arch/s390/include/asm/pci_clp.h

   1 #ifndef _ASM_S390_PCI_CLP_H
   2 #define _ASM_S390_PCI_CLP_H
   3
   4 #include <asm/clp.h>
   5
   6 /*
   7  * Call Logical Processor - Command Codes
   8  */
   9 #define CLP_LIST_PCI            0x0002
  10 #define CLP_QUERY_PCI_FN        0x0003
  11 #define CLP_QUERY_PCI_FNGRP     0x0004
  12 #define CLP_SET_PCI_FN          0x0005
  13
  14 /* PCI function handle list entry */
  15 struct clp_fh_list_entry {
  16         u16 device_id;
  17         u16 vendor_id;
  18         u32 config_state :  1;
  19         u32              : 31;
  20         u32 fid;                /* PCI function id */
  21         u32 fh;                 /* PCI function handle */
  22 } __packed;
  23
  24 #define CLP_RC_SETPCIFN_FH      0x0101  /* Invalid PCI fn handle */
  25 #define CLP_RC_SETPCIFN_FHOP    0x0102  /* Fn handle not valid for op */
  26 #define CLP_RC_SETPCIFN_DMAAS   0x0103  /* Invalid DMA addr space */
  27 #define CLP_RC_SETPCIFN_RES     0x0104  /* Insufficient resources */
  28 #define CLP_RC_SETPCIFN_ALRDY   0x0105  /* Fn already in requested state */
  29 #define CLP_RC_SETPCIFN_ERR     0x0106  /* Fn in permanent error state */
  30 #define CLP_RC_SETPCIFN_RECPND  0x0107  /* Error recovery pending */
  31 #define CLP_RC_SETPCIFN_BUSY    0x0108  /* Fn busy */
  32 #define CLP_RC_LISTPCI_BADRT    0x010a  /* Resume token not recognized */
  33 #define CLP_RC_QUERYPCIFG_PFGID 0x010b  /* Unrecognized PFGID */
  34
  35 /* request or response block header length */
  36 #define LIST_PCI_HDR_LEN        32
  37
  38 /* Number of function handles fitting in response block */
  39 #define CLP_FH_LIST_NR_ENTRIES                          \
  40         ((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN)          \
  41                 / sizeof(struct clp_fh_list_entry))
  42
  43 #define CLP_SET_ENABLE_PCI_FN   0       /* Yes, 0 enables it */
  44 #define CLP_SET_DISABLE_PCI_FN  1       /* Yes, 1 disables it */
  45
  46 #define CLP_UTIL_STR_LEN        64
  47 #define CLP_PFIP_NR_SEGMENTS    4
  48
  49 /* List PCI functions request */
  50 struct clp_req_list_pci {
  51         struct clp_req_hdr hdr;
  52         u64 resume_token;
  53         u64 reserved2;
  54 } __packed;
  55
  56 /* List PCI functions response */
  57 struct clp_rsp_list_pci {
  58         struct clp_rsp_hdr hdr;
  59         u64 resume_token;
  60         u32 reserved2;
  61         u16 max_fn;
  62         u8 reserved3;
  63         u8 entry_size;
  64         struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES];
  65 } __packed;
  66
  67 /* Query PCI function request */
  68 struct clp_req_query_pci {
  69         struct clp_req_hdr hdr;
  70         u32 fh;                         /* function handle */
  71         u32 reserved2;
  72         u64 reserved3;
  73 } __packed;
  74
  75 /* Query PCI function response */
  76 struct clp_rsp_query_pci {
  77         struct clp_rsp_hdr hdr;
  78         u16 vfn;                        /* virtual fn number */
  79         u16                     :  7;
  80         u16 util_str_avail      :  1;   /* utility string available? */
  81         u16 pfgid               :  8;   /* pci function group id */
  82         u32 fid;                        /* pci function id */
  83         u8 bar_size[PCI_BAR_COUNT];
  84         u16 pchid;
  85         u32 bar[PCI_BAR_COUNT];
  86         u8 pfip[CLP_PFIP_NR_SEGMENTS];  /* pci function internal path */
  87         u32                     : 24;
  88         u8 pft;                         /* pci function type */
  89         u64 sdma;                       /* start dma as */
  90         u64 edma;                       /* end dma as */
  91         u32 reserved[11];
  92         u32 uid;                        /* user defined id */
  93         u8 util_str[CLP_UTIL_STR_LEN];  /* utility string */
  94 } __packed;
  95
  96 /* Query PCI function group request */
  97 struct clp_req_query_pci_grp {
  98         struct clp_req_hdr hdr;
  99         u32 reserved2           : 24;
 100         u32 pfgid               :  8;   /* function group id */
 101         u32 reserved3;
 102         u64 reserved4;
 103 } __packed;
 104
 105 /* Query PCI function group response */
 106 struct clp_rsp_query_pci_grp {
 107         struct clp_rsp_hdr hdr;
 108         u16                     :  4;
 109         u16 noi                 : 12;   /* number of interrupts */
 110         u8 version;
 111         u8                      :  6;
 112         u8 frame                :  1;
 113         u8 refresh              :  1;   /* TLB refresh mode */
 114         u16 reserved2;
 115         u16 mui;
 116         u64 reserved3;
 117         u64 dasm;                       /* dma address space mask */
 118         u64 msia;                       /* MSI address */
 119         u64 reserved4;
 120         u64 reserved5;
 121 } __packed;
 122
 123 /* Set PCI function request */
 124 struct clp_req_set_pci {
 125         struct clp_req_hdr hdr;
 126         u32 fh;                         /* function handle */
 127         u16 reserved2;
 128         u8 oc;                          /* operation controls */
 129         u8 ndas;                        /* number of dma spaces */
 130         u64 reserved3;
 131 } __packed;
 132
 133 /* Set PCI function response */
 134 struct clp_rsp_set_pci {
 135         struct clp_rsp_hdr hdr;
 136         u32 fh;                         /* function handle */
 137         u32 reserved3;
 138         u64 reserved4;
 139 } __packed;
 140
 141 /* Combined request/response block structures used by clp insn */
 142 struct clp_req_rsp_list_pci {
 143         struct clp_req_list_pci request;
 144         struct clp_rsp_list_pci response;
 145 } __packed;
 146
 147 struct clp_req_rsp_set_pci {
 148         struct clp_req_set_pci request;
 149         struct clp_rsp_set_pci response;
 150 } __packed;
 151
 152 struct clp_req_rsp_query_pci {
 153         struct clp_req_query_pci request;
 154         struct clp_rsp_query_pci response;
 155 } __packed;
 156
 157 struct clp_req_rsp_query_pci_grp {
 158         struct clp_req_query_pci_grp request;
 159         struct clp_rsp_query_pci_grp response;
 160 } __packed;
 161
 162 #endif