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 #include <asm/asm-extable.h>
15 #include <asm/cio.h>
16 
17 enum diag_stat_enum {
18 	DIAG_STAT_X008,
19 	DIAG_STAT_X00C,
20 	DIAG_STAT_X010,
21 	DIAG_STAT_X014,
22 	DIAG_STAT_X044,
23 	DIAG_STAT_X064,
24 	DIAG_STAT_X08C,
25 	DIAG_STAT_X09C,
26 	DIAG_STAT_X0DC,
27 	DIAG_STAT_X204,
28 	DIAG_STAT_X210,
29 	DIAG_STAT_X224,
30 	DIAG_STAT_X250,
31 	DIAG_STAT_X258,
32 	DIAG_STAT_X26C,
33 	DIAG_STAT_X288,
34 	DIAG_STAT_X2C4,
35 	DIAG_STAT_X2FC,
36 	DIAG_STAT_X304,
37 	DIAG_STAT_X308,
38 	DIAG_STAT_X318,
39 	DIAG_STAT_X320,
40 	DIAG_STAT_X500,
41 	NR_DIAG_STAT
42 };
43 
44 void diag_stat_inc(enum diag_stat_enum nr);
45 void diag_stat_inc_norecursion(enum diag_stat_enum nr);
46 
47 /*
48  * Diagnose 10: Release page range
49  */
diag10_range(unsigned long start_pfn,unsigned long num_pfn)50 static inline void diag10_range(unsigned long start_pfn, unsigned long num_pfn)
51 {
52 	unsigned long start_addr, end_addr;
53 
54 	start_addr = pfn_to_phys(start_pfn);
55 	end_addr = pfn_to_phys(start_pfn + num_pfn - 1);
56 
57 	diag_stat_inc(DIAG_STAT_X010);
58 	asm volatile(
59 		"0:	diag	%0,%1,0x10\n"
60 		"1:	nopr	%%r7\n"
61 		EX_TABLE(0b, 1b)
62 		EX_TABLE(1b, 1b)
63 		: : "a" (start_addr), "a" (end_addr));
64 }
65 
66 /*
67  * Diagnose 14: Input spool file manipulation
68  */
69 extern int diag14(unsigned long rx, unsigned long ry1, unsigned long subcode);
70 
71 /*
72  * Diagnose 210: Get information about a virtual device
73  */
74 struct diag210 {
75 	u16 vrdcdvno;	/* device number (input) */
76 	u16 vrdclen;	/* data block length (input) */
77 	u8 vrdcvcla;	/* virtual device class (output) */
78 	u8 vrdcvtyp;	/* virtual device type (output) */
79 	u8 vrdcvsta;	/* virtual device status (output) */
80 	u8 vrdcvfla;	/* virtual device flags (output) */
81 	u8 vrdcrccl;	/* real device class (output) */
82 	u8 vrdccrty;	/* real device type (output) */
83 	u8 vrdccrmd;	/* real device model (output) */
84 	u8 vrdccrft;	/* real device feature (output) */
85 } __packed __aligned(4);
86 
87 extern int diag210(struct diag210 *addr);
88 
89 struct diag8c {
90 	u8 flags;
91 	u8 num_partitions;
92 	u16 width;
93 	u16 height;
94 	u8 data[];
95 } __packed __aligned(4);
96 
97 extern int diag8c(struct diag8c *out, struct ccw_dev_id *devno);
98 
99 /* bit is set in flags, when physical cpu info is included in diag 204 data */
100 #define DIAG204_LPAR_PHYS_FLG 0x80
101 #define DIAG204_LPAR_NAME_LEN 8		/* lpar name len in diag 204 data */
102 #define DIAG204_CPU_NAME_LEN 16		/* type name len of cpus in diag224 name table */
103 
104 /* diag 204 subcodes */
105 enum diag204_sc {
106 	DIAG204_SUBC_STIB4 = 4,
107 	DIAG204_SUBC_RSI = 5,
108 	DIAG204_SUBC_STIB6 = 6,
109 	DIAG204_SUBC_STIB7 = 7
110 };
111 
112 #define DIAG204_SUBCODE_MASK 0xffff
113 
114 /* The two available diag 204 data formats */
115 enum diag204_format {
116 	DIAG204_INFO_SIMPLE = 0,
117 	DIAG204_INFO_EXT = 0x00010000
118 };
119 
120 enum diag204_cpu_flags {
121 	DIAG204_CPU_ONLINE = 0x20,
122 	DIAG204_CPU_CAPPED = 0x40,
123 };
124 
125 struct diag204_info_blk_hdr {
126 	__u8  npar;
127 	__u8  flags;
128 	__u16 tslice;
129 	__u16 phys_cpus;
130 	__u16 this_part;
131 	__u64 curtod;
132 } __packed;
133 
134 struct diag204_x_info_blk_hdr {
135 	__u8  npar;
136 	__u8  flags;
137 	__u16 tslice;
138 	__u16 phys_cpus;
139 	__u16 this_part;
140 	__u64 curtod1;
141 	__u64 curtod2;
142 	char reserved[40];
143 } __packed;
144 
145 struct diag204_part_hdr {
146 	__u8 pn;
147 	__u8 cpus;
148 	char reserved[6];
149 	char part_name[DIAG204_LPAR_NAME_LEN];
150 } __packed;
151 
152 struct diag204_x_part_hdr {
153 	__u8  pn;
154 	__u8  cpus;
155 	__u8  rcpus;
156 	__u8  pflag;
157 	__u32 mlu;
158 	char  part_name[DIAG204_LPAR_NAME_LEN];
159 	char  lpc_name[8];
160 	char  os_name[8];
161 	__u64 online_cs;
162 	__u64 online_es;
163 	__u8  upid;
164 	__u8  reserved:3;
165 	__u8  mtid:5;
166 	char  reserved1[2];
167 	__u32 group_mlu;
168 	char  group_name[8];
169 	char  hardware_group_name[8];
170 	char  reserved2[24];
171 } __packed;
172 
173 struct diag204_cpu_info {
174 	__u16 cpu_addr;
175 	char  reserved1[2];
176 	__u8  ctidx;
177 	__u8  cflag;
178 	__u16 weight;
179 	__u64 acc_time;
180 	__u64 lp_time;
181 } __packed;
182 
183 struct diag204_x_cpu_info {
184 	__u16 cpu_addr;
185 	char  reserved1[2];
186 	__u8  ctidx;
187 	__u8  cflag;
188 	__u16 weight;
189 	__u64 acc_time;
190 	__u64 lp_time;
191 	__u16 min_weight;
192 	__u16 cur_weight;
193 	__u16 max_weight;
194 	char  reseved2[2];
195 	__u64 online_time;
196 	__u64 wait_time;
197 	__u32 pma_weight;
198 	__u32 polar_weight;
199 	__u32 cpu_type_cap;
200 	__u32 group_cpu_type_cap;
201 	char  reserved3[32];
202 } __packed;
203 
204 struct diag204_phys_hdr {
205 	char reserved1[1];
206 	__u8 cpus;
207 	char reserved2[6];
208 	char mgm_name[8];
209 } __packed;
210 
211 struct diag204_x_phys_hdr {
212 	char reserved1[1];
213 	__u8 cpus;
214 	char reserved2[6];
215 	char mgm_name[8];
216 	char reserved3[80];
217 } __packed;
218 
219 struct diag204_phys_cpu {
220 	__u16 cpu_addr;
221 	char  reserved1[2];
222 	__u8  ctidx;
223 	char  reserved2[3];
224 	__u64 mgm_time;
225 	char  reserved3[8];
226 } __packed;
227 
228 struct diag204_x_phys_cpu {
229 	__u16 cpu_addr;
230 	char  reserved1[2];
231 	__u8  ctidx;
232 	char  reserved2[1];
233 	__u16 weight;
234 	__u64 mgm_time;
235 	char  reserved3[80];
236 } __packed;
237 
238 struct diag204_x_part_block {
239 	struct diag204_x_part_hdr hdr;
240 	struct diag204_x_cpu_info cpus[];
241 } __packed;
242 
243 struct diag204_x_phys_block {
244 	struct diag204_x_phys_hdr hdr;
245 	struct diag204_x_phys_cpu cpus[];
246 } __packed;
247 
248 enum diag26c_sc {
249 	DIAG26C_PORT_VNIC    = 0x00000024,
250 	DIAG26C_MAC_SERVICES = 0x00000030
251 };
252 
253 enum diag26c_version {
254 	DIAG26C_VERSION2	 = 0x00000002,	/* z/VM 5.4.0 */
255 	DIAG26C_VERSION6_VM65918 = 0x00020006	/* z/VM 6.4.0 + VM65918 */
256 };
257 
258 #define DIAG26C_VNIC_INFO	0x0002
259 struct diag26c_vnic_req {
260 	u32	resp_buf_len;
261 	u32	resp_version;
262 	u16	req_format;
263 	u16	vlan_id;
264 	u64	sys_name;
265 	u8	res[2];
266 	u16	devno;
267 } __packed __aligned(8);
268 
269 #define VNIC_INFO_PROT_L3	1
270 #define VNIC_INFO_PROT_L2	2
271 /* Note: this is the bare minimum, use it for uninitialized VNICs only. */
272 struct diag26c_vnic_resp {
273 	u32	version;
274 	u32	entry_cnt;
275 	/* VNIC info: */
276 	u32	next_entry;
277 	u64	owner;
278 	u16	devno;
279 	u8	status;
280 	u8	type;
281 	u64	lan_owner;
282 	u64	lan_name;
283 	u64	port_name;
284 	u8	port_type;
285 	u8	ext_status:6;
286 	u8	protocol:2;
287 	u16	base_devno;
288 	u32	port_num;
289 	u32	ifindex;
290 	u32	maxinfo;
291 	u32	dev_count;
292 	/* 3x device info: */
293 	u8	dev_info1[28];
294 	u8	dev_info2[28];
295 	u8	dev_info3[28];
296 } __packed __aligned(8);
297 
298 #define DIAG26C_GET_MAC	0x0000
299 struct diag26c_mac_req {
300 	u32	resp_buf_len;
301 	u32	resp_version;
302 	u16	op_code;
303 	u16	devno;
304 	u8	res[4];
305 };
306 
307 struct diag26c_mac_resp {
308 	u32	version;
309 	u8	mac[ETH_ALEN];
310 	u8	res[2];
311 } __aligned(8);
312 
313 #define CPNC_LINUX		0x4
314 union diag318_info {
315 	unsigned long val;
316 	struct {
317 		unsigned long cpnc : 8;
318 		unsigned long cpvc : 56;
319 	};
320 };
321 
322 int diag204(unsigned long subcode, unsigned long size, void *addr);
323 int diag224(void *ptr);
324 int diag26c(void *req, void *resp, enum diag26c_sc subcode);
325 
326 struct hypfs_diag0c_entry;
327 
328 /*
329  * This structure must contain only pointers/references into
330  * the AMODE31 text section.
331  */
332 struct diag_ops {
333 	int (*diag210)(struct diag210 *addr);
334 	int (*diag26c)(void *req, void *resp, enum diag26c_sc subcode);
335 	int (*diag14)(unsigned long rx, unsigned long ry1, unsigned long subcode);
336 	int (*diag8c)(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
337 	void (*diag0c)(struct hypfs_diag0c_entry *entry);
338 	void (*diag308_reset)(void);
339 };
340 
341 extern struct diag_ops diag_amode31_ops;
342 extern struct diag210 *__diag210_tmp_amode31;
343 
344 int _diag210_amode31(struct diag210 *addr);
345 int _diag26c_amode31(void *req, void *resp, enum diag26c_sc subcode);
346 int _diag14_amode31(unsigned long rx, unsigned long ry1, unsigned long subcode);
347 void _diag0c_amode31(struct hypfs_diag0c_entry *entry);
348 void _diag308_reset_amode31(void);
349 int _diag8c_amode31(struct diag8c *addr, struct ccw_dev_id *devno, size_t len);
350 
351 #endif /* _ASM_S390_DIAG_H */
352