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10#ifndef ZFCP_DEF_H
11#define ZFCP_DEF_H
12
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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
89#define ZFCP_STATUS_FSFREQ_XDATAINCOMPLETE 0x00020000
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104enum 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};
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116enum 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
125struct zfcp_erp_action {
126 struct list_head list;
127 enum zfcp_erp_act_type type;
128 struct zfcp_adapter *adapter;
129 struct zfcp_port *port;
130 struct scsi_device *sdev;
131 u32 status;
132 enum zfcp_erp_steps step;
133 unsigned long fsf_req_id;
134 struct timer_list timer;
135};
136
137
138struct zfcp_adapter_mempool {
139 mempool_t *erp_req;
140 mempool_t *gid_pn_req;
141 mempool_t *scsi_req;
142 mempool_t *scsi_abort;
143 mempool_t *status_read_req;
144 mempool_t *sr_data;
145 mempool_t *gid_pn;
146 mempool_t *qtcb_pool;
147};
148
149struct zfcp_adapter {
150 struct kref ref;
151 u64 peer_wwnn;
152 u64 peer_wwpn;
153 u32 peer_d_id;
154 struct ccw_device *ccw_device;
155 struct zfcp_qdio *qdio;
156 u32 hydra_version;
157 u32 fsf_lic_version;
158 u32 adapter_features;
159 u32 connection_features;
160 u32 hardware_version;
161 u32 fc_security_algorithms;
162 u32 fc_security_algorithms_old;
163 u16 timer_ticks;
164 struct Scsi_Host *scsi_host;
165 struct list_head port_list;
166 rwlock_t port_list_lock;
167 unsigned long req_no;
168 struct zfcp_reqlist *req_list;
169 u32 fsf_req_seq_no;
170 rwlock_t abort_lock;
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172
173 atomic_t stat_miss;
174 unsigned int stat_read_buf_num;
175 struct work_struct stat_work;
176 atomic_t status;
177 struct list_head erp_ready_head;
178
179 wait_queue_head_t erp_ready_wq;
180 struct list_head erp_running_head;
181 rwlock_t erp_lock;
182 wait_queue_head_t erp_done_wqh;
183 struct zfcp_erp_action erp_action;
184 atomic_t erp_counter;
185 u32 erp_total_count;
186
187 u32 erp_low_mem_count;
188
189 struct task_struct *erp_thread;
190 struct zfcp_fc_wka_ports *gs;
191 struct zfcp_dbf *dbf;
192 struct zfcp_adapter_mempool pool;
193 struct fc_host_statistics *fc_stats;
194 struct fsf_qtcb_bottom_port *stats_reset_data;
195 unsigned long stats_reset;
196 struct delayed_work scan_work;
197 struct work_struct ns_up_work;
198 struct service_level service_level;
199 struct workqueue_struct *work_queue;
200 struct device_dma_parameters dma_parms;
201 struct zfcp_fc_events events;
202 unsigned long next_port_scan;
203 struct zfcp_diag_adapter *diagnostics;
204};
205
206struct zfcp_port {
207 struct device dev;
208 struct fc_rport *rport;
209 struct list_head list;
210 struct zfcp_adapter *adapter;
211 struct list_head unit_list;
212 rwlock_t unit_list_lock;
213 atomic_t units;
214 atomic_t status;
215 u64 wwnn;
216 u64 wwpn;
217 u32 d_id;
218 u32 handle;
219 struct zfcp_erp_action erp_action;
220 atomic_t erp_counter;
221 u32 maxframe_size;
222 u32 supported_classes;
223 u32 connection_info;
224 u32 connection_info_old;
225 struct work_struct gid_pn_work;
226 struct work_struct test_link_work;
227 struct work_struct rport_work;
228 enum { RPORT_NONE, RPORT_ADD, RPORT_DEL } rport_task;
229 unsigned int starget_id;
230};
231
232struct zfcp_latency_record {
233 u32 min;
234 u32 max;
235 u64 sum;
236};
237
238struct zfcp_latency_cont {
239 struct zfcp_latency_record channel;
240 struct zfcp_latency_record fabric;
241 u64 counter;
242};
243
244struct zfcp_latencies {
245 struct zfcp_latency_cont read;
246 struct zfcp_latency_cont write;
247 struct zfcp_latency_cont cmd;
248 spinlock_t lock;
249};
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263struct zfcp_unit {
264 struct device dev;
265 struct list_head list;
266 struct zfcp_port *port;
267 u64 fcp_lun;
268 struct work_struct scsi_work;
269};
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280struct zfcp_scsi_dev {
281 atomic_t status;
282 u32 lun_handle;
283 struct zfcp_erp_action erp_action;
284 atomic_t erp_counter;
285 struct zfcp_latencies latencies;
286 struct zfcp_port *port;
287};
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293static inline struct zfcp_scsi_dev *sdev_to_zfcp(struct scsi_device *sdev)
294{
295 return scsi_transport_device_data(sdev);
296}
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302static inline u64 zfcp_scsi_dev_lun(struct scsi_device *sdev)
303{
304 u64 fcp_lun;
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306 int_to_scsilun(sdev->lun, (struct scsi_lun *)&fcp_lun);
307 return fcp_lun;
308}
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326struct zfcp_fsf_req {
327 struct list_head list;
328 unsigned long req_id;
329 struct zfcp_adapter *adapter;
330 struct zfcp_qdio_req qdio_req;
331 struct completion completion;
332 u32 status;
333 struct fsf_qtcb *qtcb;
334 void *data;
335 struct timer_list timer;
336 struct zfcp_erp_action *erp_action;
337 mempool_t *pool;
338 unsigned long long issued;
339 void (*handler)(struct zfcp_fsf_req *);
340};
341
342static inline
343int zfcp_adapter_multi_buffer_active(struct zfcp_adapter *adapter)
344{
345 return atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_MB_ACT;
346}
347
348static inline bool zfcp_fsf_req_is_status_read_buffer(struct zfcp_fsf_req *req)
349{
350 return req->qtcb == NULL;
351}
352
353#endif
354