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