1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
8 #include "ice_ethdev.h"
10 #define ICE_ALIGN_RING_DESC 32
11 #define ICE_MIN_RING_DESC 64
12 #define ICE_MAX_RING_DESC 4096
13 #define ICE_DMA_MEM_ALIGN 4096
14 #define ICE_RING_BASE_ALIGN 128
16 #define ICE_RX_MAX_BURST 32
17 #define ICE_TX_MAX_BURST 32
19 #define ICE_CHK_Q_ENA_COUNT 100
20 #define ICE_CHK_Q_ENA_INTERVAL_US 100
22 #ifdef RTE_LIBRTE_ICE_16BYTE_RX_DESC
23 #define ice_rx_desc ice_16byte_rx_desc
25 #define ice_rx_desc ice_32byte_rx_desc
28 #define ICE_SUPPORT_CHAIN_NUM 5
30 #define ICE_TD_CMD ICE_TX_DESC_CMD_EOP
32 #define ICE_VPMD_RX_BURST 32
33 #define ICE_VPMD_TX_BURST 32
34 #define ICE_RXQ_REARM_THRESH 32
35 #define ICE_MAX_RX_BURST ICE_RXQ_REARM_THRESH
36 #define ICE_TX_MAX_FREE_BUF_SZ 64
37 #define ICE_DESCS_PER_LOOP 4
39 typedef void (*ice_rx_release_mbufs_t)(struct ice_rx_queue *rxq);
40 typedef void (*ice_tx_release_mbufs_t)(struct ice_tx_queue *txq);
43 struct rte_mbuf *mbuf;
47 struct rte_mempool *mp; /* mbuf pool to populate RX ring */
48 volatile union ice_rx_desc *rx_ring;/* RX ring virtual address */
49 rte_iova_t rx_ring_dma; /* RX ring DMA address */
50 struct ice_rx_entry *sw_ring; /* address of RX soft ring */
51 uint16_t nb_rx_desc; /* number of RX descriptors */
52 uint16_t rx_free_thresh; /* max free RX desc to hold */
53 uint16_t rx_tail; /* current value of tail */
54 uint16_t nb_rx_hold; /* number of held free RX desc */
55 struct rte_mbuf *pkt_first_seg; /**< first segment of current packet */
56 struct rte_mbuf *pkt_last_seg; /**< last segment of current packet */
57 uint16_t rx_nb_avail; /**< number of staged packets ready */
58 uint16_t rx_next_avail; /**< index of next staged packets */
59 uint16_t rx_free_trigger; /**< triggers rx buffer allocation */
60 struct rte_mbuf fake_mbuf; /**< dummy mbuf */
61 struct rte_mbuf *rx_stage[ICE_RX_MAX_BURST * 2];
63 uint16_t rxrearm_nb; /**< number of remaining to be re-armed */
64 uint16_t rxrearm_start; /**< the idx we start the re-arming from */
65 uint64_t mbuf_initializer; /**< value to init mbufs */
67 uint8_t port_id; /* device port ID */
68 uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
69 uint16_t queue_id; /* RX queue index */
70 uint16_t reg_idx; /* RX queue register index */
71 uint8_t drop_en; /* if not 0, set register bit */
72 volatile uint8_t *qrx_tail; /* register address of tail */
73 struct ice_vsi *vsi; /* the VSI this queue belongs to */
74 uint16_t rx_buf_len; /* The packet buffer size */
75 uint16_t rx_hdr_len; /* The header buffer size */
76 uint16_t max_pkt_len; /* Maximum packet length */
77 bool q_set; /* indicate if rx queue has been configured */
78 bool rx_deferred_start; /* don't start this queue in dev start */
79 ice_rx_release_mbufs_t rx_rel_mbufs;
83 struct rte_mbuf *mbuf;
89 uint16_t nb_tx_desc; /* number of TX descriptors */
90 rte_iova_t tx_ring_dma; /* TX ring DMA address */
91 volatile struct ice_tx_desc *tx_ring; /* TX ring virtual address */
92 struct ice_tx_entry *sw_ring; /* virtual address of SW ring */
93 uint16_t tx_tail; /* current value of tail register */
94 volatile uint8_t *qtx_tail; /* register address of tail */
95 uint16_t nb_tx_used; /* number of TX desc used since RS bit set */
96 /* index to last TX descriptor to have been cleaned */
97 uint16_t last_desc_cleaned;
98 /* Total number of TX descriptors ready to be allocated. */
100 /* Start freeing TX buffers if there are less free descriptors than
103 uint16_t tx_free_thresh;
104 /* Number of TX descriptors to use before RS bit is set. */
105 uint16_t tx_rs_thresh;
106 uint8_t pthresh; /**< Prefetch threshold register. */
107 uint8_t hthresh; /**< Host threshold register. */
108 uint8_t wthresh; /**< Write-back threshold reg. */
109 uint8_t port_id; /* Device port identifier. */
110 uint16_t queue_id; /* TX queue index. */
111 uint32_t q_teid; /* TX schedule node id. */
114 struct ice_vsi *vsi; /* the VSI this queue belongs to */
117 bool tx_deferred_start; /* don't start this queue in dev start */
118 bool q_set; /* indicate if tx queue has been configured */
119 ice_tx_release_mbufs_t tx_rel_mbufs;
122 /* Offload features */
123 union ice_tx_offload {
126 uint64_t l2_len:7; /* L2 (MAC) Header Length. */
127 uint64_t l3_len:9; /* L3 (IP) Header Length. */
128 uint64_t l4_len:8; /* L4 Header Length. */
129 uint64_t tso_segsz:16; /* TCP TSO segment size */
130 uint64_t outer_l2_len:8; /* outer L2 Header Length */
131 uint64_t outer_l3_len:16; /* outer L3 Header Length */
135 int ice_rx_queue_setup(struct rte_eth_dev *dev,
138 unsigned int socket_id,
139 const struct rte_eth_rxconf *rx_conf,
140 struct rte_mempool *mp);
141 int ice_tx_queue_setup(struct rte_eth_dev *dev,
144 unsigned int socket_id,
145 const struct rte_eth_txconf *tx_conf);
146 int ice_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
147 int ice_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
148 int ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
149 int ice_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
150 void ice_rx_queue_release(void *rxq);
151 void ice_tx_queue_release(void *txq);
152 void ice_clear_queues(struct rte_eth_dev *dev);
153 void ice_free_queues(struct rte_eth_dev *dev);
154 uint16_t ice_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
156 uint16_t ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
158 void ice_set_rx_function(struct rte_eth_dev *dev);
159 uint16_t ice_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
161 void ice_set_tx_function_flag(struct rte_eth_dev *dev,
162 struct ice_tx_queue *txq);
163 void ice_set_tx_function(struct rte_eth_dev *dev);
164 uint32_t ice_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id);
165 void ice_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
166 struct rte_eth_rxq_info *qinfo);
167 void ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
168 struct rte_eth_txq_info *qinfo);
169 int ice_rx_descriptor_status(void *rx_queue, uint16_t offset);
170 int ice_tx_descriptor_status(void *tx_queue, uint16_t offset);
171 void ice_set_default_ptype_table(struct rte_eth_dev *dev);
172 const uint32_t *ice_dev_supported_ptypes_get(struct rte_eth_dev *dev);
174 int ice_rx_vec_dev_check(struct rte_eth_dev *dev);
175 int ice_tx_vec_dev_check(struct rte_eth_dev *dev);
176 int ice_rxq_vec_setup(struct ice_rx_queue *rxq);
177 int ice_txq_vec_setup(struct ice_tx_queue *txq);
178 uint16_t ice_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
180 uint16_t ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
182 uint16_t ice_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
184 uint16_t ice_recv_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts,
186 uint16_t ice_recv_scattered_pkts_vec_avx2(void *rx_queue,
187 struct rte_mbuf **rx_pkts,
189 uint16_t ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
191 #endif /* _ICE_RXTX_H_ */