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2024-01-04 1543e317f1da31b75942316931e8f491a8920811 
 kernel/drivers/s390/scsi/zfcp_def.h
....@@ -4,7 +4,7 @@
44  *
55  * Global definitions for the zfcp device driver.
66  *
7
- * Copyright IBM Corp. 2002, 2010
7
+ * Copyright IBM Corp. 2002, 2020
88  */
99 
1010 #ifndef ZFCP_DEF_H
....@@ -41,24 +41,16 @@
4141 #include "zfcp_fc.h"
4242 #include "zfcp_qdio.h"
4343 
44
-struct zfcp_reqlist;
45
-
46
-/********************* SCSI SPECIFIC DEFINES *********************************/
47
-#define ZFCP_SCSI_ER_TIMEOUT                    (10*HZ)
48
-
4944 /********************* FSF SPECIFIC DEFINES *********************************/
5045 
5146 /* ATTENTION: value must not be used by hardware */
5247 #define FSF_QTCB_UNSOLICITED_STATUS		0x6305
5348 
54
-/* timeout value for "default timer" for fsf requests */
55
-#define ZFCP_FSF_REQUEST_TIMEOUT (60*HZ)
56
-
5749 /*************** ADAPTER/PORT/UNIT AND FSF_REQ STATUS FLAGS ******************/
5850 
5951 /*
60
- * Note, the leftmost status byte is common among adapter, port
61
- * and unit
52
+ * Note, the leftmost 12 status bits (3 nibbles) are common among adapter, port
53
+ * and unit. This is a mask for bitwise 'and' with status values.
6254  */
6355 #define ZFCP_COMMON_FLAGS			0xfff00000
6456 
....@@ -94,10 +86,53 @@
9486 #define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED       0x00000080
9587 #define ZFCP_STATUS_FSFREQ_TMFUNCFAILED         0x00000200
9688 #define ZFCP_STATUS_FSFREQ_DISMISSED            0x00001000
89
+#define ZFCP_STATUS_FSFREQ_XDATAINCOMPLETE	0x00020000
9790 
9891 /************************* STRUCTURE DEFINITIONS *****************************/
9992 
100
-struct zfcp_fsf_req;
93
+/**
94
+ * enum zfcp_erp_act_type - Type of ERP action object.
95
+ * @ZFCP_ERP_ACTION_REOPEN_LUN: LUN recovery.
96
+ * @ZFCP_ERP_ACTION_REOPEN_PORT: Port recovery.
97
+ * @ZFCP_ERP_ACTION_REOPEN_PORT_FORCED: Forced port recovery.
98
+ * @ZFCP_ERP_ACTION_REOPEN_ADAPTER: Adapter recovery.
99
+ *
100
+ * Values must fit into u8 because of code dependencies:
101
+ * zfcp_dbf_rec_trig(), &zfcp_dbf_rec_trigger.want, &zfcp_dbf_rec_trigger.need;
102
+ * zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), &zfcp_dbf_rec_running.rec_action.
103
+ */
104
+enum zfcp_erp_act_type {
105
+	ZFCP_ERP_ACTION_REOPEN_LUN	   = 1,
106
+	ZFCP_ERP_ACTION_REOPEN_PORT	   = 2,
107
+	ZFCP_ERP_ACTION_REOPEN_PORT_FORCED = 3,
108
+	ZFCP_ERP_ACTION_REOPEN_ADAPTER	   = 4,
109
+};
110
+
111
+/*
112
+ * Values must fit into u16 because of code dependencies:
113
+ * zfcp_dbf_rec_run_lvl(), zfcp_dbf_rec_run(), zfcp_dbf_rec_run_wka(),
114
+ * &zfcp_dbf_rec_running.rec_step.
115
+ */
116
+enum zfcp_erp_steps {
117
+	ZFCP_ERP_STEP_UNINITIALIZED	= 0x0000,
118
+	ZFCP_ERP_STEP_PHYS_PORT_CLOSING	= 0x0010,
119
+	ZFCP_ERP_STEP_PORT_CLOSING	= 0x0100,
120
+	ZFCP_ERP_STEP_PORT_OPENING	= 0x0800,
121
+	ZFCP_ERP_STEP_LUN_CLOSING	= 0x1000,
122
+	ZFCP_ERP_STEP_LUN_OPENING	= 0x2000,
123
+};
124
+
125
+struct zfcp_erp_action {
126
+	struct list_head list;
127
+	enum zfcp_erp_act_type type;  /* requested action code */
128
+	struct zfcp_adapter *adapter; /* device which should be recovered */
129
+	struct zfcp_port *port;
130
+	struct scsi_device *sdev;
131
+	u32		status;	      /* recovery status */
132
+	enum zfcp_erp_steps	step;	/* active step of this erp action */
133
+	unsigned long		fsf_req_id;
134
+	struct timer_list timer;
135
+};
101136 
102137 /* holds various memory pools of an adapter */
103138 struct zfcp_adapter_mempool {
....@@ -109,37 +144,6 @@
109144 	mempool_t *sr_data;
110145 	mempool_t *gid_pn;
111146 	mempool_t *qtcb_pool;
112
-};
113
-
114
-struct zfcp_erp_action {
115
-	struct list_head list;
116
-	int action;	              /* requested action code */
117
-	struct zfcp_adapter *adapter; /* device which should be recovered */
118
-	struct zfcp_port *port;
119
-	struct scsi_device *sdev;
120
-	u32		status;	      /* recovery status */
121
-	u32 step;	              /* active step of this erp action */
122
-	unsigned long		fsf_req_id;
123
-	struct timer_list timer;
124
-};
125
-
126
-struct fsf_latency_record {
127
-	u32 min;
128
-	u32 max;
129
-	u64 sum;
130
-};
131
-
132
-struct latency_cont {
133
-	struct fsf_latency_record channel;
134
-	struct fsf_latency_record fabric;
135
-	u64 counter;
136
-};
137
-
138
-struct zfcp_latencies {
139
-	struct latency_cont read;
140
-	struct latency_cont write;
141
-	struct latency_cont cmd;
142
-	spinlock_t lock;
143147 };
144148 
145149 struct zfcp_adapter {
....@@ -154,6 +158,8 @@
154158 	u32			adapter_features;  /* FCP channel features */
155159 	u32			connection_features; /* host connection features */
156160         u32			hardware_version;  /* of FCP channel */
161
+	u32			fc_security_algorithms; /* of FCP channel */
162
+	u32			fc_security_algorithms_old; /* of FCP channel */
157163 	u16			timer_ticks;       /* time int for a tick */
158164 	struct Scsi_Host	*scsi_host;	   /* Pointer to mid-layer */
159165 	struct list_head	port_list;	   /* remote port list */
....@@ -194,6 +200,7 @@
194200 	struct device_dma_parameters dma_parms;
195201 	struct zfcp_fc_events events;
196202 	unsigned long		next_port_scan;
203
+	struct zfcp_diag_adapter	*diagnostics;
197204 };
198205 
199206 struct zfcp_port {
....@@ -213,11 +220,32 @@
213220         atomic_t               erp_counter;
214221 	u32                    maxframe_size;
215222 	u32                    supported_classes;
223
+	u32                    connection_info;
224
+	u32                    connection_info_old;
216225 	struct work_struct     gid_pn_work;
217226 	struct work_struct     test_link_work;
218227 	struct work_struct     rport_work;
219228 	enum { RPORT_NONE, RPORT_ADD, RPORT_DEL }  rport_task;
220229 	unsigned int		starget_id;
230
+};
231
+
232
+struct zfcp_latency_record {
233
+	u32 min;
234
+	u32 max;
235
+	u64 sum;
236
+};
237
+
238
+struct zfcp_latency_cont {
239
+	struct zfcp_latency_record channel;
240
+	struct zfcp_latency_record fabric;
241
+	u64 counter;
242
+};
243
+
244
+struct zfcp_latencies {
245
+	struct zfcp_latency_cont read;
246
+	struct zfcp_latency_cont write;
247
+	struct zfcp_latency_cont cmd;
248
+	spinlock_t lock;
221249 };
222250 
223251 /**
....@@ -287,9 +315,7 @@
287315  * @qdio_req: qdio queue related values
288316  * @completion: used to signal the completion of the request
289317  * @status: status of the request
290
- * @fsf_command: FSF command issued
291318  * @qtcb: associated QTCB
292
- * @seq_no: sequence number of this request
293319  * @data: private data
294320  * @timer: timer data of this request
295321  * @erp_action: reference to erp action if request issued on behalf of ERP
....@@ -304,9 +330,7 @@
304330 	struct zfcp_qdio_req	qdio_req;
305331 	struct completion	completion;
306332 	u32			status;
307
-	u32			fsf_command;
308333 	struct fsf_qtcb		*qtcb;
309
-	u32			seq_no;
310334 	void			*data;
311335 	struct timer_list	timer;
312336 	struct zfcp_erp_action	*erp_action;
....@@ -321,4 +345,9 @@
321345 	return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
322346 }
323347 
348
+static inline bool zfcp_fsf_req_is_status_read_buffer(struct zfcp_fsf_req *req)
349
+{
350
+	return req->qtcb == NULL;
351
+}
352
+
324353 #endif /* ZFCP_DEF_H */