1
0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-25 11:37:56 +00:00
freebsd/sys/dev/aac/aac_ioctl.h
Mike Smith 0b94a66e3f Major bugfix and minor update. This should resolve the current issues
with the driver locking up under load.

 - Restructure so that we use a static pool of commands/FIBs, rather than
   allocating them in clusters.  The cluster allocation just made things
   more complicated, and allowed us to waste more memory in peak load
   situations.
 - Make queueing macros more like my other drivers.  This adds queue stats
   for free.  Add some debugging to take advantage of this.
 - Reimplement the periodic timeout scan.  Kick the interrupt handler
   and the start routine every scan as well, just to be safe.  Track busy
   commands properly.
 - Bring resource cleanup into line with resource allocation.  We should
   now clean up correctly after a failed probe/unload/etc.
 - Try to start new commands when old ones are completed.  We weren't doing
   this before, which could lead to deadlock when the controller was full.
 - Don't try to build a new command if we have found a deferred command.
   This could cause us to lose the deferred command.
 - Use diskerr() to report I/O errors.
 - Don't bail if the AdapterInfo structure is the wrong size.  Some variation
   seems to be normal.  We need to improve our handing of 2.x firmware sets.
 - Improve some comments in an attempt to try to make things clearer.
 - Restructure to avoid some warnings.
2000-12-27 13:14:56 +00:00

104 lines
3.5 KiB
C

/*-
* Copyright (c) 2000 Michael Smith
* Copyright (c) 2000 Scott Long
* Copyright (c) 2000 BSDi
* 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, 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.
*
* 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.
*
* $FreeBSD$
*/
/*
* Command queue statistics
*/
#define AACQ_FREE 0
#define AACQ_BIO 1
#define AACQ_READY 2
#define AACQ_BUSY 3
#define AACQ_COMPLETE 4
#define AACQ_COUNT 5 /* total number of queues */
struct aac_qstat {
u_int32_t q_length;
u_int32_t q_max;
};
/*
* Statistics request
*/
union aac_statrequest {
u_int32_t as_item;
struct aac_qstat as_qstat;
};
#define AACIO_STATS _IOWR('T', 101, union aac_statrequest)
#ifdef AAC_COMPAT_LINUX
/*
* Ioctl commands likely to be submitted from a Linux management application.
* These bit encodings are actually descended from Windows NT. Ick.
*/
#define CTL_CODE(devType, func, meth, acc) (((devType) << 16) | ((acc) << 14) | ((func) << 2) | (meth))
#define METHOD_BUFFERED 0
#define METHOD_IN_DIRECT 1
#define METHOD_OUT_DIRECT 2
#define METHOD_NEITHER 3
#define FILE_ANY_ACCESS 0
#define FILE_READ_ACCESS ( 0x0001 )
#define FILE_WRITE_ACCESS ( 0x0002 )
#define FILE_DEVICE_CONTROLLER 0x00000004
#define FSACTL_SENDFIB CTL_CODE(FILE_DEVICE_CONTROLLER, 2050, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSACTL_AIF_THREAD CTL_CODE(FILE_DEVICE_CONTROLLER, 2127, METHOD_NEITHER, FILE_ANY_ACCESS)
#define FSACTL_OPEN_GET_ADAPTER_FIB CTL_CODE(FILE_DEVICE_CONTROLLER, 2100, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSACTL_GET_NEXT_ADAPTER_FIB CTL_CODE(FILE_DEVICE_CONTROLLER, 2101, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSACTL_CLOSE_GET_ADAPTER_FIB CTL_CODE(FILE_DEVICE_CONTROLLER, 2102, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define FSACTL_MINIPORT_REV_CHECK CTL_CODE(FILE_DEVICE_CONTROLLER, 2107, METHOD_BUFFERED, FILE_ANY_ACCESS)
/*
* Support for faking the "miniport" version.
*/
struct aac_rev_check {
RevComponent callingComponent;
struct FsaRevision callingRevision;
};
struct aac_rev_check_resp {
int possiblyCompatible;
struct FsaRevision adapterSWRevision;
};
/*
* Context passed in by a consumer looking to collect an AIF.
*/
#define AAC_AIF_SILLYMAGIC 0xdeadbeef
struct get_adapter_fib_ioctl {
u_int32_t AdapterFibContext;
int Wait;
caddr_t AifFib;
};
#endif