New upstream version 17.08
[deb_dpdk.git] / drivers / net / bnxt / bnxt_rxr.h
1 /*-
2  *   BSD LICENSE
3  *
4  *   Copyright(c) Broadcom Limited.
5  *   All rights reserved.
6  *
7  *   Redistribution and use in source and binary forms, with or without
8  *   modification, are permitted provided that the following conditions
9  *   are met:
10  *
11  *     * Redistributions of source code must retain the above copyright
12  *       notice, this list of conditions and the following disclaimer.
13  *     * Redistributions in binary form must reproduce the above copyright
14  *       notice, this list of conditions and the following disclaimer in
15  *       the documentation and/or other materials provided with the
16  *       distribution.
17  *     * Neither the name of Broadcom Corporation nor the names of its
18  *       contributors may be used to endorse or promote products derived
19  *       from this software without specific prior written permission.
20  *
21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33
34 #ifndef _BNXT_RXR_H_
35 #define _BNXT_RXR_H_
36
37 #define B_RX_DB(db, prod)                                               \
38                 (*(uint32_t *)db = (DB_KEY_RX | prod))
39
40 #define BNXT_TPA_L4_SIZE(x)     \
41         { \
42                 typeof(x) hdr_info = (x); \
43                 (((hdr_info) & 0xf8000000) ? ((hdr_info) >> 27) : 32) \
44         }
45
46 #define BNXT_TPA_INNER_L3_OFF(hdr_info) \
47         (((hdr_info) >> 18) & 0x1ff)
48
49 #define BNXT_TPA_INNER_L2_OFF(hdr_info) \
50         (((hdr_info) >> 9) & 0x1ff)
51
52 #define BNXT_TPA_OUTER_L3_OFF(hdr_info) \
53         ((hdr_info) & 0x1ff)
54
55 enum pkt_hash_types {
56         PKT_HASH_TYPE_NONE,     /* Undefined type */
57         PKT_HASH_TYPE_L2,       /* Input: src_MAC, dest_MAC */
58         PKT_HASH_TYPE_L3,       /* Input: src_IP, dst_IP */
59         PKT_HASH_TYPE_L4,       /* Input: src_IP, dst_IP, src_port, dst_port */
60 };
61
62 struct bnxt_tpa_info {
63         struct rte_mbuf         *mbuf;
64         uint16_t                        len;
65         unsigned short          gso_type;
66         uint32_t                        flags2;
67         uint32_t                        metadata;
68         enum pkt_hash_types     hash_type;
69         uint32_t                        rss_hash;
70         uint32_t                        hdr_info;
71 };
72
73 struct bnxt_sw_rx_bd {
74         struct rte_mbuf         *mbuf; /* data associated with RX descriptor */
75 };
76
77 struct bnxt_rx_ring_info {
78         uint16_t                rx_prod;
79         uint16_t                ag_prod;
80         void                    *rx_doorbell;
81         void                    *ag_doorbell;
82
83         struct rx_prod_pkt_bd   *rx_desc_ring;
84         struct rx_prod_pkt_bd   *ag_desc_ring;
85         struct bnxt_sw_rx_bd    *rx_buf_ring; /* sw ring */
86         struct bnxt_sw_rx_bd    *ag_buf_ring; /* sw ring */
87
88         phys_addr_t             rx_desc_mapping;
89         phys_addr_t             ag_desc_mapping;
90
91         struct bnxt_ring        *rx_ring_struct;
92         struct bnxt_ring        *ag_ring_struct;
93
94         /*
95          * To deal with out of order return from TPA, use free buffer indicator
96          */
97         struct rte_bitmap       *ag_bitmap;
98
99         struct bnxt_tpa_info *tpa_info;
100 };
101
102 uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
103                                uint16_t nb_pkts);
104 void bnxt_free_rx_rings(struct bnxt *bp);
105 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
106 int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);
107
108 #endif