562 lines
14 KiB
C
562 lines
14 KiB
C
/* $NetBSD: isp_netbsd.c,v 1.15 1999/07/05 20:31:36 mjacob Exp $ */
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/* release_6_5_99 */
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/*
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* Platform (NetBSD) dependent common attachment code for Qlogic adapters.
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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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#include <dev/ic/isp_netbsd.h>
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static void ispminphys __P((struct buf *));
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static int32_t ispcmd __P((ISP_SCSI_XFER_T *));
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static struct scsipi_device isp_dev = { NULL, NULL, NULL, NULL };
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static int isp_poll __P((struct ispsoftc *, ISP_SCSI_XFER_T *, int));
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static void isp_watch __P((void *));
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static void isp_internal_restart __P((void *));
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#define FC_OPENINGS RQUEST_QUEUE_LEN / (MAX_FC_TARG-1)
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#define PI_OPENINGS RQUEST_QUEUE_LEN / (MAX_TARGETS-1)
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/*
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* Complete attachment of hardware, include subdevices.
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*/
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void
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isp_attach(isp)
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struct ispsoftc *isp;
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{
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isp->isp_osinfo._adapter.scsipi_cmd = ispcmd;
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isp->isp_osinfo._adapter.scsipi_minphys = ispminphys;
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isp->isp_state = ISP_RUNSTATE;
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isp->isp_osinfo._link.scsipi_scsi.channel = SCSI_CHANNEL_ONLY_ONE;
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isp->isp_osinfo._link.adapter_softc = isp;
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isp->isp_osinfo._link.device = &isp_dev;
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isp->isp_osinfo._link.adapter = &isp->isp_osinfo._adapter;
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TAILQ_INIT(&isp->isp_osinfo.waitq);
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if (IS_FC(isp)) {
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/*
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* Give it another chance here to come alive...
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*/
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fcparam *fcp = isp->isp_param;
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if (fcp->isp_fwstate != FW_READY) {
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(void) isp_control(isp, ISPCTL_FCLINK_TEST, NULL);
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}
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isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_FC_TARG-1;
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#ifdef ISP2100_SCCLUN
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/*
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* 16 bits worth, but let's be reasonable..
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*/
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isp->isp_osinfo._link.scsipi_scsi.max_lun = 255;
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#else
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isp->isp_osinfo._link.scsipi_scsi.max_lun = 15;
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#endif
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isp->isp_osinfo._link.openings = FC_OPENINGS;
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isp->isp_osinfo._link.scsipi_scsi.adapter_target =
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((fcparam *)isp->isp_param)->isp_loopid;
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} else {
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sdparam *sdp = isp->isp_param;
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isp->isp_osinfo._link.openings = PI_OPENINGS;
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isp->isp_osinfo._link.scsipi_scsi.max_target = MAX_TARGETS-1;
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if (isp->isp_bustype == ISP_BT_SBUS) {
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isp->isp_osinfo._link.scsipi_scsi.max_lun = 7;
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} else {
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/*
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* Too much target breakage at present.
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*/
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#if 0
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if (isp->isp_fwrev >= ISP_FW_REV(7,55,0))
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isp->isp_osinfo._link.scsipi_scsi.max_lun = 31;
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else
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#endif
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isp->isp_osinfo._link.scsipi_scsi.max_lun = 7;
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}
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isp->isp_osinfo._link.scsipi_scsi.adapter_target =
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sdp->isp_initiator_id;
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if (IS_12X0(isp)) {
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isp->isp_osinfo._link_b = isp->isp_osinfo._link;
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sdp++;
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isp->isp_osinfo._link_b.scsipi_scsi.adapter_target =
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sdp->isp_initiator_id;
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isp->isp_osinfo._link_b.scsipi_scsi.channel = 1;
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}
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}
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if (isp->isp_osinfo._link.openings < 2)
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isp->isp_osinfo._link.openings = 2;
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isp->isp_osinfo._link.type = BUS_SCSI;
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/*
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* Send a SCSI Bus Reset (used to be done as part of attach,
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* but now left to the OS outer layers).
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*/
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if (IS_SCSI(isp)) {
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int bus = 0;
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(void) isp_control(isp, ISPCTL_RESET_BUS, &bus);
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if (IS_12X0(isp)) {
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bus++;
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(void) isp_control(isp, ISPCTL_RESET_BUS, &bus);
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}
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SYS_DELAY(2*1000000);
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}
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/*
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* Start the watchdog.
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*/
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isp->isp_dogactive = 1;
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timeout(isp_watch, isp, 30 * hz);
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/*
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* And attach children (if any).
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*/
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config_found((void *)isp, &isp->isp_osinfo._link, scsiprint);
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if (IS_12X0(isp)) {
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config_found((void *)isp, &isp->isp_osinfo._link_b, scsiprint);
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}
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}
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/*
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* minphys our xfers
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*
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* Unfortunately, the buffer pointer describes the target device- not the
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* adapter device, so we can't use the pointer to find out what kind of
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* adapter we are and adjust accordingly.
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*/
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static void
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ispminphys(bp)
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struct buf *bp;
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{
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/*
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* XX: Only the 1020 has a 24 bit limit.
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*/
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if (bp->b_bcount >= (1 << 24)) {
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bp->b_bcount = (1 << 24);
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}
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minphys(bp);
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}
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static int
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ispcmd(xs)
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ISP_SCSI_XFER_T *xs;
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{
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struct ispsoftc *isp;
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int result;
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int s;
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isp = XS_ISP(xs);
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s = splbio();
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/*
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* This is less efficient than I would like in that the
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* majority of cases will have to do some pointer deferences
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* to find out that things don't need to be updated.
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*/
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if ((xs->flags & SCSI_AUTOCONF) == 0 && (isp->isp_type & ISP_HA_SCSI)) {
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sdparam *sdp = isp->isp_param;
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sdp += XS_CHANNEL(xs);
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if (sdp->isp_devparam[XS_TGT(xs)].dev_flags !=
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sdp->isp_devparam[XS_TGT(xs)].cur_dflags) {
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u_int16_t f = DPARM_WIDE|DPARM_SYNC|DPARM_TQING;
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if (xs->sc_link->quirks & SDEV_NOSYNC)
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f &= ~DPARM_SYNC;
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if (xs->sc_link->quirks & SDEV_NOWIDE)
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f &= ~DPARM_WIDE;
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if (xs->sc_link->quirks & SDEV_NOTAG)
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f &= ~DPARM_TQING;
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sdp->isp_devparam[XS_TGT(xs)].dev_flags &=
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~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING);
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sdp->isp_devparam[XS_TGT(xs)].dev_flags |= f;
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sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
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isp->isp_update |= (1 << XS_CHANNEL(xs));
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}
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}
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if (isp->isp_state < ISP_RUNSTATE) {
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DISABLE_INTS(isp);
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isp_init(isp);
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if (isp->isp_state != ISP_INITSTATE) {
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ENABLE_INTS(isp);
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(void) splx(s);
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XS_SETERR(xs, HBA_BOTCH);
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return (CMD_COMPLETE);
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}
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isp->isp_state = ISP_RUNSTATE;
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ENABLE_INTS(isp);
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}
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/*
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* Check for queue blockage...
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*/
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if (isp->isp_osinfo.blocked) {
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if (xs->flags & SCSI_POLL) {
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xs->error = XS_DRIVER_STUFFUP;
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splx(s);
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return (TRY_AGAIN_LATER);
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}
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TAILQ_INSERT_TAIL(&isp->isp_osinfo.waitq, xs, adapter_q);
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splx(s);
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return (CMD_QUEUED);
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}
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DISABLE_INTS(isp);
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result = ispscsicmd(xs);
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ENABLE_INTS(isp);
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if (result != CMD_QUEUED || (xs->flags & SCSI_POLL) == 0) {
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(void) splx(s);
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return (result);
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}
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/*
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* If we can't use interrupts, poll on completion.
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*/
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if (isp_poll(isp, xs, XS_TIME(xs))) {
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/*
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* If no other error occurred but we didn't finish,
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* something bad happened.
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*/
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if (XS_IS_CMD_DONE(xs) == 0) {
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isp->isp_nactive--;
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if (isp->isp_nactive < 0)
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isp->isp_nactive = 0;
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if (XS_NOERR(xs)) {
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isp_lostcmd(isp, xs);
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XS_SETERR(xs, HBA_BOTCH);
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}
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}
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}
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(void) splx(s);
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return (CMD_COMPLETE);
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}
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static int
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isp_poll(isp, xs, mswait)
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struct ispsoftc *isp;
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ISP_SCSI_XFER_T *xs;
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int mswait;
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{
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while (mswait) {
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/* Try the interrupt handling routine */
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(void)isp_intr((void *)isp);
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/* See if the xs is now done */
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if (XS_IS_CMD_DONE(xs)) {
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return (0);
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}
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SYS_DELAY(1000); /* wait one millisecond */
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mswait--;
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}
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return (1);
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}
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static void
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isp_watch(arg)
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void *arg;
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{
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int i;
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struct ispsoftc *isp = arg;
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ISP_SCSI_XFER_T *xs;
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ISP_ILOCKVAL_DECL;
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/*
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* Look for completely dead commands (but not polled ones).
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*/
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ISP_ILOCK(isp);
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for (i = 0; i < RQUEST_QUEUE_LEN; i++) {
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if ((xs = (ISP_SCSI_XFER_T *) isp->isp_xflist[i]) == NULL) {
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continue;
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}
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if (XS_TIME(xs) == 0) {
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continue;
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}
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XS_TIME(xs) -= (WATCH_INTERVAL * 1000);
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/*
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* Avoid later thinking that this
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* transaction is not being timed.
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* Then give ourselves to watchdog
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* periods of grace.
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*/
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if (XS_TIME(xs) == 0) {
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XS_TIME(xs) = 1;
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} else if (XS_TIME(xs) > -(2 * WATCH_INTERVAL * 1000)) {
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continue;
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}
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if (isp_control(isp, ISPCTL_ABORT_CMD, xs)) {
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printf("%s: isp_watch failed to abort command\n",
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isp->isp_name);
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isp_restart(isp);
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break;
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}
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}
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timeout(isp_watch, isp, WATCH_INTERVAL * hz);
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isp->isp_dogactive = 1;
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ISP_IUNLOCK(isp);
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}
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/*
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* Free any associated resources prior to decommissioning and
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* set the card to a known state (so it doesn't wake up and kick
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* us when we aren't expecting it to).
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*
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* Locks are held before coming here.
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*/
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void
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isp_uninit(isp)
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struct ispsoftc *isp;
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{
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ISP_ILOCKVAL_DECL;
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ISP_ILOCK(isp);
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/*
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* Leave with interrupts disabled.
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*/
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DISABLE_INTS(isp);
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/*
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* Turn off the watchdog (if active).
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*/
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if (isp->isp_dogactive) {
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untimeout(isp_watch, isp);
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isp->isp_dogactive = 0;
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}
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ISP_IUNLOCK(isp);
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}
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/*
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* Restart function after a LOOP UP event (e.g.),
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* done as a timeout for some hysteresis.
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*/
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static void
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isp_internal_restart(arg)
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void *arg;
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{
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struct ispsoftc *isp = arg;
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int result, nrestarted = 0, s;
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s = splbio();
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if (isp->isp_osinfo.blocked == 0) {
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struct scsipi_xfer *xs;
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while ((xs = TAILQ_FIRST(&isp->isp_osinfo.waitq)) != NULL) {
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TAILQ_REMOVE(&isp->isp_osinfo.waitq, xs, adapter_q);
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DISABLE_INTS(isp);
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result = ispscsicmd(xs);
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ENABLE_INTS(isp);
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if (result != CMD_QUEUED) {
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printf("%s: botched command restart (0x%x)\n",
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isp->isp_name, result);
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xs->flags |= ITSDONE;
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if (xs->error == XS_NOERROR)
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xs->error = XS_DRIVER_STUFFUP;
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scsipi_done(xs);
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}
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nrestarted++;
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}
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printf("%s: requeued %d commands\n", isp->isp_name, nrestarted);
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}
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(void) splx(s);
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}
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int
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isp_async(isp, cmd, arg)
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struct ispsoftc *isp;
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ispasync_t cmd;
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void *arg;
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{
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int bus, tgt;
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int s = splbio();
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switch (cmd) {
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case ISPASYNC_NEW_TGT_PARAMS:
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if (isp->isp_type & ISP_HA_SCSI) {
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sdparam *sdp = isp->isp_param;
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char *wt;
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int mhz, flags, period;
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tgt = *((int *) arg);
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bus = (tgt >> 16) & 0xffff;
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tgt &= 0xffff;
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flags = sdp->isp_devparam[tgt].cur_dflags;
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period = sdp->isp_devparam[tgt].cur_period;
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if ((flags & DPARM_SYNC) && period &&
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(sdp->isp_devparam[tgt].cur_offset) != 0) {
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if (sdp->isp_lvdmode) {
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switch (period) {
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case 0xa:
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mhz = 40;
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break;
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case 0xb:
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mhz = 33;
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break;
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case 0xc:
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mhz = 25;
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break;
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default:
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mhz = 1000 / (period * 4);
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break;
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}
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} else {
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mhz = 1000 / (period * 4);
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}
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} else {
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mhz = 0;
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}
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switch (flags & (DPARM_WIDE|DPARM_TQING)) {
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case DPARM_WIDE:
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wt = ", 16 bit wide\n";
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break;
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case DPARM_TQING:
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wt = ", Tagged Queueing Enabled\n";
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break;
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case DPARM_WIDE|DPARM_TQING:
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wt = ", 16 bit wide, Tagged Queueing Enabled\n";
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break;
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default:
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wt = "\n";
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break;
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}
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if (mhz) {
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printf("%s: Bus %d Target %d at %dMHz Max "
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"Offset %d%s", isp->isp_name, bus, tgt, mhz,
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sdp->isp_devparam[tgt].cur_offset, wt);
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} else {
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printf("%s: Bus %d Target %d Async Mode%s",
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isp->isp_name, bus, tgt, wt);
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}
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}
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break;
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case ISPASYNC_BUS_RESET:
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if (arg)
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bus = *((int *) arg);
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else
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bus = 0;
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printf("%s: SCSI bus %d reset detected\n", isp->isp_name, bus);
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break;
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case ISPASYNC_LOOP_DOWN:
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/*
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* Hopefully we get here in time to minimize the number
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* of commands we are firing off that are sure to die.
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*/
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isp->isp_osinfo.blocked = 1;
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printf("%s: Loop DOWN\n", isp->isp_name);
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break;
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case ISPASYNC_LOOP_UP:
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isp->isp_osinfo.blocked = 0;
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timeout(isp_internal_restart, isp, 1);
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printf("%s: Loop UP\n", isp->isp_name);
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break;
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case ISPASYNC_PDB_CHANGED:
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if (IS_FC(isp)) {
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const char *fmt = "%s: Target %d (Loop 0x%x) Port ID 0x%x "
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"role %s %s\n Port WWN 0x%08x%08x\n Node WWN 0x%08x%08x\n";
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const static char *roles[4] = {
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"No", "Target", "Initiator", "Target/Initiator"
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};
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char *ptr;
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fcparam *fcp = isp->isp_param;
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int tgt = *((int *) arg);
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struct lportdb *lp = &fcp->portdb[tgt];
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if (lp->valid) {
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ptr = "arrived";
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} else {
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ptr = "disappeared";
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}
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printf(fmt, isp->isp_name, tgt, lp->loopid, lp->portid,
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roles[lp->roles & 0x3], ptr,
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(u_int32_t) (lp->port_wwn >> 32),
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(u_int32_t) (lp->port_wwn & 0xffffffffLL),
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(u_int32_t) (lp->node_wwn >> 32),
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(u_int32_t) (lp->node_wwn & 0xffffffffLL));
|
|
break;
|
|
}
|
|
#ifdef ISP2100_FABRIC
|
|
case ISPASYNC_CHANGE_NOTIFY:
|
|
printf("%s: Name Server Database Changed\n", isp->isp_name);
|
|
break;
|
|
case ISPASYNC_FABRIC_DEV:
|
|
{
|
|
int target;
|
|
struct lportdb *lp;
|
|
sns_scrsp_t *resp = (sns_scrsp_t *) arg;
|
|
u_int32_t portid;
|
|
u_int64_t wwn;
|
|
fcparam *fcp = isp->isp_param;
|
|
|
|
portid =
|
|
(((u_int32_t) resp->snscb_port_id[0]) << 16) |
|
|
(((u_int32_t) resp->snscb_port_id[1]) << 8) |
|
|
(((u_int32_t) resp->snscb_port_id[2]));
|
|
wwn =
|
|
(((u_int64_t)resp->snscb_portname[0]) << 56) |
|
|
(((u_int64_t)resp->snscb_portname[1]) << 48) |
|
|
(((u_int64_t)resp->snscb_portname[2]) << 40) |
|
|
(((u_int64_t)resp->snscb_portname[3]) << 32) |
|
|
(((u_int64_t)resp->snscb_portname[4]) << 24) |
|
|
(((u_int64_t)resp->snscb_portname[5]) << 16) |
|
|
(((u_int64_t)resp->snscb_portname[6]) << 8) |
|
|
(((u_int64_t)resp->snscb_portname[7]));
|
|
printf("%s: Fabric Device (Type 0x%x)@PortID 0x%x WWN "
|
|
"0x%08x%08x\n", isp->isp_name, resp->snscb_port_type,
|
|
portid, ((u_int32_t)(wwn >> 32)),
|
|
((u_int32_t)(wwn & 0xffffffff)));
|
|
if (resp->snscb_port_type != 2)
|
|
break;
|
|
for (target = FC_SNS_ID+1; target < MAX_FC_TARG; target++) {
|
|
lp = &fcp->portdb[target];
|
|
if (lp->port_wwn == wwn)
|
|
break;
|
|
}
|
|
if (target < MAX_FC_TARG) {
|
|
break;
|
|
}
|
|
for (target = FC_SNS_ID+1; target < MAX_FC_TARG; target++) {
|
|
lp = &fcp->portdb[target];
|
|
if (lp->port_wwn == 0)
|
|
break;
|
|
}
|
|
if (target == MAX_FC_TARG) {
|
|
printf("%s: no more space for fabric devices\n",
|
|
isp->isp_name);
|
|
return (-1);
|
|
}
|
|
lp->port_wwn = lp->node_wwn = wwn;
|
|
lp->portid = portid;
|
|
break;
|
|
}
|
|
#endif
|
|
default:
|
|
break;
|
|
}
|
|
(void) splx(s);
|
|
return (0);
|
|
}
|