New upstream version 18.08
[deb_dpdk.git] / drivers / net / thunderx / nicvf_rxtx.h
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2016 Cavium, Inc
3  */
4
5 #ifndef __THUNDERX_NICVF_RXTX_H__
6 #define __THUNDERX_NICVF_RXTX_H__
7
8 #include <rte_byteorder.h>
9 #include <rte_ethdev_driver.h>
10
11 #define NICVF_RX_OFFLOAD_NONE           0x1
12 #define NICVF_RX_OFFLOAD_CKSUM          0x2
13 #define NICVF_RX_OFFLOAD_VLAN_STRIP     0x4
14
15 #define NICVF_TX_OFFLOAD_MASK (PKT_TX_IP_CKSUM | PKT_TX_L4_MASK)
16
17 #ifndef __hot
18 #define __hot   __attribute__((hot))
19 #endif
20
21 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
22 static inline uint16_t __attribute__((const))
23 nicvf_frag_num(uint16_t i)
24 {
25         return (i & ~3) + 3 - (i & 3);
26 }
27
28 static inline void __hot
29 fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
30 {
31         /* Local variable sqe to avoid read from sq desc memory*/
32         union sq_entry_t sqe;
33
34         /* Fill the SQ gather entry */
35         sqe.buff[0] = 0; sqe.buff[1] = 0;
36         sqe.gather.subdesc_type = SQ_DESC_TYPE_GATHER;
37         sqe.gather.ld_type = NIC_SEND_LD_TYPE_E_LDT;
38         sqe.gather.size = pkt->data_len;
39         sqe.gather.addr = rte_mbuf_data_iova(pkt);
40
41         entry->buff[0] = sqe.buff[0];
42         entry->buff[1] = sqe.buff[1];
43 }
44
45 #else
46
47 static inline uint16_t __attribute__((const))
48 nicvf_frag_num(uint16_t i)
49 {
50         return i;
51 }
52
53 static inline void __hot
54 fill_sq_desc_gather(union sq_entry_t *entry, struct rte_mbuf *pkt)
55 {
56         entry->buff[0] = (uint64_t)SQ_DESC_TYPE_GATHER << 60 |
57                          (uint64_t)NIC_SEND_LD_TYPE_E_LDT << 58 |
58                          pkt->data_len;
59         entry->buff[1] = rte_mbuf_data_iova(pkt);
60 }
61 #endif
62
63 static inline void
64 nicvf_mbuff_init_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
65                                 uint16_t apad)
66 {
67         union mbuf_initializer init = {.value = mbuf_init};
68 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
69         init.fields.data_off += apad;
70 #else
71         init.value += apad;
72 #endif
73         *(uint64_t *)(&pkt->rearm_data) = init.value;
74 }
75
76 static inline void
77 nicvf_mbuff_init_mseg_update(struct rte_mbuf *pkt, const uint64_t mbuf_init,
78                                                 uint16_t apad, uint16_t nb_segs)
79 {
80         union mbuf_initializer init = {.value = mbuf_init};
81 #if RTE_BYTE_ORDER == RTE_BIG_ENDIAN
82         init.fields.data_off += apad;
83 #else
84         init.value += apad;
85 #endif
86         init.fields.nb_segs = nb_segs;
87         *(uint64_t *)(&pkt->rearm_data) = init.value;
88 }
89
90 uint32_t nicvf_dev_rx_queue_count(struct rte_eth_dev *dev, uint16_t queue_idx);
91 uint32_t nicvf_dev_rbdr_refill(struct rte_eth_dev *dev, uint16_t queue_idx);
92
93 uint16_t nicvf_recv_pkts_no_offload(void *rxq, struct rte_mbuf **rx_pkts,
94                 uint16_t pkts);
95 uint16_t nicvf_recv_pkts_cksum(void *rxq, struct rte_mbuf **rx_pkts,
96                 uint16_t pkts);
97 uint16_t nicvf_recv_pkts_vlan_strip(void *rx_queue, struct rte_mbuf **rx_pkts,
98                 uint16_t nb_pkts);
99 uint16_t nicvf_recv_pkts_cksum_vlan_strip(void *rx_queue,
100                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
101
102 uint16_t nicvf_recv_pkts_multiseg_no_offload(void *rx_queue,
103                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
104 uint16_t nicvf_recv_pkts_multiseg_cksum(void *rx_queue,
105                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
106 uint16_t nicvf_recv_pkts_multiseg_vlan_strip(void *rx_queue,
107                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
108 uint16_t nicvf_recv_pkts_multiseg_cksum_vlan_strip(void *rx_queue,
109                 struct rte_mbuf **rx_pkts, uint16_t nb_pkts);
110
111 uint16_t nicvf_xmit_pkts(void *txq, struct rte_mbuf **tx_pkts, uint16_t pkts);
112 uint16_t nicvf_xmit_pkts_multiseg(void *txq, struct rte_mbuf **tx_pkts,
113                                   uint16_t pkts);
114
115 void nicvf_single_pool_free_xmited_buffers(struct nicvf_txq *sq);
116 void nicvf_multi_pool_free_xmited_buffers(struct nicvf_txq *sq);
117
118 #endif /* __THUNDERX_NICVF_RXTX_H__  */