2038 lines
70 KiB
C
2038 lines
70 KiB
C
/*
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* Copyright (c) 2000-03 ICP vortex GmbH
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* Copyright (c) 2002-03 Intel Corporation
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* Copyright (c) 2003 Adaptec Inc.
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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 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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/*
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* iir.c: SCSI dependant code for the Intel Integrated RAID Controller driver
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*
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* Written by: Achim Leubner <achim_leubner@adaptec.com>
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* Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
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*
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* credits: Niklas Hallqvist; OpenBSD driver for the ICP Controllers.
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* Mike Smith; Some driver source code.
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* FreeBSD.ORG; Great O/S to work on and for.
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*
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* $Id: iir.c 1.4 2003/08/26 12:29:44 achim Exp $"
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define _IIR_C_
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/* #include "opt_iir.h" */
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/endian.h>
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#include <sys/eventhandler.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <machine/bus_memio.h>
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#include <machine/bus_pio.h>
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#include <machine/bus.h>
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#include <machine/clock.h>
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#include <machine/stdarg.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_all.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/iir/iir.h>
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struct gdt_softc *gdt_wait_gdt;
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int gdt_wait_index;
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#ifdef GDT_DEBUG
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int gdt_debug = GDT_DEBUG;
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#ifdef __SERIAL__
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#define MAX_SERBUF 160
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static void ser_init(void);
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static void ser_puts(char *str);
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static void ser_putc(int c);
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static char strbuf[MAX_SERBUF+1];
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#ifdef __COM2__
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#define COM_BASE 0x2f8
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#else
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#define COM_BASE 0x3f8
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#endif
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static void ser_init()
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{
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unsigned port=COM_BASE;
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outb(port+3, 0x80);
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outb(port+1, 0);
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/* 19200 Baud, if 9600: outb(12,port) */
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outb(port, 6);
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outb(port+3, 3);
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outb(port+1, 0);
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}
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static void ser_puts(char *str)
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{
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char *ptr;
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ser_init();
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for (ptr=str;*ptr;++ptr)
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ser_putc((int)(*ptr));
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}
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static void ser_putc(int c)
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{
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unsigned port=COM_BASE;
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while ((inb(port+5) & 0x20)==0);
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outb(port, c);
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if (c==0x0a)
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{
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while ((inb(port+5) & 0x20)==0);
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outb(port, 0x0d);
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}
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}
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int ser_printf(const char *fmt, ...)
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{
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va_list args;
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int i;
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va_start(args,fmt);
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i = vsprintf(strbuf,fmt,args);
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ser_puts(strbuf);
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va_end(args);
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return i;
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}
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#endif
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#endif
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/* The linked list of softc structures */
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struct gdt_softc_list gdt_softcs = TAILQ_HEAD_INITIALIZER(gdt_softcs);
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/* controller cnt. */
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int gdt_cnt = 0;
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/* event buffer */
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static gdt_evt_str ebuffer[GDT_MAX_EVENTS];
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static int elastidx, eoldidx;
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/* statistics */
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gdt_statist_t gdt_stat;
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/* Definitions for our use of the SIM private CCB area */
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#define ccb_sim_ptr spriv_ptr0
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#define ccb_priority spriv_field1
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static void iir_action(struct cam_sim *sim, union ccb *ccb);
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static void iir_poll(struct cam_sim *sim);
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static void iir_shutdown(void *arg, int howto);
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static void iir_timeout(void *arg);
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static void iir_watchdog(void *arg);
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static void gdt_eval_mapping(u_int32_t size, int *cyls, int *heads,
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int *secs);
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static int gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb,
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u_int8_t service, u_int16_t opcode,
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u_int32_t arg1, u_int32_t arg2, u_int32_t arg3);
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static int gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *ccb,
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int timeout);
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static struct gdt_ccb *gdt_get_ccb(struct gdt_softc *gdt);
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static u_int32_t gdt_ccb_vtop(struct gdt_softc *gdt,
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struct gdt_ccb *gccb);
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static int gdt_sync_event(struct gdt_softc *gdt, int service,
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u_int8_t index, struct gdt_ccb *gccb);
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static int gdt_async_event(struct gdt_softc *gdt, int service);
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static struct gdt_ccb *gdt_raw_cmd(struct gdt_softc *gdt,
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union ccb *ccb, int *lock);
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static struct gdt_ccb *gdt_cache_cmd(struct gdt_softc *gdt,
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union ccb *ccb, int *lock);
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static struct gdt_ccb *gdt_ioctl_cmd(struct gdt_softc *gdt,
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gdt_ucmd_t *ucmd, int *lock);
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static void gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb);
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static void gdtmapmem(void *arg, bus_dma_segment_t *dm_segs,
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int nseg, int error);
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static void gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs,
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int nseg, int error);
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int
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iir_init(struct gdt_softc *gdt)
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{
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u_int16_t cdev_cnt;
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int i, id, drv_cyls, drv_hds, drv_secs;
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struct gdt_ccb *gccb;
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GDT_DPRINTF(GDT_D_DEBUG, ("iir_init()\n"));
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gdt->sc_state = GDT_POLLING;
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gdt_clear_events();
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bzero(&gdt_stat, sizeof(gdt_statist_t));
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SLIST_INIT(&gdt->sc_free_gccb);
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SLIST_INIT(&gdt->sc_pending_gccb);
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TAILQ_INIT(&gdt->sc_ccb_queue);
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TAILQ_INIT(&gdt->sc_ucmd_queue);
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TAILQ_INSERT_TAIL(&gdt_softcs, gdt, links);
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/* DMA tag for mapping buffers into device visible space. */
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if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL, /*filterarg*/NULL,
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/*maxsize*/MAXBSIZE, /*nsegments*/GDT_MAXSG,
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/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/BUS_DMA_ALLOCNOW,
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/*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
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&gdt->sc_buffer_dmat) != 0) {
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printf("iir%d: bus_dma_tag_create(...,gdt->sc_buffer_dmat) failed\n",
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gdt->sc_hanum);
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return (1);
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}
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gdt->sc_init_level++;
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/* DMA tag for our ccb structures */
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if (bus_dma_tag_create(gdt->sc_parent_dmat,
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/*alignment*/1,
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/*boundary*/0,
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/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
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/*highaddr*/BUS_SPACE_MAXADDR,
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/*filter*/NULL,
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/*filterarg*/NULL,
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GDT_MAXCMDS * sizeof(struct gdt_ccb), /* maxsize */
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/*nsegments*/1,
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/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
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/*flags*/0, /*lockfunc*/busdma_lock_mutex,
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/*lockarg*/&Giant, &gdt->sc_gccb_dmat) != 0) {
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printf("iir%d: bus_dma_tag_create(...,gdt->sc_gccb_dmat) failed\n",
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gdt->sc_hanum);
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return (1);
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}
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gdt->sc_init_level++;
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/* Allocation for our ccbs */
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if (bus_dmamem_alloc(gdt->sc_gccb_dmat, (void **)&gdt->sc_gccbs,
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BUS_DMA_NOWAIT, &gdt->sc_gccb_dmamap) != 0) {
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printf("iir%d: bus_dmamem_alloc(...,&gdt->sc_gccbs,...) failed\n",
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gdt->sc_hanum);
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return (1);
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}
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gdt->sc_init_level++;
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/* And permanently map them */
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bus_dmamap_load(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap,
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gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb),
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gdtmapmem, &gdt->sc_gccb_busbase, /*flags*/0);
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gdt->sc_init_level++;
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/* Clear them out. */
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bzero(gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb));
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/* Initialize the ccbs */
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for (i = GDT_MAXCMDS-1; i >= 0; i--) {
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gdt->sc_gccbs[i].gc_cmd_index = i + 2;
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gdt->sc_gccbs[i].gc_flags = GDT_GCF_UNUSED;
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gdt->sc_gccbs[i].gc_map_flag = FALSE;
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if (bus_dmamap_create(gdt->sc_buffer_dmat, /*flags*/0,
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&gdt->sc_gccbs[i].gc_dmamap) != 0)
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return(1);
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gdt->sc_gccbs[i].gc_map_flag = TRUE;
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SLIST_INSERT_HEAD(&gdt->sc_free_gccb, &gdt->sc_gccbs[i], sle);
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}
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gdt->sc_init_level++;
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/* create the control device */
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gdt->sc_dev = gdt_make_dev(gdt->sc_hanum);
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/* allocate ccb for gdt_internal_cmd() */
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gccb = gdt_get_ccb(gdt);
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if (gccb == NULL) {
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printf("iir%d: No free command index found\n",
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gdt->sc_hanum);
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return (1);
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}
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if (!gdt_internal_cmd(gdt, gccb, GDT_SCREENSERVICE, GDT_INIT,
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0, 0, 0)) {
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printf("iir%d: Screen service initialization error %d\n",
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gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT,
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GDT_LINUX_OS, 0, 0)) {
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printf("iir%d: Cache service initialization error %d\n",
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gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_UNFREEZE_IO,
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0, 0, 0);
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if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_MOUNT,
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0xffff, 1, 0)) {
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printf("iir%d: Cache service mount error %d\n",
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gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT,
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GDT_LINUX_OS, 0, 0)) {
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printf("iir%d: Cache service post-mount initialization error %d\n",
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gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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cdev_cnt = (u_int16_t)gdt->sc_info;
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gdt->sc_fw_vers = gdt->sc_service;
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/* Detect number of buses */
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gdt_enc32(gccb->gc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST);
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gccb->gc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS;
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gccb->gc_scratch[GDT_IOC_FIRST_CHAN] = 0;
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gccb->gc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1;
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gdt_enc32(gccb->gc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ);
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if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
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GDT_IOCHAN_RAW_DESC, GDT_INVALID_CHANNEL,
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GDT_IOC_HDR_SZ + GDT_MAXBUS * GDT_RAWIOC_SZ)) {
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gdt->sc_bus_cnt = gccb->gc_scratch[GDT_IOC_CHAN_COUNT];
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for (i = 0; i < gdt->sc_bus_cnt; i++) {
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id = gccb->gc_scratch[GDT_IOC_HDR_SZ +
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i * GDT_RAWIOC_SZ + GDT_RAWIOC_PROC_ID];
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gdt->sc_bus_id[i] = id < GDT_MAXID_FC ? id : 0xff;
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}
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} else {
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/* New method failed, use fallback. */
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for (i = 0; i < GDT_MAXBUS; i++) {
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gdt_enc32(gccb->gc_scratch + GDT_GETCH_CHANNEL_NO, i);
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if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
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GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN,
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GDT_IO_CHANNEL | GDT_INVALID_CHANNEL,
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GDT_GETCH_SZ)) {
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if (i == 0) {
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printf("iir%d: Cannot get channel count, "
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"error %d\n", gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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break;
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}
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gdt->sc_bus_id[i] =
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(gccb->gc_scratch[GDT_GETCH_SIOP_ID] < GDT_MAXID_FC) ?
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gccb->gc_scratch[GDT_GETCH_SIOP_ID] : 0xff;
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}
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gdt->sc_bus_cnt = i;
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}
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/* add one "virtual" channel for the host drives */
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gdt->sc_virt_bus = gdt->sc_bus_cnt;
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gdt->sc_bus_cnt++;
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if (!gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_INIT,
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0, 0, 0)) {
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printf("iir%d: Raw service initialization error %d\n",
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gdt->sc_hanum, gdt->sc_status);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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/* Set/get features raw service (scatter/gather) */
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gdt->sc_raw_feat = 0;
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if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_SET_FEAT,
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GDT_SCATTER_GATHER, 0, 0)) {
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if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_GET_FEAT,
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0, 0, 0)) {
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gdt->sc_raw_feat = gdt->sc_info;
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if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
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panic("iir%d: Scatter/Gather Raw Service "
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"required but not supported!\n", gdt->sc_hanum);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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}
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}
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/* Set/get features cache service (scatter/gather) */
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gdt->sc_cache_feat = 0;
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if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_SET_FEAT,
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0, GDT_SCATTER_GATHER, 0)) {
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if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_GET_FEAT,
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0, 0, 0)) {
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gdt->sc_cache_feat = gdt->sc_info;
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if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
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panic("iir%d: Scatter/Gather Cache Service "
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"required but not supported!\n", gdt->sc_hanum);
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gdt_free_ccb(gdt, gccb);
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return (1);
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}
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}
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}
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/* OEM */
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gdt_enc32(gccb->gc_scratch + GDT_OEM_VERSION, 0x01);
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gdt_enc32(gccb->gc_scratch + GDT_OEM_BUFSIZE, sizeof(gdt_oem_record_t));
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if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
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GDT_OEM_STR_RECORD, GDT_INVALID_CHANNEL,
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sizeof(gdt_oem_str_record_t))) {
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strncpy(gdt->oem_name, ((gdt_oem_str_record_t *)
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gccb->gc_scratch)->text.scsi_host_drive_inquiry_vendor_id, 7);
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gdt->oem_name[7]='\0';
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} else {
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/* Old method, based on PCI ID */
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if (gdt->sc_vendor == INTEL_VENDOR_ID)
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strcpy(gdt->oem_name,"Intel ");
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else
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strcpy(gdt->oem_name,"ICP ");
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}
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/* Scan for cache devices */
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for (i = 0; i < cdev_cnt && i < GDT_MAX_HDRIVES; i++) {
|
|
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INFO,
|
|
i, 0, 0)) {
|
|
gdt->sc_hdr[i].hd_present = 1;
|
|
gdt->sc_hdr[i].hd_size = gdt->sc_info;
|
|
|
|
/*
|
|
* Evaluate mapping (sectors per head, heads per cyl)
|
|
*/
|
|
gdt->sc_hdr[i].hd_size &= ~GDT_SECS32;
|
|
if (gdt->sc_info2 == 0)
|
|
gdt_eval_mapping(gdt->sc_hdr[i].hd_size,
|
|
&drv_cyls, &drv_hds, &drv_secs);
|
|
else {
|
|
drv_hds = gdt->sc_info2 & 0xff;
|
|
drv_secs = (gdt->sc_info2 >> 8) & 0xff;
|
|
drv_cyls = gdt->sc_hdr[i].hd_size / drv_hds /
|
|
drv_secs;
|
|
}
|
|
gdt->sc_hdr[i].hd_heads = drv_hds;
|
|
gdt->sc_hdr[i].hd_secs = drv_secs;
|
|
/* Round the size */
|
|
gdt->sc_hdr[i].hd_size = drv_cyls * drv_hds * drv_secs;
|
|
|
|
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE,
|
|
GDT_DEVTYPE, i, 0, 0))
|
|
gdt->sc_hdr[i].hd_devtype = gdt->sc_info;
|
|
}
|
|
}
|
|
|
|
GDT_DPRINTF(GDT_D_INIT, ("dpmem %x %d-bus %d cache device%s\n",
|
|
gdt->sc_dpmembase,
|
|
gdt->sc_bus_cnt, cdev_cnt,
|
|
cdev_cnt == 1 ? "" : "s"));
|
|
gdt_free_ccb(gdt, gccb);
|
|
|
|
gdt_cnt++;
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
iir_free(struct gdt_softc *gdt)
|
|
{
|
|
int i;
|
|
|
|
GDT_DPRINTF(GDT_D_INIT, ("iir_free()\n"));
|
|
|
|
switch (gdt->sc_init_level) {
|
|
default:
|
|
gdt_destroy_dev(gdt->sc_dev);
|
|
case 5:
|
|
for (i = GDT_MAXCMDS-1; i >= 0; i--)
|
|
if (gdt->sc_gccbs[i].gc_map_flag)
|
|
bus_dmamap_destroy(gdt->sc_buffer_dmat,
|
|
gdt->sc_gccbs[i].gc_dmamap);
|
|
bus_dmamap_unload(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap);
|
|
case 4:
|
|
bus_dmamem_free(gdt->sc_gccb_dmat, gdt->sc_gccbs, gdt->sc_gccb_dmamap);
|
|
case 3:
|
|
bus_dma_tag_destroy(gdt->sc_gccb_dmat);
|
|
case 2:
|
|
bus_dma_tag_destroy(gdt->sc_buffer_dmat);
|
|
case 1:
|
|
bus_dma_tag_destroy(gdt->sc_parent_dmat);
|
|
case 0:
|
|
break;
|
|
}
|
|
TAILQ_REMOVE(&gdt_softcs, gdt, links);
|
|
}
|
|
|
|
void
|
|
iir_attach(struct gdt_softc *gdt)
|
|
{
|
|
struct cam_devq *devq;
|
|
int i;
|
|
|
|
GDT_DPRINTF(GDT_D_INIT, ("iir_attach()\n"));
|
|
|
|
/*
|
|
* Create the device queue for our SIM.
|
|
*/
|
|
devq = cam_simq_alloc(GDT_MAXCMDS);
|
|
if (devq == NULL)
|
|
return;
|
|
|
|
for (i = 0; i < gdt->sc_bus_cnt; i++) {
|
|
/*
|
|
* Construct our SIM entry
|
|
*/
|
|
gdt->sims[i] = cam_sim_alloc(iir_action, iir_poll, "iir",
|
|
gdt, gdt->sc_hanum, /*untagged*/2,
|
|
/*tagged*/GDT_MAXCMDS, devq);
|
|
if (xpt_bus_register(gdt->sims[i], i) != CAM_SUCCESS) {
|
|
cam_sim_free(gdt->sims[i], /*free_devq*/i == 0);
|
|
break;
|
|
}
|
|
|
|
if (xpt_create_path(&gdt->paths[i], /*periph*/NULL,
|
|
cam_sim_path(gdt->sims[i]),
|
|
CAM_TARGET_WILDCARD,
|
|
CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
|
|
xpt_bus_deregister(cam_sim_path(gdt->sims[i]));
|
|
cam_sim_free(gdt->sims[i], /*free_devq*/i == 0);
|
|
break;
|
|
}
|
|
}
|
|
if (i > 0)
|
|
EVENTHANDLER_REGISTER(shutdown_final, iir_shutdown,
|
|
gdt, SHUTDOWN_PRI_DEFAULT);
|
|
/* iir_watchdog(gdt); */
|
|
gdt->sc_state = GDT_NORMAL;
|
|
}
|
|
|
|
static void
|
|
gdt_eval_mapping(u_int32_t size, int *cyls, int *heads, int *secs)
|
|
{
|
|
*cyls = size / GDT_HEADS / GDT_SECS;
|
|
if (*cyls < GDT_MAXCYLS) {
|
|
*heads = GDT_HEADS;
|
|
*secs = GDT_SECS;
|
|
} else {
|
|
/* Too high for 64 * 32 */
|
|
*cyls = size / GDT_MEDHEADS / GDT_MEDSECS;
|
|
if (*cyls < GDT_MAXCYLS) {
|
|
*heads = GDT_MEDHEADS;
|
|
*secs = GDT_MEDSECS;
|
|
} else {
|
|
/* Too high for 127 * 63 */
|
|
*cyls = size / GDT_BIGHEADS / GDT_BIGSECS;
|
|
*heads = GDT_BIGHEADS;
|
|
*secs = GDT_BIGSECS;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *gccb,
|
|
int timeout)
|
|
{
|
|
int rv = 0;
|
|
|
|
GDT_DPRINTF(GDT_D_INIT,
|
|
("gdt_wait(%p, %p, %d)\n", gdt, gccb, timeout));
|
|
|
|
gdt->sc_state |= GDT_POLL_WAIT;
|
|
do {
|
|
iir_intr(gdt);
|
|
if (gdt == gdt_wait_gdt &&
|
|
gccb->gc_cmd_index == gdt_wait_index) {
|
|
rv = 1;
|
|
break;
|
|
}
|
|
DELAY(1);
|
|
} while (--timeout);
|
|
gdt->sc_state &= ~GDT_POLL_WAIT;
|
|
|
|
while (gdt->sc_test_busy(gdt))
|
|
DELAY(1); /* XXX correct? */
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
gdt_internal_cmd(struct gdt_softc *gdt, struct gdt_ccb *gccb,
|
|
u_int8_t service, u_int16_t opcode,
|
|
u_int32_t arg1, u_int32_t arg2, u_int32_t arg3)
|
|
{
|
|
int retries;
|
|
|
|
GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cmd(%p, %d, %d, %d, %d, %d)\n",
|
|
gdt, service, opcode, arg1, arg2, arg3));
|
|
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
|
|
for (retries = GDT_RETRIES; ; ) {
|
|
gccb->gc_service = service;
|
|
gccb->gc_flags = GDT_GCF_INTERNAL;
|
|
|
|
gdt->sc_set_sema0(gdt);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode);
|
|
|
|
switch (service) {
|
|
case GDT_CACHESERVICE:
|
|
if (opcode == GDT_IOCTL) {
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_IOCTL_SUBFUNC, arg1);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_IOCTL_CHANNEL, arg2);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_IOCTL_PARAM_SIZE, (u_int16_t)arg3);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
} else {
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_CACHE_DEVICENO, (u_int16_t)arg1);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_CACHE_BLOCKNO, arg2);
|
|
}
|
|
break;
|
|
|
|
case GDT_SCSIRAWSERVICE:
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION +
|
|
GDT_RAW_DIRECTION, arg1);
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
|
|
(u_int8_t)arg2;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
|
|
(u_int8_t)arg3;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
|
|
(u_int8_t)(arg3 >> 8);
|
|
}
|
|
|
|
gdt->sc_cmd_len = GDT_CMD_SZ;
|
|
gdt->sc_cmd_off = 0;
|
|
gdt->sc_cmd_cnt = 0;
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
gdt->sc_release_event(gdt);
|
|
DELAY(20);
|
|
if (!gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT))
|
|
return (0);
|
|
if (gdt->sc_status != GDT_S_BSY || --retries == 0)
|
|
break;
|
|
DELAY(1);
|
|
}
|
|
return (gdt->sc_status == GDT_S_OK);
|
|
}
|
|
|
|
static struct gdt_ccb *
|
|
gdt_get_ccb(struct gdt_softc *gdt)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
int lock;
|
|
|
|
GDT_DPRINTF(GDT_D_QUEUE, ("gdt_get_ccb(%p)\n", gdt));
|
|
|
|
lock = splcam();
|
|
gccb = SLIST_FIRST(&gdt->sc_free_gccb);
|
|
if (gccb != NULL) {
|
|
SLIST_REMOVE_HEAD(&gdt->sc_free_gccb, sle);
|
|
SLIST_INSERT_HEAD(&gdt->sc_pending_gccb, gccb, sle);
|
|
++gdt_stat.cmd_index_act;
|
|
if (gdt_stat.cmd_index_act > gdt_stat.cmd_index_max)
|
|
gdt_stat.cmd_index_max = gdt_stat.cmd_index_act;
|
|
}
|
|
splx(lock);
|
|
return (gccb);
|
|
}
|
|
|
|
void
|
|
gdt_free_ccb(struct gdt_softc *gdt, struct gdt_ccb *gccb)
|
|
{
|
|
int lock;
|
|
|
|
GDT_DPRINTF(GDT_D_QUEUE, ("gdt_free_ccb(%p, %p)\n", gdt, gccb));
|
|
|
|
lock = splcam();
|
|
gccb->gc_flags = GDT_GCF_UNUSED;
|
|
SLIST_REMOVE(&gdt->sc_pending_gccb, gccb, gdt_ccb, sle);
|
|
SLIST_INSERT_HEAD(&gdt->sc_free_gccb, gccb, sle);
|
|
--gdt_stat.cmd_index_act;
|
|
splx(lock);
|
|
if (gdt->sc_state & GDT_SHUTDOWN)
|
|
wakeup(gccb);
|
|
}
|
|
|
|
static u_int32_t
|
|
gdt_ccb_vtop(struct gdt_softc *gdt, struct gdt_ccb *gccb)
|
|
{
|
|
return (gdt->sc_gccb_busbase
|
|
+ (u_int32_t)((caddr_t)gccb - (caddr_t)gdt->sc_gccbs));
|
|
}
|
|
|
|
void
|
|
gdt_next(struct gdt_softc *gdt)
|
|
{
|
|
int lock;
|
|
union ccb *ccb;
|
|
gdt_ucmd_t *ucmd;
|
|
struct cam_sim *sim;
|
|
int bus, target, lun;
|
|
int next_cmd;
|
|
|
|
struct ccb_scsiio *csio;
|
|
struct ccb_hdr *ccbh;
|
|
struct gdt_ccb *gccb = NULL;
|
|
u_int8_t cmd;
|
|
|
|
GDT_DPRINTF(GDT_D_QUEUE, ("gdt_next(%p)\n", gdt));
|
|
|
|
lock = splcam();
|
|
if (gdt->sc_test_busy(gdt)) {
|
|
if (!(gdt->sc_state & GDT_POLLING)) {
|
|
splx(lock);
|
|
return;
|
|
}
|
|
while (gdt->sc_test_busy(gdt))
|
|
DELAY(1);
|
|
}
|
|
|
|
gdt->sc_cmd_cnt = gdt->sc_cmd_off = 0;
|
|
next_cmd = TRUE;
|
|
for (;;) {
|
|
/* I/Os in queue? controller ready? */
|
|
if (!TAILQ_FIRST(&gdt->sc_ucmd_queue) &&
|
|
!TAILQ_FIRST(&gdt->sc_ccb_queue))
|
|
break;
|
|
|
|
/* 1.: I/Os without ccb (IOCTLs) */
|
|
ucmd = TAILQ_FIRST(&gdt->sc_ucmd_queue);
|
|
if (ucmd != NULL) {
|
|
TAILQ_REMOVE(&gdt->sc_ucmd_queue, ucmd, links);
|
|
if ((gccb = gdt_ioctl_cmd(gdt, ucmd, &lock)) == NULL) {
|
|
TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links);
|
|
break;
|
|
}
|
|
break;
|
|
/* wenn mehrere Kdos. zulassen: if (!gdt_polling) continue; */
|
|
}
|
|
|
|
/* 2.: I/Os with ccb */
|
|
ccb = (union ccb *)TAILQ_FIRST(&gdt->sc_ccb_queue);
|
|
/* ist dann immer != NULL, da oben getestet */
|
|
sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
|
|
bus = cam_sim_bus(sim);
|
|
target = ccb->ccb_h.target_id;
|
|
lun = ccb->ccb_h.target_lun;
|
|
|
|
TAILQ_REMOVE(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
|
|
--gdt_stat.req_queue_act;
|
|
/* ccb->ccb_h.func_code is XPT_SCSI_IO */
|
|
GDT_DPRINTF(GDT_D_QUEUE, ("XPT_SCSI_IO flags 0x%x)\n",
|
|
ccb->ccb_h.flags));
|
|
csio = &ccb->csio;
|
|
ccbh = &ccb->ccb_h;
|
|
cmd = csio->cdb_io.cdb_bytes[0];
|
|
/* Max CDB length is 12 bytes */
|
|
if (csio->cdb_len > 12) {
|
|
ccbh->status = CAM_REQ_INVALID;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
} else if (bus != gdt->sc_virt_bus) {
|
|
/* raw service command */
|
|
if ((gccb = gdt_raw_cmd(gdt, ccb, &lock)) == NULL) {
|
|
TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h,
|
|
sim_links.tqe);
|
|
++gdt_stat.req_queue_act;
|
|
if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
|
|
gdt_stat.req_queue_max = gdt_stat.req_queue_act;
|
|
next_cmd = FALSE;
|
|
}
|
|
} else if (target >= GDT_MAX_HDRIVES ||
|
|
!gdt->sc_hdr[target].hd_present || lun != 0) {
|
|
ccbh->status = CAM_DEV_NOT_THERE;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
} else {
|
|
/* cache service command */
|
|
if (cmd == READ_6 || cmd == WRITE_6 ||
|
|
cmd == READ_10 || cmd == WRITE_10) {
|
|
if ((gccb = gdt_cache_cmd(gdt, ccb, &lock)) == NULL) {
|
|
TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h,
|
|
sim_links.tqe);
|
|
++gdt_stat.req_queue_act;
|
|
if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
|
|
gdt_stat.req_queue_max = gdt_stat.req_queue_act;
|
|
next_cmd = FALSE;
|
|
}
|
|
} else {
|
|
splx(lock);
|
|
gdt_internal_cache_cmd(gdt, ccb);
|
|
lock = splcam();
|
|
}
|
|
}
|
|
if ((gdt->sc_state & GDT_POLLING) || !next_cmd)
|
|
break;
|
|
}
|
|
if (gdt->sc_cmd_cnt > 0)
|
|
gdt->sc_release_event(gdt);
|
|
|
|
splx(lock);
|
|
|
|
if ((gdt->sc_state & GDT_POLLING) && gdt->sc_cmd_cnt > 0) {
|
|
gdt_wait(gdt, gccb, GDT_POLL_TIMEOUT);
|
|
}
|
|
}
|
|
|
|
static struct gdt_ccb *
|
|
gdt_raw_cmd(struct gdt_softc *gdt, union ccb *ccb, int *lock)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
struct cam_sim *sim;
|
|
|
|
GDT_DPRINTF(GDT_D_CMD, ("gdt_raw_cmd(%p, %p)\n", gdt, ccb));
|
|
|
|
if (roundup(GDT_CMD_UNION + GDT_RAW_SZ, sizeof(u_int32_t)) +
|
|
gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET >
|
|
gdt->sc_ic_all_size) {
|
|
GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_raw_cmd(): DPMEM overflow\n",
|
|
gdt->sc_hanum));
|
|
return (NULL);
|
|
}
|
|
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
GDT_DPRINTF(GDT_D_INVALID, ("iir%d: No free command index found\n",
|
|
gdt->sc_hanum));
|
|
return (gccb);
|
|
}
|
|
sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
|
|
gccb->gc_ccb = ccb;
|
|
gccb->gc_service = GDT_SCSIRAWSERVICE;
|
|
gccb->gc_flags = GDT_GCF_SCSI;
|
|
|
|
if (gdt->sc_cmd_cnt == 0)
|
|
gdt->sc_set_sema0(gdt);
|
|
splx(*lock);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
|
|
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION,
|
|
(ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN ?
|
|
GDT_DATA_IN : GDT_DATA_OUT);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
|
|
ccb->csio.dxfer_len);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
|
|
ccb->csio.cdb_len);
|
|
bcopy(ccb->csio.cdb_io.cdb_bytes, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
|
|
ccb->csio.cdb_len);
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
|
|
ccb->ccb_h.target_id;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
|
|
ccb->ccb_h.target_lun;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
|
|
cam_sim_bus(sim);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
|
|
sizeof(struct scsi_sense_data));
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
|
|
/*
|
|
* 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 ((ccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
|
|
if ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
|
|
if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
|
|
int s;
|
|
int error;
|
|
|
|
/* vorher unlock von splcam() ??? */
|
|
s = splsoftvm();
|
|
error =
|
|
bus_dmamap_load(gdt->sc_buffer_dmat,
|
|
gccb->gc_dmamap,
|
|
ccb->csio.data_ptr,
|
|
ccb->csio.dxfer_len,
|
|
gdtexecuteccb,
|
|
gccb, /*flags*/0);
|
|
if (error == EINPROGRESS) {
|
|
xpt_freeze_simq(sim, 1);
|
|
gccb->gc_state |= CAM_RELEASE_SIMQ;
|
|
}
|
|
splx(s);
|
|
} else {
|
|
struct bus_dma_segment seg;
|
|
|
|
/* Pointer to physical buffer */
|
|
seg.ds_addr =
|
|
(bus_addr_t)ccb->csio.data_ptr;
|
|
seg.ds_len = ccb->csio.dxfer_len;
|
|
gdtexecuteccb(gccb, &seg, 1, 0);
|
|
}
|
|
} else {
|
|
struct bus_dma_segment *segs;
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0)
|
|
panic("iir%d: iir_action - Physical "
|
|
"segment pointers unsupported", gdt->sc_hanum);
|
|
|
|
if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0)
|
|
panic("iir%d: iir_action - Virtual "
|
|
"segment addresses unsupported", gdt->sc_hanum);
|
|
|
|
/* Just use the segments provided */
|
|
segs = (struct bus_dma_segment *)ccb->csio.data_ptr;
|
|
gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0);
|
|
}
|
|
} else {
|
|
gdtexecuteccb(gccb, NULL, 0, 0);
|
|
}
|
|
|
|
*lock = splcam();
|
|
return (gccb);
|
|
}
|
|
|
|
static struct gdt_ccb *
|
|
gdt_cache_cmd(struct gdt_softc *gdt, union ccb *ccb, int *lock)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
struct cam_sim *sim;
|
|
u_int8_t *cmdp;
|
|
u_int16_t opcode;
|
|
u_int32_t blockno, blockcnt;
|
|
|
|
GDT_DPRINTF(GDT_D_CMD, ("gdt_cache_cmd(%p, %p)\n", gdt, ccb));
|
|
|
|
if (roundup(GDT_CMD_UNION + GDT_CACHE_SZ, sizeof(u_int32_t)) +
|
|
gdt->sc_cmd_off + GDT_DPMEM_COMMAND_OFFSET >
|
|
gdt->sc_ic_all_size) {
|
|
GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_cache_cmd(): DPMEM overflow\n",
|
|
gdt->sc_hanum));
|
|
return (NULL);
|
|
}
|
|
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n",
|
|
gdt->sc_hanum));
|
|
return (gccb);
|
|
}
|
|
sim = (struct cam_sim *)ccb->ccb_h.ccb_sim_ptr;
|
|
gccb->gc_ccb = ccb;
|
|
gccb->gc_service = GDT_CACHESERVICE;
|
|
gccb->gc_flags = GDT_GCF_SCSI;
|
|
|
|
if (gdt->sc_cmd_cnt == 0)
|
|
gdt->sc_set_sema0(gdt);
|
|
splx(*lock);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
cmdp = ccb->csio.cdb_io.cdb_bytes;
|
|
opcode = (*cmdp == WRITE_6 || *cmdp == WRITE_10) ? GDT_WRITE : GDT_READ;
|
|
if ((gdt->sc_state & GDT_SHUTDOWN) && opcode == GDT_WRITE)
|
|
opcode = GDT_WRITE_THR;
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, opcode);
|
|
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO,
|
|
ccb->ccb_h.target_id);
|
|
if (ccb->csio.cdb_len == 6) {
|
|
struct scsi_rw_6 *rw = (struct scsi_rw_6 *)cmdp;
|
|
blockno = scsi_3btoul(rw->addr) & ((SRW_TOPADDR<<16) | 0xffff);
|
|
blockcnt = rw->length ? rw->length : 0x100;
|
|
} else {
|
|
struct scsi_rw_10 *rw = (struct scsi_rw_10 *)cmdp;
|
|
blockno = scsi_4btoul(rw->addr);
|
|
blockcnt = scsi_2btoul(rw->length);
|
|
}
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
|
|
blockno);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT,
|
|
blockcnt);
|
|
|
|
/*
|
|
* 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 ((ccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
|
|
if ((ccb->ccb_h.flags & CAM_DATA_PHYS) == 0) {
|
|
int s;
|
|
int error;
|
|
|
|
/* vorher unlock von splcam() ??? */
|
|
s = splsoftvm();
|
|
error =
|
|
bus_dmamap_load(gdt->sc_buffer_dmat,
|
|
gccb->gc_dmamap,
|
|
ccb->csio.data_ptr,
|
|
ccb->csio.dxfer_len,
|
|
gdtexecuteccb,
|
|
gccb, /*flags*/0);
|
|
if (error == EINPROGRESS) {
|
|
xpt_freeze_simq(sim, 1);
|
|
gccb->gc_state |= CAM_RELEASE_SIMQ;
|
|
}
|
|
splx(s);
|
|
} else {
|
|
struct bus_dma_segment seg;
|
|
|
|
/* Pointer to physical buffer */
|
|
seg.ds_addr =
|
|
(bus_addr_t)ccb->csio.data_ptr;
|
|
seg.ds_len = ccb->csio.dxfer_len;
|
|
gdtexecuteccb(gccb, &seg, 1, 0);
|
|
}
|
|
} else {
|
|
struct bus_dma_segment *segs;
|
|
|
|
if ((ccb->ccb_h.flags & CAM_DATA_PHYS) != 0)
|
|
panic("iir%d: iir_action - Physical "
|
|
"segment pointers unsupported", gdt->sc_hanum);
|
|
|
|
if ((ccb->ccb_h.flags & CAM_SG_LIST_PHYS)==0)
|
|
panic("iir%d: iir_action - Virtual "
|
|
"segment addresses unsupported", gdt->sc_hanum);
|
|
|
|
/* Just use the segments provided */
|
|
segs = (struct bus_dma_segment *)ccb->csio.data_ptr;
|
|
gdtexecuteccb(gccb, segs, ccb->csio.sglist_cnt, 0);
|
|
}
|
|
|
|
*lock = splcam();
|
|
return (gccb);
|
|
}
|
|
|
|
static struct gdt_ccb *
|
|
gdt_ioctl_cmd(struct gdt_softc *gdt, gdt_ucmd_t *ucmd, int *lock)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
u_int32_t cnt;
|
|
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("gdt_ioctl_cmd(%p, %p)\n", gdt, ucmd));
|
|
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("iir%d: No free command index found\n",
|
|
gdt->sc_hanum));
|
|
return (gccb);
|
|
}
|
|
gccb->gc_ucmd = ucmd;
|
|
gccb->gc_service = ucmd->service;
|
|
gccb->gc_flags = GDT_GCF_IOCTL;
|
|
|
|
/* check DPMEM space, copy data buffer from user space */
|
|
if (ucmd->service == GDT_CACHESERVICE) {
|
|
if (ucmd->OpCode == GDT_IOCTL) {
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_IOCTL_SZ,
|
|
sizeof(u_int32_t));
|
|
cnt = ucmd->u.ioctl.param_size;
|
|
if (cnt > GDT_SCRATCH_SZ) {
|
|
printf("iir%d: Scratch buffer too small (%d/%d)\n",
|
|
gdt->sc_hanum, GDT_SCRATCH_SZ, cnt);
|
|
gdt_free_ccb(gdt, gccb);
|
|
return (NULL);
|
|
}
|
|
} else {
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
GDT_SG_SZ, sizeof(u_int32_t));
|
|
cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE;
|
|
if (cnt > GDT_SCRATCH_SZ) {
|
|
printf("iir%d: Scratch buffer too small (%d/%d)\n",
|
|
gdt->sc_hanum, GDT_SCRATCH_SZ, cnt);
|
|
gdt_free_ccb(gdt, gccb);
|
|
return (NULL);
|
|
}
|
|
}
|
|
} else {
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
GDT_SG_SZ, sizeof(u_int32_t));
|
|
cnt = ucmd->u.raw.sdlen;
|
|
if (cnt + ucmd->u.raw.sense_len > GDT_SCRATCH_SZ) {
|
|
printf("iir%d: Scratch buffer too small (%d/%d)\n",
|
|
gdt->sc_hanum, GDT_SCRATCH_SZ, cnt + ucmd->u.raw.sense_len);
|
|
gdt_free_ccb(gdt, gccb);
|
|
return (NULL);
|
|
}
|
|
}
|
|
if (cnt != 0)
|
|
bcopy(ucmd->data, gccb->gc_scratch, cnt);
|
|
|
|
if (gdt->sc_cmd_off + gdt->sc_cmd_len + GDT_DPMEM_COMMAND_OFFSET >
|
|
gdt->sc_ic_all_size) {
|
|
GDT_DPRINTF(GDT_D_INVALID, ("iir%d: gdt_ioctl_cmd(): DPMEM overflow\n",
|
|
gdt->sc_hanum));
|
|
gdt_free_ccb(gdt, gccb);
|
|
return (NULL);
|
|
}
|
|
|
|
if (gdt->sc_cmd_cnt == 0)
|
|
gdt->sc_set_sema0(gdt);
|
|
splx(*lock);
|
|
|
|
/* fill cmd structure */
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE,
|
|
ucmd->OpCode);
|
|
|
|
if (ucmd->service == GDT_CACHESERVICE) {
|
|
if (ucmd->OpCode == GDT_IOCTL) {
|
|
/* IOCTL */
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_PARAM_SIZE,
|
|
ucmd->u.ioctl.param_size);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_SUBFUNC,
|
|
ucmd->u.ioctl.subfunc);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_CHANNEL,
|
|
ucmd->u.ioctl.channel);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
} else {
|
|
/* cache service command */
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO,
|
|
ucmd->u.cache.DeviceNo);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
|
|
ucmd->u.cache.BlockNo);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT,
|
|
ucmd->u.cache.BlockCnt);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
|
|
0xffffffffUL);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
|
|
1);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
GDT_SG_LEN, ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE);
|
|
}
|
|
} else {
|
|
/* raw service command */
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION,
|
|
ucmd->u.raw.direction);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
|
|
0xffffffffUL);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
|
|
ucmd->u.raw.sdlen);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
|
|
ucmd->u.raw.clen);
|
|
bcopy(ucmd->u.raw.cmd, gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
|
|
12);
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
|
|
ucmd->u.raw.target;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
|
|
ucmd->u.raw.lun;
|
|
gdt->sc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
|
|
ucmd->u.raw.bus;
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
|
|
ucmd->u.raw.sense_len);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[ucmd->u.raw.sdlen]));
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
|
|
1);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
GDT_SG_PTR, gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
GDT_SG_LEN, ucmd->u.raw.sdlen);
|
|
}
|
|
|
|
*lock = splcam();
|
|
gdt_stat.sg_count_act = 1;
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
return (gccb);
|
|
}
|
|
|
|
static void
|
|
gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb)
|
|
{
|
|
int t;
|
|
|
|
t = ccb->ccb_h.target_id;
|
|
GDT_DPRINTF(GDT_D_CMD, ("gdt_internal_cache_cmd(%p, %p, 0x%x, %d)\n",
|
|
gdt, ccb, ccb->csio.cdb_io.cdb_bytes[0], t));
|
|
|
|
switch (ccb->csio.cdb_io.cdb_bytes[0]) {
|
|
case TEST_UNIT_READY:
|
|
case START_STOP:
|
|
break;
|
|
case REQUEST_SENSE:
|
|
GDT_DPRINTF(GDT_D_MISC, ("REQUEST_SENSE\n"));
|
|
break;
|
|
case INQUIRY:
|
|
{
|
|
struct scsi_inquiry_data *inq;
|
|
|
|
inq = (struct scsi_inquiry_data *)ccb->csio.data_ptr;
|
|
bzero(inq, sizeof(struct scsi_inquiry_data));
|
|
inq->device = (gdt->sc_hdr[t].hd_devtype & 4) ?
|
|
T_CDROM : T_DIRECT;
|
|
inq->dev_qual2 = (gdt->sc_hdr[t].hd_devtype & 1) ? 0x80 : 0;
|
|
inq->version = SCSI_REV_2;
|
|
inq->response_format = 2;
|
|
inq->additional_length = 32;
|
|
inq->flags = SID_CmdQue | SID_Sync;
|
|
strcpy(inq->vendor, gdt->oem_name);
|
|
sprintf(inq->product, "Host Drive #%02d", t);
|
|
strcpy(inq->revision, " ");
|
|
break;
|
|
}
|
|
case MODE_SENSE_6:
|
|
{
|
|
struct mpd_data {
|
|
struct scsi_mode_hdr_6 hd;
|
|
struct scsi_mode_block_descr bd;
|
|
struct scsi_control_page cp;
|
|
} *mpd;
|
|
u_int8_t page;
|
|
|
|
mpd = (struct mpd_data *)ccb->csio.data_ptr;
|
|
bzero(mpd, sizeof(struct mpd_data));
|
|
mpd->hd.datalen = sizeof(struct scsi_mode_hdr_6) +
|
|
sizeof(struct scsi_mode_block_descr);
|
|
mpd->hd.dev_specific = (gdt->sc_hdr[t].hd_devtype & 2) ? 0x80 : 0;
|
|
mpd->hd.block_descr_len = sizeof(struct scsi_mode_block_descr);
|
|
mpd->bd.block_len[0] = (GDT_SECTOR_SIZE & 0x00ff0000) >> 16;
|
|
mpd->bd.block_len[1] = (GDT_SECTOR_SIZE & 0x0000ff00) >> 8;
|
|
mpd->bd.block_len[2] = (GDT_SECTOR_SIZE & 0x000000ff);
|
|
page=((struct scsi_mode_sense_6 *)ccb->csio.cdb_io.cdb_bytes)->page;
|
|
switch (page) {
|
|
default:
|
|
GDT_DPRINTF(GDT_D_MISC, ("MODE_SENSE_6: page 0x%x\n", page));
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case READ_CAPACITY:
|
|
{
|
|
struct scsi_read_capacity_data *rcd;
|
|
|
|
rcd = (struct scsi_read_capacity_data *)ccb->csio.data_ptr;
|
|
bzero(rcd, sizeof(struct scsi_read_capacity_data));
|
|
scsi_ulto4b(gdt->sc_hdr[t].hd_size - 1, rcd->addr);
|
|
scsi_ulto4b(GDT_SECTOR_SIZE, rcd->length);
|
|
break;
|
|
}
|
|
default:
|
|
GDT_DPRINTF(GDT_D_MISC, ("gdt_internal_cache_cmd(%d) unknown\n",
|
|
ccb->csio.cdb_io.cdb_bytes[0]));
|
|
break;
|
|
}
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
}
|
|
|
|
static void
|
|
gdtmapmem(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
|
|
{
|
|
bus_addr_t *busaddrp;
|
|
|
|
busaddrp = (bus_addr_t *)arg;
|
|
*busaddrp = dm_segs->ds_addr;
|
|
}
|
|
|
|
static void
|
|
gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
union ccb *ccb;
|
|
struct gdt_softc *gdt;
|
|
int i, lock;
|
|
|
|
lock = splcam();
|
|
|
|
gccb = (struct gdt_ccb *)arg;
|
|
ccb = gccb->gc_ccb;
|
|
gdt = cam_sim_softc((struct cam_sim *)ccb->ccb_h.ccb_sim_ptr);
|
|
|
|
GDT_DPRINTF(GDT_D_CMD, ("gdtexecuteccb(%p, %p, %p, %d, %d)\n",
|
|
gdt, gccb, dm_segs, nseg, error));
|
|
gdt_stat.sg_count_act = nseg;
|
|
if (nseg > gdt_stat.sg_count_max)
|
|
gdt_stat.sg_count_max = nseg;
|
|
|
|
/* Copy the segments into our SG list */
|
|
if (gccb->gc_service == GDT_CACHESERVICE) {
|
|
for (i = 0; i < nseg; ++i) {
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
|
|
dm_segs++;
|
|
}
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
|
|
nseg);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
|
|
0xffffffffUL);
|
|
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_CACHE_SG_LST +
|
|
nseg * GDT_SG_SZ, sizeof(u_int32_t));
|
|
} else {
|
|
for (i = 0; i < nseg; ++i) {
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
|
|
dm_segs++;
|
|
}
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
|
|
nseg);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
|
|
0xffffffffUL);
|
|
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_RAW_SG_LST +
|
|
nseg * GDT_SG_SZ, sizeof(u_int32_t));
|
|
}
|
|
|
|
if (nseg != 0) {
|
|
bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap,
|
|
(ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN ?
|
|
BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE);
|
|
}
|
|
|
|
/* We must NOT abort the command here if CAM_REQ_INPROG is not set,
|
|
* because command semaphore is already set!
|
|
*/
|
|
|
|
ccb->ccb_h.status |= CAM_SIM_QUEUED;
|
|
/* timeout handling */
|
|
ccb->ccb_h.timeout_ch =
|
|
timeout(iir_timeout, (caddr_t)gccb,
|
|
(ccb->ccb_h.timeout * hz) / 1000);
|
|
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
splx(lock);
|
|
}
|
|
|
|
|
|
static void
|
|
iir_action( struct cam_sim *sim, union ccb *ccb )
|
|
{
|
|
struct gdt_softc *gdt;
|
|
int lock, bus, target, lun;
|
|
|
|
gdt = (struct gdt_softc *)cam_sim_softc( sim );
|
|
ccb->ccb_h.ccb_sim_ptr = sim;
|
|
bus = cam_sim_bus(sim);
|
|
target = ccb->ccb_h.target_id;
|
|
lun = ccb->ccb_h.target_lun;
|
|
GDT_DPRINTF(GDT_D_CMD,
|
|
("iir_action(%p) func 0x%x cmd 0x%x bus %d target %d lun %d\n",
|
|
gdt, ccb->ccb_h.func_code, ccb->csio.cdb_io.cdb_bytes[0],
|
|
bus, target, lun));
|
|
++gdt_stat.io_count_act;
|
|
if (gdt_stat.io_count_act > gdt_stat.io_count_max)
|
|
gdt_stat.io_count_max = gdt_stat.io_count_act;
|
|
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_SCSI_IO:
|
|
lock = splcam();
|
|
TAILQ_INSERT_TAIL(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
|
|
++gdt_stat.req_queue_act;
|
|
if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
|
|
gdt_stat.req_queue_max = gdt_stat.req_queue_act;
|
|
splx(lock);
|
|
gdt_next(gdt);
|
|
break;
|
|
case XPT_RESET_DEV: /* Bus Device Reset the specified SCSI device */
|
|
case XPT_ABORT: /* Abort the specified CCB */
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_SET_TRAN_SETTINGS:
|
|
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
|
|
--gdt_stat.io_count_act;
|
|
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 << target;
|
|
if ((cts->flags & CCB_TRANS_USER_SETTINGS) != 0) {
|
|
cts->flags = CCB_TRANS_DISC_ENB|CCB_TRANS_TAG_ENB;
|
|
cts->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
|
|
cts->sync_period = 25; /* 10MHz */
|
|
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;
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
|
|
}
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_CALC_GEOMETRY:
|
|
{
|
|
struct ccb_calc_geometry *ccg;
|
|
u_int32_t secs_per_cylinder;
|
|
|
|
ccg = &ccb->ccg;
|
|
ccg->heads = gdt->sc_hdr[target].hd_heads;
|
|
ccg->secs_per_track = gdt->sc_hdr[target].hd_secs;
|
|
secs_per_cylinder = ccg->heads * ccg->secs_per_track;
|
|
ccg->cylinders = ccg->volume_size / secs_per_cylinder;
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_RESET_BUS: /* Reset the specified SCSI bus */
|
|
{
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
case XPT_TERM_IO: /* Terminate the I/O process */
|
|
/* XXX Implement */
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
case XPT_PATH_INQ: /* Path routing inquiry */
|
|
{
|
|
struct ccb_pathinq *cpi = &ccb->cpi;
|
|
|
|
cpi->version_num = 1;
|
|
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE;
|
|
cpi->hba_inquiry |= PI_WIDE_16;
|
|
cpi->target_sprt = 1;
|
|
cpi->hba_misc = 0;
|
|
cpi->hba_eng_cnt = 0;
|
|
if (bus == gdt->sc_virt_bus)
|
|
cpi->max_target = GDT_MAX_HDRIVES - 1;
|
|
else if (gdt->sc_class & GDT_FC)
|
|
cpi->max_target = GDT_MAXID_FC - 1;
|
|
else
|
|
cpi->max_target = GDT_MAXID - 1;
|
|
cpi->max_lun = 7;
|
|
cpi->unit_number = cam_sim_unit(sim);
|
|
cpi->bus_id = bus;
|
|
cpi->initiator_id =
|
|
(bus == gdt->sc_virt_bus ? 127 : gdt->sc_bus_id[bus]);
|
|
cpi->base_transfer_speed = 3300;
|
|
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
|
|
if (gdt->sc_vendor == INTEL_VENDOR_ID)
|
|
strncpy(cpi->hba_vid, "Intel Corp.", HBA_IDLEN);
|
|
else
|
|
strncpy(cpi->hba_vid, "ICP vortex ", HBA_IDLEN);
|
|
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
|
|
cpi->ccb_h.status = CAM_REQ_CMP;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
default:
|
|
GDT_DPRINTF(GDT_D_INVALID, ("gdt_next(%p) cmd 0x%x invalid\n",
|
|
gdt, ccb->ccb_h.func_code));
|
|
ccb->ccb_h.status = CAM_REQ_INVALID;
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
iir_poll( struct cam_sim *sim )
|
|
{
|
|
struct gdt_softc *gdt;
|
|
|
|
gdt = (struct gdt_softc *)cam_sim_softc( sim );
|
|
GDT_DPRINTF(GDT_D_CMD, ("iir_poll sim %p gdt %p\n", sim, gdt));
|
|
iir_intr(gdt);
|
|
}
|
|
|
|
static void
|
|
iir_timeout(void *arg)
|
|
{
|
|
GDT_DPRINTF(GDT_D_TIMEOUT, ("iir_timeout(%p)\n", arg));
|
|
}
|
|
|
|
static void
|
|
iir_watchdog(void *arg)
|
|
{
|
|
struct gdt_softc *gdt;
|
|
|
|
gdt = (struct gdt_softc *)arg;
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("iir_watchdog(%p)\n", gdt));
|
|
|
|
{
|
|
int ccbs = 0, ucmds = 0, frees = 0, pends = 0;
|
|
struct gdt_ccb *p;
|
|
struct ccb_hdr *h;
|
|
struct gdt_ucmd *u;
|
|
|
|
for (h = TAILQ_FIRST(&gdt->sc_ccb_queue); h != NULL;
|
|
h = TAILQ_NEXT(h, sim_links.tqe))
|
|
ccbs++;
|
|
for (u = TAILQ_FIRST(&gdt->sc_ucmd_queue); u != NULL;
|
|
u = TAILQ_NEXT(u, links))
|
|
ucmds++;
|
|
for (p = SLIST_FIRST(&gdt->sc_free_gccb); p != NULL;
|
|
p = SLIST_NEXT(p, sle))
|
|
frees++;
|
|
for (p = SLIST_FIRST(&gdt->sc_pending_gccb); p != NULL;
|
|
p = SLIST_NEXT(p, sle))
|
|
pends++;
|
|
|
|
GDT_DPRINTF(GDT_D_TIMEOUT, ("ccbs %d ucmds %d frees %d pends %d\n",
|
|
ccbs, ucmds, frees, pends));
|
|
}
|
|
|
|
timeout(iir_watchdog, (caddr_t)gdt, hz * 15);
|
|
}
|
|
|
|
static void
|
|
iir_shutdown( void *arg, int howto )
|
|
{
|
|
struct gdt_softc *gdt;
|
|
struct gdt_ccb *gccb;
|
|
gdt_ucmd_t *ucmd;
|
|
int lock, i;
|
|
|
|
gdt = (struct gdt_softc *)arg;
|
|
GDT_DPRINTF(GDT_D_CMD, ("iir_shutdown(%p, %d)\n", gdt, howto));
|
|
|
|
printf("iir%d: Flushing all Host Drives. Please wait ... ",
|
|
gdt->sc_hanum);
|
|
|
|
/* allocate ucmd buffer */
|
|
ucmd = malloc(sizeof(gdt_ucmd_t), M_DEVBUF, M_NOWAIT);
|
|
if (ucmd == NULL) {
|
|
printf("iir%d: iir_shutdown(): Cannot allocate resource\n",
|
|
gdt->sc_hanum);
|
|
return;
|
|
}
|
|
bzero(ucmd, sizeof(gdt_ucmd_t));
|
|
|
|
/* wait for pending IOs */
|
|
lock = splcam();
|
|
gdt->sc_state = GDT_SHUTDOWN;
|
|
splx(lock);
|
|
if ((gccb = SLIST_FIRST(&gdt->sc_pending_gccb)) != NULL)
|
|
(void) tsleep((void *)gccb, PCATCH | PRIBIO, "iirshw", 100 * hz);
|
|
|
|
/* flush */
|
|
for (i = 0; i < GDT_MAX_HDRIVES; ++i) {
|
|
if (gdt->sc_hdr[i].hd_present) {
|
|
ucmd->service = GDT_CACHESERVICE;
|
|
ucmd->OpCode = GDT_FLUSH;
|
|
ucmd->u.cache.DeviceNo = i;
|
|
lock = splcam();
|
|
TAILQ_INSERT_TAIL(&gdt->sc_ucmd_queue, ucmd, links);
|
|
ucmd->complete_flag = FALSE;
|
|
splx(lock);
|
|
gdt_next(gdt);
|
|
if (!ucmd->complete_flag)
|
|
(void) tsleep((void *)ucmd, PCATCH|PRIBIO, "iirshw", 10*hz);
|
|
}
|
|
}
|
|
|
|
free(ucmd, M_DEVBUF);
|
|
printf("Done.\n");
|
|
}
|
|
|
|
void
|
|
iir_intr(void *arg)
|
|
{
|
|
struct gdt_softc *gdt = arg;
|
|
struct gdt_intr_ctx ctx;
|
|
int lock = 0;
|
|
struct gdt_ccb *gccb;
|
|
gdt_ucmd_t *ucmd;
|
|
u_int32_t cnt;
|
|
|
|
GDT_DPRINTF(GDT_D_INTR, ("gdt_intr(%p)\n", gdt));
|
|
|
|
/* If polling and we were not called from gdt_wait, just return */
|
|
if ((gdt->sc_state & GDT_POLLING) &&
|
|
!(gdt->sc_state & GDT_POLL_WAIT))
|
|
return;
|
|
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
lock = splcam();
|
|
gdt_wait_index = 0;
|
|
|
|
ctx.istatus = gdt->sc_get_status(gdt);
|
|
if (!ctx.istatus) {
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
gdt->sc_status = GDT_S_NO_STATUS;
|
|
return;
|
|
}
|
|
|
|
gdt->sc_intr(gdt, &ctx);
|
|
|
|
gdt->sc_status = ctx.cmd_status;
|
|
gdt->sc_service = ctx.service;
|
|
gdt->sc_info = ctx.info;
|
|
gdt->sc_info2 = ctx.info2;
|
|
|
|
if (gdt->sc_state & GDT_POLL_WAIT) {
|
|
gdt_wait_gdt = gdt;
|
|
gdt_wait_index = ctx.istatus;
|
|
}
|
|
|
|
if (ctx.istatus == GDT_ASYNCINDEX) {
|
|
gdt_async_event(gdt, ctx.service);
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
return;
|
|
}
|
|
if (ctx.istatus == GDT_SPEZINDEX) {
|
|
GDT_DPRINTF(GDT_D_INVALID,
|
|
("iir%d: Service unknown or not initialized!\n",
|
|
gdt->sc_hanum));
|
|
gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver);
|
|
gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum;
|
|
gdt_store_event(GDT_ES_DRIVER, 4, &gdt->sc_dvr);
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
return;
|
|
}
|
|
|
|
gccb = &gdt->sc_gccbs[ctx.istatus - 2];
|
|
ctx.service = gccb->gc_service;
|
|
|
|
switch (gccb->gc_flags) {
|
|
case GDT_GCF_UNUSED:
|
|
GDT_DPRINTF(GDT_D_INVALID, ("iir%d: Index (%d) to unused command!\n",
|
|
gdt->sc_hanum, ctx.istatus));
|
|
gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.driver);
|
|
gdt->sc_dvr.eu.driver.ionode = gdt->sc_hanum;
|
|
gdt->sc_dvr.eu.driver.index = ctx.istatus;
|
|
gdt_store_event(GDT_ES_DRIVER, 1, &gdt->sc_dvr);
|
|
gdt_free_ccb(gdt, gccb);
|
|
/* fallthrough */
|
|
|
|
case GDT_GCF_INTERNAL:
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
break;
|
|
|
|
case GDT_GCF_IOCTL:
|
|
ucmd = gccb->gc_ucmd;
|
|
if (gdt->sc_status == GDT_S_BSY) {
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("iir_intr(%p) ioctl: gccb %p busy\n",
|
|
gdt, gccb));
|
|
TAILQ_INSERT_HEAD(&gdt->sc_ucmd_queue, ucmd, links);
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
} else {
|
|
ucmd->status = gdt->sc_status;
|
|
ucmd->info = gdt->sc_info;
|
|
ucmd->complete_flag = TRUE;
|
|
if (ucmd->service == GDT_CACHESERVICE) {
|
|
if (ucmd->OpCode == GDT_IOCTL) {
|
|
cnt = ucmd->u.ioctl.param_size;
|
|
if (cnt != 0)
|
|
bcopy(gccb->gc_scratch, ucmd->data, cnt);
|
|
} else {
|
|
cnt = ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE;
|
|
if (cnt != 0)
|
|
bcopy(gccb->gc_scratch, ucmd->data, cnt);
|
|
}
|
|
} else {
|
|
cnt = ucmd->u.raw.sdlen;
|
|
if (cnt != 0)
|
|
bcopy(gccb->gc_scratch, ucmd->data, cnt);
|
|
if (ucmd->u.raw.sense_len != 0)
|
|
bcopy(gccb->gc_scratch, ucmd->data, cnt);
|
|
}
|
|
gdt_free_ccb(gdt, gccb);
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
/* wakeup */
|
|
wakeup(ucmd);
|
|
}
|
|
gdt_next(gdt);
|
|
break;
|
|
|
|
default:
|
|
gdt_free_ccb(gdt, gccb);
|
|
gdt_sync_event(gdt, ctx.service, ctx.istatus, gccb);
|
|
if (!(gdt->sc_state & GDT_POLLING))
|
|
splx(lock);
|
|
gdt_next(gdt);
|
|
break;
|
|
}
|
|
}
|
|
|
|
int
|
|
gdt_async_event(struct gdt_softc *gdt, int service)
|
|
{
|
|
struct gdt_ccb *gccb;
|
|
|
|
GDT_DPRINTF(GDT_D_INTR, ("gdt_async_event(%p, %d)\n", gdt, service));
|
|
|
|
if (service == GDT_SCREENSERVICE) {
|
|
if (gdt->sc_status == GDT_MSG_REQUEST) {
|
|
while (gdt->sc_test_busy(gdt))
|
|
DELAY(1);
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
printf("iir%d: No free command index found\n",
|
|
gdt->sc_hanum);
|
|
return (1);
|
|
}
|
|
gccb->gc_service = service;
|
|
gccb->gc_flags = GDT_GCF_SCREEN;
|
|
gdt->sc_set_sema0(gdt);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
|
|
GDT_MSG_INV_HANDLE);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
gdt->sc_cmd_off = 0;
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
|
|
sizeof(u_int32_t));
|
|
gdt->sc_cmd_cnt = 0;
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
printf("iir%d: [PCI %d/%d] ",
|
|
gdt->sc_hanum,gdt->sc_bus,gdt->sc_slot);
|
|
gdt->sc_release_event(gdt);
|
|
}
|
|
|
|
} else {
|
|
if ((gdt->sc_fw_vers & 0xff) >= 0x1a) {
|
|
gdt->sc_dvr.size = 0;
|
|
gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum;
|
|
gdt->sc_dvr.eu.async.status = gdt->sc_status;
|
|
/* severity and event_string already set! */
|
|
} else {
|
|
gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.async);
|
|
gdt->sc_dvr.eu.async.ionode = gdt->sc_hanum;
|
|
gdt->sc_dvr.eu.async.service = service;
|
|
gdt->sc_dvr.eu.async.status = gdt->sc_status;
|
|
gdt->sc_dvr.eu.async.info = gdt->sc_info;
|
|
*(u_int32_t *)gdt->sc_dvr.eu.async.scsi_coord = gdt->sc_info2;
|
|
}
|
|
gdt_store_event(GDT_ES_ASYNC, service, &gdt->sc_dvr);
|
|
printf("iir%d: %s\n", gdt->sc_hanum, gdt->sc_dvr.event_string);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
gdt_sync_event(struct gdt_softc *gdt, int service,
|
|
u_int8_t index, struct gdt_ccb *gccb)
|
|
{
|
|
union ccb *ccb;
|
|
|
|
GDT_DPRINTF(GDT_D_INTR,
|
|
("gdt_sync_event(%p, %d, %d, %p)\n", gdt,service,index,gccb));
|
|
|
|
ccb = gccb->gc_ccb;
|
|
|
|
if (service == GDT_SCREENSERVICE) {
|
|
u_int32_t msg_len;
|
|
|
|
msg_len = gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_LEN);
|
|
if (msg_len)
|
|
if (!(gccb->gc_scratch[GDT_SCR_MSG_ANSWER] &&
|
|
gccb->gc_scratch[GDT_SCR_MSG_EXT])) {
|
|
gccb->gc_scratch[GDT_SCR_MSG_TEXT + msg_len] = '\0';
|
|
printf("%s",&gccb->gc_scratch[GDT_SCR_MSG_TEXT]);
|
|
}
|
|
|
|
if (gccb->gc_scratch[GDT_SCR_MSG_EXT] &&
|
|
!gccb->gc_scratch[GDT_SCR_MSG_ANSWER]) {
|
|
while (gdt->sc_test_busy(gdt))
|
|
DELAY(1);
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
printf("iir%d: No free command index found\n",
|
|
gdt->sc_hanum);
|
|
return (1);
|
|
}
|
|
gccb->gc_service = service;
|
|
gccb->gc_flags = GDT_GCF_SCREEN;
|
|
gdt->sc_set_sema0(gdt);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_READ);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
|
|
gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
gdt->sc_cmd_off = 0;
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
|
|
sizeof(u_int32_t));
|
|
gdt->sc_cmd_cnt = 0;
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
gdt->sc_release_event(gdt);
|
|
return (0);
|
|
}
|
|
|
|
if (gccb->gc_scratch[GDT_SCR_MSG_ANSWER] &&
|
|
gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN)) {
|
|
/* default answers (getchar() not possible) */
|
|
if (gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) == 1) {
|
|
gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN, 0);
|
|
gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 1);
|
|
gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 0;
|
|
} else {
|
|
gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_ALEN,
|
|
gdt_dec32(gccb->gc_scratch + GDT_SCR_MSG_ALEN) - 2);
|
|
gdt_enc32(gccb->gc_scratch + GDT_SCR_MSG_LEN, 2);
|
|
gccb->gc_scratch[GDT_SCR_MSG_TEXT] = 1;
|
|
gccb->gc_scratch[GDT_SCR_MSG_TEXT + 1] = 0;
|
|
}
|
|
gccb->gc_scratch[GDT_SCR_MSG_EXT] = 0;
|
|
gccb->gc_scratch[GDT_SCR_MSG_ANSWER] = 0;
|
|
while (gdt->sc_test_busy(gdt))
|
|
DELAY(1);
|
|
bzero(gdt->sc_cmd, GDT_CMD_SZ);
|
|
gccb = gdt_get_ccb(gdt);
|
|
if (gccb == NULL) {
|
|
printf("iir%d: No free command index found\n",
|
|
gdt->sc_hanum);
|
|
return (1);
|
|
}
|
|
gccb->gc_service = service;
|
|
gccb->gc_flags = GDT_GCF_SCREEN;
|
|
gdt->sc_set_sema0(gdt);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_COMMANDINDEX,
|
|
gccb->gc_cmd_index);
|
|
gdt_enc16(gdt->sc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
|
|
gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
|
|
gdt_enc32(gdt->sc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
|
|
gdt_ccb_vtop(gdt, gccb) +
|
|
offsetof(struct gdt_ccb, gc_scratch[0]));
|
|
gdt->sc_cmd_off = 0;
|
|
gdt->sc_cmd_len = roundup(GDT_CMD_UNION + GDT_SCREEN_SZ,
|
|
sizeof(u_int32_t));
|
|
gdt->sc_cmd_cnt = 0;
|
|
gdt->sc_copy_cmd(gdt, gccb);
|
|
gdt->sc_release_event(gdt);
|
|
return (0);
|
|
}
|
|
printf("\n");
|
|
return (0);
|
|
} else {
|
|
untimeout(iir_timeout, gccb, ccb->ccb_h.timeout_ch);
|
|
if (gdt->sc_status == GDT_S_BSY) {
|
|
GDT_DPRINTF(GDT_D_DEBUG, ("gdt_sync_event(%p) gccb %p busy\n",
|
|
gdt, gccb));
|
|
TAILQ_INSERT_HEAD(&gdt->sc_ccb_queue, &ccb->ccb_h, sim_links.tqe);
|
|
++gdt_stat.req_queue_act;
|
|
if (gdt_stat.req_queue_act > gdt_stat.req_queue_max)
|
|
gdt_stat.req_queue_max = gdt_stat.req_queue_act;
|
|
return (2);
|
|
}
|
|
|
|
bus_dmamap_sync(gdt->sc_buffer_dmat, gccb->gc_dmamap,
|
|
(ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN ?
|
|
BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE);
|
|
|
|
ccb->csio.resid = 0;
|
|
if (gdt->sc_status == GDT_S_OK) {
|
|
ccb->ccb_h.status = CAM_REQ_CMP;
|
|
} else {
|
|
/* error */
|
|
if (gccb->gc_service == GDT_CACHESERVICE) {
|
|
ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
|
|
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
|
|
bzero(&ccb->csio.sense_data, ccb->csio.sense_len);
|
|
ccb->csio.sense_data.error_code =
|
|
SSD_CURRENT_ERROR | SSD_ERRCODE_VALID;
|
|
ccb->csio.sense_data.flags = SSD_KEY_NOT_READY;
|
|
|
|
gdt->sc_dvr.size = sizeof(gdt->sc_dvr.eu.sync);
|
|
gdt->sc_dvr.eu.sync.ionode = gdt->sc_hanum;
|
|
gdt->sc_dvr.eu.sync.service = service;
|
|
gdt->sc_dvr.eu.sync.status = gdt->sc_status;
|
|
gdt->sc_dvr.eu.sync.info = gdt->sc_info;
|
|
gdt->sc_dvr.eu.sync.hostdrive = ccb->ccb_h.target_id;
|
|
if (gdt->sc_status >= 0x8000)
|
|
gdt_store_event(GDT_ES_SYNC, 0, &gdt->sc_dvr);
|
|
else
|
|
gdt_store_event(GDT_ES_SYNC, service, &gdt->sc_dvr);
|
|
} else {
|
|
/* raw service */
|
|
if (gdt->sc_status != GDT_S_RAW_SCSI || gdt->sc_info >= 0x100) {
|
|
ccb->ccb_h.status = CAM_DEV_NOT_THERE;
|
|
} else {
|
|
ccb->ccb_h.status = CAM_SCSI_STATUS_ERROR|CAM_AUTOSNS_VALID;
|
|
ccb->csio.scsi_status = gdt->sc_info;
|
|
bcopy(gccb->gc_scratch, &ccb->csio.sense_data,
|
|
ccb->csio.sense_len);
|
|
}
|
|
}
|
|
}
|
|
--gdt_stat.io_count_act;
|
|
xpt_done(ccb);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/* Controller event handling functions */
|
|
gdt_evt_str *gdt_store_event(u_int16_t source, u_int16_t idx,
|
|
gdt_evt_data *evt)
|
|
{
|
|
gdt_evt_str *e;
|
|
struct timeval tv;
|
|
|
|
GDT_DPRINTF(GDT_D_MISC, ("gdt_store_event(%d, %d)\n", source, idx));
|
|
if (source == 0) /* no source -> no event */
|
|
return 0;
|
|
|
|
if (ebuffer[elastidx].event_source == source &&
|
|
ebuffer[elastidx].event_idx == idx &&
|
|
((evt->size != 0 && ebuffer[elastidx].event_data.size != 0 &&
|
|
!memcmp((char *)&ebuffer[elastidx].event_data.eu,
|
|
(char *)&evt->eu, evt->size)) ||
|
|
(evt->size == 0 && ebuffer[elastidx].event_data.size == 0 &&
|
|
!strcmp((char *)&ebuffer[elastidx].event_data.event_string,
|
|
(char *)&evt->event_string)))) {
|
|
e = &ebuffer[elastidx];
|
|
getmicrotime(&tv);
|
|
e->last_stamp = tv.tv_sec;
|
|
++e->same_count;
|
|
} else {
|
|
if (ebuffer[elastidx].event_source != 0) { /* entry not free ? */
|
|
++elastidx;
|
|
if (elastidx == GDT_MAX_EVENTS)
|
|
elastidx = 0;
|
|
if (elastidx == eoldidx) { /* reached mark ? */
|
|
++eoldidx;
|
|
if (eoldidx == GDT_MAX_EVENTS)
|
|
eoldidx = 0;
|
|
}
|
|
}
|
|
e = &ebuffer[elastidx];
|
|
e->event_source = source;
|
|
e->event_idx = idx;
|
|
getmicrotime(&tv);
|
|
e->first_stamp = e->last_stamp = tv.tv_sec;
|
|
e->same_count = 1;
|
|
e->event_data = *evt;
|
|
e->application = 0;
|
|
}
|
|
return e;
|
|
}
|
|
|
|
int gdt_read_event(int handle, gdt_evt_str *estr)
|
|
{
|
|
gdt_evt_str *e;
|
|
int eindex, lock;
|
|
|
|
GDT_DPRINTF(GDT_D_MISC, ("gdt_read_event(%d)\n", handle));
|
|
lock = splcam();
|
|
if (handle == -1)
|
|
eindex = eoldidx;
|
|
else
|
|
eindex = handle;
|
|
estr->event_source = 0;
|
|
|
|
if (eindex >= GDT_MAX_EVENTS) {
|
|
splx(lock);
|
|
return eindex;
|
|
}
|
|
e = &ebuffer[eindex];
|
|
if (e->event_source != 0) {
|
|
if (eindex != elastidx) {
|
|
if (++eindex == GDT_MAX_EVENTS)
|
|
eindex = 0;
|
|
} else {
|
|
eindex = -1;
|
|
}
|
|
memcpy(estr, e, sizeof(gdt_evt_str));
|
|
}
|
|
splx(lock);
|
|
return eindex;
|
|
}
|
|
|
|
void gdt_readapp_event(u_int8_t application, gdt_evt_str *estr)
|
|
{
|
|
gdt_evt_str *e;
|
|
int found = FALSE;
|
|
int eindex, lock;
|
|
|
|
GDT_DPRINTF(GDT_D_MISC, ("gdt_readapp_event(%d)\n", application));
|
|
lock = splcam();
|
|
eindex = eoldidx;
|
|
for (;;) {
|
|
e = &ebuffer[eindex];
|
|
if (e->event_source == 0)
|
|
break;
|
|
if ((e->application & application) == 0) {
|
|
e->application |= application;
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
if (eindex == elastidx)
|
|
break;
|
|
if (++eindex == GDT_MAX_EVENTS)
|
|
eindex = 0;
|
|
}
|
|
if (found)
|
|
memcpy(estr, e, sizeof(gdt_evt_str));
|
|
else
|
|
estr->event_source = 0;
|
|
splx(lock);
|
|
}
|
|
|
|
void gdt_clear_events()
|
|
{
|
|
GDT_DPRINTF(GDT_D_MISC, ("gdt_clear_events\n"));
|
|
|
|
eoldidx = elastidx = 0;
|
|
ebuffer[0].event_source = 0;
|
|
}
|