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 IAVF_ALIGN_RING_DESC 32
10 #define IAVF_MIN_RING_DESC 64
11 #define IAVF_MAX_RING_DESC 4096
12 #define IAVF_DMA_MEM_ALIGN 4096
13 /* Base address of the HW descriptor ring should be 128B aligned. */
14 #define IAVF_RING_BASE_ALIGN 128
16 /* used for Rx Bulk Allocate */
17 #define IAVF_RX_MAX_BURST 32
19 /* used for Vector PMD */
20 #define IAVF_VPMD_RX_MAX_BURST 32
21 #define IAVF_VPMD_TX_MAX_BURST 32
22 #define IAVF_RXQ_REARM_THRESH 32
23 #define IAVF_VPMD_DESCS_PER_LOOP 4
24 #define IAVF_VPMD_TX_MAX_FREE_BUF 64
26 #define IAVF_NO_VECTOR_FLAGS ( \
27 DEV_TX_OFFLOAD_MULTI_SEGS | \
28 DEV_TX_OFFLOAD_VLAN_INSERT | \
29 DEV_TX_OFFLOAD_SCTP_CKSUM | \
30 DEV_TX_OFFLOAD_UDP_CKSUM | \
31 DEV_TX_OFFLOAD_TCP_TSO | \
32 DEV_TX_OFFLOAD_TCP_CKSUM)
34 #define DEFAULT_TX_RS_THRESH 32
35 #define DEFAULT_TX_FREE_THRESH 32
37 #define IAVF_MIN_TSO_MSS 256
38 #define IAVF_MAX_TSO_MSS 9668
39 #define IAVF_TSO_MAX_SEG UINT8_MAX
40 #define IAVF_TX_MAX_MTU_SEG 8
42 #define IAVF_TX_CKSUM_OFFLOAD_MASK ( \
47 #define IAVF_TX_OFFLOAD_MASK ( \
57 #define IAVF_TX_OFFLOAD_NOTSUP_MASK \
58 (PKT_TX_OFFLOAD_MASK ^ IAVF_TX_OFFLOAD_MASK)
60 /* HW desc structure, both 16-byte and 32-byte types are supported */
61 #ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
62 #define iavf_rx_desc iavf_16byte_rx_desc
64 #define iavf_rx_desc iavf_32byte_rx_desc
68 void (*release_mbufs)(struct iavf_rx_queue *rxq);
72 void (*release_mbufs)(struct iavf_tx_queue *txq);
75 /* Structure associated with each Rx queue. */
76 struct iavf_rx_queue {
77 struct rte_mempool *mp; /* mbuf pool to populate Rx ring */
78 const struct rte_memzone *mz; /* memzone for Rx ring */
79 volatile union iavf_rx_desc *rx_ring; /* Rx ring virtual address */
80 uint64_t rx_ring_phys_addr; /* Rx ring DMA address */
81 struct rte_mbuf **sw_ring; /* address of SW ring */
82 uint16_t nb_rx_desc; /* ring length */
83 uint16_t rx_tail; /* current value of tail */
84 volatile uint8_t *qrx_tail; /* register address of tail */
85 uint16_t rx_free_thresh; /* max free RX desc to hold */
86 uint16_t nb_rx_hold; /* number of held free RX desc */
87 struct rte_mbuf *pkt_first_seg; /* first segment of current packet */
88 struct rte_mbuf *pkt_last_seg; /* last segment of current packet */
89 struct rte_mbuf fake_mbuf; /* dummy mbuf */
92 uint16_t rxrearm_nb; /* number of remaining to be re-armed */
93 uint16_t rxrearm_start; /* the idx we start the re-arming from */
94 uint64_t mbuf_initializer; /* value to init mbufs */
97 uint16_t rx_nb_avail; /* number of staged packets ready */
98 uint16_t rx_next_avail; /* index of next staged packets */
99 uint16_t rx_free_trigger; /* triggers rx buffer allocation */
100 struct rte_mbuf *rx_stage[IAVF_RX_MAX_BURST * 2]; /* store mbuf */
102 uint16_t port_id; /* device port ID */
103 uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
104 uint16_t queue_id; /* Rx queue index */
105 uint16_t rx_buf_len; /* The packet buffer size */
106 uint16_t rx_hdr_len; /* The header buffer size */
107 uint16_t max_pkt_len; /* Maximum packet length */
108 struct iavf_vsi *vsi; /**< the VSI this queue belongs to */
110 bool q_set; /* if rx queue has been configured */
111 bool rx_deferred_start; /* don't start this queue in dev start */
112 const struct iavf_rxq_ops *ops;
115 struct iavf_tx_entry {
116 struct rte_mbuf *mbuf;
121 /* Structure associated with each TX queue. */
122 struct iavf_tx_queue {
123 const struct rte_memzone *mz; /* memzone for Tx ring */
124 volatile struct iavf_tx_desc *tx_ring; /* Tx ring virtual address */
125 uint64_t tx_ring_phys_addr; /* Tx ring DMA address */
126 struct iavf_tx_entry *sw_ring; /* address array of SW ring */
127 uint16_t nb_tx_desc; /* ring length */
128 uint16_t tx_tail; /* current value of tail */
129 volatile uint8_t *qtx_tail; /* register address of tail */
130 /* number of used desc since RS bit set */
133 uint16_t last_desc_cleaned; /* last desc have been cleaned*/
134 uint16_t free_thresh;
140 uint16_t next_dd; /* next to set RS, for VPMD */
141 uint16_t next_rs; /* next to check DD, for VPMD */
143 bool q_set; /* if rx queue has been configured */
144 bool tx_deferred_start; /* don't start this queue in dev start */
145 const struct iavf_txq_ops *ops;
148 /* Offload features */
149 union iavf_tx_offload {
152 uint64_t l2_len:7; /* L2 (MAC) Header Length. */
153 uint64_t l3_len:9; /* L3 (IP) Header Length. */
154 uint64_t l4_len:8; /* L4 Header Length. */
155 uint64_t tso_segsz:16; /* TCP TSO segment size */
156 /* uint64_t unused : 24; */
160 int iavf_dev_rx_queue_setup(struct rte_eth_dev *dev,
163 unsigned int socket_id,
164 const struct rte_eth_rxconf *rx_conf,
165 struct rte_mempool *mp);
167 int iavf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
168 int iavf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
169 void iavf_dev_rx_queue_release(void *rxq);
171 int iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
174 unsigned int socket_id,
175 const struct rte_eth_txconf *tx_conf);
176 int iavf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
177 int iavf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
178 void iavf_dev_tx_queue_release(void *txq);
179 void iavf_stop_queues(struct rte_eth_dev *dev);
180 uint16_t iavf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
182 uint16_t iavf_recv_scattered_pkts(void *rx_queue,
183 struct rte_mbuf **rx_pkts,
185 uint16_t iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
187 uint16_t iavf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
189 void iavf_set_rx_function(struct rte_eth_dev *dev);
190 void iavf_set_tx_function(struct rte_eth_dev *dev);
191 void iavf_dev_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
192 struct rte_eth_rxq_info *qinfo);
193 void iavf_dev_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
194 struct rte_eth_txq_info *qinfo);
195 uint32_t iavf_dev_rxq_count(struct rte_eth_dev *dev, uint16_t queue_id);
196 int iavf_dev_rx_desc_status(void *rx_queue, uint16_t offset);
197 int iavf_dev_tx_desc_status(void *tx_queue, uint16_t offset);
199 uint16_t iavf_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
201 uint16_t iavf_recv_scattered_pkts_vec(void *rx_queue,
202 struct rte_mbuf **rx_pkts,
204 uint16_t iavf_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
206 uint16_t iavf_recv_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts,
208 uint16_t iavf_recv_scattered_pkts_vec_avx2(void *rx_queue,
209 struct rte_mbuf **rx_pkts,
211 uint16_t iavf_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
213 uint16_t iavf_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
215 int iavf_rx_vec_dev_check(struct rte_eth_dev *dev);
216 int iavf_tx_vec_dev_check(struct rte_eth_dev *dev);
217 int iavf_rxq_vec_setup(struct iavf_rx_queue *rxq);
218 int iavf_txq_vec_setup(struct iavf_tx_queue *txq);
220 const uint32_t *iavf_get_default_ptype_table(void);
223 void iavf_dump_rx_descriptor(struct iavf_rx_queue *rxq,
224 const volatile void *desc,
227 #ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
228 const volatile union iavf_16byte_rx_desc *rx_desc = desc;
230 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
231 rxq->queue_id, rx_id, rx_desc->read.pkt_addr,
232 rx_desc->read.hdr_addr);
234 const volatile union iavf_32byte_rx_desc *rx_desc = desc;
236 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64
237 " QW2: 0x%016"PRIx64" QW3: 0x%016"PRIx64"\n", rxq->queue_id,
238 rx_id, rx_desc->read.pkt_addr, rx_desc->read.hdr_addr,
239 rx_desc->read.rsvd1, rx_desc->read.rsvd2);
243 /* All the descriptors are 16 bytes, so just use one of them
244 * to print the qwords
247 void iavf_dump_tx_descriptor(const struct iavf_tx_queue *txq,
248 const volatile void *desc, uint16_t tx_id)
251 const volatile struct iavf_tx_desc *tx_desc = desc;
252 enum iavf_tx_desc_dtype_value type;
254 type = (enum iavf_tx_desc_dtype_value)rte_le_to_cpu_64(
255 tx_desc->cmd_type_offset_bsz &
256 rte_cpu_to_le_64(IAVF_TXD_QW1_DTYPE_MASK));
258 case IAVF_TX_DESC_DTYPE_DATA:
259 name = "Tx_data_desc";
261 case IAVF_TX_DESC_DTYPE_CONTEXT:
262 name = "Tx_context_desc";
265 name = "unknown_desc";
269 printf("Queue %d %s %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
270 txq->queue_id, name, tx_id, tx_desc->buffer_addr,
271 tx_desc->cmd_type_offset_bsz);
274 #ifdef RTE_LIBRTE_IAVF_DEBUG_DUMP_DESC
275 #define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) \
276 iavf_dump_rx_descriptor(rxq, desc, rx_id)
277 #define IAVF_DUMP_TX_DESC(txq, desc, tx_id) \
278 iavf_dump_tx_descriptor(txq, desc, tx_id)
280 #define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) do { } while (0)
281 #define IAVF_DUMP_TX_DESC(txq, desc, tx_id) do { } while (0)
284 #endif /* _IAVF_RXTX_H_ */