965 lines
23 KiB
C
965 lines
23 KiB
C
/* $NetBSD: adv.c,v 1.48 2018/08/29 16:51:51 rin Exp $ */
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/*
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* Generic driver for the Advanced Systems Inc. Narrow SCSI controllers
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*
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Author: Baldassare Dante Profeta <dante@mclink.it>
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: adv.c,v 1.48 2018/08/29 16:51:51 rin Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/callout.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/bus.h>
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#include <sys/intr.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/ic/advlib.h>
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#include <dev/ic/adv.h>
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#ifndef DDB
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#define Debugger() panic("should call debugger here (adv.c)")
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#endif /* ! DDB */
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/* #define ASC_DEBUG */
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/******************************************************************************/
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static int adv_alloc_control_data(ASC_SOFTC *);
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static void adv_free_control_data(ASC_SOFTC *);
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static int adv_create_ccbs(ASC_SOFTC *, ADV_CCB *, int);
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static void adv_free_ccb(ASC_SOFTC *, ADV_CCB *);
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static void adv_reset_ccb(ADV_CCB *);
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static int adv_init_ccb(ASC_SOFTC *, ADV_CCB *);
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static ADV_CCB *adv_get_ccb(ASC_SOFTC *);
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static void adv_queue_ccb(ASC_SOFTC *, ADV_CCB *);
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static void adv_start_ccbs(ASC_SOFTC *);
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static void adv_scsipi_request(struct scsipi_channel *,
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scsipi_adapter_req_t, void *);
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static void advminphys(struct buf *);
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static void adv_narrow_isr_callback(ASC_SOFTC *, ASC_QDONE_INFO *);
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static int adv_poll(ASC_SOFTC *, struct scsipi_xfer *, int);
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static void adv_timeout(void *);
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static void adv_watchdog(void *);
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/******************************************************************************/
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#define ADV_ABORT_TIMEOUT 2000 /* time to wait for abort (mSec) */
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#define ADV_WATCH_TIMEOUT 1000 /* time to wait for watchdog (mSec) */
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/******************************************************************************/
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/* Control Blocks routines */
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/******************************************************************************/
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static int
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adv_alloc_control_data(ASC_SOFTC *sc)
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{
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int error;
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/*
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* Allocate the control blocks.
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*/
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if ((error = bus_dmamem_alloc(sc->sc_dmat, sizeof(struct adv_control),
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PAGE_SIZE, 0, &sc->sc_control_seg, 1,
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&sc->sc_control_nsegs, BUS_DMA_NOWAIT)) != 0) {
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aprint_error_dev(sc->sc_dev, "unable to allocate control "
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"structures, error = %d\n", error);
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return (error);
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}
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if ((error = bus_dmamem_map(sc->sc_dmat, &sc->sc_control_seg,
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sc->sc_control_nsegs, sizeof(struct adv_control),
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(void **) & sc->sc_control,
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BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to map control structures, error = %d\n", error);
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return (error);
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}
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/*
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* Create and load the DMA map used for the control blocks.
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*/
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if ((error = bus_dmamap_create(sc->sc_dmat, sizeof(struct adv_control),
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1, sizeof(struct adv_control), 0, BUS_DMA_NOWAIT,
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&sc->sc_dmamap_control)) != 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to create control DMA map, error = %d\n", error);
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return (error);
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}
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if ((error = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap_control,
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sc->sc_control, sizeof(struct adv_control), NULL,
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BUS_DMA_NOWAIT)) != 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to load control DMA map, error = %d\n", error);
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return (error);
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}
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/*
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* Initialize the overrun_buf address.
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*/
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sc->overrun_buf = sc->sc_dmamap_control->dm_segs[0].ds_addr +
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offsetof(struct adv_control, overrun_buf);
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return (0);
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}
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static void
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adv_free_control_data(ASC_SOFTC *sc)
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{
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bus_dmamap_unload(sc->sc_dmat, sc->sc_dmamap_control);
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bus_dmamap_destroy(sc->sc_dmat, sc->sc_dmamap_control);
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sc->sc_dmamap_control = NULL;
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bus_dmamem_unmap(sc->sc_dmat, (void *) sc->sc_control,
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sizeof(struct adv_control));
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bus_dmamem_free(sc->sc_dmat, &sc->sc_control_seg,
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sc->sc_control_nsegs);
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}
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/*
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* Create a set of ccbs and add them to the free list. Called once
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* by adv_init(). We return the number of CCBs successfully created.
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*/
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static int
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adv_create_ccbs(ASC_SOFTC *sc, ADV_CCB *ccbstore, int count)
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{
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ADV_CCB *ccb;
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int i, error;
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memset(ccbstore, 0, sizeof(ADV_CCB) * count);
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for (i = 0; i < count; i++) {
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ccb = &ccbstore[i];
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if ((error = adv_init_ccb(sc, ccb)) != 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to initialize ccb, error = %d\n", error);
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return (i);
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}
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TAILQ_INSERT_TAIL(&sc->sc_free_ccb, ccb, chain);
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}
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return (i);
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}
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/*
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* A ccb is put onto the free list.
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*/
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static void
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adv_free_ccb(ASC_SOFTC *sc, ADV_CCB *ccb)
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{
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int s;
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s = splbio();
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adv_reset_ccb(ccb);
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TAILQ_INSERT_HEAD(&sc->sc_free_ccb, ccb, chain);
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splx(s);
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}
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static void
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adv_reset_ccb(ADV_CCB *ccb)
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{
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ccb->flags = 0;
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}
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static int
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adv_init_ccb(ASC_SOFTC *sc, ADV_CCB *ccb)
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{
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int hashnum, error;
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callout_init(&ccb->ccb_watchdog, 0);
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/*
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* Create the DMA map for this CCB.
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*/
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error = bus_dmamap_create(sc->sc_dmat,
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(ASC_MAX_SG_LIST - 1) * PAGE_SIZE,
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ASC_MAX_SG_LIST, (ASC_MAX_SG_LIST - 1) * PAGE_SIZE,
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0, BUS_DMA_NOWAIT | BUS_DMA_ALLOCNOW, &ccb->dmamap_xfer);
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if (error) {
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aprint_error_dev(sc->sc_dev,
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"unable to create DMA map, error = %d\n", error);
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return (error);
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}
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/*
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* put in the phystokv hash table
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* Never gets taken out.
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*/
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ccb->hashkey = sc->sc_dmamap_control->dm_segs[0].ds_addr +
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ADV_CCB_OFF(ccb);
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hashnum = CCB_HASH(ccb->hashkey);
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ccb->nexthash = sc->sc_ccbhash[hashnum];
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sc->sc_ccbhash[hashnum] = ccb;
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adv_reset_ccb(ccb);
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return (0);
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}
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/*
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* Get a free ccb
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*
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* If there are none, see if we can allocate a new one
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*/
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static ADV_CCB *
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adv_get_ccb(ASC_SOFTC *sc)
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{
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ADV_CCB *ccb = 0;
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int s;
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s = splbio();
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ccb = TAILQ_FIRST(&sc->sc_free_ccb);
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if (ccb != NULL) {
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TAILQ_REMOVE(&sc->sc_free_ccb, ccb, chain);
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ccb->flags |= CCB_ALLOC;
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}
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splx(s);
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return (ccb);
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}
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/*
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* Given a physical address, find the ccb that it corresponds to.
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*/
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ADV_CCB *
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adv_ccb_phys_kv(ASC_SOFTC *sc, u_long ccb_phys)
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{
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int hashnum = CCB_HASH(ccb_phys);
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ADV_CCB *ccb = sc->sc_ccbhash[hashnum];
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while (ccb) {
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if (ccb->hashkey == ccb_phys)
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break;
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ccb = ccb->nexthash;
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}
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return (ccb);
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}
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/*
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* Queue a CCB to be sent to the controller, and send it if possible.
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*/
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static void
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adv_queue_ccb(ASC_SOFTC *sc, ADV_CCB *ccb)
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{
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TAILQ_INSERT_TAIL(&sc->sc_waiting_ccb, ccb, chain);
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adv_start_ccbs(sc);
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}
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static void
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adv_start_ccbs(ASC_SOFTC *sc)
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{
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ADV_CCB *ccb;
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while ((ccb = sc->sc_waiting_ccb.tqh_first) != NULL) {
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if (ccb->flags & CCB_WATCHDOG)
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callout_stop(&ccb->ccb_watchdog);
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if (AscExeScsiQueue(sc, &ccb->scsiq) == ASC_BUSY) {
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ccb->flags |= CCB_WATCHDOG;
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callout_reset(&ccb->ccb_watchdog,
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(ADV_WATCH_TIMEOUT * hz) / 1000,
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adv_watchdog, ccb);
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break;
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}
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TAILQ_REMOVE(&sc->sc_waiting_ccb, ccb, chain);
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if ((ccb->xs->xs_control & XS_CTL_POLL) == 0)
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callout_reset(&ccb->xs->xs_callout,
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mstohz(ccb->timeout), adv_timeout, ccb);
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}
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}
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/******************************************************************************/
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/* SCSI layer interfacing routines */
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/******************************************************************************/
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int
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adv_init(ASC_SOFTC *sc)
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{
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int warn;
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if (!AscFindSignature(sc->sc_iot, sc->sc_ioh)) {
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aprint_error("adv_init: failed to find signature\n");
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return (1);
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}
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/*
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* Read the board configuration
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*/
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AscInitASC_SOFTC(sc);
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warn = AscInitFromEEP(sc);
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if (warn) {
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aprint_error_dev(sc->sc_dev, "-get: ");
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switch (warn) {
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case -1:
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aprint_normal("Chip is not halted\n");
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break;
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case -2:
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aprint_normal("Couldn't get MicroCode Start"
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" address\n");
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break;
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case ASC_WARN_IO_PORT_ROTATE:
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aprint_normal("I/O port address modified\n");
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break;
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case ASC_WARN_AUTO_CONFIG:
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aprint_normal("I/O port increment switch enabled\n");
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break;
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case ASC_WARN_EEPROM_CHKSUM:
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aprint_normal("EEPROM checksum error\n");
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break;
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case ASC_WARN_IRQ_MODIFIED:
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aprint_normal("IRQ modified\n");
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break;
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case ASC_WARN_CMD_QNG_CONFLICT:
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aprint_normal("tag queuing enabled w/o disconnects\n");
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break;
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default:
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aprint_normal("unknown warning %d\n", warn);
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}
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}
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if (sc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT)
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sc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT;
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/*
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* Modify the board configuration
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*/
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warn = AscInitFromASC_SOFTC(sc);
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if (warn) {
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aprint_error_dev(sc->sc_dev, "-set: ");
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switch (warn) {
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case ASC_WARN_CMD_QNG_CONFLICT:
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aprint_normal("tag queuing enabled w/o disconnects\n");
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break;
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case ASC_WARN_AUTO_CONFIG:
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aprint_normal("I/O port increment switch enabled\n");
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break;
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default:
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aprint_normal("unknown warning %d\n", warn);
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}
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}
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sc->isr_callback = (ASC_CALLBACK) adv_narrow_isr_callback;
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return (0);
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}
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void
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adv_attach(ASC_SOFTC *sc)
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{
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struct scsipi_adapter *adapt = &sc->sc_adapter;
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struct scsipi_channel *chan = &sc->sc_channel;
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int i, error;
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/*
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* Initialize board RISC chip and enable interrupts.
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*/
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switch (AscInitDriver(sc)) {
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case 0:
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/* AllOK */
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break;
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case 1:
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panic("%s: bad signature", device_xname(sc->sc_dev));
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break;
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case 2:
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panic("%s: unable to load MicroCode",
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device_xname(sc->sc_dev));
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break;
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case 3:
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panic("%s: unable to initialize MicroCode",
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device_xname(sc->sc_dev));
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break;
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default:
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panic("%s: unable to initialize board RISC chip",
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device_xname(sc->sc_dev));
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}
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/*
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* Fill in the scsipi_adapter.
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*/
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memset(adapt, 0, sizeof(*adapt));
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adapt->adapt_dev = sc->sc_dev;
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adapt->adapt_nchannels = 1;
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/* adapt_openings initialized below */
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/* adapt_max_periph initialized below */
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adapt->adapt_request = adv_scsipi_request;
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adapt->adapt_minphys = advminphys;
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/*
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* Fill in the scsipi_channel.
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*/
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memset(chan, 0, sizeof(*chan));
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chan->chan_adapter = adapt;
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chan->chan_bustype = &scsi_bustype;
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chan->chan_channel = 0;
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chan->chan_ntargets = 8;
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chan->chan_nluns = 8;
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chan->chan_id = sc->chip_scsi_id;
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TAILQ_INIT(&sc->sc_free_ccb);
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TAILQ_INIT(&sc->sc_waiting_ccb);
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/*
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* Allocate the Control Blocks and the overrun buffer.
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*/
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error = adv_alloc_control_data(sc);
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if (error)
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return; /* (error) */
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/*
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* Create and initialize the Control Blocks.
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*/
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i = adv_create_ccbs(sc, sc->sc_control->ccbs, ADV_MAX_CCB);
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if (i == 0) {
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aprint_error_dev(sc->sc_dev,
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"unable to create control blocks\n");
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return; /* (ENOMEM) */ ;
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} else if (i != ADV_MAX_CCB) {
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aprint_error_dev(sc->sc_dev,
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"WARNING: only %d of %d control blocks created\n",
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i, ADV_MAX_CCB);
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}
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adapt->adapt_openings = i;
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adapt->adapt_max_periph = adapt->adapt_openings;
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sc->sc_child = config_found(sc->sc_dev, chan, scsiprint);
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}
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int
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adv_detach(ASC_SOFTC *sc, int flags)
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{
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int rv = 0;
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if (sc->sc_child != NULL)
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rv = config_detach(sc->sc_child, flags);
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adv_free_control_data(sc);
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return (rv);
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}
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static void
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advminphys(struct buf *bp)
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{
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if (bp->b_bcount > ((ASC_MAX_SG_LIST - 1) * PAGE_SIZE))
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bp->b_bcount = ((ASC_MAX_SG_LIST - 1) * PAGE_SIZE);
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minphys(bp);
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}
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|
|
/*
|
|
* start a scsi operation given the command and the data address. Also needs
|
|
* the unit, target and lu.
|
|
*/
|
|
|
|
static void
|
|
adv_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req,
|
|
void *arg)
|
|
{
|
|
struct scsipi_xfer *xs;
|
|
struct scsipi_periph *periph;
|
|
ASC_SOFTC *sc = device_private(chan->chan_adapter->adapt_dev);
|
|
bus_dma_tag_t dmat = sc->sc_dmat;
|
|
ADV_CCB *ccb;
|
|
int s, flags, error, nsegs;
|
|
|
|
switch (req) {
|
|
case ADAPTER_REQ_RUN_XFER:
|
|
xs = arg;
|
|
periph = xs->xs_periph;
|
|
flags = xs->xs_control;
|
|
|
|
/*
|
|
* Get a CCB to use.
|
|
*/
|
|
ccb = adv_get_ccb(sc);
|
|
#ifdef DIAGNOSTIC
|
|
/*
|
|
* This should never happen as we track the resources
|
|
* in the mid-layer.
|
|
*/
|
|
if (ccb == NULL) {
|
|
scsipi_printaddr(periph);
|
|
printf("unable to allocate ccb\n");
|
|
panic("adv_scsipi_request");
|
|
}
|
|
#endif
|
|
|
|
ccb->xs = xs;
|
|
ccb->timeout = xs->timeout;
|
|
|
|
/*
|
|
* Build up the request
|
|
*/
|
|
memset(&ccb->scsiq, 0, sizeof(ASC_SCSI_Q));
|
|
|
|
ccb->scsiq.q2.ccb_ptr =
|
|
sc->sc_dmamap_control->dm_segs[0].ds_addr +
|
|
ADV_CCB_OFF(ccb);
|
|
|
|
ccb->scsiq.cdbptr = &xs->cmd->opcode;
|
|
ccb->scsiq.q2.cdb_len = xs->cmdlen;
|
|
ccb->scsiq.q1.target_id =
|
|
ASC_TID_TO_TARGET_ID(periph->periph_target);
|
|
ccb->scsiq.q1.target_lun = periph->periph_lun;
|
|
ccb->scsiq.q2.target_ix =
|
|
ASC_TIDLUN_TO_IX(periph->periph_target,
|
|
periph->periph_lun);
|
|
ccb->scsiq.q1.sense_addr =
|
|
sc->sc_dmamap_control->dm_segs[0].ds_addr +
|
|
ADV_CCB_OFF(ccb) + offsetof(struct adv_ccb, scsi_sense);
|
|
ccb->scsiq.q1.sense_len = sizeof(struct scsi_sense_data);
|
|
|
|
/*
|
|
* If there are any outstanding requests for the current
|
|
* target, then every 255th request send an ORDERED request.
|
|
* This heuristic tries to retain the benefit of request
|
|
* sorting while preventing request starvation. 255 is the
|
|
* max number of tags or pending commands a device may have
|
|
* outstanding.
|
|
*/
|
|
sc->reqcnt[periph->periph_target]++;
|
|
if (((sc->reqcnt[periph->periph_target] > 0) &&
|
|
(sc->reqcnt[periph->periph_target] % 255) == 0) ||
|
|
xs->bp == NULL || (xs->bp->b_flags & B_ASYNC) == 0) {
|
|
ccb->scsiq.q2.tag_code = M2_QTAG_MSG_ORDERED;
|
|
} else {
|
|
ccb->scsiq.q2.tag_code = M2_QTAG_MSG_SIMPLE;
|
|
}
|
|
|
|
if (xs->datalen) {
|
|
/*
|
|
* Map the DMA transfer.
|
|
*/
|
|
#ifdef TFS
|
|
if (flags & SCSI_DATA_UIO) {
|
|
error = bus_dmamap_load_uio(dmat,
|
|
ccb->dmamap_xfer, (struct uio *) xs->data,
|
|
((flags & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT :
|
|
BUS_DMA_WAITOK) | BUS_DMA_STREAMING |
|
|
((flags & XS_CTL_DATA_IN) ? BUS_DMA_READ :
|
|
BUS_DMA_WRITE));
|
|
} else
|
|
#endif /* TFS */
|
|
{
|
|
error = bus_dmamap_load(dmat, ccb->dmamap_xfer,
|
|
xs->data, xs->datalen, NULL,
|
|
((flags & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT :
|
|
BUS_DMA_WAITOK) | BUS_DMA_STREAMING |
|
|
((flags & XS_CTL_DATA_IN) ? BUS_DMA_READ :
|
|
BUS_DMA_WRITE));
|
|
}
|
|
|
|
switch (error) {
|
|
case 0:
|
|
break;
|
|
|
|
|
|
case ENOMEM:
|
|
case EAGAIN:
|
|
xs->error = XS_RESOURCE_SHORTAGE;
|
|
goto out_bad;
|
|
|
|
default:
|
|
xs->error = XS_DRIVER_STUFFUP;
|
|
if (error == EFBIG) {
|
|
aprint_error_dev(sc->sc_dev,
|
|
"adv_scsi_cmd, more than %d"
|
|
" DMA segments\n",
|
|
ASC_MAX_SG_LIST);
|
|
} else {
|
|
aprint_error_dev(sc->sc_dev,
|
|
"adv_scsi_cmd, error %d"
|
|
" loading DMA map\n", error);
|
|
}
|
|
|
|
out_bad:
|
|
adv_free_ccb(sc, ccb);
|
|
scsipi_done(xs);
|
|
return;
|
|
}
|
|
bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
|
|
ccb->dmamap_xfer->dm_mapsize,
|
|
(flags & XS_CTL_DATA_IN) ?
|
|
BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
|
|
|
|
memset(&ccb->sghead, 0, sizeof(ASC_SG_HEAD));
|
|
|
|
for (nsegs = 0;
|
|
nsegs < ccb->dmamap_xfer->dm_nsegs; nsegs++) {
|
|
ccb->sghead.sg_list[nsegs].addr =
|
|
ccb->dmamap_xfer->dm_segs[nsegs].ds_addr;
|
|
ccb->sghead.sg_list[nsegs].bytes =
|
|
ccb->dmamap_xfer->dm_segs[nsegs].ds_len;
|
|
}
|
|
|
|
ccb->sghead.entry_cnt = ccb->scsiq.q1.sg_queue_cnt =
|
|
ccb->dmamap_xfer->dm_nsegs;
|
|
|
|
ccb->scsiq.q1.cntl |= ASC_QC_SG_HEAD;
|
|
ccb->scsiq.sg_head = &ccb->sghead;
|
|
ccb->scsiq.q1.data_addr = 0;
|
|
ccb->scsiq.q1.data_cnt = 0;
|
|
} else {
|
|
/*
|
|
* No data xfer, use non S/G values.
|
|
*/
|
|
ccb->scsiq.q1.data_addr = 0;
|
|
ccb->scsiq.q1.data_cnt = 0;
|
|
}
|
|
|
|
#ifdef ASC_DEBUG
|
|
printf("id = %d, lun = %d, cmd = %d, ccb = 0x%lX\n",
|
|
periph->periph_target,
|
|
periph->periph_lun, xs->cmd->opcode,
|
|
(unsigned long)ccb);
|
|
#endif
|
|
s = splbio();
|
|
adv_queue_ccb(sc, ccb);
|
|
splx(s);
|
|
|
|
if ((flags & XS_CTL_POLL) == 0)
|
|
return;
|
|
|
|
/* Not allowed to use interrupts, poll for completion. */
|
|
if (adv_poll(sc, xs, ccb->timeout)) {
|
|
adv_timeout(ccb);
|
|
if (adv_poll(sc, xs, ccb->timeout))
|
|
adv_timeout(ccb);
|
|
}
|
|
return;
|
|
|
|
case ADAPTER_REQ_GROW_RESOURCES:
|
|
/* XXX Not supported. */
|
|
return;
|
|
|
|
case ADAPTER_REQ_SET_XFER_MODE:
|
|
{
|
|
/*
|
|
* We can't really set the mode, but we know how to
|
|
* query what the firmware negotiated.
|
|
*/
|
|
struct scsipi_xfer_mode *xm = arg;
|
|
u_int8_t sdtr_data;
|
|
ASC_SCSI_BIT_ID_TYPE tid_bit;
|
|
|
|
tid_bit = ASC_TIX_TO_TARGET_ID(xm->xm_target);
|
|
|
|
xm->xm_mode = 0;
|
|
xm->xm_period = 0;
|
|
xm->xm_offset = 0;
|
|
|
|
if (sc->init_sdtr & tid_bit) {
|
|
xm->xm_mode |= PERIPH_CAP_SYNC;
|
|
sdtr_data = sc->sdtr_data[xm->xm_target];
|
|
xm->xm_period =
|
|
sc->sdtr_period_tbl[(sdtr_data >> 4) &
|
|
(sc->max_sdtr_index - 1)];
|
|
xm->xm_offset = sdtr_data & ASC_SYN_MAX_OFFSET;
|
|
}
|
|
|
|
if (sc->use_tagged_qng & tid_bit)
|
|
xm->xm_mode |= PERIPH_CAP_TQING;
|
|
|
|
scsipi_async_event(chan, ASYNC_EVENT_XFER_MODE, xm);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
adv_intr(void *arg)
|
|
{
|
|
ASC_SOFTC *sc = arg;
|
|
|
|
#ifdef ASC_DEBUG
|
|
int int_pend = FALSE;
|
|
|
|
if (ASC_IS_INT_PENDING(sc->sc_iot, sc->sc_ioh)) {
|
|
int_pend = TRUE;
|
|
printf("ISR - ");
|
|
}
|
|
#endif
|
|
AscISR(sc);
|
|
#ifdef ASC_DEBUG
|
|
if(int_pend)
|
|
printf("\n");
|
|
#endif
|
|
|
|
return (1);
|
|
}
|
|
|
|
|
|
/*
|
|
* Poll a particular unit, looking for a particular xs
|
|
*/
|
|
static int
|
|
adv_poll(ASC_SOFTC *sc, struct scsipi_xfer *xs, int count)
|
|
{
|
|
|
|
/* timeouts are in msec, so we loop in 1000 usec cycles */
|
|
while (count) {
|
|
adv_intr(sc);
|
|
if (xs->xs_status & XS_STS_DONE)
|
|
return (0);
|
|
delay(1000); /* only happens in boot so ok */
|
|
count--;
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
|
|
static void
|
|
adv_timeout(void *arg)
|
|
{
|
|
ADV_CCB *ccb = arg;
|
|
struct scsipi_xfer *xs = ccb->xs;
|
|
struct scsipi_periph *periph = xs->xs_periph;
|
|
ASC_SOFTC *sc =
|
|
device_private(periph->periph_channel->chan_adapter->adapt_dev);
|
|
int s;
|
|
|
|
scsipi_printaddr(periph);
|
|
printf("timed out");
|
|
|
|
s = splbio();
|
|
|
|
/*
|
|
* If it has been through before, then a previous abort has failed,
|
|
* don't try abort again, reset the bus instead.
|
|
*/
|
|
if (ccb->flags & CCB_ABORT) {
|
|
/* abort timed out */
|
|
printf(" AGAIN. Resetting Bus\n");
|
|
/* Lets try resetting the bus! */
|
|
if (AscResetBus(sc) == ASC_ERROR) {
|
|
ccb->timeout = sc->scsi_reset_wait;
|
|
adv_queue_ccb(sc, ccb);
|
|
}
|
|
} else {
|
|
/* abort the operation that has timed out */
|
|
printf("\n");
|
|
AscAbortCCB(sc, ccb);
|
|
ccb->xs->error = XS_TIMEOUT;
|
|
ccb->timeout = ADV_ABORT_TIMEOUT;
|
|
ccb->flags |= CCB_ABORT;
|
|
adv_queue_ccb(sc, ccb);
|
|
}
|
|
|
|
splx(s);
|
|
}
|
|
|
|
|
|
static void
|
|
adv_watchdog(void *arg)
|
|
{
|
|
ADV_CCB *ccb = arg;
|
|
struct scsipi_xfer *xs = ccb->xs;
|
|
struct scsipi_periph *periph = xs->xs_periph;
|
|
ASC_SOFTC *sc =
|
|
device_private(periph->periph_channel->chan_adapter->adapt_dev);
|
|
int s;
|
|
|
|
s = splbio();
|
|
|
|
ccb->flags &= ~CCB_WATCHDOG;
|
|
adv_start_ccbs(sc);
|
|
|
|
splx(s);
|
|
}
|
|
|
|
|
|
/******************************************************************************/
|
|
/* NARROW boards Interrupt callbacks */
|
|
/******************************************************************************/
|
|
|
|
|
|
/*
|
|
* adv_narrow_isr_callback() - Second Level Interrupt Handler called by AscISR()
|
|
*
|
|
* Interrupt callback function for the Narrow SCSI Asc Library.
|
|
*/
|
|
static void
|
|
adv_narrow_isr_callback(ASC_SOFTC *sc, ASC_QDONE_INFO *qdonep)
|
|
{
|
|
bus_dma_tag_t dmat = sc->sc_dmat;
|
|
ADV_CCB *ccb;
|
|
struct scsipi_xfer *xs;
|
|
struct scsi_sense_data *s1, *s2;
|
|
|
|
|
|
ccb = adv_ccb_phys_kv(sc, qdonep->d2.ccb_ptr);
|
|
xs = ccb->xs;
|
|
|
|
#ifdef ASC_DEBUG
|
|
printf(" - ccb=0x%lx, id=%d, lun=%d, cmd=%d, ",
|
|
(unsigned long)ccb,
|
|
xs->xs_periph->periph_target,
|
|
xs->xs_periph->periph_lun, xs->cmd->opcode);
|
|
#endif
|
|
callout_stop(&ccb->xs->xs_callout);
|
|
|
|
/*
|
|
* If we were a data transfer, unload the map that described
|
|
* the data buffer.
|
|
*/
|
|
if (xs->datalen) {
|
|
bus_dmamap_sync(dmat, ccb->dmamap_xfer, 0,
|
|
ccb->dmamap_xfer->dm_mapsize,
|
|
(xs->xs_control & XS_CTL_DATA_IN) ?
|
|
BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
|
|
bus_dmamap_unload(dmat, ccb->dmamap_xfer);
|
|
}
|
|
if ((ccb->flags & CCB_ALLOC) == 0) {
|
|
aprint_error_dev(sc->sc_dev, "exiting ccb not allocated!\n");
|
|
Debugger();
|
|
return;
|
|
}
|
|
/*
|
|
* 'qdonep' contains the command's ending status.
|
|
*/
|
|
#ifdef ASC_DEBUG
|
|
printf("d_s=%d, h_s=%d", qdonep->d3.done_stat, qdonep->d3.host_stat);
|
|
#endif
|
|
switch (qdonep->d3.done_stat) {
|
|
case ASC_QD_NO_ERROR:
|
|
switch (qdonep->d3.host_stat) {
|
|
case ASC_QHSTA_NO_ERROR:
|
|
xs->error = XS_NOERROR;
|
|
/*
|
|
* XXX
|
|
* According to the original Linux driver, xs->resid
|
|
* should be qdonep->remain_bytes. However, its value
|
|
* is bogus, which seems like a H/W bug. The best thing
|
|
* we can do would be to ignore it, assuming that all
|
|
* data has been successfully transferred...
|
|
*/
|
|
xs->resid = 0;
|
|
break;
|
|
|
|
default:
|
|
/* QHSTA error occurred */
|
|
xs->error = XS_DRIVER_STUFFUP;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* If an INQUIRY command completed successfully, then call
|
|
* the AscInquiryHandling() function to patch bugged boards.
|
|
*/
|
|
if ((xs->cmd->opcode == SCSICMD_Inquiry) &&
|
|
(xs->xs_periph->periph_lun == 0) &&
|
|
(xs->datalen - qdonep->remain_bytes) >= 8) {
|
|
AscInquiryHandling(sc,
|
|
xs->xs_periph->periph_target & 0x7,
|
|
(ASC_SCSI_INQUIRY *) xs->data);
|
|
}
|
|
break;
|
|
|
|
case ASC_QD_WITH_ERROR:
|
|
switch (qdonep->d3.host_stat) {
|
|
case ASC_QHSTA_NO_ERROR:
|
|
if (qdonep->d3.scsi_stat == SS_CHK_CONDITION) {
|
|
s1 = &ccb->scsi_sense;
|
|
s2 = &xs->sense.scsi_sense;
|
|
*s2 = *s1;
|
|
xs->error = XS_SENSE;
|
|
} else {
|
|
xs->error = XS_DRIVER_STUFFUP;
|
|
}
|
|
break;
|
|
|
|
case ASC_QHSTA_M_SEL_TIMEOUT:
|
|
xs->error = XS_SELTIMEOUT;
|
|
break;
|
|
|
|
default:
|
|
/* QHSTA error occurred */
|
|
xs->error = XS_DRIVER_STUFFUP;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case ASC_QD_ABORTED_BY_HOST:
|
|
default:
|
|
xs->error = XS_DRIVER_STUFFUP;
|
|
break;
|
|
}
|
|
|
|
adv_free_ccb(sc, ccb);
|
|
scsipi_done(xs);
|
|
}
|