xref: /linux/drivers/net/ethernet/amazon/ena/ena_regs_defs.h (revision e58e871becec2d3b04ed91c0c16fe8deac9c9dfa)
1 /*
2  * Copyright 2015 - 2016 Amazon.com, Inc. or its affiliates.
3  *
4  * This software is available to you under a choice of one of two
5  * licenses.  You may choose to be licensed under the terms of the GNU
6  * General Public License (GPL) Version 2, available from the file
7  * COPYING in the main directory of this source tree, or the
8  * BSD license below:
9  *
10  *     Redistribution and use in source and binary forms, with or
11  *     without modification, are permitted provided that the following
12  *     conditions are met:
13  *
14  *      - Redistributions of source code must retain the above
15  *        copyright notice, this list of conditions and the following
16  *        disclaimer.
17  *
18  *      - Redistributions in binary form must reproduce the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer in the documentation and/or other materials
21  *        provided with the distribution.
22  *
23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
30  * SOFTWARE.
31  */
32 #ifndef _ENA_REGS_H_
33 #define _ENA_REGS_H_
34 
35 /* ena_registers offsets */
36 #define ENA_REGS_VERSION_OFF		0x0
37 #define ENA_REGS_CONTROLLER_VERSION_OFF		0x4
38 #define ENA_REGS_CAPS_OFF		0x8
39 #define ENA_REGS_CAPS_EXT_OFF		0xc
40 #define ENA_REGS_AQ_BASE_LO_OFF		0x10
41 #define ENA_REGS_AQ_BASE_HI_OFF		0x14
42 #define ENA_REGS_AQ_CAPS_OFF		0x18
43 #define ENA_REGS_ACQ_BASE_LO_OFF		0x20
44 #define ENA_REGS_ACQ_BASE_HI_OFF		0x24
45 #define ENA_REGS_ACQ_CAPS_OFF		0x28
46 #define ENA_REGS_AQ_DB_OFF		0x2c
47 #define ENA_REGS_ACQ_TAIL_OFF		0x30
48 #define ENA_REGS_AENQ_CAPS_OFF		0x34
49 #define ENA_REGS_AENQ_BASE_LO_OFF		0x38
50 #define ENA_REGS_AENQ_BASE_HI_OFF		0x3c
51 #define ENA_REGS_AENQ_HEAD_DB_OFF		0x40
52 #define ENA_REGS_AENQ_TAIL_OFF		0x44
53 #define ENA_REGS_INTR_MASK_OFF		0x4c
54 #define ENA_REGS_DEV_CTL_OFF		0x54
55 #define ENA_REGS_DEV_STS_OFF		0x58
56 #define ENA_REGS_MMIO_REG_READ_OFF		0x5c
57 #define ENA_REGS_MMIO_RESP_LO_OFF		0x60
58 #define ENA_REGS_MMIO_RESP_HI_OFF		0x64
59 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_OFF		0x68
60 
61 /* version register */
62 #define ENA_REGS_VERSION_MINOR_VERSION_MASK		0xff
63 #define ENA_REGS_VERSION_MAJOR_VERSION_SHIFT		8
64 #define ENA_REGS_VERSION_MAJOR_VERSION_MASK		0xff00
65 
66 /* controller_version register */
67 #define ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK		0xff
68 #define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT		8
69 #define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK		0xff00
70 #define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT		16
71 #define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK		0xff0000
72 #define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT		24
73 #define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK		0xff000000
74 
75 /* caps register */
76 #define ENA_REGS_CAPS_CONTIGUOUS_QUEUE_REQUIRED_MASK		0x1
77 #define ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT		1
78 #define ENA_REGS_CAPS_RESET_TIMEOUT_MASK		0x3e
79 #define ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT		8
80 #define ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK		0xff00
81 
82 /* aq_caps register */
83 #define ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK		0xffff
84 #define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT		16
85 #define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK		0xffff0000
86 
87 /* acq_caps register */
88 #define ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK		0xffff
89 #define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT		16
90 #define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK		0xffff0000
91 
92 /* aenq_caps register */
93 #define ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK		0xffff
94 #define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT		16
95 #define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK		0xffff0000
96 
97 /* dev_ctl register */
98 #define ENA_REGS_DEV_CTL_DEV_RESET_MASK		0x1
99 #define ENA_REGS_DEV_CTL_AQ_RESTART_SHIFT		1
100 #define ENA_REGS_DEV_CTL_AQ_RESTART_MASK		0x2
101 #define ENA_REGS_DEV_CTL_QUIESCENT_SHIFT		2
102 #define ENA_REGS_DEV_CTL_QUIESCENT_MASK		0x4
103 #define ENA_REGS_DEV_CTL_IO_RESUME_SHIFT		3
104 #define ENA_REGS_DEV_CTL_IO_RESUME_MASK		0x8
105 
106 /* dev_sts register */
107 #define ENA_REGS_DEV_STS_READY_MASK		0x1
108 #define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_SHIFT		1
109 #define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_MASK		0x2
110 #define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_SHIFT		2
111 #define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_MASK		0x4
112 #define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_SHIFT		3
113 #define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK		0x8
114 #define ENA_REGS_DEV_STS_RESET_FINISHED_SHIFT		4
115 #define ENA_REGS_DEV_STS_RESET_FINISHED_MASK		0x10
116 #define ENA_REGS_DEV_STS_FATAL_ERROR_SHIFT		5
117 #define ENA_REGS_DEV_STS_FATAL_ERROR_MASK		0x20
118 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_SHIFT		6
119 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_MASK		0x40
120 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_SHIFT		7
121 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_MASK		0x80
122 
123 /* mmio_reg_read register */
124 #define ENA_REGS_MMIO_REG_READ_REQ_ID_MASK		0xffff
125 #define ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT		16
126 #define ENA_REGS_MMIO_REG_READ_REG_OFF_MASK		0xffff0000
127 
128 /* rss_ind_entry_update register */
129 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_INDEX_MASK		0xffff
130 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_SHIFT		16
131 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_MASK		0xffff0000
132 
133 #endif /*_ENA_REGS_H_ */
134