diff options
Diffstat (limited to 'src/seastar/dpdk/drivers/net/vmxnet3/vmxnet3_ring.h')
| -rw-r--r-- | src/seastar/dpdk/drivers/net/vmxnet3/vmxnet3_ring.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/src/seastar/dpdk/drivers/net/vmxnet3/vmxnet3_ring.h b/src/seastar/dpdk/drivers/net/vmxnet3/vmxnet3_ring.h new file mode 100644 index 000000000..50992349d --- /dev/null +++ b/src/seastar/dpdk/drivers/net/vmxnet3/vmxnet3_ring.h @@ -0,0 +1,156 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2010-2014 Intel Corporation + */ + +#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 + +/* Default rx data ring desc size */ +#define VMXNET3_DEF_RXDATA_DESC_SIZE 256 + +#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; + const struct rte_memzone *mz; + bool stopped; + uint16_t queue_id; /**< Device TX queue index. */ + uint16_t port_id; /**< Device port identifier. */ + uint16_t txdata_desc_size; +} 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; +}; + +struct vmxnet3_rx_data_ring { + uint8_t *base; + uint64_t basePA; + uint32_t size; +}; + +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; + struct vmxnet3_rx_data_ring data_ring; + uint16_t data_desc_size; + uint32_t qid1; + uint32_t qid2; + /* rqID in RCD for buffer from data ring */ + uint32_t data_ring_qid; + Vmxnet3_RxQueueDesc *shared; + struct rte_mbuf *start_seg; + struct rte_mbuf *last_seg; + struct vmxnet3_rxq_stats stats; + const struct rte_memzone *mz; + bool stopped; + uint16_t queue_id; /**< Device RX queue index. */ + uint16_t port_id; /**< Device port identifier. */ +} vmxnet3_rx_queue_t; + +#endif /* _VMXNET3_RING_H_ */ |