1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2017 Intel Corporation
8 /* In QLEN must be whole number of 32 descriptors. */
9 #define AVF_ALIGN_RING_DESC 32
10 #define AVF_MIN_RING_DESC 64
11 #define AVF_MAX_RING_DESC 4096
12 #define AVF_DMA_MEM_ALIGN 4096
13 /* Base address of the HW descriptor ring should be 128B aligned. */
14 #define AVF_RING_BASE_ALIGN 128
16 /* used for Rx Bulk Allocate */
17 #define AVF_RX_MAX_BURST 32
19 /* used for Vector PMD */
20 #define AVF_VPMD_RX_MAX_BURST 32
21 #define AVF_VPMD_TX_MAX_BURST 32
22 #define AVF_VPMD_DESCS_PER_LOOP 4
23 #define AVF_VPMD_TX_MAX_FREE_BUF 64
25 #define AVF_SIMPLE_FLAGS ((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS | \
26 ETH_TXQ_FLAGS_NOOFFLOADS)
28 #define DEFAULT_TX_RS_THRESH 32
29 #define DEFAULT_TX_FREE_THRESH 32
31 #define AVF_MIN_TSO_MSS 256
32 #define AVF_MAX_TSO_MSS 9668
33 #define AVF_TSO_MAX_SEG UINT8_MAX
34 #define AVF_TX_MAX_MTU_SEG 8
36 #define AVF_TX_CKSUM_OFFLOAD_MASK ( \
41 #define AVF_TX_OFFLOAD_MASK ( \
47 #define AVF_TX_OFFLOAD_NOTSUP_MASK \
48 (PKT_TX_OFFLOAD_MASK ^ AVF_TX_OFFLOAD_MASK)
50 /* HW desc structure, both 16-byte and 32-byte types are supported */
51 #ifdef RTE_LIBRTE_AVF_16BYTE_RX_DESC
52 #define avf_rx_desc avf_16byte_rx_desc
54 #define avf_rx_desc avf_32byte_rx_desc
58 void (*release_mbufs)(struct avf_rx_queue *rxq);
62 void (*release_mbufs)(struct avf_tx_queue *txq);
65 /* Structure associated with each Rx queue. */
67 struct rte_mempool *mp; /* mbuf pool to populate Rx ring */
68 const struct rte_memzone *mz; /* memzone for Rx ring */
69 volatile union avf_rx_desc *rx_ring; /* Rx ring virtual address */
70 uint64_t rx_ring_phys_addr; /* Rx ring DMA address */
71 struct rte_mbuf **sw_ring; /* address of SW ring */
72 uint16_t nb_rx_desc; /* ring length */
73 uint16_t rx_tail; /* current value of tail */
74 volatile uint8_t *qrx_tail; /* register address of tail */
75 uint16_t rx_free_thresh; /* max free RX desc to hold */
76 uint16_t nb_rx_hold; /* number of held free RX desc */
77 struct rte_mbuf *pkt_first_seg; /* first segment of current packet */
78 struct rte_mbuf *pkt_last_seg; /* last segment of current packet */
79 struct rte_mbuf fake_mbuf; /* dummy mbuf */
82 uint16_t rxrearm_nb; /* number of remaining to be re-armed */
83 uint16_t rxrearm_start; /* the idx we start the re-arming from */
84 uint64_t mbuf_initializer; /* value to init mbufs */
87 uint16_t rx_nb_avail; /* number of staged packets ready */
88 uint16_t rx_next_avail; /* index of next staged packets */
89 uint16_t rx_free_trigger; /* triggers rx buffer allocation */
90 struct rte_mbuf *rx_stage[AVF_RX_MAX_BURST * 2]; /* store mbuf */
92 uint16_t port_id; /* device port ID */
93 uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
94 uint16_t queue_id; /* Rx queue index */
95 uint16_t rx_buf_len; /* The packet buffer size */
96 uint16_t rx_hdr_len; /* The header buffer size */
97 uint16_t max_pkt_len; /* Maximum packet length */
99 bool q_set; /* if rx queue has been configured */
100 bool rx_deferred_start; /* don't start this queue in dev start */
101 const struct avf_rxq_ops *ops;
104 struct avf_tx_entry {
105 struct rte_mbuf *mbuf;
110 /* Structure associated with each TX queue. */
111 struct avf_tx_queue {
112 const struct rte_memzone *mz; /* memzone for Tx ring */
113 volatile struct avf_tx_desc *tx_ring; /* Tx ring virtual address */
114 uint64_t tx_ring_phys_addr; /* Tx ring DMA address */
115 struct avf_tx_entry *sw_ring; /* address array of SW ring */
116 uint16_t nb_tx_desc; /* ring length */
117 uint16_t tx_tail; /* current value of tail */
118 volatile uint8_t *qtx_tail; /* register address of tail */
119 /* number of used desc since RS bit set */
122 uint16_t last_desc_cleaned; /* last desc have been cleaned*/
123 uint16_t free_thresh;
129 uint16_t next_dd; /* next to set RS, for VPMD */
130 uint16_t next_rs; /* next to check DD, for VPMD */
132 bool q_set; /* if rx queue has been configured */
133 bool tx_deferred_start; /* don't start this queue in dev start */
134 const struct avf_txq_ops *ops;
137 /* Offload features */
138 union avf_tx_offload {
141 uint64_t l2_len:7; /* L2 (MAC) Header Length. */
142 uint64_t l3_len:9; /* L3 (IP) Header Length. */
143 uint64_t l4_len:8; /* L4 Header Length. */
144 uint64_t tso_segsz:16; /* TCP TSO segment size */
145 /* uint64_t unused : 24; */
149 int avf_dev_rx_queue_setup(struct rte_eth_dev *dev,
152 unsigned int socket_id,
153 const struct rte_eth_rxconf *rx_conf,
154 struct rte_mempool *mp);
156 int avf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
157 int avf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
158 void avf_dev_rx_queue_release(void *rxq);
160 int avf_dev_tx_queue_setup(struct rte_eth_dev *dev,
163 unsigned int socket_id,
164 const struct rte_eth_txconf *tx_conf);
165 int avf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
166 int avf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
167 void avf_dev_tx_queue_release(void *txq);
168 void avf_stop_queues(struct rte_eth_dev *dev);
169 uint16_t avf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
171 uint16_t avf_recv_scattered_pkts(void *rx_queue,
172 struct rte_mbuf **rx_pkts,
174 uint16_t avf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
176 uint16_t avf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
178 void avf_set_rx_function(struct rte_eth_dev *dev);
179 void avf_set_tx_function(struct rte_eth_dev *dev);
180 void avf_dev_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
181 struct rte_eth_rxq_info *qinfo);
182 void avf_dev_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
183 struct rte_eth_txq_info *qinfo);
184 uint32_t avf_dev_rxq_count(struct rte_eth_dev *dev, uint16_t queue_id);
185 int avf_dev_rx_desc_status(void *rx_queue, uint16_t offset);
186 int avf_dev_tx_desc_status(void *tx_queue, uint16_t offset);
188 uint16_t avf_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
190 uint16_t avf_recv_scattered_pkts_vec(void *rx_queue,
191 struct rte_mbuf **rx_pkts,
193 uint16_t avf_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
195 int avf_rxq_vec_setup(struct avf_rx_queue *rxq);
196 int avf_txq_vec_setup(struct avf_tx_queue *txq);
199 void avf_dump_rx_descriptor(struct avf_rx_queue *rxq,
203 #ifdef RTE_LIBRTE_AVF_16BYTE_RX_DESC
204 const union avf_16byte_rx_desc *rx_desc = desc;
206 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
207 rxq->queue_id, rx_id, rx_desc->read.pkt_addr,
208 rx_desc->read.hdr_addr);
210 const union avf_32byte_rx_desc *rx_desc = desc;
212 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64
213 " QW2: 0x%016"PRIx64" QW3: 0x%016"PRIx64"\n", rxq->queue_id,
214 rx_id, rx_desc->read.pkt_addr, rx_desc->read.hdr_addr,
215 rx_desc->read.rsvd1, rx_desc->read.rsvd2);
219 /* All the descriptors are 16 bytes, so just use one of them
220 * to print the qwords
223 void avf_dump_tx_descriptor(const struct avf_tx_queue *txq,
224 const void *desc, uint16_t tx_id)
227 const struct avf_tx_desc *tx_desc = desc;
228 enum avf_tx_desc_dtype_value type;
230 type = (enum avf_tx_desc_dtype_value)rte_le_to_cpu_64(
231 tx_desc->cmd_type_offset_bsz &
232 rte_cpu_to_le_64(AVF_TXD_QW1_DTYPE_MASK));
234 case AVF_TX_DESC_DTYPE_DATA:
235 name = "Tx_data_desc";
237 case AVF_TX_DESC_DTYPE_CONTEXT:
238 name = "Tx_context_desc";
241 name = "unknown_desc";
245 printf("Queue %d %s %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
246 txq->queue_id, name, tx_id, tx_desc->buffer_addr,
247 tx_desc->cmd_type_offset_bsz);
250 #ifdef DEBUG_DUMP_DESC
251 #define AVF_DUMP_RX_DESC(rxq, desc, rx_id) \
252 avf_dump_rx_descriptor(rxq, desc, rx_id)
253 #define AVF_DUMP_TX_DESC(txq, desc, tx_id) \
254 avf_dump_tx_descriptor(txq, desc, tx_id)
256 #define AVF_DUMP_RX_DESC(rxq, desc, rx_id) do { } while (0)
257 #define AVF_DUMP_TX_DESC(txq, desc, tx_id) do { } while (0)
260 #endif /* _AVF_RXTX_H_ */