#define ENA_NAME_MAX_LEN     20
+#define ENA_IRQNAME_SIZE     40
+
+#define ENA_PKT_MAX_BUFS     17
+
+#define	ENA_CIRC_COUNT(head, tail, size)				\
+	(((uint16_t)((uint16_t)(head) - (uint16_t)(tail))) & ((size) - 1))
+
+#define ENA_CIRC_INC(index, step, size)					\
+	((uint16_t)(index) + (uint16_t)(step))
+#define	ENA_CIRC_INC_WRAP(index, step, size)				\
+	(((uint16_t)(index) + (uint16_t)(step))	& ((size) - 1))
+
+#define	ENA_TX_RING_IDX_NEXT(idx, ring_size)				\
+		ENA_CIRC_INC_WRAP(idx, 1, ring_size)
+#define	ENA_RX_RING_IDX_NEXT(idx, ring_size)				\
+		ENA_CIRC_INC_WRAP(idx, 1, ring_size)
+
+struct ena_adapter;
+
+enum ena_ring_type {
+	ENA_RING_TYPE_RX = 1,
+	ENA_RING_TYPE_TX = 2,
+};
+
+struct ena_tx_buffer {
+	struct rte_mbuf *mbuf;
+	unsigned int tx_descs;
+	unsigned int num_of_bufs;
+	struct ena_com_buf bufs[ENA_PKT_MAX_BUFS];
+};
+
+struct ena_ring {
+	u16 next_to_use;
+	u16 next_to_clean;
+
+	enum ena_ring_type type;
+	enum ena_admin_placement_policy_type tx_mem_queue_type;
+	/* Holds the empty requests for TX OOO completions */
+	uint16_t *empty_tx_reqs;
+	union {
+		struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */
+		struct rte_mbuf **rx_buffer_info; /* contex of rx packet */
+	};
+	unsigned int ring_size; /* number of tx/rx_buffer_info's entries */
+
+	struct ena_com_io_cq *ena_com_io_cq;
+	struct ena_com_io_sq *ena_com_io_sq;
+
+	struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS]
+						__rte_cache_aligned;
+
+	struct rte_mempool *mb_pool;
+	unsigned int port_id;
+	unsigned int id;
+	/* Max length PMD can push to device for LLQ */
+	uint8_t tx_max_header_size;
+	int configured;
+	struct ena_adapter *adapter;
+} __rte_cache_aligned;
+
+enum ena_adapter_state {
+	ENA_ADAPTER_STATE_FREE    = 0,
+	ENA_ADAPTER_STATE_INIT    = 1,
+	ENA_ADAPTER_STATE_RUNNING  = 2,
+	ENA_ADAPTER_STATE_STOPPED = 3,
+	ENA_ADAPTER_STATE_CONFIG  = 4,
+};
+
+struct ena_driver_stats {
+	rte_atomic64_t ierrors;
+	rte_atomic64_t oerrors;
+	rte_atomic64_t imcasts;
+	rte_atomic64_t rx_nombuf;
+};
+
+/* board specific private data structure */
+struct ena_adapter {
+	/* OS defined structs */
+	struct rte_pci_device *pdev;
+	struct rte_eth_dev_data *rte_eth_dev_data;
+	struct rte_eth_dev *rte_dev;
+
+	struct ena_com_dev ena_dev __rte_cache_aligned;
+
+	/* TX */
+	struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
+	int tx_ring_size;
+
+	/* RX */
+	struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
+	int rx_ring_size;
+
+	u16 num_queues;
+	u16 max_mtu;
+
+	int id_number;
+	char name[ENA_NAME_MAX_LEN];
+	u8 mac_addr[ETHER_ADDR_LEN];
+
+	void *regs;
+	void *dev_mem_base;
+
+	struct ena_driver_stats *drv_stats;
+	enum ena_adapter_state state;
+
+};
+
+#endif /* _ENA_ETHDEV_H_ */