1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016 Cavium, Inc
3 */
4
5 #ifndef __THUNDERX_NICVF_ETHDEV_H__
6 #define __THUNDERX_NICVF_ETHDEV_H__
7
8 #include <ethdev_driver.h>
9
10 #define THUNDERX_NICVF_PMD_VERSION "2.0"
11 #define THUNDERX_REG_BYTES 8
12
13 #define NICVF_INTR_POLL_INTERVAL_MS 50
14 #define NICVF_HALF_DUPLEX 0x00
15 #define NICVF_FULL_DUPLEX 0x01
16 #define NICVF_UNKNOWN_DUPLEX 0xff
17
18 #define NICVF_RSS_OFFLOAD_PASS1 ( \
19 RTE_ETH_RSS_PORT | \
20 RTE_ETH_RSS_IPV4 | \
21 RTE_ETH_RSS_NONFRAG_IPV4_TCP | \
22 RTE_ETH_RSS_NONFRAG_IPV4_UDP | \
23 RTE_ETH_RSS_IPV6 | \
24 RTE_ETH_RSS_NONFRAG_IPV6_TCP | \
25 RTE_ETH_RSS_NONFRAG_IPV6_UDP)
26
27 #define NICVF_RSS_OFFLOAD_TUNNEL ( \
28 RTE_ETH_RSS_VXLAN | \
29 RTE_ETH_RSS_GENEVE | \
30 RTE_ETH_RSS_NVGRE)
31
32 #define NICVF_TX_OFFLOAD_CAPA ( \
33 RTE_ETH_TX_OFFLOAD_IPV4_CKSUM | \
34 RTE_ETH_TX_OFFLOAD_UDP_CKSUM | \
35 RTE_ETH_TX_OFFLOAD_TCP_CKSUM | \
36 RTE_ETH_TX_OFFLOAD_OUTER_IPV4_CKSUM | \
37 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE | \
38 RTE_ETH_TX_OFFLOAD_MULTI_SEGS)
39
40 #define NICVF_RX_OFFLOAD_CAPA ( \
41 RTE_ETH_RX_OFFLOAD_CHECKSUM | \
42 RTE_ETH_RX_OFFLOAD_VLAN_STRIP | \
43 RTE_ETH_RX_OFFLOAD_SCATTER | \
44 RTE_ETH_RX_OFFLOAD_RSS_HASH)
45
46 #define NICVF_DEFAULT_RX_FREE_THRESH 224
47 #define NICVF_DEFAULT_TX_FREE_THRESH 224
48 #define NICVF_TX_FREE_MPOOL_THRESH 16
49 #define NICVF_MAX_RX_FREE_THRESH 1024
50 #define NICVF_MAX_TX_FREE_THRESH 1024
51
52 #define VLAN_TAG_SIZE 4 /* 802.3ac tag */
53
54 #define SKIP_DATA_BYTES "skip_data_bytes"
55 static inline struct nicvf *
nicvf_pmd_priv(struct rte_eth_dev * eth_dev)56 nicvf_pmd_priv(struct rte_eth_dev *eth_dev)
57 {
58 return eth_dev->data->dev_private;
59 }
60
61 static inline uint64_t
nicvf_mempool_phy_offset(struct rte_mempool * mp)62 nicvf_mempool_phy_offset(struct rte_mempool *mp)
63 {
64 struct rte_mempool_memhdr *hdr;
65
66 hdr = STAILQ_FIRST(&mp->mem_list);
67 assert(hdr != NULL);
68 return (uint64_t)((uintptr_t)hdr->addr - hdr->iova);
69 }
70
71 static inline uint16_t
nicvf_mbuff_meta_length(struct rte_mbuf * mbuf)72 nicvf_mbuff_meta_length(struct rte_mbuf *mbuf)
73 {
74 return (uint16_t)((uintptr_t)mbuf->buf_addr - (uintptr_t)mbuf);
75 }
76
77 static inline uint16_t
nicvf_netdev_qidx(struct nicvf * nic,uint8_t local_qidx)78 nicvf_netdev_qidx(struct nicvf *nic, uint8_t local_qidx)
79 {
80 uint16_t global_qidx = local_qidx;
81
82 if (nic->sqs_mode)
83 global_qidx += ((nic->sqs_id + 1) * MAX_CMP_QUEUES_PER_QS);
84
85 return global_qidx;
86 }
87
88 /*
89 * Simple phy2virt functions assuming mbufs are in a single huge page
90 * V = P + offset
91 * P = V - offset
92 */
93 static inline uintptr_t
nicvf_mbuff_phy2virt(rte_iova_t phy,uint64_t mbuf_phys_off)94 nicvf_mbuff_phy2virt(rte_iova_t phy, uint64_t mbuf_phys_off)
95 {
96 return (uintptr_t)(phy + mbuf_phys_off);
97 }
98
99 static inline uintptr_t
nicvf_mbuff_virt2phy(uintptr_t virt,uint64_t mbuf_phys_off)100 nicvf_mbuff_virt2phy(uintptr_t virt, uint64_t mbuf_phys_off)
101 {
102 return (rte_iova_t)(virt - mbuf_phys_off);
103 }
104
105 static inline void
nicvf_tx_range(struct rte_eth_dev * dev,struct nicvf * nic,uint16_t * tx_start,uint16_t * tx_end)106 nicvf_tx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *tx_start,
107 uint16_t *tx_end)
108 {
109 uint16_t tmp;
110
111 *tx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
112 MAX_SND_QUEUES_PER_QS);
113 tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
114 MAX_SND_QUEUES_PER_QS) - 1;
115 *tx_end = dev->data->nb_tx_queues ?
116 RTE_MIN(tmp, dev->data->nb_tx_queues - 1) : 0;
117 }
118
119 static inline void
nicvf_rx_range(struct rte_eth_dev * dev,struct nicvf * nic,uint16_t * rx_start,uint16_t * rx_end)120 nicvf_rx_range(struct rte_eth_dev *dev, struct nicvf *nic, uint16_t *rx_start,
121 uint16_t *rx_end)
122 {
123 uint16_t tmp;
124
125 *rx_start = RTE_ALIGN_FLOOR(nicvf_netdev_qidx(nic, 0),
126 MAX_RCV_QUEUES_PER_QS);
127 tmp = RTE_ALIGN_CEIL(nicvf_netdev_qidx(nic, 0) + 1,
128 MAX_RCV_QUEUES_PER_QS) - 1;
129 *rx_end = dev->data->nb_rx_queues ?
130 RTE_MIN(tmp, dev->data->nb_rx_queues - 1) : 0;
131 }
132
133 #endif /* __THUNDERX_NICVF_ETHDEV_H__ */
134