/* $NetBSD: isp_pci.c,v 1.17 1997/09/10 02:16:13 mjacob Exp $ */ /* * PCI specific probe and attach routines for Qlogic ISP SCSI adapters. * * Copyright (c) 1997 by Matthew Jacob * NASA AMES Research Center * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice immediately at the beginning of the file, without modification, * this list of conditions, and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static u_int16_t isp_pci_rd_reg __P((struct ispsoftc *, int)); static void isp_pci_wr_reg __P((struct ispsoftc *, int, u_int16_t)); static int isp_pci_mbxdma __P((struct ispsoftc *)); static int isp_pci_dmasetup __P((struct ispsoftc *, struct scsipi_xfer *, ispreq_t *, u_int8_t *, u_int8_t)); static void isp_pci_dmateardown __P((struct ispsoftc *, struct scsipi_xfer *, u_int32_t)); static void isp_pci_reset1 __P((struct ispsoftc *)); static void isp_pci_dumpregs __P((struct ispsoftc *)); static struct ispmdvec mdvec = { isp_pci_rd_reg, isp_pci_wr_reg, isp_pci_mbxdma, isp_pci_dmasetup, isp_pci_dmateardown, NULL, isp_pci_reset1, isp_pci_dumpregs, ISP_RISC_CODE, ISP_CODE_LENGTH, ISP_CODE_ORG, ISP_CODE_VERSION, BIU_PCI_CONF1_FIFO_64 | BIU_BURST_ENABLE, 60 /* MAGIC- all known PCI card implementations are 60MHz */ }; static struct ispmdvec mdvec_2100 = { isp_pci_rd_reg, isp_pci_wr_reg, isp_pci_mbxdma, isp_pci_dmasetup, isp_pci_dmateardown, NULL, isp_pci_reset1, isp_pci_dumpregs, ISP2100_RISC_CODE, ISP2100_CODE_LENGTH, ISP2100_CODE_ORG, ISP2100_CODE_VERSION, BIU_PCI_CONF1_FIFO_64 | BIU_BURST_ENABLE, 60 /* MAGIC- all known PCI card implementations are 60MHz */ }; #define PCI_QLOGIC_ISP \ ((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC) #ifndef PCI_PRODUCT_QLOGIC_ISP2100 #define PCI_PRODUCT_QLOGIC_ISP2100 0x2100 #endif #define PCI_QLOGIC_ISP2100 \ ((PCI_PRODUCT_QLOGIC_ISP2100 << 16) | PCI_VENDOR_QLOGIC) #define IO_MAP_REG 0x10 #define MEM_MAP_REG 0x14 #ifdef __BROKEN_INDIRECT_CONFIG static int isp_pci_probe __P((struct device *, void *, void *)); #else static int isp_pci_probe __P((struct device *, struct cfdata *, void *)); #endif static void isp_pci_attach __P((struct device *, struct device *, void *)); struct isp_pcisoftc { struct ispsoftc pci_isp; pci_chipset_tag_t pci_pc; pcitag_t pci_tag; bus_space_tag_t pci_st; bus_space_handle_t pci_sh; bus_dma_tag_t pci_dmat; bus_dmamap_t pci_scratch_dmap; /* for fcp only */ bus_dmamap_t pci_rquest_dmap; bus_dmamap_t pci_result_dmap; bus_dmamap_t pci_xfer_dmap[MAXISPREQUEST]; void * pci_ih; }; struct cfattach isp_pci_ca = { sizeof (struct isp_pcisoftc), isp_pci_probe, isp_pci_attach }; static int isp_pci_probe(parent, match, aux) struct device *parent; #ifdef __BROKEN_INDIRECT_CONFIG void *match, *aux; #else struct cfdata *match; void *aux; #endif { struct pci_attach_args *pa = aux; if (pa->pa_id == PCI_QLOGIC_ISP || pa->pa_id == PCI_QLOGIC_ISP2100) { return (1); } else { return (0); } } static void isp_pci_attach(parent, self, aux) struct device *parent, *self; void *aux; { struct pci_attach_args *pa = aux; struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) self; bus_space_tag_t st, iot, memt; bus_space_handle_t sh, ioh, memh; pci_intr_handle_t ih; const char *intrstr; int ioh_valid, memh_valid, i; ioh_valid = (pci_mapreg_map(pa, IO_MAP_REG, PCI_MAPREG_TYPE_IO, 0, &iot, &ioh, NULL, NULL) == 0); memh_valid = (pci_mapreg_map(pa, MEM_MAP_REG, PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &memt, &memh, NULL, NULL) == 0); if (memh_valid) { st = memt; sh = memh; } else if (ioh_valid) { st = iot; sh = ioh; } else { printf(": unable to map device registers\n"); return; } printf("\n"); pcs->pci_st = st; pcs->pci_sh = sh; pcs->pci_dmat = pa->pa_dmat; pcs->pci_pc = pa->pa_pc; pcs->pci_tag = pa->pa_tag; if (pa->pa_id == PCI_QLOGIC_ISP) { pcs->pci_isp.isp_mdvec = &mdvec; pcs->pci_isp.isp_type = ISP_HA_SCSI_UNKNOWN; pcs->pci_isp.isp_param = malloc(sizeof (sdparam), M_DEVBUF, M_NOWAIT); if (pcs->pci_isp.isp_param == NULL) { printf("%s: couldn't allocate sdparam table\n", pcs->pci_isp.isp_name); } bzero(pcs->pci_isp.isp_param, sizeof (sdparam)); } else if (pa->pa_id == PCI_QLOGIC_ISP2100) { u_int32_t data; pcs->pci_isp.isp_mdvec = &mdvec_2100; if (ioh_valid == 0) { printf("%s: warning, ISP2100 cannot use I/O Space" " Mappings\n", pcs->pci_isp.isp_name); } else { pcs->pci_st = iot; pcs->pci_sh = ioh; } #if 0 printf("%s: PCIREGS cmd=%x bhlc=%x\n", pcs->pci_isp.isp_name, pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG), pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG)); #endif pcs->pci_isp.isp_type = ISP_HA_FC_2100; pcs->pci_isp.isp_param = malloc(sizeof (fcparam), M_DEVBUF, M_NOWAIT); if (pcs->pci_isp.isp_param == NULL) { printf("%s: couldn't allocate fcparam table\n", pcs->pci_isp.isp_name); } bzero(pcs->pci_isp.isp_param, sizeof (fcparam)); data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); data |= PCI_COMMAND_MASTER_ENABLE | PCI_COMMAND_INVALIDATE_ENABLE; pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, data); /* * Wierd- we need to clear the lsb in offset 0x30 to take the * chip out of reset state. */ data = pci_conf_read(pa->pa_pc, pa->pa_tag, 0x30); data &= ~1; pci_conf_write(pa->pa_pc, pa->pa_tag, 0x30, data); #if 0 /* * XXX: Need to get the actual revision number of the 2100 FB */ data = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG); data &= ~0xffff; data |= 0xf801; pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, data); printf("%s: setting latency to %x and cache line size to %x\n", pcs->pci_isp.isp_name, (data >> 8) & 0xff, data & 0xff); #endif } else { return; } isp_reset(&pcs->pci_isp); if (pcs->pci_isp.isp_state != ISP_RESETSTATE) { free(pcs->pci_isp.isp_param, M_DEVBUF); return; } isp_init(&pcs->pci_isp); if (pcs->pci_isp.isp_state != ISP_INITSTATE) { isp_uninit(&pcs->pci_isp); free(pcs->pci_isp.isp_param, M_DEVBUF); return; } if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, pa->pa_intrline, &ih)) { printf("%s: couldn't map interrupt\n", pcs->pci_isp.isp_name); isp_uninit(&pcs->pci_isp); free(pcs->pci_isp.isp_param, M_DEVBUF); return; } intrstr = pci_intr_string(pa->pa_pc, ih); if (intrstr == NULL) intrstr = ""; pcs->pci_ih = pci_intr_establish(pa->pa_pc, ih, IPL_BIO, isp_intr, &pcs->pci_isp); if (pcs->pci_ih == NULL) { printf("%s: couldn't establish interrupt at %s\n", pcs->pci_isp.isp_name, intrstr); isp_uninit(&pcs->pci_isp); free(pcs->pci_isp.isp_param, M_DEVBUF); return; } printf("%s: interrupting at %s\n", pcs->pci_isp.isp_name, intrstr); /* * Create the DMA maps for the data transfers. */ for (i = 0; i < RQUEST_QUEUE_LEN(&pcs->pci_isp); i++) { if (bus_dmamap_create(pcs->pci_dmat, MAXPHYS, (MAXPHYS / NBPG) + 1, MAXPHYS, 0, BUS_DMA_NOWAIT, &pcs->pci_xfer_dmap[i])) { printf("%s: can't create dma maps\n", pcs->pci_isp.isp_name); isp_uninit(&pcs->pci_isp); return; } } /* * Do Generic attach now. */ isp_attach(&pcs->pci_isp); if (pcs->pci_isp.isp_state != ISP_RUNSTATE) { isp_uninit(&pcs->pci_isp); free(pcs->pci_isp.isp_param, M_DEVBUF); } } #define PCI_BIU_REGS_OFF BIU_REGS_OFF static u_int16_t isp_pci_rd_reg(isp, regoff) struct ispsoftc *isp; int regoff; { u_int16_t rv; struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp; int offset, oldsxp = 0; if ((regoff & BIU_BLOCK) != 0) { offset = PCI_BIU_REGS_OFF; } else if ((regoff & MBOX_BLOCK) != 0) { if (isp->isp_type & ISP_HA_SCSI) offset = PCI_MBOX_REGS_OFF; else offset = PCI_MBOX_REGS2100_OFF; } else if ((regoff & SXP_BLOCK) != 0) { offset = PCI_SXP_REGS_OFF; /* * We will assume that someone has paused the RISC processor. */ oldsxp = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oldsxp & ~BIU_PCI_CONF1_SXP); } else { offset = PCI_RISC_REGS_OFF; } regoff &= 0xff; offset += regoff; rv = bus_space_read_2(pcs->pci_st, pcs->pci_sh, offset); if ((regoff & SXP_BLOCK) != 0) { isp_pci_wr_reg(isp, BIU_CONF1, oldsxp); } return (rv); } static void isp_pci_wr_reg(isp, regoff, val) struct ispsoftc *isp; int regoff; u_int16_t val; { struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp; int offset, oldsxp = 0; if ((regoff & BIU_BLOCK) != 0) { offset = PCI_BIU_REGS_OFF; } else if ((regoff & MBOX_BLOCK) != 0) { if (isp->isp_type & ISP_HA_SCSI) offset = PCI_MBOX_REGS_OFF; else offset = PCI_MBOX_REGS2100_OFF; } else if ((regoff & SXP_BLOCK) != 0) { offset = PCI_SXP_REGS_OFF; /* * We will assume that someone has paused the RISC processor. */ oldsxp = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oldsxp & ~BIU_PCI_CONF1_SXP); } else { offset = PCI_RISC_REGS_OFF; } regoff &= 0xff; offset += regoff; bus_space_write_2(pcs->pci_st, pcs->pci_sh, offset, val); if ((regoff & SXP_BLOCK) != 0) { isp_pci_wr_reg(isp, BIU_CONF1, oldsxp); } } static int isp_pci_mbxdma(isp) struct ispsoftc *isp; { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; bus_dma_segment_t seg; bus_size_t len; fcparam *fcp; int rseg; /* * Allocate and map the request queue. */ len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); if (bus_dmamem_alloc(pci->pci_dmat, len, NBPG, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT) || bus_dmamem_map(pci->pci_dmat, &seg, rseg, len, (caddr_t *)&isp->isp_rquest, BUS_DMA_NOWAIT|BUS_DMAMEM_NOSYNC)) return (1); if (bus_dmamap_create(pci->pci_dmat, len, 1, len, 0, BUS_DMA_NOWAIT, &pci->pci_rquest_dmap) || bus_dmamap_load(pci->pci_dmat, pci->pci_rquest_dmap, (caddr_t)isp->isp_rquest, len, NULL, BUS_DMA_NOWAIT)) return (1); isp->isp_rquest_dma = pci->pci_rquest_dmap->dm_segs[0].ds_addr; /* * Allocate and map the result queue. */ len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); if (bus_dmamem_alloc(pci->pci_dmat, len, NBPG, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT) || bus_dmamem_map(pci->pci_dmat, &seg, rseg, len, (caddr_t *)&isp->isp_result, BUS_DMA_NOWAIT|BUS_DMAMEM_NOSYNC)) return (1); if (bus_dmamap_create(pci->pci_dmat, len, 1, len, 0, BUS_DMA_NOWAIT, &pci->pci_result_dmap) || bus_dmamap_load(pci->pci_dmat, pci->pci_result_dmap, (caddr_t)isp->isp_result, len, NULL, BUS_DMA_NOWAIT)) return (1); isp->isp_result_dma = pci->pci_result_dmap->dm_segs[0].ds_addr; if (isp->isp_type & ISP_HA_SCSI) { return (0); } fcp = isp->isp_param; len = ISP2100_SCRLEN; if (bus_dmamem_alloc(pci->pci_dmat, len, NBPG, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT) || bus_dmamem_map(pci->pci_dmat, &seg, rseg, len, (caddr_t *)&fcp->isp_scratch, BUS_DMA_NOWAIT|BUS_DMAMEM_NOSYNC)) return (1); if (bus_dmamap_create(pci->pci_dmat, len, 1, len, 0, BUS_DMA_NOWAIT, &pci->pci_scratch_dmap) || bus_dmamap_load(pci->pci_dmat, pci->pci_scratch_dmap, (caddr_t)fcp->isp_scratch, len, NULL, BUS_DMA_NOWAIT)) return (1); fcp->isp_scdma = pci->pci_scratch_dmap->dm_segs[0].ds_addr; return (0); } static int isp_pci_dmasetup(isp, xs, rq, iptrp, optr) struct ispsoftc *isp; struct scsipi_xfer *xs; ispreq_t *rq; u_int8_t *iptrp; u_int8_t optr; { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; bus_dmamap_t dmap = pci->pci_xfer_dmap[rq->req_handle - 1]; ispcontreq_t *crq; int segcnt, seg, error, ovseg, seglim, drq; if (xs->datalen == 0) { rq->req_seg_count = 1; return (0); } if (rq->req_handle > RQUEST_QUEUE_LEN(isp) || rq->req_handle < 1) { panic("%s: bad handle (%d) in isp_pci_dmasetup\n", isp->isp_name, rq->req_handle); /* NOTREACHED */ } if (xs->flags & SCSI_DATA_IN) { drq = REQFLAG_DATA_IN; } else { drq = REQFLAG_DATA_OUT; } if (isp->isp_type & ISP_HA_FC) { seglim = ISP_RQDSEG_T2; ((ispreqt2_t *)rq)->req_totalcnt = xs->datalen; ((ispreqt2_t *)rq)->req_flags |= drq; } else { seglim = ISP_RQDSEG; rq->req_flags |= drq; } error = bus_dmamap_load(pci->pci_dmat, dmap, xs->data, xs->datalen, NULL, xs->flags & SCSI_NOSLEEP ? BUS_DMA_NOWAIT : BUS_DMA_WAITOK); if (error) return (error); segcnt = dmap->dm_nsegs; for (seg = 0, rq->req_seg_count = 0; seg < segcnt && rq->req_seg_count < seglim; seg++, rq->req_seg_count++) { if (isp->isp_type & ISP_HA_FC) { ispreqt2_t *rq2 = (ispreqt2_t *)rq; rq2->req_dataseg[rq2->req_seg_count].ds_count = dmap->dm_segs[seg].ds_len; rq2->req_dataseg[rq2->req_seg_count].ds_base = dmap->dm_segs[seg].ds_addr; } else { rq->req_dataseg[rq->req_seg_count].ds_count = dmap->dm_segs[seg].ds_len; rq->req_dataseg[rq->req_seg_count].ds_base = dmap->dm_segs[seg].ds_addr; } } if (seg == segcnt) goto mapsync; do { crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp); *iptrp = (*iptrp + 1) & (RQUEST_QUEUE_LEN(isp) - 1); if (*iptrp == optr) { printf("%s: Request Queue Overflow++\n", isp->isp_name); bus_dmamap_unload(pci->pci_dmat, dmap); return (EFBIG); } rq->req_header.rqs_entry_count++; bzero((void *)crq, sizeof (*crq)); crq->req_header.rqs_entry_count = 1; crq->req_header.rqs_entry_type = RQSTYPE_DATASEG; for (ovseg = 0; seg < segcnt && ovseg < ISP_CDSEG; rq->req_seg_count++, seg++, ovseg++) { crq->req_dataseg[ovseg].ds_count = dmap->dm_segs[seg].ds_len; crq->req_dataseg[ovseg].ds_base = dmap->dm_segs[seg].ds_addr; } } while (seg < segcnt); mapsync: bus_dmamap_sync(pci->pci_dmat, dmap, xs->flags & SCSI_DATA_IN ? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); return (0); } static void isp_pci_dmateardown(isp, xs, handle) struct ispsoftc *isp; struct scsipi_xfer *xs; u_int32_t handle; { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; bus_dmamap_t dmap = pci->pci_xfer_dmap[handle]; bus_dmamap_sync(pci->pci_dmat, dmap, xs->flags & SCSI_DATA_IN ? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(pci->pci_dmat, dmap); } static void isp_pci_reset1(isp) struct ispsoftc *isp; { /* Make sure the BIOS is disabled */ isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS); } static void isp_pci_dumpregs(isp) struct ispsoftc *isp; { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; printf("%s: PCI Status Command/Status=%x\n", pci->pci_isp.isp_name, pci_conf_read(pci->pci_pc, pci->pci_tag, PCI_COMMAND_STATUS_REG)); }