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1 /*
2 * s390 CLP instruction definitions
3 *
4 * Copyright 2019 IBM Corp.
5 * Author(s): Pierre Morel <pmorel@de.ibm.com>
6 *
7 * This work is licensed under the terms of the GNU GPL, version 2 or (at
8 * your option) any later version. See the COPYING file in the top-level
9 * directory.
10 */
11
12 #ifndef HW_S390_PCI_CLP_H
13 #define HW_S390_PCI_CLP_H
14
15 /* CLP common request & response block size */
16 #define CLP_BLK_SIZE 4096
17 #define PCI_BAR_COUNT 6
18 #define PCI_MAX_FUNCTIONS 4096
19
20 typedef struct ClpReqHdr {
21 uint16_t len;
22 uint16_t cmd;
23 } QEMU_PACKED ClpReqHdr;
24
25 typedef struct ClpRspHdr {
26 uint16_t len;
27 uint16_t rsp;
28 } QEMU_PACKED ClpRspHdr;
29
30 /* CLP Response Codes */
31 #define CLP_RC_OK 0x0010 /* Command request successfully */
32 #define CLP_RC_CMD 0x0020 /* Command code not recognized */
33 #define CLP_RC_PERM 0x0030 /* Command not authorized */
34 #define CLP_RC_FMT 0x0040 /* Invalid command request format */
35 #define CLP_RC_LEN 0x0050 /* Invalid command request length */
36 #define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */
37 #define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */
38 #define CLP_RC_NODATA 0x0080 /* No data available */
39 #define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */
40
41 /*
42 * Call Logical Processor - Command Codes
43 */
44 #define CLP_LIST_PCI 0x0002
45 #define CLP_QUERY_PCI_FN 0x0003
46 #define CLP_QUERY_PCI_FNGRP 0x0004
47 #define CLP_SET_PCI_FN 0x0005
48
49 /* PCI function handle list entry */
50 typedef struct ClpFhListEntry {
51 uint16_t device_id;
52 uint16_t vendor_id;
53 #define CLP_FHLIST_MASK_CONFIG 0x80000000
54 uint32_t config;
55 uint32_t fid;
56 uint32_t fh;
57 } QEMU_PACKED ClpFhListEntry;
58
59 #define CLP_RC_SETPCIFN_FH 0x0101 /* Invalid PCI fn handle */
60 #define CLP_RC_SETPCIFN_FHOP 0x0102 /* Fn handle not valid for op */
61 #define CLP_RC_SETPCIFN_DMAAS 0x0103 /* Invalid DMA addr space */
62 #define CLP_RC_SETPCIFN_RES 0x0104 /* Insufficient resources */
63 #define CLP_RC_SETPCIFN_ALRDY 0x0105 /* Fn already in requested state */
64 #define CLP_RC_SETPCIFN_ERR 0x0106 /* Fn in permanent error state */
65 #define CLP_RC_SETPCIFN_RECPND 0x0107 /* Error recovery pending */
66 #define CLP_RC_SETPCIFN_BUSY 0x0108 /* Fn busy */
67 #define CLP_RC_LISTPCI_BADRT 0x010a /* Resume token not recognized */
68 #define CLP_RC_QUERYPCIFG_PFGID 0x010b /* Unrecognized PFGID */
69
70 /* request or response block header length */
71 #define LIST_PCI_HDR_LEN 32
72
73 /* Number of function handles fitting in response block */
74 #define CLP_FH_LIST_NR_ENTRIES \
75 ((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN) \
76 / sizeof(ClpFhListEntry))
77
78 #define CLP_SET_ENABLE_PCI_FN 0 /* Yes, 0 enables it */
79 #define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */
80
81 #define CLP_UTIL_STR_LEN 64
82 #define CLP_PFIP_NR_SEGMENTS 4
83
84 #define CLP_MASK_FMT 0xf0000000
85
86 /* List PCI functions request */
87 typedef struct ClpReqListPci {
88 ClpReqHdr hdr;
89 uint32_t fmt;
90 uint64_t reserved1;
91 uint64_t resume_token;
92 uint64_t reserved2;
93 } QEMU_PACKED ClpReqListPci;
94
95 /* List PCI functions response */
96 typedef struct ClpRspListPci {
97 ClpRspHdr hdr;
98 uint32_t fmt;
99 uint64_t reserved1;
100 uint64_t resume_token;
101 uint32_t mdd;
102 uint16_t max_fn;
103 uint8_t flags;
104 uint8_t entry_size;
105 ClpFhListEntry fh_list[CLP_FH_LIST_NR_ENTRIES];
106 } QEMU_PACKED ClpRspListPci;
107
108 /* Query PCI function request */
109 typedef struct ClpReqQueryPci {
110 ClpReqHdr hdr;
111 uint32_t fmt;
112 uint64_t reserved1;
113 uint32_t fh; /* function handle */
114 uint32_t reserved2;
115 uint64_t reserved3;
116 } QEMU_PACKED ClpReqQueryPci;
117
118 /* Query PCI function response */
119 typedef struct ClpRspQueryPci {
120 ClpRspHdr hdr;
121 uint32_t fmt;
122 uint64_t reserved1;
123 uint16_t vfn; /* virtual fn number */
124 #define CLP_RSP_QPCI_MASK_UTIL 0x01
125 uint8_t flags;
126 uint8_t pfgid;
127 uint32_t fid; /* pci function id */
128 uint8_t bar_size[PCI_BAR_COUNT];
129 uint16_t pchid;
130 uint32_t bar[PCI_BAR_COUNT];
131 uint8_t pfip[CLP_PFIP_NR_SEGMENTS];
132 uint16_t reserved2;
133 uint8_t fmbl;
134 uint8_t pft;
135 uint64_t sdma; /* start dma as */
136 uint64_t edma; /* end dma as */
137 uint32_t reserved3[11];
138 uint32_t uid;
139 uint8_t util_str[CLP_UTIL_STR_LEN]; /* utility string */
140 } QEMU_PACKED ClpRspQueryPci;
141
142 /* Query PCI function group request */
143 typedef struct ClpReqQueryPciGrp {
144 ClpReqHdr hdr;
145 uint32_t fmt;
146 uint64_t reserved1;
147 uint8_t reserved2[3];
148 uint8_t g;
149 uint32_t reserved3;
150 uint64_t reserved4;
151 } QEMU_PACKED ClpReqQueryPciGrp;
152
153 /* Query PCI function group response */
154 typedef struct ClpRspQueryPciGrp {
155 ClpRspHdr hdr;
156 uint32_t fmt;
157 uint64_t reserved1;
158 #define CLP_RSP_QPCIG_MASK_NOI 0xfff
159 uint16_t i;
160 uint8_t version;
161 #define CLP_RSP_QPCIG_MASK_RTR 0x20
162 #define CLP_RSP_QPCIG_MASK_FRAME 0x2
163 #define CLP_RSP_QPCIG_MASK_REFRESH 0x1
164 uint8_t fr;
165 uint16_t maxstbl;
166 uint16_t mui;
167 uint8_t dtsm;
168 uint8_t reserved3[7];
169 uint64_t dasm; /* dma address space mask */
170 uint64_t msia; /* MSI address */
171 uint64_t reserved4;
172 uint64_t reserved5;
173 } QEMU_PACKED ClpRspQueryPciGrp;
174
175 /* Set PCI function request */
176 typedef struct ClpReqSetPci {
177 ClpReqHdr hdr;
178 uint32_t fmt;
179 uint64_t reserved1;
180 uint32_t fh; /* function handle */
181 uint16_t reserved2;
182 uint8_t oc; /* operation controls */
183 uint8_t ndas; /* number of dma spaces */
184 uint64_t reserved3;
185 } QEMU_PACKED ClpReqSetPci;
186
187 /* Set PCI function response */
188 typedef struct ClpRspSetPci {
189 ClpRspHdr hdr;
190 uint32_t fmt;
191 uint64_t reserved1;
192 uint32_t fh; /* function handle */
193 uint32_t reserved3;
194 uint64_t reserved4;
195 } QEMU_PACKED ClpRspSetPci;
196
197 typedef struct ClpReqRspListPci {
198 ClpReqListPci request;
199 ClpRspListPci response;
200 } QEMU_PACKED ClpReqRspListPci;
201
202 typedef struct ClpReqRspSetPci {
203 ClpReqSetPci request;
204 ClpRspSetPci response;
205 } QEMU_PACKED ClpReqRspSetPci;
206
207 typedef struct ClpReqRspQueryPci {
208 ClpReqQueryPci request;
209 ClpRspQueryPci response;
210 } QEMU_PACKED ClpReqRspQueryPci;
211
212 typedef struct ClpReqRspQueryPciGrp {
213 ClpReqQueryPciGrp request;
214 ClpRspQueryPciGrp response;
215 } QEMU_PACKED ClpReqRspQueryPciGrp;
216
217 #endif