xref: /linux/arch/s390/include/asm/diag.h (revision 37744feebc086908fd89760650f458ab19071750)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * s390 diagnose functions
4  *
5  * Copyright IBM Corp. 2007
6  * Author(s): Michael Holzheu <holzheu@de.ibm.com>
7  */
8 
9 #ifndef _ASM_S390_DIAG_H
10 #define _ASM_S390_DIAG_H
11 
12 #include <linux/if_ether.h>
13 #include <linux/percpu.h>
14 
15 enum diag_stat_enum {
16 	DIAG_STAT_X008,
17 	DIAG_STAT_X00C,
18 	DIAG_STAT_X010,
19 	DIAG_STAT_X014,
20 	DIAG_STAT_X044,
21 	DIAG_STAT_X064,
22 	DIAG_STAT_X09C,
23 	DIAG_STAT_X0DC,
24 	DIAG_STAT_X204,
25 	DIAG_STAT_X210,
26 	DIAG_STAT_X224,
27 	DIAG_STAT_X250,
28 	DIAG_STAT_X258,
29 	DIAG_STAT_X26C,
30 	DIAG_STAT_X288,
31 	DIAG_STAT_X2C4,
32 	DIAG_STAT_X2FC,
33 	DIAG_STAT_X304,
34 	DIAG_STAT_X308,
35 	DIAG_STAT_X318,
36 	DIAG_STAT_X500,
37 	NR_DIAG_STAT
38 };
39 
40 void diag_stat_inc(enum diag_stat_enum nr);
41 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
42 
43 /*
44  * Diagnose 10: Release page range
45  */
46 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
47 {
48 	unsigned long start_addr, end_addr;
49 
50 	start_addr = start_pfn << PAGE_SHIFT;
51 	end_addr = (start_pfn + num_pfn - 1) << PAGE_SHIFT;
52 
53 	diag_stat_inc(DIAG_STAT_X010);
54 	asm volatile(
55 		"0:	diag	%0,%1,0x10\n"
56 		"1:	nopr	%%r7\n"
57 		EX_TABLE(0b, 1b)
58 		EX_TABLE(1b, 1b)
59 		: : "a" (start_addr), "a" (end_addr));
60 }
61 
62 /*
63  * Diagnose 14: Input spool file manipulation
64  */
65 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
66 
67 /*
68  * Diagnose 210: Get information about a virtual device
69  */
70 struct diag210 {
71 	u16 vrdcdvno;	/* device number (input) */
72 	u16 vrdclen;	/* data block length (input) */
73 	u8 vrdcvcla;	/* virtual device class (output) */
74 	u8 vrdcvtyp;	/* virtual device type (output) */
75 	u8 vrdcvsta;	/* virtual device status (output) */
76 	u8 vrdcvfla;	/* virtual device flags (output) */
77 	u8 vrdcrccl;	/* real device class (output) */
78 	u8 vrdccrty;	/* real device type (output) */
79 	u8 vrdccrmd;	/* real device model (output) */
80 	u8 vrdccrft;	/* real device feature (output) */
81 } __attribute__((packed, aligned(4)));
82 
83 extern int diag210(struct diag210 *addr);
84 
85 /* bit is set in flags, when physical cpu info is included in diag 204 data */
86 #define DIAG204_LPAR_PHYS_FLG 0x80
87 #define DIAG204_LPAR_NAME_LEN 8		/* lpar name len in diag 204 data */
88 #define DIAG204_CPU_NAME_LEN 16		/* type name len of cpus in diag224 name table */
89 
90 /* diag 204 subcodes */
91 enum diag204_sc {
92 	DIAG204_SUBC_STIB4 = 4,
93 	DIAG204_SUBC_RSI = 5,
94 	DIAG204_SUBC_STIB6 = 6,
95 	DIAG204_SUBC_STIB7 = 7
96 };
97 
98 /* The two available diag 204 data formats */
99 enum diag204_format {
100 	DIAG204_INFO_SIMPLE = 0,
101 	DIAG204_INFO_EXT = 0x00010000
102 };
103 
104 enum diag204_cpu_flags {
105 	DIAG204_CPU_ONLINE = 0x20,
106 	DIAG204_CPU_CAPPED = 0x40,
107 };
108 
109 struct diag204_info_blk_hdr {
110 	__u8  npar;
111 	__u8  flags;
112 	__u16 tslice;
113 	__u16 phys_cpus;
114 	__u16 this_part;
115 	__u64 curtod;
116 } __packed;
117 
118 struct diag204_x_info_blk_hdr {
119 	__u8  npar;
120 	__u8  flags;
121 	__u16 tslice;
122 	__u16 phys_cpus;
123 	__u16 this_part;
124 	__u64 curtod1;
125 	__u64 curtod2;
126 	char reserved[40];
127 } __packed;
128 
129 struct diag204_part_hdr {
130 	__u8 pn;
131 	__u8 cpus;
132 	char reserved[6];
133 	char part_name[DIAG204_LPAR_NAME_LEN];
134 } __packed;
135 
136 struct diag204_x_part_hdr {
137 	__u8  pn;
138 	__u8  cpus;
139 	__u8  rcpus;
140 	__u8  pflag;
141 	__u32 mlu;
142 	char  part_name[DIAG204_LPAR_NAME_LEN];
143 	char  lpc_name[8];
144 	char  os_name[8];
145 	__u64 online_cs;
146 	__u64 online_es;
147 	__u8  upid;
148 	__u8  reserved:3;
149 	__u8  mtid:5;
150 	char  reserved1[2];
151 	__u32 group_mlu;
152 	char  group_name[8];
153 	char  hardware_group_name[8];
154 	char  reserved2[24];
155 } __packed;
156 
157 struct diag204_cpu_info {
158 	__u16 cpu_addr;
159 	char  reserved1[2];
160 	__u8  ctidx;
161 	__u8  cflag;
162 	__u16 weight;
163 	__u64 acc_time;
164 	__u64 lp_time;
165 } __packed;
166 
167 struct diag204_x_cpu_info {
168 	__u16 cpu_addr;
169 	char  reserved1[2];
170 	__u8  ctidx;
171 	__u8  cflag;
172 	__u16 weight;
173 	__u64 acc_time;
174 	__u64 lp_time;
175 	__u16 min_weight;
176 	__u16 cur_weight;
177 	__u16 max_weight;
178 	char  reseved2[2];
179 	__u64 online_time;
180 	__u64 wait_time;
181 	__u32 pma_weight;
182 	__u32 polar_weight;
183 	__u32 cpu_type_cap;
184 	__u32 group_cpu_type_cap;
185 	char  reserved3[32];
186 } __packed;
187 
188 struct diag204_phys_hdr {
189 	char reserved1[1];
190 	__u8 cpus;
191 	char reserved2[6];
192 	char mgm_name[8];
193 } __packed;
194 
195 struct diag204_x_phys_hdr {
196 	char reserved1[1];
197 	__u8 cpus;
198 	char reserved2[6];
199 	char mgm_name[8];
200 	char reserved3[80];
201 } __packed;
202 
203 struct diag204_phys_cpu {
204 	__u16 cpu_addr;
205 	char  reserved1[2];
206 	__u8  ctidx;
207 	char  reserved2[3];
208 	__u64 mgm_time;
209 	char  reserved3[8];
210 } __packed;
211 
212 struct diag204_x_phys_cpu {
213 	__u16 cpu_addr;
214 	char  reserved1[2];
215 	__u8  ctidx;
216 	char  reserved2[1];
217 	__u16 weight;
218 	__u64 mgm_time;
219 	char  reserved3[80];
220 } __packed;
221 
222 struct diag204_x_part_block {
223 	struct diag204_x_part_hdr hdr;
224 	struct diag204_x_cpu_info cpus[];
225 } __packed;
226 
227 struct diag204_x_phys_block {
228 	struct diag204_x_phys_hdr hdr;
229 	struct diag204_x_phys_cpu cpus[];
230 } __packed;
231 
232 enum diag26c_sc {
233 	DIAG26C_PORT_VNIC    = 0x00000024,
234 	DIAG26C_MAC_SERVICES = 0x00000030
235 };
236 
237 enum diag26c_version {
238 	DIAG26C_VERSION2	 = 0x00000002,	/* z/VM 5.4.0 */
239 	DIAG26C_VERSION6_VM65918 = 0x00020006	/* z/VM 6.4.0 + VM65918 */
240 };
241 
242 #define DIAG26C_VNIC_INFO	0x0002
243 struct diag26c_vnic_req {
244 	u32	resp_buf_len;
245 	u32	resp_version;
246 	u16	req_format;
247 	u16	vlan_id;
248 	u64	sys_name;
249 	u8	res[2];
250 	u16	devno;
251 } __packed __aligned(8);
252 
253 #define VNIC_INFO_PROT_L3	1
254 #define VNIC_INFO_PROT_L2	2
255 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */
256 struct diag26c_vnic_resp {
257 	u32	version;
258 	u32	entry_cnt;
259 	/* VNIC info: */
260 	u32	next_entry;
261 	u64	owner;
262 	u16	devno;
263 	u8	status;
264 	u8	type;
265 	u64	lan_owner;
266 	u64	lan_name;
267 	u64	port_name;
268 	u8	port_type;
269 	u8	ext_status:6;
270 	u8	protocol:2;
271 	u16	base_devno;
272 	u32	port_num;
273 	u32	ifindex;
274 	u32	maxinfo;
275 	u32	dev_count;
276 	/* 3x device info: */
277 	u8	dev_info1[28];
278 	u8	dev_info2[28];
279 	u8	dev_info3[28];
280 } __packed __aligned(8);
281 
282 #define DIAG26C_GET_MAC	0x0000
283 struct diag26c_mac_req {
284 	u32	resp_buf_len;
285 	u32	resp_version;
286 	u16	op_code;
287 	u16	devno;
288 	u8	res[4];
289 };
290 
291 struct diag26c_mac_resp {
292 	u32	version;
293 	u8	mac[ETH_ALEN];
294 	u8	res[2];
295 } __aligned(8);
296 
297 #define CPNC_LINUX		0x4
298 union diag318_info {
299 	unsigned long val;
300 	struct {
301 		unsigned int cpnc : 8;
302 		unsigned int cpvc_linux : 24;
303 		unsigned char cpvc_distro[3];
304 		unsigned char zero;
305 	};
306 };
307 
308 int diag204(unsigned long subcode, unsigned long size, void *addr);
309 int diag224(void *ptr);
310 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
311 
312 struct hypfs_diag0c_entry;
313 
314 struct diag_ops {
315 	int (*diag210)(struct diag210 *addr);
316 	int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
317 	int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
318 	void (*diag0c)(struct hypfs_diag0c_entry *entry);
319 	void (*diag308_reset)(void);
320 };
321 
322 extern struct diag_ops diag_dma_ops;
323 extern struct diag210 *__diag210_tmp_dma;
324 #endif /* _ASM_S390_DIAG_H */
325