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freebsd-nq/sys/dev/twe/twe_compat.h

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Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
/*-
* Copyright (c) 2000 Michael Smith
After extensive QA cycles at 3ware, bring the driver in-line with all the issues which they found and asked to be changed so 3ware can offcially support the driver. Summary of the most significant changes: - TWE_OVERRIDE is no longer supported - If twe_getparam failed, bogus data would be returned to the caller - Cache the device unit in the twe_drive structure to aid debugging - Add the 3ware driver version. - Proper return error codes for many functions. - Track the minimum queue length statistics - 4.x compat: use the cached unit number from the twe_drive structure instead of the the cached si_drv2. 3ware found that after many loads and unloads that si_drv2 became corrupted. This did not happen in -current. Submitted by: Vinod Kashyap (with modifications by me) Approved by: re (rwatson)
2003-12-02 07:57:20 +00:00
* Copyright (c) 2003 Paul Saab
* Copyright (c) 2003 Vinod Kashyap
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
* 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.
*
* $FreeBSD$
*/
/*
* Portability and compatibility interfaces.
*/
#ifdef __FreeBSD__
/******************************************************************************
* FreeBSD
*/
#define TWE_SUPPORTED_PLATFORM
#include <sys/param.h>
Fix the busdma support in twe to support EINPROGRESS and enable it for use with PAE kernels.
2003-08-12 06:38:55 +00:00
#include <sys/endian.h>
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
Add missing <sys/module.h> includes
2004-05-30 20:08:47 +00:00
#include <sys/module.h>
Properly support the 3ware generic API. - Build SGL's for ATA_PASSTHROUGH commands - Fallback to using the sgl_offset when the opcode is unknown for building SGL's/ - Add ioctl calls for adding and removing units. - Define previously undefined AEN's - Allocate memory for the ioctl payload in multiples of 512bytes. MFC after: 1 week
2003-08-05 19:55:21 +00:00
#include <sys/sysctl.h>
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/disk.h>
#include <sys/stat.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
Prefer new location of pci include files (which have only been in the tree for two or more years now), except in a few places where there's code to be compatible with older versions of FreeBSD.
2003-08-22 07:08:17 +00:00
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
#define TWE_DRIVER_NAME twe
#define TWED_DRIVER_NAME twed
#define TWE_MALLOC_CLASS M_TWE
/*
* Wrappers for bus-space actions
*/
Fix instances of macros with improperly parenthasized arguments. Verified by: md5
2002-11-09 12:55:07 +00:00
#define TWE_CONTROL(sc, val) bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x0, (u_int32_t)val)
#define TWE_STATUS(sc) (u_int32_t)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0x4)
#define TWE_COMMAND_QUEUE(sc, val) bus_space_write_4((sc)->twe_btag, (sc)->twe_bhandle, 0x8, (u_int32_t)val)
#define TWE_RESPONSE_QUEUE(sc) (TWE_Response_Queue)bus_space_read_4((sc)->twe_btag, (sc)->twe_bhandle, 0xc)
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
/*
* FreeBSD-specific softc elements
*/
#define TWE_PLATFORM_SOFTC \
Fix the busdma support in twe to support EINPROGRESS and enable it for use with PAE kernels.
2003-08-12 06:38:55 +00:00
bus_dmamap_t twe_cmdmap; /* DMA map for command */ \
u_int32_t twe_cmdphys; /* address of command in controller space */ \
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
device_t twe_dev; /* bus device */ \
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
struct cdev *twe_dev_t; /* control device */ \
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
struct resource *twe_io; /* register interface window */ \
bus_space_handle_t twe_bhandle; /* bus space handle */ \
bus_space_tag_t twe_btag; /* bus space tag */ \
bus_dma_tag_t twe_parent_dmat; /* parent DMA tag */ \
bus_dma_tag_t twe_buffer_dmat; /* data buffer DMA tag */ \
Fix the busdma support in twe to support EINPROGRESS and enable it for use with PAE kernels.
2003-08-12 06:38:55 +00:00
bus_dma_tag_t twe_cmd_dmat; /* command buffer DMA tag */ \
bus_dma_tag_t twe_immediate_dmat; /* command buffer DMA tag */ \
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
struct resource *twe_irq; /* interrupt */ \
void *twe_intr; /* interrupt handle */ \
Properly support the 3ware generic API. - Build SGL's for ATA_PASSTHROUGH commands - Fallback to using the sgl_offset when the opcode is unknown for building SGL's/ - Add ioctl calls for adding and removing units. - Define previously undefined AEN's - Allocate memory for the ioctl payload in multiples of 512bytes. MFC after: 1 week
2003-08-05 19:55:21 +00:00
struct intr_config_hook twe_ich; /* delayed-startup hook */ \
Fix the busdma support in twe to support EINPROGRESS and enable it for use with PAE kernels.
2003-08-12 06:38:55 +00:00
void *twe_cmd; /* command structures */ \
void *twe_immediate; /* immediate commands */ \
bus_dmamap_t twe_immediate_map; \
Properly support the 3ware generic API. - Build SGL's for ATA_PASSTHROUGH commands - Fallback to using the sgl_offset when the opcode is unknown for building SGL's/ - Add ioctl calls for adding and removing units. - Define previously undefined AEN's - Allocate memory for the ioctl payload in multiples of 512bytes. MFC after: 1 week
2003-08-05 19:55:21 +00:00
struct sysctl_ctx_list sysctl_ctx; \
struct sysctl_oid *sysctl_tree;
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
/*
* FreeBSD-specific request elements
*/
#define TWE_PLATFORM_REQUEST \
bus_dmamap_t tr_dmamap; /* DMA map for data */ \
u_int32_t tr_dataphys; /* data buffer base address in controller space */
/*
* Output identifying the controller/disk
*/
#define twe_printf(sc, fmt, args...) device_printf(sc->twe_dev, fmt , ##args)
#define twed_printf(twed, fmt, args...) device_printf(twed->twed_dev, fmt , ##args)
Minor updates: - Rework of twe_report_request to use the command status value rather than the flags register. (Joel Jacobson @ 3ware) - Update to match some changes in -current vs. stable. MFC in: 1 week
2001-05-07 21:46:44 +00:00
#if __FreeBSD_version < 500003
# include <machine/clock.h>
# define INTR_ENTROPY 0
After extensive QA cycles at 3ware, bring the driver in-line with all the issues which they found and asked to be changed so 3ware can offcially support the driver. Summary of the most significant changes: - TWE_OVERRIDE is no longer supported - If twe_getparam failed, bogus data would be returned to the caller - Cache the device unit in the twe_drive structure to aid debugging - Add the 3ware driver version. - Proper return error codes for many functions. - Track the minimum queue length statistics - 4.x compat: use the cached unit number from the twe_drive structure instead of the the cached si_drv2. 3ware found that after many loads and unloads that si_drv2 became corrupted. This did not happen in -current. Submitted by: Vinod Kashyap (with modifications by me) Approved by: re (rwatson)
2003-12-02 07:57:20 +00:00
# define FREEBSD_4
Minor updates: - Rework of twe_report_request to use the command status value rather than the flags register. (Joel Jacobson @ 3ware) - Update to match some changes in -current vs. stable. MFC in: 1 week
2001-05-07 21:46:44 +00:00
# include <sys/buf.h> /* old buf style */
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
typedef struct buf twe_bio;
typedef struct buf_queue_head twe_bioq;
# define TWE_BIO_QINIT(bq) bufq_init(&bq);
# define TWE_BIO_QINSERT(bq, bp) bufq_insert_tail(&bq, bp)
# define TWE_BIO_QFIRST(bq) bufq_first(&bq)
# define TWE_BIO_QREMOVE(bq, bp) bufq_remove(&bq, bp)
# define TWE_BIO_IS_READ(bp) ((bp)->b_flags & B_READ)
# define TWE_BIO_DATA(bp) (bp)->b_data
# define TWE_BIO_LENGTH(bp) (bp)->b_bcount
# define TWE_BIO_LBA(bp) (bp)->b_pblkno
# define TWE_BIO_SOFTC(bp) (bp)->b_dev->si_drv1
# define TWE_BIO_UNIT(bp) *(int *)((bp)->b_dev->si_drv2)
# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->b_error = err; (bp)->b_flags |= B_ERROR;} while(0)
# define TWE_BIO_HAS_ERROR(bp) ((bp)->b_flags & B_ERROR)
# define TWE_BIO_RESID(bp) (bp)->b_resid
# define TWE_BIO_DONE(bp) biodone(bp)
# define TWE_BIO_STATS_START(bp) devstat_start_transaction(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats)
# define TWE_BIO_STATS_END(bp) devstat_end_transaction_buf(&((struct twed_softc *)TWE_BIO_SOFTC(bp))->twed_stats, bp)
#else
# include <sys/bio.h>
After extensive QA cycles at 3ware, bring the driver in-line with all the issues which they found and asked to be changed so 3ware can offcially support the driver. Summary of the most significant changes: - TWE_OVERRIDE is no longer supported - If twe_getparam failed, bogus data would be returned to the caller - Cache the device unit in the twe_drive structure to aid debugging - Add the 3ware driver version. - Proper return error codes for many functions. - Track the minimum queue length statistics - 4.x compat: use the cached unit number from the twe_drive structure instead of the the cached si_drv2. 3ware found that after many loads and unloads that si_drv2 became corrupted. This did not happen in -current. Submitted by: Vinod Kashyap (with modifications by me) Approved by: re (rwatson)
2003-12-02 07:57:20 +00:00
# include <geom/geom_disk.h>
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
typedef struct bio twe_bio;
typedef struct bio_queue_head twe_bioq;
# define TWE_BIO_QINIT(bq) bioq_init(&bq);
# define TWE_BIO_QINSERT(bq, bp) bioq_insert_tail(&bq, bp)
# define TWE_BIO_QFIRST(bq) bioq_first(&bq)
# define TWE_BIO_QREMOVE(bq, bp) bioq_remove(&bq, bp)
# define TWE_BIO_IS_READ(bp) ((bp)->bio_cmd == BIO_READ)
# define TWE_BIO_DATA(bp) (bp)->bio_data
# define TWE_BIO_LENGTH(bp) (bp)->bio_bcount
# define TWE_BIO_LBA(bp) (bp)->bio_pblkno
NO_GEOM cleanup: Move to new "struct disk *" centric API. Retire major #147 (twed)
2003-02-25 07:41:51 +00:00
# define TWE_BIO_SOFTC(bp) (bp)->bio_disk->d_drv1
Fix a bug I introduced by overlooking the fact that "unit number" can be one of several things in this driver. Spotted & Tested by: alfred
2003-03-15 12:16:33 +00:00
# define TWE_BIO_UNIT(bp) *(int *)(bp->bio_driver1)
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
# define TWE_BIO_SET_ERROR(bp, err) do { (bp)->bio_error = err; (bp)->bio_flags |= BIO_ERROR;} while(0)
# define TWE_BIO_HAS_ERROR(bp) ((bp)->bio_flags & BIO_ERROR)
# define TWE_BIO_RESID(bp) (bp)->bio_resid
# define TWE_BIO_DONE(bp) biodone(bp)
Centralize the devstat handling for all GEOM disk device drivers in geom_disk.c. As a side effect this makes a lot of #include <sys/devicestat.h> lines not needed and some biofinish() calls can be reduced to biodone() again.
2003-03-08 08:01:31 +00:00
# define TWE_BIO_STATS_START(bp)
# define TWE_BIO_STATS_END(bp)
Major update to the 'twe' driver. - Layout reorganisation to enhance portability. The driver now has a relatively MI 'core' and a FreeBSD-specific layer over the top. Since the NetBSD people have already done their own port, this is largely just to help me with the BSD/OS port. - Request ID allocation changed to improve performance (I'd been considering switching to this approach after having failed to come up with a better way to dynamically allocate request IDs, and seeing Andy Doran use it in the NetBSD port of the driver convinced me that I was wasting my time doing it any other way). Now we just allocate all the requests up front. - Maximum request count bumped back to 255 after characterisation of a firmware issue (off-by-one causing it to crash with 256 outstanding commands). - Control interface implemented. This allows 3ware's '3dm' utility to talk to the controller. 3dm will be available from 3ware shortly. - Controller soft-reset feature added; if the controller signals a firmware or protocol error, the controller will be reset and all outstanding commands will be retried.
2000-10-25 06:59:06 +00:00
#endif
#endif /* FreeBSD */
#ifndef TWE_SUPPORTED_PLATFORM
#error platform not supported
#endif
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