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Linux/arch/s390/include/asm/pci_clp.h

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  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
168 

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