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This is a driver for the AMI MegaRAID family of controllers. It all of

Browse source 
the AMI PCI controllers using the 8LD firmware interface (40LD firmware
will be supported as soon as I have hardware to test with).

These controllers are rebadged by Dell as the PERC, as well as by HP
and possibly other vendors.
This commit is contained in:
Mike Smith 1999-10-07 02:23:12 +00:00
parent 1ac4b82b11
commit d5a51e03e7
7 changed files with 2470 additions and 0 deletions
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1498
sys/dev/amr/amr.c Normal file
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299
sys/dev/amr/amr_disk.c Normal file
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/*-
* Copyright (c) 1999 Jonathan Lemon
* Copyright (c) 1999 Michael Smith
* 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.
*
* $FreeBSD$
*/
/*
* Disk driver for AMI MegaRaid controllers
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/buf.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/disk.h>
#include <machine/bus.h>
#include <machine/clock.h>
#include <sys/rman.h>
#include <dev/amr/amrio.h>
#include <dev/amr/amrreg.h>
#include <dev/amr/amrvar.h>
#if 0
#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
#else
#define debug(fmt, args...)
#endif
/* prototypes */
static int amrd_probe(device_t dev);
static int amrd_attach(device_t dev);
static int amrd_detach(device_t dev);
static d_open_t amrd_open;
static d_close_t amrd_close;
static d_strategy_t amrd_strategy;
static d_ioctl_t amrd_ioctl;
#define AMRD_BDEV_MAJOR 35
#define AMRD_CDEV_MAJOR 133
static struct cdevsw amrd_cdevsw = {
/* open */ amrd_open,
/* close */ amrd_close,
/* read */ physread,
/* write */ physwrite,
/* ioctl */ amrd_ioctl,
/* poll */ nopoll,
/* mmap */ nommap,
/* strategy */ amrd_strategy,
/* name */ "amrd",
/* maj */ AMRD_CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ D_DISK,
/* bmaj */ AMRD_BDEV_MAJOR
};
static devclass_t amrd_devclass;
static struct cdevsw amrddisk_cdevsw;
static int disks_registered = 0;
static device_method_t amrd_methods[] = {
DEVMETHOD(device_probe, amrd_probe),
DEVMETHOD(device_attach, amrd_attach),
DEVMETHOD(device_detach, amrd_detach),
{ 0, 0 }
};
static driver_t amrd_driver = {
"amrd",
amrd_methods,
sizeof(struct amrd_softc)
};
DRIVER_MODULE(amrd, amr, amrd_driver, amrd_devclass, 0, 0);
static __inline struct amrd_softc *
amrd_getsoftc(dev_t dev)
{
int unit;
unit = dkunit(dev);
return ((struct amrd_softc *)devclass_get_softc(amrd_devclass, unit));
}
static int
amrd_open(dev_t dev, int flags, int fmt, struct proc *p)
{
struct amrd_softc *sc = amrd_getsoftc(dev);
struct disklabel *label;
debug("called");
if (sc == NULL)
return (ENXIO);
/* controller not active? */
if (sc->amrd_controller->amr_state & AMR_STATE_SHUTDOWN)
return(ENXIO);
label = &sc->amrd_disk.d_label;
bzero(label, sizeof(*label));
label->d_type = DTYPE_SCSI;
label->d_secsize = AMR_BLKSIZE;
label->d_nsectors = sc->amrd_drive->al_sectors;
label->d_ntracks = sc->amrd_drive->al_heads;
label->d_ncylinders = sc->amrd_drive->al_cylinders;
label->d_secpercyl = sc->amrd_drive->al_sectors * sc->amrd_drive->al_heads;
label->d_secperunit = sc->amrd_drive->al_size;
sc->amrd_flags |= AMRD_OPEN;
return (0);
}
static int
amrd_close(dev_t dev, int flags, int fmt, struct proc *p)
{
struct amrd_softc *sc = amrd_getsoftc(dev);
debug("called");
if (sc == NULL)
return (ENXIO);
sc->amrd_flags &= ~AMRD_OPEN;
return (0);
}
static int
amrd_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p)
{
struct amrd_softc *sc = amrd_getsoftc(dev);
int error;
debug("called");
if (sc == NULL)
return (ENXIO);
if ((error = amr_submit_ioctl(sc->amrd_controller, sc->amrd_drive, cmd, addr, flag, p)) != ENOIOCTL) {
debug("amr_submit_ioctl returned %d\n", error);
return(error);
}
return (ENOTTY);
}
/*
* Read/write routine for a buffer. Finds the proper unit, range checks
* arguments, and schedules the transfer. Does not wait for the transfer
* to complete. Multi-page transfers are supported. All I/O requests must
* be a multiple of a sector in length.
*/
static void
amrd_strategy(struct buf *bp)
{
struct amrd_softc *sc = amrd_getsoftc(bp->b_dev);
int s;
debug("called");
/* bogus disk? */
if (sc == NULL) {
bp->b_error = EINVAL;
goto bad;
}
#if 0
/* XXX may only be temporarily offline - sleep? */
if (sc->amrd_drive->ld_state == AMR_SYSD_OFFLINE) {
bp->b_error = ENXIO;
goto bad;
}
#endif
/* do-nothing operation */
if (bp->b_bcount == 0)
goto done;
/* pass reference to us */
bp->b_driver1 = sc;
s = splbio();
devstat_start_transaction(&sc->amrd_stats);
amr_submit_buf(sc->amrd_controller, bp);
splx(s);
return;
bad:
bp->b_flags |= B_ERROR;
done:
/*
* Correctly set the buf to indicate a completed transfer
*/
bp->b_resid = bp->b_bcount;
biodone(bp);
return;
}
void
amrd_intr(void *data)
{
struct buf *bp = (struct buf *)data;
struct amrd_softc *sc = (struct amrd_softc *)bp->b_driver1;
debug("called");
if (bp->b_flags & B_ERROR)
bp->b_error = EIO;
else
bp->b_resid = 0;
devstat_end_transaction_buf(&sc->amrd_stats, bp);
biodone(bp);
}
static int
amrd_probe(device_t dev)
{
debug("called");
device_set_desc(dev, "MegaRAID logical drive");
return (0);
}
static int
amrd_attach(device_t dev)
{
struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
device_t parent;
debug("called");
parent = device_get_parent(dev);
sc->amrd_controller = (struct amr_softc *)device_get_softc(parent);
sc->amrd_unit = device_get_unit(dev);
sc->amrd_drive = device_get_ivars(dev);
device_printf(dev, "%uMB (%u sectors), state 0x%x properties 0x%x\n",
sc->amrd_drive->al_size / ((1024 * 1024) / AMR_BLKSIZE),
sc->amrd_drive->al_size, sc->amrd_drive->al_state, sc->amrd_drive->al_properties);
devstat_add_entry(&sc->amrd_stats, "amrd", sc->amrd_unit, AMR_BLKSIZE,
DEVSTAT_NO_ORDERED_TAGS,
DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_OTHER,
DEVSTAT_PRIORITY_DA);
disk_create(sc->amrd_unit, &sc->amrd_disk, 0, &amrd_cdevsw, &amrddisk_cdevsw);
disks_registered++;
return (0);
}
static int
amrd_detach(device_t dev)
{
struct amrd_softc *sc = (struct amrd_softc *)device_get_softc(dev);
debug("called");
devstat_remove_entry(&sc->amrd_stats);
/* hack to handle lack of destroy_disk() */
if (--disks_registered == 0)
cdevsw_remove(&amrddisk_cdevsw);
return(0);
}

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/*-
* Copyright (c) 1999 Michael Smith
* 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/buf.h>
#include <sys/conf.h>
#include <sys/devicestat.h>
#include <sys/disk.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <pci/pcireg.h>
#include <pci/pcivar.h>
#include <dev/amr/amrio.h>
#include <dev/amr/amrreg.h>
#include <dev/amr/amrvar.h>
#if 0
#define debug(fmt, args...) printf("%s: " fmt "\n", __FUNCTION__ , ##args)
#else
#define debug(fmt, args...)
#endif
static int amr_pci_probe(device_t dev);
static int amr_pci_attach(device_t dev);
static device_method_t amr_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, amr_pci_probe),
DEVMETHOD(device_attach, amr_pci_attach),
DEVMETHOD(device_detach, amr_detach),
DEVMETHOD(device_shutdown, amr_shutdown),
DEVMETHOD(device_suspend, amr_suspend),
DEVMETHOD(device_resume, amr_resume),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t amr_pci_driver = {
"amr",
amr_methods,
sizeof(struct amr_softc)
};
DRIVER_MODULE(amr, pci, amr_pci_driver, amr_devclass, 0, 0);
static struct
{
int vendor;
int device;
int flag;
#define PROBE_SIGNATURE (1<<0)
} amr_device_ids[] = {
{0x101e, 0x9010, 0},
{0x101e, 0x9060, 0},
{0x8086, 0x1960, PROBE_SIGNATURE}, /* generic i960RD, check signature */
{0, 0, 0}
};
static int
amr_pci_probe(device_t dev)
{
int i;
debug("called");
for (i = 0; amr_device_ids[i].vendor != 0; i++) {
if ((pci_get_vendor(dev) == amr_device_ids[i].vendor) &&
(pci_get_device(dev) == amr_device_ids[i].device)) {
/* do we need to test for a signature? */
if ((amr_device_ids[i].flag & PROBE_SIGNATURE) &&
(pci_read_config(dev, AMR_CFG_SIG, 2) != AMR_SIGNATURE))
continue;
device_set_desc(dev, "AMI MegaRAID");
return(0);
}
}
return(ENXIO);
}
static int
amr_pci_attach(device_t dev)
{
struct amr_softc *sc;
int rid, rtype, error;
u_int32_t command;
debug("called");
/*
* Initialise softc.
*/
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->amr_dev = dev;
/*
* Determine board type..
*/
command = pci_read_config(dev, PCIR_COMMAND, 1);
if ((pci_get_vendor(dev) == 0x8086) && (pci_get_device(dev) == 0x1960)) {
sc->amr_type = AMR_TYPE_QUARTZ;
/*
* Make sure we are going to be able to talk to this board.
*/
if ((command & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "memory window not available\n");
return(ENXIO);
}
} else {
sc->amr_type = AMR_TYPE_STD;
/*
* Make sure we are going to be able to talk to this board.
*/
if ((command & PCIM_CMD_PORTEN) == 0) {
device_printf(dev, "I/O window not available\n");
return(ENXIO);
}
}
/*
* Allocate the PCI register window.
*/
rid = AMR_CFG_BASE;
rtype = (sc->amr_type == AMR_TYPE_QUARTZ) ? SYS_RES_MEMORY : SYS_RES_IOPORT;
sc->amr_reg = bus_alloc_resource(dev, rtype, &rid, 0, ~0, 1, RF_ACTIVE);
if (sc->amr_reg == NULL) {
device_printf(sc->amr_dev, "couldn't allocate register window\n");
amr_free(sc);
return(ENXIO);
}
sc->amr_btag = rman_get_bustag(sc->amr_reg);
sc->amr_bhandle = rman_get_bushandle(sc->amr_reg);
/*
* Allocate the parent bus DMA tag appropriate for PCI.
*/
error = bus_dma_tag_create(NULL, /* parent */
1, 0, /* alignment, boundary */
BUS_SPACE_MAXADDR_32BIT, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
MAXBSIZE, AMR_NSEG, /* maxsize, nsegments */
BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
BUS_DMA_ALLOCNOW, /* flags */
&sc->amr_parent_dmat);
if (error != 0) {
device_printf(dev, "can't allocate parent DMA tag\n");
amr_free(sc);
return(ENOMEM);
}
/*
* Do bus-independant initialisation.
*/
error = amr_attach(sc);
if (error != 0) {
amr_free(sc);
return(error);
}
/*
* Start the controller.
*/
amr_startup(sc);
return(0);
}

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/*-
* Copyright (c) 1999 Michael Smith
* 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.
*
* $FreeBSD$
*/

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/*-
* Copyright (c) 1999 Michael Smith
* 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.
*
* $FreeBSD$
*/
/*
* Mailbox commands
*/
#define AMR_CMD_LREAD 0x01
#define AMR_CMD_LWRITE 0x02
#define AMR_CMD_ENQUIRY 0x05
#define AMR_CMD_FLUSH 0x0a
#define AMR_CMD_CONFIG 0xa1
#define AMR_CONFIG_PRODINFO 0x0e
#define AMR_CONFIG_ENQ3 0x0f
#define AMR_CONFIG_ENQ3_SOLICITED_NOTIFY 0x01
#define AMR_CONFIG_ENQ3_SOLICITED_FULL 0x02
#define AMR_CONFIG_ENQ3_UNSOLICITED 0x03
/*
* Command results
*/
#define AMR_STATUS_SUCCESS 0x00
#define AMR_STATUS_ABORTED 0x02
#define AMR_STATUS_FAILED 0x80
/*
* Quartz doorbell registers
*/
#define AMR_QIDB 0x20
#define AMR_QODB 0x2c
#define AMR_QIDB_SUBMIT 0x00000001 /* mailbox ready for work */
#define AMR_QIDB_ACK 0x00000002 /* mailbox done */
#define AMR_QODB_READY 0x10001234 /* work ready to be processed */
/*
* Standard I/O registers
*/
#define AMR_SCMD 0x10 /* command/ack register (write) */
#define AMR_SMBOX_BUSY 0x10 /* mailbox status (read) */
#define AMR_STOGGLE 0x11 /* interrupt enable bit here */
#define AMR_SMBOX_0 0x14 /* mailbox physical address low byte */
#define AMR_SMBOX_1 0x15
#define AMR_SMBOX_2 0x16
#define AMR_SMBOX_3 0x17 /* high byte */
#define AMR_SMBOX_ENABLE 0x18 /* atomic mailbox address enable */
#define AMR_SINTR 0x1a /* interrupt status */
/*
* Standard I/O magic numbers
*/
#define AMR_SCMD_POST 0x10 /* -> SCMD to initiate action on mailbox */
#define AMR_SCMD_ACKINTR 0x08 /* -> SCMD to ack mailbox retrieved */
#define AMR_STOGL_IENABLE 0xc0 /* in STOGGLE */
#define AMR_SINTR_VALID 0x40 /* in SINTR */
#define AMR_SMBOX_BUSYFLAG 0x10 /* in SMBOX_BUSY */
#define AMR_SMBOX_ADDR 0x00 /* -> SMBOX_ENABLE */
/*
* Old Enquiry results
*/
#define AMR_8LD_MAXDRIVES 8
#define AMR_8LD_MAXCHAN 5
#define AMR_8LD_MAXTARG 15
#define AMR_8LD_MAXPHYSDRIVES (AMR_8LD_MAXCHAN * AMR_8LD_MAXTARG)
struct amr_adapter_info
{
u_int8_t aa_maxio;
u_int8_t aa_rebuild_rate;
u_int8_t aa_maxtargchan;
u_int8_t aa_channels;
u_int8_t aa_firmware[4];
u_int16_t aa_flashage;
u_int8_t aa_chipsetvalue;
u_int8_t aa_memorysize;
u_int8_t aa_cacheflush;
u_int8_t aa_bios[4];
u_int8_t res1[7];
} __attribute__ ((packed));
struct amr_logdrive_info
{
u_int8_t al_numdrives;
u_int8_t res1[3];
u_int32_t al_size[AMR_8LD_MAXDRIVES];
u_int8_t al_properties[AMR_8LD_MAXDRIVES];
u_int8_t al_state[AMR_8LD_MAXDRIVES];
} __attribute__ ((packed));
struct amr_physdrive_info
{
u_int8_t ap_state[AMR_8LD_MAXPHYSDRIVES];
u_int8_t res1;
} __attribute__ ((packed));
struct amr_enquiry
{
struct amr_adapter_info ae_adapter;
struct amr_logdrive_info ae_ldrv;
struct amr_physdrive_info ae_pdrv;
} __attribute__ ((packed));
struct amr_prodinfo
{
u_int32_t ap_size; /* current size in bytes (not including resvd) */
u_int32_t ap_configsig; /* default is 0x00282008, indicating 0x28 maximum
* logical drives, 0x20 maximum stripes and 0x08
* maximum spans */
u_int8_t ap_firmware[16]; /* printable identifiers */
u_int8_t ap_bios[16];
u_int8_t ap_product[80];
u_int8_t ap_maxio; /* maximum number of concurrent commands supported */
u_int8_t ap_nschan; /* number of SCSI channels present */
u_int8_t ap_fcloops; /* number of fibre loops present */
u_int8_t ap_memtype; /* memory type */
u_int32_t ap_signature;
u_int16_t ap_memsize; /* onboard memory in MB */
u_int16_t ap_subsystem; /* subsystem identifier */
u_int16_t ap_subvendor; /* subsystem vendor ID */
u_int8_t ap_numnotifyctr; /* number of notify counters */
} __attribute__((packed));
#define AMR_MBOX_CMDSIZE 0x10 /* portion worth copying for controller */
struct amr_mailbox
{
u_int8_t mb_command;
u_int8_t mb_ident;
u_int16_t mb_blkcount;
u_int32_t mb_lba;
u_int32_t mb_physaddr;
u_int8_t mb_drive;
u_int8_t mb_nsgelem;
u_int8_t res1;
u_int8_t mb_busy;
u_int8_t mb_nstatus;
u_int8_t mb_status;
u_int8_t mb_completed[46];
u_int8_t mb_poll;
u_int8_t mb_ack;
u_int8_t res2[16];
} __attribute__ ((packed));
struct amr_mailbox64
{
u_int32_t mb64_segment; /* for 64-bit controllers */
struct amr_mailbox mb;
} __attribute__ ((packed));
struct amr_mailbox_ioctl
{
u_int8_t mb_command;
u_int8_t mb_ident;
u_int8_t mb_channel;
u_int8_t mb_param;
u_int8_t res1[4];
u_int32_t mb_physaddr;
u_int8_t mb_drive;
u_int8_t mb_nsgelem;
u_int8_t res2;
u_int8_t mb_busy;
u_int8_t mb_nstatus;
u_int8_t mb_completed[46];
u_int8_t mb_poll;
u_int8_t mb_ack;
u_int8_t res3[16];
} __attribute__ ((packed));
struct amr_sgentry
{
u_int32_t sg_addr;
u_int32_t sg_count;
} __attribute__ ((packed));

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/*-
* Copyright (c) 1999 Michael Smith
* 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.
*
* $FreeBSD$
*/
/*
* We could actually use all 17 segments, but using only 16 means that
* each scatter/gather map is 128 bytes in size, and thus we don't have to worry about
* maps crossing page boundaries.
*/
#define AMR_NSEG 16
#define AMR_CFG_BASE 0x10
#define AMR_CFG_SIG 0xa0
#define AMR_SIGNATURE 0x3344
#define AMR_MAXCMD 255 /* ident = 0 not allowed */
#define AMR_MAXLD 40
#define AMR_BLKSIZE 512
struct amr_softc;
/*
* Per-logical-drive datastructure
*/
struct amr_logdrive
{
u_int32_t al_size;
int al_state;
int al_properties;
/* synthetic geometry */
int al_cylinders;
int al_heads;
int al_sectors;
/* driver */
device_t al_disk;
};
/*
* Per-command control structure.
*/
struct amr_command
{
TAILQ_ENTRY(amr_command) ac_link;
struct amr_softc *ac_sc;
u_int8_t ac_slot;
int ac_status;
#define AMR_STATUS_BUSY 0xffff
#define AMR_STATUS_WEDGED 0xdead
struct amr_mailbox ac_mailbox;
u_int32_t ac_sgphys;
int ac_nsgent;
int ac_flags;
#define AMR_CMD_DATAIN (1<<0)
#define AMR_CMD_DATAOUT (1<<1)
#define AMR_CMD_PRIORITY (1<<2)
time_t ac_stamp;
void *ac_data;
size_t ac_length;
bus_dmamap_t ac_dmamap;
u_int32_t ac_dataphys;
void (* ac_complete)(struct amr_command *ac);
void *ac_private;
};
struct amr_softc
{
/* bus attachments */
device_t amr_dev;
struct resource *amr_reg; /* control registers */
bus_space_handle_t amr_bhandle;
bus_space_tag_t amr_btag;
bus_dma_tag_t amr_parent_dmat; /* parent DMA tag */
bus_dma_tag_t amr_buffer_dmat; /* data buffer DMA tag */
struct resource *amr_irq; /* interrupt */
void *amr_intr;
/* mailbox */
struct amr_mailbox *amr_mailbox;
struct amr_mailbox64 *amr_mailbox64;
u_int32_t amr_mailboxphys;
bus_dma_tag_t amr_mailbox_dmat;
bus_dmamap_t amr_mailbox_dmamap;
/* scatter/gather lists and their controller-visible mappings */
struct amr_sgentry *amr_sgtable; /* s/g lists */
u_int32_t amr_sgbusaddr; /* s/g table base address in bus space */
bus_dma_tag_t amr_sg_dmat; /* s/g buffer DMA tag */
bus_dmamap_t amr_sg_dmamap; /* map for s/g buffers */
/* controller limits and features */
int amr_maxio; /* maximum number of I/O transactions */
int amr_maxdrives; /* max number of logical drives */
/* connected logical drives */
struct amr_logdrive amr_drive[AMR_MAXLD];
/* controller status */
int amr_state;
#define AMR_STATE_OPEN (1<<0)
#define AMR_STATE_SUSPEND (1<<1)
#define AMR_STATE_INTEN (1<<2)
#define AMR_STATE_SHUTDOWN (1<<3)
/* per-controller queues */
struct buf_queue_head amr_bufq; /* pending I/O */
int amr_waitbufs;
struct amr_command *amr_busycmd[AMR_MAXCMD];
int amr_busycmdcount;
TAILQ_HEAD(,amr_command) amr_donecmds;
int amr_donecmdcount;
TAILQ_HEAD(,amr_command) amr_freecmds;
/* controller type-specific support */
int amr_type;
#define AMR_TYPE_STD 0
#define AMR_TYPE_QUARTZ 1
void (* amr_submit_command)(struct amr_softc *sc);
int (* amr_get_work)(struct amr_softc *sc, struct amr_mailbox *mbsave);
void (* amr_attach_mailbox)(struct amr_softc *sc);
};
/*
* I/O primitives
*/
/* Quartz */
#define AMR_QPUT_IDB(sc, val) bus_space_write_4(sc->amr_btag, sc->amr_bhandle, AMR_QIDB, val)
#define AMR_QGET_IDB(sc) bus_space_read_4 (sc->amr_btag, sc->amr_bhandle, AMR_QIDB)
#define AMR_QPUT_ODB(sc, val) bus_space_write_4(sc->amr_btag, sc->amr_bhandle, AMR_QODB, val)
#define AMR_QGET_ODB(sc) bus_space_read_4 (sc->amr_btag, sc->amr_bhandle, AMR_QODB)
/* Standard */
#define AMR_SPUT_ISTAT(sc, val) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SINTR, val)
#define AMR_SGET_ISTAT(sc) bus_space_read_1 (sc->amr_btag, sc->amr_bhandle, AMR_SINTR)
#define AMR_SACK_INTERRUPT(sc) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SCMD, AMR_SCMD_ACKINTR)
#define AMR_SPOST_COMMAND(sc) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SCMD, AMR_SCMD_POST)
#define AMR_SGET_MBSTAT(sc) bus_space_read_1 (sc->amr_btag, sc->amr_bhandle, AMR_SMBOX_BUSY)
#define AMR_SENABLE_INTR(sc) \
bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE, \
bus_space_read_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE) | AMR_STOGL_IENABLE)
#define AMR_SDISABLE_INTR(sc) \
bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE, \
bus_space_read_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE) & ~AMR_STOGL_IENABLE)
#define AMR_SBYTE_SET(sc, reg, val) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, reg, val)
/*
* Interface between bus connections and driver core.
*/
extern void amr_free(struct amr_softc *sc);
extern int amr_attach(struct amr_softc *sc);
extern void amr_startup(struct amr_softc *sc);
extern void amr_intr(void *data);
extern int amr_detach(device_t dev);
extern int amr_shutdown(device_t dev);
extern int amr_suspend(device_t dev);
extern int amr_resume(device_t dev);
extern d_open_t amr_open;
extern d_close_t amr_close;
extern d_ioctl_t amr_ioctl;
extern devclass_t amr_devclass;
/*
* MegaRAID logical disk driver
*/
struct amrd_softc
{
device_t amrd_dev;
struct amr_softc *amrd_controller;
struct amr_logdrive *amrd_drive;
struct disk amrd_disk;
struct devstat amrd_stats;
struct disklabel amrd_label;
int amrd_unit;
int amrd_flags;
#define AMRD_OPEN (1<<0) /* drive is open (can't shut down) */
};
/*
* Interface between driver core and disk driver (should be using a bus?)
*/
extern int amr_submit_buf(struct amr_softc *sc, struct buf *bp);
extern int amr_submit_ioctl(struct amr_softc *sc, struct amr_logdrive *drive, u_long cmd,
caddr_t addr, int32_t flag, struct proc *p);
extern void amrd_intr(void *data);

22
sys/modules/amr/Makefile Normal file
View file

@ -0,0 +1,22 @@
# $FreeBSD$
S = ${.CURDIR}/../..
.PATH: $S/dev/amr
KMOD = amr
SRCS = amr.c amr_pci.c amr_disk.c device_if.h bus_if.h pci_if.h
CLEANFILES += amr.h device_if.h bus_if.h pci_if.h
CFLAGS += ${DEBUG_FLAGS}
amr.h:
echo "#define NAMR 1" > amr.h
device_if.h: $S/kern/makedevops.pl $S/kern/device_if.m
perl $S/kern/makedevops.pl -h $S/kern/device_if.m
bus_if.h: $S/kern/makedevops.pl $S/kern/bus_if.m
perl $S/kern/makedevops.pl -h $S/kern/bus_if.m
pci_if.h: $S/kern/makedevops.pl $S/pci/pci_if.m
perl $S/kern/makedevops.pl -h $S/pci/pci_if.m
.include <bsd.kmod.mk>