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10#ifndef ZFCP_DEF_H
11#define ZFCP_DEF_H
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14
15#include <linux/init.h>
16#include <linux/moduleparam.h>
17#include <linux/major.h>
18#include <linux/blkdev.h>
19#include <linux/delay.h>
20#include <linux/timer.h>
21#include <linux/slab.h>
22#include <linux/mempool.h>
23#include <linux/syscalls.h>
24#include <linux/scatterlist.h>
25#include <linux/ioctl.h>
26#include <scsi/fc/fc_fs.h>
27#include <scsi/fc/fc_gs.h>
28#include <scsi/scsi.h>
29#include <scsi/scsi_tcq.h>
30#include <scsi/scsi_cmnd.h>
31#include <scsi/scsi_device.h>
32#include <scsi/scsi_host.h>
33#include <scsi/scsi_transport.h>
34#include <scsi/scsi_transport_fc.h>
35#include <scsi/scsi_bsg_fc.h>
36#include <asm/ccwdev.h>
37#include <asm/debug.h>
38#include <asm/ebcdic.h>
39#include <asm/sysinfo.h>
40#include "zfcp_fsf.h"
41#include "zfcp_fc.h"
42#include "zfcp_qdio.h"
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46
47#define FSF_QTCB_UNSOLICITED_STATUS 0x6305
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54
55#define ZFCP_COMMON_FLAGS 0xfff00000
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57
58#define ZFCP_STATUS_COMMON_RUNNING 0x40000000
59#define ZFCP_STATUS_COMMON_ERP_FAILED 0x20000000
60#define ZFCP_STATUS_COMMON_UNBLOCKED 0x10000000
61#define ZFCP_STATUS_COMMON_OPEN 0x04000000
62#define ZFCP_STATUS_COMMON_ERP_INUSE 0x01000000
63#define ZFCP_STATUS_COMMON_ACCESS_DENIED 0x00800000
64#define ZFCP_STATUS_COMMON_ACCESS_BOXED 0x00400000
65#define ZFCP_STATUS_COMMON_NOESC 0x00200000
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67
68#define ZFCP_STATUS_ADAPTER_MB_ACT 0x00000001
69#define ZFCP_STATUS_ADAPTER_QDIOUP 0x00000002
70#define ZFCP_STATUS_ADAPTER_SIOSL_ISSUED 0x00000004
71#define ZFCP_STATUS_ADAPTER_XCONFIG_OK 0x00000008
72#define ZFCP_STATUS_ADAPTER_HOST_CON_INIT 0x00000010
73#define ZFCP_STATUS_ADAPTER_SUSPENDED 0x00000040
74#define ZFCP_STATUS_ADAPTER_ERP_PENDING 0x00000100
75#define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED 0x00000200
76#define ZFCP_STATUS_ADAPTER_DATA_DIV_ENABLED 0x00000400
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78
79#define ZFCP_STATUS_PORT_PHYS_OPEN 0x00000001
80#define ZFCP_STATUS_PORT_LINK_TEST 0x00000002
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82
83#define ZFCP_STATUS_FSFREQ_ERROR 0x00000008
84#define ZFCP_STATUS_FSFREQ_CLEANUP 0x00000010
85#define ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED 0x00000040
86#define ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED 0x00000080
87#define ZFCP_STATUS_FSFREQ_TMFUNCFAILED 0x00000200
88#define ZFCP_STATUS_FSFREQ_DISMISSED 0x00001000
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103enum zfcp_erp_act_type {
104 ZFCP_ERP_ACTION_REOPEN_LUN = 1,
105 ZFCP_ERP_ACTION_REOPEN_PORT = 2,
106 ZFCP_ERP_ACTION_REOPEN_PORT_FORCED = 3,
107 ZFCP_ERP_ACTION_REOPEN_ADAPTER = 4,
108};
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114
115enum zfcp_erp_steps {
116 ZFCP_ERP_STEP_UNINITIALIZED = 0x0000,
117 ZFCP_ERP_STEP_PHYS_PORT_CLOSING = 0x0010,
118 ZFCP_ERP_STEP_PORT_CLOSING = 0x0100,
119 ZFCP_ERP_STEP_PORT_OPENING = 0x0800,
120 ZFCP_ERP_STEP_LUN_CLOSING = 0x1000,
121 ZFCP_ERP_STEP_LUN_OPENING = 0x2000,
122};
123
124struct zfcp_erp_action {
125 struct list_head list;
126 enum zfcp_erp_act_type type;
127 struct zfcp_adapter *adapter;
128 struct zfcp_port *port;
129 struct scsi_device *sdev;
130 u32 status;
131 enum zfcp_erp_steps step;
132 unsigned long fsf_req_id;
133 struct timer_list timer;
134};
135
136
137struct zfcp_adapter_mempool {
138 mempool_t *erp_req;
139 mempool_t *gid_pn_req;
140 mempool_t *scsi_req;
141 mempool_t *scsi_abort;
142 mempool_t *status_read_req;
143 mempool_t *sr_data;
144 mempool_t *gid_pn;
145 mempool_t *qtcb_pool;
146};
147
148struct zfcp_adapter {
149 struct kref ref;
150 u64 peer_wwnn;
151 u64 peer_wwpn;
152 u32 peer_d_id;
153 struct ccw_device *ccw_device;
154 struct zfcp_qdio *qdio;
155 u32 hydra_version;
156 u32 fsf_lic_version;
157 u32 adapter_features;
158 u32 connection_features;
159 u32 hardware_version;
160 u16 timer_ticks;
161 struct Scsi_Host *scsi_host;
162 struct list_head port_list;
163 rwlock_t port_list_lock;
164 unsigned long req_no;
165 struct zfcp_reqlist *req_list;
166 u32 fsf_req_seq_no;
167 rwlock_t abort_lock;
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169
170 atomic_t stat_miss;
171 unsigned int stat_read_buf_num;
172 struct work_struct stat_work;
173 atomic_t status;
174 struct list_head erp_ready_head;
175
176 wait_queue_head_t erp_ready_wq;
177 struct list_head erp_running_head;
178 rwlock_t erp_lock;
179 wait_queue_head_t erp_done_wqh;
180 struct zfcp_erp_action erp_action;
181 atomic_t erp_counter;
182 u32 erp_total_count;
183
184 u32 erp_low_mem_count;
185
186 struct task_struct *erp_thread;
187 struct zfcp_fc_wka_ports *gs;
188 struct zfcp_dbf *dbf;
189 struct zfcp_adapter_mempool pool;
190 struct fc_host_statistics *fc_stats;
191 struct fsf_qtcb_bottom_port *stats_reset_data;
192 unsigned long stats_reset;
193 struct delayed_work scan_work;
194 struct work_struct ns_up_work;
195 struct service_level service_level;
196 struct workqueue_struct *work_queue;
197 struct device_dma_parameters dma_parms;
198 struct zfcp_fc_events events;
199 unsigned long next_port_scan;
200};
201
202struct zfcp_port {
203 struct device dev;
204 struct fc_rport *rport;
205 struct list_head list;
206 struct zfcp_adapter *adapter;
207 struct list_head unit_list;
208 rwlock_t unit_list_lock;
209 atomic_t units;
210 atomic_t status;
211 u64 wwnn;
212 u64 wwpn;
213 u32 d_id;
214 u32 handle;
215 struct zfcp_erp_action erp_action;
216 atomic_t erp_counter;
217 u32 maxframe_size;
218 u32 supported_classes;
219 struct work_struct gid_pn_work;
220 struct work_struct test_link_work;
221 struct work_struct rport_work;
222 enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task;
223 unsigned int starget_id;
224};
225
226struct zfcp_latency_record {
227 u32 min;
228 u32 max;
229 u64 sum;
230};
231
232struct zfcp_latency_cont {
233 struct zfcp_latency_record channel;
234 struct zfcp_latency_record fabric;
235 u64 counter;
236};
237
238struct zfcp_latencies {
239 struct zfcp_latency_cont read;
240 struct zfcp_latency_cont write;
241 struct zfcp_latency_cont cmd;
242 spinlock_t lock;
243};
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257struct zfcp_unit {
258 struct device dev;
259 struct list_head list;
260 struct zfcp_port *port;
261 u64 fcp_lun;
262 struct work_struct scsi_work;
263};
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274struct zfcp_scsi_dev {
275 atomic_t status;
276 u32 lun_handle;
277 struct zfcp_erp_action erp_action;
278 atomic_t erp_counter;
279 struct zfcp_latencies latencies;
280 struct zfcp_port *port;
281};
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287static inline struct zfcp_scsi_dev *sdev_to_zfcp(struct scsi_device *sdev)
288{
289 return scsi_transport_device_data(sdev);
290}
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296static inline u64 zfcp_scsi_dev_lun(struct scsi_device *sdev)
297{
298 u64 fcp_lun;
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300 int_to_scsilun(sdev->lun, (struct scsi_lun *)&fcp_lun);
301 return fcp_lun;
302}
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320struct zfcp_fsf_req {
321 struct list_head list;
322 unsigned long req_id;
323 struct zfcp_adapter *adapter;
324 struct zfcp_qdio_req qdio_req;
325 struct completion completion;
326 u32 status;
327 struct fsf_qtcb *qtcb;
328 void *data;
329 struct timer_list timer;
330 struct zfcp_erp_action *erp_action;
331 mempool_t *pool;
332 unsigned long long issued;
333 void (*handler)(struct zfcp_fsf_req *);
334};
335
336static inline
337int zfcp_adapter_multi_buffer_active(struct zfcp_adapter *adapter)
338{
339 return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
340}
341
342static inline bool zfcp_fsf_req_is_status_read_buffer(struct zfcp_fsf_req *req)
343{
344 return req->qtcb == NULL;
345}
346
347#endif
348