xref: /freebsd/sys/dev/ioat/ioat_hw.h (revision 31bf2875ea646576423eb2ba9995606464840f95)
1 /*-
2  * Copyright (C) 2012 Intel Corporation
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 __FBSDID("$FreeBSD$");
28 
29 #ifndef __IOAT_HW_H__
30 #define __IOAT_HW_H__
31 
32 #define	IOAT_MAX_CHANNELS		32
33 
34 #define	IOAT_CHANCNT_OFFSET		0x00
35 
36 #define	IOAT_XFERCAP_OFFSET		0x01
37 /* Only bits [4:0] are valid. */
38 #define	IOAT_XFERCAP_VALID_MASK		0x1f
39 
40 #define	IOAT_GENCTRL_OFFSET		0x02
41 
42 #define	IOAT_INTRCTRL_OFFSET		0x03
43 #define	IOAT_INTRCTRL_MASTER_INT_EN	0x01
44 
45 #define	IOAT_ATTNSTATUS_OFFSET		0x04
46 
47 #define	IOAT_CBVER_OFFSET		0x08
48 
49 #define	IOAT_INTRDELAY_OFFSET		0x0C
50 #define	IOAT_INTRDELAY_SUPPORTED	(1 << 15)
51 /* Reserved.				(1 << 14) */
52 /* [13:0] is the coalesce period, in microseconds. */
53 #define	IOAT_INTRDELAY_US_MASK		((1 << 14) - 1)
54 
55 #define	IOAT_CS_STATUS_OFFSET		0x0E
56 
57 #define	IOAT_DMACAPABILITY_OFFSET	0x10
58 #define	IOAT_DMACAP_PB			(1 << 0)
59 #define	IOAT_DMACAP_DCA			(1 << 4)
60 #define	IOAT_DMACAP_BFILL		(1 << 6)
61 #define	IOAT_DMACAP_XOR			(1 << 8)
62 #define	IOAT_DMACAP_PQ			(1 << 9)
63 #define	IOAT_DMACAP_DMA_DIF		(1 << 10)
64 #define	IOAT_DMACAP_DWBES		(1 << 13)
65 #define	IOAT_DMACAP_RAID16SS		(1 << 17)
66 #define	IOAT_DMACAP_DMAMC		(1 << 18)
67 #define	IOAT_DMACAP_CTOS		(1 << 19)
68 
69 #define	IOAT_DMACAP_STR \
70     "\20\24Completion_Timeout_Support\23DMA_with_Multicasting_Support" \
71     "\22RAID_Super_descriptors\16Descriptor_Write_Back_Error_Support" \
72     "\13DMA_with_DIF\12PQ\11XOR\07Block_Fill\05DCA\01Page_Break"
73 
74 /* DMA Channel Registers */
75 #define	IOAT_CHANCTRL_OFFSET			0x80
76 #define	IOAT_CHANCTRL_CHANNEL_PRIORITY_MASK	0xF000
77 #define	IOAT_CHANCTRL_COMPL_DCA_EN		0x0200
78 #define	IOAT_CHANCTRL_CHANNEL_IN_USE		0x0100
79 #define	IOAT_CHANCTRL_DESCRIPTOR_ADDR_SNOOP_CONTROL	0x0020
80 #define	IOAT_CHANCTRL_ERR_INT_EN		0x0010
81 #define	IOAT_CHANCTRL_ANY_ERR_ABORT_EN		0x0008
82 #define	IOAT_CHANCTRL_ERR_COMPLETION_EN		0x0004
83 #define	IOAT_CHANCTRL_INT_REARM			0x0001
84 #define	IOAT_CHANCTRL_RUN			(IOAT_CHANCTRL_INT_REARM |\
85 						 IOAT_CHANCTRL_ERR_COMPLETION_EN |\
86 						 IOAT_CHANCTRL_ANY_ERR_ABORT_EN |\
87 						 IOAT_CHANCTRL_ERR_INT_EN)
88 
89 #define	IOAT_CHANCMD_OFFSET		0x84
90 #define	IOAT_CHANCMD_RESET		0x20
91 #define	IOAT_CHANCMD_SUSPEND		0x04
92 
93 #define	IOAT_DMACOUNT_OFFSET		0x86
94 
95 #define	IOAT_CHANSTS_OFFSET_LOW		0x88
96 #define	IOAT_CHANSTS_OFFSET_HIGH	0x8C
97 #define	IOAT_CHANSTS_OFFSET		0x88
98 
99 #define	IOAT_CHANSTS_STATUS		0x7ULL
100 #define	IOAT_CHANSTS_ACTIVE		0x0
101 #define	IOAT_CHANSTS_IDLE		0x1
102 #define	IOAT_CHANSTS_SUSPENDED		0x2
103 #define	IOAT_CHANSTS_HALTED		0x3
104 #define	IOAT_CHANSTS_ARMED		0x4
105 
106 #define	IOAT_CHANSTS_UNAFFILIATED_ERROR	0x8ULL
107 #define	IOAT_CHANSTS_SOFT_ERROR		0x10ULL
108 
109 #define	IOAT_CHANSTS_COMPLETED_DESCRIPTOR_MASK	(~0x3FULL)
110 
111 #define	IOAT_CHAINADDR_OFFSET_LOW	0x90
112 #define	IOAT_CHAINADDR_OFFSET_HIGH	0x94
113 
114 #define	IOAT_CHANCMP_OFFSET_LOW		0x98
115 #define	IOAT_CHANCMP_OFFSET_HIGH	0x9C
116 
117 #define	IOAT_CHANERR_OFFSET		0xA8
118 
119 #define	IOAT_CHANERR_XSADDERR		(1 << 0)
120 #define	IOAT_CHANERR_XDADDERR		(1 << 1)
121 #define	IOAT_CHANERR_NDADDERR		(1 << 2)
122 #define	IOAT_CHANERR_DERR		(1 << 3)
123 #define	IOAT_CHANERR_CHADDERR		(1 << 4)
124 #define	IOAT_CHANERR_CCMDERR		(1 << 5)
125 #define	IOAT_CHANERR_CUNCORERR		(1 << 6)
126 #define	IOAT_CHANERR_DUNCORERR		(1 << 7)
127 #define	IOAT_CHANERR_RDERR		(1 << 8)
128 #define	IOAT_CHANERR_WDERR		(1 << 9)
129 #define	IOAT_CHANERR_DCERR		(1 << 10)
130 #define	IOAT_CHANERR_DXSERR		(1 << 11)
131 #define	IOAT_CHANERR_CMPADDERR		(1 << 12)
132 #define	IOAT_CHANERR_INTCFGERR		(1 << 13)
133 #define	IOAT_CHANERR_SEDERR		(1 << 14)
134 #define	IOAT_CHANERR_UNAFFERR		(1 << 15)
135 #define	IOAT_CHANERR_CXPERR		(1 << 16)
136 /* Reserved.				(1 << 17) */
137 #define	IOAT_CHANERR_DCNTERR		(1 << 18)
138 #define	IOAT_CHANERR_DIFFERR		(1 << 19)
139 #define	IOAT_CHANERR_GTVERR		(1 << 20)
140 #define	IOAT_CHANERR_ATVERR		(1 << 21)
141 #define	IOAT_CHANERR_RTVERR		(1 << 22)
142 #define	IOAT_CHANERR_BBERR		(1 << 23)
143 #define	IOAT_CHANERR_RDIFFERR		(1 << 24)
144 #define	IOAT_CHANERR_RGTVERR		(1 << 25)
145 #define	IOAT_CHANERR_RATVERR		(1 << 26)
146 #define	IOAT_CHANERR_RRTVERR		(1 << 27)
147 
148 #define	IOAT_CHANERR_STR \
149     "\20\34RRTVERR\33RATVERR\32RGTVERR\31RDIFFERR\30BBERR\27RTVERR\26ATVERR" \
150     "\25GTVERR\24DIFFERR\23DCNTERR\21CXPERR\20UNAFFERR\17SEDERR\16INTCFGERR" \
151     "\15CMPADDERR\14DXSERR\13DCERR\12WDERR\11RDERR\10DUNCORERR\07CUNCORERR" \
152     "\06CCMDERR\05CHADDERR\04DERR\03NDADDERR\02XDADDERR\01XSADDERR"
153 
154 
155 #define	IOAT_CFG_CHANERR_INT_OFFSET		0x180
156 #define	IOAT_CFG_CHANERRMASK_INT_OFFSET		0x184
157 
158 #define	IOAT_MIN_ORDER			4
159 #define	IOAT_MAX_ORDER			16
160 
161 #endif /* __IOAT_HW_H__ */
162