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_VPMD_DESCS_PER_LOOP 4
23 #define IAVF_VPMD_TX_MAX_FREE_BUF 64
25 #define IAVF_NO_VECTOR_FLAGS ( \
26 DEV_TX_OFFLOAD_MULTI_SEGS | \
27 DEV_TX_OFFLOAD_VLAN_INSERT | \
28 DEV_TX_OFFLOAD_SCTP_CKSUM | \
29 DEV_TX_OFFLOAD_UDP_CKSUM | \
30 DEV_TX_OFFLOAD_TCP_CKSUM)
32 #define DEFAULT_TX_RS_THRESH 32
33 #define DEFAULT_TX_FREE_THRESH 32
35 #define IAVF_MIN_TSO_MSS 256
36 #define IAVF_MAX_TSO_MSS 9668
37 #define IAVF_TSO_MAX_SEG UINT8_MAX
38 #define IAVF_TX_MAX_MTU_SEG 8
40 #define IAVF_TX_CKSUM_OFFLOAD_MASK ( \
45 #define IAVF_TX_OFFLOAD_MASK ( \
55 #define IAVF_TX_OFFLOAD_NOTSUP_MASK \
56 (PKT_TX_OFFLOAD_MASK ^ IAVF_TX_OFFLOAD_MASK)
58 /* HW desc structure, both 16-byte and 32-byte types are supported */
59 #ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
60 #define iavf_rx_desc iavf_16byte_rx_desc
62 #define iavf_rx_desc iavf_32byte_rx_desc
66 void (*release_mbufs)(struct iavf_rx_queue *rxq);
70 void (*release_mbufs)(struct iavf_tx_queue *txq);
73 /* Structure associated with each Rx queue. */
74 struct iavf_rx_queue {
75 struct rte_mempool *mp; /* mbuf pool to populate Rx ring */
76 const struct rte_memzone *mz; /* memzone for Rx ring */
77 volatile union iavf_rx_desc *rx_ring; /* Rx ring virtual address */
78 uint64_t rx_ring_phys_addr; /* Rx ring DMA address */
79 struct rte_mbuf **sw_ring; /* address of SW ring */
80 uint16_t nb_rx_desc; /* ring length */
81 uint16_t rx_tail; /* current value of tail */
82 volatile uint8_t *qrx_tail; /* register address of tail */
83 uint16_t rx_free_thresh; /* max free RX desc to hold */
84 uint16_t nb_rx_hold; /* number of held free RX desc */
85 struct rte_mbuf *pkt_first_seg; /* first segment of current packet */
86 struct rte_mbuf *pkt_last_seg; /* last segment of current packet */
87 struct rte_mbuf fake_mbuf; /* dummy mbuf */
90 uint16_t rxrearm_nb; /* number of remaining to be re-armed */
91 uint16_t rxrearm_start; /* the idx we start the re-arming from */
92 uint64_t mbuf_initializer; /* value to init mbufs */
95 uint16_t rx_nb_avail; /* number of staged packets ready */
96 uint16_t rx_next_avail; /* index of next staged packets */
97 uint16_t rx_free_trigger; /* triggers rx buffer allocation */
98 struct rte_mbuf *rx_stage[IAVF_RX_MAX_BURST * 2]; /* store mbuf */
100 uint16_t port_id; /* device port ID */
101 uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
102 uint16_t queue_id; /* Rx queue index */
103 uint16_t rx_buf_len; /* The packet buffer size */
104 uint16_t rx_hdr_len; /* The header buffer size */
105 uint16_t max_pkt_len; /* Maximum packet length */
107 bool q_set; /* if rx queue has been configured */
108 bool rx_deferred_start; /* don't start this queue in dev start */
109 const struct iavf_rxq_ops *ops;
112 struct iavf_tx_entry {
113 struct rte_mbuf *mbuf;
118 /* Structure associated with each TX queue. */
119 struct iavf_tx_queue {
120 const struct rte_memzone *mz; /* memzone for Tx ring */
121 volatile struct iavf_tx_desc *tx_ring; /* Tx ring virtual address */
122 uint64_t tx_ring_phys_addr; /* Tx ring DMA address */
123 struct iavf_tx_entry *sw_ring; /* address array of SW ring */
124 uint16_t nb_tx_desc; /* ring length */
125 uint16_t tx_tail; /* current value of tail */
126 volatile uint8_t *qtx_tail; /* register address of tail */
127 /* number of used desc since RS bit set */
130 uint16_t last_desc_cleaned; /* last desc have been cleaned*/
131 uint16_t free_thresh;
137 uint16_t next_dd; /* next to set RS, for VPMD */
138 uint16_t next_rs; /* next to check DD, for VPMD */
140 bool q_set; /* if rx queue has been configured */
141 bool tx_deferred_start; /* don't start this queue in dev start */
142 const struct iavf_txq_ops *ops;
145 /* Offload features */
146 union iavf_tx_offload {
149 uint64_t l2_len:7; /* L2 (MAC) Header Length. */
150 uint64_t l3_len:9; /* L3 (IP) Header Length. */
151 uint64_t l4_len:8; /* L4 Header Length. */
152 uint64_t tso_segsz:16; /* TCP TSO segment size */
153 /* uint64_t unused : 24; */
157 int iavf_dev_rx_queue_setup(struct rte_eth_dev *dev,
160 unsigned int socket_id,
161 const struct rte_eth_rxconf *rx_conf,
162 struct rte_mempool *mp);
164 int iavf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
165 int iavf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
166 void iavf_dev_rx_queue_release(void *rxq);
168 int iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
171 unsigned int socket_id,
172 const struct rte_eth_txconf *tx_conf);
173 int iavf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
174 int iavf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
175 void iavf_dev_tx_queue_release(void *txq);
176 void iavf_stop_queues(struct rte_eth_dev *dev);
177 uint16_t iavf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
179 uint16_t iavf_recv_scattered_pkts(void *rx_queue,
180 struct rte_mbuf **rx_pkts,
182 uint16_t iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
184 uint16_t iavf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
186 void iavf_set_rx_function(struct rte_eth_dev *dev);
187 void iavf_set_tx_function(struct rte_eth_dev *dev);
188 void iavf_dev_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
189 struct rte_eth_rxq_info *qinfo);
190 void iavf_dev_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
191 struct rte_eth_txq_info *qinfo);
192 uint32_t iavf_dev_rxq_count(struct rte_eth_dev *dev, uint16_t queue_id);
193 int iavf_dev_rx_desc_status(void *rx_queue, uint16_t offset);
194 int iavf_dev_tx_desc_status(void *tx_queue, uint16_t offset);
196 uint16_t iavf_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
198 uint16_t iavf_recv_scattered_pkts_vec(void *rx_queue,
199 struct rte_mbuf **rx_pkts,
201 uint16_t iavf_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
203 int iavf_rxq_vec_setup(struct iavf_rx_queue *rxq);
204 int iavf_txq_vec_setup(struct iavf_tx_queue *txq);
207 void iavf_dump_rx_descriptor(struct iavf_rx_queue *rxq,
208 const volatile void *desc,
211 #ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
212 const volatile union iavf_16byte_rx_desc *rx_desc = desc;
214 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
215 rxq->queue_id, rx_id, rx_desc->read.pkt_addr,
216 rx_desc->read.hdr_addr);
218 const volatile union iavf_32byte_rx_desc *rx_desc = desc;
220 printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64
221 " QW2: 0x%016"PRIx64" QW3: 0x%016"PRIx64"\n", rxq->queue_id,
222 rx_id, rx_desc->read.pkt_addr, rx_desc->read.hdr_addr,
223 rx_desc->read.rsvd1, rx_desc->read.rsvd2);
227 /* All the descriptors are 16 bytes, so just use one of them
228 * to print the qwords
231 void iavf_dump_tx_descriptor(const struct iavf_tx_queue *txq,
232 const volatile void *desc, uint16_t tx_id)
235 const volatile struct iavf_tx_desc *tx_desc = desc;
236 enum iavf_tx_desc_dtype_value type;
238 type = (enum iavf_tx_desc_dtype_value)rte_le_to_cpu_64(
239 tx_desc->cmd_type_offset_bsz &
240 rte_cpu_to_le_64(IAVF_TXD_QW1_DTYPE_MASK));
242 case IAVF_TX_DESC_DTYPE_DATA:
243 name = "Tx_data_desc";
245 case IAVF_TX_DESC_DTYPE_CONTEXT:
246 name = "Tx_context_desc";
249 name = "unknown_desc";
253 printf("Queue %d %s %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
254 txq->queue_id, name, tx_id, tx_desc->buffer_addr,
255 tx_desc->cmd_type_offset_bsz);
258 #ifdef RTE_LIBRTE_IAVF_DEBUG_DUMP_DESC
259 #define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) \
260 iavf_dump_rx_descriptor(rxq, desc, rx_id)
261 #define IAVF_DUMP_TX_DESC(txq, desc, tx_id) \
262 iavf_dump_tx_descriptor(txq, desc, tx_id)
264 #define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) do { } while (0)
265 #define IAVF_DUMP_TX_DESC(txq, desc, tx_id) do { } while (0)
268 #endif /* _IAVF_RXTX_H_ */