/* $NetBSD: isp_sbus.c,v 1.65 2006/03/29 04:16:50 thorpej Exp $ */ /* * This driver, which is contained in NetBSD in the files: * * sys/dev/ic/isp.c * sys/dev/ic/isp_inline.h * sys/dev/ic/isp_netbsd.c * sys/dev/ic/isp_netbsd.h * sys/dev/ic/isp_target.c * sys/dev/ic/isp_target.h * sys/dev/ic/isp_tpublic.h * sys/dev/ic/ispmbox.h * sys/dev/ic/ispreg.h * sys/dev/ic/ispvar.h * sys/microcode/isp/asm_sbus.h * sys/microcode/isp/asm_1040.h * sys/microcode/isp/asm_1080.h * sys/microcode/isp/asm_12160.h * sys/microcode/isp/asm_2100.h * sys/microcode/isp/asm_2200.h * sys/pci/isp_pci.c * sys/sbus/isp_sbus.c * * Is being actively maintained by Matthew Jacob (mjacob@NetBSD.org). * This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris, * Linux versions. This tends to be an interesting maintenance problem. * * Please coordinate with Matthew Jacob on changes you wish to make here. */ /* * SBus specific probe and attach routines for Qlogic ISP SCSI adapters. * * Copyright (c) 1997, 2001 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. * * 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 __KERNEL_RCSID(0, "$NetBSD: isp_sbus.c,v 1.65 2006/03/29 04:16:50 thorpej Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include static void isp_sbus_reset1(struct ispsoftc *); static int isp_sbus_intr(void *); static int isp_sbus_rd_isr(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *); static u_int16_t isp_sbus_rd_reg(struct ispsoftc *, int); static void isp_sbus_wr_reg (struct ispsoftc *, int, u_int16_t); static int isp_sbus_mbxdma(struct ispsoftc *); static int isp_sbus_dmasetup(struct ispsoftc *, XS_T *, ispreq_t *, u_int16_t *, u_int16_t); static void isp_sbus_dmateardown(struct ispsoftc *, XS_T *, u_int16_t); #ifndef ISP_1000_RISC_CODE #define ISP_1000_RISC_CODE NULL #endif static struct ispmdvec mdvec = { isp_sbus_rd_isr, isp_sbus_rd_reg, isp_sbus_wr_reg, isp_sbus_mbxdma, isp_sbus_dmasetup, isp_sbus_dmateardown, NULL, isp_sbus_reset1, NULL, ISP_1000_RISC_CODE }; struct isp_sbussoftc { struct ispsoftc sbus_isp; struct sbusdev sbus_sd; sdparam sbus_dev; bus_space_tag_t sbus_bustag; bus_space_handle_t sbus_reg; int sbus_node; int sbus_pri; struct ispmdvec sbus_mdvec; bus_dmamap_t *sbus_dmamap; int16_t sbus_poff[_NREG_BLKS]; }; static int isp_match(struct device *, struct cfdata *, void *); static void isp_sbus_attach(struct device *, struct device *, void *); CFATTACH_DECL(isp_sbus, sizeof (struct isp_sbussoftc), isp_match, isp_sbus_attach, NULL, NULL); static int isp_match(struct device *parent, struct cfdata *cf, void *aux) { int rv; #ifdef DEBUG static int oneshot = 1; #endif struct sbus_attach_args *sa = aux; rv = (strcmp(cf->cf_name, sa->sa_name) == 0 || strcmp("PTI,ptisp", sa->sa_name) == 0 || strcmp("ptisp", sa->sa_name) == 0 || strcmp("SUNW,isp", sa->sa_name) == 0 || strcmp("QLGC,isp", sa->sa_name) == 0); #ifdef DEBUG if (rv && oneshot) { oneshot = 0; printf("Qlogic ISP Driver, NetBSD (sbus) Platform Version " "%d.%d Core Version %d.%d\n", ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); } #endif return (rv); } static void isp_sbus_attach(struct device *parent, struct device *self, void *aux) { int freq, ispburst, sbusburst; struct sbus_attach_args *sa = aux; struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) self; struct ispsoftc *isp = &sbc->sbus_isp; printf(" for %s\n", sa->sa_name); sbc->sbus_bustag = sa->sa_bustag; if (sa->sa_nintr != 0) sbc->sbus_pri = sa->sa_pri; sbc->sbus_mdvec = mdvec; if (sa->sa_npromvaddrs) { sbus_promaddr_to_handle(sa->sa_bustag, sa->sa_promvaddrs[0], &sbc->sbus_reg); } else { if (sbus_bus_map(sa->sa_bustag, sa->sa_slot, sa->sa_offset, sa->sa_size, 0, &sbc->sbus_reg) != 0) { printf("%s: cannot map registers\n", self->dv_xname); return; } } sbc->sbus_node = sa->sa_node; freq = prom_getpropint(sa->sa_node, "clock-frequency", 0); if (freq) { /* * Convert from HZ to MHz, rounding up. */ freq = (freq + 500000)/1000000; #if 0 printf("%s: %d MHz\n", self->dv_xname, freq); #endif } sbc->sbus_mdvec.dv_clock = freq; /* * Now figure out what the proper burst sizes, etc., to use. * Unfortunately, there is no ddi_dma_burstsizes here which * walks up the tree finding the limiting burst size node (if * any). */ sbusburst = ((struct sbus_softc *)parent)->sc_burst; if (sbusburst == 0) sbusburst = SBUS_BURST_32 - 1; ispburst = prom_getpropint(sa->sa_node, "burst-sizes", -1); if (ispburst == -1) { ispburst = sbusburst; } ispburst &= sbusburst; ispburst &= ~(1 << 7); ispburst &= ~(1 << 6); sbc->sbus_mdvec.dv_conf1 = 0; if (ispburst & (1 << 5)) { sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_32; } else if (ispburst & (1 << 4)) { sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_FIFO_16; } else if (ispburst & (1 << 3)) { sbc->sbus_mdvec.dv_conf1 = BIU_SBUS_CONF1_BURST8 | BIU_SBUS_CONF1_FIFO_8; } if (sbc->sbus_mdvec.dv_conf1) { sbc->sbus_mdvec.dv_conf1 |= BIU_BURST_ENABLE; } /* * Some early versions of the PTI SBus adapter * would fail in trying to download (via poking) * FW. We give up on them. */ if (strcmp("PTI,ptisp", sa->sa_name) == 0 || strcmp("ptisp", sa->sa_name) == 0) { sbc->sbus_mdvec.dv_ispfw = NULL; } isp->isp_mdvec = &sbc->sbus_mdvec; isp->isp_bustype = ISP_BT_SBUS; isp->isp_type = ISP_HA_SCSI_UNKNOWN; isp->isp_param = &sbc->sbus_dev; isp->isp_dmatag = sa->sa_dmatag; MEMZERO(isp->isp_param, sizeof (sdparam)); sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF; sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF; sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF; sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; /* Establish interrupt channel */ bus_intr_establish(sbc->sbus_bustag, sbc->sbus_pri, IPL_BIO, isp_sbus_intr, sbc); sbus_establish(&sbc->sbus_sd, &sbc->sbus_isp.isp_osinfo._dev); /* * Set up logging levels. */ #ifdef ISP_LOGDEFAULT isp->isp_dblev = ISP_LOGDEFAULT; #else isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR; if (bootverbose) isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO; #ifdef SCSIDEBUG isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2; #endif #ifdef DEBUG isp->isp_dblev |= ISP_LOGDEBUG0; #endif #endif isp->isp_confopts = device_cfdata(self)->cf_flags; isp->isp_role = ISP_DEFAULT_ROLES; /* * There's no tool on sparc to set NVRAM for ISPs, so ignore it. */ isp->isp_confopts |= ISP_CFG_NONVRAM; ISP_LOCK(isp); isp->isp_osinfo.no_mbox_ints = 1; isp_reset(isp); if (isp->isp_state != ISP_RESETSTATE) { ISP_UNLOCK(isp); return; } ENABLE_INTS(isp); isp_init(isp); if (isp->isp_state != ISP_INITSTATE) { isp_uninit(isp); ISP_UNLOCK(isp); return; } /* * do generic attach. */ ISP_UNLOCK(isp); isp_attach(isp); if (isp->isp_state != ISP_RUNSTATE) { ISP_LOCK(isp); isp_uninit(isp); ISP_UNLOCK(isp); } } static void isp_sbus_reset1(struct ispsoftc *isp) { if (isp->isp_osinfo.no_mbox_ints == 0) { ENABLE_INTS(isp); } } static int isp_sbus_intr(void *arg) { u_int16_t isr, sema, mbox; struct ispsoftc *isp = arg; if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) { isp->isp_intbogus++; return (0); } else { struct isp_sbussoftc *sbc = arg; sbc->sbus_isp.isp_osinfo.onintstack = 1; isp_intr(isp, isr, sema, mbox); sbc->sbus_isp.isp_osinfo.onintstack = 0; return (1); } } #define IspVirt2Off(a, x) \ (((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \ _BLK_REG_SHFT] + ((x) & 0xff)) #define BXR2(sbc, off) \ bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, off) static int isp_sbus_rd_isr(struct ispsoftc *isp, u_int16_t *isrp, u_int16_t *semap, u_int16_t *mbp) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; u_int16_t isr, sema; isr = BXR2(sbc, IspVirt2Off(isp, BIU_ISR)); sema = BXR2(sbc, IspVirt2Off(isp, BIU_SEMA)); isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema); isr &= INT_PENDING_MASK(isp); sema &= BIU_SEMA_LOCK; if (isr == 0 && sema == 0) { return (0); } *isrp = isr; if ((*semap = sema) != 0) { *mbp = BXR2(sbc, IspVirt2Off(isp, OUTMAILBOX0)); } return (1); } static u_int16_t isp_sbus_rd_reg(struct ispsoftc *isp, int regoff) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); return (bus_space_read_2(sbc->sbus_bustag, sbc->sbus_reg, offset)); } static void isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int16_t val) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); bus_space_write_2(sbc->sbus_bustag, sbc->sbus_reg, offset, val); } static int isp_sbus_mbxdma(struct ispsoftc *isp) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; bus_dma_segment_t reqseg, rspseg; int reqrs, rsprs, i, progress; size_t n; bus_size_t len; if (isp->isp_rquest_dma) return (0); n = isp->isp_maxcmds * sizeof (XS_T *); isp->isp_xflist = (XS_T **) malloc(n, M_DEVBUF, M_WAITOK); if (isp->isp_xflist == NULL) { isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array"); return (1); } MEMZERO(isp->isp_xflist, n); n = sizeof (bus_dmamap_t) * isp->isp_maxcmds; sbc->sbus_dmamap = (bus_dmamap_t *) malloc(n, M_DEVBUF, M_WAITOK); if (sbc->sbus_dmamap == NULL) { free(isp->isp_xflist, M_DEVBUF); isp->isp_xflist = NULL; isp_prt(isp, ISP_LOGERR, "cannot alloc dmamap array"); return (1); } for (i = 0; i < isp->isp_maxcmds; i++) { /* Allocate a DMA handle */ if (bus_dmamap_create(isp->isp_dmatag, MAXPHYS, 1, MAXPHYS, 0, BUS_DMA_NOWAIT, &sbc->sbus_dmamap[i]) != 0) { isp_prt(isp, ISP_LOGERR, "cmd DMA maps create error"); break; } } if (i < isp->isp_maxcmds) { while (--i >= 0) { bus_dmamap_destroy(isp->isp_dmatag, sbc->sbus_dmamap[i]); } free(isp->isp_xflist, M_DEVBUF); free(sbc->sbus_dmamap, M_DEVBUF); isp->isp_xflist = NULL; sbc->sbus_dmamap = NULL; return (1); } /* * Allocate and map the request and response queues */ progress = 0; len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp)); if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &reqseg, 1, &reqrs, BUS_DMA_NOWAIT)) { goto dmafail; } progress++; if (bus_dmamem_map(isp->isp_dmatag, &reqseg, reqrs, len, (caddr_t *)&isp->isp_rquest, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { goto dmafail; } progress++; if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 0, BUS_DMA_NOWAIT, &isp->isp_rqdmap) != 0) { goto dmafail; } progress++; if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rqdmap, isp->isp_rquest, len, NULL, BUS_DMA_NOWAIT) != 0) { goto dmafail; } progress++; isp->isp_rquest_dma = isp->isp_rqdmap->dm_segs[0].ds_addr; len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp)); if (bus_dmamem_alloc(isp->isp_dmatag, len, 0, 0, &rspseg, 1, &rsprs, BUS_DMA_NOWAIT)) { goto dmafail; } progress++; if (bus_dmamem_map(isp->isp_dmatag, &rspseg, rsprs, len, (caddr_t *)&isp->isp_result, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { goto dmafail; } progress++; if (bus_dmamap_create(isp->isp_dmatag, len, 1, len, 0, BUS_DMA_NOWAIT, &isp->isp_rsdmap) != 0) { goto dmafail; } progress++; if (bus_dmamap_load(isp->isp_dmatag, isp->isp_rsdmap, isp->isp_result, len, NULL, BUS_DMA_NOWAIT) != 0) { goto dmafail; } isp->isp_result_dma = isp->isp_rsdmap->dm_segs[0].ds_addr; return (0); dmafail: isp_prt(isp, ISP_LOGERR, "Mailbox DMA Setup Failure"); if (progress >= 8) { bus_dmamap_unload(isp->isp_dmatag, isp->isp_rsdmap); } if (progress >= 7) { bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rsdmap); } if (progress >= 6) { bus_dmamem_unmap(isp->isp_dmatag, isp->isp_result, ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp))); } if (progress >= 5) { bus_dmamem_free(isp->isp_dmatag, &rspseg, rsprs); } if (progress >= 4) { bus_dmamap_unload(isp->isp_dmatag, isp->isp_rqdmap); } if (progress >= 3) { bus_dmamap_destroy(isp->isp_dmatag, isp->isp_rqdmap); } if (progress >= 2) { bus_dmamem_unmap(isp->isp_dmatag, isp->isp_rquest, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp))); } if (progress >= 1) { bus_dmamem_free(isp->isp_dmatag, &reqseg, reqrs); } for (i = 0; i < isp->isp_maxcmds; i++) { bus_dmamap_destroy(isp->isp_dmatag, sbc->sbus_dmamap[i]); } free(sbc->sbus_dmamap, M_DEVBUF); free(isp->isp_xflist, M_DEVBUF); isp->isp_xflist = NULL; sbc->sbus_dmamap = NULL; return (1); } /* * Map a DMA request. * We're guaranteed that rq->req_handle is a value from 1 to isp->isp_maxcmds. */ static int isp_sbus_dmasetup(struct ispsoftc *isp, XS_T *xs, ispreq_t *rq, u_int16_t *nxtip, u_int16_t optr) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; bus_dmamap_t dmap; ispreq_t *qep; int error, cansleep = (xs->xs_control & XS_CTL_NOSLEEP) == 0; int in = (xs->xs_control & XS_CTL_DATA_IN) != 0; qep = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx); if (xs->datalen == 0) { rq->req_seg_count = 1; goto mbxsync; } dmap = sbc->sbus_dmamap[isp_handle_index(rq->req_handle)]; if (dmap->dm_nsegs != 0) { panic("%s: DMA map already allocated", isp->isp_name); /* NOTREACHED */ } error = bus_dmamap_load(isp->isp_dmatag, dmap, xs->data, xs->datalen, NULL, (cansleep ? BUS_DMA_WAITOK : BUS_DMA_NOWAIT) | BUS_DMA_STREAMING); if (error != 0) { XS_SETERR(xs, HBA_BOTCH); if (error == EAGAIN || error == ENOMEM) return (CMD_EAGAIN); else return (CMD_COMPLETE); } bus_dmamap_sync(isp->isp_dmatag, dmap, 0, xs->datalen, in? BUS_DMASYNC_PREREAD : BUS_DMASYNC_PREWRITE); if (in) { rq->req_flags |= REQFLAG_DATA_IN; } else { rq->req_flags |= REQFLAG_DATA_OUT; } if (XS_CDBLEN(xs) > 12) { u_int16_t onxti; ispcontreq_t local, *crq = &local, *cqe; onxti = *nxtip; cqe = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, onxti); *nxtip = ISP_NXT_QENTRY(onxti, RQUEST_QUEUE_LEN(isp)); if (*nxtip == optr) { isp_prt(isp, ISP_LOGDEBUG0, "Request Queue Overflow++"); bus_dmamap_unload(isp->isp_dmatag, dmap); XS_SETERR(xs, HBA_BOTCH); return (CMD_EAGAIN); } rq->req_seg_count = 2; MEMZERO((void *)crq, sizeof (*crq)); crq->req_header.rqs_entry_count = 1; crq->req_header.rqs_entry_type = RQSTYPE_DATASEG; crq->req_dataseg[0].ds_count = xs->datalen; crq->req_dataseg[0].ds_base = dmap->dm_segs[0].ds_addr; isp_put_cont_req(isp, crq, cqe); MEMORYBARRIER(isp, SYNC_REQUEST, onxti, QENTRY_LEN); } else { rq->req_seg_count = 1; rq->req_dataseg[0].ds_count = xs->datalen; rq->req_dataseg[0].ds_base = dmap->dm_segs[0].ds_addr; } mbxsync: if (XS_CDBLEN(xs) > 12) { isp_put_extended_request(isp, (ispextreq_t *)rq, (ispextreq_t *) qep); } else { isp_put_request(isp, rq, qep); } return (CMD_QUEUED); } static void isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int16_t handle) { struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp; bus_dmamap_t dmap; dmap = sbc->sbus_dmamap[isp_handle_index(handle)]; if (dmap->dm_nsegs == 0) { panic("%s: DMA map not already allocated", isp->isp_name); /* NOTREACHED */ } bus_dmamap_sync(isp->isp_dmatag, dmap, 0, xs->datalen, (xs->xs_control & XS_CTL_DATA_IN)? BUS_DMASYNC_POSTREAD : BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(isp->isp_dmatag, dmap); }