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freebsd-dev/sys/dev/hptrr/os_bsd.h
Alexander Motin 83c5d981ac MFp4: Large set of CAM inprovements. 
- Unify bus reset/probe sequence. Whenever bus attached at boot or later,
CAM will automatically reset and scan it. It allows to remove duplicate
code from many drivers.
- Any bus, attached before CAM completed it's boot-time initialization,
will equally join to the process, delaying boot if needed.
- New kern.cam.boot_delay loader tunable should help controllers that
are still unable to register their buses in time (such as slow USB/
PCCard/ CardBus devices), by adding one more event to wait on boot.
- To allow synchronization between different CAM levels, concept of
requests priorities was extended. Priorities now split between several
"run levels". Device can be freezed at specified level, allowing higher
priority requests to pass. For example, no payload requests allowed,
until PMP driver enable port. ATA XPT negotiate transfer parameters,
periph driver configure caching and so on.
- Frozen requests are no more counted by request allocation scheduler.
It fixes deadlocks, when frozen low priority payload requests occupying
slots, required by higher levels to manage theit execution.
- Two last changes were holding proper ATA reinitialization and error
recovery implementation. Now it is done: SATA controllers and Port
Multipliers now implement automatic hot-plug and should correctly
recover from timeouts and bus resets.
- Improve SCSI error recovery for devices on buses without automatic sense
reporting, such as ATAPI or USB. For example, it allows CAM to wait, while
CD drive loads disk, instead of immediately return error status.
- Decapitalize diagnostic messages and make them more readable and sensible.
- Teach PMP driver to limit maximum speed on fan-out ports.
- Make boot wait for PMP scan completes, and make rescan more reliable.
- Fix pass driver, to return CCB to user level in case of error.
- Increase number of retries in cd driver, as device may return several UAs.
2010-01-28 08:41:30 +00:00

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/*
* Copyright (c) HighPoint Technologies, Inc.
* 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.
*
* $FreeBSD$
*/
#include <dev/hptrr/hptrr_config.h>
/* $Id: os_bsd.h,v 1.18 2006/04/11 08:19:02 gmm Exp $
*
* HighPoint RAID Driver for FreeBSD
* Copyright (C) 2005 HighPoint Technologies, Inc. All Rights Reserved.
*/
#ifndef _OS_BSD_H
#define _OS_BSD_H
#ifndef DBG
#define DBG 0
#endif
#include <sys/param.h>
#include <sys/types.h>
#include <sys/cons.h>
#if (__FreeBSD_version >= 500000)
#include <sys/time.h>
#include <sys/systm.h>
#else
#include <machine/clock.h> /*to support DELAY function under 4.x BSD versions*/
#endif
#include <sys/stat.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/libkern.h>
#include <sys/kernel.h>
#if (__FreeBSD_version >= 500000)
#include <sys/kthread.h>
#include <sys/mutex.h>
#include <sys/module.h>
#endif
#include <sys/eventhandler.h>
#include <sys/bus.h>
#include <sys/taskqueue.h>
#include <sys/ioccom.h>
#include <machine/resource.h>
#include <machine/bus.h>
#include <machine/stdarg.h>
#include <sys/rman.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#if (__FreeBSD_version >= 500000)
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#else
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#endif
#if (__FreeBSD_version <= 500043)
#include <sys/devicestat.h>
#endif
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/cam_periph.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#if (__FreeBSD_version < 500043)
#include <sys/bus_private.h>
#endif
typedef struct _INQUIRYDATA {
u_char DeviceType : 5;
u_char DeviceTypeQualifier : 3;
u_char DeviceTypeModifier : 7;
u_char RemovableMedia : 1;
u_char Versions;
u_char ResponseDataFormat;
u_char AdditionalLength;
u_char Reserved[2];
u_char SoftReset : 1;
u_char CommandQueue : 1;
u_char Reserved2 : 1;
u_char LinkedCommands : 1;
u_char Synchronous : 1;
u_char Wide16Bit : 1;
u_char Wide32Bit : 1;
u_char RelativeAddressing : 1;
u_char VendorId[8];
u_char ProductId[16];
u_char ProductRevisionLevel[4];
u_char VendorSpecific[20];
u_char Reserved3[40];
}
__attribute__((packed))
INQUIRYDATA, *PINQUIRYDATA;
#endif
/* private headers */
#include <dev/hptrr/osm.h>
#include <dev/hptrr/him.h>
#include <dev/hptrr/ldm.h>
/* driver parameters */
extern char driver_name[];
extern char driver_name_long[];
extern char driver_ver[];
extern int osm_max_targets;
/*
* adapter/vbus extensions:
* each physical controller has an adapter_ext, passed to him.create_adapter()
* each vbus has a vbus_ext passed to ldm_create_vbus().
*/
#define EXT_TYPE_HBA 1
#define EXT_TYPE_VBUS 2
typedef struct _hba {
int ext_type;
LDM_ADAPTER ldm_adapter;
device_t pcidev;
PCI_ADDRESS pciaddr;
struct _vbus_ext *vbus_ext;
struct _hba *next;
struct {
struct resource *res;
int type;
int rid;
void *base;
}
pcibar[6];
struct resource *irq_res;
void *irq_handle;
}
HBA, *PHBA;
typedef struct _os_cmdext {
struct _vbus_ext *vbus_ext;
struct _os_cmdext *next;
union ccb *ccb;
bus_dmamap_t dma_map;
SG psg[os_max_sg_descriptors];
}
OS_CMDEXT, *POS_CMDEXT;
typedef struct _vbus_ext {
int ext_type;
struct _vbus_ext *next;
PHBA hba_list;
struct freelist *freelist_head;
struct freelist *freelist_dma_head;
struct cam_sim *sim; /* sim for this vbus */
struct cam_path *path; /* peripheral, path, tgt, lun with this vbus */
#if (__FreeBSD_version >= 500000)
struct mtx lock; /* general purpose lock */
#else
int hpt_splx;
#endif
bus_dma_tag_t io_dmat; /* I/O buffer DMA tag */
POS_CMDEXT cmdext_list;
OSM_TASK *tasks;
struct task worker;
struct callout_handle timer;
eventhandler_tag shutdown_eh;
/* the LDM vbus instance continues */
unsigned long vbus[0] __attribute__((aligned(sizeof(unsigned long))));
}
VBUS_EXT, *PVBUS_EXT;
#if __FreeBSD_version >= 500000
#define hpt_lock_vbus(vbus_ext) mtx_lock(&(vbus_ext)->lock)
#define hpt_unlock_vbus(vbus_ext) mtx_unlock(&(vbus_ext)->lock)
#else
static __inline void hpt_lock_vbus(PVBUS_EXT vbus_ext)
{
vbus_ext->hpt_splx = splcam();
}
static __inline void hpt_unlock_vbus(PVBUS_EXT vbus_ext)
{
splx(vbus_ext->hpt_splx);
}
#endif
#define HPT_OSM_TIMEOUT (20*hz) /* timeout value for OS commands */
#define HPT_DO_IOCONTROL _IOW('H', 0, HPT_IOCTL_PARAM)
#define HPT_SCAN_BUS _IO('H', 1)
#if __FreeBSD_version >= 501000
#define TASK_ENQUEUE(task) taskqueue_enqueue(taskqueue_swi_giant,(task));
#else
#define TASK_ENQUEUE(task) taskqueue_enqueue(taskqueue_swi,(task));
#endif
#if __FreeBSD_version >= 500000
static __inline int hpt_sleep(PVBUS_EXT vbus_ext, void *ident, int priority, const char *wmesg, int timo)
{
return msleep(ident, &vbus_ext->lock, priority, wmesg, timo);
}
#else
static __inline int hpt_sleep(PVBUS_EXT vbus_ext, void *ident, int priority, const char *wmesg, int timo)
{
int retval = 0;
asleep(ident, priority, wmesg, timo);
hpt_unlock_vbus(vbus_ext);
retval = await(priority, timo);
hpt_lock_vbus(vbus_ext);
return retval;
}
#endif
#if __FreeBSD_version < 501000
#define READ_16 0x88
#define WRITE_16 0x8a
#define SERVICE_ACTION_IN 0x9e
#endif
#define HPT_DEV_MAJOR 200
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