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      1 /*-
      2  * BSD LICENSE
      3  *
      4  * Copyright (c) 2015-2017 Amazon.com, Inc. or its affiliates.
      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 copyright holder 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 #ifndef _ENA_REGS_H_
     34 #define _ENA_REGS_H_
     35 
     36 enum ena_regs_reset_reason_types {
     37 	ENA_REGS_RESET_NORMAL			= 0,
     38 
     39 	ENA_REGS_RESET_KEEP_ALIVE_TO		= 1,
     40 
     41 	ENA_REGS_RESET_ADMIN_TO			= 2,
     42 
     43 	ENA_REGS_RESET_MISS_TX_CMPL		= 3,
     44 
     45 	ENA_REGS_RESET_INV_RX_REQ_ID		= 4,
     46 
     47 	ENA_REGS_RESET_INV_TX_REQ_ID		= 5,
     48 
     49 	ENA_REGS_RESET_TOO_MANY_RX_DESCS	= 6,
     50 
     51 	ENA_REGS_RESET_INIT_ERR			= 7,
     52 
     53 	ENA_REGS_RESET_DRIVER_INVALID_STATE	= 8,
     54 
     55 	ENA_REGS_RESET_OS_TRIGGER		= 9,
     56 
     57 	ENA_REGS_RESET_OS_NETDEV_WD		= 10,
     58 
     59 	ENA_REGS_RESET_SHUTDOWN			= 11,
     60 
     61 	ENA_REGS_RESET_USER_TRIGGER		= 12,
     62 
     63 	ENA_REGS_RESET_GENERIC			= 13,
     64 };
     65 
     66 /* ena_registers offsets */
     67 #define ENA_REGS_VERSION_OFF		0x0
     68 #define ENA_REGS_CONTROLLER_VERSION_OFF		0x4
     69 #define ENA_REGS_CAPS_OFF		0x8
     70 #define ENA_REGS_CAPS_EXT_OFF		0xc
     71 #define ENA_REGS_AQ_BASE_LO_OFF		0x10
     72 #define ENA_REGS_AQ_BASE_HI_OFF		0x14
     73 #define ENA_REGS_AQ_CAPS_OFF		0x18
     74 #define ENA_REGS_ACQ_BASE_LO_OFF		0x20
     75 #define ENA_REGS_ACQ_BASE_HI_OFF		0x24
     76 #define ENA_REGS_ACQ_CAPS_OFF		0x28
     77 #define ENA_REGS_AQ_DB_OFF		0x2c
     78 #define ENA_REGS_ACQ_TAIL_OFF		0x30
     79 #define ENA_REGS_AENQ_CAPS_OFF		0x34
     80 #define ENA_REGS_AENQ_BASE_LO_OFF		0x38
     81 #define ENA_REGS_AENQ_BASE_HI_OFF		0x3c
     82 #define ENA_REGS_AENQ_HEAD_DB_OFF		0x40
     83 #define ENA_REGS_AENQ_TAIL_OFF		0x44
     84 #define ENA_REGS_INTR_MASK_OFF		0x4c
     85 #define ENA_REGS_DEV_CTL_OFF		0x54
     86 #define ENA_REGS_DEV_STS_OFF		0x58
     87 #define ENA_REGS_MMIO_REG_READ_OFF		0x5c
     88 #define ENA_REGS_MMIO_RESP_LO_OFF		0x60
     89 #define ENA_REGS_MMIO_RESP_HI_OFF		0x64
     90 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_OFF		0x68
     91 
     92 /* version register */
     93 #define ENA_REGS_VERSION_MINOR_VERSION_MASK		0xff
     94 #define ENA_REGS_VERSION_MAJOR_VERSION_SHIFT		8
     95 #define ENA_REGS_VERSION_MAJOR_VERSION_MASK		0xff00
     96 
     97 /* controller_version register */
     98 #define ENA_REGS_CONTROLLER_VERSION_SUBMINOR_VERSION_MASK		0xff
     99 #define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_SHIFT		8
    100 #define ENA_REGS_CONTROLLER_VERSION_MINOR_VERSION_MASK		0xff00
    101 #define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_SHIFT		16
    102 #define ENA_REGS_CONTROLLER_VERSION_MAJOR_VERSION_MASK		0xff0000
    103 #define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_SHIFT		24
    104 #define ENA_REGS_CONTROLLER_VERSION_IMPL_ID_MASK		0xff000000
    105 
    106 /* caps register */
    107 #define ENA_REGS_CAPS_CONTIGUOUS_QUEUE_REQUIRED_MASK		0x1
    108 #define ENA_REGS_CAPS_RESET_TIMEOUT_SHIFT		1
    109 #define ENA_REGS_CAPS_RESET_TIMEOUT_MASK		0x3e
    110 #define ENA_REGS_CAPS_DMA_ADDR_WIDTH_SHIFT		8
    111 #define ENA_REGS_CAPS_DMA_ADDR_WIDTH_MASK		0xff00
    112 #define ENA_REGS_CAPS_ADMIN_CMD_TO_SHIFT		16
    113 #define ENA_REGS_CAPS_ADMIN_CMD_TO_MASK		0xf0000
    114 
    115 /* aq_caps register */
    116 #define ENA_REGS_AQ_CAPS_AQ_DEPTH_MASK		0xffff
    117 #define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_SHIFT		16
    118 #define ENA_REGS_AQ_CAPS_AQ_ENTRY_SIZE_MASK		0xffff0000
    119 
    120 /* acq_caps register */
    121 #define ENA_REGS_ACQ_CAPS_ACQ_DEPTH_MASK		0xffff
    122 #define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_SHIFT		16
    123 #define ENA_REGS_ACQ_CAPS_ACQ_ENTRY_SIZE_MASK		0xffff0000
    124 
    125 /* aenq_caps register */
    126 #define ENA_REGS_AENQ_CAPS_AENQ_DEPTH_MASK		0xffff
    127 #define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_SHIFT		16
    128 #define ENA_REGS_AENQ_CAPS_AENQ_ENTRY_SIZE_MASK		0xffff0000
    129 
    130 /* dev_ctl register */
    131 #define ENA_REGS_DEV_CTL_DEV_RESET_MASK		0x1
    132 #define ENA_REGS_DEV_CTL_AQ_RESTART_SHIFT		1
    133 #define ENA_REGS_DEV_CTL_AQ_RESTART_MASK		0x2
    134 #define ENA_REGS_DEV_CTL_QUIESCENT_SHIFT		2
    135 #define ENA_REGS_DEV_CTL_QUIESCENT_MASK		0x4
    136 #define ENA_REGS_DEV_CTL_IO_RESUME_SHIFT		3
    137 #define ENA_REGS_DEV_CTL_IO_RESUME_MASK		0x8
    138 #define ENA_REGS_DEV_CTL_RESET_REASON_SHIFT		28
    139 #define ENA_REGS_DEV_CTL_RESET_REASON_MASK		0xf0000000
    140 
    141 /* dev_sts register */
    142 #define ENA_REGS_DEV_STS_READY_MASK		0x1
    143 #define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_SHIFT		1
    144 #define ENA_REGS_DEV_STS_AQ_RESTART_IN_PROGRESS_MASK		0x2
    145 #define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_SHIFT		2
    146 #define ENA_REGS_DEV_STS_AQ_RESTART_FINISHED_MASK		0x4
    147 #define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_SHIFT		3
    148 #define ENA_REGS_DEV_STS_RESET_IN_PROGRESS_MASK		0x8
    149 #define ENA_REGS_DEV_STS_RESET_FINISHED_SHIFT		4
    150 #define ENA_REGS_DEV_STS_RESET_FINISHED_MASK		0x10
    151 #define ENA_REGS_DEV_STS_FATAL_ERROR_SHIFT		5
    152 #define ENA_REGS_DEV_STS_FATAL_ERROR_MASK		0x20
    153 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_SHIFT		6
    154 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_IN_PROGRESS_MASK		0x40
    155 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_SHIFT		7
    156 #define ENA_REGS_DEV_STS_QUIESCENT_STATE_ACHIEVED_MASK		0x80
    157 
    158 /* mmio_reg_read register */
    159 #define ENA_REGS_MMIO_REG_READ_REQ_ID_MASK		0xffff
    160 #define ENA_REGS_MMIO_REG_READ_REG_OFF_SHIFT		16
    161 #define ENA_REGS_MMIO_REG_READ_REG_OFF_MASK		0xffff0000
    162 
    163 /* rss_ind_entry_update register */
    164 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_INDEX_MASK		0xffff
    165 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_SHIFT		16
    166 #define ENA_REGS_RSS_IND_ENTRY_UPDATE_CQ_IDX_MASK		0xffff0000
    167 
    168 #endif /*_ENA_REGS_H_ */
    169