b3c957133a
has already been registered with ATAPI/CAM (else there is nothing to do). atapi_cam_reinit_bus may be called before the bus is registered if an ATAPI command times out during the boot sequence. PR: i386/51421 Reviewed by: roberto Approved by: re (rwatson) MFC after: 1 week
701 lines
19 KiB
C
701 lines
19 KiB
C
/*-
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* Copyright (c) 2001,2002 Thomas Quinot <thomas@cuivre.fr.eu.org>
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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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* without modification, immediately at the beginning of the file.
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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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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/ata.h>
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#include <machine/bus.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_periph.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt_sim.h>
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#include <cam/cam_debug.h>
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#include <cam/scsi/scsi_all.h>
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#include <dev/ata/ata-all.h>
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#include <dev/ata/atapi-all.h>
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/* hardware command descriptor block */
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struct atapi_hcb {
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struct atapi_xpt_softc *softc;
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int unit;
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int bus;
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int target;
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int lun;
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union ccb *ccb;
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u_int8_t cmd[CAM_MAX_CDBLEN];
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int flags;
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#define DOING_AUTOSENSE 1
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char *dxfer_alloc;
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TAILQ_ENTRY(atapi_hcb) chain;
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};
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/* private data associated with an ATA bus */
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struct atapi_xpt_softc {
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struct ata_channel *ata_ch;
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struct cam_path *path;
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struct cam_sim *sim;
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int flags;
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#define BUS_REGISTERED 0x01
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#define RESOURCE_SHORTAGE 0x02
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TAILQ_HEAD(,atapi_hcb) pending_hcbs;
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LIST_ENTRY(atapi_xpt_softc) chain;
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};
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enum reinit_reason { BOOT_ATTACH, ATTACH, RESET };
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static LIST_HEAD(,atapi_xpt_softc) all_buses = LIST_HEAD_INITIALIZER(all_buses);
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/* CAM XPT methods */
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static void atapi_action(struct cam_sim *, union ccb *);
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static void atapi_poll(struct cam_sim *);
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static void atapi_async(void *, u_int32_t, struct cam_path *, void *);
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static void atapi_async1(void *, u_int32_t, struct cam_path *, void *);
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static int atapi_cb(struct atapi_request *);
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/* internal functions */
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static void reinit_bus(struct atapi_xpt_softc *scp, enum reinit_reason reason);
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static void setup_dev(struct atapi_xpt_softc *, struct ata_device *);
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static void setup_async_cb(struct atapi_xpt_softc *, uint32_t);
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static void cam_rescan_callback(struct cam_periph *, union ccb *);
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static void cam_rescan(struct cam_sim *);
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static void free_hcb_and_ccb_done(struct atapi_hcb *, u_int32_t);
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static struct atapi_hcb *allocate_hcb(struct atapi_xpt_softc *, int, int, union ccb *);
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static void free_hcb(struct atapi_hcb *hcb);
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static void free_softc(struct atapi_xpt_softc *scp);
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static struct atapi_xpt_softc *get_softc(struct ata_channel *ata_ch);
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static struct ata_device *get_ata_device(struct atapi_xpt_softc *scp, int id);
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static MALLOC_DEFINE(M_ATACAM, "ATA CAM transport", "ATA driver CAM-XPT layer");
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void
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atapi_cam_attach_bus(struct ata_channel *ata_ch)
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{
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struct atapi_xpt_softc *scp = NULL;
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struct cam_devq *devq = NULL;
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struct cam_sim *sim = NULL;
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struct cam_path *path = NULL;
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int unit;
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LIST_FOREACH(scp, &all_buses, chain) {
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if (scp->ata_ch == ata_ch)
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return;
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}
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if ((scp = malloc(sizeof(struct atapi_xpt_softc),
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M_ATACAM, M_NOWAIT | M_ZERO)) == NULL)
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goto error;
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scp->ata_ch = ata_ch;
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TAILQ_INIT(&scp->pending_hcbs);
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LIST_INSERT_HEAD(&all_buses, scp, chain);
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unit = device_get_unit(ata_ch->dev);
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if ((devq = cam_simq_alloc(16)) == NULL)
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goto error;
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if ((sim = cam_sim_alloc(atapi_action, atapi_poll, "ata",
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(void *)scp, unit, 1, 1, devq)) == NULL) {
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cam_simq_free(devq);
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goto error;
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}
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scp->sim = sim;
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if (xpt_bus_register(sim, 0) != CAM_SUCCESS) {
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goto error;
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}
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scp->flags |= BUS_REGISTERED;
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if (xpt_create_path(&path, /*periph*/ NULL,
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cam_sim_path(sim), CAM_TARGET_WILDCARD,
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CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
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goto error;
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}
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scp->path = path;
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CAM_DEBUG(path, CAM_DEBUG_TRACE, ("Registered SIM for ata%d\n", unit));
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setup_async_cb(scp, AC_LOST_DEVICE);
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reinit_bus(scp, cold ? BOOT_ATTACH : ATTACH);
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return;
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error:
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free_softc(scp);
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}
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void
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atapi_cam_detach_bus(struct ata_channel *ata_ch)
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{
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struct atapi_xpt_softc *scp = get_softc(ata_ch);
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free_softc(scp);
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}
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void
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atapi_cam_reinit_bus(struct ata_channel *ata_ch) {
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struct atapi_xpt_softc *scp = get_softc(ata_ch);
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/*
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* scp might be null if the bus is being reinitialised during
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* the boot-up sequence, before the ATAPI bus is registered.
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*/
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if (scp != NULL)
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reinit_bus(scp, RESET);
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}
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static void
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reinit_bus(struct atapi_xpt_softc *scp, enum reinit_reason reason) {
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if (scp->ata_ch->devices & ATA_ATAPI_MASTER)
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setup_dev(scp, &scp->ata_ch->device[MASTER]);
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if (scp->ata_ch->devices & ATA_ATAPI_SLAVE)
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setup_dev(scp, &scp->ata_ch->device[SLAVE]);
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switch (reason) {
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case BOOT_ATTACH:
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break;
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case RESET:
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xpt_async(AC_BUS_RESET, scp->path, NULL);
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/*FALLTHROUGH*/
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case ATTACH:
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cam_rescan(scp->sim);
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break;
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}
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}
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static void
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setup_dev(struct atapi_xpt_softc *scp, struct ata_device *atp)
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{
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if (atp->driver == NULL) {
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ata_set_name(atp, "atapicam",
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2 * device_get_unit(atp->channel->dev) +
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(atp->unit == ATA_MASTER) ? 0 : 1);
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atp->driver = (void *)scp;
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}
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}
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static void
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setup_async_cb(struct atapi_xpt_softc *scp, uint32_t events)
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{
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struct ccb_setasync csa;
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xpt_setup_ccb(&csa.ccb_h, scp->path, /*priority*/ 5);
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csa.ccb_h.func_code = XPT_SASYNC_CB;
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csa.event_enable = events;
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csa.callback = &atapi_async;
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csa.callback_arg = scp->sim;
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xpt_action((union ccb *) &csa);
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}
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static void
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atapi_action(struct cam_sim *sim, union ccb *ccb)
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{
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struct atapi_xpt_softc *softc = (struct atapi_xpt_softc*)cam_sim_softc(sim);
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struct ccb_hdr *ccb_h = &ccb->ccb_h;
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struct atapi_hcb *hcb = NULL;
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int unit = cam_sim_unit(sim);
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int bus = cam_sim_bus(sim);
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int len, s;
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char *buf;
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switch (ccb_h->func_code) {
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case XPT_PATH_INQ: {
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struct ccb_pathinq *cpi = &ccb->cpi;
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cpi->version_num = 1;
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cpi->hba_inquiry = 0;
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cpi->target_sprt = 0;
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cpi->hba_misc = 0;
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cpi->hba_eng_cnt = 0;
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bzero(cpi->vuhba_flags, sizeof(cpi->vuhba_flags));
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cpi->max_target = 1;
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cpi->max_lun = 0;
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cpi->async_flags = 0;
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cpi->hpath_id = 0;
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cpi->initiator_id = 7;
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strncpy(cpi->sim_vid, "FreeBSD", sizeof(cpi->sim_vid));
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strncpy(cpi->hba_vid, "ATAPI", sizeof(cpi->hba_vid));
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strncpy(cpi->dev_name, cam_sim_name(sim), sizeof cpi->dev_name);
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cpi->unit_number = cam_sim_unit(sim);
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cpi->bus_id = cam_sim_bus(sim);
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if (softc->ata_ch && ccb_h->target_id >= 0) {
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switch (softc->ata_ch->device[ccb_h->target_id].mode) {
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case ATA_PIO1:
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cpi->base_transfer_speed = 5200;
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break;
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case ATA_PIO2:
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cpi->base_transfer_speed = 7000;
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break;
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case ATA_PIO3:
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cpi->base_transfer_speed = 11000;
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break;
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case ATA_PIO4:
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case ATA_DMA:
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case ATA_WDMA2:
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cpi->base_transfer_speed = 16000;
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break;
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case ATA_UDMA2:
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cpi->base_transfer_speed = 33000;
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break;
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case ATA_UDMA4:
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cpi->base_transfer_speed = 66000;
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break;
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case ATA_UDMA5:
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cpi->base_transfer_speed = 100000;
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break;
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case ATA_UDMA6:
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cpi->base_transfer_speed = 133000;
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break;
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default: cpi->base_transfer_speed = 3300;
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}
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}
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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return;
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}
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case XPT_RESET_DEV: {
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int tid = ccb_h->target_id;
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struct ata_device *dev = get_ata_device(softc, tid);
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, ("dev reset\n"));
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atapi_reinit(dev);
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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return;
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}
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case XPT_RESET_BUS:
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, ("bus reset\n"));
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ata_reinit(softc->ata_ch);
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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return;
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case XPT_SET_TRAN_SETTINGS:
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/* ignore these, we're not doing SCSI here */
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE,
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("SET_TRAN_SETTINGS not supported\n"));
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ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
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xpt_done(ccb);
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return;
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case XPT_GET_TRAN_SETTINGS: {
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struct ccb_trans_settings *cts = &ccb->cts;
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/*
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* XXX The default CAM transport code is very scsi specific and
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* doesn't understand IDE speeds very well. Be silent about it
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* here and let it default to what is set in XPT_PATH_INQ
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*/
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, ("GET_TRAN_SETTINGS\n"));
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cts->valid = (CCB_TRANS_DISC_VALID | CCB_TRANS_TQ_VALID);
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cts->flags &= ~(CCB_TRANS_DISC_ENB | CCB_TRANS_TAG_ENB);
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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return;
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}
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case XPT_CALC_GEOMETRY: {
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struct ccb_calc_geometry *ccg;
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unsigned int size_mb;
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unsigned int secs_per_cylinder;
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int extended;
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CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_SUBTRACE, ("CALC_GEOMETRY\n"));
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ccg = &ccb->ccg;
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size_mb = ccg->volume_size / ((1024L * 1024L) / ccg->block_size);
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extended = 1;
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if (size_mb > 1024 && extended) {
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ccg->heads = 255;
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ccg->secs_per_track = 63;
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} else {
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ccg->heads = 64;
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ccg->secs_per_track = 32;
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}
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secs_per_cylinder = ccg->heads * ccg->secs_per_track;
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ccg->cylinders = ccg->volume_size / secs_per_cylinder;
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ccb->ccb_h.status = CAM_REQ_CMP;
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xpt_done(ccb);
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return;
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}
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case XPT_SCSI_IO: {
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struct ccb_scsiio *csio = &ccb->csio;
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int tid = ccb_h->target_id, lid = ccb_h->target_lun;
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struct ata_device *dev = get_ata_device(softc, tid);
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CAM_DEBUG(ccb_h->path, CAM_DEBUG_SUBTRACE, ("XPT_SCSI_IO\n"));
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/* check that this request was not aborted already */
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if ((ccb_h->status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
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printf("XPT_SCSI_IO received but already in progress?\n");
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xpt_done(ccb);
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return;
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}
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if (dev == NULL) {
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CAM_DEBUG(ccb_h->path, CAM_DEBUG_SUBTRACE,
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("SCSI IO received for invalid device\n"));
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ccb_h->status = CAM_TID_INVALID;
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xpt_done(ccb);
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return;
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}
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if (lid > 0) {
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CAM_DEBUG(ccb_h->path, CAM_DEBUG_SUBTRACE,
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("SCSI IO received for invalid lun %d\n", lid));
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ccb_h->status = CAM_LUN_INVALID;
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xpt_done(ccb);
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return;
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}
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if ((ccb_h->flags & CAM_SCATTER_VALID)) {
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/* scatter-gather not supported */
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xpt_print_path(ccb_h->path);
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printf("ATAPI-CAM does not support scatter-gather yet!\n");
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break;
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}
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if ((hcb = allocate_hcb(softc, unit, bus, ccb)) == NULL)
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goto action_oom;
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ccb_h->status |= CAM_SIM_QUEUED;
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bcopy((ccb_h->flags & CAM_CDB_POINTER) ?
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csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes,
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hcb->cmd, csio->cdb_len);
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#ifdef CAMDEBUG
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if (CAM_DEBUGGED(ccb_h->path, CAM_DEBUG_CDB)) {
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char cdb_str[(SCSI_MAX_CDBLEN * 3) + 1];
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printf("atapi_action: hcb@%p: %s\n", hcb,
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scsi_cdb_string(hcb->cmd, cdb_str, sizeof(cdb_str)));
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}
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#endif
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len = csio->dxfer_len;
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buf = csio->data_ptr;
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/* some SCSI commands require special processing */
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switch (hcb->cmd[0]) {
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case INQUIRY: {
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/*
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* many ATAPI devices seem to report more than
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* SHORT_INQUIRY_LENGTH bytes of available INQUIRY
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* information, but respond with some incorrect condition
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* when actually asked for it, so we are going to pretend
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* that only SHORT_INQUIRY_LENGTH are expected, anyway.
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*/
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struct scsi_inquiry *inq = (struct scsi_inquiry *) &hcb->cmd[0];
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if (inq->byte2 == 0 && inq->page_code == 0 &&
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inq->length > SHORT_INQUIRY_LENGTH) {
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bzero(buf, len);
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len = inq->length = SHORT_INQUIRY_LENGTH;
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}
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break;
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}
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case READ_6:
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/* FALLTHROUGH */
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case WRITE_6:
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CAM_DEBUG(ccb_h->path, CAM_DEBUG_SUBTRACE,
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("Translating %s into _10 equivalent\n",
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(hcb->cmd[0] == READ_6) ? "READ_6" : "WRITE_6"));
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hcb->cmd[0] |= 0x20;
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hcb->cmd[9] = hcb->cmd[5];
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hcb->cmd[8] = hcb->cmd[4];
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hcb->cmd[7] = 0;
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hcb->cmd[6] = 0;
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hcb->cmd[5] = hcb->cmd[3];
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hcb->cmd[4] = hcb->cmd[2];
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hcb->cmd[3] = hcb->cmd[1] & 0x1f;
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hcb->cmd[2] = 0;
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hcb->cmd[1] = 0;
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break;
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}
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if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_IN && (len & 1)) {
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/* ATA always transfers an even number of bytes */
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if (!(buf = hcb->dxfer_alloc = malloc(++len, M_ATACAM,
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M_NOWAIT | M_ZERO)))
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goto action_oom;
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}
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s = splbio();
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TAILQ_INSERT_TAIL(&softc->pending_hcbs, hcb, chain);
|
|
splx(s);
|
|
if (atapi_queue_cmd(dev, hcb->cmd, buf, len,
|
|
(((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_IN) ?
|
|
ATPR_F_READ : 0) | ATPR_F_QUIET,
|
|
ccb_h->timeout, atapi_cb, (void *)hcb) == 0)
|
|
return;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
CAM_DEBUG(ccb_h->path, CAM_DEBUG_SUBTRACE,
|
|
("unsupported function code 0x%02x\n", ccb_h->func_code));
|
|
ccb_h->status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
action_oom:
|
|
if (hcb != NULL)
|
|
free_hcb(hcb);
|
|
xpt_print_path(ccb_h->path);
|
|
printf("out of memory, freezing queue.\n");
|
|
softc->flags |= RESOURCE_SHORTAGE;
|
|
xpt_freeze_simq(sim, /*count*/ 1);
|
|
ccb_h->status = CAM_REQUEUE_REQ;
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
atapi_poll(struct cam_sim *sim)
|
|
{
|
|
/* do nothing - we do not actually service any interrupts */
|
|
printf("atapi_poll called!\n");
|
|
}
|
|
|
|
static int
|
|
atapi_cb(struct atapi_request *req)
|
|
{
|
|
struct atapi_hcb *hcb = (struct atapi_hcb *) req->driver;
|
|
struct ccb_scsiio *csio = &hcb->ccb->csio;
|
|
int hcb_status = req->result;
|
|
int s = splbio();
|
|
|
|
#ifdef CAMDEBUG
|
|
if (CAM_DEBUGGED(csio->ccb_h.path, CAM_DEBUG_CDB)) {
|
|
printf("atapi_cb: hcb@%p status = %02x: (sk = %02x%s%s%s)\n",
|
|
hcb, hcb_status, hcb_status >> 4,
|
|
(hcb_status & 4) ? " ABRT" : "",
|
|
(hcb_status & 2) ? " EOM" : "",
|
|
(hcb_status & 1) ? " ILI" : "");
|
|
printf(" %s: cmd %02x - sk=%02x asc=%02x ascq=%02x\n",
|
|
req->device->name, req->ccb[0], req->sense.sense_key,
|
|
req->sense.asc, req->sense.ascq);
|
|
}
|
|
#endif
|
|
if (hcb_status != 0) {
|
|
csio->scsi_status = SCSI_STATUS_CHECK_COND;
|
|
if ((csio->ccb_h.flags & CAM_DIS_AUTOSENSE) == 0) {
|
|
csio->ccb_h.status |= CAM_AUTOSNS_VALID;
|
|
bcopy((void *)&req->sense, (void *)&csio->sense_data,
|
|
sizeof(struct atapi_reqsense));
|
|
}
|
|
free_hcb_and_ccb_done(hcb, CAM_SCSI_STATUS_ERROR);
|
|
}
|
|
else {
|
|
if (((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) &&
|
|
hcb->dxfer_alloc != NULL)
|
|
bcopy(hcb->dxfer_alloc, csio->data_ptr, csio->dxfer_len);
|
|
csio->scsi_status = SCSI_STATUS_OK;
|
|
free_hcb_and_ccb_done(hcb, CAM_REQ_CMP);
|
|
}
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
free_hcb_and_ccb_done(struct atapi_hcb *hcb, u_int32_t status)
|
|
{
|
|
struct atapi_xpt_softc *softc = hcb->softc;
|
|
union ccb *ccb = hcb->ccb;
|
|
|
|
if (hcb != NULL) {
|
|
/* we're about to free a hcb, so the shortage has ended */
|
|
if (softc->flags & RESOURCE_SHORTAGE) {
|
|
softc->flags &= ~RESOURCE_SHORTAGE;
|
|
status |= CAM_RELEASE_SIMQ;
|
|
}
|
|
free_hcb(hcb);
|
|
}
|
|
ccb->ccb_h.status =
|
|
status | (ccb->ccb_h.status & ~(CAM_STATUS_MASK | CAM_SIM_QUEUED));
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
atapi_async(void *callback_arg, u_int32_t code,
|
|
struct cam_path *path, void *arg)
|
|
{
|
|
int s = splbio();
|
|
|
|
atapi_async1(callback_arg, code, path, arg);
|
|
splx(s);
|
|
}
|
|
|
|
static void
|
|
atapi_async1(void *callback_arg, u_int32_t code,
|
|
struct cam_path* path, void *arg)
|
|
{
|
|
struct atapi_xpt_softc *softc;
|
|
struct cam_sim *sim;
|
|
int targ;
|
|
|
|
sim = (struct cam_sim *) callback_arg;
|
|
softc = (struct atapi_xpt_softc *) cam_sim_softc(sim);
|
|
switch (code) {
|
|
case AC_LOST_DEVICE:
|
|
targ = xpt_path_target_id(path);
|
|
xpt_print_path(path);
|
|
if (targ == -1)
|
|
printf("Lost host adapter\n");
|
|
else
|
|
printf("Lost target %d???\n", targ);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
|
|
{
|
|
if (ccb->ccb_h.status != CAM_REQ_CMP) {
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
|
|
("Rescan failed, 0x%04x\n", ccb->ccb_h.status));
|
|
} else {
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE,
|
|
("Rescan succeeded\n"));
|
|
}
|
|
xpt_free_path(ccb->ccb_h.path);
|
|
free(ccb, M_ATACAM);
|
|
}
|
|
|
|
static void
|
|
cam_rescan(struct cam_sim *sim)
|
|
{
|
|
struct cam_path *path;
|
|
union ccb *ccb = malloc(sizeof(union ccb), M_ATACAM, M_WAITOK | M_ZERO);
|
|
|
|
if (xpt_create_path(&path, xpt_periph, cam_sim_path(sim),
|
|
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP)
|
|
return;
|
|
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("Rescanning ATAPI bus.\n"));
|
|
xpt_setup_ccb(&ccb->ccb_h, path, 5/*priority (low)*/);
|
|
ccb->ccb_h.func_code = XPT_SCAN_BUS;
|
|
ccb->ccb_h.cbfcnp = cam_rescan_callback;
|
|
ccb->crcn.flags = CAM_FLAG_NONE;
|
|
xpt_action(ccb);
|
|
/* scan is in progress now */
|
|
}
|
|
|
|
static struct atapi_hcb *
|
|
allocate_hcb(struct atapi_xpt_softc *softc, int unit, int bus, union ccb *ccb)
|
|
{
|
|
struct atapi_hcb *hcb = (struct atapi_hcb *)
|
|
malloc(sizeof(struct atapi_hcb), M_ATACAM, M_NOWAIT | M_ZERO);
|
|
|
|
if (hcb != NULL) {
|
|
hcb->softc = softc;
|
|
hcb->unit = unit;
|
|
hcb->bus = bus;
|
|
hcb->ccb = ccb;
|
|
}
|
|
return hcb;
|
|
}
|
|
|
|
static void
|
|
free_hcb(struct atapi_hcb *hcb)
|
|
{
|
|
TAILQ_REMOVE(&hcb->softc->pending_hcbs, hcb, chain);
|
|
if (hcb->dxfer_alloc != NULL)
|
|
free(hcb->dxfer_alloc, M_ATACAM);
|
|
free(hcb, M_ATACAM);
|
|
}
|
|
|
|
static void
|
|
free_softc(struct atapi_xpt_softc *scp)
|
|
{
|
|
struct atapi_hcb *hcb;
|
|
|
|
if (scp != NULL) {
|
|
TAILQ_FOREACH(hcb, &scp->pending_hcbs, chain) {
|
|
free_hcb_and_ccb_done(hcb, CAM_UNREC_HBA_ERROR);
|
|
}
|
|
if (scp->path != NULL) {
|
|
setup_async_cb(scp, 0);
|
|
xpt_free_path(scp->path);
|
|
}
|
|
if ((scp->flags & BUS_REGISTERED) != 0) {
|
|
if (xpt_bus_deregister(cam_sim_path(scp->sim)) == CAM_REQ_CMP)
|
|
scp->flags &= ~BUS_REGISTERED;
|
|
}
|
|
if (scp->sim != NULL) {
|
|
if ((scp->flags & BUS_REGISTERED) == 0)
|
|
cam_sim_free(scp->sim, /*free_devq*/TRUE);
|
|
else
|
|
printf("Can't free %s SIM (still registered)\n",
|
|
cam_sim_name(scp->sim));
|
|
}
|
|
LIST_REMOVE(scp, chain);
|
|
free(scp, M_ATACAM);
|
|
}
|
|
}
|
|
|
|
static struct atapi_xpt_softc *
|
|
get_softc(struct ata_channel *ata_ch) {
|
|
struct atapi_xpt_softc *scp;
|
|
LIST_FOREACH(scp, &all_buses, chain) {
|
|
if (scp->ata_ch == ata_ch)
|
|
return scp;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static struct ata_device *
|
|
get_ata_device(struct atapi_xpt_softc *scp, int id)
|
|
{
|
|
int role = ATA_ATAPI_MASTER;
|
|
|
|
switch (id) {
|
|
case 1:
|
|
role = ATA_ATAPI_SLAVE;
|
|
/* FALLTHROUGH */
|
|
|
|
case 0:
|
|
if (scp->ata_ch->devices & role)
|
|
return &scp->ata_ch->device[id];
|
|
/* FALLTHROUGH */
|
|
|
|
default:
|
|
return NULL;
|
|
}
|
|
}
|