xref: /openbmc/linux/arch/s390/include/asm/pci_clp.h (revision 5d0e4d78)
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 extern bool zpci_unique_uid;
50 
51 /* List PCI functions request */
52 struct clp_req_list_pci {
53 	struct clp_req_hdr hdr;
54 	u64 resume_token;
55 	u64 reserved2;
56 } __packed;
57 
58 /* List PCI functions response */
59 struct clp_rsp_list_pci {
60 	struct clp_rsp_hdr hdr;
61 	u64 resume_token;
62 	u32 reserved2;
63 	u16 max_fn;
64 	u8			: 7;
65 	u8 uid_checking		: 1;
66 	u8 entry_size;
67 	struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES];
68 } __packed;
69 
70 /* Query PCI function request */
71 struct clp_req_query_pci {
72 	struct clp_req_hdr hdr;
73 	u32 fh;				/* function handle */
74 	u32 reserved2;
75 	u64 reserved3;
76 } __packed;
77 
78 /* Query PCI function response */
79 struct clp_rsp_query_pci {
80 	struct clp_rsp_hdr hdr;
81 	u16 vfn;			/* virtual fn number */
82 	u16			:  7;
83 	u16 util_str_avail	:  1;	/* utility string available? */
84 	u16 pfgid		:  8;	/* pci function group id */
85 	u32 fid;			/* pci function id */
86 	u8 bar_size[PCI_BAR_COUNT];
87 	u16 pchid;
88 	__le32 bar[PCI_BAR_COUNT];
89 	u8 pfip[CLP_PFIP_NR_SEGMENTS];	/* pci function internal path */
90 	u32			: 16;
91 	u8 fmb_len;
92 	u8 pft;				/* pci function type */
93 	u64 sdma;			/* start dma as */
94 	u64 edma;			/* end dma as */
95 	u32 reserved[11];
96 	u32 uid;			/* user defined id */
97 	u8 util_str[CLP_UTIL_STR_LEN];	/* utility string */
98 } __packed;
99 
100 /* Query PCI function group request */
101 struct clp_req_query_pci_grp {
102 	struct clp_req_hdr hdr;
103 	u32 reserved2		: 24;
104 	u32 pfgid		:  8;	/* function group id */
105 	u32 reserved3;
106 	u64 reserved4;
107 } __packed;
108 
109 /* Query PCI function group response */
110 struct clp_rsp_query_pci_grp {
111 	struct clp_rsp_hdr hdr;
112 	u16			:  4;
113 	u16 noi			: 12;	/* number of interrupts */
114 	u8 version;
115 	u8			:  6;
116 	u8 frame		:  1;
117 	u8 refresh		:  1;	/* TLB refresh mode */
118 	u16 reserved2;
119 	u16 mui;
120 	u64 reserved3;
121 	u64 dasm;			/* dma address space mask */
122 	u64 msia;			/* MSI address */
123 	u64 reserved4;
124 	u64 reserved5;
125 } __packed;
126 
127 /* Set PCI function request */
128 struct clp_req_set_pci {
129 	struct clp_req_hdr hdr;
130 	u32 fh;				/* function handle */
131 	u16 reserved2;
132 	u8 oc;				/* operation controls */
133 	u8 ndas;			/* number of dma spaces */
134 	u64 reserved3;
135 } __packed;
136 
137 /* Set PCI function response */
138 struct clp_rsp_set_pci {
139 	struct clp_rsp_hdr hdr;
140 	u32 fh;				/* function handle */
141 	u32 reserved3;
142 	u64 reserved4;
143 } __packed;
144 
145 /* Combined request/response block structures used by clp insn */
146 struct clp_req_rsp_list_pci {
147 	struct clp_req_list_pci request;
148 	struct clp_rsp_list_pci response;
149 } __packed;
150 
151 struct clp_req_rsp_set_pci {
152 	struct clp_req_set_pci request;
153 	struct clp_rsp_set_pci response;
154 } __packed;
155 
156 struct clp_req_rsp_query_pci {
157 	struct clp_req_query_pci request;
158 	struct clp_rsp_query_pci response;
159 } __packed;
160 
161 struct clp_req_rsp_query_pci_grp {
162 	struct clp_req_query_pci_grp request;
163 	struct clp_rsp_query_pci_grp response;
164 } __packed;
165 
166 #endif
167