--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * 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 Intel Corporation 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 _VMXNET3_RING_H_
+#define _VMXNET3_RING_H_
+
+#define VMXNET3_RX_CMDRING_SIZE 2
+
+#define VMXNET3_DRIVER_VERSION_NUM 0x01012000
+
+/* Default ring size */
+#define VMXNET3_DEF_TX_RING_SIZE 512
+#define VMXNET3_DEF_RX_RING_SIZE 128
+
+#define VMXNET3_SUCCESS 0
+#define VMXNET3_FAIL -1
+
+#define TRUE 1
+#define FALSE 0
+
+
+typedef struct vmxnet3_buf_info {
+ uint16_t len;
+ struct rte_mbuf *m;
+ uint64_t bufPA;
+} vmxnet3_buf_info_t;
+
+typedef struct vmxnet3_cmd_ring {
+ vmxnet3_buf_info_t *buf_info;
+ uint32_t size;
+ uint32_t next2fill;
+ uint32_t next2comp;
+ uint8_t gen;
+ uint8_t rid;
+ Vmxnet3_GenericDesc *base;
+ uint64_t basePA;
+} vmxnet3_cmd_ring_t;
+
+static inline void
+vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring)
+{
+ ring->next2fill++;
+ if (unlikely(ring->next2fill == ring->size)) {
+ ring->next2fill = 0;
+ ring->gen = (uint8_t)(ring->gen ^ 1);
+ }
+}
+
+static inline void
+vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring)
+{
+ VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size);
+}
+
+static inline uint32_t
+vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring)
+{
+ return (ring->next2comp > ring->next2fill ? 0 : ring->size) +
+ ring->next2comp - ring->next2fill - 1;
+}
+
+static inline bool
+vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring)
+{
+ return ring->next2comp == ring->next2fill;
+}
+
+typedef struct vmxnet3_comp_ring {
+ uint32_t size;
+ uint32_t next2proc;
+ uint8_t gen;
+ uint8_t intr_idx;
+ Vmxnet3_GenericDesc *base;
+ uint64_t basePA;
+} vmxnet3_comp_ring_t;
+
+struct vmxnet3_data_ring {
+ struct Vmxnet3_TxDataDesc *base;
+ uint32_t size;
+ uint64_t basePA;
+};
+
+static inline void
+vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring)
+{
+ ring->next2proc++;
+ if (unlikely(ring->next2proc == ring->size)) {
+ ring->next2proc = 0;
+ ring->gen = (uint8_t)(ring->gen ^ 1);
+ }
+}
+
+struct vmxnet3_txq_stats {
+ uint64_t drop_total; /* # of pkts dropped by the driver,
+ * the counters below track droppings due to
+ * different reasons
+ */
+ uint64_t drop_too_many_segs;
+ uint64_t drop_tso;
+ uint64_t tx_ring_full;
+};
+
+typedef struct vmxnet3_tx_queue {
+ struct vmxnet3_hw *hw;
+ struct vmxnet3_cmd_ring cmd_ring;
+ struct vmxnet3_comp_ring comp_ring;
+ struct vmxnet3_data_ring data_ring;
+ uint32_t qid;
+ struct Vmxnet3_TxQueueDesc *shared;
+ struct vmxnet3_txq_stats stats;
+ bool stopped;
+ uint16_t queue_id; /**< Device TX queue index. */
+ uint8_t port_id; /**< Device port identifier. */
+} vmxnet3_tx_queue_t;
+
+struct vmxnet3_rxq_stats {
+ uint64_t drop_total;
+ uint64_t drop_err;
+ uint64_t drop_fcs;
+ uint64_t rx_buf_alloc_failure;
+};
+
+typedef struct vmxnet3_rx_queue {
+ struct rte_mempool *mp;
+ struct vmxnet3_hw *hw;
+ struct vmxnet3_cmd_ring cmd_ring[VMXNET3_RX_CMDRING_SIZE];
+ struct vmxnet3_comp_ring comp_ring;
+ uint32_t qid1;
+ uint32_t qid2;
+ Vmxnet3_RxQueueDesc *shared;
+ struct rte_mbuf *start_seg;
+ struct rte_mbuf *last_seg;
+ struct vmxnet3_rxq_stats stats;
+ bool stopped;
+ uint16_t queue_id; /**< Device RX queue index. */
+ uint8_t port_id; /**< Device port identifier. */
+} vmxnet3_rx_queue_t;
+
+#endif /* _VMXNET3_RING_H_ */
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