1/* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2014 Intel Corporation 3 */ 4 5#ifndef _VMXNET3_RING_H_ 6#define _VMXNET3_RING_H_ 7 8#define VMXNET3_RX_CMDRING_SIZE 2 9 10#define VMXNET3_DRIVER_VERSION_NUM 0x01012000 11 12/* Default ring size */ 13#define VMXNET3_DEF_TX_RING_SIZE 512 14#define VMXNET3_DEF_RX_RING_SIZE 128 15 16/* Default rx data ring desc size */ 17#define VMXNET3_DEF_RXDATA_DESC_SIZE 256 18 19#define VMXNET3_SUCCESS 0 20#define VMXNET3_FAIL -1 21 22#define TRUE 1 23#define FALSE 0 24 25 26typedef struct vmxnet3_buf_info { 27 uint16_t len; 28 struct rte_mbuf *m; 29 uint64_t bufPA; 30} vmxnet3_buf_info_t; 31 32typedef struct vmxnet3_cmd_ring { 33 vmxnet3_buf_info_t *buf_info; 34 uint32_t size; 35 uint32_t next2fill; 36 uint32_t next2comp; 37 uint8_t gen; 38 uint8_t rid; 39 Vmxnet3_GenericDesc *base; 40 uint64_t basePA; 41} vmxnet3_cmd_ring_t; 42 43static inline void 44vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring *ring) 45{ 46 ring->next2fill++; 47 if (unlikely(ring->next2fill == ring->size)) { 48 ring->next2fill = 0; 49 ring->gen = (uint8_t)(ring->gen ^ 1); 50 } 51} 52 53static inline void 54vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring) 55{ 56 VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size); 57} 58 59static inline uint32_t 60vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring *ring) 61{ 62 return (ring->next2comp > ring->next2fill ? 0 : ring->size) + 63 ring->next2comp - ring->next2fill - 1; 64} 65 66static inline bool 67vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring) 68{ 69 return ring->next2comp == ring->next2fill; 70} 71 72typedef struct vmxnet3_comp_ring { 73 uint32_t size; 74 uint32_t next2proc; 75 uint8_t gen; 76 uint8_t intr_idx; 77 Vmxnet3_GenericDesc *base; 78 uint64_t basePA; 79} vmxnet3_comp_ring_t; 80 81struct vmxnet3_data_ring { 82 struct Vmxnet3_TxDataDesc *base; 83 uint32_t size; 84 uint64_t basePA; 85}; 86 87static inline void 88vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring *ring) 89{ 90 ring->next2proc++; 91 if (unlikely(ring->next2proc == ring->size)) { 92 ring->next2proc = 0; 93 ring->gen = (uint8_t)(ring->gen ^ 1); 94 } 95} 96 97struct vmxnet3_txq_stats { 98 uint64_t drop_total; /* # of pkts dropped by the driver, 99 * the counters below track droppings due to 100 * different reasons 101 */ 102 uint64_t drop_too_many_segs; 103 uint64_t drop_tso; 104 uint64_t tx_ring_full; 105}; 106 107typedef struct vmxnet3_tx_queue { 108 struct vmxnet3_hw *hw; 109 struct vmxnet3_cmd_ring cmd_ring; 110 struct vmxnet3_comp_ring comp_ring; 111 struct vmxnet3_data_ring data_ring; 112 uint32_t qid; 113 struct Vmxnet3_TxQueueDesc *shared; 114 struct vmxnet3_txq_stats stats; 115 const struct rte_memzone *mz; 116 bool stopped; 117 uint16_t queue_id; /**< Device TX queue index. */ 118 uint16_t port_id; /**< Device port identifier. */ 119 uint16_t txdata_desc_size; 120} vmxnet3_tx_queue_t; 121 122struct vmxnet3_rxq_stats { 123 uint64_t drop_total; 124 uint64_t drop_err; 125 uint64_t drop_fcs; 126 uint64_t rx_buf_alloc_failure; 127}; 128 129struct vmxnet3_rx_data_ring { 130 uint8_t *base; 131 uint64_t basePA; 132 uint32_t size; 133}; 134 135typedef struct vmxnet3_rx_queue { 136 struct rte_mempool *mp; 137 struct vmxnet3_hw *hw; 138 struct vmxnet3_cmd_ring cmd_ring[VMXNET3_RX_CMDRING_SIZE]; 139 struct vmxnet3_comp_ring comp_ring; 140 struct vmxnet3_rx_data_ring data_ring; 141 uint16_t data_desc_size; 142 uint32_t qid1; 143 uint32_t qid2; 144 /* rqID in RCD for buffer from data ring */ 145 uint32_t data_ring_qid; 146 Vmxnet3_RxQueueDesc *shared; 147 struct rte_mbuf *start_seg; 148 struct rte_mbuf *last_seg; 149 struct vmxnet3_rxq_stats stats; 150 const struct rte_memzone *mz; 151 bool stopped; 152 uint16_t queue_id; /**< Device RX queue index. */ 153 uint16_t port_id; /**< Device port identifier. */ 154} vmxnet3_rx_queue_t; 155 156#endif /* _VMXNET3_RING_H_ */ 157