freebsd-dev/sys/dev/hptmv/raid5n.h
Scott Long d2bd3ab995 Import new version of the HPTMV driver from Highpoint. The major change
here is the support for amd64, as well as possible support for PAE.  Many
thanks to Highpoint for continuing to support FreeBSD.

Obtained from:  Steve Chang @ Highpoint
MFC After: 3 days.
2005-09-07 23:33:26 +00:00

126 lines
4.0 KiB
C

/*
* Copyright (c) 2004-2005 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.
*
* $FreeBSD$
*/
#ifdef _RAID5N_
/* OS provided function, call only at initialization time */
extern void * HPTLIBAPI os_alloc_page(_VBUS_ARG0); /* may be cached memory */
extern void * HPTLIBAPI os_alloc_dma_page(_VBUS_ARG0); /* must be non-cached memory */
/* implement if the driver can be unloaded */
void HPTLIBAPI os_free_page(_VBUS_ARG void *p);
void HPTLIBAPI os_free_dma_page(_VBUS_ARG void *p);
typedef void (* HPTLIBAPI xfer_done_fn)(_VBUS_ARG void *tag, int result);
#define DATAXFER_STACK_VAR
#define DATAXFER_INIT_ARG 0
#define dataxfer_init(arg) 0
#define dataxfer_add_item(handle, host, cache, bytes, tocache) \
if (tocache) memcpy((PUCHAR)(cache), (PUCHAR)(host), bytes); \
else memcpy((PUCHAR)(host), (PUCHAR)(cache), bytes)
#define dataxfer_exec(handle, done, tag) done(_VBUS_P tag, 0)
#define dataxfer_poll()
typedef void (* HPTLIBAPI xor_done_fn)(_VBUS_ARG void *tag, int result);
#define XOR_STACK_VAR
#define XOR_INIT_ARG 0
/* DoXor1, DoXor2 provided by platform dependent code */
void HPTLIBAPI DoXor1(ULONG *p0, ULONG *p1, ULONG *p2, UINT nBytes);
void HPTLIBAPI DoXor2(ULONG *p0, ULONG *p2, UINT nBytes);
#define max_xor_way 2
#define xor_init(arg) 0
#define xor_add_item(handle, dest, src, nsrc, bytes) \
do {\
if (((void**)src)[0]==dest)\
DoXor2((PULONG)(dest), ((PULONG *)src)[1], bytes);\
else\
DoXor1((PULONG)(dest), ((PULONG *)src)[0], ((PULONG *)src)[1], bytes);\
} while(0)
#define xor_exec(handle, done, tag) done(_VBUS_P tag, 0)
#define xor_poll()
/* set before calling init_raid5_memory */
extern UINT num_raid5_pages;
/* called by init.c */
extern void HPTLIBAPI init_raid5_memory(_VBUS_ARG0);
extern void HPTLIBAPI free_raid5_memory(_VBUS_ARG0);
/* asynchronous flush, may be called periodly */
extern void HPTLIBAPI flush_stripe_cache(_VBUS_ARG0);
extern void HPTLIBAPI flush_raid5_async(PVDevice pArray, DPC_PROC done, void *arg);
/* synchronous function called at shutdown */
extern int HPTLIBAPI flush_raid5(PVDevice pArray);
extern void HPTLIBAPI raid5_free(_VBUS_ARG PVDevice pArray);
struct free_heap_block {
struct free_heap_block *next;
};
#ifndef LIST_H_INCLUDED
struct list_head {
struct list_head *next, *prev;
};
#endif
struct free_page {
struct free_page *link;
};
struct r5_global_data {
int enable_write_back;
struct list_head inactive_list;
struct list_head dirty_list;
struct list_head active_list;
#ifdef R5_CONTIG_CACHE
BUS_ADDR page_base_phys;
PUCHAR page_base_virt;
PUCHAR page_current;
#endif
struct free_heap_block *free_heap_slots[10];
struct free_page *free_pages;
UINT num_free_pages;
UINT active_stripes;
UINT num_flushing;
PCommand cache_wait_list;
LBA_T __start[MAX_MEMBERS];
USHORT __sectors[MAX_MEMBERS];
};
#endif