treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / arch / s390 / include / asm / pci_clp.h
blobbd2cb4ea7d93d3081e7b3486e5b79e3f9f7b76a2
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_S390_PCI_CLP_H
3 #define _ASM_S390_PCI_CLP_H
5 #include <asm/clp.h>
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
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;
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 */
36 /* request or response block header length */
37 #define LIST_PCI_HDR_LEN 32
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))
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 #define CLP_SET_ENABLE_MIO 2
47 #define CLP_SET_DISABLE_MIO 3
49 #define CLP_UTIL_STR_LEN 64
50 #define CLP_PFIP_NR_SEGMENTS 4
52 extern bool zpci_unique_uid;
54 /* List PCI functions request */
55 struct clp_req_list_pci {
56 struct clp_req_hdr hdr;
57 u64 resume_token;
58 u64 reserved2;
59 } __packed;
61 /* List PCI functions response */
62 struct clp_rsp_list_pci {
63 struct clp_rsp_hdr hdr;
64 u64 resume_token;
65 u32 reserved2;
66 u16 max_fn;
67 u8 : 7;
68 u8 uid_checking : 1;
69 u8 entry_size;
70 struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES];
71 } __packed;
73 struct mio_info {
74 u32 valid : 6;
75 u32 : 26;
76 u32 : 32;
77 struct {
78 u64 wb;
79 u64 wt;
80 } addr[PCI_STD_NUM_BARS];
81 u32 reserved[6];
82 } __packed;
84 /* Query PCI function request */
85 struct clp_req_query_pci {
86 struct clp_req_hdr hdr;
87 u32 fh; /* function handle */
88 u32 reserved2;
89 u64 reserved3;
90 } __packed;
92 /* Query PCI function response */
93 struct clp_rsp_query_pci {
94 struct clp_rsp_hdr hdr;
95 u16 vfn; /* virtual fn number */
96 u16 : 6;
97 u16 mio_addr_avail : 1;
98 u16 util_str_avail : 1; /* utility string available? */
99 u16 pfgid : 8; /* pci function group id */
100 u32 fid; /* pci function id */
101 u8 bar_size[PCI_STD_NUM_BARS];
102 u16 pchid;
103 __le32 bar[PCI_STD_NUM_BARS];
104 u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
105 u32 : 16;
106 u8 fmb_len;
107 u8 pft; /* pci function type */
108 u64 sdma; /* start dma as */
109 u64 edma; /* end dma as */
110 u32 reserved[11];
111 u32 uid; /* user defined id */
112 u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */
113 u32 reserved2[16];
114 struct mio_info mio;
115 } __packed;
117 /* Query PCI function group request */
118 struct clp_req_query_pci_grp {
119 struct clp_req_hdr hdr;
120 u32 reserved2 : 24;
121 u32 pfgid : 8; /* function group id */
122 u32 reserved3;
123 u64 reserved4;
124 } __packed;
126 /* Query PCI function group response */
127 struct clp_rsp_query_pci_grp {
128 struct clp_rsp_hdr hdr;
129 u16 : 4;
130 u16 noi : 12; /* number of interrupts */
131 u8 version;
132 u8 : 6;
133 u8 frame : 1;
134 u8 refresh : 1; /* TLB refresh mode */
135 u16 reserved2;
136 u16 mui;
137 u16 : 16;
138 u16 maxfaal;
139 u16 : 4;
140 u16 dnoi : 12;
141 u16 maxcpu;
142 u64 dasm; /* dma address space mask */
143 u64 msia; /* MSI address */
144 u64 reserved4;
145 u64 reserved5;
146 } __packed;
148 /* Set PCI function request */
149 struct clp_req_set_pci {
150 struct clp_req_hdr hdr;
151 u32 fh; /* function handle */
152 u16 reserved2;
153 u8 oc; /* operation controls */
154 u8 ndas; /* number of dma spaces */
155 u64 reserved3;
156 } __packed;
158 /* Set PCI function response */
159 struct clp_rsp_set_pci {
160 struct clp_rsp_hdr hdr;
161 u32 fh; /* function handle */
162 u32 reserved1;
163 u64 reserved2;
164 struct mio_info mio;
165 } __packed;
167 /* Combined request/response block structures used by clp insn */
168 struct clp_req_rsp_list_pci {
169 struct clp_req_list_pci request;
170 struct clp_rsp_list_pci response;
171 } __packed;
173 struct clp_req_rsp_set_pci {
174 struct clp_req_set_pci request;
175 struct clp_rsp_set_pci response;
176 } __packed;
178 struct clp_req_rsp_query_pci {
179 struct clp_req_query_pci request;
180 struct clp_rsp_query_pci response;
181 } __packed;
183 struct clp_req_rsp_query_pci_grp {
184 struct clp_req_query_pci_grp request;
185 struct clp_rsp_query_pci_grp response;
186 } __packed;
188 #endif