1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2018 Intel Corporation
8 #include "rte_pmd_ice.h"
9 #include "ice_ethdev.h"
11 #define ICE_ALIGN_RING_DESC 32
12 #define ICE_MIN_RING_DESC 64
13 #define ICE_MAX_RING_DESC 4096
14 #define ICE_DMA_MEM_ALIGN 4096
15 #define ICE_RING_BASE_ALIGN 128
17 #define ICE_RX_MAX_BURST 32
18 #define ICE_TX_MAX_BURST 32
20 #define ICE_CHK_Q_ENA_COUNT 100
21 #define ICE_CHK_Q_ENA_INTERVAL_US 100
23 #ifdef RTE_LIBRTE_ICE_16BYTE_RX_DESC
24 #define ice_rx_flex_desc ice_16b_rx_flex_desc
26 #define ice_rx_flex_desc ice_32b_rx_flex_desc
29 #define ICE_SUPPORT_CHAIN_NUM 5
31 #define ICE_TD_CMD ICE_TX_DESC_CMD_EOP
33 #define ICE_VPMD_RX_BURST 32
34 #define ICE_VPMD_TX_BURST 32
35 #define ICE_RXQ_REARM_THRESH 32
36 #define ICE_MAX_RX_BURST ICE_RXQ_REARM_THRESH
37 #define ICE_TX_MAX_FREE_BUF_SZ 64
38 #define ICE_DESCS_PER_LOOP 4
40 typedef void (*ice_rx_release_mbufs_t)(struct ice_rx_queue *rxq);
41 typedef void (*ice_tx_release_mbufs_t)(struct ice_tx_queue *txq);
44 struct rte_mbuf *mbuf;
48 struct rte_mempool *mp; /* mbuf pool to populate RX ring */
49 volatile union ice_rx_flex_desc *rx_ring;/* RX ring virtual address */
50 rte_iova_t rx_ring_dma; /* RX ring DMA address */
51 struct ice_rx_entry *sw_ring; /* address of RX soft ring */
52 uint16_t nb_rx_desc; /* number of RX descriptors */
53 uint16_t rx_free_thresh; /* max free RX desc to hold */
54 uint16_t rx_tail; /* current value of tail */
55 uint16_t nb_rx_hold; /* number of held free RX desc */
56 struct rte_mbuf *pkt_first_seg; /**< first segment of current packet */
57 struct rte_mbuf *pkt_last_seg; /**< last segment of current packet */
58 uint16_t rx_nb_avail; /**< number of staged packets ready */
59 uint16_t rx_next_avail; /**< index of next staged packets */
60 uint16_t rx_free_trigger; /**< triggers rx buffer allocation */
61 struct rte_mbuf fake_mbuf; /**< dummy mbuf */
62 struct rte_mbuf *rx_stage[ICE_RX_MAX_BURST * 2];
64 uint16_t rxrearm_nb; /**< number of remaining to be re-armed */
65 uint16_t rxrearm_start; /**< the idx we start the re-arming from */
66 uint64_t mbuf_initializer; /**< value to init mbufs */
68 uint8_t port_id; /* device port ID */
69 uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
70 uint16_t queue_id; /* RX queue index */
71 uint16_t reg_idx; /* RX queue register index */
72 uint8_t drop_en; /* if not 0, set register bit */
73 volatile uint8_t *qrx_tail; /* register address of tail */
74 struct ice_vsi *vsi; /* the VSI this queue belongs to */
75 uint16_t rx_buf_len; /* The packet buffer size */
76 uint16_t rx_hdr_len; /* The header buffer size */
77 uint16_t max_pkt_len; /* Maximum packet length */
78 bool q_set; /* indicate if rx queue has been configured */
79 bool rx_deferred_start; /* don't start this queue in dev start */
80 uint8_t proto_xtr; /* Protocol extraction from flexible descriptor */
81 ice_rx_release_mbufs_t rx_rel_mbufs;
85 struct rte_mbuf *mbuf;
91 uint16_t nb_tx_desc; /* number of TX descriptors */
92 rte_iova_t tx_ring_dma; /* TX ring DMA address */
93 volatile struct ice_tx_desc *tx_ring; /* TX ring virtual address */
94 struct ice_tx_entry *sw_ring; /* virtual address of SW ring */
95 uint16_t tx_tail; /* current value of tail register */
96 volatile uint8_t *qtx_tail; /* register address of tail */
97 uint16_t nb_tx_used; /* number of TX desc used since RS bit set */
98 /* index to last TX descriptor to have been cleaned */
99 uint16_t last_desc_cleaned;
100 /* Total number of TX descriptors ready to be allocated. */
102 /* Start freeing TX buffers if there are less free descriptors than
105 uint16_t tx_free_thresh;
106 /* Number of TX descriptors to use before RS bit is set. */
107 uint16_t tx_rs_thresh;
108 uint8_t pthresh; /**< Prefetch threshold register. */
109 uint8_t hthresh; /**< Host threshold register. */
110 uint8_t wthresh; /**< Write-back threshold reg. */
111 uint8_t port_id; /* Device port identifier. */
112 uint16_t queue_id; /* TX queue index. */
113 uint32_t q_teid; /* TX schedule node id. */
116 struct ice_vsi *vsi; /* the VSI this queue belongs to */
119 bool tx_deferred_start; /* don't start this queue in dev start */
120 bool q_set; /* indicate if tx queue has been configured */
121 ice_tx_release_mbufs_t tx_rel_mbufs;
124 /* Offload features */
125 union ice_tx_offload {
128 uint64_t l2_len:7; /* L2 (MAC) Header Length. */
129 uint64_t l3_len:9; /* L3 (IP) Header Length. */
130 uint64_t l4_len:8; /* L4 Header Length. */
131 uint64_t tso_segsz:16; /* TCP TSO segment size */
132 uint64_t outer_l2_len:8; /* outer L2 Header Length */
133 uint64_t outer_l3_len:16; /* outer L3 Header Length */
137 int ice_rx_queue_setup(struct rte_eth_dev *dev,
140 unsigned int socket_id,
141 const struct rte_eth_rxconf *rx_conf,
142 struct rte_mempool *mp);
143 int ice_tx_queue_setup(struct rte_eth_dev *dev,
146 unsigned int socket_id,
147 const struct rte_eth_txconf *tx_conf);
148 int ice_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
149 int ice_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
150 int ice_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
151 int ice_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
152 void ice_rx_queue_release(void *rxq);
153 void ice_tx_queue_release(void *txq);
154 void ice_clear_queues(struct rte_eth_dev *dev);
155 void ice_free_queues(struct rte_eth_dev *dev);
156 uint16_t ice_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
158 uint16_t ice_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
160 void ice_set_rx_function(struct rte_eth_dev *dev);
161 uint16_t ice_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
163 void ice_set_tx_function_flag(struct rte_eth_dev *dev,
164 struct ice_tx_queue *txq);
165 void ice_set_tx_function(struct rte_eth_dev *dev);
166 uint32_t ice_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id);
167 void ice_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
168 struct rte_eth_rxq_info *qinfo);
169 void ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
170 struct rte_eth_txq_info *qinfo);
171 int ice_rx_descriptor_status(void *rx_queue, uint16_t offset);
172 int ice_tx_descriptor_status(void *tx_queue, uint16_t offset);
173 void ice_set_default_ptype_table(struct rte_eth_dev *dev);
174 const uint32_t *ice_dev_supported_ptypes_get(struct rte_eth_dev *dev);
176 int ice_rx_vec_dev_check(struct rte_eth_dev *dev);
177 int ice_tx_vec_dev_check(struct rte_eth_dev *dev);
178 int ice_rxq_vec_setup(struct ice_rx_queue *rxq);
179 int ice_txq_vec_setup(struct ice_tx_queue *txq);
180 uint16_t ice_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
182 uint16_t ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
184 uint16_t ice_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
186 uint16_t ice_recv_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts,
188 uint16_t ice_recv_scattered_pkts_vec_avx2(void *rx_queue,
189 struct rte_mbuf **rx_pkts,
191 uint16_t ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
193 #endif /* _ICE_RXTX_H_ */