static void
mpt_restart(mpt_softc_t *mpt, request_t *req0)
{
int i, s, nreq;
request_t *req;
struct scsipi_xfer *xs;
/* first, reset the IOC, leaving stopped so all requests are idle */
if (mpt_soft_reset(mpt) != MPT_OK) {
mpt_prt(mpt, "soft reset failed");
/*
* Don't try a hard reset since this mangles the PCI
* configuration registers.
*/
return;
}
/* Freeze the channel so scsipi doesn't queue more commands. */
scsipi_channel_freeze(&mpt->sc_channel, 1);
/* Return all pending requests to scsipi and de-allocate them. */
s = splbio();
nreq = 0;
for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
req = &mpt->request_pool[i];
xs = req->xfer;
if (xs != NULL) {
if (xs->datalen != 0)
bus_dmamap_unload(mpt->sc_dmat, req->dmap);
req->xfer = NULL;
callout_stop(&xs->xs_callout);
if (req != req0) {
nreq++;
xs->error = XS_REQUEUE;
}
scsipi_done(xs);
/*
* Don't need to mpt_free_request() since mpt_init()
* below will free all requests anyway.
*/
mpt_free_request(mpt, req);
}
}
splx(s);
if (nreq > 0)
mpt_prt(mpt, "re-queued %d requests", nreq);
/* Re-initialize the IOC (which restarts it). */
if (mpt_init(mpt, MPT_DB_INIT_HOST) == 0)
mpt_prt(mpt, "restart succeeded");
/* else error message already printed */
/* Thaw the channel, causing scsipi to re-queue the commands. */
scsipi_channel_thaw(&mpt->sc_channel, 1);
}
static void
mpt_link_peer(struct mpt_softc *mpt)
{
struct mpt_softc *mpt2;
if (mpt->unit == 0) {
return;
}
/*
* XXX: depends on probe order
*/
mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
if (mpt2 == NULL) {
return;
}
if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
return;
}
if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
return;
}
mpt->mpt2 = mpt2;
mpt2->mpt2 = mpt;
if (mpt->verbose >= MPT_PRT_DEBUG) {
mpt_prt(mpt, "linking with peer (mpt%d)\n",
device_get_unit(mpt2->dev));
}
}
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);
reply = mpt_pop_reply_queue(mpt);
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_dump_request(struct mpt_softc *mpt, request_t *req)
{
uint32_t *pReq = req->req_vbuf;
int o;
mpt_prt(mpt, "Send Request %d (%jx):",
req->index, (uintmax_t) req->req_pbuf);
for (o = 0; o < mpt->ioc_facts.RequestFrameSize; o++) {
if ((o & 0x7) == 0) {
mpt_prtc(mpt, "\n");
mpt_prt(mpt, " ");
}
mpt_prtc(mpt, " %08x", pReq[o]);
}
mpt_prtc(mpt, "\n");
}
/*
* This routine is called if the 9x9 does not return completion status
* for a command after a CAM specified time.
*/
static void
mpttimeout(void *arg)
{
request_t *req;
union ccb *ccb = arg;
u_int32_t oseq;
mpt_softc_t *mpt;
mpt = ccb->ccb_h.ccb_mpt_ptr;
MPT_LOCK(mpt);
req = ccb->ccb_h.ccb_req_ptr;
oseq = req->sequence;
mpt->timeouts++;
if (mpt_intr(mpt)) {
if (req->sequence != oseq) {
mpt_prt(mpt, "bullet missed in timeout");
MPT_UNLOCK(mpt);
return;
}
mpt_prt(mpt, "bullet U-turned in timeout: got us");
}
mpt_prt(mpt,
"time out on request index = 0x%02x sequence = 0x%08x",
req->index, req->sequence);
mpt_check_doorbell(mpt);
mpt_prt(mpt, "Status %08x; Mask %08x; Doorbell %08x",
mpt_read(mpt, MPT_OFFSET_INTR_STATUS),
mpt_read(mpt, MPT_OFFSET_INTR_MASK),
mpt_read(mpt, MPT_OFFSET_DOORBELL) );
printf("request state %s\n", mpt_req_state(req->debug));
if (ccb != req->ccb) {
printf("time out: ccb %p != req->ccb %p\n",
ccb,req->ccb);
}
mpt_print_scsi_io_request((MSG_SCSI_IO_REQUEST *)req->req_vbuf);
req->debug = REQ_TIMEOUT;
req->ccb = NULL;
req->link.sle_next = (void *) mpt;
(void) timeout(mpttimeout2, (caddr_t)req, hz / 10);
ccb->ccb_h.status = CAM_CMD_TIMEOUT;
ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
mpt->outofbeer = 0;
MPTLOCK_2_CAMLOCK(mpt);
xpt_done(ccb);
CAMLOCK_2_MPTLOCK(mpt);
MPT_UNLOCK(mpt);
}
static void
mpt_timeout(void *arg)
{
request_t *req = arg;
struct scsipi_xfer *xs = req->xfer;
struct scsipi_periph *periph = xs->xs_periph;
mpt_softc_t *mpt = DEV_TO_MPT(
periph->periph_channel->chan_adapter->adapt_dev);
uint32_t oseq;
int s;
scsipi_printaddr(periph);
printf("command timeout\n");
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);
/* XXX WHAT IF THE IOC IS STILL USING IT?? */
req->xfer = NULL;
mpt_free_request(mpt, req);
xs->error = XS_TIMEOUT;
scsipi_done(xs);
splx(s);
}
void
mpt_dump_request(struct mpt_softc *mpt, request_t *req)
{
uint32_t *pReq = req->req_vbuf;
int o;
#if __FreeBSD_version >= 500000
mpt_prt(mpt, "Send Request %d (%jx):",
req->index, (uintmax_t) req->req_pbuf);
#else
mpt_prt(mpt, "Send Request %d (%llx):",
req->index, (unsigned long long) req->req_pbuf);
#endif
for (o = 0; o < mpt->ioc_facts.RequestFrameSize; o++) {
if ((o & 0x7) == 0) {
mpt_prtc(mpt, "\n");
mpt_prt(mpt, " ");
}
mpt_prtc(mpt, " %08x", pReq[o]);
}
mpt_prtc(mpt, "\n");
}
void
mpt_dump_data(struct mpt_softc *mpt, const char *msg, void *addr, int len)
{
int offset;
uint8_t *cp = addr;
mpt_prt(mpt, "%s:", msg);
for (offset = 0; offset < len; offset++) {
if ((offset & 0xf) == 0) {
mpt_prtc(mpt, "\n");
}
mpt_prtc(mpt, " %02x", cp[offset]);
}
mpt_prtc(mpt, "\n");
}
static int
mpt_drain_queue(mpt_softc_t *mpt)
{
int nrepl = 0;
uint32_t reply;
reply = mpt_pop_reply_queue(mpt);
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);
}
static void
mpt_run_xfer(mpt_softc_t *mpt, struct scsipi_xfer *xs)
{
struct scsipi_periph *periph = xs->xs_periph;
request_t *req;
MSG_SCSI_IO_REQUEST *mpt_req;
int error, s;
s = splbio();
req = mpt_get_request(mpt);
if (__predict_false(req == NULL)) {
/* This should happen very infrequently. */
xs->error = XS_RESOURCE_SHORTAGE;
scsipi_done(xs);
splx(s);
return;
}
splx(s);
/* Link the req and the scsipi_xfer. */
req->xfer = xs;
/* Now we build the command for the IOC */
mpt_req = req->req_vbuf;
memset(mpt_req, 0, sizeof(*mpt_req));
mpt_req->Function = MPI_FUNCTION_SCSI_IO_REQUEST;
mpt_req->Bus = mpt->bus;
mpt_req->SenseBufferLength =
(sizeof(xs->sense.scsi_sense) < MPT_SENSE_SIZE) ?
sizeof(xs->sense.scsi_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 = htole32(req->index);
/* Which physical device to do the I/O on. */
mpt_req->TargetID = periph->periph_target;
mpt_req->LUN[1] = periph->periph_lun;
/* Set the direction of the transfer. */
if (xs->xs_control & XS_CTL_DATA_IN)
mpt_req->Control = MPI_SCSIIO_CONTROL_READ;
else if (xs->xs_control & XS_CTL_DATA_OUT)
mpt_req->Control = MPI_SCSIIO_CONTROL_WRITE;
else
mpt_req->Control = MPI_SCSIIO_CONTROL_NODATATRANSFER;
/* Set the queue behavior. */
if (__predict_true((!mpt->is_scsi) ||
(mpt->mpt_tag_enable &
(1 << periph->periph_target)))) {
switch (XS_CTL_TAGTYPE(xs)) {
case XS_CTL_HEAD_TAG:
mpt_req->Control |= MPI_SCSIIO_CONTROL_HEADOFQ;
break;
#if 0 /* XXX */
case XS_CTL_ACA_TAG:
mpt_req->Control |= MPI_SCSIIO_CONTROL_ACAQ;
break;
#endif
case XS_CTL_ORDERED_TAG:
mpt_req->Control |= MPI_SCSIIO_CONTROL_ORDEREDQ;
break;
case XS_CTL_SIMPLE_TAG:
mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
break;
default:
if (mpt->is_scsi)
mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
else
mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ;
break;
}
} else
mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED;
if (__predict_false(mpt->is_scsi &&
(mpt->mpt_disc_enable &
(1 << periph->periph_target)) == 0))
mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT;
mpt_req->Control = htole32(mpt_req->Control);
/* Copy the SCSI command block into place. */
memcpy(mpt_req->CDB, xs->cmd, xs->cmdlen);
mpt_req->CDBLength = xs->cmdlen;
mpt_req->DataLength = htole32(xs->datalen);
mpt_req->SenseBufferLowAddr = htole32(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->xs_control & XS_CTL_NOSLEEP) ? BUS_DMA_NOWAIT
: BUS_DMA_WAITOK) |
BUS_DMA_STREAMING |
((xs->xs_control & XS_CTL_DATA_IN) ? BUS_DMA_READ
: BUS_DMA_WRITE));
switch (error) {
case 0:
break;
case ENOMEM:
case EAGAIN:
xs->error = XS_RESOURCE_SHORTAGE;
goto out_bad;
default:
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "error %d loading DMA map", error);
out_bad:
s = splbio();
mpt_free_request(mpt, req);
scsipi_done(xs);
splx(s);
return;
}
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;
flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
if (xs->xs_control & XS_CTL_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;
memset(se, 0, sizeof(*se));
se->Address =
htole32(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);
se->FlagsLength = htole32(se->FlagsLength);
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 = htole16(MPT_NSGL(mpt)
* sizeof(SGE_SIMPLE32));
} else {
static void
mpt_done(mpt_softc_t *mpt, uint32_t reply)
{
struct scsipi_xfer *xs = NULL;
struct scsipi_periph *periph;
int index;
request_t *req;
MSG_REQUEST_HEADER *mpt_req;
MSG_SCSI_IO_REPLY *mpt_reply;
int restart = 0; /* nonzero if we need to restart the IOC*/
if (__predict_true((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_reply != NULL) {
if (mpt->verbose > 1) {
uint32_t *pReply = (uint32_t *) mpt_reply;
mpt_prt(mpt, "Address Reply (index %u):",
le32toh(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 = le32toh(mpt_reply->MsgContext);
} else
index = reply & MPT_CONTEXT_MASK;
}
/*
* Address reply with MessageContext high bit set.
* This is most likely a notify message, so we try
* to process it, then free it.
*/
if (__predict_false((index & 0x80000000) != 0)) {
if (mpt_reply != NULL)
mpt_ctlop(mpt, mpt_reply, reply);
else
mpt_prt(mpt, "%s: index 0x%x, NULL reply", __func__,
index);
return;
}
/* Did we end up with a valid index into the table? */
if (__predict_false(index < 0 || index >= MPT_MAX_REQUESTS(mpt))) {
mpt_prt(mpt, "%s: invalid index (0x%x) in reply", __func__,
index);
return;
}
req = &mpt->request_pool[index];
/* Make sure memory hasn't been trashed. */
if (__predict_false(req->index != index)) {
mpt_prt(mpt, "%s: corrupted request_t (0x%x)", __func__,
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 (__predict_false(mpt_req->Function == MPI_FUNCTION_SCSI_TASK_MGMT)) {
if (mpt->verbose > 1)
mpt_prt(mpt, "%s: TASK MGMT", __func__);
KASSERT(req == mpt->mngt_req);
mpt->mngt_req = NULL;
goto done;
}
if (__predict_false(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 (__predict_false(mpt_req->Function !=
MPI_FUNCTION_SCSI_IO_REQUEST)) {
if (mpt->verbose > 1)
mpt_prt(mpt, "%s: unknown Function 0x%x (0x%x)",
__func__, mpt_req->Function, index);
goto done;
}
/* Recover scsipi_xfer from the request structure. */
xs = req->xfer;
/* Can't have a SCSI command without a scsipi_xfer. */
if (__predict_false(xs == NULL)) {
mpt_prt(mpt,
"%s: no scsipi_xfer, index = 0x%x, seq = 0x%08x", __func__,
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;
}
callout_stop(&xs->xs_callout);
periph = xs->xs_periph;
/*
* If we were a data transfer, unload the map that described
* the data buffer.
*/
if (__predict_true(xs->datalen != 0)) {
bus_dmamap_sync(mpt->sc_dmat, req->dmap, 0,
req->dmap->dm_mapsize,
(xs->xs_control & XS_CTL_DATA_IN) ? BUS_DMASYNC_POSTREAD
: BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(mpt->sc_dmat, req->dmap);
}
if (__predict_true(mpt_reply == NULL)) {
/*
* Context reply; report that the command was
* successful!
*
* Also report the xfer mode, if necessary.
*/
if (__predict_false(mpt->mpt_report_xfer_mode != 0)) {
if ((mpt->mpt_report_xfer_mode &
(1 << periph->periph_target)) != 0)
mpt_get_xfer_mode(mpt, periph);
}
xs->error = XS_NOERROR;
xs->status = SCSI_OK;
xs->resid = 0;
mpt_free_request(mpt, req);
scsipi_done(xs);
return;
}
xs->status = mpt_reply->SCSIStatus;
switch (le16toh(mpt_reply->IOCStatus) & MPI_IOCSTATUS_MASK) {
case MPI_IOCSTATUS_SCSI_DATA_OVERRUN:
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "%s: IOC overrun!", __func__);
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 - le32toh(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:
/* Report the xfer mode, if necessary. */
if ((mpt->mpt_report_xfer_mode &
(1 << periph->periph_target)) != 0)
mpt_get_xfer_mode(mpt, periph);
xs->resid = 0;
break;
case SCSI_CHECK:
xs->error = XS_SENSE;
break;
case SCSI_BUSY:
case SCSI_QUEUE_FULL:
xs->error = XS_BUSY;
break;
default:
scsipi_printaddr(periph);
printf("invalid status code %d\n", xs->status);
xs->error = XS_DRIVER_STUFFUP;
break;
}
break;
case MPI_IOCSTATUS_BUSY:
case MPI_IOCSTATUS_INSUFFICIENT_RESOURCES:
xs->error = XS_RESOURCE_SHORTAGE;
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;
mpt_prt(mpt, "%s: IOC SCSI residual mismatch!", __func__);
restart = 1;
break;
case MPI_IOCSTATUS_SCSI_TASK_TERMINATED:
/* XXX What should we do here? */
mpt_prt(mpt, "%s: IOC SCSI task terminated!", __func__);
restart = 1;
break;
case MPI_IOCSTATUS_SCSI_TASK_MGMT_FAILED:
/* XXX */
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "%s: IOC SCSI task failed!", __func__);
restart = 1;
break;
case MPI_IOCSTATUS_SCSI_IOC_TERMINATED:
/* XXX */
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "%s: IOC task terminated!", __func__);
restart = 1;
break;
case MPI_IOCSTATUS_SCSI_EXT_TERMINATED:
/* XXX This is a bus-reset */
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "%s: IOC SCSI bus reset!", __func__);
restart = 1;
break;
case MPI_IOCSTATUS_SCSI_PROTOCOL_ERROR:
/*
* FreeBSD and Linux indicate this is a phase error between
* the IOC and the drive itself. When this happens, the IOC
* becomes unhappy and stops processing all transactions.
* Call mpt_timeout which knows how to get the IOC back
* on its feet.
*/
mpt_prt(mpt, "%s: IOC indicates protocol error -- "
"recovering...", __func__);
xs->error = XS_TIMEOUT;
restart = 1;
break;
default:
/* XXX unrecognized HBA error */
xs->error = XS_DRIVER_STUFFUP;
mpt_prt(mpt, "%s: IOC returned unknown code: 0x%x", __func__,
le16toh(mpt_reply->IOCStatus));
restart = 1;
break;
}
if (mpt_reply != NULL) {
if (mpt_reply->SCSIState & MPI_SCSI_STATE_AUTOSENSE_VALID) {
memcpy(&xs->sense.scsi_sense, req->sense_vbuf,
sizeof(xs->sense.scsi_sense));
} else if (mpt_reply->SCSIState &
MPI_SCSI_STATE_AUTOSENSE_FAILED) {
/*
* This will cause the scsipi layer to issue
* a REQUEST SENSE.
*/
if (xs->status == SCSI_CHECK)
xs->error = XS_BUSY;
}
}
done:
if (mpt_reply != NULL && le16toh(mpt_reply->IOCStatus) &
MPI_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) {
mpt_prt(mpt, "%s: IOC has error - logging...\n", __func__);
mpt_ctlop(mpt, mpt_reply, reply);
}
/* If IOC done with this request, 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)
scsipi_done(xs);
if (restart) {
mpt_prt(mpt, "%s: IOC fatal error: restarting...", __func__);
mpt_restart(mpt, NULL);
}
}
static void
mpt_timeout(void *arg)
{
request_t *req = arg;
struct scsipi_xfer *xs;
struct scsipi_periph *periph;
mpt_softc_t *mpt;
uint32_t oseq;
int s, nrepl = 0;
if (req->xfer == NULL) {
printf("mpt_timeout: NULL xfer for request index 0x%x, sequenc 0x%x\n",
req->index, req->sequence);
return;
}
xs = req->xfer;
periph = xs->xs_periph;
mpt = (void *) periph->periph_channel->chan_adapter->adapt_dev;
scsipi_printaddr(periph);
printf("command timeout\n");
s = splbio();
oseq = req->sequence;
mpt->timeouts++;
if (mpt_intr(mpt)) {
if (req->sequence != oseq) {
mpt->success++;
mpt_prt(mpt, "recovered from command timeout");
splx(s);
return;
}
}
/*
* Ensure the IOC is really done giving us data since it appears it can
* sometimes fail to give us interrupts under heavy load.
*/
nrepl = mpt_drain_queue(mpt);
if (nrepl ) {
mpt_prt(mpt, "mpt_timeout: recovered %d commands",nrepl);
}
if (req->sequence != oseq) {
mpt->success++;
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);
xs->error = XS_TIMEOUT;
splx(s);
mpt_restart(mpt, req);
}
static int
mpt_dma_mem_alloc(struct mpt_softc *mpt)
{
size_t len;
struct mpt_map_info mi;
/* Check if we alreay have allocated the reply memory */
if (mpt->reply_phys != 0) {
return 0;
}
len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
#ifdef RELENG_4
mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
if (mpt->request_pool == NULL) {
mpt_prt(mpt, "cannot allocate request pool\n");
return (1);
}
memset(mpt->request_pool, 0, len);
#else
mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
if (mpt->request_pool == NULL) {
mpt_prt(mpt, "cannot allocate request pool\n");
return (1);
}
#endif
/*
* Create a parent dma tag for this device.
*
* Align at byte boundaries,
* Limit to 32-bit addressing for request/reply queues.
*/
if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev),
/*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR,
/*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
/*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0,
&mpt->parent_dmat) != 0) {
mpt_prt(mpt, "cannot create parent dma tag\n");
return (1);
}
/* Create a child tag for reply buffers */
if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
&mpt->reply_dmat) != 0) {
mpt_prt(mpt, "cannot create a dma tag for replies\n");
return (1);
}
/* Allocate some DMA accessible memory for replies */
if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n",
(u_long) (2 * PAGE_SIZE));
return (1);
}
mi.mpt = mpt;
mi.error = 0;
/* Load and lock it into "bus space" */
bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
2 * PAGE_SIZE, mpt_map_rquest, &mi, 0);
if (mi.error) {
mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n",
mi.error);
return (1);
}
mpt->reply_phys = mi.phys;
return (0);
}
static int
mpt_pci_attach(device_t dev)
{
struct mpt_softc *mpt;
int iqd;
uint32_t data, cmd;
int mpt_io_bar, mpt_mem_bar;
mpt = (struct mpt_softc*)device_get_softc(dev);
switch (pci_get_device(dev)) {
case MPI_MANUFACTPAGE_DEVICEID_FC909_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC909:
case MPI_MANUFACTPAGE_DEVICEID_FC919:
case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC929:
case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC929X:
case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC919X:
case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC949E:
case MPI_MANUFACTPAGE_DEVICEID_FC949X:
mpt->is_fc = 1;
break;
case MPI_MANUFACTPAGE_DEVID_SAS1078:
case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB:
mpt->is_1078 = 1;
/* FALLTHROUGH */
case MPI_MANUFACTPAGE_DEVID_SAS1064:
case MPI_MANUFACTPAGE_DEVID_SAS1064A:
case MPI_MANUFACTPAGE_DEVID_SAS1064E:
case MPI_MANUFACTPAGE_DEVID_SAS1066:
case MPI_MANUFACTPAGE_DEVID_SAS1066E:
case MPI_MANUFACTPAGE_DEVID_SAS1068:
case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB:
case MPI_MANUFACTPAGE_DEVID_SAS1068E:
case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB:
mpt->is_sas = 1;
break;
default:
mpt->is_spi = 1;
break;
}
mpt->dev = dev;
mpt->unit = device_get_unit(dev);
mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
mpt->verbose = MPT_PRT_NONE;
mpt->role = MPT_ROLE_NONE;
mpt->mpt_ini_id = MPT_INI_ID_NONE;
#ifdef __sparc64__
if (mpt->is_spi)
mpt->mpt_ini_id = OF_getscsinitid(dev);
#endif
mpt_set_options(mpt);
if (mpt->verbose == MPT_PRT_NONE) {
mpt->verbose = MPT_PRT_WARN;
/* Print INFO level (if any) if bootverbose is set */
mpt->verbose += (bootverbose != 0)? 1 : 0;
}
/* Make sure memory access decoders are enabled */
cmd = pci_read_config(dev, PCIR_COMMAND, 2);
if ((cmd & PCIM_CMD_MEMEN) == 0) {
device_printf(dev, "Memory accesses disabled");
return (ENXIO);
}
/*
* Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
*/
cmd |=
PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
pci_write_config(dev, PCIR_COMMAND, cmd, 2);
/*
* Make sure we've disabled the ROM.
*/
data = pci_read_config(dev, PCIR_BIOS, 4);
data &= ~PCIM_BIOS_ENABLE;
pci_write_config(dev, PCIR_BIOS, data, 4);
/*
* Is this part a dual?
* If so, link with our partner (around yet)
*/
switch (pci_get_device(dev)) {
case MPI_MANUFACTPAGE_DEVICEID_FC929:
case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB:
case MPI_MANUFACTPAGE_DEVICEID_FC949E:
case MPI_MANUFACTPAGE_DEVICEID_FC949X:
case MPI_MANUFACTPAGE_DEVID_53C1030:
case MPI_MANUFACTPAGE_DEVID_53C1030ZC:
mpt_link_peer(mpt);
break;
default:
break;
}
/*
* Figure out which are the I/O and MEM Bars
*/
data = pci_read_config(dev, PCIR_BAR(0), 4);
if (PCI_BAR_IO(data)) {
/* BAR0 is IO, BAR1 is memory */
mpt_io_bar = 0;
mpt_mem_bar = 1;
} else {
/* BAR0 is memory, BAR1 is IO */
mpt_mem_bar = 0;
mpt_io_bar = 1;
}
/*
* Set up register access. PIO mode is required for
* certain reset operations (but must be disabled for
* some cards otherwise).
*/
mpt_io_bar = PCIR_BAR(mpt_io_bar);
mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
&mpt_io_bar, RF_ACTIVE);
if (mpt->pci_pio_reg == NULL) {
if (bootverbose) {
device_printf(dev,
"unable to map registers in PIO mode\n");
}
} else {
mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
}
mpt_mem_bar = PCIR_BAR(mpt_mem_bar);
mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&mpt_mem_bar, RF_ACTIVE);
if (mpt->pci_reg == NULL) {
if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) {
device_printf(dev,
"Unable to memory map registers.\n");
}
if (mpt->is_sas || mpt->pci_pio_reg == NULL) {
device_printf(dev, "Giving Up.\n");
goto bad;
}
if (bootverbose) {
device_printf(dev, "Falling back to PIO mode.\n");
}
mpt->pci_st = mpt->pci_pio_st;
mpt->pci_sh = mpt->pci_pio_sh;
} else {
mpt->pci_st = rman_get_bustag(mpt->pci_reg);
mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
}
/* Get a handle to the interrupt */
iqd = 0;
if (mpt->msi_enable) {
/*
* First try to alloc an MSI-X message. If that
* fails, then try to alloc an MSI message instead.
*/
if (pci_msix_count(dev) == 1) {
mpt->pci_msi_count = 1;
if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) {
iqd = 1;
} else {
mpt->pci_msi_count = 0;
}
}
if (iqd == 0 && pci_msi_count(dev) == 1) {
mpt->pci_msi_count = 1;
if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) {
iqd = 1;
} else {
mpt->pci_msi_count = 0;
}
}
}
mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
RF_ACTIVE | (mpt->pci_msi_count ? 0 : RF_SHAREABLE));
if (mpt->pci_irq == NULL) {
device_printf(dev, "could not allocate interrupt\n");
goto bad;
}
MPT_LOCK_SETUP(mpt);
/* Disable interrupts at the part */
mpt_disable_ints(mpt);
/* Register the interrupt handler */
if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr,
mpt, &mpt->ih)) {
device_printf(dev, "could not setup interrupt\n");
goto bad;
}
/* Allocate dma memory */
if (mpt_dma_mem_alloc(mpt)) {
mpt_prt(mpt, "Could not allocate DMA memory\n");
goto bad;
}
#if 0
/*
* Save the PCI config register values
*
* Hard resets are known to screw up the BAR for diagnostic
* memory accesses (Mem1).
*
* Using Mem1 is known to make the chip stop responding to
* configuration space transfers, so we need to save it now
*/
mpt_read_config_regs(mpt);
#endif
/*
* Disable PIO until we need it
*/
if (mpt->is_sas) {
pci_disable_io(dev, SYS_RES_IOPORT);
}
/* Initialize the hardware */
if (mpt->disabled == 0) {
if (mpt_attach(mpt) != 0) {
goto bad;
}
} else {
mpt_prt(mpt, "device disabled at user request\n");
goto bad;
}
mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown,
dev, SHUTDOWN_PRI_DEFAULT);
if (mpt->eh == NULL) {
mpt_prt(mpt, "shutdown event registration failed\n");
(void) mpt_detach(mpt);
goto bad;
}
return (0);
bad:
mpt_dma_mem_free(mpt);
mpt_free_bus_resources(mpt);
mpt_unlink_peer(mpt);
MPT_LOCK_DESTROY(mpt);
/*
* but return zero to preserve unit numbering
*/
return (0);
}
/*
* Callback routine from "bus_dmamap_load" or in simple case called directly.
*
* Takes a list of physical segments and builds the SGL for SCSI IO command
* and forwards the commard to the IOC after one last check that CAM has not
* aborted the transaction.
*/
static void
mpt_execute_req(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
{
request_t *req;
union ccb *ccb;
mpt_softc_t *mpt;
MSG_SCSI_IO_REQUEST *mpt_req;
SGE_SIMPLE32 *se;
req = (request_t *)arg;
ccb = req->ccb;
mpt = ccb->ccb_h.ccb_mpt_ptr;
req = ccb->ccb_h.ccb_req_ptr;
mpt_req = req->req_vbuf;
if (error == 0 && nseg > MPT_SGL_MAX) {
error = EFBIG;
}
if (error != 0) {
if (error != EFBIG)
mpt_prt(mpt, "bus_dmamap_load returned %d", error);
if (ccb->ccb_h.status == CAM_REQ_INPROG) {
xpt_freeze_devq(ccb->ccb_h.path, 1);
ccb->ccb_h.status = CAM_DEV_QFRZN;
if (error == EFBIG)
ccb->ccb_h.status |= CAM_REQ_TOO_BIG;
else
ccb->ccb_h.status |= CAM_REQ_CMP_ERR;
}
ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
xpt_done(ccb);
CAMLOCK_2_MPTLOCK(mpt);
mpt_free_request(mpt, req);
MPTLOCK_2_CAMLOCK(mpt);
return;
}
if (nseg > MPT_NSGL_FIRST(mpt)) {
int i, nleft = nseg;
u_int32_t flags;
bus_dmasync_op_t op;
SGE_CHAIN32 *ce;
mpt_req->DataLength = ccb->csio.dxfer_len;
flags = MPI_SGE_FLAGS_SIMPLE_ELEMENT;
if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_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++, dm_segs++) {
u_int32_t tf;
bzero(se, sizeof (*se));
se->Address = dm_segs->ds_addr;
MPI_pSGE_SET_LENGTH(se, dm_segs->ds_len);
tf = flags;
if (i == MPT_NSGL_FIRST(mpt) - 2) {
tf |= MPI_SGE_FLAGS_LAST_ELEMENT;
}
MPI_pSGE_SET_FLAGS(se, tf);
nleft -= 1;
}
/*
* 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 point 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;
} else {
