summaryrefslogtreecommitdiff
path: root/drivers/net/ena/ena_ethdev.h
blob: 221760c62c5cf70b3ec395c8804a5cd44d599432 (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
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
/*-
* BSD LICENSE
*
* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
* 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 copyright holder 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 _ENA_ETHDEV_H_
#define _ENA_ETHDEV_H_

#include <rte_cycles.h>
#include <rte_pci.h>
#include <rte_bus_pci.h>
#include <rte_timer.h>

#include "ena_com.h"

#define ENA_REGS_BAR	0
#define ENA_MEM_BAR	2

#define ENA_MAX_NUM_QUEUES	128
#define ENA_MIN_FRAME_LEN	64
#define ENA_NAME_MAX_LEN	20
#define ENA_PKT_MAX_BUFS	17

#define ENA_MIN_MTU		128

#define ENA_MMIO_DISABLE_REG_READ	BIT(0)

#define ENA_WD_TIMEOUT_SEC	3
#define ENA_DEVICE_KALIVE_TIMEOUT (ENA_WD_TIMEOUT_SEC * rte_get_timer_hz())

struct ena_adapter;

enum ena_ring_type {
	ENA_RING_TYPE_RX = 1,
	ENA_RING_TYPE_TX = 2,
};

struct ena_tx_buffer {
	struct rte_mbuf *mbuf;
	unsigned int tx_descs;
	unsigned int num_of_bufs;
	struct ena_com_buf bufs[ENA_PKT_MAX_BUFS];
};

struct ena_calc_queue_size_ctx {
	struct ena_com_dev_get_features_ctx *get_feat_ctx;
	struct ena_com_dev *ena_dev;
	u16 rx_queue_size;
	u16 tx_queue_size;
	u16 max_tx_sgl_size;
	u16 max_rx_sgl_size;
};

struct ena_stats_tx {
	u64 cnt;
	u64 bytes;
	u64 prepare_ctx_err;
	u64 linearize;
	u64 linearize_failed;
	u64 tx_poll;
	u64 doorbells;
	u64 bad_req_id;
	u64 available_desc;
};

struct ena_stats_rx {
	u64 cnt;
	u64 bytes;
	u64 refill_partial;
	u64 bad_csum;
	u64 mbuf_alloc_fail;
	u64 bad_desc_num;
	u64 bad_req_id;
};

struct ena_ring {
	u16 next_to_use;
	u16 next_to_clean;

	enum ena_ring_type type;
	enum ena_admin_placement_policy_type tx_mem_queue_type;
	/* Holds the empty requests for TX/RX OOO completions */
	union {
		uint16_t *empty_tx_reqs;
		uint16_t *empty_rx_reqs;
	};

	union {
		struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */
		struct rte_mbuf **rx_buffer_info; /* contex of rx packet */
	};
	struct rte_mbuf **rx_refill_buffer;
	unsigned int ring_size; /* number of tx/rx_buffer_info's entries */

	struct ena_com_io_cq *ena_com_io_cq;
	struct ena_com_io_sq *ena_com_io_sq;

	struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS]
						__rte_cache_aligned;

	struct rte_mempool *mb_pool;
	unsigned int port_id;
	unsigned int id;
	/* Max length PMD can push to device for LLQ */
	uint8_t tx_max_header_size;
	int configured;

	uint8_t *push_buf_intermediate_buf;

	struct ena_adapter *adapter;
	uint64_t offloads;
	u16 sgl_size;

	union {
		struct ena_stats_rx rx_stats;
		struct ena_stats_tx tx_stats;
	};
} __rte_cache_aligned;

enum ena_adapter_state {
	ENA_ADAPTER_STATE_FREE    = 0,
	ENA_ADAPTER_STATE_INIT    = 1,
	ENA_ADAPTER_STATE_RUNNING = 2,
	ENA_ADAPTER_STATE_STOPPED = 3,
	ENA_ADAPTER_STATE_CONFIG  = 4,
	ENA_ADAPTER_STATE_CLOSED  = 5,
};

struct ena_driver_stats {
	rte_atomic64_t ierrors;
	rte_atomic64_t oerrors;
	rte_atomic64_t rx_nombuf;
	rte_atomic64_t rx_drops;
};

struct ena_stats_dev {
	u64 wd_expired;
	u64 dev_start;
	u64 dev_stop;
};

struct ena_offloads {
	bool tso4_supported;
	bool tx_csum_supported;
	bool rx_csum_supported;
};

/* board specific private data structure */
struct ena_adapter {
	/* OS defined structs */
	struct rte_pci_device *pdev;
	struct rte_eth_dev_data *rte_eth_dev_data;
	struct rte_eth_dev *rte_dev;

	struct ena_com_dev ena_dev __rte_cache_aligned;

	/* TX */
	struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
	int tx_ring_size;
	u16 max_tx_sgl_size;

	/* RX */
	struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned;
	int rx_ring_size;
	u16 max_rx_sgl_size;

	u16 num_queues;
	u16 max_mtu;
	struct ena_offloads offloads;

	int id_number;
	char name[ENA_NAME_MAX_LEN];
	u8 mac_addr[ETHER_ADDR_LEN];

	void *regs;
	void *dev_mem_base;

	struct ena_driver_stats *drv_stats;
	enum ena_adapter_state state;

	uint64_t tx_supported_offloads;
	uint64_t tx_selected_offloads;
	uint64_t rx_supported_offloads;
	uint64_t rx_selected_offloads;

	bool link_status;

	enum ena_regs_reset_reason_types reset_reason;

	struct rte_timer timer_wd;
	uint64_t timestamp_wd;
	uint64_t keep_alive_timeout;

	struct ena_stats_dev dev_stats;

	bool trigger_reset;

	bool wd_state;
};

#endif /* _ENA_ETHDEV_H_ */