arch/s390/include/asm/pci_clp.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_S390_PCI_CLP_H
   3 #define _ASM_S390_PCI_CLP_H
   4
   5 #include <asm/clp.h>
   6
   7 /*
   8  * Call Logical Processor - Command Codes
   9  */
  10 #define CLP_LIST_PCI            0x0002
  11 #define CLP_QUERY_PCI_FN        0x0003
  12 #define CLP_QUERY_PCI_FNGRP     0x0004
  13 #define CLP_SET_PCI_FN          0x0005
  14
  15 /* PCI function handle list entry */
  16 struct clp_fh_list_entry {
  17         u16 device_id;
  18         u16 vendor_id;
  19         u32 config_state :  1;
  20         u32              : 31;
  21         u32 fid;                /* PCI function id */
  22         u32 fh;                 /* PCI function handle */
  23 } __packed;
  24
  25 #define CLP_RC_SETPCIFN_FH      0x0101  /* Invalid PCI fn handle */
  26 #define CLP_RC_SETPCIFN_FHOP    0x0102  /* Fn handle not valid for op */
  27 #define CLP_RC_SETPCIFN_DMAAS   0x0103  /* Invalid DMA addr space */
  28 #define CLP_RC_SETPCIFN_RES     0x0104  /* Insufficient resources */
  29 #define CLP_RC_SETPCIFN_ALRDY   0x0105  /* Fn already in requested state */
  30 #define CLP_RC_SETPCIFN_ERR     0x0106  /* Fn in permanent error state */
  31 #define CLP_RC_SETPCIFN_RECPND  0x0107  /* Error recovery pending */
  32 #define CLP_RC_SETPCIFN_BUSY    0x0108  /* Fn busy */
  33 #define CLP_RC_LISTPCI_BADRT    0x010a  /* Resume token not recognized */
  34 #define CLP_RC_QUERYPCIFG_PFGID 0x010b  /* Unrecognized PFGID */
  35
  36 /* request or response block header length */
  37 #define LIST_PCI_HDR_LEN        32
  38
  39 /* Number of function handles fitting in response block */
  40 #define CLP_FH_LIST_NR_ENTRIES                          \
  41         ((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN)          \
  42                 / sizeof(struct clp_fh_list_entry))
  43
  44 #define CLP_SET_ENABLE_PCI_FN   0       /* Yes, 0 enables it */
  45 #define CLP_SET_DISABLE_PCI_FN  1       /* Yes, 1 disables it */
  46
  47 #define CLP_UTIL_STR_LEN        64
  48 #define CLP_PFIP_NR_SEGMENTS    4
  49
  50 extern bool zpci_unique_uid;
  51
  52 /* List PCI functions request */
  53 struct clp_req_list_pci {
  54         struct clp_req_hdr hdr;
  55         u64 resume_token;
  56         u64 reserved2;
  57 } __packed;
  58
  59 /* List PCI functions response */
  60 struct clp_rsp_list_pci {
  61         struct clp_rsp_hdr hdr;
  62         u64 resume_token;
  63         u32 reserved2;
  64         u16 max_fn;
  65         u8                      : 7;
  66         u8 uid_checking         : 1;
  67         u8 entry_size;
  68         struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES];
  69 } __packed;
  70
  71 /* Query PCI function request */
  72 struct clp_req_query_pci {
  73         struct clp_req_hdr hdr;
  74         u32 fh;                         /* function handle */
  75         u32 reserved2;
  76         u64 reserved3;
  77 } __packed;
  78
  79 /* Query PCI function response */
  80 struct clp_rsp_query_pci {
  81         struct clp_rsp_hdr hdr;
  82         u16 vfn;                        /* virtual fn number */
  83         u16                     :  7;
  84         u16 util_str_avail      :  1;   /* utility string available? */
  85         u16 pfgid               :  8;   /* pci function group id */
  86         u32 fid;                        /* pci function id */
  87         u8 bar_size[PCI_BAR_COUNT];
  88         u16 pchid;
  89         __le32 bar[PCI_BAR_COUNT];
  90         u8 pfip[CLP_PFIP_NR_SEGMENTS];  /* pci function internal path */
  91         u32                     : 16;
  92         u8 fmb_len;
  93         u8 pft;                         /* pci function type */
  94         u64 sdma;                       /* start dma as */
  95         u64 edma;                       /* end dma as */
  96         u32 reserved[11];
  97         u32 uid;                        /* user defined id */
  98         u8 util_str[CLP_UTIL_STR_LEN];  /* utility string */
  99 } __packed;
 100
 101 /* Query PCI function group request */
 102 struct clp_req_query_pci_grp {
 103         struct clp_req_hdr hdr;
 104         u32 reserved2           : 24;
 105         u32 pfgid               :  8;   /* function group id */
 106         u32 reserved3;
 107         u64 reserved4;
 108 } __packed;
 109
 110 /* Query PCI function group response */
 111 struct clp_rsp_query_pci_grp {
 112         struct clp_rsp_hdr hdr;
 113         u16                     :  4;
 114         u16 noi                 : 12;   /* number of interrupts */
 115         u8 version;
 116         u8                      :  6;
 117         u8 frame                :  1;
 118         u8 refresh              :  1;   /* TLB refresh mode */
 119         u16 reserved2;
 120         u16 mui;
 121         u64 reserved3;
 122         u64 dasm;                       /* dma address space mask */
 123         u64 msia;                       /* MSI address */
 124         u64 reserved4;
 125         u64 reserved5;
 126 } __packed;
 127
 128 /* Set PCI function request */
 129 struct clp_req_set_pci {
 130         struct clp_req_hdr hdr;
 131         u32 fh;                         /* function handle */
 132         u16 reserved2;
 133         u8 oc;                          /* operation controls */
 134         u8 ndas;                        /* number of dma spaces */
 135         u64 reserved3;
 136 } __packed;
 137
 138 /* Set PCI function response */
 139 struct clp_rsp_set_pci {
 140         struct clp_rsp_hdr hdr;
 141         u32 fh;                         /* function handle */
 142         u32 reserved3;
 143         u64 reserved4;
 144 } __packed;
 145
 146 /* Combined request/response block structures used by clp insn */
 147 struct clp_req_rsp_list_pci {
 148         struct clp_req_list_pci request;
 149         struct clp_rsp_list_pci response;
 150 } __packed;
 151
 152 struct clp_req_rsp_set_pci {
 153         struct clp_req_set_pci request;
 154         struct clp_rsp_set_pci response;
 155 } __packed;
 156
 157 struct clp_req_rsp_query_pci {
 158         struct clp_req_query_pci request;
 159         struct clp_rsp_query_pci response;
 160 } __packed;
 161
 162 struct clp_req_rsp_query_pci_grp {
 163         struct clp_req_query_pci_grp request;
 164         struct clp_rsp_query_pci_grp response;
 165 } __packed;
 166
 167 #endif