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freebsd-dev/sys/dev/iir/iir.c
Kenneth D. Merry 1cc052e80f Add descriptor sense support to CAM, and honor sense residuals properly in 
CAM.

Desriptor sense is a new sense data format that originated in SPC-3.  Among
other things, it allows for an 8-byte info field, which is necessary to
pass back block numbers larger than 4 bytes.

This change adds a number of new functions to scsi_all.c (and therefore
libcam) that abstract out most access to sense data.

This includes a bump of CAM_VERSION, because the CCB ABI has changed.
Userland programs that use the CAM pass(4) driver will need to be
recompiled.

camcontrol.c:	Change uses of scsi_extract_sense() to use
		scsi_extract_sense_len().

		Use scsi_get_sks() instead of accessing sense key specific
		data directly.

scsi_modes:	Update the control mode page to the latest version (SPC-4).

scsi_cmds.c,
scsi_target.c:	Change references to struct scsi_sense_data to struct
		scsi_sense_data_fixed.  This should be changed to allow the
		user to specify fixed or descriptor sense, and then use
		scsi_set_sense_data() to build the sense data.

ps3cdrom.c:	Use scsi_set_sense_data() instead of setting sense data
		manually.

cam_periph.c:	Use scsi_extract_sense_len() instead of using
		scsi_extract_sense() or accessing sense data directly.

cam_ccb.h:	Bump the CAM_VERSION from 0x15 to 0x16.  The change of
		struct scsi_sense_data from 32 to 252 bytes changes the
		size of struct ccb_scsiio, but not the size of union ccb.
		So the version must be bumped to prevent structure
		mis-matches.

scsi_all.h:	Lots of updated SCSI sense data and other structures.

		Add function prototypes for the new sense data functions.

		Take out the inline implementation of scsi_extract_sense().
		It is now too large to put in a header file.

		Add macros to calculate whether fields are present and
		filled in fixed and descriptor sense data

scsi_all.c:	In scsi_op_desc(), allow the user to pass in NULL inquiry
		data, and we'll assume a direct access device in that case.

		Changed the SCSI RESERVED sense key name and description
		to COMPLETED, as it is now defined in the spec.

		Change the error recovery action for a number of read errors
		to prevent lots of retries when the drive has said that the
		block isn't accessible.  This speeds up reconstruction of
		the block by any RAID software running on top of the drive
		(e.g. ZFS).

		In scsi_sense_desc(), allow for invalid sense key numbers.
		This allows calling this routine without checking the input
		values first.

		Change scsi_error_action() to use scsi_extract_sense_len(),
		and handle things when invalid asc/ascq values are
		encountered.

		Add a new routine, scsi_desc_iterate(), that will call the
		supplied function for every descriptor in descriptor format
		sense data.

		Add scsi_set_sense_data(), and scsi_set_sense_data_va(),
		which build descriptor and fixed format sense data.  They
		currently default to fixed format sense data.

		Add a number of scsi_get_*() functions, which get different
		types of sense data fields from either fixed or descriptor
		format sense data, if the data is present.

		Add a number of scsi_*_sbuf() functions, which print
		formatted versions of various sense data fields.  These
		functions work for either fixed or descriptor sense.

		Add a number of scsi_sense_*_sbuf() functions, which have a
		standard calling interface and print the indicated field.
		These functions take descriptors only.

		Add scsi_sense_desc_sbuf(), which will print a formatted
		version of the given sense descriptor.

		Pull out a majority of the scsi_sense_sbuf() function and
		put it into scsi_sense_only_sbuf().  This allows callers
		that don't use struct ccb_scsiio to easily utilize the
		printing routines.  Revamp that function to handle
		descriptor sense and use the new sense fetching and
		printing routines.

		Move scsi_extract_sense() into scsi_all.c, and implement it
		in terms of the new function, scsi_extract_sense_len().
		The _len() version takes a length (which should be the
		sense length - residual) and can indicate which fields are
		present and valid in the sense data.

		Add a couple of new scsi_get_*() routines to get the sense
		key, asc, and ascq only.

mly.c:		Rename struct scsi_sense_data to struct
		scsi_sense_data_fixed.

sbp_targ.c:	Use the new sense fetching routines to get sense data
		instead of accessing it directly.

sbp.c:		Change the firewire/SCSI sense data transformation code to
		use struct scsi_sense_data_fixed instead of struct
		scsi_sense_data.  This should be changed later to use
		scsi_set_sense_data().

ciss.c:		Calculate the sense residual properly.  Use
		scsi_get_sense_key() to fetch the sense key.

mps_sas.c,
mpt_cam.c:	Set the sense residual properly.

iir.c:		Use scsi_set_sense_data() instead of building sense data by
		hand.

iscsi_subr.c:	Use scsi_extract_sense_len() instead of grabbing sense data
		directly.

umass.c:	Use scsi_set_sense_data() to build sense data.

		Grab the sense key using scsi_get_sense_key().

		Calculate the sense residual properly.

isp_freebsd.h:	Use scsi_get_*() routines to grab asc, ascq, and sense key
		values.

		Calculate and set the sense residual.

MFC after:	3 days
Sponsored by:	Spectra Logic Corporation
2011-10-03 20:32:55 +00:00

2000 lines
70 KiB
C
Raw Blame History

/*-
* 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/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 <dev/iir/iir.h>
MALLOC_DEFINE(M_GDTBUF, "iirbuf", "iir driver buffer");
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 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 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 * GDT_SCRATCH_SZ, /* maxsize */
/*nsegments*/1,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT,
/*flags*/0, /*lockfunc*/busdma_lock_mutex,
/*lockarg*/&Giant, &gdt->sc_gcscratch_dmat) != 0) {
printf("iir%d: bus_dma_tag_create(...,gdt->sc_gcscratch_dmat) failed\n",
gdt->sc_hanum);
return (1);
}
gdt->sc_init_level++;
/* Allocation for our ccb scratch area */
if (bus_dmamem_alloc(gdt->sc_gcscratch_dmat, (void **)&gdt->sc_gcscratch,
BUS_DMA_NOWAIT, &gdt->sc_gcscratch_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_gcscratch_dmat, gdt->sc_gcscratch_dmamap,
gdt->sc_gcscratch, GDT_MAXCMDS * GDT_SCRATCH_SZ,
gdtmapmem, &gdt->sc_gcscratch_busbase, /*flags*/0);
gdt->sc_init_level++;
/* Clear them out. */
bzero(gdt->sc_gcscratch, GDT_MAXCMDS * GDT_SCRATCH_SZ);
/* Initialize the ccbs */
gdt->sc_gccbs = malloc(sizeof(struct gdt_ccb) * GDT_MAXCMDS, M_GDTBUF,
M_NOWAIT | M_ZERO);
if (gdt->sc_gccbs == NULL) {
printf("iir%d: no memory for gccbs.\n", gdt->sc_hanum);
return (1);
}
for (i = GDT_MAXCMDS-1; i >= 0; i--) {
gccb = &gdt->sc_gccbs[i];
gccb->gc_cmd_index = i + 2;
gccb->gc_flags = GDT_GCF_UNUSED;
gccb->gc_map_flag = FALSE;
if (bus_dmamap_create(gdt->sc_buffer_dmat, /*flags*/0,
&gccb->gc_dmamap) != 0)
return(1);
gccb->gc_map_flag = TRUE;
gccb->gc_scratch = &gdt->sc_gcscratch[GDT_SCRATCH_SZ * i];
gccb->gc_scratch_busbase = gdt->sc_gcscratch_busbase + GDT_SCRATCH_SZ * i;
SLIST_INSERT_HEAD(&gdt->sc_free_gccb, gccb, 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);
}
bzero(gccb->gc_cmd, GDT_CMD_SZ);
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_gcscratch_dmat, gdt->sc_gcscratch_dmamap);
free(gdt->sc_gccbs, M_GDTBUF);
case 4:
bus_dmamem_free(gdt->sc_gcscratch_dmat, gdt->sc_gcscratch, gdt->sc_gcscratch_dmamap);
case 3:
bus_dma_tag_destroy(gdt->sc_gcscratch_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.
* XXX Throttle this down since the card has problems under load.
*/
devq = cam_simq_alloc(32);
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, &Giant,
/*untagged*/1,
/*tagged*/GDT_MAXCMDS, devq);
if (xpt_bus_register(gdt->sims[i], gdt->sc_devnode, 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(gccb->gc_cmd, GDT_CMD_SZ);
for (retries = GDT_RETRIES; ; ) {
gccb->gc_service = service;
gccb->gc_flags = GDT_GCF_INTERNAL;
gdt_enc32(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE, opcode);
switch (service) {
case GDT_CACHESERVICE:
if (opcode == GDT_IOCTL) {
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION +
GDT_IOCTL_SUBFUNC, arg1);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION +
GDT_IOCTL_CHANNEL, arg2);
gdt_enc16(gccb->gc_cmd + GDT_CMD_UNION +
GDT_IOCTL_PARAM_SIZE, (u_int16_t)arg3);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
gccb->gc_scratch_busbase);
} else {
gdt_enc16(gccb->gc_cmd + GDT_CMD_UNION +
GDT_CACHE_DEVICENO, (u_int16_t)arg1);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION +
GDT_CACHE_BLOCKNO, arg2);
}
break;
case GDT_SCSIRAWSERVICE:
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION +
GDT_RAW_DIRECTION, arg1);
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
(u_int8_t)arg2;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
(u_int8_t)arg3;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
(u_int8_t)(arg3 >> 8);
}
gdt->sc_set_sema0(gdt);
gccb->gc_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);
}
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);
}
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);
}
bzero(gccb->gc_cmd, GDT_CMD_SZ);
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(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
gdt_enc32(gccb->gc_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(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
ccb->csio.dxfer_len);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
ccb->csio.cdb_len);
bcopy(ccb->csio.cdb_io.cdb_bytes, gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
ccb->csio.cdb_len);
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
ccb->ccb_h.target_id;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
ccb->ccb_h.target_lun;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
cam_sim_bus(sim);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
sizeof(struct scsi_sense_data));
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
gccb->gc_scratch_busbase);
/*
* 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_ccb->ccb_h.status |= 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);
}
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);
}
bzero(gccb->gc_cmd, GDT_CMD_SZ);
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(gccb->gc_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(gccb->gc_cmd + GDT_CMD_OPCODE, opcode);
gdt_enc16(gccb->gc_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(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
blockno);
gdt_enc32(gccb->gc_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_ccb->ccb_h.status |= 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));
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);
}
bzero(gccb->gc_cmd, GDT_CMD_SZ);
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) {
gccb->gc_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 {
gccb->gc_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 {
gccb->gc_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 + gccb->gc_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(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE,
ucmd->OpCode);
if (ucmd->service == GDT_CACHESERVICE) {
if (ucmd->OpCode == GDT_IOCTL) {
/* IOCTL */
gdt_enc16(gccb->gc_cmd + GDT_CMD_UNION + GDT_IOCTL_PARAM_SIZE,
ucmd->u.ioctl.param_size);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_IOCTL_SUBFUNC,
ucmd->u.ioctl.subfunc);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_IOCTL_CHANNEL,
ucmd->u.ioctl.channel);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_IOCTL_P_PARAM,
gccb->gc_scratch_busbase);
} else {
/* cache service command */
gdt_enc16(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_DEVICENO,
ucmd->u.cache.DeviceNo);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKNO,
ucmd->u.cache.BlockNo);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_BLOCKCNT,
ucmd->u.cache.BlockCnt);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
0xffffffffUL);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
1);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
GDT_SG_PTR, gccb->gc_scratch_busbase);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
GDT_SG_LEN, ucmd->u.cache.BlockCnt * GDT_SECTOR_SIZE);
}
} else {
/* raw service command */
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_DIRECTION,
ucmd->u.raw.direction);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
0xffffffffUL);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SDLEN,
ucmd->u.raw.sdlen);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_CLEN,
ucmd->u.raw.clen);
bcopy(ucmd->u.raw.cmd, gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_CMD,
12);
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_TARGET] =
ucmd->u.raw.target;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_LUN] =
ucmd->u.raw.lun;
gccb->gc_cmd[GDT_CMD_UNION + GDT_RAW_BUS] =
ucmd->u.raw.bus;
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_LEN,
ucmd->u.raw.sense_len);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SENSE_DATA,
gccb->gc_scratch_busbase + ucmd->u.raw.sdlen);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
1);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
GDT_SG_PTR, gccb->gc_scratch_busbase);
gdt_enc32(gccb->gc_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;
size_t copylen = MIN(sizeof(inq), ccb->csio.dxfer_len);
bzero(&inq, sizeof(inq));
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;
strncpy(inq.vendor, gdt->oem_name, sizeof(inq.vendor));
snprintf(inq.product, sizeof(inq.product),
"Host Drive #%02d", t);
strncpy(inq.revision, " ", sizeof(inq.revision));
bcopy(&inq, ccb->csio.data_ptr, copylen );
if( ccb->csio.dxfer_len > copylen )
bzero( ccb->csio.data_ptr+copylen,
ccb->csio.dxfer_len - copylen );
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;
size_t copylen = MIN(sizeof(mpd), ccb->csio.dxfer_len);
u_int8_t page;
/*mpd = (struct mpd_data *)ccb->csio.data_ptr;*/
bzero(&mpd, sizeof(mpd));
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);
bcopy(&mpd, ccb->csio.data_ptr, copylen );
if( ccb->csio.dxfer_len > copylen )
bzero( ccb->csio.data_ptr+copylen,
ccb->csio.dxfer_len - copylen );
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;
size_t copylen = MIN(sizeof(rcd), ccb->csio.dxfer_len);
/*rcd = (struct scsi_read_capacity_data *)ccb->csio.data_ptr;*/
bzero(&rcd, sizeof(rcd));
scsi_ulto4b(gdt->sc_hdr[t].hd_size - 1, rcd.addr);
scsi_ulto4b(GDT_SECTOR_SIZE, rcd.length);
bcopy(&rcd, ccb->csio.data_ptr, copylen );
if( ccb->csio.dxfer_len > copylen )
bzero( ccb->csio.data_ptr+copylen,
ccb->csio.dxfer_len - copylen );
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(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_LST +
i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
dm_segs++;
}
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_SG_CANZ,
nseg);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_CACHE_DESTADDR,
0xffffffffUL);
gccb->gc_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(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
i * GDT_SG_SZ + GDT_SG_PTR, dm_segs->ds_addr);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SG_LST +
i * GDT_SG_SZ + GDT_SG_LEN, dm_segs->ds_len);
dm_segs++;
}
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SG_RANZ,
nseg);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_RAW_SDATA,
0xffffffffUL);
gccb->gc_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 = &ccb->cts;
struct ccb_trans_settings_scsi *scsi = &cts->proto_specific.scsi;
struct ccb_trans_settings_spi *spi = &cts->xport_specific.spi;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
if (cts->type == CTS_TYPE_USER_SETTINGS) {
spi->flags = CTS_SPI_FLAGS_DISC_ENB;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
spi->bus_width = MSG_EXT_WDTR_BUS_16_BIT;
spi->sync_period = 25; /* 10MHz */
if (spi->sync_period != 0)
spi->sync_offset = 15;
spi->valid = CTS_SPI_VALID_SYNC_RATE
| CTS_SPI_VALID_SYNC_OFFSET
| CTS_SPI_VALID_BUS_WIDTH
| CTS_SPI_VALID_DISC;
scsi->valid = CTS_SCSI_VALID_TQ;
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->transport = XPORT_SPI;
cpi->transport_version = 2;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
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", gccb));
}
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_GDTBUF, 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 == 0x00) {
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);
gccb = gdt_get_ccb(gdt);
if (gccb == NULL) {
printf("iir%d: No free command index found\n",
gdt->sc_hanum);
return (1);
}
bzero(gccb->gc_cmd, GDT_CMD_SZ);
gccb->gc_service = service;
gccb->gc_flags = GDT_GCF_SCREEN;
gdt_enc32(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE, GDT_READ);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
GDT_MSG_INV_HANDLE);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
gccb->gc_scratch_busbase);
gdt->sc_set_sema0(gdt);
gdt->sc_cmd_off = 0;
gccb->gc_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(gccb->gc_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_enc32(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE, GDT_READ);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
gccb->gc_scratch_busbase);
gdt->sc_set_sema0(gdt);
gdt->sc_cmd_off = 0;
gccb->gc_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(gccb->gc_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_enc32(gccb->gc_cmd + GDT_CMD_COMMANDINDEX,
gccb->gc_cmd_index);
gdt_enc16(gccb->gc_cmd + GDT_CMD_OPCODE, GDT_WRITE);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_HANDLE,
gccb->gc_scratch[GDT_SCR_MSG_HANDLE]);
gdt_enc32(gccb->gc_cmd + GDT_CMD_UNION + GDT_SCREEN_MSG_ADDR,
gccb->gc_scratch_busbase);
gdt->sc_set_sema0(gdt);
gdt->sc_cmd_off = 0;
gccb->gc_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);
bus_dmamap_unload(gdt->sc_buffer_dmat, gccb->gc_dmamap);
ccb->csio.resid = 0;
if (gdt->sc_status == GDT_S_OK) {
ccb->ccb_h.status |= CAM_REQ_CMP;
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
} else {
/* error */
if (gccb->gc_service == GDT_CACHESERVICE) {
struct scsi_sense_data *sense;
ccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
ccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
bzero(&ccb->csio.sense_data, ccb->csio.sense_len);
sense = &ccb->csio.sense_data;
scsi_set_sense_data(sense,
/*sense_format*/ SSD_TYPE_NONE,
/*current_error*/ 1,
/*sense_key*/ SSD_KEY_NOT_READY,
/*asc*/ 0x4,
/*ascq*/ 0x01,
SSD_ELEM_NONE);
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->ccb_h.status &= ~CAM_SIM_QUEUED;
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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