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hc
2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/drivers/s390/block/dasd_eckd.h
....@@ -50,14 +50,24 @@
5050 #define DASD_ECKD_CCW_PFX_READ		 0xEA
5151 #define DASD_ECKD_CCW_RSCK		 0xF9
5252 #define DASD_ECKD_CCW_RCD		 0xFA
53
+#define DASD_ECKD_CCW_DSO		 0xF7
54
+
55
+/* Define Subssystem Function / Orders */
56
+#define DSO_ORDER_RAS			 0x81
57
+
58
+/*
59
+ * Perform Subsystem Function / Orders
60
+ */
61
+#define PSF_ORDER_PRSSD			 0x18
62
+#define PSF_ORDER_CUIR_RESPONSE		 0x1A
63
+#define PSF_ORDER_SSC			 0x1D
5364 
5465 /*
5566  * Perform Subsystem Function / Sub-Orders
5667  */
57
-#define PSF_ORDER_PRSSD			 0x18
58
-#define PSF_ORDER_CUIR_RESPONSE		 0x1A
59
-#define PSF_SUBORDER_QHA		 0x1C
60
-#define PSF_ORDER_SSC			 0x1D
68
+#define PSF_SUBORDER_QHA		 0x1C /* Query Host Access */
69
+#define PSF_SUBORDER_VSQ		 0x52 /* Volume Storage Query */
70
+#define PSF_SUBORDER_LCQ		 0x53 /* Logical Configuration Query */
6171 
6272 /*
6373  * CUIR response condition codes
....@@ -80,10 +90,22 @@
8090 #define CUIR_RESUME			 0x02
8191 
8292 /*
93
+ * Out-of-space (OOS) Codes
94
+ */
95
+#define REPO_WARN			 0x01
96
+#define REPO_EXHAUST			 0x02
97
+#define POOL_WARN			 0x03
98
+#define POOL_EXHAUST			 0x04
99
+#define REPO_RELIEVE			 0x05
100
+#define POOL_RELIEVE			 0x06
101
+
102
+/*
83103  * attention message definitions
84104  */
85105 #define ATTENTION_LENGTH_CUIR		 0x0e
86106 #define ATTENTION_FORMAT_CUIR		 0x01
107
+#define ATTENTION_LENGTH_OOS		 0x10
108
+#define ATTENTION_FORMAT_OOS		 0x06
87109 
88110 #define DASD_ECKD_PG_GROUPED		 0x10
89111 
....@@ -98,6 +120,12 @@
98120 
99121 #define DASD_ECKD_PATH_THRHLD		 256
100122 #define DASD_ECKD_PATH_INTERVAL		 300
123
+
124
+/*
125
+ * Maximum number of blocks to be chained
126
+ */
127
+#define DASD_ECKD_MAX_BLOCKS		 190
128
+#define DASD_ECKD_MAX_BLOCKS_RAW	 256
101129 
102130 /*****************************************************************************
103131  * SECTION: Type Definitions
....@@ -116,33 +144,10 @@
116144 	__u16 head;
117145 } __attribute__ ((packed));
118146 
119
-struct chs_t {
120
-	__u16 cyl;
121
-	__u16 head;
122
-	__u32 sector;
123
-} __attribute__ ((packed));
124
-
125147 struct chr_t {
126148 	__u16 cyl;
127149 	__u16 head;
128150 	__u8 record;
129
-} __attribute__ ((packed));
130
-
131
-struct geom_t {
132
-	__u16 cyl;
133
-	__u16 head;
134
-	__u32 sector;
135
-} __attribute__ ((packed));
136
-
137
-struct eckd_home {
138
-	__u8 skip_control[14];
139
-	__u16 cell_number;
140
-	__u8 physical_addr[3];
141
-	__u8 flag;
142
-	struct ch_t track_addr;
143
-	__u8 reserved;
144
-	__u8 key_length;
145
-	__u8 reserved2[2];
146151 } __attribute__ ((packed));
147152 
148153 struct DE_eckd_data {
....@@ -215,7 +220,7 @@
215220 	__u8 imbedded_count;
216221 	__u8 extended_operation;
217222 	__u16 extended_parameter_length;
218
-	__u8 extended_parameter[0];
223
+	__u8 extended_parameter[];
219224 } __attribute__ ((packed));
220225 
221226 /* Prefix data for format 0x00 and 0x01 */
....@@ -387,6 +392,86 @@
387392 	char messages[4087];
388393 } __packed;
389394 
395
+/*
396
+ * Read Subsystem Data - Volume Storage Query
397
+ */
398
+struct dasd_rssd_vsq {
399
+	struct {
400
+		__u8 tse:1;
401
+		__u8 space_not_available:1;
402
+		__u8 ese:1;
403
+		__u8 unused:5;
404
+	} __packed vol_info;
405
+	__u8 unused1;
406
+	__u16 extent_pool_id;
407
+	__u8 warn_cap_limit;
408
+	__u8 warn_cap_guaranteed;
409
+	__u16 unused2;
410
+	__u32 limit_capacity;
411
+	__u32 guaranteed_capacity;
412
+	__u32 space_allocated;
413
+	__u32 space_configured;
414
+	__u32 logical_capacity;
415
+} __packed;
416
+
417
+/*
418
+ * Extent Pool Summary
419
+ */
420
+struct dasd_ext_pool_sum {
421
+	__u16 pool_id;
422
+	__u8 repo_warn_thrshld;
423
+	__u8 warn_thrshld;
424
+	struct {
425
+		__u8 type:1;			/* 0 - CKD / 1 - FB */
426
+		__u8 track_space_efficient:1;
427
+		__u8 extent_space_efficient:1;
428
+		__u8 standard_volume:1;
429
+		__u8 extent_size_valid:1;
430
+		__u8 capacity_at_warnlevel:1;
431
+		__u8 pool_oos:1;
432
+		__u8 unused0:1;
433
+		__u8 unused1;
434
+	} __packed flags;
435
+	struct {
436
+		__u8 reserved0:1;
437
+		__u8 size_1G:1;
438
+		__u8 reserved1:5;
439
+		__u8 size_16M:1;
440
+	} __packed extent_size;
441
+	__u8 unused;
442
+} __packed;
443
+
444
+/*
445
+ * Read Subsystem Data-Response - Logical Configuration Query - Header
446
+ */
447
+struct dasd_rssd_lcq {
448
+	__u16 data_length;		/* Length of data returned */
449
+	__u16 pool_count;		/* Count of extent pools returned - Max: 448 */
450
+	struct {
451
+		__u8 pool_info_valid:1;	/* Detailed Information valid */
452
+		__u8 pool_id_volume:1;
453
+		__u8 pool_id_cec:1;
454
+		__u8 unused0:5;
455
+		__u8 unused1;
456
+	} __packed header_flags;
457
+	char sfi_type[6];		/* Storage Facility Image Type (EBCDIC) */
458
+	char sfi_model[3];		/* Storage Facility Image Model (EBCDIC) */
459
+	__u8 sfi_seq_num[10];		/* Storage Facility Image Sequence Number */
460
+	__u8 reserved[7];
461
+	struct dasd_ext_pool_sum ext_pool_sum[448];
462
+} __packed;
463
+
464
+struct dasd_oos_message {
465
+	__u16 length;
466
+	__u8 format;
467
+	__u8 code;
468
+	__u8 percentage_empty;
469
+	__u8 reserved;
470
+	__u16 ext_pool_id;
471
+	__u16 token;
472
+	__u8 unused[6];
473
+} __packed;
474
+
390475 struct dasd_cuir_message {
391476 	__u16 length;
392477 	__u8 format;
....@@ -460,6 +545,42 @@
460545 	unsigned char suborder;
461546 	unsigned char reserved[59];
462547 } __attribute__((packed));
548
+
549
+/* Maximum number of extents for a single Release Allocated Space command */
550
+#define DASD_ECKD_RAS_EXTS_MAX		110U
551
+
552
+struct dasd_dso_ras_ext_range {
553
+	struct ch_t beg_ext;
554
+	struct ch_t end_ext;
555
+} __packed;
556
+
557
+/*
558
+ * Define Subsytem Operation - Release Allocated Space
559
+ */
560
+struct dasd_dso_ras_data {
561
+	__u8 order;
562
+	struct {
563
+		__u8 message:1;		/* Must be zero */
564
+		__u8 reserved1:2;
565
+		__u8 vol_type:1;	/* 0 - CKD/FBA, 1 - FB */
566
+		__u8 reserved2:4;
567
+	} __packed flags;
568
+	/* Operation Flags to specify scope */
569
+	struct {
570
+		__u8 reserved1:2;
571
+		/* Release Space by Extent */
572
+		__u8 by_extent:1;	/* 0 - entire volume, 1 - specified extents */
573
+		__u8 guarantee_init:1;
574
+		__u8 force_release:1;	/* Internal - will be ignored */
575
+		__u16 reserved2:11;
576
+	} __packed op_flags;
577
+	__u8 lss;
578
+	__u8 dev_addr;
579
+	__u32 reserved1;
580
+	__u8 reserved2[10];
581
+	__u16 nr_exts;			/* Defines number of ext_scope - max 110 */
582
+	__u16 reserved3;
583
+} __packed;
463584 
464585 
465586 /*
....@@ -551,6 +672,8 @@
551672 	int uses_cdl;
552673 	struct attrib_data_t attrib;	/* e.g. cache operations */
553674 	struct dasd_rssd_features features;
675
+	struct dasd_rssd_vsq vsq;
676
+	struct dasd_ext_pool_sum eps;
554677 	u32 real_cyl;
555678 
556679 	/* alias managemnet */
....@@ -572,7 +695,5 @@
572695 struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *);
573696 void dasd_alias_handle_summary_unit_check(struct work_struct *);
574697 void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *);
575
-void dasd_alias_lcu_setup_complete(struct dasd_device *);
576
-void dasd_alias_wait_for_lcu_setup(struct dasd_device *);
577698 int dasd_alias_update_add_device(struct dasd_device *);
578699 #endif				/* DASD_ECKD_H */