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freebsd-dev/sys/dev/isp/isp_sbus.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1997-2006 by Matthew Jacob
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. 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.
*/
/*
* SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
* FreeBSD Version.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/linker.h>
#include <sys/firmware.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/resource.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/openfirm.h>
#include <machine/bus.h>
#include <machine/ofw_machdep.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <sparc64/sbus/sbusvar.h>
#include <dev/isp/isp_freebsd.h>
static uint32_t isp_sbus_rd_reg(ispsoftc_t *, int);
static void isp_sbus_wr_reg(ispsoftc_t *, int, uint32_t);
static void isp_sbus_run_isr(ispsoftc_t *);
static int isp_sbus_mbxdma(ispsoftc_t *);
static void isp_sbus_mbxdmafree(ispsoftc_t *);
static int isp_sbus_dmasetup(ispsoftc_t *, XS_T *, void *);
static void isp_sbus_dumpregs(ispsoftc_t *, const char *);
static struct ispmdvec mdvec = {
isp_sbus_run_isr,
isp_sbus_rd_reg,
isp_sbus_wr_reg,
isp_sbus_mbxdma,
isp_sbus_dmasetup,
isp_common_dmateardown,
NULL,
isp_sbus_dumpregs,
NULL,
BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
};
static int isp_sbus_probe (device_t);
static int isp_sbus_attach (device_t);
static int isp_sbus_detach (device_t);
#define ISP_SBD(isp) ((struct isp_sbussoftc *)isp)->sbus_dev
struct isp_sbussoftc {
ispsoftc_t sbus_isp;
device_t sbus_dev;
struct resource * regs;
void * irq;
int iqd;
int rgd;
void * ih;
int16_t sbus_poff[_NREG_BLKS];
sdparam sbus_param;
struct isp_spi sbus_spi;
struct ispmdvec sbus_mdvec;
};
static device_method_t isp_sbus_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, isp_sbus_probe),
DEVMETHOD(device_attach, isp_sbus_attach),
DEVMETHOD(device_detach, isp_sbus_detach),
{ 0, 0 }
};
static driver_t isp_sbus_driver = {
"isp", isp_sbus_methods, sizeof (struct isp_sbussoftc)
};
static devclass_t isp_devclass;
DRIVER_MODULE(isp, sbus, isp_sbus_driver, isp_devclass, 0, 0);
MODULE_DEPEND(isp, cam, 1, 1, 1);
MODULE_DEPEND(isp, firmware, 1, 1, 1);
static int
isp_sbus_probe(device_t dev)
{
int found = 0;
const char *name = ofw_bus_get_name(dev);
if (strcmp(name, "SUNW,isp") == 0 ||
strcmp(name, "QLGC,isp") == 0 ||
strcmp(name, "ptisp") == 0 ||
strcmp(name, "PTI,ptisp") == 0) {
found++;
}
if (!found)
return (ENXIO);
if (isp_announced == 0 && bootverbose) {
printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
"Core Version %d.%d\n",
ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
isp_announced++;
}
return (0);
}
static int
isp_sbus_attach(device_t dev)
{
struct isp_sbussoftc *sbs = device_get_softc(dev);
ispsoftc_t *isp = &sbs->sbus_isp;
int tval, isp_debug, role, ispburst, default_id;
sbs->sbus_dev = dev;
sbs->sbus_mdvec = mdvec;
isp->isp_dev = dev;
mtx_init(&isp->isp_lock, "isp", NULL, MTX_DEF);
role = 0;
if (resource_int_value(device_get_name(dev), device_get_unit(dev),
"role", &role) == 0 &&
((role & ~(ISP_ROLE_INITIATOR|ISP_ROLE_TARGET)) == 0)) {
device_printf(dev, "setting role to 0x%x\n", role);
} else {
role = ISP_DEFAULT_ROLES;
}
sbs->irq = sbs->regs = NULL;
sbs->rgd = sbs->iqd = 0;
sbs->regs = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sbs->rgd,
RF_ACTIVE);
if (sbs->regs == NULL) {
device_printf(dev, "unable to map registers\n");
goto bad;
}
sbs->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
sbs->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
sbs->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
sbs->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
sbs->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
isp->isp_regs = sbs->regs;
isp->isp_mdvec = &sbs->sbus_mdvec;
isp->isp_bustype = ISP_BT_SBUS;
isp->isp_type = ISP_HA_SCSI_UNKNOWN;
isp->isp_param = &sbs->sbus_param;
isp->isp_osinfo.pc.ptr = &sbs->sbus_spi;
isp->isp_revision = 0; /* XXX */
isp->isp_nchan = 1;
if (IS_FC(isp))
ISP_FC_PC(isp, 0)->def_role = role;
/*
* Get the clock frequency and convert it from HZ to MHz,
* rounding up. This defaults to 25MHz if there isn't a
* device specific one in the OFW device tree.
*/
sbs->sbus_mdvec.dv_clock = (sbus_get_clockfreq(dev) + 500000)/1000000;
/*
* Now figure out what the proper burst sizes, etc., to use.
* Unfortunately, there is no ddi_dma_burstsizes here which
* walks up the tree finding the limiting burst size node (if
* any). We just use what's here for isp.
*/
ispburst = sbus_get_burstsz(dev);
if (ispburst == 0) {
ispburst = SBUS_BURST_32 - 1;
}
sbs->sbus_mdvec.dv_conf1 = 0;
if (ispburst & (1 << 5)) {
sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32;
} else if (ispburst & (1 << 4)) {
sbs->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16;
} else if (ispburst & (1 << 3)) {
sbs->sbus_mdvec.dv_conf1 =
BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8;
}
if (sbs->sbus_mdvec.dv_conf1) {
sbs->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE;
}
/*
* We don't trust NVRAM on SBus cards
*/
isp->isp_confopts |= ISP_CFG_NONVRAM;
/*
* Mark things if we're a PTI SBus adapter.
*/
if (strcmp("PTI,ptisp", ofw_bus_get_name(dev)) == 0 ||
strcmp("ptisp", ofw_bus_get_name(dev)) == 0) {
SDPARAM(isp, 0)->isp_ptisp = 1;
}
isp->isp_osinfo.fw = firmware_get("isp_1000");
if (isp->isp_osinfo.fw) {
union {
const void *cp;
uint16_t *sp;
} stupid;
stupid.cp = isp->isp_osinfo.fw->data;
isp->isp_mdvec->dv_ispfw = stupid.sp;
}
tval = 0;
if (resource_int_value(device_get_name(dev), device_get_unit(dev),
"fwload_disable", &tval) == 0 && tval != 0) {
isp->isp_confopts |= ISP_CFG_NORELOAD;
}
default_id = -1;
if (resource_int_value(device_get_name(dev), device_get_unit(dev),
"iid", &tval) == 0) {
default_id = tval;
isp->isp_confopts |= ISP_CFG_OWNLOOPID;
}
if (default_id == -1) {
default_id = OF_getscsinitid(dev);
}
ISP_SPI_PC(isp, 0)->iid = default_id;
isp_debug = 0;
(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
"debug", &isp_debug);
sbs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sbs->iqd,
RF_ACTIVE | RF_SHAREABLE);
if (sbs->irq == NULL) {
device_printf(dev, "could not allocate interrupt\n");
goto bad;
}
if (bus_setup_intr(dev, sbs->irq, ISP_IFLAGS, NULL, isp_platform_intr,
isp, &sbs->ih)) {
device_printf(dev, "could not setup interrupt\n");
(void) bus_release_resource(dev, SYS_RES_IRQ,
sbs->iqd, sbs->irq);
goto bad;
}
isp->isp_nirq = 1;
/*
* Set up logging levels.
*/
if (isp_debug) {
isp->isp_dblev = isp_debug;
} else {
isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
}
if (bootverbose) {
isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
}
/*
* Make sure we're in reset state.
*/
ISP_LOCK(isp);
if (isp_reinit(isp, 1) != 0) {
ISP_UNLOCK(isp);
goto bad;
}
ISP_UNLOCK(isp);
if (isp_attach(isp)) {
ISP_LOCK(isp);
isp_shutdown(isp);
ISP_UNLOCK(isp);
goto bad;
}
return (0);
bad:
if (isp->isp_nirq > 0) {
(void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
(void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd,
sbs->irq);
}
if (sbs->regs) {
(void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd,
sbs->regs);
}
mtx_destroy(&isp->isp_lock);
return (ENXIO);
}
static int
isp_sbus_detach(device_t dev)
{
struct isp_sbussoftc *sbs = device_get_softc(dev);
ispsoftc_t *isp = &sbs->sbus_isp;
int status;
status = isp_detach(isp);
if (status)
return (status);
ISP_LOCK(isp);
isp_shutdown(isp);
ISP_UNLOCK(isp);
if (isp->isp_nirq > 0) {
(void) bus_teardown_intr(dev, sbs->irq, sbs->ih);
(void) bus_release_resource(dev, SYS_RES_IRQ, sbs->iqd,
sbs->irq);
}
(void) bus_release_resource(dev, SYS_RES_MEMORY, sbs->rgd, sbs->regs);
isp_sbus_mbxdmafree(isp);
mtx_destroy(&isp->isp_lock);
return (0);
}
#define IspVirt2Off(a, x) \
(((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
_BLK_REG_SHFT] + ((x) & 0xff))
#define BXR2(isp, off) bus_read_2((isp)->isp_regs, (off))
static void
isp_sbus_run_isr(ispsoftc_t *isp)
{
uint16_t isr, sema, info;
isr = BXR2(isp, IspVirt2Off(isp, BIU_ISR));
sema = BXR2(isp, IspVirt2Off(isp, BIU_SEMA));
isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
isr &= INT_PENDING_MASK(isp);
sema &= BIU_SEMA_LOCK;
if (isr == 0 && sema == 0)
return;
if (sema != 0) {
info = BXR2(isp, IspVirt2Off(isp, OUTMAILBOX0));
if (info & MBOX_COMMAND_COMPLETE)
isp_intr_mbox(isp, info);
else
isp_intr_async(isp, info);
if (isp->isp_state == ISP_RUNSTATE)
isp_intr_respq(isp);
} else
isp_intr_respq(isp);
ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
if (sema)
ISP_WRITE(isp, BIU_SEMA, 0);
}
static uint32_t
isp_sbus_rd_reg(ispsoftc_t *isp, int regoff)
{
uint16_t rval;
struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
rval = BXR2(isp, offset);
isp_prt(isp, ISP_LOGDEBUG3,
"isp_sbus_rd_reg(off %x) = %x", regoff, rval);
return (rval);
}
static void
isp_sbus_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
{
struct isp_sbussoftc *sbs = (struct isp_sbussoftc *) isp;
int offset = sbs->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
isp_prt(isp, ISP_LOGDEBUG3,
"isp_sbus_wr_reg(off %x) = %x", regoff, val);
bus_write_2(isp->isp_regs, offset, val);
MEMORYBARRIER(isp, SYNC_REG, offset, 2, -1);
}
struct imush {
bus_addr_t maddr;
int error;
};
static void imc(void *, bus_dma_segment_t *, int, int);
static void
imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct imush *imushp = (struct imush *) arg;
if (!(imushp->error = error))
imushp->maddr = segs[0].ds_addr;
}
static int
isp_sbus_mbxdma(ispsoftc_t *isp)
{
caddr_t base;
uint32_t len;
int i, error;
struct imush im;
/* Already been here? If so, leave... */
if (isp->isp_xflist != NULL)
return (0);
if (isp->isp_rquest != NULL && isp->isp_maxcmds == 0)
return (0);
ISP_UNLOCK(isp);
if (isp->isp_rquest != NULL)
goto gotmaxcmds;
if (bus_dma_tag_create(bus_get_dma_tag(ISP_SBD(isp)), 1,
BUS_SPACE_MAXADDR_24BIT+1, BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR_32BIT, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT,
ISP_NSEG_MAX, BUS_SPACE_MAXADDR_24BIT, 0,
busdma_lock_mutex, &isp->isp_lock, &isp->isp_osinfo.dmat)) {
isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
goto bad;
}
/*
* Allocate and map the request queue.
*/
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
if (bus_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
len, 1, len, 0, busdma_lock_mutex, &isp->isp_lock,
&isp->isp_osinfo.reqdmat)) {
isp_prt(isp, ISP_LOGERR, "cannot create request DMA tag");
goto bad;
}
if (bus_dmamem_alloc(isp->isp_osinfo.reqdmat, (void **)&base,
BUS_DMA_COHERENT, &isp->isp_osinfo.reqmap) != 0) {
isp_prt(isp, ISP_LOGERR, "cannot allocate request DMA memory");
bus_dma_tag_destroy(isp->isp_osinfo.reqdmat);
goto bad;
}
isp->isp_rquest = base;
im.error = 0;
if (bus_dmamap_load(isp->isp_osinfo.reqdmat, isp->isp_osinfo.reqmap,
base, len, imc, &im, 0) || im.error) {
isp_prt(isp, ISP_LOGERR, "error loading request DMA map %d", im.error);
goto bad;
}
isp_prt(isp, ISP_LOGDEBUG0, "request area @ 0x%jx/0x%jx",
(uintmax_t)im.maddr, (uintmax_t)len);
isp->isp_rquest_dma = im.maddr;
/*
* Allocate and map the result queue.
*/
len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
if (bus_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, BUS_SPACE_MAXADDR_24BIT+1,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
len, 1, len, 0, busdma_lock_mutex, &isp->isp_lock,
&isp->isp_osinfo.respdmat)) {
isp_prt(isp, ISP_LOGERR, "cannot create response DMA tag");
goto bad;
}
if (bus_dmamem_alloc(isp->isp_osinfo.respdmat, (void **)&base,
BUS_DMA_COHERENT, &isp->isp_osinfo.respmap) != 0) {
isp_prt(isp, ISP_LOGERR, "cannot allocate response DMA memory");
bus_dma_tag_destroy(isp->isp_osinfo.respdmat);
goto bad;
}
isp->isp_result = base;
im.error = 0;
if (bus_dmamap_load(isp->isp_osinfo.respdmat, isp->isp_osinfo.respmap,
base, len, imc, &im, 0) || im.error) {
isp_prt(isp, ISP_LOGERR, "error loading response DMA map %d", im.error);
goto bad;
}
isp_prt(isp, ISP_LOGDEBUG0, "response area @ 0x%jx/0x%jx",
(uintmax_t)im.maddr, (uintmax_t)len);
isp->isp_result_dma = im.maddr;
if (isp->isp_maxcmds == 0) {
ISP_LOCK(isp);
return (0);
}
gotmaxcmds:
len = sizeof (struct isp_pcmd) * isp->isp_maxcmds;
isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *)
malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
for (i = 0; i < isp->isp_maxcmds; i++) {
struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
if (error) {
isp_prt(isp, ISP_LOGERR,
"error %d creating per-cmd DMA maps", error);
while (--i >= 0) {
bus_dmamap_destroy(isp->isp_osinfo.dmat,
isp->isp_osinfo.pcmd_pool[i].dmap);
}
goto bad;
}
callout_init_mtx(&pcmd->wdog, &isp->isp_lock, 0);
if (i == isp->isp_maxcmds-1) {
pcmd->next = NULL;
} else {
pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
}
}
isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
len = sizeof (isp_hdl_t *) * isp->isp_maxcmds;
isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
for (len = 0; len < isp->isp_maxcmds - 1; len++)
isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
isp->isp_xffree = isp->isp_xflist;
ISP_LOCK(isp);
return (0);
bad:
isp_sbus_mbxdmafree(isp);
ISP_LOCK(isp);
return (1);
}
static void
isp_sbus_mbxdmafree(ispsoftc_t *isp)
{
int i;
if (isp->isp_xflist != NULL) {
free(isp->isp_xflist, M_DEVBUF);
isp->isp_xflist = NULL;
}
if (isp->isp_osinfo.pcmd_pool != NULL) {
for (i = 0; i < isp->isp_maxcmds; i++) {
bus_dmamap_destroy(isp->isp_osinfo.dmat,
isp->isp_osinfo.pcmd_pool[i].dmap);
}
free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
isp->isp_osinfo.pcmd_pool = NULL;
}
if (isp->isp_result_dma != 0) {
bus_dmamap_unload(isp->isp_osinfo.respdmat,
isp->isp_osinfo.respmap);
isp->isp_result_dma = 0;
}
if (isp->isp_result != NULL) {
bus_dmamem_free(isp->isp_osinfo.respdmat, isp->isp_result,
isp->isp_osinfo.respmap);
bus_dma_tag_destroy(isp->isp_osinfo.respdmat);
isp->isp_result = NULL;
}
if (isp->isp_rquest_dma != 0) {
bus_dmamap_unload(isp->isp_osinfo.reqdmat,
isp->isp_osinfo.reqmap);
isp->isp_rquest_dma = 0;
}
if (isp->isp_rquest != NULL) {
bus_dmamem_free(isp->isp_osinfo.reqdmat, isp->isp_rquest,
isp->isp_osinfo.reqmap);
bus_dma_tag_destroy(isp->isp_osinfo.reqdmat);
isp->isp_rquest = NULL;
}
}
typedef struct {
ispsoftc_t *isp;
void *cmd_token;
void *rq; /* original request */
int error;
} mush_t;
#define MUSHERR_NOQENTRIES -2
static void
dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
{
mush_t *mp = (mush_t *) arg;
ispsoftc_t *isp = mp->isp;
struct ccb_scsiio *csio = mp->cmd_token;
isp_ddir_t ddir;
int sdir;
if (error) {
mp->error = error;
return;
}
if (nseg == 0) {
ddir = ISP_NOXFR;
} else {
if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
ddir = ISP_FROM_DEVICE;
} else {
ddir = ISP_TO_DEVICE;
}
if ((csio->ccb_h.func_code == XPT_CONT_TARGET_IO) ^
((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN)) {
sdir = BUS_DMASYNC_PREREAD;
} else {
sdir = BUS_DMASYNC_PREWRITE;
}
bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap,
sdir);
}
if (isp_send_cmd(isp, mp->rq, dm_segs, nseg, XS_XFRLEN(csio),
ddir, NULL) != CMD_QUEUED) {
mp->error = MUSHERR_NOQENTRIES;
}
}
static int
isp_sbus_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
{
mush_t mush, *mp;
int error;
mp = &mush;
mp->isp = isp;
mp->cmd_token = csio;
mp->rq = ff;
mp->error = 0;
error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat,
PISP_PCMD(csio)->dmap, (union ccb *)csio, dma2, mp, 0);
if (error == EINPROGRESS) {
bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
mp->error = EINVAL;
isp_prt(isp, ISP_LOGERR,
"deferred dma allocation not supported");
} else if (error && mp->error == 0) {
#ifdef DIAGNOSTIC
isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
#endif
mp->error = error;
}
if (mp->error) {
int retval = CMD_COMPLETE;
if (mp->error == MUSHERR_NOQENTRIES) {
retval = CMD_EAGAIN;
} else if (mp->error == EFBIG) {
XS_SETERR(csio, CAM_REQ_TOO_BIG);
} else if (mp->error == EINVAL) {
XS_SETERR(csio, CAM_REQ_INVALID);
} else {
XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
}
return (retval);
}
return (CMD_QUEUED);
}
static void
isp_sbus_dumpregs(ispsoftc_t *isp, const char *msg)
{
if (msg)
printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
else
printf("%s:\n", device_get_nameunit(isp->isp_dev));
printf(" biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
printf(" cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
ISP_READ(isp, CDMA_FIFO_STS));
printf(" ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
ISP_READ(isp, DDMA_FIFO_STS));
printf(" sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
ISP_READ(isp, SXP_INTERRUPT),
ISP_READ(isp, SXP_GROSS_ERR),
ISP_READ(isp, SXP_PINS_CTRL));
ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
printf(" mbox regs: %x %x %x %x %x\n",
ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
ISP_READ(isp, OUTMAILBOX4));
}
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