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_SLPC		0x0001
 11#define CLP_LIST_PCI		0x0002
 12#define CLP_QUERY_PCI_FN	0x0003
 13#define CLP_QUERY_PCI_FNGRP	0x0004
 14#define CLP_SET_PCI_FN		0x0005
 15
 16/* PCI function handle list entry */
 17struct clp_fh_list_entry {
 18	u16 device_id;
 19	u16 vendor_id;
 20	u32 config_state :  1;
 21	u32		 : 31;
 22	u32 fid;		/* PCI function id */
 23	u32 fh;			/* PCI function handle */
 24} __packed;
 25
 26#define CLP_RC_SETPCIFN_FH	0x0101	/* Invalid PCI fn handle */
 27#define CLP_RC_SETPCIFN_FHOP	0x0102	/* Fn handle not valid for op */
 28#define CLP_RC_SETPCIFN_DMAAS	0x0103	/* Invalid DMA addr space */
 29#define CLP_RC_SETPCIFN_RES	0x0104	/* Insufficient resources */
 30#define CLP_RC_SETPCIFN_ALRDY	0x0105	/* Fn already in requested state */
 31#define CLP_RC_SETPCIFN_ERR	0x0106	/* Fn in permanent error state */
 32#define CLP_RC_SETPCIFN_RECPND	0x0107	/* Error recovery pending */
 33#define CLP_RC_SETPCIFN_BUSY	0x0108	/* Fn busy */
 34#define CLP_RC_LISTPCI_BADRT	0x010a	/* Resume token not recognized */
 35#define CLP_RC_QUERYPCIFG_PFGID	0x010b	/* Unrecognized PFGID */
 36
 37/* request or response block header length */
 38#define LIST_PCI_HDR_LEN	32
 39
 40/* Number of function handles fitting in response block */
 41#define CLP_FH_LIST_NR_ENTRIES				\
 42	((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN)		\
 43		/ sizeof(struct clp_fh_list_entry))
 44
 45#define CLP_SET_ENABLE_PCI_FN	0	/* Yes, 0 enables it */
 46#define CLP_SET_DISABLE_PCI_FN	1	/* Yes, 1 disables it */
 47#define CLP_SET_ENABLE_MIO	2
 48#define CLP_SET_DISABLE_MIO	3
 49
 50#define CLP_UTIL_STR_LEN	64
 51#define CLP_PFIP_NR_SEGMENTS	4
 52
 53/* PCI function type numbers */
 54#define PCI_FUNC_TYPE_ISM	0x5	/* ISM device */
 55
 56extern bool zpci_unique_uid;
 57
 58struct clp_rsp_slpc_pci {
 59	struct clp_rsp_hdr hdr;
 60	u32 reserved2[4];
 61	u32 lpif[8];
 62	u32 reserved3[4];
 63	u32 vwb		:  1;
 64	u32		:  1;
 65	u32 mio_wb	:  6;
 66	u32		: 24;
 67	u32 reserved5[3];
 68	u32 lpic[8];
 69} __packed;
 70
 71/* List PCI functions request */
 72struct clp_req_list_pci {
 73	struct clp_req_hdr hdr;
 74	u64 resume_token;
 75	u64 reserved2;
 76} __packed;
 77
 78/* List PCI functions response */
 79struct clp_rsp_list_pci {
 80	struct clp_rsp_hdr hdr;
 81	u64 resume_token;
 82	u32 reserved2;
 83	u16 max_fn;
 84	u8			: 7;
 85	u8 uid_checking		: 1;
 86	u8 entry_size;
 87	struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES];
 88} __packed;
 89
 90struct mio_info {
 91	u32 valid : 6;
 92	u32 : 26;
 93	u32 : 32;
 94	struct {
 95		u64 wb;
 96		u64 wt;
 97	} addr[PCI_STD_NUM_BARS];
 98	u32 reserved[6];
 99} __packed;
100
101/* Query PCI function request */
102struct clp_req_query_pci {
103	struct clp_req_hdr hdr;
104	u32 fh;				/* function handle */
105	u32 reserved2;
106	u64 reserved3;
107} __packed;
108
109/* Query PCI function response */
110struct clp_rsp_query_pci {
111	struct clp_rsp_hdr hdr;
112	u16 vfn;			/* virtual fn number */
113	u16			:  2;
114	u16 tid_avail		:  1;
115	u16 rid_avail		:  1;
116	u16 is_physfn		:  1;
117	u16 reserved1		:  1;
118	u16 mio_addr_avail	:  1;
119	u16 util_str_avail	:  1;	/* utility string available? */
120	u16 pfgid		:  8;	/* pci function group id */
121	u32 fid;			/* pci function id */
122	u8 bar_size[PCI_STD_NUM_BARS];
123	u16 pchid;
124	__le32 bar[PCI_STD_NUM_BARS];
125	u8 pfip[CLP_PFIP_NR_SEGMENTS];	/* pci function internal path */
126	u8 fidparm;
127	u8 reserved3		:  4;
128	u8 port			:  4;
129	u8 fmb_len;
130	u8 pft;				/* pci function type */
131	u64 sdma;			/* start dma as */
132	u64 edma;			/* end dma as */
133#define ZPCI_RID_MASK_DEVFN 0x00ff
134	u16 rid;			/* BUS/DEVFN PCI address */
135	u32 reserved0;
136	u16 tid;
137	u32 reserved[9];
138	u32 uid;			/* user defined id */
139	u8 util_str[CLP_UTIL_STR_LEN];	/* utility string */
140	u32 reserved2[16];
141	struct mio_info mio;
142} __packed;
143
144/* Query PCI function group request */
145struct clp_req_query_pci_grp {
146	struct clp_req_hdr hdr;
147	u32 reserved2		: 24;
148	u32 pfgid		:  8;	/* function group id */
149	u32 reserved3;
150	u64 reserved4;
151} __packed;
152
153/* Query PCI function group response */
154struct clp_rsp_query_pci_grp {
155	struct clp_rsp_hdr hdr;
156	u16			:  4;
157	u16 noi			: 12;	/* number of interrupts */
158	u8 version;
159	u8			:  2;
160	u8 rtr			:  1;	/* Relaxed translation requirement */
161	u8			:  3;
162	u8 frame		:  1;
163	u8 refresh		:  1;	/* TLB refresh mode */
164	u16			:  3;
165	u16 maxstbl		: 13;	/* Maximum store block size */
166	u16 mui;
167	u8 dtsm;			/* Supported DT mask */
168	u8 reserved3;
169	u16 maxfaal;
170	u16			:  4;
171	u16 dnoi		: 12;
172	u16 maxcpu;
173	u64 dasm;			/* dma address space mask */
174	u64 msia;			/* MSI address */
175	u64 reserved4;
176	u64 reserved5;
177} __packed;
178
179/* Set PCI function request */
180struct clp_req_set_pci {
181	struct clp_req_hdr hdr;
182	u32 fh;				/* function handle */
183	u16 reserved2;
184	u8 oc;				/* operation controls */
185	u8 ndas;			/* number of dma spaces */
186	u32 reserved3;
187	u32 gisa;			/* GISA designation */
188} __packed;
189
190/* Set PCI function response */
191struct clp_rsp_set_pci {
192	struct clp_rsp_hdr hdr;
193	u32 fh;				/* function handle */
194	u32 reserved1;
195	u64 reserved2;
196	struct mio_info mio;
197} __packed;
198
199/* Combined request/response block structures used by clp insn */
200struct clp_req_rsp_slpc_pci {
201	struct clp_req_slpc request;
202	struct clp_rsp_slpc_pci response;
203} __packed;
204
205struct clp_req_rsp_list_pci {
206	struct clp_req_list_pci request;
207	struct clp_rsp_list_pci response;
208} __packed;
209
210struct clp_req_rsp_set_pci {
211	struct clp_req_set_pci request;
212	struct clp_rsp_set_pci response;
213} __packed;
214
215struct clp_req_rsp_query_pci {
216	struct clp_req_query_pci request;
217	struct clp_rsp_query_pci response;
218} __packed;
219
220struct clp_req_rsp_query_pci_grp {
221	struct clp_req_query_pci_grp request;
222	struct clp_rsp_query_pci_grp response;
223} __packed;
224
225#endif