include/hw/s390x/s390-pci-clp.h

   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
  13 #define HW_S390_PCI_CLP
  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 #define CLP_REQ_QPCIG_MASK_PFGID 0xff
 148     uint32_t g;
 149     uint32_t reserved2;
 150     uint64_t reserved3;
 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_FRAME   0x2
 162 #define CLP_RSP_QPCIG_MASK_REFRESH 0x1
 163     uint8_t fr;
 164     uint16_t maxstbl;
 165     uint16_t mui;
 166     uint64_t reserved3;
 167     uint64_t dasm; /* dma address space mask */
 168     uint64_t msia; /* MSI address */
 169     uint64_t reserved4;
 170     uint64_t reserved5;
 171 } QEMU_PACKED ClpRspQueryPciGrp;
 172
 173 /* Set PCI function request */
 174 typedef struct ClpReqSetPci {
 175     ClpReqHdr hdr;
 176     uint32_t fmt;
 177     uint64_t reserved1;
 178     uint32_t fh; /* function handle */
 179     uint16_t reserved2;
 180     uint8_t oc; /* operation controls */
 181     uint8_t ndas; /* number of dma spaces */
 182     uint64_t reserved3;
 183 } QEMU_PACKED ClpReqSetPci;
 184
 185 /* Set PCI function response */
 186 typedef struct ClpRspSetPci {
 187     ClpRspHdr hdr;
 188     uint32_t fmt;
 189     uint64_t reserved1;
 190     uint32_t fh; /* function handle */
 191     uint32_t reserved3;
 192     uint64_t reserved4;
 193 } QEMU_PACKED ClpRspSetPci;
 194
 195 typedef struct ClpReqRspListPci {
 196     ClpReqListPci request;
 197     ClpRspListPci response;
 198 } QEMU_PACKED ClpReqRspListPci;
 199
 200 typedef struct ClpReqRspSetPci {
 201     ClpReqSetPci request;
 202     ClpRspSetPci response;
 203 } QEMU_PACKED ClpReqRspSetPci;
 204
 205 typedef struct ClpReqRspQueryPci {
 206     ClpReqQueryPci request;
 207     ClpRspQueryPci response;
 208 } QEMU_PACKED ClpReqRspQueryPci;
 209
 210 typedef struct ClpReqRspQueryPciGrp {
 211     ClpReqQueryPciGrp request;
 212     ClpRspQueryPciGrp response;
 213 } QEMU_PACKED ClpReqRspQueryPciGrp;
 214
 215 #endif