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NetBSD/sys/dev/scsipi/sdvar.h

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merge ktrace-lwp.
2005-12-11 15:16:03 +03:00
/* $NetBSD: sdvar.h,v 1.28 2005/12/11 12:23:51 christos Exp $ */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
Assign my copyrights to TNF.
1998-08-17 04:49:01 +04:00
/*-
Do not manipulate xs->bp in "generic" code -- do it only in the psw_done routine. As part of this, pass down our pre-parsed error code -- though this interface will probably change later to accomodate better error handling.
2004-09-18 03:10:50 +04:00
* Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
Assign my copyrights to TNF.
1998-08-17 04:49:01 +04:00
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
*
* 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, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
Assign my copyrights to TNF.
1998-08-17 04:49:01 +04:00
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
*
Assign my copyrights to TNF.
1998-08-17 04:49:01 +04:00
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
*/
/*
* Originally written by Julian Elischer (julian@dialix.oz.au)
* for TRW Financial Systems for use under the MACH(2.5) operating system.
*
* TRW Financial Systems, in accordance with their agreement with Carnegie
* Mellon University, makes this software available to CMU to distribute
* or use in any manner that they see fit as long as this message is kept with
* the software. For this reason TFS also grants any other persons or
* organisations permission to use or modify this software.
*
* TFS supplies this software to be publicly redistributed
* on the understanding that TFS is not responsible for the correct
* functioning of this software in any circumstances.
*
* Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
*/
Add multiple inclusion protection.
2003-01-07 00:02:18 +03:00
#ifndef _DEV_SCSIPI_SDVAR_H_
#define _DEV_SCSIPI_SDVAR_H_
Make SDRETRIES an option you can dig out of opt_scsi.h. Add SD_IO_TIMEOUT (an option in opt_scsi.h) also, which defaults to the normal 60 * 1000 timeout for normal read/write commamds. This allows you to shorten or lengthen the timeout as needed.
2001-05-22 22:59:57 +04:00
#include "opt_scsi.h"
include "rnd.h" explicitely since the size of sd_softc depends on it (sd_scsi.c and sd_atapi.c missed it, leading to random memory corruption)
2000-01-22 19:35:25 +03:00
#include "rnd.h"
#if NRND > 0
#include <sys/rnd.h>
#endif
Make SDRETRIES an option you can dig out of opt_scsi.h. Add SD_IO_TIMEOUT (an option in opt_scsi.h) also, which defaults to the normal 60 * 1000 timeout for normal read/write commamds. This allows you to shorten or lengthen the timeout as needed.
2001-05-22 22:59:57 +04:00
#ifndef SDRETRIES
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
#define SDRETRIES 4
Make SDRETRIES an option you can dig out of opt_scsi.h. Add SD_IO_TIMEOUT (an option in opt_scsi.h) also, which defaults to the normal 60 * 1000 timeout for normal read/write commamds. This allows you to shorten or lengthen the timeout as needed.
2001-05-22 22:59:57 +04:00
#endif
#ifndef SD_IO_TIMEOUT
fix typo in previous revision so that the scsi code compiles again.
2001-05-23 06:16:19 +04:00
#define SD_IO_TIMEOUT (60 * 1000)
Make SDRETRIES an option you can dig out of opt_scsi.h. Add SD_IO_TIMEOUT (an option in opt_scsi.h) also, which defaults to the normal 60 * 1000 timeout for normal read/write commamds. This allows you to shorten or lengthen the timeout as needed.
2001-05-22 22:59:57 +04:00
#endif
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
struct sd_softc {
struct device sc_dev;
struct disk sc_dk;
int flags;
#define SDF_WLABEL 0x04 /* label is writable */
#define SDF_LABELLING 0x08 /* writing label */
#define SDF_ANCIENT 0x10 /* disk is ancient; for minphys */
Keep track if the disk has had done i/o, making it dirty. On last close, or at shutdown, flush the cache if the disk is still dirty and it support cache flushing. Fixes PRs #5588 (Jim Bernard) and #5589 (Justin Gibbs).
1998-08-15 05:10:54 +04:00
#define SDF_DIRTY 0x20 /* disk is dirty; needs cache flush */
#define SDF_FLUSHING 0x40 /* flushing, for sddone() */
Pull up the thorpej_scsipi branch to main branch. This is a completely rewritten scsipi_xfer execution engine, and the associated changes to HBA drivers. Overview of changes & features: - All xfers are queued in the mid-layer, rather than doing so in an ad-hoc fashion in individual adapter drivers. - Adapter/channel resource management in the mid-layer, avoids even trying to start running an xfer if the adapter/channel doesn't have the resources. - Better communication between the mid-layer and the adapters. - Asynchronous event notification mechanism from adapter to mid-layer and peripherals. - Better peripheral queue management: freeze/thaw, sorted requeueing during recovery, etc. - Clean separation of peripherals, adapters, and adapter channels (no more scsipi_link). - Kernel thread for each scsipi_channel makes error recovery much easier (no more dealing with interrupt context when recovering from an error). - Mid-layer support for tagged queueing: commands can have the tag type set explicitly, tag IDs are allocated in the mid-layer (thus eliminating the need to use buggy tag ID allocation schemes in many adapter drivers). - support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command will be requeued, or a REQUEST SENSE will be sent as appropriate. Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge
2001-04-25 21:53:04 +04:00
struct scsipi_periph *sc_periph;/* contains our targ, lun, etc. */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
struct disk_parms {
Backing out changes to clean up scsipi. I was pointed out there were problems i hadn't seen. To prevent lossage i'd decided to back off all changes and let them be reviewed on tech-kern.
2005-02-01 03:19:34 +03:00
u_long heads; /* number of heads */
u_long cyls; /* number of cylinders */
u_long sectors; /* number of sectors/track */
u_long blksize; /* number of bytes/sector */
u_long rot_rate; /* rotational rate, in RPM */
u_int64_t disksize; /* total number sectors */
u_int64_t disksize512; /* total number sectors */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
} params;
Pull up the thorpej_scsipi branch to main branch. This is a completely rewritten scsipi_xfer execution engine, and the associated changes to HBA drivers. Overview of changes & features: - All xfers are queued in the mid-layer, rather than doing so in an ad-hoc fashion in individual adapter drivers. - Adapter/channel resource management in the mid-layer, avoids even trying to start running an xfer if the adapter/channel doesn't have the resources. - Better communication between the mid-layer and the adapters. - Asynchronous event notification mechanism from adapter to mid-layer and peripherals. - Better peripheral queue management: freeze/thaw, sorted requeueing during recovery, etc. - Clean separation of peripherals, adapters, and adapter channels (no more scsipi_link). - Kernel thread for each scsipi_channel makes error recovery much easier (no more dealing with interrupt context when recovering from an error). - Mid-layer support for tagged queueing: commands can have the tag type set explicitly, tag IDs are allocated in the mid-layer (thus eliminating the need to use buggy tag ID allocation schemes in many adapter drivers). - support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command will be requeued, or a REQUEST SENSE will be sent as appropriate. Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge
2001-04-25 21:53:04 +04:00
- change the way to specify a bufq strategy. (by string rather than by number) - rather than embedding bufq_state in driver softc, have a pointer to the former. - move bufq related functions from kern/subr_disk.c to kern/subr_bufq.c. - rename method to strategy for consistency. - move some definitions which don't need to be exposed to the rest of kernel from sys/bufq.h to sys/bufq_impl.h. (is it better to move it to kern/ or somewhere?) - fix some obvious breakage in dev/qbus/ts.c. (not tested)
2005-10-15 21:29:10 +04:00
struct bufq_state *buf_queue;
Improve handling of memory shortage, to fix problems like: sd3(mpt0:0:1:0): unable to allocate scsipi_xfer sd3: not queued, error 12 Havard Eidnes's analysis of this problem is that the scsipi_xfer pool is competing for resources with other pools, including the the inode and vnode pools which can grow quite large. *_scsipi_cmd(): don't biodone the buffer if scsipi_make_xs() fails, let the caller deal with the problem start function of block devices drivers: dequeue the buffer after the scsipi_command() call. If scsipi_command() fails with ENOMEM don't dequeue the buffer, and schedule a callout to call the start function after some delay. scsipi_init(): prime the scsipi_xfer_pool with one page. This ensure that there is always some scsipi_xfer to play with. If scsipi_command() fails because of pool_get(), we're sure there will be resources available later, when the pending commands have completed. Reviewed by Jason Thorpe and Havard Eidnes. Todo: remove the "unable to allocate scsipi_xfer" and "not queued, error %d" printfs, but I choose to keep them for now, to help make sure the code does what it should.
2004-08-28 00:37:28 +04:00
struct callout sc_callout;
Backing out changes to clean up scsipi. I was pointed out there were problems i hadn't seen. To prevent lossage i'd decided to back off all changes and let them be reviewed on tech-kern.
2005-02-01 03:19:34 +03:00
u_int8_t type;
Improve generation of default disklabels: -store printable product ID in cd's and sd's softc, use it as "typename" -for this, add a "destination buffer length" argument to scsipi_strvis() -return ATAPI device type for ATAPI devices
1998-08-05 20:29:04 +04:00
char name[16]; /* product name, for default disklabel */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
Add a shutdown hook for SCSI-2 and higher disks that issues a SYNCHRONIZE CACHE operation with address 0 length 0, which, according to the SCSI-2 spec, should be interpreted as "synchronize all remaining blocks beginning at address 0".
1998-06-11 02:17:39 +04:00
void *sc_sdhook; /* our shutdown hook */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
#if NRND > 0
rndsource_element_t rnd_source;
#endif
};
parameter with two es. From Peter Postma.
2004-02-24 18:22:01 +03:00
#define SDGP_RESULT_OK 0 /* parameters obtained */
add support for an ATAPI attachment for 'sd'. fix 'cd' driver's NCD_SCSI bogosity (was using testing wrong macro!) clean up in various ways: * make common atapi_mode_{sense,select}() functions. * put ATAPI data structures in more sensible headers, split up by device type. * include headers a bit more carefully. * pass flags to attachment-specific cd functions, and use them. * get rid of SCSI bits in scsipi_base.h's scsipi_make_xs(), move them into the correct place in scsi_base.c. * fix minor typo in struct name in scsipiconf.h (which was apparently never used except in a #define later in the same file). * use __attribute__ to force 4-byte alignment for xs command store, so that architectures trying to bus_space_write_multi_N() (where N > 1) that data to a controller won't lose. * clean up a few comments in typos, and make a few #defines easier to understand/maintain. * rename cd_link.h to cdvar.h (via repository copy). This is exactly what a 'var' file is supposed to be.
1998-01-15 05:21:27 +03:00
#define SDGP_RESULT_OFFLINE 1 /* no media, or otherwise losing */
#define SDGP_RESULT_UNFORMATTED 2 /* unformatted media (max params) */
Add multiple inclusion protection.
2003-01-07 00:02:18 +03:00
#endif /* _DEV_SCSIPI_SDVAR_H_ */