/* $NetBSD: mpt_netbsd.c,v 1.7 2003/07/14 15:47:11 lukem Exp $ */ /* * 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_netbsd.c: * * NetBSD-specific routines for LSI Fusion adapters. Includes some * bus_dma glue, and SCSIPI glue. * * Adapted from the FreeBSD "mpt" driver by Jason R. Thorpe for * Wasabi Systems, Inc. */ #include __KERNEL_RCSID(0, "$NetBSD: mpt_netbsd.c,v 1.7 2003/07/14 15:47:11 lukem Exp $"); #include /* pulls in all headers */ #include /* for mpt_prt() */ static int mpt_poll(mpt_softc_t *, struct scsipi_xfer *, int); static void mpt_timeout(void *); static void mpt_done(mpt_softc_t *, uint32_t); static void mpt_run_xfer(mpt_softc_t *, struct scsipi_xfer *); static void mpt_set_xfer_mode(mpt_softc_t *, struct scsipi_xfer_mode *); static void mpt_get_xfer_mode(mpt_softc_t *, struct scsipi_periph *); static void mpt_ctlop(mpt_softc_t *, void *vmsg, uint32_t); static void mpt_event_notify_reply(mpt_softc_t *, MSG_EVENT_NOTIFY_REPLY *); static void mpt_scsipi_request(struct scsipi_channel *, scsipi_adapter_req_t, void *); static void mpt_minphys(struct buf *); void mpt_scsipi_attach(mpt_softc_t *mpt) { struct scsipi_adapter *adapt = &mpt->sc_adapter; struct scsipi_channel *chan = &mpt->sc_channel; int maxq; mpt->bus = 0; /* XXX ?? */ maxq = (mpt->mpt_global_credits < MPT_MAX_REQUESTS(mpt)) ? mpt->mpt_global_credits : MPT_MAX_REQUESTS(mpt); /* Fill in the scsipi_adapter. */ memset(adapt, 0, sizeof(*adapt)); adapt->adapt_dev = &mpt->sc_dev; adapt->adapt_nchannels = 1; adapt->adapt_openings = maxq; adapt->adapt_max_periph = maxq; adapt->adapt_request = mpt_scsipi_request; adapt->adapt_minphys = mpt_minphys; /* Fill in the scsipi_channel. */ memset(chan, 0, sizeof(*chan)); chan->chan_adapter = adapt; chan->chan_bustype = &scsi_bustype; chan->chan_channel = 0; chan->chan_flags = 0; chan->chan_nluns = 8; if (mpt->is_fc) { chan->chan_ntargets = 256; chan->chan_id = 256; } else { chan->chan_ntargets = 16; chan->chan_id = mpt->mpt_ini_id; } (void) config_found(&mpt->sc_dev, &mpt->sc_channel, scsiprint); } 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 | M_ZERO); if (mpt->request_pool == NULL) { aprint_error("%s: unable to allocate request pool\n", mpt->sc_dev.dv_xname); return (ENOMEM); } /* * 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) { aprint_error("%s: unable to allocate reply area, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to map reply area, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to create reply DMA map, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to load reply DMA map, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to allocate request area, " "error = %d\n", mpt->sc_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) { aprint_error("%s: unable to map request area, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to create request DMA map, " "error = %d\n", mpt->sc_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) { aprint_error("%s: unable to load request DMA map, error = %d\n", mpt->sc_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) { aprint_error("%s: unable to create req %d DMA map, " "error = %d\n", mpt->sc_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); 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_prt(mpt_softc_t *mpt, const char *fmt, ...) { va_list ap; printf("%s: ", mpt->sc_dev.dv_xname); va_start(ap, fmt); vprintf(fmt, ap); va_end(ap); printf("\n"); } static int mpt_poll(mpt_softc_t *mpt, struct scsipi_xfer *xs, int count) { /* Timeouts are in msec, so we loop in 1000usec cycles */ while (count) { mpt_intr(mpt); if (xs->xs_status & XS_STS_DONE) return (0); delay(1000); /* only happens in boot, so ok */ count--; } return (1); } 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 = (void *) 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); } 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; 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->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 (__predict_false((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 (__predict_false(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 (__predict_false(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 (__predict_false(mpt_req->Function == MPI_FUNCTION_SCSI_TASK_MGMT)) { if (mpt->verbose > 1) mpt_prt(mpt, "mpt_done: TASK MGMT"); 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, "mpt_done: unknown Function 0x%x (0x%x)", 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, "mpt_done: no scsipi_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; } 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 (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: /* 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; break; case MPI_IOCSTATUS_SCSI_TASK_TERMINATED: /* XXX What should we do here? */ 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.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 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) scsipi_done(xs); } 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 = 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_fc || (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_fc) mpt_req->Control |= MPI_SCSIIO_CONTROL_SIMPLEQ; else mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED; break; } } else mpt_req->Control |= MPI_SCSIIO_CONTROL_UNTAGGED; if (__predict_false(mpt->is_fc == 0 && (mpt->mpt_disc_enable & (1 << periph->periph_target)) == 0)) mpt_req->Control |= MPI_SCSIIO_CONTROL_NO_DISCONNECT; /* 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->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; mpt_req->DataLength = xs->datalen; 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 = 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; } 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; memset(se, 0, 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->xs_control & XS_CTL_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->xs_control & XS_CTL_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; memset(se, 0, 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->xs_control & XS_CTL_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; memset(se, 0, 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(); if (__predict_true((xs->xs_control & XS_CTL_POLL) == 0)) callout_reset(&xs->xs_callout, mstohz(xs->timeout), mpt_timeout, req); mpt_send_cmd(mpt, req); splx(s); if (__predict_true((xs->xs_control & XS_CTL_POLL) == 0)) return; /* * If we can't use interrupts, poll on completion. */ if (mpt_poll(mpt, xs, xs->timeout)) mpt_timeout(req); } static void mpt_set_xfer_mode(mpt_softc_t *mpt, struct scsipi_xfer_mode *xm) { fCONFIG_PAGE_SCSI_DEVICE_1 tmp; if (mpt->is_fc) { /* * SCSI transport settings don't make any sense for * Fibre Channel; silently ignore the request. */ return; } /* * Always allow disconnect; we don't have a way to disable * it right now, in any case. */ mpt->mpt_disc_enable |= (1 << xm->xm_target); if (xm->xm_mode & PERIPH_CAP_TQING) mpt->mpt_tag_enable |= (1 << xm->xm_target); else mpt->mpt_tag_enable &= ~(1 << xm->xm_target); tmp = mpt->mpt_dev_page1[xm->xm_target]; /* * Set the wide/narrow parameter for the target. */ if (xm->xm_mode & PERIPH_CAP_WIDE16) tmp.RequestedParameters |= MPI_SCSIDEVPAGE1_RP_WIDE; else tmp.RequestedParameters &= ~MPI_SCSIDEVPAGE1_RP_WIDE; /* * Set the synchronous parameters for the target. * * XXX If we request sync transfers, we just go ahead and * XXX request the maximum available. We need finer control * XXX in order to implement Domain Validation. */ tmp.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 (xm->xm_mode & PERIPH_CAP_SYNC) { int factor, offset, np; factor = (mpt->mpt_port_page0.Capabilities >> 8) & 0xff; offset = (mpt->mpt_port_page0.Capabilities >> 16) & 0xff; np = 0; if (factor < 0x9) { /* Ultra320 */ np |= MPI_SCSIDEVPAGE1_RP_QAS | MPI_SCSIDEVPAGE1_RP_IU; } if (factor < 0xa) { /* at least Ultra160 */ np |= MPI_SCSIDEVPAGE1_RP_DT; } np |= (factor << 8) | (offset << 16); tmp.RequestedParameters |= np; } if (mpt_write_cfg_page(mpt, xm->xm_target, &tmp.Header)) { mpt_prt(mpt, "unable to write Device Page 1"); return; } if (mpt_read_cfg_page(mpt, xm->xm_target, &tmp.Header)) { mpt_prt(mpt, "unable to read back Device Page 1"); return; } mpt->mpt_dev_page1[xm->xm_target] = tmp; if (mpt->verbose > 1) { mpt_prt(mpt, "SPI Target %d Page 1: RequestedParameters %x Config %x", xm->xm_target, mpt->mpt_dev_page1[xm->xm_target].RequestedParameters, mpt->mpt_dev_page1[xm->xm_target].Configuration); } /* * Make a note that we should perform an async callback at the * end of the next successful command completion to report the * negotiated transfer mode. */ mpt->mpt_report_xfer_mode |= (1 << xm->xm_target); } static void mpt_get_xfer_mode(mpt_softc_t *mpt, struct scsipi_periph *periph) { fCONFIG_PAGE_SCSI_DEVICE_0 tmp; struct scsipi_xfer_mode xm; int period, offset; tmp = mpt->mpt_dev_page0[periph->periph_target]; if (mpt_read_cfg_page(mpt, periph->periph_target, &tmp.Header)) { mpt_prt(mpt, "unable to read Device Page 0"); return; } if (mpt->verbose > 1) { mpt_prt(mpt, "SPI Tgt %d Page 0: NParms %x Information %x", periph->periph_target, tmp.NegotiatedParameters, tmp.Information); } xm.xm_target = periph->periph_target; xm.xm_mode = 0; if (tmp.NegotiatedParameters & MPI_SCSIDEVPAGE0_NP_WIDE) xm.xm_mode |= PERIPH_CAP_WIDE16; period = (tmp.NegotiatedParameters >> 8) & 0xff; offset = (tmp.NegotiatedParameters >> 16) & 0xff; if (offset) { xm.xm_period = period; xm.xm_offset = offset; xm.xm_mode |= PERIPH_CAP_SYNC; } /* * Tagged queueing is all controlled by us; there is no * other setting to query. */ if (mpt->mpt_tag_enable & (1 << periph->periph_target)) xm.xm_mode |= PERIPH_CAP_TQING; /* * We're going to deliver the async event, so clear the marker. */ mpt->mpt_report_xfer_mode &= ~(1 << periph->periph_target); scsipi_async_event(&mpt->sc_channel, ASYNC_EVENT_XFER_MODE, &xm); } static 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); } } static 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->sc_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; memset(ackp, 0, 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); } } /* XXXJRT mpt_bus_reset() */ /***************************************************************************** * SCSI interface routines *****************************************************************************/ static void mpt_scsipi_request(struct scsipi_channel *chan, scsipi_adapter_req_t req, void *arg) { struct scsipi_adapter *adapt = chan->chan_adapter; mpt_softc_t *mpt = (void *) adapt->adapt_dev; switch (req) { case ADAPTER_REQ_RUN_XFER: mpt_run_xfer(mpt, (struct scsipi_xfer *) arg); return; case ADAPTER_REQ_GROW_RESOURCES: /* Not supported. */ return; case ADAPTER_REQ_SET_XFER_MODE: mpt_set_xfer_mode(mpt, (struct scsipi_xfer_mode *) arg); return; } } static 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); }