zfcp_ext.h 9.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * zfcp device driver
  4. *
  5. * External function declarations.
  6. *
  7. * Copyright IBM Corp. 2002, 2020
  8. */
  9. #ifndef ZFCP_EXT_H
  10. #define ZFCP_EXT_H
  11. #include <linux/types.h>
  12. #include <scsi/fc/fc_els.h>
  13. #include "zfcp_def.h"
  14. #include "zfcp_fc.h"
  15. /* zfcp_aux.c */
  16. extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, u64);
  17. extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
  18. extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, u64, u32,
  19. u32);
  20. extern void zfcp_sg_free_table(struct scatterlist *, int);
  21. extern int zfcp_sg_setup_table(struct scatterlist *, int);
  22. extern void zfcp_adapter_release(struct kref *);
  23. extern void zfcp_adapter_unregister(struct zfcp_adapter *);
  24. /* zfcp_ccw.c */
  25. extern struct ccw_driver zfcp_ccw_driver;
  26. extern struct zfcp_adapter *zfcp_ccw_adapter_by_cdev(struct ccw_device *);
  27. extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
  28. /* zfcp_dbf.c */
  29. extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
  30. extern void zfcp_dbf_adapter_unregister(struct zfcp_adapter *);
  31. extern void zfcp_dbf_rec_trig(char *, struct zfcp_adapter *,
  32. struct zfcp_port *, struct scsi_device *, u8, u8);
  33. extern void zfcp_dbf_rec_trig_lock(char *tag, struct zfcp_adapter *adapter,
  34. struct zfcp_port *port,
  35. struct scsi_device *sdev, u8 want, u8 need);
  36. extern void zfcp_dbf_rec_run(char *, struct zfcp_erp_action *);
  37. extern void zfcp_dbf_rec_run_lvl(int level, char *tag,
  38. struct zfcp_erp_action *erp);
  39. extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
  40. extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
  41. extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
  42. extern void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req,
  43. u64 wwpn, u32 fc_security_old,
  44. u32 fc_security_new);
  45. extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
  46. extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
  47. extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *);
  48. extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
  49. extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
  50. extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
  51. extern void zfcp_dbf_scsi_common(char *tag, int level, struct scsi_device *sdev,
  52. struct scsi_cmnd *sc,
  53. struct zfcp_fsf_req *fsf);
  54. extern void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter,
  55. unsigned int scsi_id, int ret);
  56. /* zfcp_erp.c */
  57. extern void zfcp_erp_set_adapter_status(struct zfcp_adapter *, u32);
  58. extern void zfcp_erp_clear_adapter_status(struct zfcp_adapter *, u32);
  59. extern void zfcp_erp_port_forced_no_port_dbf(char *dbftag,
  60. struct zfcp_adapter *adapter,
  61. u64 port_name, u32 port_id);
  62. extern void zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, char *);
  63. extern void zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, char *);
  64. extern void zfcp_erp_set_port_status(struct zfcp_port *, u32);
  65. extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
  66. extern void zfcp_erp_port_reopen(struct zfcp_port *port, int clear,
  67. char *dbftag);
  68. extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
  69. extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
  70. extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter,
  71. int clear, char *dbftag);
  72. extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
  73. extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32);
  74. extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *);
  75. extern void zfcp_erp_lun_shutdown(struct scsi_device *, int, char *);
  76. extern void zfcp_erp_lun_shutdown_wait(struct scsi_device *, char *);
  77. extern int zfcp_erp_thread_setup(struct zfcp_adapter *);
  78. extern void zfcp_erp_thread_kill(struct zfcp_adapter *);
  79. extern void zfcp_erp_wait(struct zfcp_adapter *);
  80. extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
  81. extern void zfcp_erp_timeout_handler(struct timer_list *t);
  82. extern void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter,
  83. char *dbftag);
  84. /* zfcp_fc.c */
  85. extern struct kmem_cache *zfcp_fc_req_cache;
  86. extern void zfcp_fc_enqueue_event(struct zfcp_adapter *,
  87. enum fc_host_event_code event_code, u32);
  88. extern void zfcp_fc_post_event(struct work_struct *);
  89. extern void zfcp_fc_scan_ports(struct work_struct *);
  90. extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
  91. extern void zfcp_fc_port_did_lookup(struct work_struct *);
  92. extern void zfcp_fc_trigger_did_lookup(struct zfcp_port *);
  93. extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fc_els_flogi *);
  94. extern void zfcp_fc_test_link(struct zfcp_port *);
  95. extern void zfcp_fc_link_test_work(struct work_struct *);
  96. extern void zfcp_fc_wka_ports_force_offline(struct zfcp_fc_wka_ports *);
  97. extern int zfcp_fc_gs_setup(struct zfcp_adapter *);
  98. extern void zfcp_fc_gs_destroy(struct zfcp_adapter *);
  99. extern int zfcp_fc_exec_bsg_job(struct bsg_job *);
  100. extern int zfcp_fc_timeout_bsg_job(struct bsg_job *);
  101. extern void zfcp_fc_sym_name_update(struct work_struct *);
  102. extern unsigned int zfcp_fc_port_scan_backoff(void);
  103. extern void zfcp_fc_conditional_port_scan(struct zfcp_adapter *);
  104. extern void zfcp_fc_inverse_conditional_port_scan(struct zfcp_adapter *);
  105. /* zfcp_fsf.c */
  106. extern struct kmem_cache *zfcp_fsf_qtcb_cache;
  107. extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
  108. extern int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *);
  109. extern int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *);
  110. extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
  111. extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
  112. extern int zfcp_fsf_open_lun(struct zfcp_erp_action *);
  113. extern int zfcp_fsf_close_lun(struct zfcp_erp_action *);
  114. extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
  115. extern int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *,
  116. struct fsf_qtcb_bottom_config *);
  117. extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *);
  118. extern int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *,
  119. struct fsf_qtcb_bottom_port *);
  120. extern u32 zfcp_fsf_convert_portspeed(u32 fsf_speed);
  121. extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
  122. extern int zfcp_fsf_status_read(struct zfcp_qdio *);
  123. extern int zfcp_status_read_refill(struct zfcp_adapter *adapter);
  124. extern int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *, struct zfcp_fsf_ct_els *,
  125. mempool_t *, unsigned int);
  126. extern int zfcp_fsf_send_els(struct zfcp_adapter *, u32,
  127. struct zfcp_fsf_ct_els *, unsigned int);
  128. extern int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *);
  129. extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
  130. extern void zfcp_fsf_fc_host_link_down(struct zfcp_adapter *adapter);
  131. extern struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_device *sdev,
  132. u8 tm_flags);
  133. extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *);
  134. extern void zfcp_fsf_reqid_check(struct zfcp_qdio *, int);
  135. enum zfcp_fsf_print_fmt {
  136. ZFCP_FSF_PRINT_FMT_LIST,
  137. ZFCP_FSF_PRINT_FMT_SINGLEITEM,
  138. };
  139. extern ssize_t zfcp_fsf_scnprint_fc_security(char *buf, size_t size,
  140. u32 fc_security,
  141. enum zfcp_fsf_print_fmt fmt);
  142. /* zfcp_qdio.c */
  143. extern int zfcp_qdio_setup(struct zfcp_adapter *);
  144. extern void zfcp_qdio_destroy(struct zfcp_qdio *);
  145. extern int zfcp_qdio_sbal_get(struct zfcp_qdio *);
  146. extern int zfcp_qdio_send(struct zfcp_qdio *, struct zfcp_qdio_req *);
  147. extern int zfcp_qdio_sbals_from_sg(struct zfcp_qdio *, struct zfcp_qdio_req *,
  148. struct scatterlist *);
  149. extern void zfcp_qdio_shost_update(struct zfcp_adapter *const adapter,
  150. const struct zfcp_qdio *const qdio);
  151. extern int zfcp_qdio_open(struct zfcp_qdio *);
  152. extern void zfcp_qdio_close(struct zfcp_qdio *);
  153. extern void zfcp_qdio_siosl(struct zfcp_adapter *);
  154. /* zfcp_scsi.c */
  155. extern bool zfcp_experimental_dix;
  156. extern struct scsi_transport_template *zfcp_scsi_transport_template;
  157. extern int zfcp_scsi_adapter_register(struct zfcp_adapter *);
  158. extern void zfcp_scsi_adapter_unregister(struct zfcp_adapter *);
  159. extern struct fc_function_template zfcp_transport_functions;
  160. extern void zfcp_scsi_rport_work(struct work_struct *);
  161. extern void zfcp_scsi_schedule_rport_register(struct zfcp_port *);
  162. extern void zfcp_scsi_schedule_rport_block(struct zfcp_port *);
  163. extern void zfcp_scsi_schedule_rports_block(struct zfcp_adapter *);
  164. extern void zfcp_scsi_set_prot(struct zfcp_adapter *);
  165. extern void zfcp_scsi_dif_sense_error(struct scsi_cmnd *, int);
  166. extern void zfcp_scsi_shost_update_config_data(
  167. struct zfcp_adapter *const adapter,
  168. const struct fsf_qtcb_bottom_config *const bottom,
  169. const bool bottom_incomplete);
  170. extern void zfcp_scsi_shost_update_port_data(
  171. struct zfcp_adapter *const adapter,
  172. const struct fsf_qtcb_bottom_port *const bottom);
  173. /* zfcp_sysfs.c */
  174. extern const struct attribute_group *zfcp_unit_attr_groups[];
  175. extern struct attribute_group zfcp_sysfs_adapter_attrs;
  176. extern const struct attribute_group *zfcp_port_attr_groups[];
  177. extern struct mutex zfcp_sysfs_port_units_mutex;
  178. extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
  179. extern struct device_attribute *zfcp_sysfs_shost_attrs[];
  180. extern const struct attribute_group zfcp_sysfs_diag_attr_group;
  181. bool zfcp_sysfs_port_is_removing(const struct zfcp_port *const port);
  182. /* zfcp_unit.c */
  183. extern int zfcp_unit_add(struct zfcp_port *, u64);
  184. extern int zfcp_unit_remove(struct zfcp_port *, u64);
  185. extern struct zfcp_unit *zfcp_unit_find(struct zfcp_port *, u64);
  186. extern struct scsi_device *zfcp_unit_sdev(struct zfcp_unit *unit);
  187. extern void zfcp_unit_scsi_scan(struct zfcp_unit *);
  188. extern void zfcp_unit_queue_scsi_scan(struct zfcp_port *);
  189. extern unsigned int zfcp_unit_sdev_status(struct zfcp_unit *);
  190. #endif /* ZFCP_EXT_H */