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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_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			:  3;
114	u16 rid_avail		:  1;
115	u16 is_physfn		:  1;
116	u16 reserved1		:  1;
117	u16 mio_addr_avail	:  1;
118	u16 util_str_avail	:  1;	/* utility string available? */
119	u16 pfgid		:  8;	/* pci function group id */
120	u32 fid;			/* pci function id */
121	u8 bar_size[PCI_STD_NUM_BARS];
122	u16 pchid;
123	__le32 bar[PCI_STD_NUM_BARS];
124	u8 pfip[CLP_PFIP_NR_SEGMENTS];	/* pci function internal path */
125	u16			: 12;
126	u16 port		:  4;
127	u8 fmb_len;
128	u8 pft;				/* pci function type */
129	u64 sdma;			/* start dma as */
130	u64 edma;			/* end dma as */
131#define ZPCI_RID_MASK_DEVFN 0x00ff
132	u16 rid;			/* BUS/DEVFN PCI address */
133	u16 reserved0;
134	u32 reserved[10];
135	u32 uid;			/* user defined id */
136	u8 util_str[CLP_UTIL_STR_LEN];	/* utility string */
137	u32 reserved2[16];
138	struct mio_info mio;
139} __packed;
140
141/* Query PCI function group request */
142struct clp_req_query_pci_grp {
143	struct clp_req_hdr hdr;
144	u32 reserved2		: 24;
145	u32 pfgid		:  8;	/* function group id */
146	u32 reserved3;
147	u64 reserved4;
148} __packed;
149
150/* Query PCI function group response */
151struct clp_rsp_query_pci_grp {
152	struct clp_rsp_hdr hdr;
153	u16			:  4;
154	u16 noi			: 12;	/* number of interrupts */
155	u8 version;
156	u8			:  6;
157	u8 frame		:  1;
158	u8 refresh		:  1;	/* TLB refresh mode */
159	u16			:  3;
160	u16 maxstbl		: 13;	/* Maximum store block size */
161	u16 mui;
162	u8 dtsm;			/* Supported DT mask */
163	u8 reserved3;
164	u16 maxfaal;
165	u16			:  4;
166	u16 dnoi		: 12;
167	u16 maxcpu;
168	u64 dasm;			/* dma address space mask */
169	u64 msia;			/* MSI address */
170	u64 reserved4;
171	u64 reserved5;
172} __packed;
173
174/* Set PCI function request */
175struct clp_req_set_pci {
176	struct clp_req_hdr hdr;
177	u32 fh;				/* function handle */
178	u16 reserved2;
179	u8 oc;				/* operation controls */
180	u8 ndas;			/* number of dma spaces */
181	u32 reserved3;
182	u32 gisa;			/* GISA designation */
183} __packed;
184
185/* Set PCI function response */
186struct clp_rsp_set_pci {
187	struct clp_rsp_hdr hdr;
188	u32 fh;				/* function handle */
189	u32 reserved1;
190	u64 reserved2;
191	struct mio_info mio;
192} __packed;
193
194/* Combined request/response block structures used by clp insn */
195struct clp_req_rsp_slpc_pci {
196	struct clp_req_slpc request;
197	struct clp_rsp_slpc_pci response;
198} __packed;
199
200struct clp_req_rsp_list_pci {
201	struct clp_req_list_pci request;
202	struct clp_rsp_list_pci response;
203} __packed;
204
205struct clp_req_rsp_set_pci {
206	struct clp_req_set_pci request;
207	struct clp_rsp_set_pci response;
208} __packed;
209
210struct clp_req_rsp_query_pci {
211	struct clp_req_query_pci request;
212	struct clp_rsp_query_pci response;
213} __packed;
214
215struct clp_req_rsp_query_pci_grp {
216	struct clp_req_query_pci_grp request;
217	struct clp_rsp_query_pci_grp response;
218} __packed;
219
220#endif