c64069308b
Also fix egregious bug where we would never decrement the islocked recursion counter. I guess this means that we don't recurse on this platform! All of this should go away when we have real lock primitives to use in drivers.
414 lines
11 KiB
C
414 lines
11 KiB
C
/* $NetBSD: isp_netbsd.h,v 1.30 2000/10/16 05:18:15 mjacob Exp $ */
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/*
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* This driver, which is contained in NetBSD in the files:
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*
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* sys/dev/ic/isp.c
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* sys/dev/ic/ic/isp.c
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* sys/dev/ic/ic/isp_inline.h
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* sys/dev/ic/ic/isp_netbsd.c
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* sys/dev/ic/ic/isp_netbsd.h
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* sys/dev/ic/ic/isp_target.c
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* sys/dev/ic/ic/isp_target.h
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* sys/dev/ic/ic/isp_tpublic.h
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* sys/dev/ic/ic/ispmbox.h
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* sys/dev/ic/ic/ispreg.h
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* sys/dev/ic/ic/ispvar.h
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* sys/microcode/isp/asm_sbus.h
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* sys/microcode/isp/asm_1040.h
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* sys/microcode/isp/asm_1080.h
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* sys/microcode/isp/asm_12160.h
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* sys/microcode/isp/asm_2100.h
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* sys/microcode/isp/asm_2200.h
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* sys/pci/isp_pci.c
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* sys/sbus/isp_sbus.c
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*
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* Is being actively maintained by Matthew Jacob (mjacob@netbsd.org).
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* This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris,
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* Linux versions. This tends to be an interesting maintenance problem.
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*
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* Please coordinate with Matthew Jacob on changes you wish to make here.
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*/
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/*
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* NetBSD Specific definitions for the Qlogic ISP Host Adapter
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* Matthew Jacob <mjacob@nas.nasa.gov>
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*/
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/*
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* Copyright (C) 1997, 1998, 1999 National Aeronautics & Space Administration
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _ISP_NETBSD_H
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#define _ISP_NETBSD_H
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/errno.h>
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#include <sys/ioctl.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/buf.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <dev/scsipi/scsi_all.h>
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#include <dev/scsipi/scsipi_all.h>
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#include <dev/scsipi/scsiconf.h>
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#include <dev/scsipi/scsi_message.h>
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#include <dev/scsipi/scsipi_debug.h>
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#include "opt_isp.h"
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#define ISP_PLATFORM_VERSION_MAJOR 1
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#define ISP_PLATFORM_VERSION_MINOR 0
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struct isposinfo {
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struct device _dev;
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struct scsipi_link _link;
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struct scsipi_link _link_b;
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struct scsipi_adapter _adapter;
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int splsaved;
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int mboxwaiting;
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u_int32_t islocked;
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u_int32_t onintstack;
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unsigned int : 30,
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no_mbox_ints : 1,
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blocked : 1;
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union {
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u_int64_t _wwn;
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u_int16_t _discovered[2];
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#define wwn_seed un._wwn
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#define discovered un._discovered
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} un;
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TAILQ_HEAD(, scsipi_xfer) waitq;
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struct callout _restart;
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};
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/*
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* Required Macros/Defines
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*/
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#define INLINE inline
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#define ISP2100_FABRIC 1
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#define ISP2100_SCRLEN 0x400
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#define MEMZERO bzero
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#define MEMCPY(dst, src, amt) bcopy((src), (dst), (amt))
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#define SNPRINTF snprintf
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#define STRNCAT strncat
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#define USEC_DELAY DELAY
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#define NANOTIME_T struct timeval
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#define GET_NANOTIME microtime
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#define GET_NANOSEC(x) (((x)->tv_sec * 1000000 + (x)->tv_usec) * 1000)
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#define NANOTIME_SUB isp_microtime_sub
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#define MAXISPREQUEST(isp) 256
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#ifdef __alpha__
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#define MEMORYBARRIER(isp, type, offset, size) alpha_mb()
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#else
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#define MEMORYBARRIER(isp, type, offset, size)
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#endif
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#define MBOX_ACQUIRE(isp)
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#define MBOX_WAIT_COMPLETE isp_wait_complete
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#define MBOX_NOTIFY_COMPLETE(isp) \
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if (isp->isp_osinfo.mboxwaiting) { \
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isp->isp_osinfo.mboxwaiting = 0; \
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wakeup(&isp->isp_osinfo.mboxwaiting); \
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} \
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isp->isp_mboxbsy = 0
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#define MBOX_RELEASE(isp)
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#ifndef SCSI_GOOD
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#define SCSI_GOOD 0x0
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#endif
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#ifndef SCSI_CHECK
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#define SCSI_CHECK 0x2
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#endif
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#ifndef SCSI_BUSY
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#define SCSI_BUSY 0x8
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#endif
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#ifndef SCSI_QFULL
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#define SCSI_QFULL 0x28
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#endif
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#define XS_T struct scsipi_xfer
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#define XS_CHANNEL(xs) \
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(((int) (xs)->sc_link->scsipi_scsi.channel == SCSI_CHANNEL_ONLY_ONE) ? \
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0 : (xs)->sc_link->scsipi_scsi.channel)
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#define XS_ISP(xs) (xs)->sc_link->adapter_softc
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#define XS_LUN(xs) ((int) (xs)->sc_link->scsipi_scsi.lun)
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#define XS_TGT(xs) ((int) (xs)->sc_link->scsipi_scsi.target)
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#define XS_CDBP(xs) ((caddr_t) (xs)->cmd)
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#define XS_CDBLEN(xs) (xs)->cmdlen
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#define XS_XFRLEN(xs) (xs)->datalen
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#define XS_TIME(xs) (xs)->timeout
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#define XS_RESID(xs) (xs)->resid
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#define XS_STSP(xs) (&(xs)->status)
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#define XS_SNSP(xs) (&(xs)->sense.scsi_sense)
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#define XS_SNSLEN(xs) (sizeof (xs)->sense)
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#define XS_SNSKEY(xs) ((xs)->sense.scsi_sense.flags)
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#define XS_TAG_P(ccb) (((xs)->xs_control & XS_CTL_POLL) != 0)
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#define XS_TAG_TYPE(xs) \
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(((xs)->xs_control & XS_CTL_URGENT) ? REQFLAG_HTAG : \
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((xs)->bp && xs->bp->b_flags & B_ASYNC) ? REQFLAG_STAG : REQFLAG_OTAG)
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#define XS_SETERR(xs, v) (xs)->error = v
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# define HBA_NOERROR XS_NOERROR
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# define HBA_BOTCH XS_DRIVER_STUFFUP
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# define HBA_CMDTIMEOUT XS_TIMEOUT
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# define HBA_SELTIMEOUT XS_SELTIMEOUT
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# define HBA_TGTBSY XS_BUSY
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# define HBA_BUSRESET XS_RESET
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# define HBA_ABORTED XS_DRIVER_STUFFUP
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# define HBA_DATAOVR XS_DRIVER_STUFFUP
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# define HBA_ARQFAIL XS_DRIVER_STUFFUP
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#define XS_ERR(xs) (xs)->error
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#define XS_NOERR(xs) (xs)->error == XS_NOERROR
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#define XS_INITERR(xs) (xs)->error = 0, XS_CMD_S_CLEAR(xs)
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#define XS_SAVE_SENSE(xs, sp) \
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bcopy(sp->req_sense_data, &(xs)->sense, \
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imin(XS_SNSLEN(xs), sp->req_sense_len))
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#define XS_SET_STATE_STAT(a, b, c)
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#define DEFAULT_IID(x) 7
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#define DEFAULT_LOOPID(x) 108
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#define DEFAULT_NODEWWN(isp) (isp)->isp_osinfo.un._wwn
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#define DEFAULT_PORTWWN(isp) (isp)->isp_osinfo.un._wwn
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#define ISP_NODEWWN(isp) FCPARAM(isp)->isp_nodewwn
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#define ISP_PORTWWN(isp) FCPARAM(isp)->isp_portwwn
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#define ISP_UNSWIZZLE_AND_COPY_PDBP(isp, dest, src) \
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if((void *)src != (void *)dest) bcopy(src, dest, sizeof (isp_pdb_t))
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#define ISP_SWIZZLE_ICB(a, b)
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#ifdef __sparc__
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#define ISP_SWIZZLE_REQUEST(a, b) \
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ISP_SBUSIFY_ISPHDR(a, &(b)->req_header); \
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ISP_SBUSIFY_ISPREQ(a, b)
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#define ISP_UNSWIZZLE_RESPONSE(a, b, c) \
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ISP_SBUSIFY_ISPHDR(a, &(b)->req_header)
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#else
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#define ISP_SWIZZLE_REQUEST(a, b)
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#define ISP_UNSWIZZLE_RESPONSE(a, b, c)
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#endif
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#define ISP_SWIZZLE_SNS_REQ(a, b)
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#define ISP_UNSWIZZLE_SNS_RSP(a, b, c)
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#ifdef __sparc__
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#define ISP_SWIZZLE_NVRAM_WORD(isp, rp) \
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{ \
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u_int16_t tmp = *rp >> 8; \
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tmp |= ((*rp & 0xff) << 8); \
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*rp = tmp; \
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}
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#else
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#define ISP_SWIZZLE_NVRAM_WORD(isp, rp)
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#endif
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/*
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* Includes of common header files
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*/
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#include <dev/ic/ispreg.h>
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#include <dev/ic/ispvar.h>
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#include <dev/ic/ispmbox.h>
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/*
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* isp_osinfo definitions, extensions and shorthand.
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*/
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#define isp_name isp_osinfo._dev.dv_xname
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#define isp_unit isp_osinfo._dev.dv_unit
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/*
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* Driver prototypes..
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*/
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void isp_attach __P((struct ispsoftc *));
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void isp_uninit __P((struct ispsoftc *));
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static inline void isp_lock __P((struct ispsoftc *));
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static inline void isp_unlock __P((struct ispsoftc *));
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static inline char *strncat __P((char *, const char *, size_t));
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static inline u_int64_t
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isp_microtime_sub __P((struct timeval *, struct timeval *));
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static void isp_wait_complete __P((struct ispsoftc *));
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/*
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* Driver wide data...
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*/
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/*
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* Locking macros...
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*/
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#define ISP_LOCK isp_lock
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#define ISP_UNLOCK isp_unlock
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#define ISP_ILOCK(x) isp_lock(x); isp->isp_osinfo.onintstack++
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#define ISP_IUNLOCK(x) isp->isp_osinfo.onintstack--; isp_unlock(x)
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/*
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* Platform private flags
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*/
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#define XS_PSTS_INWDOG 0x10000000
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#define XS_PSTS_GRACE 0x20000000
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#define XS_PSTS_ALL 0x30000000
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#define XS_CMD_S_WDOG(xs) (xs)->xs_status |= XS_PSTS_INWDOG
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#define XS_CMD_C_WDOG(xs) (xs)->xs_status &= ~XS_PSTS_INWDOG
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#define XS_CMD_WDOG_P(xs) (((xs)->xs_status & XS_PSTS_INWDOG) != 0)
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#define XS_CMD_S_GRACE(xs) (xs)->xs_status |= XS_PSTS_GRACE
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#define XS_CMD_C_GRACE(xs) (xs)->xs_status &= ~XS_PSTS_GRACE
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#define XS_CMD_GRACE_P(xs) (((xs)->xs_status & XS_PSTS_GRACE) != 0)
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#define XS_CMD_S_DONE(xs) (xs)->xs_status |= XS_STS_DONE
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#define XS_CMD_C_DONE(xs) (xs)->xs_status &= ~XS_STS_DONE
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#define XS_CMD_DONE_P(xs) (((xs)->xs_status & XS_STS_DONE) != 0)
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#define XS_CMD_S_CLEAR(xs) (xs)->xs_status &= ~XS_PSTS_ALL
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/*
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* Platform specific 'inline' or support functions
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*/
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static inline void
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isp_lock(isp)
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struct ispsoftc *isp;
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{
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int s = splbio();
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if (isp->isp_osinfo.islocked++ == 0) {
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isp->isp_osinfo.splsaved = s;
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} else {
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splx(s);
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}
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}
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static inline void
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isp_unlock(isp)
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struct ispsoftc *isp;
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{
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if (isp->isp_osinfo.islocked-- <= 1) {
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isp->isp_osinfo.islocked = 0;
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splx(isp->isp_osinfo.splsaved);
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}
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}
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static inline char *
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strncat(d, s, c)
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char *d;
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const char *s;
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size_t c;
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{
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char *t = d;
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if (c) {
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while (*d)
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d++;
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while ((*d++ = *s++)) {
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if (--c == 0) {
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*d = '\0';
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break;
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}
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}
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}
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return (t);
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}
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static inline u_int64_t
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isp_microtime_sub(b, a)
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struct timeval *b;
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struct timeval *a;
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{
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struct timeval x;
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u_int64_t elapsed;
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timersub(b, a, &x);
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elapsed = GET_NANOSEC(&x);
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if (elapsed == 0)
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elapsed++;
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return (elapsed);
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}
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static inline void
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isp_wait_complete(isp)
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struct ispsoftc *isp;
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{
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if (isp->isp_osinfo.onintstack || isp->isp_osinfo.no_mbox_ints) {
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int usecs = 0;
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while (usecs < 2 * 1000000) {
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(void) isp_intr(isp);
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if (isp->isp_mboxbsy == 0) {
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break;
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}
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USEC_DELAY(500);
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usecs += 500;
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}
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if (isp->isp_mboxbsy != 0) {
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isp_prt(isp, ISP_LOGWARN, "Mailbox Cmd (poll) Timeout");
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}
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} else {
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int rv = 0;
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isp->isp_osinfo.mboxwaiting = 1;
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while (isp->isp_osinfo.mboxwaiting && rv == 0) {
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static struct timeval twosec = { 2, 0 };
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int timo;
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struct timeval tv;
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microtime(&tv);
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timeradd(&tv, &twosec, &tv);
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if ((timo = hzto(&tv)) == 0) {
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timo = 1;
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}
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rv = tsleep(&isp->isp_osinfo.mboxwaiting,
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PRIBIO, "isp_mboxcmd", timo);
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}
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if (rv == EWOULDBLOCK) {
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isp->isp_mboxbsy = 0;
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isp->isp_osinfo.mboxwaiting = 0;
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isp_prt(isp, ISP_LOGWARN, "Mailbox Cmd (intr) Timeout");
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}
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}
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}
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/*
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* Common inline functions
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*/
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#define INLINE inline
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#include <dev/ic/isp_inline.h>
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#if !defined(ISP_DISABLE_FW) && !defined(ISP_COMPILE_FW)
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#define ISP_COMPILE_FW 1
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#endif
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#endif /* _ISP_NETBSD_H */
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