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 0x01013000 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 26 typedef struct vmxnet3_buf_info { 27 uint16_t len; 28 struct rte_mbuf *m; 29 uint64_t bufPA; 30 } vmxnet3_buf_info_t; 31 32 typedef 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 43 static inline void vmxnet3_cmd_ring_adv_next2fill(struct vmxnet3_cmd_ring * ring)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 53 static inline void vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring * ring)54vmxnet3_cmd_ring_adv_next2comp(struct vmxnet3_cmd_ring *ring) 55 { 56 VMXNET3_INC_RING_IDX_ONLY(ring->next2comp, ring->size); 57 } 58 59 static inline uint32_t vmxnet3_cmd_ring_desc_avail(struct vmxnet3_cmd_ring * ring)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 66 static inline bool vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring * ring)67vmxnet3_cmd_ring_desc_empty(struct vmxnet3_cmd_ring *ring) 68 { 69 return ring->next2comp == ring->next2fill; 70 } 71 72 typedef 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 81 struct vmxnet3_data_ring { 82 struct Vmxnet3_TxDataDesc *base; 83 uint32_t size; 84 uint64_t basePA; 85 }; 86 87 static inline void vmxnet3_comp_ring_adv_next2proc(struct vmxnet3_comp_ring * ring)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 97 struct 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 }; 106 107 typedef 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; 121 122 struct 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 }; 128 129 struct vmxnet3_rx_data_ring { 130 uint8_t *base; 131 uint64_t basePA; 132 uint32_t size; 133 }; 134 135 typedef 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