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2354 lines
60 KiB
C
2354 lines
60 KiB
C
/*
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* Generic driver for the BusLogic MultiMaster SCSI host adapters
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* Product specific probe and attach routines can be found in:
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* sys/dev/buslogic/bt_isa.c BT-54X, BT-445 cards
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* sys/dev/buslogic/bt_mca.c BT-64X, SDC3211B, SDC3211F
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* sys/dev/buslogic/bt_eisa.c BT-74X, BT-75x cards, SDC3222F
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* sys/dev/buslogic/bt_pci.c BT-946, BT-948, BT-956, BT-958 cards
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*
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* Copyright (c) 1998, 1999 Justin T. Gibbs.
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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. 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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/*
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* Special thanks to Leonard N. Zubkoff for writing such a complete and
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* well documented Mylex/BusLogic MultiMaster driver for Linux. Support
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* in this driver for the wide range of MultiMaster controllers and
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* firmware revisions, with their otherwise undocumented quirks, would not
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* have been possible without his efforts.
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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/malloc.h>
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#include <sys/kernel.h>
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#include <sys/sysctl.h>
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#include <sys/bus.h>
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/*
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* XXX It appears that BusLogic PCI adapters go out to lunch if you
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* attempt to perform memory mapped I/O.
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*/
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#if 0
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#include "pci.h"
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#if NPCI > 0
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#include <machine/bus_memio.h>
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#endif
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#endif
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <sys/rman.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_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_message.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <dev/buslogic/btreg.h>
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#ifndef MAX
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#define MAX(a, b) ((a) > (b) ? (a) : (b))
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#endif
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/* MailBox Management functions */
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static __inline void btnextinbox(struct bt_softc *bt);
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static __inline void btnextoutbox(struct bt_softc *bt);
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static __inline void
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btnextinbox(struct bt_softc *bt)
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{
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if (bt->cur_inbox == bt->last_inbox)
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bt->cur_inbox = bt->in_boxes;
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else
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bt->cur_inbox++;
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}
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static __inline void
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btnextoutbox(struct bt_softc *bt)
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{
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if (bt->cur_outbox == bt->last_outbox)
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bt->cur_outbox = bt->out_boxes;
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else
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bt->cur_outbox++;
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}
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/* CCB Mangement functions */
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static __inline u_int32_t btccbvtop(struct bt_softc *bt,
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struct bt_ccb *bccb);
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static __inline struct bt_ccb* btccbptov(struct bt_softc *bt,
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u_int32_t ccb_addr);
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static __inline u_int32_t btsensepaddr(struct bt_softc *bt,
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struct bt_ccb *bccb);
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static __inline struct scsi_sense_data* btsensevaddr(struct bt_softc *bt,
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struct bt_ccb *bccb);
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static __inline u_int32_t
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btccbvtop(struct bt_softc *bt, struct bt_ccb *bccb)
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{
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return (bt->bt_ccb_physbase
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+ (u_int32_t)((caddr_t)bccb - (caddr_t)bt->bt_ccb_array));
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}
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static __inline struct bt_ccb *
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btccbptov(struct bt_softc *bt, u_int32_t ccb_addr)
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{
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return (bt->bt_ccb_array +
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((struct bt_ccb*)ccb_addr-(struct bt_ccb*)bt->bt_ccb_physbase));
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}
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static __inline u_int32_t
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btsensepaddr(struct bt_softc *bt, struct bt_ccb *bccb)
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{
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u_int index;
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index = (u_int)(bccb - bt->bt_ccb_array);
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return (bt->sense_buffers_physbase
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+ (index * sizeof(struct scsi_sense_data)));
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}
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static __inline struct scsi_sense_data *
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btsensevaddr(struct bt_softc *bt, struct bt_ccb *bccb)
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{
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u_int index;
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index = (u_int)(bccb - bt->bt_ccb_array);
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return (bt->sense_buffers + index);
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}
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static __inline struct bt_ccb* btgetccb(struct bt_softc *bt);
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static __inline void btfreeccb(struct bt_softc *bt,
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struct bt_ccb *bccb);
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static void btallocccbs(struct bt_softc *bt);
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static bus_dmamap_callback_t btexecuteccb;
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static void btdone(struct bt_softc *bt, struct bt_ccb *bccb,
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bt_mbi_comp_code_t comp_code);
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/* Host adapter command functions */
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static int btreset(struct bt_softc* bt, int hard_reset);
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/* Initialization functions */
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static int btinitmboxes(struct bt_softc *bt);
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static bus_dmamap_callback_t btmapmboxes;
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static bus_dmamap_callback_t btmapccbs;
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static bus_dmamap_callback_t btmapsgs;
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/* Transfer Negotiation Functions */
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static void btfetchtransinfo(struct bt_softc *bt,
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struct ccb_trans_settings *cts);
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/* CAM SIM entry points */
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#define ccb_bccb_ptr spriv_ptr0
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#define ccb_bt_ptr spriv_ptr1
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static void btaction(struct cam_sim *sim, union ccb *ccb);
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static void btpoll(struct cam_sim *sim);
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/* Our timeout handler */
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timeout_t bttimeout;
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u_long bt_unit = 0;
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/*
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* XXX
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* Do our own re-probe protection until a configuration
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* manager can do it for us. This ensures that we don't
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* reprobe a card already found by the EISA or PCI probes.
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*/
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struct bt_isa_port bt_isa_ports[] =
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{
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{ 0x130, 0, 4 },
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{ 0x134, 0, 5 },
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{ 0x230, 0, 2 },
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{ 0x234, 0, 3 },
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{ 0x330, 0, 0 },
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{ 0x334, 0, 1 }
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};
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/*
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* I/O ports listed in the order enumerated by the
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* card for certain op codes.
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*/
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u_int16_t bt_board_ports[] =
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{
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0x330,
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0x334,
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0x230,
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0x234,
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0x130,
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0x134
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};
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/* Exported functions */
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void
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bt_init_softc(device_t dev, struct resource *port,
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struct resource *irq, struct resource *drq)
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{
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struct bt_softc *bt = device_get_softc(dev);
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SLIST_INIT(&bt->free_bt_ccbs);
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LIST_INIT(&bt->pending_ccbs);
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SLIST_INIT(&bt->sg_maps);
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bt->dev = dev;
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bt->unit = device_get_unit(dev);
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bt->port = port;
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bt->irq = irq;
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bt->drq = drq;
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bt->tag = rman_get_bustag(port);
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bt->bsh = rman_get_bushandle(port);
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}
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void
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bt_free_softc(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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switch (bt->init_level) {
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default:
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case 11:
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bus_dmamap_unload(bt->sense_dmat, bt->sense_dmamap);
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case 10:
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bus_dmamem_free(bt->sense_dmat, bt->sense_buffers,
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bt->sense_dmamap);
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case 9:
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bus_dma_tag_destroy(bt->sense_dmat);
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case 8:
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{
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struct sg_map_node *sg_map;
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while ((sg_map = SLIST_FIRST(&bt->sg_maps))!= NULL) {
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SLIST_REMOVE_HEAD(&bt->sg_maps, links);
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bus_dmamap_unload(bt->sg_dmat,
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sg_map->sg_dmamap);
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bus_dmamem_free(bt->sg_dmat, sg_map->sg_vaddr,
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sg_map->sg_dmamap);
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free(sg_map, M_DEVBUF);
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}
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bus_dma_tag_destroy(bt->sg_dmat);
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}
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case 7:
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bus_dmamap_unload(bt->ccb_dmat, bt->ccb_dmamap);
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case 6:
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bus_dmamem_free(bt->ccb_dmat, bt->bt_ccb_array,
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bt->ccb_dmamap);
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bus_dmamap_destroy(bt->ccb_dmat, bt->ccb_dmamap);
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case 5:
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bus_dma_tag_destroy(bt->ccb_dmat);
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case 4:
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bus_dmamap_unload(bt->mailbox_dmat, bt->mailbox_dmamap);
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case 3:
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bus_dmamem_free(bt->mailbox_dmat, bt->in_boxes,
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bt->mailbox_dmamap);
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bus_dmamap_destroy(bt->mailbox_dmat, bt->mailbox_dmamap);
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case 2:
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bus_dma_tag_destroy(bt->buffer_dmat);
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case 1:
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bus_dma_tag_destroy(bt->mailbox_dmat);
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case 0:
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break;
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}
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}
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int
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bt_port_probe(device_t dev, struct bt_probe_info *info)
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{
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struct bt_softc *bt = device_get_softc(dev);
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config_data_t config_data;
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int error;
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/* See if there is really a card present */
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if (bt_probe(dev) || bt_fetch_adapter_info(dev))
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return(1);
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/*
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* Determine our IRQ, and DMA settings and
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* export them to the configuration system.
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*/
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error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
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(u_int8_t*)&config_data, sizeof(config_data),
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DEFAULT_CMD_TIMEOUT);
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if (error != 0) {
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printf("bt_port_probe: Could not determine IRQ or DMA "
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"settings for adapter.\n");
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return (1);
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}
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if (bt->model[0] == '5') {
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/* DMA settings only make sense for ISA cards */
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switch (config_data.dma_chan) {
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case DMA_CHAN_5:
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info->drq = 5;
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break;
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case DMA_CHAN_6:
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info->drq = 6;
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break;
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case DMA_CHAN_7:
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info->drq = 7;
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break;
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default:
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printf("bt_port_probe: Invalid DMA setting "
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"detected for adapter.\n");
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return (1);
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}
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} else {
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/* VL/EISA/PCI DMA */
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info->drq = -1;
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}
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switch (config_data.irq) {
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case IRQ_9:
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case IRQ_10:
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case IRQ_11:
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case IRQ_12:
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case IRQ_14:
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case IRQ_15:
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info->irq = ffs(config_data.irq) + 8;
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break;
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default:
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printf("bt_port_probe: Invalid IRQ setting %x"
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"detected for adapter.\n", config_data.irq);
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return (1);
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}
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return (0);
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}
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/*
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* Probe the adapter and verify that the card is a BusLogic.
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*/
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int
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bt_probe(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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esetup_info_data_t esetup_info;
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u_int status;
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u_int intstat;
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u_int geometry;
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int error;
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u_int8_t param;
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/*
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* See if the three I/O ports look reasonable.
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* Touch the minimal number of registers in the
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* failure case.
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*/
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status = bt_inb(bt, STATUS_REG);
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if ((status == 0)
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|| (status & (DIAG_ACTIVE|CMD_REG_BUSY|
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STATUS_REG_RSVD|CMD_INVALID)) != 0) {
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if (bootverbose)
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device_printf(dev, "Failed Status Reg Test - %x\n",
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status);
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return (ENXIO);
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}
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intstat = bt_inb(bt, INTSTAT_REG);
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if ((intstat & INTSTAT_REG_RSVD) != 0) {
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device_printf(dev, "Failed Intstat Reg Test\n");
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return (ENXIO);
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}
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geometry = bt_inb(bt, GEOMETRY_REG);
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if (geometry == 0xFF) {
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if (bootverbose)
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device_printf(dev, "Failed Geometry Reg Test\n");
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return (ENXIO);
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}
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/*
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* Looking good so far. Final test is to reset the
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* adapter and attempt to fetch the extended setup
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* information. This should filter out all 1542 cards.
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*/
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if ((error = btreset(bt, /*hard_reset*/TRUE)) != 0) {
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if (bootverbose)
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device_printf(dev, "Failed Reset\n");
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return (ENXIO);
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}
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param = sizeof(esetup_info);
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error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, ¶m, /*parmlen*/1,
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(u_int8_t*)&esetup_info, sizeof(esetup_info),
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DEFAULT_CMD_TIMEOUT);
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if (error != 0) {
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return (ENXIO);
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}
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return (0);
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}
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|
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/*
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* Pull the boards setup information and record it in our softc.
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*/
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int
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bt_fetch_adapter_info(device_t dev)
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{
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struct bt_softc *bt = device_get_softc(dev);
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board_id_data_t board_id;
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esetup_info_data_t esetup_info;
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config_data_t config_data;
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int error;
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u_int8_t length_param;
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/* First record the firmware version */
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error = bt_cmd(bt, BOP_INQUIRE_BOARD_ID, NULL, /*parmlen*/0,
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(u_int8_t*)&board_id, sizeof(board_id),
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DEFAULT_CMD_TIMEOUT);
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if (error != 0) {
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device_printf(dev, "bt_fetch_adapter_info - Failed Get Board Info\n");
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return (error);
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}
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bt->firmware_ver[0] = board_id.firmware_rev_major;
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bt->firmware_ver[1] = '.';
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bt->firmware_ver[2] = board_id.firmware_rev_minor;
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bt->firmware_ver[3] = '\0';
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|
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/*
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* Depending on the firmware major and minor version,
|
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* we may be able to fetch additional minor version info.
|
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*/
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if (bt->firmware_ver[0] > '0') {
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error = bt_cmd(bt, BOP_INQUIRE_FW_VER_3DIG, NULL, /*parmlen*/0,
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(u_int8_t*)&bt->firmware_ver[3], 1,
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DEFAULT_CMD_TIMEOUT);
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if (error != 0) {
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device_printf(dev,
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"bt_fetch_adapter_info - Failed Get "
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"Firmware 3rd Digit\n");
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return (error);
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}
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if (bt->firmware_ver[3] == ' ')
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bt->firmware_ver[3] = '\0';
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bt->firmware_ver[4] = '\0';
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}
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if (strcmp(bt->firmware_ver, "3.3") >= 0) {
|
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|
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error = bt_cmd(bt, BOP_INQUIRE_FW_VER_4DIG, NULL, /*parmlen*/0,
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(u_int8_t*)&bt->firmware_ver[4], 1,
|
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DEFAULT_CMD_TIMEOUT);
|
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if (error != 0) {
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device_printf(dev,
|
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"bt_fetch_adapter_info - Failed Get "
|
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"Firmware 4th Digit\n");
|
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return (error);
|
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}
|
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if (bt->firmware_ver[4] == ' ')
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bt->firmware_ver[4] = '\0';
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bt->firmware_ver[5] = '\0';
|
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}
|
|
|
|
/*
|
|
* Some boards do not handle the "recently documented"
|
|
* Inquire Board Model Number command correctly or do not give
|
|
* exact information. Use the Firmware and Extended Setup
|
|
* information in these cases to come up with the right answer.
|
|
* The major firmware revision number indicates:
|
|
*
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|
* 5.xx BusLogic "W" Series Host Adapters:
|
|
* BT-948/958/958D
|
|
* 4.xx BusLogic "C" Series Host Adapters:
|
|
* BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
|
|
* 3.xx BusLogic "S" Series Host Adapters:
|
|
* BT-747S/747D/757S/757D/445S/545S/542D
|
|
* BT-542B/742A (revision H)
|
|
* 2.xx BusLogic "A" Series Host Adapters:
|
|
* BT-542B/742A (revision G and below)
|
|
* 0.xx AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
|
|
*/
|
|
length_param = sizeof(esetup_info);
|
|
error = bt_cmd(bt, BOP_INQUIRE_ESETUP_INFO, &length_param, /*parmlen*/1,
|
|
(u_int8_t*)&esetup_info, sizeof(esetup_info),
|
|
DEFAULT_CMD_TIMEOUT);
|
|
if (error != 0) {
|
|
return (error);
|
|
}
|
|
|
|
bt->bios_addr = esetup_info.bios_addr << 12;
|
|
|
|
if (esetup_info.bus_type == 'A'
|
|
&& bt->firmware_ver[0] == '2') {
|
|
snprintf(bt->model, sizeof(bt->model), "542B");
|
|
} else if (esetup_info.bus_type == 'E'
|
|
&& (strncmp(bt->firmware_ver, "2.1", 3) == 0
|
|
|| strncmp(bt->firmware_ver, "2.20", 4) == 0)) {
|
|
snprintf(bt->model, sizeof(bt->model), "742A");
|
|
} else if (esetup_info.bus_type == 'E'
|
|
&& bt->firmware_ver[0] == '0') {
|
|
/* AMI FastDisk EISA Series 441 0.x */
|
|
snprintf(bt->model, sizeof(bt->model), "747A");
|
|
} else {
|
|
ha_model_data_t model_data;
|
|
int i;
|
|
|
|
length_param = sizeof(model_data);
|
|
error = bt_cmd(bt, BOP_INQUIRE_MODEL, &length_param, 1,
|
|
(u_int8_t*)&model_data, sizeof(model_data),
|
|
DEFAULT_CMD_TIMEOUT);
|
|
if (error != 0) {
|
|
device_printf(dev,
|
|
"bt_fetch_adapter_info - Failed Inquire "
|
|
"Model Number\n");
|
|
return (error);
|
|
}
|
|
for (i = 0; i < sizeof(model_data.ascii_model); i++) {
|
|
bt->model[i] = model_data.ascii_model[i];
|
|
if (bt->model[i] == ' ')
|
|
break;
|
|
}
|
|
bt->model[i] = '\0';
|
|
}
|
|
|
|
bt->level_trigger_ints = esetup_info.level_trigger_ints ? 1 : 0;
|
|
|
|
/* SG element limits */
|
|
bt->max_sg = esetup_info.max_sg;
|
|
|
|
/* Set feature flags */
|
|
bt->wide_bus = esetup_info.wide_bus;
|
|
bt->diff_bus = esetup_info.diff_bus;
|
|
bt->ultra_scsi = esetup_info.ultra_scsi;
|
|
|
|
if ((bt->firmware_ver[0] == '5')
|
|
|| (bt->firmware_ver[0] == '4' && bt->wide_bus))
|
|
bt->extended_lun = TRUE;
|
|
|
|
bt->strict_rr = (strcmp(bt->firmware_ver, "3.31") >= 0);
|
|
|
|
bt->extended_trans =
|
|
((bt_inb(bt, GEOMETRY_REG) & EXTENDED_TRANSLATION) != 0);
|
|
|
|
/*
|
|
* Determine max CCB count and whether tagged queuing is
|
|
* available based on controller type. Tagged queuing
|
|
* only works on 'W' series adapters, 'C' series adapters
|
|
* with firmware of rev 4.42 and higher, and 'S' series
|
|
* adapters with firmware of rev 3.35 and higher. The
|
|
* maximum CCB counts are as follows:
|
|
*
|
|
* 192 BT-948/958/958D
|
|
* 100 BT-946C/956C/956CD/747C/757C/757CD/445C
|
|
* 50 BT-545C/540CF
|
|
* 30 BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
|
|
*/
|
|
if (bt->firmware_ver[0] == '5') {
|
|
bt->max_ccbs = 192;
|
|
bt->tag_capable = TRUE;
|
|
} else if (bt->firmware_ver[0] == '4') {
|
|
if (bt->model[0] == '5')
|
|
bt->max_ccbs = 50;
|
|
else
|
|
bt->max_ccbs = 100;
|
|
bt->tag_capable = (strcmp(bt->firmware_ver, "4.22") >= 0);
|
|
} else {
|
|
bt->max_ccbs = 30;
|
|
if (bt->firmware_ver[0] == '3'
|
|
&& (strcmp(bt->firmware_ver, "3.35") >= 0))
|
|
bt->tag_capable = TRUE;
|
|
else
|
|
bt->tag_capable = FALSE;
|
|
}
|
|
|
|
if (bt->tag_capable != FALSE)
|
|
bt->tags_permitted = ALL_TARGETS;
|
|
|
|
/* Determine Sync/Wide/Disc settings */
|
|
if (bt->firmware_ver[0] >= '4') {
|
|
auto_scsi_data_t auto_scsi_data;
|
|
fetch_lram_params_t fetch_lram_params;
|
|
int error;
|
|
|
|
/*
|
|
* These settings are stored in the
|
|
* AutoSCSI data in LRAM of 'W' and 'C'
|
|
* adapters.
|
|
*/
|
|
fetch_lram_params.offset = AUTO_SCSI_BYTE_OFFSET;
|
|
fetch_lram_params.response_len = sizeof(auto_scsi_data);
|
|
error = bt_cmd(bt, BOP_FETCH_LRAM,
|
|
(u_int8_t*)&fetch_lram_params,
|
|
sizeof(fetch_lram_params),
|
|
(u_int8_t*)&auto_scsi_data,
|
|
sizeof(auto_scsi_data), DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0) {
|
|
device_printf(dev,
|
|
"bt_fetch_adapter_info - Failed "
|
|
"Get Auto SCSI Info\n");
|
|
return (error);
|
|
}
|
|
|
|
bt->disc_permitted = auto_scsi_data.low_disc_permitted
|
|
| (auto_scsi_data.high_disc_permitted << 8);
|
|
bt->sync_permitted = auto_scsi_data.low_sync_permitted
|
|
| (auto_scsi_data.high_sync_permitted << 8);
|
|
bt->fast_permitted = auto_scsi_data.low_fast_permitted
|
|
| (auto_scsi_data.high_fast_permitted << 8);
|
|
bt->ultra_permitted = auto_scsi_data.low_ultra_permitted
|
|
| (auto_scsi_data.high_ultra_permitted << 8);
|
|
bt->wide_permitted = auto_scsi_data.low_wide_permitted
|
|
| (auto_scsi_data.high_wide_permitted << 8);
|
|
|
|
if (bt->ultra_scsi == FALSE)
|
|
bt->ultra_permitted = 0;
|
|
|
|
if (bt->wide_bus == FALSE)
|
|
bt->wide_permitted = 0;
|
|
} else {
|
|
/*
|
|
* 'S' and 'A' series have this information in the setup
|
|
* information structure.
|
|
*/
|
|
setup_data_t setup_info;
|
|
|
|
length_param = sizeof(setup_info);
|
|
error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, &length_param,
|
|
/*paramlen*/1, (u_int8_t*)&setup_info,
|
|
sizeof(setup_info), DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0) {
|
|
device_printf(dev,
|
|
"bt_fetch_adapter_info - Failed "
|
|
"Get Setup Info\n");
|
|
return (error);
|
|
}
|
|
|
|
if (setup_info.initiate_sync != 0) {
|
|
bt->sync_permitted = ALL_TARGETS;
|
|
|
|
if (bt->model[0] == '7') {
|
|
if (esetup_info.sync_neg10MB != 0)
|
|
bt->fast_permitted = ALL_TARGETS;
|
|
if (strcmp(bt->model, "757") == 0)
|
|
bt->wide_permitted = ALL_TARGETS;
|
|
}
|
|
}
|
|
bt->disc_permitted = ALL_TARGETS;
|
|
}
|
|
|
|
/* We need as many mailboxes as we can have ccbs */
|
|
bt->num_boxes = bt->max_ccbs;
|
|
|
|
/* Determine our SCSI ID */
|
|
|
|
error = bt_cmd(bt, BOP_INQUIRE_CONFIG, NULL, /*parmlen*/0,
|
|
(u_int8_t*)&config_data, sizeof(config_data),
|
|
DEFAULT_CMD_TIMEOUT);
|
|
if (error != 0) {
|
|
device_printf(dev,
|
|
"bt_fetch_adapter_info - Failed Get Config\n");
|
|
return (error);
|
|
}
|
|
bt->scsi_id = config_data.scsi_id;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Start the board, ready for normal operation
|
|
*/
|
|
int
|
|
bt_init(device_t dev)
|
|
{
|
|
struct bt_softc *bt = device_get_softc(dev);
|
|
|
|
/* Announce the Adapter */
|
|
device_printf(dev, "BT-%s FW Rev. %s ", bt->model, bt->firmware_ver);
|
|
|
|
if (bt->ultra_scsi != 0)
|
|
printf("Ultra ");
|
|
|
|
if (bt->wide_bus != 0)
|
|
printf("Wide ");
|
|
else
|
|
printf("Narrow ");
|
|
|
|
if (bt->diff_bus != 0)
|
|
printf("Diff ");
|
|
|
|
printf("SCSI Host Adapter, SCSI ID %d, %d CCBs\n", bt->scsi_id,
|
|
bt->max_ccbs);
|
|
|
|
/*
|
|
* Create our DMA tags. These tags define the kinds of device
|
|
* accessible memory allocations and memory mappings we will
|
|
* need to perform during normal operation.
|
|
*
|
|
* Unless we need to further restrict the allocation, we rely
|
|
* on the restrictions of the parent dmat, hence the common
|
|
* use of MAXADDR and MAXSIZE.
|
|
*/
|
|
|
|
/* DMA tag for mapping buffers into device visible space. */
|
|
if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0,
|
|
/*lowaddr*/BUS_SPACE_MAXADDR,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL, /*filterarg*/NULL,
|
|
/*maxsize*/MAXBSIZE, /*nsegments*/BT_NSEG,
|
|
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*flags*/BUS_DMA_ALLOCNOW,
|
|
&bt->buffer_dmat) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
/* DMA tag for our mailboxes */
|
|
if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0,
|
|
/*lowaddr*/BUS_SPACE_MAXADDR,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL, /*filterarg*/NULL,
|
|
bt->num_boxes * (sizeof(bt_mbox_in_t)
|
|
+ sizeof(bt_mbox_out_t)),
|
|
/*nsegments*/1,
|
|
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*flags*/0, &bt->mailbox_dmat) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
|
|
/* Allocation for our mailboxes */
|
|
if (bus_dmamem_alloc(bt->mailbox_dmat, (void **)&bt->out_boxes,
|
|
BUS_DMA_NOWAIT, &bt->mailbox_dmamap) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
|
|
/* And permanently map them */
|
|
bus_dmamap_load(bt->mailbox_dmat, bt->mailbox_dmamap,
|
|
bt->out_boxes,
|
|
bt->num_boxes * (sizeof(bt_mbox_in_t)
|
|
+ sizeof(bt_mbox_out_t)),
|
|
btmapmboxes, bt, /*flags*/0);
|
|
|
|
bt->init_level++;
|
|
|
|
bt->in_boxes = (bt_mbox_in_t *)&bt->out_boxes[bt->num_boxes];
|
|
|
|
btinitmboxes(bt);
|
|
|
|
/* DMA tag for our ccb structures */
|
|
if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0,
|
|
/*lowaddr*/BUS_SPACE_MAXADDR,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL, /*filterarg*/NULL,
|
|
bt->max_ccbs * sizeof(struct bt_ccb),
|
|
/*nsegments*/1,
|
|
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*flags*/0, &bt->ccb_dmat) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
|
|
/* Allocation for our ccbs */
|
|
if (bus_dmamem_alloc(bt->ccb_dmat, (void **)&bt->bt_ccb_array,
|
|
BUS_DMA_NOWAIT, &bt->ccb_dmamap) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
|
|
/* And permanently map them */
|
|
bus_dmamap_load(bt->ccb_dmat, bt->ccb_dmamap,
|
|
bt->bt_ccb_array,
|
|
bt->max_ccbs * sizeof(struct bt_ccb),
|
|
btmapccbs, bt, /*flags*/0);
|
|
|
|
bt->init_level++;
|
|
|
|
/* DMA tag for our S/G structures. We allocate in page sized chunks */
|
|
if (bus_dma_tag_create(bt->parent_dmat, /*alignment*/1, /*boundary*/0,
|
|
/*lowaddr*/BUS_SPACE_MAXADDR,
|
|
/*highaddr*/BUS_SPACE_MAXADDR,
|
|
/*filter*/NULL, /*filterarg*/NULL,
|
|
PAGE_SIZE, /*nsegments*/1,
|
|
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
|
|
/*flags*/0, &bt->sg_dmat) != 0) {
|
|
goto error_exit;
|
|
}
|
|
|
|
bt->init_level++;
|
|
|
|
/* Perform initial CCB allocation */
|
|
bzero(bt->bt_ccb_array, bt->max_ccbs * sizeof(struct bt_ccb));
|
|
btallocccbs(bt);
|
|
|
|
if (bt->num_ccbs == 0) {
|
|
device_printf(dev,
|
|
"bt_init - Unable to allocate initial ccbs\n");
|
|
goto error_exit;
|
|
}
|
|
|
|
/*
|
|
* Note that we are going and return (to probe)
|
|
*/
|
|
return 0;
|
|
|
|
error_exit:
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
int
|
|
bt_attach(device_t dev)
|
|
{
|
|
struct bt_softc *bt = device_get_softc(dev);
|
|
int tagged_dev_openings;
|
|
struct cam_devq *devq;
|
|
int error;
|
|
|
|
/*
|
|
* We reserve 1 ccb for error recovery, so don't
|
|
* tell the XPT about it.
|
|
*/
|
|
if (bt->tag_capable != 0)
|
|
tagged_dev_openings = bt->max_ccbs - 1;
|
|
else
|
|
tagged_dev_openings = 0;
|
|
|
|
/*
|
|
* Create the device queue for our SIM.
|
|
*/
|
|
devq = cam_simq_alloc(bt->max_ccbs - 1);
|
|
if (devq == NULL)
|
|
return (ENOMEM);
|
|
|
|
/*
|
|
* Construct our SIM entry
|
|
*/
|
|
bt->sim = cam_sim_alloc(btaction, btpoll, "bt", bt, bt->unit,
|
|
2, tagged_dev_openings, devq);
|
|
if (bt->sim == NULL) {
|
|
cam_simq_free(devq);
|
|
return (ENOMEM);
|
|
}
|
|
|
|
if (xpt_bus_register(bt->sim, 0) != CAM_SUCCESS) {
|
|
cam_sim_free(bt->sim, /*free_devq*/TRUE);
|
|
return (ENXIO);
|
|
}
|
|
|
|
if (xpt_create_path(&bt->path, /*periph*/NULL,
|
|
cam_sim_path(bt->sim), CAM_TARGET_WILDCARD,
|
|
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
|
|
xpt_bus_deregister(cam_sim_path(bt->sim));
|
|
cam_sim_free(bt->sim, /*free_devq*/TRUE);
|
|
return (ENXIO);
|
|
}
|
|
|
|
/*
|
|
* Setup interrupt.
|
|
*/
|
|
error = bus_setup_intr(dev, bt->irq, INTR_TYPE_CAM,
|
|
bt_intr, bt, &bt->ih);
|
|
if (error) {
|
|
device_printf(dev, "bus_setup_intr() failed: %d\n", error);
|
|
return (error);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
bt_check_probed_iop(u_int ioport)
|
|
{
|
|
u_int i;
|
|
|
|
for (i = 0; i < BT_NUM_ISAPORTS; i++) {
|
|
if (bt_isa_ports[i].addr == ioport) {
|
|
if (bt_isa_ports[i].probed != 0)
|
|
return (1);
|
|
else {
|
|
return (0);
|
|
}
|
|
}
|
|
}
|
|
return (1);
|
|
}
|
|
|
|
void
|
|
bt_mark_probed_bio(isa_compat_io_t port)
|
|
{
|
|
if (port < BIO_DISABLED)
|
|
bt_mark_probed_iop(bt_board_ports[port]);
|
|
}
|
|
|
|
void
|
|
bt_mark_probed_iop(u_int ioport)
|
|
{
|
|
u_int i;
|
|
|
|
for (i = 0; i < BT_NUM_ISAPORTS; i++) {
|
|
if (ioport == bt_isa_ports[i].addr) {
|
|
bt_isa_ports[i].probed = 1;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
bt_find_probe_range(int ioport, int *port_index, int *max_port_index)
|
|
{
|
|
if (ioport > 0) {
|
|
int i;
|
|
|
|
for (i = 0;i < BT_NUM_ISAPORTS; i++)
|
|
if (ioport <= bt_isa_ports[i].addr)
|
|
break;
|
|
if ((i >= BT_NUM_ISAPORTS)
|
|
|| (ioport != bt_isa_ports[i].addr)) {
|
|
printf("
|
|
bt_isa_probe: Invalid baseport of 0x%x specified.
|
|
bt_isa_probe: Nearest valid baseport is 0x%x.
|
|
bt_isa_probe: Failing probe.\n",
|
|
ioport,
|
|
(i < BT_NUM_ISAPORTS)
|
|
? bt_isa_ports[i].addr
|
|
: bt_isa_ports[BT_NUM_ISAPORTS - 1].addr);
|
|
*port_index = *max_port_index = -1;
|
|
return;
|
|
}
|
|
*port_index = *max_port_index = bt_isa_ports[i].bio;
|
|
} else {
|
|
*port_index = 0;
|
|
*max_port_index = BT_NUM_ISAPORTS - 1;
|
|
}
|
|
}
|
|
|
|
int
|
|
bt_iop_from_bio(isa_compat_io_t bio_index)
|
|
{
|
|
if (bio_index >= 0 && bio_index < BT_NUM_ISAPORTS)
|
|
return (bt_board_ports[bio_index]);
|
|
return (-1);
|
|
}
|
|
|
|
|
|
static void
|
|
btallocccbs(struct bt_softc *bt)
|
|
{
|
|
struct bt_ccb *next_ccb;
|
|
struct sg_map_node *sg_map;
|
|
bus_addr_t physaddr;
|
|
bt_sg_t *segs;
|
|
int newcount;
|
|
int i;
|
|
|
|
if (bt->num_ccbs >= bt->max_ccbs)
|
|
/* Can't allocate any more */
|
|
return;
|
|
|
|
next_ccb = &bt->bt_ccb_array[bt->num_ccbs];
|
|
|
|
sg_map = malloc(sizeof(*sg_map), M_DEVBUF, M_NOWAIT);
|
|
|
|
if (sg_map == NULL)
|
|
goto error_exit;
|
|
|
|
/* Allocate S/G space for the next batch of CCBS */
|
|
if (bus_dmamem_alloc(bt->sg_dmat, (void **)&sg_map->sg_vaddr,
|
|
BUS_DMA_NOWAIT, &sg_map->sg_dmamap) != 0) {
|
|
free(sg_map, M_DEVBUF);
|
|
goto error_exit;
|
|
}
|
|
|
|
SLIST_INSERT_HEAD(&bt->sg_maps, sg_map, links);
|
|
|
|
bus_dmamap_load(bt->sg_dmat, sg_map->sg_dmamap, sg_map->sg_vaddr,
|
|
PAGE_SIZE, btmapsgs, bt, /*flags*/0);
|
|
|
|
segs = sg_map->sg_vaddr;
|
|
physaddr = sg_map->sg_physaddr;
|
|
|
|
newcount = (PAGE_SIZE / (BT_NSEG * sizeof(bt_sg_t)));
|
|
for (i = 0; bt->num_ccbs < bt->max_ccbs && i < newcount; i++) {
|
|
int error;
|
|
|
|
next_ccb->sg_list = segs;
|
|
next_ccb->sg_list_phys = physaddr;
|
|
next_ccb->flags = BCCB_FREE;
|
|
error = bus_dmamap_create(bt->buffer_dmat, /*flags*/0,
|
|
&next_ccb->dmamap);
|
|
if (error != 0)
|
|
break;
|
|
SLIST_INSERT_HEAD(&bt->free_bt_ccbs, next_ccb, links);
|
|
segs += BT_NSEG;
|
|
physaddr += (BT_NSEG * sizeof(bt_sg_t));
|
|
next_ccb++;
|
|
bt->num_ccbs++;
|
|
}
|
|
|
|
/* Reserve a CCB for error recovery */
|
|
if (bt->recovery_bccb == NULL) {
|
|
bt->recovery_bccb = SLIST_FIRST(&bt->free_bt_ccbs);
|
|
SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
|
|
}
|
|
|
|
if (SLIST_FIRST(&bt->free_bt_ccbs) != NULL)
|
|
return;
|
|
|
|
error_exit:
|
|
device_printf(bt->dev, "Can't malloc BCCBs\n");
|
|
}
|
|
|
|
static __inline void
|
|
btfreeccb(struct bt_softc *bt, struct bt_ccb *bccb)
|
|
{
|
|
int s;
|
|
|
|
s = splcam();
|
|
if ((bccb->flags & BCCB_ACTIVE) != 0)
|
|
LIST_REMOVE(&bccb->ccb->ccb_h, sim_links.le);
|
|
if (bt->resource_shortage != 0
|
|
&& (bccb->ccb->ccb_h.status & CAM_RELEASE_SIMQ) == 0) {
|
|
bccb->ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
|
|
bt->resource_shortage = FALSE;
|
|
}
|
|
bccb->flags = BCCB_FREE;
|
|
SLIST_INSERT_HEAD(&bt->free_bt_ccbs, bccb, links);
|
|
bt->active_ccbs--;
|
|
splx(s);
|
|
}
|
|
|
|
static __inline struct bt_ccb*
|
|
btgetccb(struct bt_softc *bt)
|
|
{
|
|
struct bt_ccb* bccb;
|
|
int s;
|
|
|
|
s = splcam();
|
|
if ((bccb = SLIST_FIRST(&bt->free_bt_ccbs)) != NULL) {
|
|
SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
|
|
bt->active_ccbs++;
|
|
} else {
|
|
btallocccbs(bt);
|
|
bccb = SLIST_FIRST(&bt->free_bt_ccbs);
|
|
if (bccb != NULL) {
|
|
SLIST_REMOVE_HEAD(&bt->free_bt_ccbs, links);
|
|
bt->active_ccbs++;
|
|
}
|
|
}
|
|
splx(s);
|
|
|
|
return (bccb);
|
|
}
|
|
|
|
static void
|
|
btaction(struct cam_sim *sim, union ccb *ccb)
|
|
{
|
|
struct bt_softc *bt;
|
|
|
|
CAM_DEBUG(ccb->ccb_h.path, CAM_DEBUG_TRACE, ("btaction\n"));
|
|
|
|
bt = (struct bt_softc *)cam_sim_softc(sim);
|
|
|
|
switch (ccb->ccb_h.func_code) {
|
|
/* Common cases first */
|
|
case XPT_SCSI_IO: /* Execute the requested I/O operation */
|
|
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
|
|
{
|
|
struct bt_ccb *bccb;
|
|
struct bt_hccb *hccb;
|
|
|
|
/*
|
|
* get a bccb to use.
|
|
*/
|
|
if ((bccb = btgetccb(bt)) == NULL) {
|
|
int s;
|
|
|
|
s = splcam();
|
|
bt->resource_shortage = TRUE;
|
|
splx(s);
|
|
xpt_freeze_simq(bt->sim, /*count*/1);
|
|
ccb->ccb_h.status = CAM_REQUEUE_REQ;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
hccb = &bccb->hccb;
|
|
|
|
/*
|
|
* So we can find the BCCB when an abort is requested
|
|
*/
|
|
bccb->ccb = ccb;
|
|
ccb->ccb_h.ccb_bccb_ptr = bccb;
|
|
ccb->ccb_h.ccb_bt_ptr = bt;
|
|
|
|
/*
|
|
* Put all the arguments for the xfer in the bccb
|
|
*/
|
|
hccb->target_id = ccb->ccb_h.target_id;
|
|
hccb->target_lun = ccb->ccb_h.target_lun;
|
|
hccb->btstat = 0;
|
|
hccb->sdstat = 0;
|
|
|
|
if (ccb->ccb_h.func_code == XPT_SCSI_IO) {
|
|
struct ccb_scsiio *csio;
|
|
struct ccb_hdr *ccbh;
|
|
|
|
csio = &ccb->csio;
|
|
ccbh = &csio->ccb_h;
|
|
hccb->opcode = INITIATOR_CCB_WRESID;
|
|
hccb->datain = (ccb->ccb_h.flags & CAM_DIR_IN) ? 1 : 0;
|
|
hccb->dataout =(ccb->ccb_h.flags & CAM_DIR_OUT) ? 1 : 0;
|
|
hccb->cmd_len = csio->cdb_len;
|
|
if (hccb->cmd_len > sizeof(hccb->scsi_cdb)) {
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
hccb->sense_len = csio->sense_len;
|
|
if ((ccbh->flags & CAM_TAG_ACTION_VALID) != 0
|
|
&& ccb->csio.tag_action != CAM_TAG_ACTION_NONE) {
|
|
hccb->tag_enable = TRUE;
|
|
hccb->tag_type = (ccb->csio.tag_action & 0x3);
|
|
} else {
|
|
hccb->tag_enable = FALSE;
|
|
hccb->tag_type = 0;
|
|
}
|
|
if ((ccbh->flags & CAM_CDB_POINTER) != 0) {
|
|
if ((ccbh->flags & CAM_CDB_PHYS) == 0) {
|
|
bcopy(csio->cdb_io.cdb_ptr,
|
|
hccb->scsi_cdb, hccb->cmd_len);
|
|
} else {
|
|
/* I guess I could map it in... */
|
|
ccbh->status = CAM_REQ_INVALID;
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
} else {
|
|
bcopy(csio->cdb_io.cdb_bytes,
|
|
hccb->scsi_cdb, hccb->cmd_len);
|
|
}
|
|
/* If need be, bounce our sense buffer */
|
|
if (bt->sense_buffers != NULL) {
|
|
hccb->sense_addr = btsensepaddr(bt, bccb);
|
|
} else {
|
|
hccb->sense_addr = vtophys(&csio->sense_data);
|
|
}
|
|
/*
|
|
* If we have any data to send with this command,
|
|
* map it into bus space.
|
|
*/
|
|
/* Only use S/G if there is a transfer */
|
|
if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
|
|
if ((ccbh->flags & CAM_SCATTER_VALID) == 0) {
|
|
/*
|
|
* We've been given a pointer
|
|
* to a single buffer.
|
|
*/
|
|
if ((ccbh->flags & CAM_DATA_PHYS)==0) {
|
|
int s;
|
|
int error;
|
|
|
|
s = splsoftvm();
|
|
error = bus_dmamap_load(
|
|
bt->buffer_dmat,
|
|
bccb->dmamap,
|
|
csio->data_ptr,
|
|
csio->dxfer_len,
|
|
btexecuteccb,
|
|
bccb,
|
|
/*flags*/0);
|
|
if (error == EINPROGRESS) {
|
|
/*
|
|
* So as to maintain
|
|
* ordering, freeze the
|
|
* controller queue
|
|
* until our mapping is
|
|
* returned.
|
|
*/
|
|
xpt_freeze_simq(bt->sim,
|
|
1);
|
|
csio->ccb_h.status |=
|
|
CAM_RELEASE_SIMQ;
|
|
}
|
|
splx(s);
|
|
} else {
|
|
struct bus_dma_segment seg;
|
|
|
|
/* Pointer to physical buffer */
|
|
seg.ds_addr =
|
|
(bus_addr_t)csio->data_ptr;
|
|
seg.ds_len = csio->dxfer_len;
|
|
btexecuteccb(bccb, &seg, 1, 0);
|
|
}
|
|
} else {
|
|
struct bus_dma_segment *segs;
|
|
|
|
if ((ccbh->flags & CAM_DATA_PHYS) != 0)
|
|
panic("btaction - Physical "
|
|
"segment pointers "
|
|
"unsupported");
|
|
|
|
if ((ccbh->flags&CAM_SG_LIST_PHYS)==0)
|
|
panic("btaction - Virtual "
|
|
"segment addresses "
|
|
"unsupported");
|
|
|
|
/* Just use the segments provided */
|
|
segs = (struct bus_dma_segment *)
|
|
csio->data_ptr;
|
|
btexecuteccb(bccb, segs,
|
|
csio->sglist_cnt, 0);
|
|
}
|
|
} else {
|
|
btexecuteccb(bccb, NULL, 0, 0);
|
|
}
|
|
} else {
|
|
hccb->opcode = INITIATOR_BUS_DEV_RESET;
|
|
/* No data transfer */
|
|
hccb->datain = TRUE;
|
|
hccb->dataout = TRUE;
|
|
hccb->cmd_len = 0;
|
|
hccb->sense_len = 0;
|
|
hccb->tag_enable = FALSE;
|
|
hccb->tag_type = 0;
|
|
btexecuteccb(bccb, NULL, 0, 0);
|
|
}
|
|
break;
|
|
}
|
|
case XPT_EN_LUN: /* Enable LUN as a target */
|
|
case XPT_TARGET_IO: /* Execute target I/O request */
|
|
case XPT_ACCEPT_TARGET_IO: /* Accept Host Target Mode CDB */
|
|
case XPT_CONT_TARGET_IO: /* Continue Host Target I/O Connection*/
|
|
case XPT_ABORT: /* Abort the specified CCB */
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
{
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_PROVIDE_FAIL;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_GET_TRAN_SETTINGS:
|
|
/* Get default/user set transfer settings for the target */
|
|
{
|
|
struct ccb_trans_settings *cts;
|
|
u_int target_mask;
|
|
|
|
cts = &ccb->cts;
|
|
target_mask = 0x01 << ccb->ccb_h.target_id;
|
|
if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
|
|
cts->flags = 0;
|
|
if ((bt->disc_permitted & target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_DISC_ENB;
|
|
if ((bt->tags_permitted & target_mask) != 0)
|
|
cts->flags |= CCB_TRANS_TAG_ENB;
|
|
if ((bt->wide_permitted & target_mask) != 0)
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
|
|
else
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
|
|
if ((bt->ultra_permitted & target_mask) != 0)
|
|
cts->sync_period = 12;
|
|
else if ((bt->fast_permitted & target_mask) != 0)
|
|
cts->sync_period = 25;
|
|
else if ((bt->sync_permitted & target_mask) != 0)
|
|
cts->sync_period = 50;
|
|
else
|
|
cts->sync_period = 0;
|
|
|
|
if (cts->sync_period != 0)
|
|
cts->sync_offset = 15;
|
|
|
|
cts->valid = CCB_TRANS_SYNC_RATE_VALID
|
|
| CCB_TRANS_SYNC_OFFSET_VALID
|
|
| CCB_TRANS_BUS_WIDTH_VALID
|
|
| CCB_TRANS_DISC_VALID
|
|
| CCB_TRANS_TQ_VALID;
|
|
} else {
|
|
btfetchtransinfo(bt, cts);
|
|
}
|
|
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_CALC_GEOMETRY:
|
|
{
|
|
struct ccb_calc_geometry *ccg;
|
|
u_int32_t size_mb;
|
|
u_int32_t secs_per_cylinder;
|
|
|
|
ccg = &ccb->ccg;
|
|
size_mb = ccg->volume_size
|
|
/ ((1024L * 1024L) / ccg->block_size);
|
|
|
|
if (size_mb >= 1024 && (bt->extended_trans != 0)) {
|
|
if (size_mb >= 2048) {
|
|
ccg->heads = 255;
|
|
ccg->secs_per_track = 63;
|
|
} else {
|
|
ccg->heads = 128;
|
|
ccg->secs_per_track = 32;
|
|
}
|
|
} else {
|
|
ccg->heads = 64;
|
|
ccg->secs_per_track = 32;
|
|
}
|
|
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
|
|
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
|
|
{
|
|
btreset(bt, /*hardreset*/TRUE);
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_TERM_IO: /* Terminate the I/O process */
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_PATH_INQ: /* Path routing inquiry */
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
cpi->version_num = 1; /* XXX??? */
|
|
cpi->hba_inquiry = PI_SDTR_ABLE;
|
|
if (bt->tag_capable != 0)
|
|
cpi->hba_inquiry |= PI_TAG_ABLE;
|
|
if (bt->wide_bus != 0)
|
|
cpi->hba_inquiry |= PI_WIDE_16;
|
|
cpi->target_sprt = 0;
|
|
cpi->hba_misc = 0;
|
|
cpi->hba_eng_cnt = 0;
|
|
cpi->max_target = bt->wide_bus ? 15 : 7;
|
|
cpi->max_lun = 7;
|
|
cpi->initiator_id = bt->scsi_id;
|
|
cpi->bus_id = cam_sim_bus(sim);
|
|
cpi->base_transfer_speed = 3300;
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
strncpy(cpi->hba_vid, "BusLogic", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
default:
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
btexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
|
|
{
|
|
struct bt_ccb *bccb;
|
|
union ccb *ccb;
|
|
struct bt_softc *bt;
|
|
int s;
|
|
|
|
bccb = (struct bt_ccb *)arg;
|
|
ccb = bccb->ccb;
|
|
bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr;
|
|
|
|
if (error != 0) {
|
|
if (error != EFBIG)
|
|
device_printf(bt->dev,
|
|
"Unexepected error 0x%x returned from "
|
|
"bus_dmamap_load\n", error);
|
|
if (ccb->ccb_h.status == CAM_REQ_INPROG) {
|
|
xpt_freeze_devq(ccb->ccb_h.path, /*count*/1);
|
|
ccb->ccb_h.status = CAM_REQ_TOO_BIG|CAM_DEV_QFRZN;
|
|
}
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
|
|
if (nseg != 0) {
|
|
bt_sg_t *sg;
|
|
bus_dma_segment_t *end_seg;
|
|
bus_dmasync_op_t op;
|
|
|
|
end_seg = dm_segs + nseg;
|
|
|
|
/* Copy the segments into our SG list */
|
|
sg = bccb->sg_list;
|
|
while (dm_segs < end_seg) {
|
|
sg->len = dm_segs->ds_len;
|
|
sg->addr = dm_segs->ds_addr;
|
|
sg++;
|
|
dm_segs++;
|
|
}
|
|
|
|
if (nseg > 1) {
|
|
bccb->hccb.opcode = INITIATOR_SG_CCB_WRESID;
|
|
bccb->hccb.data_len = sizeof(bt_sg_t) * nseg;
|
|
bccb->hccb.data_addr = bccb->sg_list_phys;
|
|
} else {
|
|
bccb->hccb.data_len = bccb->sg_list->len;
|
|
bccb->hccb.data_addr = bccb->sg_list->addr;
|
|
}
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
|
|
op = BUS_DMASYNC_PREREAD;
|
|
else
|
|
op = BUS_DMASYNC_PREWRITE;
|
|
|
|
bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op);
|
|
|
|
} else {
|
|
bccb->hccb.opcode = INITIATOR_CCB;
|
|
bccb->hccb.data_len = 0;
|
|
bccb->hccb.data_addr = 0;
|
|
}
|
|
|
|
s = splcam();
|
|
|
|
/*
|
|
* Last time we need to check if this CCB needs to
|
|
* be aborted.
|
|
*/
|
|
if (ccb->ccb_h.status != CAM_REQ_INPROG) {
|
|
if (nseg != 0)
|
|
bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
splx(s);
|
|
return;
|
|
}
|
|
|
|
bccb->flags = BCCB_ACTIVE;
|
|
ccb->ccb_h.status |= CAM_SIM_QUEUED;
|
|
LIST_INSERT_HEAD(&bt->pending_ccbs, &ccb->ccb_h, sim_links.le);
|
|
|
|
ccb->ccb_h.timeout_ch =
|
|
timeout(bttimeout, (caddr_t)bccb,
|
|
(ccb->ccb_h.timeout * hz) / 1000);
|
|
|
|
/* Tell the adapter about this command */
|
|
bt->cur_outbox->ccb_addr = btccbvtop(bt, bccb);
|
|
if (bt->cur_outbox->action_code != BMBO_FREE) {
|
|
/*
|
|
* We should never encounter a busy mailbox.
|
|
* If we do, warn the user, and treat it as
|
|
* a resource shortage. If the controller is
|
|
* hung, one of the pending transactions will
|
|
* timeout causing us to start recovery operations.
|
|
*/
|
|
device_printf(bt->dev,
|
|
"Encountered busy mailbox with %d out of %d "
|
|
"commands active!!!\n", bt->active_ccbs,
|
|
bt->max_ccbs);
|
|
untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch);
|
|
if (nseg != 0)
|
|
bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
|
|
btfreeccb(bt, bccb);
|
|
bt->resource_shortage = TRUE;
|
|
xpt_freeze_simq(bt->sim, /*count*/1);
|
|
ccb->ccb_h.status = CAM_REQUEUE_REQ;
|
|
xpt_done(ccb);
|
|
return;
|
|
}
|
|
bt->cur_outbox->action_code = BMBO_START;
|
|
bt_outb(bt, COMMAND_REG, BOP_START_MBOX);
|
|
btnextoutbox(bt);
|
|
splx(s);
|
|
}
|
|
|
|
void
|
|
bt_intr(void *arg)
|
|
{
|
|
struct bt_softc *bt;
|
|
u_int intstat;
|
|
|
|
bt = (struct bt_softc *)arg;
|
|
while (((intstat = bt_inb(bt, INTSTAT_REG)) & INTR_PENDING) != 0) {
|
|
|
|
if ((intstat & CMD_COMPLETE) != 0) {
|
|
bt->latched_status = bt_inb(bt, STATUS_REG);
|
|
bt->command_cmp = TRUE;
|
|
}
|
|
|
|
bt_outb(bt, CONTROL_REG, RESET_INTR);
|
|
|
|
if ((intstat & IMB_LOADED) != 0) {
|
|
while (bt->cur_inbox->comp_code != BMBI_FREE) {
|
|
btdone(bt,
|
|
btccbptov(bt, bt->cur_inbox->ccb_addr),
|
|
bt->cur_inbox->comp_code);
|
|
bt->cur_inbox->comp_code = BMBI_FREE;
|
|
btnextinbox(bt);
|
|
}
|
|
}
|
|
|
|
if ((intstat & SCSI_BUS_RESET) != 0) {
|
|
btreset(bt, /*hardreset*/FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
btdone(struct bt_softc *bt, struct bt_ccb *bccb, bt_mbi_comp_code_t comp_code)
|
|
{
|
|
union ccb *ccb;
|
|
struct ccb_scsiio *csio;
|
|
|
|
ccb = bccb->ccb;
|
|
csio = &bccb->ccb->csio;
|
|
|
|
if ((bccb->flags & BCCB_ACTIVE) == 0) {
|
|
device_printf(bt->dev,
|
|
"btdone - Attempt to free non-active BCCB %p\n",
|
|
(void *)bccb);
|
|
return;
|
|
}
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
|
|
bus_dmasync_op_t op;
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)
|
|
op = BUS_DMASYNC_POSTREAD;
|
|
else
|
|
op = BUS_DMASYNC_POSTWRITE;
|
|
bus_dmamap_sync(bt->buffer_dmat, bccb->dmamap, op);
|
|
bus_dmamap_unload(bt->buffer_dmat, bccb->dmamap);
|
|
}
|
|
|
|
if (bccb == bt->recovery_bccb) {
|
|
/*
|
|
* The recovery BCCB does not have a CCB associated
|
|
* with it, so short circuit the normal error handling.
|
|
* We now traverse our list of pending CCBs and process
|
|
* any that were terminated by the recovery CCBs action.
|
|
* We also reinstate timeouts for all remaining, pending,
|
|
* CCBs.
|
|
*/
|
|
struct cam_path *path;
|
|
struct ccb_hdr *ccb_h;
|
|
cam_status error;
|
|
|
|
/* Notify all clients that a BDR occured */
|
|
error = xpt_create_path(&path, /*periph*/NULL,
|
|
cam_sim_path(bt->sim),
|
|
bccb->hccb.target_id,
|
|
CAM_LUN_WILDCARD);
|
|
|
|
if (error == CAM_REQ_CMP)
|
|
xpt_async(AC_SENT_BDR, path, NULL);
|
|
|
|
ccb_h = LIST_FIRST(&bt->pending_ccbs);
|
|
while (ccb_h != NULL) {
|
|
struct bt_ccb *pending_bccb;
|
|
|
|
pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
|
|
if (pending_bccb->hccb.target_id
|
|
== bccb->hccb.target_id) {
|
|
pending_bccb->hccb.btstat = BTSTAT_HA_BDR;
|
|
ccb_h = LIST_NEXT(ccb_h, sim_links.le);
|
|
btdone(bt, pending_bccb, BMBI_ERROR);
|
|
} else {
|
|
ccb_h->timeout_ch =
|
|
timeout(bttimeout, (caddr_t)pending_bccb,
|
|
(ccb_h->timeout * hz) / 1000);
|
|
ccb_h = LIST_NEXT(ccb_h, sim_links.le);
|
|
}
|
|
}
|
|
device_printf(bt->dev, "No longer in timeout\n");
|
|
return;
|
|
}
|
|
|
|
untimeout(bttimeout, bccb, ccb->ccb_h.timeout_ch);
|
|
|
|
switch (comp_code) {
|
|
case BMBI_FREE:
|
|
device_printf(bt->dev,
|
|
"btdone - CCB completed with free status!\n");
|
|
break;
|
|
case BMBI_NOT_FOUND:
|
|
device_printf(bt->dev,
|
|
"btdone - CCB Abort failed to find CCB\n");
|
|
break;
|
|
case BMBI_ABORT:
|
|
case BMBI_ERROR:
|
|
if (bootverbose) {
|
|
printf("bt: ccb %p - error %x occured. "
|
|
"btstat = %x, sdstat = %x\n",
|
|
(void *)bccb, comp_code, bccb->hccb.btstat,
|
|
bccb->hccb.sdstat);
|
|
}
|
|
/* An error occured */
|
|
switch(bccb->hccb.btstat) {
|
|
case BTSTAT_DATARUN_ERROR:
|
|
if (bccb->hccb.data_len == 0) {
|
|
/*
|
|
* At least firmware 4.22, does this
|
|
* for a QUEUE FULL condition.
|
|
*/
|
|
bccb->hccb.sdstat = SCSI_STATUS_QUEUE_FULL;
|
|
} else if (bccb->hccb.data_len < 0) {
|
|
csio->ccb_h.status = CAM_DATA_RUN_ERR;
|
|
break;
|
|
}
|
|
/* FALLTHROUGH */
|
|
case BTSTAT_NOERROR:
|
|
case BTSTAT_LINKED_CMD_COMPLETE:
|
|
case BTSTAT_LINKED_CMD_FLAG_COMPLETE:
|
|
case BTSTAT_DATAUNDERUN_ERROR:
|
|
|
|
csio->scsi_status = bccb->hccb.sdstat;
|
|
csio->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
|
|
switch(csio->scsi_status) {
|
|
case SCSI_STATUS_CHECK_COND:
|
|
case SCSI_STATUS_CMD_TERMINATED:
|
|
csio->ccb_h.status |= CAM_AUTOSNS_VALID;
|
|
/* Bounce sense back if necessary */
|
|
if (bt->sense_buffers != NULL) {
|
|
csio->sense_data =
|
|
*btsensevaddr(bt, bccb);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
case SCSI_STATUS_OK:
|
|
csio->ccb_h.status = CAM_REQ_CMP;
|
|
break;
|
|
}
|
|
csio->resid = bccb->hccb.data_len;
|
|
break;
|
|
case BTSTAT_SELTIMEOUT:
|
|
csio->ccb_h.status = CAM_SEL_TIMEOUT;
|
|
break;
|
|
case BTSTAT_UNEXPECTED_BUSFREE:
|
|
csio->ccb_h.status = CAM_UNEXP_BUSFREE;
|
|
break;
|
|
case BTSTAT_INVALID_PHASE:
|
|
csio->ccb_h.status = CAM_SEQUENCE_FAIL;
|
|
break;
|
|
case BTSTAT_INVALID_ACTION_CODE:
|
|
panic("%s: Inavlid Action code", bt_name(bt));
|
|
break;
|
|
case BTSTAT_INVALID_OPCODE:
|
|
panic("%s: Inavlid CCB Opcode code", bt_name(bt));
|
|
break;
|
|
case BTSTAT_LINKED_CCB_LUN_MISMATCH:
|
|
/* We don't even support linked commands... */
|
|
panic("%s: Linked CCB Lun Mismatch", bt_name(bt));
|
|
break;
|
|
case BTSTAT_INVALID_CCB_OR_SG_PARAM:
|
|
panic("%s: Invalid CCB or SG list", bt_name(bt));
|
|
break;
|
|
case BTSTAT_AUTOSENSE_FAILED:
|
|
csio->ccb_h.status = CAM_AUTOSENSE_FAIL;
|
|
break;
|
|
case BTSTAT_TAGGED_MSG_REJECTED:
|
|
{
|
|
struct ccb_trans_settings neg;
|
|
|
|
xpt_print_path(csio->ccb_h.path);
|
|
printf("refuses tagged commands. Performing "
|
|
"non-tagged I/O\n");
|
|
neg.flags = 0;
|
|
neg.valid = CCB_TRANS_TQ_VALID;
|
|
xpt_setup_ccb(&neg.ccb_h, csio->ccb_h.path,
|
|
/*priority*/1);
|
|
xpt_async(AC_TRANSFER_NEG, csio->ccb_h.path, &neg);
|
|
bt->tags_permitted &= ~(0x01 << csio->ccb_h.target_id);
|
|
csio->ccb_h.status = CAM_MSG_REJECT_REC;
|
|
break;
|
|
}
|
|
case BTSTAT_UNSUPPORTED_MSG_RECEIVED:
|
|
/*
|
|
* XXX You would think that this is
|
|
* a recoverable error... Hmmm.
|
|
*/
|
|
csio->ccb_h.status = CAM_REQ_CMP_ERR;
|
|
break;
|
|
case BTSTAT_HA_SOFTWARE_ERROR:
|
|
case BTSTAT_HA_WATCHDOG_ERROR:
|
|
case BTSTAT_HARDWARE_FAILURE:
|
|
/* Hardware reset ??? Can we recover ??? */
|
|
csio->ccb_h.status = CAM_NO_HBA;
|
|
break;
|
|
case BTSTAT_TARGET_IGNORED_ATN:
|
|
case BTSTAT_OTHER_SCSI_BUS_RESET:
|
|
case BTSTAT_HA_SCSI_BUS_RESET:
|
|
if ((csio->ccb_h.status & CAM_STATUS_MASK)
|
|
!= CAM_CMD_TIMEOUT)
|
|
csio->ccb_h.status = CAM_SCSI_BUS_RESET;
|
|
break;
|
|
case BTSTAT_HA_BDR:
|
|
if ((bccb->flags & BCCB_DEVICE_RESET) == 0)
|
|
csio->ccb_h.status = CAM_BDR_SENT;
|
|
else
|
|
csio->ccb_h.status = CAM_CMD_TIMEOUT;
|
|
break;
|
|
case BTSTAT_INVALID_RECONNECT:
|
|
case BTSTAT_ABORT_QUEUE_GENERATED:
|
|
csio->ccb_h.status = CAM_REQ_TERMIO;
|
|
break;
|
|
case BTSTAT_SCSI_PERROR_DETECTED:
|
|
csio->ccb_h.status = CAM_UNCOR_PARITY;
|
|
break;
|
|
}
|
|
if (csio->ccb_h.status != CAM_REQ_CMP) {
|
|
xpt_freeze_devq(csio->ccb_h.path, /*count*/1);
|
|
csio->ccb_h.status |= CAM_DEV_QFRZN;
|
|
}
|
|
if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0)
|
|
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
break;
|
|
case BMBI_OK:
|
|
/* All completed without incident */
|
|
ccb->ccb_h.status |= CAM_REQ_CMP;
|
|
if ((bccb->flags & BCCB_RELEASE_SIMQ) != 0)
|
|
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
|
|
btfreeccb(bt, bccb);
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
btreset(struct bt_softc* bt, int hard_reset)
|
|
{
|
|
struct ccb_hdr *ccb_h;
|
|
u_int status;
|
|
u_int timeout;
|
|
u_int8_t reset_type;
|
|
|
|
if (hard_reset != 0)
|
|
reset_type = HARD_RESET;
|
|
else
|
|
reset_type = SOFT_RESET;
|
|
bt_outb(bt, CONTROL_REG, reset_type);
|
|
|
|
/* Wait 5sec. for Diagnostic start */
|
|
timeout = 5 * 10000;
|
|
while (--timeout) {
|
|
status = bt_inb(bt, STATUS_REG);
|
|
if ((status & DIAG_ACTIVE) != 0)
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
if (timeout == 0) {
|
|
if (bootverbose)
|
|
printf("%s: btreset - Diagnostic Active failed to "
|
|
"assert. status = 0x%x\n", bt_name(bt), status);
|
|
return (ETIMEDOUT);
|
|
}
|
|
|
|
/* Wait 10sec. for Diagnostic end */
|
|
timeout = 10 * 10000;
|
|
while (--timeout) {
|
|
status = bt_inb(bt, STATUS_REG);
|
|
if ((status & DIAG_ACTIVE) == 0)
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
if (timeout == 0) {
|
|
panic("%s: btreset - Diagnostic Active failed to drop. "
|
|
"status = 0x%x\n", bt_name(bt), status);
|
|
return (ETIMEDOUT);
|
|
}
|
|
|
|
/* Wait for the host adapter to become ready or report a failure */
|
|
timeout = 10000;
|
|
while (--timeout) {
|
|
status = bt_inb(bt, STATUS_REG);
|
|
if ((status & (DIAG_FAIL|HA_READY|DATAIN_REG_READY)) != 0)
|
|
break;
|
|
DELAY(100);
|
|
}
|
|
if (timeout == 0) {
|
|
printf("%s: btreset - Host adapter failed to come ready. "
|
|
"status = 0x%x\n", bt_name(bt), status);
|
|
return (ETIMEDOUT);
|
|
}
|
|
|
|
/* If the diagnostics failed, tell the user */
|
|
if ((status & DIAG_FAIL) != 0
|
|
|| (status & HA_READY) == 0) {
|
|
printf("%s: btreset - Adapter failed diagnostics\n",
|
|
bt_name(bt));
|
|
|
|
if ((status & DATAIN_REG_READY) != 0)
|
|
printf("%s: btreset - Host Adapter Error code = 0x%x\n",
|
|
bt_name(bt), bt_inb(bt, DATAIN_REG));
|
|
return (ENXIO);
|
|
}
|
|
|
|
/* If we've allocated mailboxes, initialize them */
|
|
if (bt->init_level > 4)
|
|
btinitmboxes(bt);
|
|
|
|
/* If we've attached to the XPT, tell it about the event */
|
|
if (bt->path != NULL)
|
|
xpt_async(AC_BUS_RESET, bt->path, NULL);
|
|
|
|
/*
|
|
* Perform completion processing for all outstanding CCBs.
|
|
*/
|
|
while ((ccb_h = LIST_FIRST(&bt->pending_ccbs)) != NULL) {
|
|
struct bt_ccb *pending_bccb;
|
|
|
|
pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
|
|
pending_bccb->hccb.btstat = BTSTAT_HA_SCSI_BUS_RESET;
|
|
btdone(bt, pending_bccb, BMBI_ERROR);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Send a command to the adapter.
|
|
*/
|
|
int
|
|
bt_cmd(struct bt_softc *bt, bt_op_t opcode, u_int8_t *params, u_int param_len,
|
|
u_int8_t *reply_data, u_int reply_len, u_int cmd_timeout)
|
|
{
|
|
u_int timeout;
|
|
u_int status;
|
|
u_int saved_status;
|
|
u_int intstat;
|
|
u_int reply_buf_size;
|
|
int s;
|
|
int cmd_complete;
|
|
int error;
|
|
|
|
/* No data returned to start */
|
|
reply_buf_size = reply_len;
|
|
reply_len = 0;
|
|
intstat = 0;
|
|
cmd_complete = 0;
|
|
saved_status = 0;
|
|
error = 0;
|
|
|
|
bt->command_cmp = 0;
|
|
/*
|
|
* Wait up to 10 sec. for the adapter to become
|
|
* ready to accept commands.
|
|
*/
|
|
timeout = 100000;
|
|
while (--timeout) {
|
|
status = bt_inb(bt, STATUS_REG);
|
|
if ((status & HA_READY) != 0
|
|
&& (status & CMD_REG_BUSY) == 0)
|
|
break;
|
|
/*
|
|
* Throw away any pending data which may be
|
|
* left over from earlier commands that we
|
|
* timedout on.
|
|
*/
|
|
if ((status & DATAIN_REG_READY) != 0)
|
|
(void)bt_inb(bt, DATAIN_REG);
|
|
DELAY(100);
|
|
}
|
|
if (timeout == 0) {
|
|
printf("%s: bt_cmd: Timeout waiting for adapter ready, "
|
|
"status = 0x%x\n", bt_name(bt), status);
|
|
return (ETIMEDOUT);
|
|
}
|
|
|
|
/*
|
|
* Send the opcode followed by any necessary parameter bytes.
|
|
*/
|
|
bt_outb(bt, COMMAND_REG, opcode);
|
|
|
|
/*
|
|
* Wait for up to 1sec for each byte of the the
|
|
* parameter list sent to be sent.
|
|
*/
|
|
timeout = 10000;
|
|
while (param_len && --timeout) {
|
|
DELAY(100);
|
|
s = splcam();
|
|
status = bt_inb(bt, STATUS_REG);
|
|
intstat = bt_inb(bt, INTSTAT_REG);
|
|
splx(s);
|
|
|
|
if ((intstat & (INTR_PENDING|CMD_COMPLETE))
|
|
== (INTR_PENDING|CMD_COMPLETE)) {
|
|
saved_status = status;
|
|
cmd_complete = 1;
|
|
break;
|
|
}
|
|
if (bt->command_cmp != 0) {
|
|
saved_status = bt->latched_status;
|
|
cmd_complete = 1;
|
|
break;
|
|
}
|
|
if ((status & DATAIN_REG_READY) != 0)
|
|
break;
|
|
if ((status & CMD_REG_BUSY) == 0) {
|
|
bt_outb(bt, COMMAND_REG, *params++);
|
|
param_len--;
|
|
timeout = 10000;
|
|
}
|
|
}
|
|
if (timeout == 0) {
|
|
printf("%s: bt_cmd: Timeout sending parameters, "
|
|
"status = 0x%x\n", bt_name(bt), status);
|
|
cmd_complete = 1;
|
|
saved_status = status;
|
|
error = ETIMEDOUT;
|
|
}
|
|
|
|
/*
|
|
* Wait for the command to complete.
|
|
*/
|
|
while (cmd_complete == 0 && --cmd_timeout) {
|
|
|
|
s = splcam();
|
|
status = bt_inb(bt, STATUS_REG);
|
|
intstat = bt_inb(bt, INTSTAT_REG);
|
|
/*
|
|
* It may be that this command was issued with
|
|
* controller interrupts disabled. We'll never
|
|
* get to our command if an incoming mailbox
|
|
* interrupt is pending, so take care of completed
|
|
* mailbox commands by calling our interrupt handler.
|
|
*/
|
|
if ((intstat & (INTR_PENDING|IMB_LOADED))
|
|
== (INTR_PENDING|IMB_LOADED))
|
|
bt_intr(bt);
|
|
splx(s);
|
|
|
|
if (bt->command_cmp != 0) {
|
|
/*
|
|
* Our interrupt handler saw CMD_COMPLETE
|
|
* status before we did.
|
|
*/
|
|
cmd_complete = 1;
|
|
saved_status = bt->latched_status;
|
|
} else if ((intstat & (INTR_PENDING|CMD_COMPLETE))
|
|
== (INTR_PENDING|CMD_COMPLETE)) {
|
|
/*
|
|
* Our poll (in case interrupts are blocked)
|
|
* saw the CMD_COMPLETE interrupt.
|
|
*/
|
|
cmd_complete = 1;
|
|
saved_status = status;
|
|
} else if (opcode == BOP_MODIFY_IO_ADDR
|
|
&& (status & CMD_REG_BUSY) == 0) {
|
|
/*
|
|
* The BOP_MODIFY_IO_ADDR does not issue a CMD_COMPLETE,
|
|
* but it should update the status register. So, we
|
|
* consider this command complete when the CMD_REG_BUSY
|
|
* status clears.
|
|
*/
|
|
saved_status = status;
|
|
cmd_complete = 1;
|
|
} else if ((status & DATAIN_REG_READY) != 0) {
|
|
u_int8_t data;
|
|
|
|
data = bt_inb(bt, DATAIN_REG);
|
|
if (reply_len < reply_buf_size) {
|
|
*reply_data++ = data;
|
|
} else {
|
|
printf("%s: bt_cmd - Discarded reply data byte "
|
|
"for opcode 0x%x\n", bt_name(bt),
|
|
opcode);
|
|
}
|
|
/*
|
|
* Reset timeout to ensure at least a second
|
|
* between response bytes.
|
|
*/
|
|
cmd_timeout = MAX(cmd_timeout, 10000);
|
|
reply_len++;
|
|
|
|
} else if ((opcode == BOP_FETCH_LRAM)
|
|
&& (status & HA_READY) != 0) {
|
|
saved_status = status;
|
|
cmd_complete = 1;
|
|
}
|
|
DELAY(100);
|
|
}
|
|
if (cmd_timeout == 0) {
|
|
printf("%s: bt_cmd: Timeout waiting for command (%x) "
|
|
"to complete.\n%s: status = 0x%x, intstat = 0x%x, "
|
|
"rlen %d\n", bt_name(bt), opcode,
|
|
bt_name(bt), status, intstat, reply_len);
|
|
error = (ETIMEDOUT);
|
|
}
|
|
|
|
/*
|
|
* Clear any pending interrupts. Block interrupts so our
|
|
* interrupt handler is not re-entered.
|
|
*/
|
|
s = splcam();
|
|
bt_intr(bt);
|
|
splx(s);
|
|
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
/*
|
|
* If the command was rejected by the controller, tell the caller.
|
|
*/
|
|
if ((saved_status & CMD_INVALID) != 0) {
|
|
/*
|
|
* Some early adapters may not recover properly from
|
|
* an invalid command. If it appears that the controller
|
|
* has wedged (i.e. status was not cleared by our interrupt
|
|
* reset above), perform a soft reset.
|
|
*/
|
|
if (bootverbose)
|
|
printf("%s: Invalid Command 0x%x\n", bt_name(bt),
|
|
opcode);
|
|
DELAY(1000);
|
|
status = bt_inb(bt, STATUS_REG);
|
|
if ((status & (CMD_INVALID|STATUS_REG_RSVD|DATAIN_REG_READY|
|
|
CMD_REG_BUSY|DIAG_FAIL|DIAG_ACTIVE)) != 0
|
|
|| (status & (HA_READY|INIT_REQUIRED))
|
|
!= (HA_READY|INIT_REQUIRED)) {
|
|
btreset(bt, /*hard_reset*/FALSE);
|
|
}
|
|
return (EINVAL);
|
|
}
|
|
|
|
if (param_len > 0) {
|
|
/* The controller did not accept the full argument list */
|
|
return (E2BIG);
|
|
}
|
|
|
|
if (reply_len != reply_buf_size) {
|
|
/* Too much or too little data received */
|
|
return (EMSGSIZE);
|
|
}
|
|
|
|
/* We were successful */
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
btinitmboxes(struct bt_softc *bt) {
|
|
init_32b_mbox_params_t init_mbox;
|
|
int error;
|
|
|
|
bzero(bt->in_boxes, sizeof(bt_mbox_in_t) * bt->num_boxes);
|
|
bzero(bt->out_boxes, sizeof(bt_mbox_out_t) * bt->num_boxes);
|
|
bt->cur_inbox = bt->in_boxes;
|
|
bt->last_inbox = bt->in_boxes + bt->num_boxes - 1;
|
|
bt->cur_outbox = bt->out_boxes;
|
|
bt->last_outbox = bt->out_boxes + bt->num_boxes - 1;
|
|
|
|
/* Tell the adapter about them */
|
|
init_mbox.num_boxes = bt->num_boxes;
|
|
init_mbox.base_addr[0] = bt->mailbox_physbase & 0xFF;
|
|
init_mbox.base_addr[1] = (bt->mailbox_physbase >> 8) & 0xFF;
|
|
init_mbox.base_addr[2] = (bt->mailbox_physbase >> 16) & 0xFF;
|
|
init_mbox.base_addr[3] = (bt->mailbox_physbase >> 24) & 0xFF;
|
|
error = bt_cmd(bt, BOP_INITIALIZE_32BMBOX, (u_int8_t *)&init_mbox,
|
|
/*parmlen*/sizeof(init_mbox), /*reply_buf*/NULL,
|
|
/*reply_len*/0, DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0)
|
|
printf("btinitmboxes: Initialization command failed\n");
|
|
else if (bt->strict_rr != 0) {
|
|
/*
|
|
* If the controller supports
|
|
* strict round robin mode,
|
|
* enable it
|
|
*/
|
|
u_int8_t param;
|
|
|
|
param = 0;
|
|
error = bt_cmd(bt, BOP_ENABLE_STRICT_RR, ¶m, 1,
|
|
/*reply_buf*/NULL, /*reply_len*/0,
|
|
DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0) {
|
|
printf("btinitmboxes: Unable to enable strict RR\n");
|
|
error = 0;
|
|
} else if (bootverbose) {
|
|
printf("%s: Using Strict Round Robin Mailbox Mode\n",
|
|
bt_name(bt));
|
|
}
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Update the XPT's idea of the negotiated transfer
|
|
* parameters for a particular target.
|
|
*/
|
|
static void
|
|
btfetchtransinfo(struct bt_softc *bt, struct ccb_trans_settings* cts)
|
|
{
|
|
setup_data_t setup_info;
|
|
u_int target;
|
|
u_int targ_offset;
|
|
u_int targ_mask;
|
|
u_int sync_period;
|
|
int error;
|
|
u_int8_t param;
|
|
targ_syncinfo_t sync_info;
|
|
|
|
target = cts->ccb_h.target_id;
|
|
targ_offset = (target & 0x7);
|
|
targ_mask = (0x01 << targ_offset);
|
|
|
|
/*
|
|
* Inquire Setup Information. This command retreives the
|
|
* Wide negotiation status for recent adapters as well as
|
|
* the sync info for older models.
|
|
*/
|
|
param = sizeof(setup_info);
|
|
error = bt_cmd(bt, BOP_INQUIRE_SETUP_INFO, ¶m, /*paramlen*/1,
|
|
(u_int8_t*)&setup_info, sizeof(setup_info),
|
|
DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0) {
|
|
printf("%s: btfetchtransinfo - Inquire Setup Info Failed %x\n",
|
|
bt_name(bt), error);
|
|
cts->valid = 0;
|
|
return;
|
|
}
|
|
|
|
sync_info = (target < 8) ? setup_info.low_syncinfo[targ_offset]
|
|
: setup_info.high_syncinfo[targ_offset];
|
|
|
|
if (sync_info.sync == 0)
|
|
cts->sync_offset = 0;
|
|
else
|
|
cts->sync_offset = sync_info.offset;
|
|
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_8_BIT;
|
|
if (strcmp(bt->firmware_ver, "5.06L") >= 0) {
|
|
u_int wide_active;
|
|
|
|
wide_active =
|
|
(target < 8) ? (setup_info.low_wide_active & targ_mask)
|
|
: (setup_info.high_wide_active & targ_mask);
|
|
|
|
if (wide_active)
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
|
|
} else if ((bt->wide_permitted & targ_mask) != 0) {
|
|
struct ccb_getdev cgd;
|
|
|
|
/*
|
|
* Prior to rev 5.06L, wide status isn't provided,
|
|
* so we "guess" that wide transfers are in effect
|
|
* if the user settings allow for wide and the inquiry
|
|
* data for the device indicates that it can handle
|
|
* wide transfers.
|
|
*/
|
|
xpt_setup_ccb(&cgd.ccb_h, cts->ccb_h.path, /*priority*/1);
|
|
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
|
|
xpt_action((union ccb *)&cgd);
|
|
if ((cgd.ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP
|
|
&& (cgd.inq_data.flags & SID_WBus16) != 0)
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
|
|
}
|
|
|
|
if (bt->firmware_ver[0] >= '3') {
|
|
/*
|
|
* For adapters that can do fast or ultra speeds,
|
|
* use the more exact Target Sync Information command.
|
|
*/
|
|
target_sync_info_data_t sync_info;
|
|
|
|
param = sizeof(sync_info);
|
|
error = bt_cmd(bt, BOP_TARG_SYNC_INFO, ¶m, /*paramlen*/1,
|
|
(u_int8_t*)&sync_info, sizeof(sync_info),
|
|
DEFAULT_CMD_TIMEOUT);
|
|
|
|
if (error != 0) {
|
|
printf("%s: btfetchtransinfo - Inquire Sync "
|
|
"Info Failed 0x%x\n", bt_name(bt), error);
|
|
cts->valid = 0;
|
|
return;
|
|
}
|
|
sync_period = sync_info.sync_rate[target] * 100;
|
|
} else {
|
|
sync_period = 2000 + (500 * sync_info.period);
|
|
}
|
|
|
|
/* Convert ns value to standard SCSI sync rate */
|
|
if (cts->sync_offset != 0)
|
|
cts->sync_period = scsi_calc_syncparam(sync_period);
|
|
else
|
|
cts->sync_period = 0;
|
|
|
|
cts->valid = CCB_TRANS_SYNC_RATE_VALID
|
|
| CCB_TRANS_SYNC_OFFSET_VALID
|
|
| CCB_TRANS_BUS_WIDTH_VALID;
|
|
xpt_async(AC_TRANSFER_NEG, cts->ccb_h.path, cts);
|
|
}
|
|
|
|
static void
|
|
btmapmboxes(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct bt_softc* bt;
|
|
|
|
bt = (struct bt_softc*)arg;
|
|
bt->mailbox_physbase = segs->ds_addr;
|
|
}
|
|
|
|
static void
|
|
btmapccbs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
struct bt_softc* bt;
|
|
|
|
bt = (struct bt_softc*)arg;
|
|
bt->bt_ccb_physbase = segs->ds_addr;
|
|
}
|
|
|
|
static void
|
|
btmapsgs(void *arg, bus_dma_segment_t *segs, int nseg, int error)
|
|
{
|
|
|
|
struct bt_softc* bt;
|
|
|
|
bt = (struct bt_softc*)arg;
|
|
SLIST_FIRST(&bt->sg_maps)->sg_physaddr = segs->ds_addr;
|
|
}
|
|
|
|
static void
|
|
btpoll(struct cam_sim *sim)
|
|
{
|
|
bt_intr(cam_sim_softc(sim));
|
|
}
|
|
|
|
void
|
|
bttimeout(void *arg)
|
|
{
|
|
struct bt_ccb *bccb;
|
|
union ccb *ccb;
|
|
struct bt_softc *bt;
|
|
int s;
|
|
|
|
bccb = (struct bt_ccb *)arg;
|
|
ccb = bccb->ccb;
|
|
bt = (struct bt_softc *)ccb->ccb_h.ccb_bt_ptr;
|
|
xpt_print_path(ccb->ccb_h.path);
|
|
printf("CCB %p - timed out\n", (void *)bccb);
|
|
|
|
s = splcam();
|
|
|
|
if ((bccb->flags & BCCB_ACTIVE) == 0) {
|
|
xpt_print_path(ccb->ccb_h.path);
|
|
printf("CCB %p - timed out CCB already completed\n",
|
|
(void *)bccb);
|
|
splx(s);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* In order to simplify the recovery process, we ask the XPT
|
|
* layer to halt the queue of new transactions and we traverse
|
|
* the list of pending CCBs and remove their timeouts. This
|
|
* means that the driver attempts to clear only one error
|
|
* condition at a time. In general, timeouts that occur
|
|
* close together are related anyway, so there is no benefit
|
|
* in attempting to handle errors in parrallel. Timeouts will
|
|
* be reinstated when the recovery process ends.
|
|
*/
|
|
if ((bccb->flags & BCCB_DEVICE_RESET) == 0) {
|
|
struct ccb_hdr *ccb_h;
|
|
|
|
if ((bccb->flags & BCCB_RELEASE_SIMQ) == 0) {
|
|
xpt_freeze_simq(bt->sim, /*count*/1);
|
|
bccb->flags |= BCCB_RELEASE_SIMQ;
|
|
}
|
|
|
|
ccb_h = LIST_FIRST(&bt->pending_ccbs);
|
|
while (ccb_h != NULL) {
|
|
struct bt_ccb *pending_bccb;
|
|
|
|
pending_bccb = (struct bt_ccb *)ccb_h->ccb_bccb_ptr;
|
|
untimeout(bttimeout, pending_bccb, ccb_h->timeout_ch);
|
|
ccb_h = LIST_NEXT(ccb_h, sim_links.le);
|
|
}
|
|
}
|
|
|
|
if ((bccb->flags & BCCB_DEVICE_RESET) != 0
|
|
|| bt->cur_outbox->action_code != BMBO_FREE
|
|
|| ((bccb->hccb.tag_enable == TRUE)
|
|
&& (bt->firmware_ver[0] < '5'))) {
|
|
/*
|
|
* Try a full host adapter/SCSI bus reset.
|
|
* We do this only if we have already attempted
|
|
* to clear the condition with a BDR, or we cannot
|
|
* attempt a BDR for lack of mailbox resources
|
|
* or because of faulty firmware. It turns out
|
|
* that firmware versions prior to 5.xx treat BDRs
|
|
* as untagged commands that cannot be sent until
|
|
* all outstanding tagged commands have been processed.
|
|
* This makes it somewhat difficult to use a BDR to
|
|
* clear up a problem with an uncompleted tagged command.
|
|
*/
|
|
ccb->ccb_h.status = CAM_CMD_TIMEOUT;
|
|
btreset(bt, /*hardreset*/TRUE);
|
|
printf("%s: No longer in timeout\n", bt_name(bt));
|
|
} else {
|
|
/*
|
|
* Send a Bus Device Reset message:
|
|
* The target that is holding up the bus may not
|
|
* be the same as the one that triggered this timeout
|
|
* (different commands have different timeout lengths),
|
|
* but we have no way of determining this from our
|
|
* timeout handler. Our strategy here is to queue a
|
|
* BDR message to the target of the timed out command.
|
|
* If this fails, we'll get another timeout 2 seconds
|
|
* later which will attempt a bus reset.
|
|
*/
|
|
bccb->flags |= BCCB_DEVICE_RESET;
|
|
ccb->ccb_h.timeout_ch =
|
|
timeout(bttimeout, (caddr_t)bccb, 2 * hz);
|
|
|
|
bt->recovery_bccb->hccb.opcode = INITIATOR_BUS_DEV_RESET;
|
|
|
|
/* No Data Transfer */
|
|
bt->recovery_bccb->hccb.datain = TRUE;
|
|
bt->recovery_bccb->hccb.dataout = TRUE;
|
|
bt->recovery_bccb->hccb.btstat = 0;
|
|
bt->recovery_bccb->hccb.sdstat = 0;
|
|
bt->recovery_bccb->hccb.target_id = ccb->ccb_h.target_id;
|
|
|
|
/* Tell the adapter about this command */
|
|
bt->cur_outbox->ccb_addr = btccbvtop(bt, bt->recovery_bccb);
|
|
bt->cur_outbox->action_code = BMBO_START;
|
|
bt_outb(bt, COMMAND_REG, BOP_START_MBOX);
|
|
btnextoutbox(bt);
|
|
}
|
|
|
|
splx(s);
|
|
}
|
|
|