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|
/* $OpenBSD: mpt_openbsd.c,v 1.29 2005/11/28 23:24:31 krw Exp $ */
/* $NetBSD: mpt_netbsd.c,v 1.7 2003/07/14 15:47:11 lukem Exp $ */
/*
* Copyright (c) 2004 Milos Urbanek
* 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.
* 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.
*
* 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.
*/
/*
* Copyright (c) 2003 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Jason R. Thorpe for Wasabi Systems, Inc.
*
* 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.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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.
*/
/*
* Copyright (c) 2000, 2001 by Greg Ansley
* Partially derived from Matt Jacob's ISP driver.
*
* 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.
*/
/*
* Additional Copyright (c) 2002 by Matthew Jacob under same license.
*/
/*
* mpt_openbsd.c:
*
* OpenBSD-specific routines for LSI Fusion adapters. Includes some
* bus_dma glue, and SCSI glue.
*
* Adapted from the NetBSD "mpt" driver by Milos Urbanek for
* ZOOM International, s.r.o.
*/
#include <sys/cdefs.h>
/* __KERNEL_RCSID(0, "$NetBSD: mpt_netbsd.c,v 1.7 2003/07/14 15:47:11 lukem Exp $"); */
#include <dev/ic/mpt.h> /* pulls in all headers */
void mpt_run_ppr(mpt_softc_t *, int);
int mpt_ppr(mpt_softc_t *, struct scsi_link *, int, int);
int mpt_poll(mpt_softc_t *, struct scsi_xfer *, int);
void mpt_timeout(void *);
void mpt_done(mpt_softc_t *, uint32_t);
int mpt_run_xfer(mpt_softc_t *, struct scsi_xfer *);
void mpt_check_xfer_settings(mpt_softc_t *, struct scsi_xfer *, MSG_SCSI_IO_REQUEST *);
void mpt_ctlop(mpt_softc_t *, void *vmsg, uint32_t);
void mpt_event_notify_reply(mpt_softc_t *, MSG_EVENT_NOTIFY_REPLY *);
int mpt_action(struct scsi_xfer *);
void mpt_minphys(struct buf *);
struct cfdriver mpt_cd = {
NULL, "mpt", DV_DULL
};
/* the below structure is so we have a default dev struct for our link struct */
static struct scsi_device mpt_dev = {
NULL, /* Use default error handler */
NULL, /* have a queue, served by this */
NULL, /* have no async handler */
NULL, /* Use default 'done' routine */
};
enum mpt_scsi_speed { U320, U160, U80 };
/*
* try speed and
* return 0 if failed
* return 1 if passed
*/
int
mpt_ppr(mpt_softc_t *mpt, struct scsi_link *sc_link, int speed, int flags)
{
CONFIG_PAGE_SCSI_DEVICE_0 page0;
CONFIG_PAGE_SCSI_DEVICE_1 page1;
uint8_t tp;
int error;
struct scsi_inquiry_data inqbuf;
if (mpt->verbose > 1) {
mpt_prt(mpt, "Entering PPR");
}
if (mpt->is_fc) {
/*
* SCSI transport settings don't make any sense for
* Fibre Channel; silently ignore the request.
*/
return 1; /* success */
}
/*
* Always allow disconnect; we don't have a way to disable
* it right now, in any case.
*/
mpt->mpt_disc_enable |= (1 << sc_link->target);
/*
* Enable tagged queueing.
*/
if (sc_link->quirks & SDEV_NOTAGS)
mpt->mpt_tag_enable &= ~(1 << sc_link->target);
else
mpt->mpt_tag_enable |= (1 << sc_link->target);
page1 = mpt->mpt_dev_page1[sc_link->target];
/*
* Set the wide/narrow parameter for the target.
*/
if (sc_link->quirks & SDEV_NOWIDE)
page1.RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE;
else {
page1.RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE;
}
/*
* Set the synchronous parameters for the target.
*/
page1.RequestedParameters &=
~(MPI_SCSIDEVPAGE1_RP_MIN_SYNC_PERIOD_MASK |
MPI_SCSIDEVPAGE1_RP_MAX_SYNC_OFFSET_MASK |
MPI_SCSIDEVPAGE1_RP_DT | MPI_SCSIDEVPAGE1_RP_QAS |
MPI_SCSIDEVPAGE1_RP_IU);
if (!(sc_link->quirks & SDEV_NOSYNC)) {
int factor, offset, np;
/*
* Factor:
* 0x08 = U320 = 6.25ns
* 0x09 = U160 = 12.5ns
* 0x0a = U80 = 25ns
*/
factor = (mpt->mpt_port_page0.Capabilities >> 8) & 0xff;
offset = (mpt->mpt_port_page0.Capabilities >> 16) & 0xff;
np = 0;
switch (speed) {
case U320:
/* do nothing */
break;
case U160:
factor = 0x09; /* force U160 */
break;
case U80:
factor = 0x0a; /* force U80 */
}
if (factor < 0x9) {
/* Ultra320 enable QAS & IU */
np |= MPI_SCSIDEVPAGE1_RP_QAS | MPI_SCSIDEVPAGE1_RP_IU;
}
if (factor < 0xa) {
/* >= Ultra160 enable DT transfer */
np |= MPI_SCSIDEVPAGE1_RP_DT;
}
np |= (factor << 8) | (offset << 16);
page1.RequestedParameters |= np;
}
/* write parameters out to chip */
if (mpt_write_cfg_page(mpt, sc_link->target, &page1.Header)) {
mpt_prt(mpt, "unable to write Device Page 1");
return 0;
}
/* make sure the parameters were written */
if (mpt_read_cfg_page(mpt, sc_link->target, &page1.Header)) {
mpt_prt(mpt, "unable to read back Device Page 1");
return 0;
}
mpt->mpt_dev_page1[sc_link->target] = page1;
if (mpt->verbose > 1) {
mpt_prt(mpt,
"SPI Target %d Page 1: RequestedParameters %x Config %x",
sc_link->target,
mpt->mpt_dev_page1[sc_link->target].RequestedParameters,
mpt->mpt_dev_page1[sc_link->target].Configuration);
}
/*
* use INQUIRY for PPR two reasons:
* 1) actually transfer data at requested speed
* 2) no need to test for TUR QUIRK
*/
error = scsi_inquire(sc_link, &inqbuf, flags);
if (error) {
mpt_prt(mpt, "Invalid INQUIRY on target: %d", sc_link->target);
return 0;
}
/* read page 0 back to figure out if the PPR worked */
page0 = mpt->mpt_dev_page0[sc_link->target];
if (mpt_read_cfg_page(mpt, sc_link->target, &page0.Header)) {
mpt_prt(mpt, "unable to read Device Page 0");
return 0;
}
if (mpt->verbose > 1) {
mpt_prt(mpt,
"SPI Tgt %d Page 0: NParms %x Information %x",
sc_link->target,
page0.NegotiatedParameters, page0.Information);
}
if (!(page0.NegotiatedParameters & 0x07) && (speed == U320)) {
/*
* if lowest 3 aren't set the PPR probably failed,
* retry with other parameters
*/
if (mpt->verbose > 1) {
mpt_prt(mpt, "U320 PPR failed");
}
return 0;
}
if ((((page0.NegotiatedParameters >> 8) & 0xff) > 0x09) &&
(speed == U160)) {
/* if transfer period > 0x09 then U160 PPR failed, retry */
if (mpt->verbose > 1) {
mpt_prt(mpt, "U160 PPR failed");
}
return 0;
}
/*
* Bit 3 - PPR rejected: IOC sets this if the device rejects PPR.
* Bit 2 - WDTR rejected: IOC sets this if the device rejects WDTR.
* Bit 1 - SDTR Rejected: IOC sets this if the device rejects SDTR.
* Bit 0 - 1 A SCSI SDTR, WDTR, or PPR negotiation has occurred.
*/
if (page0.Information & 0x0e) {
/* target rejected PPR message */
mpt_prt(mpt, "Target %d rejected PPR message with %02x",
sc_link->target,
(uint8_t)page0.Information);
return 0;
}
/* print PPR results */
switch ((page0.NegotiatedParameters >> 8) & 0xff) {
case 0x08:
tp = 160;
break;
case 0x09:
tp = 80;
break;
case 0x0a:
tp = 40;
break;
case 0x0b:
tp = 20;
break;
case 0x0c:
tp = 10;
break;
default:
tp = 0;
}
mpt_prt(mpt,
"target %d %s at %dMHz width %dbit offset %d QAS %d DT %d IU %d",
sc_link->target,
tp ? "Synchronous" : "Asynchronous",
tp,
(page0.NegotiatedParameters & 0x20000000) ? 16 : 8,
(page0.NegotiatedParameters >> 16) & 0xff,
(page0.NegotiatedParameters & 0x04) ? 1 : 0,
(page0.NegotiatedParameters & 0x02) ? 1 : 0,
(page0.NegotiatedParameters & 0x01) ? 1 : 0);
return 1; /* success */
}
/*
* Run PPR on all attached devices
*/
void
mpt_run_ppr(mpt_softc_t *mpt, int flags)
{
struct scsi_link *sc_link;
struct device *dev;
u_int8_t target;
u_int16_t buswidth;
/* walk device list */
for (dev = TAILQ_FIRST(&alldevs); dev != NULL;
dev = TAILQ_NEXT(dev, dv_list)) {
if (dev->dv_parent == (struct device *)mpt) {
/* found scsibus softc */
buswidth = ((struct scsi_link *)&mpt->sc_link)->
adapter_buswidth;
/* printf("mpt_softc: %x scsibus: %x buswidth: %d\n",
* mpt, dev, buswidth); */
/* walk target list */
for (target = 0; target < buswidth; target++) {
sc_link = ((struct scsibus_softc *)dev)->
sc_link[target][0];
if ((sc_link != NULL)) {
/* got a device! run PPR */
/* skip CPU devices since they
* can crash at U320 speeds */
if ((sc_link->inqdata.device & SID_TYPE)
== T_PROCESSOR) {
continue;
}
if (mpt_ppr(mpt, sc_link, U320, flags)){
mpt->mpt_negotiated_speed
[target] = U320;
continue;
}
if (mpt_ppr(mpt, sc_link, U160, flags)){
mpt->mpt_negotiated_speed
[target] = U160;
continue;
}
if (mpt_ppr(mpt, sc_link, U80, flags)) {
mpt->mpt_negotiated_speed
[target] = U80;
continue;
}
} /* sc_link */
} /* for target */
} /* if dev */
} /* end for dev */
}
/*
* Complete attachment of hardware, include subdevices.
*/
void
mpt_attach(mpt_softc_t *mpt)
{
struct scsi_link *lptr = &mpt->sc_link;
mpt->bus = 0; /* XXX ?? */
/* Fill in the scsi_adapter. */
mpt->sc_adapter.scsi_cmd = mpt_action;
mpt->sc_adapter.scsi_minphys = mpt_minphys;
/* Fill in the prototype scsi_link */
lptr->adapter_softc = mpt;
lptr->device = &mpt_dev;
lptr->adapter = &mpt->sc_adapter;
lptr->flags = 0;
lptr->luns = 8;
if (mpt->is_fc) {
lptr->adapter_buswidth = 256;
lptr->adapter_target = 256;
} else {
lptr->adapter_buswidth = 16;
lptr->adapter_target = mpt->mpt_ini_id;
}
lptr->openings = MPT_MAX_REQUESTS(mpt) / lptr->adapter_buswidth;
#ifdef MPT_DEBUG
mpt->verbose = 2;
#endif
mpt_prt(mpt, "IM support: %x", mpt->im_support);
(void) config_found(&mpt->mpt_dev, lptr, scsiprint);
/* done attaching now walk targets and PPR them */
/* FC does not do PPR */
if (!mpt->is_fc) {
mpt_run_ppr(mpt, SCSI_POLL);
}
}
int
mpt_dma_mem_alloc(mpt_softc_t *mpt)
{
bus_dma_segment_t reply_seg, request_seg;
int reply_rseg, request_rseg;
bus_addr_t pptr, end;
caddr_t vptr;
size_t len;
int error, i;
/* Check if we have already allocated the reply memory. */
if (mpt->reply != NULL)
return (0);
/*
* Allocate the request pool. This isn't really DMA'd memory,
* but it's a convenient place to do it.
*/
len = sizeof(request_t) * MPT_MAX_REQUESTS(mpt);
mpt->request_pool = malloc(len, M_DEVBUF, M_WAITOK);
if (mpt->request_pool == NULL) {
printf("%s: unable to allocate request pool\n",
mpt->mpt_dev.dv_xname);
return (ENOMEM);
}
bzero(mpt->request_pool, len);
/*
* Allocate DMA resources for reply buffers.
*/
error = bus_dmamem_alloc(mpt->sc_dmat, PAGE_SIZE, PAGE_SIZE, 0,
&reply_seg, 1, &reply_rseg, 0);
if (error) {
printf("%s: unable to allocate reply area, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_0;
}
error = bus_dmamem_map(mpt->sc_dmat, &reply_seg, reply_rseg, PAGE_SIZE,
(caddr_t *) &mpt->reply, BUS_DMA_COHERENT/*XXX*/);
if (error) {
printf("%s: unable to map reply area, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_1;
}
error = bus_dmamap_create(mpt->sc_dmat, PAGE_SIZE, 1, PAGE_SIZE,
0, 0, &mpt->reply_dmap);
if (error) {
printf("%s: unable to create reply DMA map, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_2;
}
error = bus_dmamap_load(mpt->sc_dmat, mpt->reply_dmap, mpt->reply,
PAGE_SIZE, NULL, 0);
if (error) {
printf("%s: unable to load reply DMA map, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_3;
}
mpt->reply_phys = mpt->reply_dmap->dm_segs[0].ds_addr;
/*
* Allocate DMA resources for request buffers.
*/
error = bus_dmamem_alloc(mpt->sc_dmat, MPT_REQ_MEM_SIZE(mpt),
PAGE_SIZE, 0, &request_seg, 1, &request_rseg, 0);
if (error) {
printf("%s: unable to allocate request area, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_4;
}
error = bus_dmamem_map(mpt->sc_dmat, &request_seg, request_rseg,
MPT_REQ_MEM_SIZE(mpt), (caddr_t *) &mpt->request, 0);
if (error) {
printf("%s: unable to map request area, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_5;
}
error = bus_dmamap_create(mpt->sc_dmat, MPT_REQ_MEM_SIZE(mpt), 1,
MPT_REQ_MEM_SIZE(mpt), 0, 0, &mpt->request_dmap);
if (error) {
printf("%s: unable to create request DMA map, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_6;
}
error = bus_dmamap_load(mpt->sc_dmat, mpt->request_dmap, mpt->request,
MPT_REQ_MEM_SIZE(mpt), NULL, 0);
if (error) {
printf("%s: unable to load request DMA map, error = %d\n",
mpt->mpt_dev.dv_xname, error);
goto fail_7;
}
mpt->request_phys = mpt->request_dmap->dm_segs[0].ds_addr;
pptr = mpt->request_phys;
vptr = (caddr_t) mpt->request;
end = pptr + MPT_REQ_MEM_SIZE(mpt);
for (i = 0; pptr < end; i++) {
request_t *req = &mpt->request_pool[i];
req->index = i;
/* Store location of Request Data */
req->req_pbuf = pptr;
req->req_vbuf = vptr;
pptr += MPT_REQUEST_AREA;
vptr += MPT_REQUEST_AREA;
req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
error = bus_dmamap_create(mpt->sc_dmat, MAXPHYS,
MPT_SGL_MAX, MAXPHYS, 0, 0, &req->dmap);
if (error) {
printf("%s: unable to create req %d DMA map, error = ",
"%d", mpt->mpt_dev.dv_xname, i, error);
goto fail_8;
}
}
return (0);
fail_8:
for (--i; i >= 0; i--) {
request_t *req = &mpt->request_pool[i];
if (req->dmap != NULL)
bus_dmamap_destroy(mpt->sc_dmat, req->dmap);
}
bus_dmamap_unload(mpt->sc_dmat, mpt->request_dmap);
fail_7:
bus_dmamap_destroy(mpt->sc_dmat, mpt->request_dmap);
fail_6:
bus_dmamem_unmap(mpt->sc_dmat, (caddr_t)mpt->request, PAGE_SIZE);
fail_5:
bus_dmamem_free(mpt->sc_dmat, &request_seg, request_rseg);
fail_4:
bus_dmamap_unload(mpt->sc_dmat, mpt->reply_dmap);
fail_3:
bus_dmamap_destroy(mpt->sc_dmat, mpt->reply_dmap);
fail_2:
bus_dmamem_unmap(mpt->sc_dmat, (caddr_t)mpt->reply, PAGE_SIZE);
fail_1:
bus_dmamem_free(mpt->sc_dmat, &reply_seg, reply_rseg);
fail_0:
free(mpt->request_pool, M_DEVBUF);
mpt->reply = NULL;
mpt->request = NULL;
mpt->request_pool = NULL;
return (error);
}
int
mpt_intr(void *arg)
{
mpt_softc_t *mpt = arg;
int nrepl = 0;
uint32_t reply;
/*
if ((mpt_read(mpt, MPT_OFFSET_INTR_STATUS) & MPT_INTR_REPLY_READY) == 0)
return (0);
*/
/*
* Speed up trick to save one PCI read.
* Reply FIFO replies 0xffffffff whenever
* MPT_OFFSET_INTR_STATUS & MPT_INTR_REPLY_READY == 0
*
*/
reply = mpt_pop_reply_queue(mpt);
if (reply == 0xffffffff) {
/* check doorbell, this is error path not IO path */
/* FIXME for now ignore strays and doorbells */
return (0);
}
while (reply != MPT_REPLY_EMPTY) {
nrepl++;
if (mpt->verbose > 1) {
if ((reply & MPT_CONTEXT_REPLY) != 0) {
/* Address reply; IOC has something to say */
mpt_print_reply(MPT_REPLY_PTOV(mpt, reply));
} else {
/* Context reply; all went well */
mpt_prt(mpt, "context %u reply OK", reply);
}
}
mpt_done(mpt, reply);
reply = mpt_pop_reply_queue(mpt);
}
return (nrepl != 0);
}
void
mpt_prt(mpt_softc_t *mpt, const char *fmt, ...)
{
va_list ap;
printf("%s: ", mpt->mpt_dev.dv_xname);
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
printf("\n");
}
int
mpt_poll(mpt_softc_t *mpt, struct scsi_xfer *xs, int count)
{
/* Timeouts are in msec, so we loop in 1000usec cycles */
while (count) {
mpt_intr(mpt);
if (xs->flags & ITSDONE) {
return (0);
}
delay(1000); /* only happens in boot, so ok */
count--;
}
return (1);
}
void
mpt_timeout(void *arg)
{
request_t *req = arg;
struct scsi_xfer *xs = req->xfer;
struct scsi_link *linkp = xs->sc_link;
mpt_softc_t *mpt = (void *) linkp->adapter_softc;
uint32_t oseq;
int s, index;
mpt_prt(mpt, "command timeout");
sc_print_addr(linkp);
s = splbio();
oseq = req->sequence;
mpt->timeouts++;
if (mpt_intr(mpt)) {
if (req->sequence != oseq) {
mpt_prt(mpt, "recovered from command timeout");
splx(s);
return;
}
}
mpt_prt(mpt,
"timeout on request index = 0x%x, seq = 0x%08x",
req->index, req->sequence);
mpt_check_doorbell(mpt);
mpt_prt(mpt, "Status 0x%08x, Mask 0x%08x, Doorbell 0x%08x",
mpt_read(mpt, MPT_OFFSET_INTR_STATUS),
mpt_read(mpt, MPT_OFFSET_INTR_MASK),
mpt_read(mpt, MPT_OFFSET_DOORBELL));
mpt_prt(mpt, "request state: %s", mpt_req_state(req->debug));
if (mpt->verbose > 1)
mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
for(index = 0; index < MPT_MAX_REQUESTS(mpt); index++)
if (req == &mpt->request_pool[index]) {
req->debug = REQ_TIMEOUT;
break;
}
mpt_done(mpt, index);
splx(s);
}
void
mpt_done(mpt_softc_t *mpt, uint32_t reply)
{
struct scsi_xfer *xs = NULL;
struct scsi_link *linkp;
int index;
request_t *req;
MSG_REQUEST_HEADER *mpt_req;
MSG_SCSI_IO_REPLY *mpt_reply;
if ((reply & MPT_CONTEXT_REPLY) == 0) {
/* context reply (ok) */
mpt_reply = NULL;
index = reply & MPT_CONTEXT_MASK;
} else {
/* address reply (error) */
/* XXX BUS_DMASYNC_POSTREAD XXX */
mpt_reply = MPT_REPLY_PTOV(mpt, reply);
if (mpt->verbose > 1) {
uint32_t *pReply = (uint32_t *) mpt_reply;
mpt_prt(mpt, "Address Reply (index %u):",
mpt_reply->MsgContext & 0xffff);
mpt_prt(mpt, "%08x %08x %08x %08x",
pReply[0], pReply[1], pReply[2], pReply[3]);
mpt_prt(mpt, "%08x %08x %08x %08x",
pReply[4], pReply[5], pReply[6], pReply[7]);
mpt_prt(mpt, "%08x %08x %08x %08x",
pReply[8], pReply[9], pReply[10], pReply[11]);
}
index = mpt_reply->MsgContext;
}
/*
* Address reply with MessageContext high bit set.
* This is most likely a notify message, so we try
* to process it, then free it.
*/
if ((index & 0x80000000) != 0) {
if (mpt_reply != NULL)
mpt_ctlop(mpt, mpt_reply, reply);
else
mpt_prt(mpt, "mpt_done: index 0x%x, NULL reply", index);
return;
}
/* Did we end up with a valid index into the table? */
if (index < 0 || index >= MPT_MAX_REQUESTS(mpt)) {
mpt_prt(mpt, "mpt_done: invalid index (0x%x) in reply", index);
return;
}
req = &mpt->request_pool[index];
/* Make sure memory hasn't been trashed. */
if (req->index != index) {
mpt_prt(mpt, "mpt_done: corrupted request_t (0x%x)", index);
return;
}
MPT_SYNC_REQ(mpt, req, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
mpt_req = req->req_vbuf;
/* Short cut for task management replies; nothing more for us to do. */
if (mpt_req->Function == MPI_FUNCTION_SCSI_TASK_MGMT) {
if (mpt->verbose > 1)
mpt_prt(mpt, "mpt_done: TASK MGMT");
goto done;
}
if (mpt_req->Function == MPI_FUNCTION_PORT_ENABLE)
goto done;
/*
* At this point, it had better be a SCSI I/O command, but don't
* crash if it isn't.
*/
if (mpt_req->Function != MPI_FUNCTION_SCSI_IO_REQUEST) {
if (mpt->verbose > 1)
mpt_prt(mpt, "mpt_done: unknown Function 0x%x (0x%x)",
mpt_req->Function, index);
goto done;
}
/* Recover scsi_xfer from the request structure. */
xs = req->xfer;
/* Can't have a SCSI command without a scsi_xfer. */
if (xs == NULL) {
mpt_prt(mpt,
"mpt_done: no scsi_xfer, index = 0x%x, seq = 0x%08x",
req->index, req->sequence);
mpt_prt(mpt, "request state: %s", mpt_req_state(req->debug));
mpt_prt(mpt, "mpt_request:");
mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
if (mpt_reply != NULL) {
mpt_prt(mpt, "mpt_reply:");
mpt_print_reply(mpt_reply);
} else {
mpt_prt(mpt, "context reply: 0x%08x", reply);
}
goto done;
}
timeout_del(&xs->stimeout);
linkp = xs->sc_link;
/*
* If we were a data transfer, unload the map that described
* the data buffer.
*/
if (xs->datalen != 0) {
bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
req->dmap->dm_mapsize,
(xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_POSTREAD
: BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(mpt->sc_dmat, req->dmap);
}
if (req->debug == REQ_TIMEOUT) {
xs->error = XS_TIMEOUT;
xs->status = SCSI_OK;
xs->resid = 0;
goto done;
} else if (mpt_reply == NULL) {
/*
* Context reply; report that the command was
* successful!
*
* Also report the xfer mode, if necessary.
*/
xs->error = XS_NOERROR;
xs->status = SCSI_OK;
xs->resid = 0;
goto done;
}
xs->status = mpt_reply->SCSIStatus;
switch (mpt_reply->IOCStatus) {
case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
xs->error = XS_DRIVER_STUFFUP;
break;
case MPI_IOCSTATUS_SCSI_DATA_UNDERRUN:
/*
* Yikes! Tagged queue full comes through this path!
*
* So we'll change it to a status error and anything
* that returns status should probably be a status
* error as well.
*/
xs->resid = xs->datalen - mpt_reply->TransferCount;
if (mpt_reply->SCSIState &
MPI_SCSI_STATE_NO_SCSI_STATUS) {
xs->error = XS_DRIVER_STUFFUP;
break;
}
/* FALLTHROUGH */
case MPI_IOCSTATUS_SUCCESS:
case MPI_IOCSTATUS_SCSI_RECOVERED_ERROR:
switch (xs->status) {
case SCSI_OK:
xs->resid = 0;
break;
case SCSI_CHECK:
xs->error = XS_SENSE;
break;
case SCSI_BUSY:
xs->error = XS_BUSY;
break;
case SCSI_QUEUE_FULL:
xs->error = XS_TIMEOUT;
xs->retries++;
break;
default:
sc_print_addr(linkp);
mpt_prt(mpt, "invalid status code %d", xs->status);
xs->error = XS_DRIVER_STUFFUP;
break;
}
break;
case MPI_IOCSTATUS_BUSY:
case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
xs->error = XS_BUSY;
break;
case MPI_IOCSTATUS_SCSI_INVALID_BUS:
case MPI_IOCSTATUS_SCSI_INVALID_TARGETID:
case MPI_IOCSTATUS_SCSI_DEVICE_NOT_THERE:
xs->error = XS_SELTIMEOUT;
break;
case MPI_IOCSTATUS_SCSI_RESIDUAL_MISMATCH:
xs->error = XS_DRIVER_STUFFUP;
break;
case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
xs->error = XS_DRIVER_STUFFUP;
break;
case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
/* XXX */
xs->error = XS_DRIVER_STUFFUP;
break;
case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
/* XXX */
xs->error = XS_DRIVER_STUFFUP;
break;
case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
/* XXX This is a bus-reset */
xs->error = XS_DRIVER_STUFFUP;
break;
default:
/* XXX unrecognized HBA error */
xs->error = XS_DRIVER_STUFFUP;
break;
}
if (mpt_reply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
memcpy(&xs->sense, req->sense_vbuf,
sizeof(xs->sense));
} else if (mpt_reply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_FAILED) {
/*
* This will cause the scsi layer to issue
* a REQUEST SENSE.
*/
if (xs->status == SCSI_CHECK)
xs->error = XS_BUSY;
}
done:
/* If IOC done with this requeset, free it up. */
if (mpt_reply == NULL || (mpt_reply->MsgFlags & 0x80) == 0)
mpt_free_request(mpt, req);
/* If address reply, give the buffer back to the IOC. */
if (mpt_reply != NULL)
mpt_free_reply(mpt, (reply << 1));
if (xs != NULL) {
xs->flags |= ITSDONE;
scsi_done(xs);
}
}
int
mpt_run_xfer(mpt_softc_t *mpt, struct scsi_xfer *xs)
{
struct scsi_link *linkp = xs->sc_link;
request_t *req;
MSG_SCSI_IO_REQUEST *mpt_req;
int error, s;
s = splbio();
req = mpt_get_request(mpt);
if (req == NULL) {
/* This should happen very infrequently. */
xs->error = XS_DRIVER_STUFFUP;
xs->flags |= ITSDONE;
scsi_done(xs);
splx(s);
return (COMPLETE);
}
splx(s);
/* Link the req and the scsi_xfer. */
req->xfer = xs;
/* Now we build the command for the IOC */
mpt_req = req->req_vbuf;
bzero(mpt_req, sizeof(*mpt_req));
mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
mpt_req->Bus = mpt->bus;
mpt_req->SenseBufferLength =
(sizeof(xs->sense) < MPT_SENSE_SIZE) ?
sizeof(xs->sense) : MPT_SENSE_SIZE;
/*
* We use the message context to find the request structure when
* we get the command completion interrupt from the IOC.
*/
mpt_req->MsgContext = req->index;
/* Which physical device to do the I/O on. */
mpt_req->TargetID = linkp->target;
mpt_req->LUN[1] = linkp->lun;
/* Set the direction of the transfer. */
if (xs->flags & SCSI_DATA_IN)
mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
else if (xs->flags & SCSI_DATA_OUT)
mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
else
mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
mpt_check_xfer_settings(mpt, xs, mpt_req);
/* Copy the SCSI command block into place. */
memcpy(mpt_req->CDB, xs->cmd, xs->cmdlen);
mpt_req->CDBLength = xs->cmdlen;
mpt_req->DataLength = xs->datalen;
mpt_req->SenseBufferLowAddr = req->sense_pbuf;
/*
* Map the DMA transfer.
*/
if (xs->datalen) {
SGE_SIMPLE32 *se;
error = bus_dmamap_load(mpt->sc_dmat, req->dmap, xs->data,
xs->datalen, NULL,
((xs->flags & SCSI_NOSLEEP) ? BUS_DMA_NOWAIT
: BUS_DMA_WAITOK) |
BUS_DMA_STREAMING |
((xs->flags & SCSI_DATA_IN) ? BUS_DMA_READ
: BUS_DMA_WRITE));
switch (error) {
case 0:
break;
case ENOMEM:
case EAGAIN:
xs->error = XS_DRIVER_STUFFUP;
goto out_bad;
default:
mpt_prt(mpt, "error %d loading DMA map", error);
out_bad:
s = splbio();
mpt_free_request(mpt, req);
splx(s);
return (TRY_AGAIN_LATER);
}
if (req->dmap->dm_nsegs > MPT_NSGL_FIRST(mpt)) {
int seg, i, nleft = req->dmap->dm_nsegs;
uint32_t flags;
SGE_CHAIN32 *ce;
seg = 0;
mpt_req->DataLength = xs->datalen;
flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
if (xs->flags & SCSI_DATA_OUT)
flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
se = (SGE_SIMPLE32 *) &mpt_req->SGL;
for (i = 0; i < MPT_NSGL_FIRST(mpt) - 1;
i++, se++, seg++) {
uint32_t tf;
bzero(se, sizeof(*se));
se->Address = req->dmap->dm_segs[seg].ds_addr;
MPI_pSGE_SET_LENGTH(se,
req->dmap->dm_segs[seg].ds_len);
tf = flags;
if (i == MPT_NSGL_FIRST(mpt) - 2)
tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
MPI_pSGE_SET_FLAGS(se, tf);
nleft--;
}
/*
* Tell the IOC where to find the first chain element.
*/
mpt_req->ChainOffset =
((char *)se - (char *)mpt_req) >> 2;
/*
* Until we're finished with all segments...
*/
while (nleft) {
int ntodo;
/*
* Construct the chain element that points to
* the next segment.
*/
ce = (SGE_CHAIN32 *) se++;
if (nleft > MPT_NSGL(mpt)) {
ntodo = MPT_NSGL(mpt) - 1;
ce->NextChainOffset = (MPT_RQSL(mpt) -
sizeof(SGE_SIMPLE32)) >> 2;
ce->Length = MPT_NSGL(mpt)
* sizeof(SGE_SIMPLE32);
} else {
ntodo = nleft;
ce->NextChainOffset = 0;
ce->Length = ntodo
* sizeof(SGE_SIMPLE32);
}
ce->Address = req->req_pbuf +
((char *)se - (char *)mpt_req);
ce->Flags = MPI_SGE_FLAGS_CHAIN_ELEMENT;
for (i = 0; i < ntodo; i++, se++, seg++) {
uint32_t tf;
bzero(se, sizeof(*se));
se->Address =
req->dmap->dm_segs[seg].ds_addr;
MPI_pSGE_SET_LENGTH(se,
req->dmap->dm_segs[seg].ds_len);
tf = flags;
if (i == ntodo - 1) {
tf |=
MPI_SGE_FLAGS_LAST_ELEMENT;
if (ce->NextChainOffset == 0) {
tf |=
MPI_SGE_FLAGS_END_OF_LIST |
MPI_SGE_FLAGS_END_OF_BUFFER;
}
}
MPI_pSGE_SET_FLAGS(se, tf);
nleft--;
}
}
bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
req->dmap->dm_mapsize,
(xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_PREREAD :
BUS_DMASYNC_PREWRITE);
} else {
int i;
uint32_t flags;
mpt_req->DataLength = xs->datalen;
flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
if (xs->flags & SCSI_DATA_OUT)
flags |= MPI_SGE_FLAGS_HOST_TO_IOC;
/* Copy the segments into our SG list. */
se = (SGE_SIMPLE32 *) &mpt_req->SGL;
for (i = 0; i < req->dmap->dm_nsegs;
i++, se++) {
uint32_t tf;
bzero(se, sizeof(*se));
se->Address = req->dmap->dm_segs[i].ds_addr;
MPI_pSGE_SET_LENGTH(se,
req->dmap->dm_segs[i].ds_len);
tf = flags;
if (i == req->dmap->dm_nsegs - 1) {
tf |=
MPI_SGE_FLAGS_LAST_ELEMENT |
MPI_SGE_FLAGS_END_OF_BUFFER |
MPI_SGE_FLAGS_END_OF_LIST;
}
MPI_pSGE_SET_FLAGS(se, tf);
}
bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
req->dmap->dm_mapsize,
(xs->flags & SCSI_DATA_IN) ? BUS_DMASYNC_PREREAD :
BUS_DMASYNC_PREWRITE);
}
} else {
/*
* No data to transfer; just make a single simple SGL
* with zero length.
*/
SGE_SIMPLE32 *se = (SGE_SIMPLE32 *) &mpt_req->SGL;
bzero(se, sizeof(*se));
MPI_pSGE_SET_FLAGS(se,
(MPI_SGE_FLAGS_LAST_ELEMENT | MPI_SGE_FLAGS_END_OF_BUFFER |
MPI_SGE_FLAGS_SIMPLE_ELEMENT | MPI_SGE_FLAGS_END_OF_LIST));
}
if (mpt->verbose > 1)
mpt_print_scsi_io_request(mpt_req);
s = splbio();
/* Always reset xs->stimeout, lest we timeout_del() with trash */
timeout_set(&xs->stimeout, mpt_timeout, req);
if ((xs->flags & SCSI_POLL) == 0)
timeout_add(&xs->stimeout, mstohz(xs->timeout));
mpt_send_cmd(mpt, req);
splx(s);
if ((xs->flags & SCSI_POLL) == 0) {
return (SUCCESSFULLY_QUEUED);
}
/*
* If we can't use interrupts, poll on completion.
*/
if (mpt_poll(mpt, xs, xs->timeout)) {
mpt_timeout(req);
/* XXX scsi_done called
return (TRY_AGAIN_LATER);
*/
/* XXX MP this does not look correct */
return (COMPLETE);
}
return (COMPLETE);
}
void
mpt_ctlop(mpt_softc_t *mpt, void *vmsg, uint32_t reply)
{
MSG_DEFAULT_REPLY *dmsg = vmsg;
switch (dmsg->Function) {
case MPI_FUNCTION_EVENT_NOTIFICATION:
mpt_event_notify_reply(mpt, vmsg);
mpt_free_reply(mpt, (reply << 1));
break;
case MPI_FUNCTION_EVENT_ACK:
mpt_free_reply(mpt, (reply << 1));
break;
case MPI_FUNCTION_PORT_ENABLE:
{
MSG_PORT_ENABLE_REPLY *msg = vmsg;
int index = msg->MsgContext & ~0x80000000;
if (mpt->verbose > 1)
mpt_prt(mpt, "enable port reply index %d", index);
if (index >= 0 && index < MPT_MAX_REQUESTS(mpt)) {
request_t *req = &mpt->request_pool[index];
req->debug = REQ_DONE;
}
mpt_free_reply(mpt, (reply << 1));
break;
}
case MPI_FUNCTION_CONFIG:
{
MSG_CONFIG_REPLY *msg = vmsg;
int index = msg->MsgContext & ~0x80000000;
if (index >= 0 && index < MPT_MAX_REQUESTS(mpt)) {
request_t *req = &mpt->request_pool[index];
req->debug = REQ_DONE;
req->sequence = reply;
} else
mpt_free_reply(mpt, (reply << 1));
break;
}
default:
mpt_prt(mpt, "unknown ctlop: 0x%x", dmsg->Function);
}
}
void
mpt_event_notify_reply(mpt_softc_t *mpt, MSG_EVENT_NOTIFY_REPLY *msg)
{
switch (msg->Event) {
case MPI_EVENT_LOG_DATA:
{
int i;
/* Some error occurrerd that the Fusion wants logged. */
mpt_prt(mpt, "EvtLogData: IOCLogInfo: 0x%08x", msg->IOCLogInfo);
mpt_prt(mpt, "EvtLogData: Event Data:");
for (i = 0; i < msg->EventDataLength; i++) {
if ((i % 4) == 0)
printf("%s:\t", mpt->mpt_dev.dv_xname);
printf("0x%08x%c", msg->Data[i],
((i % 4) == 3) ? '\n' : ' ');
}
if ((i % 4) != 0)
printf("\n");
break;
}
case MPI_EVENT_UNIT_ATTENTION:
mpt_prt(mpt, "Unit Attn: Bus 0x%02x Target 0x%02x",
(msg->Data[0] >> 8) & 0xff, msg->Data[0] & 0xff);
break;
case MPI_EVENT_IOC_BUS_RESET:
/* We generated a bus reset. */
mpt_prt(mpt, "IOC Bus Reset Port %d",
(msg->Data[0] >> 8) & 0xff);
break;
case MPI_EVENT_EXT_BUS_RESET:
/* Someone else generated a bus reset. */
mpt_prt(mpt, "External Bus Reset");
/*
* These replies don't return EventData like the MPI
* spec says they do.
*/
/* XXX Send an async event? */
break;
case MPI_EVENT_RESCAN:
/*
* In general, thise means a device has been added
* to the loop.
*/
mpt_prt(mpt, "Rescan Port %d", (msg->Data[0] >> 8) & 0xff);
/* XXX Send an async event? */
break;
case MPI_EVENT_LINK_STATUS_CHANGE:
mpt_prt(mpt, "Port %d: Link state %s",
(msg->Data[1] >> 8) & 0xff,
(msg->Data[0] & 0xff) == 0 ? "Failed" : "Active");
break;
case MPI_EVENT_LOOP_STATE_CHANGE:
switch ((msg->Data[0] >> 16) & 0xff) {
case 0x01:
mpt_prt(mpt,
"Port %d: FC Link Event: LIP(%02x,%02x) "
"(Loop Initialization)",
(msg->Data[1] >> 8) & 0xff,
(msg->Data[0] >> 8) & 0xff,
(msg->Data[0] ) & 0xff);
switch ((msg->Data[0] >> 8) & 0xff) {
case 0xf7:
if ((msg->Data[0] & 0xff) == 0xf7)
mpt_prt(mpt, "\tDevice needs AL_PA");
else
mpt_prt(mpt, "\tDevice %02x doesn't "
"like FC performance",
msg->Data[0] & 0xff);
break;
case 0xf8:
if ((msg->Data[0] & 0xff) == 0xf7)
mpt_prt(mpt, "\tDevice detected loop "
"failure before acquiring AL_PA");
else
mpt_prt(mpt, "\tDevice %02x detected "
"loop failure",
msg->Data[0] & 0xff);
break;
default:
mpt_prt(mpt, "\tDevice %02x requests that "
"device %02x reset itself",
msg->Data[0] & 0xff,
(msg->Data[0] >> 8) & 0xff);
break;
}
break;
case 0x02:
mpt_prt(mpt, "Port %d: FC Link Event: LPE(%02x,%02x) "
"(Loop Port Enable)",
(msg->Data[1] >> 8) & 0xff,
(msg->Data[0] >> 8) & 0xff,
(msg->Data[0] ) & 0xff);
break;
case 0x03:
mpt_prt(mpt, "Port %d: FC Link Event: LPB(%02x,%02x) "
"(Loop Port Bypass)",
(msg->Data[1] >> 8) & 0xff,
(msg->Data[0] >> 8) & 0xff,
(msg->Data[0] ) & 0xff);
break;
default:
mpt_prt(mpt, "Port %d: FC Link Event: "
"Unknown event (%02x %02x %02x)",
(msg->Data[1] >> 8) & 0xff,
(msg->Data[0] >> 16) & 0xff,
(msg->Data[0] >> 8) & 0xff,
(msg->Data[0] ) & 0xff);
break;
}
break;
case MPI_EVENT_LOGOUT:
mpt_prt(mpt, "Port %d: FC Logout: N_PortID: %02x",
(msg->Data[1] >> 8) & 0xff, msg->Data[0]);
break;
case MPI_EVENT_EVENT_CHANGE:
/*
* This is just an acknowledgement of our
* mpt_send_event_request().
*/
break;
default:
mpt_prt(mpt, "Unknown async event: 0x%x", msg->Event);
break;
}
if (msg->AckRequired) {
MSG_EVENT_ACK *ackp;
request_t *req;
if ((req = mpt_get_request(mpt)) == NULL) {
/* XXX XXX XXX XXXJRT */
panic("mpt_event_notify_reply: unable to allocate "
"request structure");
}
ackp = (MSG_EVENT_ACK *) req->req_vbuf;
bzero(ackp, sizeof(*ackp));
ackp->Function = MPI_FUNCTION_EVENT_ACK;
ackp->Event = msg->Event;
ackp->EventContext = msg->EventContext;
ackp->MsgContext = req->index | 0x80000000;
mpt_check_doorbell(mpt);
mpt_send_cmd(mpt, req);
}
}
void
mpt_check_xfer_settings(mpt_softc_t *mpt, struct scsi_xfer *xs, MSG_SCSI_IO_REQUEST *mpt_req)
{
if (mpt->is_fc) {
/*
* SCSI transport settings don't make any sense for
* Fibre Channel; silently ignore the request.
*/
return;
}
/*
* XXX never do these commands with tags. Should really be
* in a higher layer.
*/
if (xs->cmd->opcode == INQUIRY ||
xs->cmd->opcode == TEST_UNIT_READY ||
xs->cmd->opcode == REQUEST_SENSE)
return;
/* Set the queue behavior. */
if (mpt->is_fc || (mpt->mpt_tag_enable & (1 << xs->sc_link->target))) {
mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
} else {
mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
}
}
/*****************************************************************************
* SCSI interface routines
*****************************************************************************/
int
mpt_action(struct scsi_xfer *xfer)
{
mpt_softc_t *mpt = (void *) xfer->sc_link->adapter_softc;
int ret;
ret = mpt_run_xfer(mpt, xfer);
return ret;
}
void
mpt_minphys(struct buf *bp)
{
/*
* Subtract one from the SGL limit, since we need an extra one to handle
* an non-page-aligned transfer.
*/
#define MPT_MAX_XFER ((MPT_SGL_MAX - 1) * PAGE_SIZE)
if (bp->b_bcount > MPT_MAX_XFER)
bp->b_bcount = MPT_MAX_XFER;
minphys(bp);
}
/*
* Allocate DMA resources for FW image
*
* img_sz : size of image
* maxsgl : maximum number of DMA segments
*/
int
mpt_alloc_fw_mem(mpt_softc_t *mpt, uint32_t img_sz, int maxsgl)
{
int error;
error = bus_dmamap_create(mpt->sc_dmat, img_sz, maxsgl, img_sz,
0, 0, &mpt->fw_dmap);
if (error) {
mpt_prt(mpt, "unable to create request DMA map, error = %d",
error);
goto fw_fail0;
}
error = bus_dmamem_alloc(mpt->sc_dmat, img_sz, PAGE_SIZE, 0,
&mpt->fw_seg, 1, &mpt->fw_rseg, 0);
if (error) {
mpt_prt(mpt, "unable to allocate fw memory, error = %d", error);
goto fw_fail1;
}
error = bus_dmamem_map(mpt->sc_dmat, &mpt->fw_seg, mpt->fw_rseg, img_sz,
(caddr_t *)&mpt->fw, BUS_DMA_COHERENT);
if (error) {
mpt_prt(mpt, "unable to map fw area, error = %d", error);
goto fw_fail2;
}
error = bus_dmamap_load(mpt->sc_dmat, mpt->fw_dmap, mpt->fw, img_sz,
NULL, 0);
if (error) {
mpt_prt(mpt, "unable to load request DMA map, error = %d", error);
goto fw_fail3;
}
return(error);
fw_fail3:
bus_dmamem_unmap(mpt->sc_dmat, (caddr_t)mpt->fw, img_sz);
fw_fail2:
bus_dmamem_free(mpt->sc_dmat, &mpt->fw_seg, mpt->fw_rseg);
fw_fail1:
bus_dmamap_destroy(mpt->sc_dmat, mpt->fw_dmap);
fw_fail0:
mpt->fw = NULL;
return (error);
}
void
mpt_free_fw_mem(mpt_softc_t *mpt)
{
bus_dmamap_unload(mpt->sc_dmat, mpt->fw_dmap);
bus_dmamem_unmap(mpt->sc_dmat, (caddr_t)mpt->fw, mpt->fw_image_size);
bus_dmamem_free(mpt->sc_dmat, &mpt->fw_seg, mpt->fw_rseg);
bus_dmamap_destroy(mpt->sc_dmat, mpt->fw_dmap);
}
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