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freebsd-skq/sys/dev/isp/isp_library.h
mjacob d01394099a Push things closer to path failover by implementing loop down and 
gone device timers and zombie state entries. There are tunables
that can be used to select a number of parameters.

loop_down_limit - how long to wait for loop to come back up before
declaring
all devices dead (default 300 seconds)

gone_device_time- how long to wait for a device that has appeared
to leave the loop or fabric to reappear (default 30 seconds)

Internal tunables include (which should be externalized):

quick_boot_time- how long to wait when booting for loop to come up

change_is_bad- whether or not to accept devices with the same
WWNN/WWPN that reappear at a different PortID as being the 'same'
device.

Keen students of some of the subtle issues here will ask how
one can keep devices from being re-accepted at all (the answer
is to set a gone_device_time to zero- that effectively would
be the same thing).
2006-11-14 08:45:48 +00:00

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/* $FreeBSD$ */
/*-
* Qlogic Host Adapter Library Functions
*
* Copyright (c) 1999-2006 by Matthew Jacob
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#ifndef _ISP_LIBRARY_H
#define _ISP_LIBRARY_H
extern int isp_save_xs(ispsoftc_t *, XS_T *, uint32_t *);
extern XS_T *isp_find_xs(ispsoftc_t *, uint32_t);
extern uint32_t isp_find_handle(ispsoftc_t *, XS_T *);
extern uint32_t isp_handle_index(uint32_t);
extern void isp_destroy_handle(ispsoftc_t *, uint32_t);
extern int isp_getrqentry(ispsoftc_t *, uint32_t *, uint32_t *, void **);
extern void isp_print_qentry (ispsoftc_t *, char *, int, void *);
extern void isp_print_bytes(ispsoftc_t *, char *, int, void *);
extern int isp_fc_runstate(ispsoftc_t *, int);
extern void isp_dump_portdb(ispsoftc_t *);
extern void isp_shutdown(ispsoftc_t *);
extern void isp_put_hdr(ispsoftc_t *, isphdr_t *, isphdr_t *);
extern void isp_get_hdr(ispsoftc_t *, isphdr_t *, isphdr_t *);
extern int isp_get_response_type(ispsoftc_t *, isphdr_t *);
extern void
isp_put_request(ispsoftc_t *, ispreq_t *, ispreq_t *);
extern void
isp_put_marker(ispsoftc_t *, isp_marker_t *, isp_marker_t *);
extern void
isp_put_marker_24xx(ispsoftc_t *, isp_marker_24xx_t *, isp_marker_24xx_t *);
extern void
isp_put_request_t2(ispsoftc_t *, ispreqt2_t *, ispreqt2_t *);
extern void
isp_put_request_t2e(ispsoftc_t *, ispreqt2e_t *, ispreqt2e_t *);
extern void
isp_put_request_t3(ispsoftc_t *, ispreqt3_t *, ispreqt3_t *);
extern void
isp_put_request_t3e(ispsoftc_t *, ispreqt3e_t *, ispreqt3e_t *);
extern void
isp_put_extended_request(ispsoftc_t *, ispextreq_t *, ispextreq_t *);
extern void
isp_put_request_t7(ispsoftc_t *, ispreqt7_t *, ispreqt7_t *);
extern void
isp_put_24xx_abrt(ispsoftc_t *, isp24xx_abrt_t *, isp24xx_abrt_t *);
extern void
isp_put_cont_req(ispsoftc_t *, ispcontreq_t *, ispcontreq_t *);
extern void
isp_put_cont64_req(ispsoftc_t *, ispcontreq64_t *, ispcontreq64_t *);
extern void
isp_get_response(ispsoftc_t *, ispstatusreq_t *, ispstatusreq_t *);
extern void isp_get_24xx_response(ispsoftc_t *, isp24xx_statusreq_t *,
isp24xx_statusreq_t *);
void
isp_get_24xx_abrt(ispsoftc_t *, isp24xx_abrt_t *, isp24xx_abrt_t *);
extern void
isp_get_rio2(ispsoftc_t *, isp_rio2_t *, isp_rio2_t *);
extern void
isp_put_icb(ispsoftc_t *, isp_icb_t *, isp_icb_t *);
extern void
isp_put_icb_2400(ispsoftc_t *, isp_icb_2400_t *, isp_icb_2400_t *);
extern void
isp_get_pdb_21xx(ispsoftc_t *, isp_pdb_21xx_t *, isp_pdb_21xx_t *);
extern void
isp_get_pdb_24xx(ispsoftc_t *, isp_pdb_24xx_t *, isp_pdb_24xx_t *);
extern void
isp_get_plogx(ispsoftc_t *, isp_plogx_t *, isp_plogx_t *);
extern void
isp_put_plogx(ispsoftc_t *, isp_plogx_t *, isp_plogx_t *);
extern void
isp_get_ct_pt(ispsoftc_t *isp, isp_ct_pt_t *, isp_ct_pt_t *);
extern void
isp_put_ct_pt(ispsoftc_t *isp, isp_ct_pt_t *, isp_ct_pt_t *);
extern void
isp_put_sns_request(ispsoftc_t *, sns_screq_t *, sns_screq_t *);
extern void
isp_put_gid_ft_request(ispsoftc_t *, sns_gid_ft_req_t *,
sns_gid_ft_req_t *);
extern void
isp_put_gxn_id_request(ispsoftc_t *, sns_gxn_id_req_t *,
sns_gxn_id_req_t *);
extern void
isp_get_sns_response(ispsoftc_t *, sns_scrsp_t *, sns_scrsp_t *, int);
extern void
isp_get_gid_ft_response(ispsoftc_t *, sns_gid_ft_rsp_t *,
sns_gid_ft_rsp_t *, int);
extern void
isp_get_gxn_id_response(ispsoftc_t *, sns_gxn_id_rsp_t *,
sns_gxn_id_rsp_t *);
extern void
isp_get_gff_id_response(ispsoftc_t *, sns_gff_id_rsp_t *,
sns_gff_id_rsp_t *);
extern void
isp_get_ga_nxt_response(ispsoftc_t *, sns_ga_nxt_rsp_t *,
sns_ga_nxt_rsp_t *);
extern void
isp_get_els(ispsoftc_t *, els_t *, els_t *);
extern void
isp_put_els(ispsoftc_t *, els_t *, els_t *);
extern void
isp_get_fc_hdr(ispsoftc_t *, fc_hdr_t *, fc_hdr_t *);
extern void
isp_get_fcp_cmnd_iu(ispsoftc_t *, fcp_cmnd_iu_t *, fcp_cmnd_iu_t *);
extern void isp_put_rft_id(ispsoftc_t *, rft_id_t *, rft_id_t *);
extern void isp_get_ct_hdr(ispsoftc_t *isp, ct_hdr_t *, ct_hdr_t *);
extern void isp_put_ct_hdr(ispsoftc_t *isp, ct_hdr_t *, ct_hdr_t *);
#ifdef ISP_TARGET_MODE
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <dev/ic/isp_target.h>
#elif defined(__FreeBSD__)
#include <dev/isp/isp_target.h>
#else
#include "isp_target.h"
#endif
#define IS_TARGET_HANDLE(x) ((x) & 0x8000)
extern int isp_save_xs_tgt(ispsoftc_t *, void *, uint32_t *);
extern void *isp_find_xs_tgt(ispsoftc_t *, uint32_t);
extern uint32_t isp_find_tgt_handle(ispsoftc_t *, void *);
extern void isp_destroy_tgt_handle(ispsoftc_t *, uint32_t);
extern void
isp_put_atio(ispsoftc_t *, at_entry_t *, at_entry_t *);
extern void
isp_get_atio(ispsoftc_t *, at_entry_t *, at_entry_t *);
extern void
isp_put_atio2(ispsoftc_t *, at2_entry_t *, at2_entry_t *);
extern void
isp_put_atio2e(ispsoftc_t *, at2e_entry_t *, at2e_entry_t *);
extern void
isp_get_atio2(ispsoftc_t *, at2_entry_t *, at2_entry_t *);
extern void
isp_get_atio2e(ispsoftc_t *, at2e_entry_t *, at2e_entry_t *);
extern void
isp_get_atio7(ispsoftc_t *isp, at7_entry_t *, at7_entry_t *);
extern void
isp_put_ctio(ispsoftc_t *, ct_entry_t *, ct_entry_t *);
extern void
isp_get_ctio(ispsoftc_t *, ct_entry_t *, ct_entry_t *);
extern void
isp_put_ctio2(ispsoftc_t *, ct2_entry_t *, ct2_entry_t *);
extern void
isp_put_ctio2e(ispsoftc_t *, ct2e_entry_t *, ct2e_entry_t *);
extern void
isp_put_ctio7(ispsoftc_t *, ct7_entry_t *, ct7_entry_t *);
extern void
isp_get_ctio2(ispsoftc_t *, ct2_entry_t *, ct2_entry_t *);
extern void
isp_get_ctio2e(ispsoftc_t *, ct2e_entry_t *, ct2e_entry_t *);
extern void
isp_get_ctio7(ispsoftc_t *, ct7_entry_t *, ct7_entry_t *);
extern void
isp_put_enable_lun(ispsoftc_t *, lun_entry_t *, lun_entry_t *);
extern void
isp_get_enable_lun(ispsoftc_t *, lun_entry_t *, lun_entry_t *);
extern void
isp_put_notify(ispsoftc_t *, in_entry_t *, in_entry_t *);
extern void
isp_get_notify(ispsoftc_t *, in_entry_t *, in_entry_t *);
extern void
isp_put_notify_fc(ispsoftc_t *, in_fcentry_t *, in_fcentry_t *);
extern void
isp_put_notify_fc_e(ispsoftc_t *, in_fcentry_e_t *, in_fcentry_e_t *);
extern void
isp_put_notify_24xx(ispsoftc_t *, in_fcentry_24xx_t *, in_fcentry_24xx_t *);
extern void
isp_get_notify_fc(ispsoftc_t *, in_fcentry_t *, in_fcentry_t *);
extern void
isp_get_notify_fc_e(ispsoftc_t *, in_fcentry_e_t *, in_fcentry_e_t *);
extern void
isp_get_notify_24xx(ispsoftc_t *, in_fcentry_24xx_t *, in_fcentry_24xx_t *);
extern void
isp_put_notify_ack(ispsoftc_t *, na_entry_t *, na_entry_t *);
extern void
isp_get_notify_ack(ispsoftc_t *, na_entry_t *, na_entry_t *);
extern void
isp_put_notify_24xx_ack(ispsoftc_t *, na_fcentry_24xx_t *, na_fcentry_24xx_t *);
extern void
isp_put_notify_ack_fc(ispsoftc_t *, na_fcentry_t *, na_fcentry_t *);
extern void
isp_put_notify_ack_fc_e(ispsoftc_t *, na_fcentry_e_t *, na_fcentry_e_t *);
extern void isp_put_notify_ack_24xx(ispsoftc_t *, na_fcentry_24xx_t *,
na_fcentry_24xx_t *);
extern void
isp_get_notify_ack_fc(ispsoftc_t *, na_fcentry_t *, na_fcentry_t *);
extern void
isp_get_notify_ack_fc_e(ispsoftc_t *, na_fcentry_e_t *, na_fcentry_e_t *);
extern void isp_get_notify_ack_24xx(ispsoftc_t *, na_fcentry_24xx_t *,
na_fcentry_24xx_t *);
extern void
isp_get_abts(ispsoftc_t *, abts_t *, abts_t *);
extern void
isp_put_abts_rsp(ispsoftc_t *, abts_rsp_t *, abts_rsp_t *);
extern void
isp_get_abts_rsp(ispsoftc_t *, abts_rsp_t *, abts_rsp_t *);
#endif /* ISP_TARGET_MODE */
#endif /* _ISP_LIBRARY_H */
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