summaryrefslogtreecommitdiffstats
path: root/drivers/net/bnxt/bnxt_rxr.h
blob: f8d6dc80a15b276c8f4828eace7db658dd9ef60f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
/*-
 *   BSD LICENSE
 *
 *   Copyright(c) Broadcom Limited.
 *   All rights reserved.
 *
 *   Redistribution and use in source and binary forms, with or without
 *   modification, are permitted provided that the following conditions
 *   are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Broadcom Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _BNXT_RXR_H_
#define _BNXT_RXR_H_

#define B_RX_DB(db, prod)						\
		(*(uint32_t *)db = (DB_KEY_RX | prod))

#define BNXT_TPA_L4_SIZE(x)	\
	{ \
		typeof(x) hdr_info = (x); \
		(((hdr_info) & 0xf8000000) ? ((hdr_info) >> 27) : 32) \
	}

#define BNXT_TPA_INNER_L3_OFF(hdr_info)	\
	(((hdr_info) >> 18) & 0x1ff)

#define BNXT_TPA_INNER_L2_OFF(hdr_info)	\
	(((hdr_info) >> 9) & 0x1ff)

#define BNXT_TPA_OUTER_L3_OFF(hdr_info)	\
	((hdr_info) & 0x1ff)

enum pkt_hash_types {
	PKT_HASH_TYPE_NONE,	/* Undefined type */
	PKT_HASH_TYPE_L2,	/* Input: src_MAC, dest_MAC */
	PKT_HASH_TYPE_L3,	/* Input: src_IP, dst_IP */
	PKT_HASH_TYPE_L4,	/* Input: src_IP, dst_IP, src_port, dst_port */
};

struct bnxt_tpa_info {
	struct rte_mbuf		*mbuf;
	uint16_t			len;
	unsigned short		gso_type;
	uint32_t			flags2;
	uint32_t			metadata;
	enum pkt_hash_types	hash_type;
	uint32_t			rss_hash;
	uint32_t			hdr_info;
};

struct bnxt_sw_rx_bd {
	struct rte_mbuf		*mbuf; /* data associated with RX descriptor */
};

struct bnxt_rx_ring_info {
	uint16_t		rx_prod;
	uint16_t		ag_prod;
	void			*rx_doorbell;
	void			*ag_doorbell;

	struct rx_prod_pkt_bd	*rx_desc_ring;
	struct rx_prod_pkt_bd	*ag_desc_ring;
	struct bnxt_sw_rx_bd	*rx_buf_ring; /* sw ring */
	struct bnxt_sw_rx_bd	*ag_buf_ring; /* sw ring */

	phys_addr_t		rx_desc_mapping;
	phys_addr_t		ag_desc_mapping;

	struct bnxt_ring	*rx_ring_struct;
	struct bnxt_ring	*ag_ring_struct;

	/*
	 * To deal with out of order return from TPA, use free buffer indicator
	 */
	struct rte_bitmap	*ag_bitmap;

	struct bnxt_tpa_info *tpa_info;
};

uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
			       uint16_t nb_pkts);
void bnxt_free_rx_rings(struct bnxt *bp);
int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id);
int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq);

#endif