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freebsd-skq/sys/dev/iir/iir.c
nyan 0fce92f5c4 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386 
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00

2009 lines
69 KiB
C
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/*-
* Copyright (c) 2000-04 ICP vortex GmbH
* Copyright (c) 2002-04 Intel Corporation
* Copyright (c) 2003-04 Adaptec Inc.
* All Rights Reserved
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification, immediately at the beginning of the file.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* iir.c: SCSI dependant code for the Intel Integrated RAID Controller driver
*
* Written by: Achim Leubner <achim_leubner@adaptec.com>
* Fixes/Additions: Boji Tony Kannanthanam <boji.t.kannanthanam@intel.com>
*
* credits: Niklas Hallqvist; OpenBSD driver for the ICP Controllers.
* Mike Smith; Some driver source code.
* FreeBSD.ORG; Great O/S to work on and for.
*
* $Id: iir.c 1.5 2004/03/30 10:17:53 achim Exp $"
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#define _IIR_C_
/* #include "opt_iir.h" */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/endian.h>
#include <sys/eventhandler.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/clock.h>
#include <machine/stdarg.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <dev/iir/iir.h>
struct gdt_softc *gdt_wait_gdt;
int gdt_wait_index;
#ifdef GDT_DEBUG
int gdt_debug = GDT_DEBUG;
#ifdef __SERIAL__
#define MAX_SERBUF 160
static void ser_init(void);
static void ser_puts(char *str);
static void ser_putc(int c);
static char strbuf[MAX_SERBUF+1];
#ifdef __COM2__
#define COM_BASE 0x2f8
#else
#define COM_BASE 0x3f8
#endif
static void ser_init()
{
unsigned port=COM_BASE;
outb(port+3, 0x80);
outb(port+1, 0);
/* 19200 Baud, if 9600: outb(12,port) */
outb(port, 6);
outb(port+3, 3);
outb(port+1, 0);
}
static void ser_puts(char *str)
{
char *ptr;
ser_init();
for (ptr=str;*ptr;++ptr)
ser_putc((int)(*ptr));
}
static void ser_putc(int c)
{
unsigned port=COM_BASE;
while ((inb(port+5) & 0x20)==0);
outb(port, c);
if (c==0x0a)
{
while ((inb(port+5) & 0x20)==0);
outb(port, 0x0d);
}
}
int ser_printf(const char *fmt, ...)
{
va_list args;
int i;
va_start(args,fmt);
i = vsprintf(strbuf,fmt,args);
ser_puts(strbuf);
va_end(args);
return i;
}
#endif
#endif
/* The linked list of softc structures */
struct gdt_softc_list gdt_softcs = TAILQ_HEAD_INITIALIZER(gdt_softcs);
/* controller cnt. */
int gdt_cnt = 0;
/* event buffer */
static gdt_evt_str ebuffer[GDT_MAX_EVENTS];
static int elastidx, eoldidx;
/* statistics */
gdt_statist_t gdt_stat;
/* Definitions for our use of the SIM private CCB area */
#define ccb_sim_ptr spriv_ptr0
#define ccb_priority spriv_field1
static void iir_action(struct cam_sim *sim, union ccb *ccb);
static void iir_poll(struct cam_sim *sim);
static void iir_shutdown(void *arg, int howto);
static void iir_timeout(void *arg);
static void iir_watchdog(void *arg);
static void gdt_eval_mapping(u_int32_t size, int *cyls, int *heads,
int *secs);
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);
static int gdt_wait(struct gdt_softc *gdt, struct gdt_ccb *ccb,
int timeout);
static struct gdt_ccb *gdt_get_ccb(struct gdt_softc *gdt);
static u_int32_t gdt_ccb_vtop(struct gdt_softc *gdt,
struct gdt_ccb *gccb);
static int gdt_sync_event(struct gdt_softc *gdt, int service,
u_int8_t index, struct gdt_ccb *gccb);
static int gdt_async_event(struct gdt_softc *gdt, int service);
static struct gdt_ccb *gdt_raw_cmd(struct gdt_softc *gdt,
union ccb *ccb, int *lock);
static struct gdt_ccb *gdt_cache_cmd(struct gdt_softc *gdt,
union ccb *ccb, int *lock);
static struct gdt_ccb *gdt_ioctl_cmd(struct gdt_softc *gdt,
gdt_ucmd_t *ucmd, int *lock);
static void gdt_internal_cache_cmd(struct gdt_softc *gdt,union ccb *ccb);
static void gdtmapmem(void *arg, bus_dma_segment_t *dm_segs,
int nseg, int error);
static void gdtexecuteccb(void *arg, bus_dma_segment_t *dm_segs,
int nseg, int error);
int
iir_init(struct gdt_softc *gdt)
{
u_int16_t cdev_cnt;
int i, id, drv_cyls, drv_hds, drv_secs;
struct gdt_ccb *gccb;
GDT_DPRINTF(GDT_D_DEBUG, ("iir_init()\n"));
gdt->sc_state = GDT_POLLING;
gdt_clear_events();
bzero(&gdt_stat, sizeof(gdt_statist_t));
SLIST_INIT(&gdt->sc_free_gccb);
SLIST_INIT(&gdt->sc_pending_gccb);
TAILQ_INIT(&gdt->sc_ccb_queue);
TAILQ_INIT(&gdt->sc_ucmd_queue);
TAILQ_INSERT_TAIL(&gdt_softcs, gdt, links);
/* DMA tag for mapping buffers into device visible space. */
if (bus_dma_tag_create(gdt->sc_parent_dmat, /*alignment*/1, /*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/MAXBSIZE, /*nsegments*/GDT_MAXSG,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/BUS_DMA_ALLOCNOW,
/*lockfunc*/busdma_lock_mutex, /*lockarg*/&Giant,
&gdt->sc_buffer_dmat) != 0) {
printf("iir%d: bus_dma_tag_create(...,gdt->sc_buffer_dmat) failed\n",
gdt->sc_hanum);
return (1);
}
gdt->sc_init_level++;
/* DMA tag for our ccb structures */
if (bus_dma_tag_create(gdt->sc_parent_dmat,
/*alignment*/1,
/*boundary*/0,
/*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/BUS_SPACE_MAXADDR,
/*filter*/NULL,
/*filterarg*/NULL,
GDT_MAXCMDS * sizeof(struct gdt_ccb), /* maxsize */
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, /*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant, &gdt->sc_gccb_dmat) != 0) {
printf("iir%d: bus_dma_tag_create(...,gdt->sc_gccb_dmat) failed\n",
gdt->sc_hanum);
return (1);
}
gdt->sc_init_level++;
/* Allocation for our ccbs */
if (bus_dmamem_alloc(gdt->sc_gccb_dmat, (void **)&gdt->sc_gccbs,
BUS_DMA_NOWAIT, &gdt->sc_gccb_dmamap) != 0) {
printf("iir%d: bus_dmamem_alloc(...,&gdt->sc_gccbs,...) failed\n",
gdt->sc_hanum);
return (1);
}
gdt->sc_init_level++;
/* And permanently map them */
bus_dmamap_load(gdt->sc_gccb_dmat, gdt->sc_gccb_dmamap,
gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb),
gdtmapmem, &gdt->sc_gccb_busbase, /*flags*/0);
gdt->sc_init_level++;
/* Clear them out. */
bzero(gdt->sc_gccbs, GDT_MAXCMDS * sizeof(struct gdt_ccb));
/* Initialize the ccbs */
for (i = GDT_MAXCMDS-1; i >= 0; i--) {
gdt->sc_gccbs[i].gc_cmd_index = i + 2;
gdt->sc_gccbs[i].gc_flags = GDT_GCF_UNUSED;
gdt->sc_gccbs[i].gc_map_flag = FALSE;
if (bus_dmamap_create(gdt->sc_buffer_dmat, /*flags*/0,
&gdt->sc_gccbs[i].gc_dmamap) != 0)
return(1);
gdt->sc_gccbs[i].gc_map_flag = TRUE;
SLIST_INSERT_HEAD(&gdt->sc_free_gccb, &gdt->sc_gccbs[i], sle);
}
gdt->sc_init_level++;
/* create the control device */
gdt->sc_dev = gdt_make_dev(gdt->sc_hanum);
/* allocate ccb for gdt_internal_cmd() */
gccb = gdt_get_ccb(gdt);
if (gccb == NULL) {
printf("iir%d: No free command index found\n",
gdt->sc_hanum);
return (1);
}
if (!gdt_internal_cmd(gdt, gccb, GDT_SCREENSERVICE, GDT_INIT,
0, 0, 0)) {
printf("iir%d: Screen service initialization error %d\n",
gdt->sc_hanum, gdt->sc_status);
gdt_free_ccb(gdt, gccb);
return (1);
}
gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_UNFREEZE_IO,
0, 0, 0);
if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_INIT,
GDT_LINUX_OS, 0, 0)) {
printf("iir%d: Cache service initialization error %d\n",
gdt->sc_hanum, gdt->sc_status);
gdt_free_ccb(gdt, gccb);
return (1);
}
cdev_cnt = (u_int16_t)gdt->sc_info;
gdt->sc_fw_vers = gdt->sc_service;
/* Detect number of buses */
gdt_enc32(gccb->gc_scratch + GDT_IOC_VERSION, GDT_IOC_NEWEST);
gccb->gc_scratch[GDT_IOC_LIST_ENTRIES] = GDT_MAXBUS;
gccb->gc_scratch[GDT_IOC_FIRST_CHAN] = 0;
gccb->gc_scratch[GDT_IOC_LAST_CHAN] = GDT_MAXBUS - 1;
gdt_enc32(gccb->gc_scratch + GDT_IOC_LIST_OFFSET, GDT_IOC_HDR_SZ);
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
GDT_IOCHAN_RAW_DESC, GDT_INVALID_CHANNEL,
GDT_IOC_HDR_SZ + GDT_MAXBUS * GDT_RAWIOC_SZ)) {
gdt->sc_bus_cnt = gccb->gc_scratch[GDT_IOC_CHAN_COUNT];
for (i = 0; i < gdt->sc_bus_cnt; i++) {
id = gccb->gc_scratch[GDT_IOC_HDR_SZ +
i * GDT_RAWIOC_SZ + GDT_RAWIOC_PROC_ID];
gdt->sc_bus_id[i] = id < GDT_MAXID_FC ? id : 0xff;
}
} else {
/* New method failed, use fallback. */
for (i = 0; i < GDT_MAXBUS; i++) {
gdt_enc32(gccb->gc_scratch + GDT_GETCH_CHANNEL_NO, i);
if (!gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
GDT_SCSI_CHAN_CNT | GDT_L_CTRL_PATTERN,
GDT_IO_CHANNEL | GDT_INVALID_CHANNEL,
GDT_GETCH_SZ)) {
if (i == 0) {
printf("iir%d: Cannot get channel count, "
"error %d\n", gdt->sc_hanum, gdt->sc_status);
gdt_free_ccb(gdt, gccb);
return (1);
}
break;
}
gdt->sc_bus_id[i] =
(gccb->gc_scratch[GDT_GETCH_SIOP_ID] < GDT_MAXID_FC) ?
gccb->gc_scratch[GDT_GETCH_SIOP_ID] : 0xff;
}
gdt->sc_bus_cnt = i;
}
/* add one "virtual" channel for the host drives */
gdt->sc_virt_bus = gdt->sc_bus_cnt;
gdt->sc_bus_cnt++;
if (!gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_INIT,
0, 0, 0)) {
printf("iir%d: Raw service initialization error %d\n",
gdt->sc_hanum, gdt->sc_status);
gdt_free_ccb(gdt, gccb);
return (1);
}
/* Set/get features raw service (scatter/gather) */
gdt->sc_raw_feat = 0;
if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_SET_FEAT,
GDT_SCATTER_GATHER, 0, 0)) {
if (gdt_internal_cmd(gdt, gccb, GDT_SCSIRAWSERVICE, GDT_GET_FEAT,
0, 0, 0)) {
gdt->sc_raw_feat = gdt->sc_info;
if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
panic("iir%d: Scatter/Gather Raw Service "
"required but not supported!\n", gdt->sc_hanum);
gdt_free_ccb(gdt, gccb);
return (1);
}
}
}
/* Set/get features cache service (scatter/gather) */
gdt->sc_cache_feat = 0;
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_SET_FEAT,
0, GDT_SCATTER_GATHER, 0)) {
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_GET_FEAT,
0, 0, 0)) {
gdt->sc_cache_feat = gdt->sc_info;
if (!(gdt->sc_info & GDT_SCATTER_GATHER)) {
panic("iir%d: Scatter/Gather Cache Service "
"required but not supported!\n", gdt->sc_hanum);
gdt_free_ccb(gdt, gccb);
return (1);
}
}
}
/* OEM */
gdt_enc32(gccb->gc_scratch + GDT_OEM_VERSION, 0x01);
gdt_enc32(gccb->gc_scratch + GDT_OEM_BUFSIZE, sizeof(gdt_oem_record_t));
if (gdt_internal_cmd(gdt, gccb, GDT_CACHESERVICE, GDT_IOCTL,
GDT_OEM_STR_RECORD, GDT_INVALID_CHANNEL,
sizeof(gdt_oem_str_record_t))) {
strncpy(gdt->oem_name, ((gdt_oem_str_record_t *)
gccb->gc_scratch)->text.scsi_host_drive_inquiry_vendor_id, 7);
gdt->oem_name[7]='\0';
} else {
/* Old method, based on PCI ID */
if (gdt->sc_vendor == INTEL_VENDOR_ID)
strcpy(gdt->oem_name,"Intel ");
else
strcpy(gdt->oem_name,"ICP ");
}
/* Scan for cache devices */
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 {
panic("iir: CAM_DATA_PHYS not supported");
}
} 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 {
panic("iir: CAM_DATA_PHYS not supported");
}
} 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;
}
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