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linux/drivers/s390/scsi/zfcp_ext.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
[SCSI] zfcp: (cleanup) shortened copyright and author information Copyright update, shortened file headers, shortened author information. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-23 00:14:08 +08:00
* This file is part of the zfcp device driver for
* FCP adapters for IBM System z9 and zSeries.
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
[SCSI] zfcp: (cleanup) shortened copyright and author information Copyright update, shortened file headers, shortened author information. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-23 00:14:08 +08:00
* (C) Copyright IBM Corp. 2002, 2006
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef ZFCP_EXT_H
#define ZFCP_EXT_H
#include "zfcp_def.h"
extern struct zfcp_data zfcp_data;
/******************************** SYSFS *************************************/
extern int zfcp_sysfs_driver_create_files(struct device_driver *);
extern void zfcp_sysfs_driver_remove_files(struct device_driver *);
extern int zfcp_sysfs_adapter_create_files(struct device *);
extern void zfcp_sysfs_adapter_remove_files(struct device *);
extern int zfcp_sysfs_port_create_files(struct device *, u32);
extern void zfcp_sysfs_port_remove_files(struct device *, u32);
extern int zfcp_sysfs_unit_create_files(struct device *);
extern void zfcp_sysfs_unit_remove_files(struct device *);
extern void zfcp_sysfs_port_release(struct device *);
extern void zfcp_sysfs_unit_release(struct device *);
/**************************** CONFIGURATION *********************************/
extern struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *, fcp_lun_t);
extern struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *, wwn_t);
extern struct zfcp_port *zfcp_get_port_by_did(struct zfcp_adapter *, u32);
struct zfcp_adapter *zfcp_get_adapter_by_busid(char *);
extern struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *);
extern int zfcp_adapter_debug_register(struct zfcp_adapter *);
extern void zfcp_adapter_dequeue(struct zfcp_adapter *);
extern void zfcp_adapter_debug_unregister(struct zfcp_adapter *);
extern struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *, wwn_t,
u32, u32);
extern void zfcp_port_dequeue(struct zfcp_port *);
extern struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *, fcp_lun_t);
extern void zfcp_unit_dequeue(struct zfcp_unit *);
/******************************* S/390 IO ************************************/
extern int zfcp_ccw_register(void);
extern void zfcp_qdio_zero_sbals(struct qdio_buffer **, int, int);
extern int zfcp_qdio_allocate(struct zfcp_adapter *);
extern int zfcp_qdio_allocate_queues(struct zfcp_adapter *);
extern void zfcp_qdio_free_queues(struct zfcp_adapter *);
extern int zfcp_qdio_determine_pci(struct zfcp_qdio_queue *,
struct zfcp_fsf_req *);
extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_req
(struct zfcp_fsf_req *, int, int);
extern volatile struct qdio_buffer_element *zfcp_qdio_sbale_curr
(struct zfcp_fsf_req *);
extern int zfcp_qdio_sbals_from_sg
(struct zfcp_fsf_req *, unsigned long, struct scatterlist *, int, int);
extern int zfcp_qdio_sbals_from_scsicmnd
(struct zfcp_fsf_req *, unsigned long, struct scsi_cmnd *);
/******************************** FSF ****************************************/
extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
extern int zfcp_fsf_close_unit(struct zfcp_erp_action *);
extern int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *);
[SCSI] zfcp: provide support for NPIV N_Port ID Virtualization (NPIV) allows a single FCP port to appear as multiple, distinct ports providing separate port identification. NPIV is supported by FC HBAs on System z9. zfcp was adapted to support this new feature. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14 03:51:16 +08:00
extern int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *,
struct zfcp_adapter *,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct fsf_qtcb_bottom_port *);
extern int zfcp_fsf_control_file(struct zfcp_adapter *, struct zfcp_fsf_req **,
u32, u32, struct zfcp_sg_list *);
[SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req This instance will be used whenever a timer is needed for a request by zfcp. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-19 04:29:56 +08:00
extern void zfcp_fsf_start_timer(struct zfcp_fsf_req *, unsigned long);
extern void zfcp_erp_start_timer(struct zfcp_fsf_req *);
[SCSI] zfcp: Invalid locking order Invalid locking order. Kernel hangs after trying to take two locks which are dependend on each other. Introducing temporary variable to free requests. Free lock after requests are copied. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2007-02-07 20:17:57 +08:00
extern void zfcp_fsf_req_dismiss_all(struct zfcp_adapter *);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern int zfcp_fsf_status_read(struct zfcp_adapter *, int);
extern int zfcp_fsf_req_create(struct zfcp_adapter *, u32, int, mempool_t *,
unsigned long *, struct zfcp_fsf_req **);
extern int zfcp_fsf_send_ct(struct zfcp_send_ct *, mempool_t *,
struct zfcp_erp_action *);
extern int zfcp_fsf_send_els(struct zfcp_send_els *);
extern int zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *,
struct zfcp_unit *,
[SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req This instance will be used whenever a timer is needed for a request by zfcp. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-19 04:29:56 +08:00
struct scsi_cmnd *, int, int);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern int zfcp_fsf_req_complete(struct zfcp_fsf_req *);
extern void zfcp_fsf_incoming_els(struct zfcp_fsf_req *);
[SCSI] zfcp: fix bug during adapter shutdown Fixes a race between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check. During adapter shutdown it occurred that a request was cleaned up twice. First during its normal completion. Second when dismiss_all was called. The fix is to serialize access to fsf request list between zfcp_fsf_req_dismiss_all and zfcp_qdio_reqid_check and delete a fsf request from the list if its completion is triggered. (Additionally a rwlock was replaced by a spinlock and fsf_req_cleanup was eliminated.) Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-13 19:20:35 +08:00
extern void zfcp_fsf_req_free(struct zfcp_fsf_req *);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern struct zfcp_fsf_req *zfcp_fsf_send_fcp_command_task_management(
struct zfcp_adapter *, struct zfcp_unit *, u8, int);
extern struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(
unsigned long, struct zfcp_adapter *, struct zfcp_unit *, int);
/******************************* FC/FCP **************************************/
extern int zfcp_nameserver_enqueue(struct zfcp_adapter *);
extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *);
extern int zfcp_check_ct_response(struct ct_hdr *);
extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *);
[SCSI] zfcp: evaluate plogi payload to set maxframe_size, supported_classes of rports Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-05-23 00:24:33 +08:00
extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/******************************* SCSI ****************************************/
extern int zfcp_adapter_scsi_register(struct zfcp_adapter *);
extern void zfcp_adapter_scsi_unregister(struct zfcp_adapter *);
extern void zfcp_set_fcp_dl(struct fcp_cmnd_iu *, fcp_dl_t);
extern char *zfcp_get_fcp_rsp_info_ptr(struct fcp_rsp_iu *);
[S390] Get rid of a lot of sparse warnings. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-02-06 04:16:47 +08:00
extern void set_host_byte(int *, char);
extern void set_driver_byte(int *, char);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *);
extern fcp_dl_t zfcp_get_fcp_dl(struct fcp_cmnd_iu *);
extern int zfcp_scsi_command_async(struct zfcp_adapter *,struct zfcp_unit *,
[SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req This instance will be used whenever a timer is needed for a request by zfcp. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-19 04:29:56 +08:00
struct scsi_cmnd *, int);
extern int zfcp_scsi_command_sync(struct zfcp_unit *, struct scsi_cmnd *, int);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern struct fc_function_template zfcp_transport_functions;
/******************************** ERP ****************************************/
extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u32, int);
extern int zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
extern int zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
extern void zfcp_erp_adapter_failed(struct zfcp_adapter *);
extern void zfcp_erp_modify_port_status(struct zfcp_port *, u32, int);
extern int zfcp_erp_port_reopen(struct zfcp_port *, int);
extern int zfcp_erp_port_shutdown(struct zfcp_port *, int);
extern int zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
extern void zfcp_erp_port_failed(struct zfcp_port *);
extern int zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u32, int);
extern int zfcp_erp_unit_reopen(struct zfcp_unit *, int);
extern int zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
extern void zfcp_erp_unit_failed(struct zfcp_unit *);
extern int zfcp_erp_thread_setup(struct zfcp_adapter *);
extern int zfcp_erp_thread_kill(struct zfcp_adapter *);
extern int zfcp_erp_wait(struct zfcp_adapter *);
[SCSI] zfcp: minor erp bug fixes Bug fixes for zfcp's erp: - trigger adapter reopen if do_QDIO fails - avoid erp deadlock if registration of scsi target or remote port hang - do not treat as error if exchange port data fails - decrease timeout for target reset and aborts - mark unit failed if slave_destroy is called Additionally some code cleanup was done: - made some functions void when retval is not of interest - shortened initialization of zfcp's host_template - corrected some comments Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-02 17:05:52 +08:00
extern void zfcp_erp_async_handler(struct zfcp_erp_action *, unsigned long);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern int zfcp_test_link(struct zfcp_port *);
[SCSI] zfcp: fix handling of port boxed and lun boxed fsf states From: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-06-13 19:23:57 +08:00
extern void zfcp_erp_port_boxed(struct zfcp_port *);
extern void zfcp_erp_unit_boxed(struct zfcp_unit *);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
extern void zfcp_erp_port_access_denied(struct zfcp_port *);
extern void zfcp_erp_unit_access_denied(struct zfcp_unit *);
extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *);
extern void zfcp_erp_port_access_changed(struct zfcp_port *);
extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
/******************************** AUX ****************************************/
[SCSI] zfcp: enhancement of zfcp debug features Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not change. The new traces improve debugging of problems with zfcp, scsi-stack, multipath and hardware in the SAN. san_dbf traces things like ELS and CT commands, hba_dbf saves HBA specific information of requests, and scsi_dbf saves FCP and SCSI specific information of requests. Common to all new DBFs is that they provide a so called structured view. This significantly improves readability of the traces. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14 03:50:38 +08:00
extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,
struct fsf_status_read_buffer *);
extern void zfcp_hba_dbf_event_qdio(struct zfcp_adapter *,
unsigned int, unsigned int, unsigned int,
int, int);
extern void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_request(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_els_response(struct zfcp_fsf_req *);
extern void zfcp_san_dbf_event_incoming_els(struct zfcp_fsf_req *);
extern void zfcp_scsi_dbf_event_result(const char *, int, struct zfcp_adapter *,
[SCSI] zfcp: fix logging during device reset Avoid access to old fsf_requests if device reset is logged. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-11 08:42:58 +08:00
struct scsi_cmnd *,
struct zfcp_fsf_req *);
[SCSI] zfcp: enhancement of zfcp debug features Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not change. The new traces improve debugging of problems with zfcp, scsi-stack, multipath and hardware in the SAN. san_dbf traces things like ELS and CT commands, hba_dbf saves HBA specific information of requests, and scsi_dbf saves FCP and SCSI specific information of requests. Common to all new DBFs is that they provide a so called structured view. This significantly improves readability of the traces. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14 03:50:38 +08:00
extern void zfcp_scsi_dbf_event_abort(const char *, struct zfcp_adapter *,
[SCSI] zfcp: fix logging during device reset Avoid access to old fsf_requests if device reset is logged. Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-11 08:42:58 +08:00
struct scsi_cmnd *, struct zfcp_fsf_req *,
[SCSI] zfcp: fix: use correct req_id in eh_abort_handler zfcp's eh_abort_handler used the wrong request ID to identify the request to be aborted. The bug was introduced with commit fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3 for improved management of request IDs. The bug is fixed with this patch. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-09-19 04:29:20 +08:00
unsigned long);
[SCSI] zfcp: enhancement of zfcp debug features Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not change. The new traces improve debugging of problems with zfcp, scsi-stack, multipath and hardware in the SAN. san_dbf traces things like ELS and CT commands, hba_dbf saves HBA specific information of requests, and scsi_dbf saves FCP and SCSI specific information of requests. Common to all new DBFs is that they provide a so called structured view. This significantly improves readability of the traces. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14 03:50:38 +08:00
extern void zfcp_scsi_dbf_event_devreset(const char *, u8, struct zfcp_unit *,
struct scsi_cmnd *);
[SCSI] zfcp: improve management of request IDs Improve request handling. Use hash table to manage request IDs. Signed-off-by: Volker Sameske <sameske@de.ibm.com> Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-08-02 17:05:16 +08:00
extern int zfcp_reqlist_isempty(struct zfcp_adapter *);
[SCSI] zfcp: enhancement of zfcp debug features Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not change. The new traces improve debugging of problems with zfcp, scsi-stack, multipath and hardware in the SAN. san_dbf traces things like ELS and CT commands, hba_dbf saves HBA specific information of requests, and scsi_dbf saves FCP and SCSI specific information of requests. Common to all new DBFs is that they provide a so called structured view. This significantly improves readability of the traces. Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2005-09-14 03:50:38 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif /* ZFCP_EXT_H */