/* $Id: isp_pci.c,v 1.14 1999/01/30 07:08:55 mjacob Exp $ */ /* release_02_05_99 */ /* * PCI specific probe and attach routines for Qlogic ISP SCSI adapters. * FreeBSD Version. * *--------------------------------------- * Copyright (c) 1997, 1998 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 "opt_isp.h" #include #include #include #include #include #include #include #include #if __FreeBSD_version >= 300004 #include #include #include #endif 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 *, ISP_SCSI_XFER_T *, ispreq_t *, u_int8_t *, u_int8_t)); #if __FreeBSD_version >= 300004 static void isp_pci_dmateardown __P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t)); #else #define isp_pci_dmateardown NULL #endif 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_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64, 0 }; 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, 0, /* Irrelevant to the 2100 */ 0 }; #ifndef SCSI_ISP_PREFER_MEM_MAP #ifdef __alpha__ #define SCSI_ISP_PREFER_MEM_MAP 0 #else #define SCSI_ISP_PREFER_MEM_MAP 1 #endif #endif #ifndef PCIM_CMD_INVEN #define PCIM_CMD_INVEN 0x10 #endif #ifndef PCIM_CMD_BUSMASTEREN #define PCIM_CMD_BUSMASTEREN 0x0004 #endif #ifndef PCIM_CMD_PERRESPEN #define PCIM_CMD_PERRESPEN 0x0040 #endif #ifndef PCIM_CMD_SEREN #define PCIM_CMD_SEREN 0x0100 #endif #ifndef PCIR_COMMAND #define PCIR_COMMAND 0x04 #endif #ifndef PCIR_CACHELNSZ #define PCIR_CACHELNSZ 0x0c #endif #ifndef PCIR_LATTIMER #define PCIR_LATTIMER 0x0d #endif #ifndef PCI_VENDOR_QLOGIC #define PCI_VENDOR_QLOGIC 0x1077 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP1020 #define PCI_PRODUCT_QLOGIC_ISP1020 0x1020 #endif #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 #define PCI_DFLT_LTNCY 0x40 #define PCI_DFLT_LNSZ 0x10 static const char *isp_pci_probe __P((pcici_t tag, pcidi_t type)); static void isp_pci_attach __P((pcici_t config_d, int unit)); /* This distinguishing define is not right, but it does work */ #if __FreeBSD_version < 300004 #define IO_SPACE_MAPPING 0 #define MEM_SPACE_MAPPING 1 typedef int bus_space_tag_t; typedef u_long bus_space_handle_t; #ifdef __alpha__ #define bus_space_read_2(st, sh, offset) \ alpha_mb(), (st == IO_SPACE_MAPPING)? \ inw((pci_port_t)sh + offset) : readw((pci_port_t)sh + offset) #define bus_space_write_2(st, sh, offset, val) \ ((st == IO_SPACE_MAPPING)? outw((pci_port_t)sh + offset, val) : \ writew((pci_port_t)sh + offset, val)), alpha_mb() #else #define bus_space_read_2(st, sh, offset) \ (st == IO_SPACE_MAPPING)? \ inw((pci_port_t)sh + offset) : *((u_int16_t *)(uintptr_t)sh) #define bus_space_write_2(st, sh, offset, val) \ if (st == IO_SPACE_MAPPING) outw((pci_port_t)sh + offset, val); else \ *((u_int16_t *)(uintptr_t)sh) = val #endif #else #ifdef __alpha__ #define IO_SPACE_MAPPING ALPHA_BUS_SPACE_IO #define MEM_SPACE_MAPPING ALPHA_BUS_SPACE_MEM #else #define IO_SPACE_MAPPING I386_BUS_SPACE_IO #define MEM_SPACE_MAPPING I386_BUS_SPACE_MEM #endif #endif struct isp_pcisoftc { struct ispsoftc pci_isp; pcici_t pci_id; bus_space_tag_t pci_st; bus_space_handle_t pci_sh; #if __FreeBSD_version >= 300004 bus_dma_tag_t parent_dmat; bus_dma_tag_t cntrol_dmat; bus_dmamap_t cntrol_dmap; bus_dmamap_t dmaps[MAXISPREQUEST]; #endif union { sdparam _x; struct { fcparam _a; char _b[ISP2100_SCRLEN]; } _y; } _z; }; static u_long ispunit; struct pci_device isp_pci_driver = { "isp", isp_pci_probe, isp_pci_attach, &ispunit, NULL }; DATA_SET (pcidevice_set, isp_pci_driver); static const char * isp_pci_probe(pcici_t tag, pcidi_t type) { static int oneshot = 1; char *x; switch (type) { case PCI_QLOGIC_ISP: x = "Qlogic ISP 10X0 PCI SCSI Adapter"; break; case PCI_QLOGIC_ISP2100: x = "Qlogic ISP 2100 PCI FC-AL Adapter"; break; default: return (NULL); } if (oneshot) { oneshot = 0; printf("%s Version %d.%d, Core Version %d.%d\n", PVS, ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR, ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR); } return (x); } static void isp_pci_attach(pcici_t config_id, int unit) { int mapped; pci_port_t io_port; u_int32_t data; struct isp_pcisoftc *pcs; struct ispsoftc *isp; vm_offset_t vaddr, paddr; ISP_LOCKVAL_DECL; pcs = malloc(sizeof (struct isp_pcisoftc), M_DEVBUF, M_NOWAIT); if (pcs == NULL) { printf("isp%d: cannot allocate softc\n", unit); return; } bzero(pcs, sizeof (struct isp_pcisoftc)); vaddr = paddr = NULL; mapped = 0; /* * Note that pci_conf_read is a 32 bit word aligned function. */ data = pci_conf_read(config_id, PCIR_COMMAND); #if SCSI_ISP_PREFER_MEM_MAP == 1 if (mapped == 0 && (data & PCI_COMMAND_MEM_ENABLE)) { if (pci_map_mem(config_id, MEM_MAP_REG, &vaddr, &paddr)) { pcs->pci_st = MEM_SPACE_MAPPING; pcs->pci_sh = vaddr; mapped++; } } if (mapped == 0 && (data & PCI_COMMAND_IO_ENABLE)) { if (pci_map_port(config_id, PCI_MAP_REG_START, &io_port)) { pcs->pci_st = IO_SPACE_MAPPING; pcs->pci_sh = io_port; mapped++; } } #else if (mapped == 0 && (data & PCI_COMMAND_IO_ENABLE)) { if (pci_map_port(config_id, PCI_MAP_REG_START, &io_port)) { pcs->pci_st = IO_SPACE_MAPPING; pcs->pci_sh = io_port; mapped++; } } if (mapped == 0 && (data & PCI_COMMAND_MEM_ENABLE)) { if (pci_map_mem(config_id, MEM_MAP_REG, &vaddr, &paddr)) { pcs->pci_st = MEM_SPACE_MAPPING; pcs->pci_sh = vaddr; mapped++; } } #endif if (mapped == 0) { printf("isp%d: unable to map any ports!\n", unit); free(pcs, M_DEVBUF); return; } printf("isp%d: using %s space register mapping\n", unit, pcs->pci_st == IO_SPACE_MAPPING? "I/O" : "Memory"); isp = &pcs->pci_isp; #if __FreeBSD_version >= 300006 (void) snprintf(isp->isp_name, sizeof(isp->isp_name), "isp%d", unit); #else (void) sprintf(isp->isp_name, "isp%d", unit); #endif isp->isp_osinfo.unit = unit; data = pci_conf_read(config_id, PCI_ID_REG); if (data == PCI_QLOGIC_ISP) { isp->isp_mdvec = &mdvec; isp->isp_type = ISP_HA_SCSI_UNKNOWN; isp->isp_param = &pcs->_z._x; } else if (data == PCI_QLOGIC_ISP2100) { isp->isp_mdvec = &mdvec_2100; isp->isp_type = ISP_HA_FC_2100; isp->isp_param = &pcs->_z._y._a; /* * For some very early revisions, this dance had to occur. */ #ifdef NOT_NEEDED_ANY_MORE ISP_LOCK(isp); data = pci_conf_read(config_id, 0x30); data &= ~1; pci_conf_write(config_id, 0x30, data); ISP_UNLOCK(isp); #endif } else { printf("%s: unknown dev (%x)- punting\n", isp->isp_name, data); free(pcs, M_DEVBUF); return; } #if __FreeBSD_version >= 300004 ISP_LOCK(isp); /* * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER * are set. */ data = pci_cfgread(config_id, PCIR_COMMAND, 2); data |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN; pci_cfgwrite(config_id, PCIR_COMMAND, 2, data); /* * Make sure the CACHE Line Size register is set sensibly. */ data = pci_cfgread(config_id, PCIR_CACHELNSZ, 1); if (data != PCI_DFLT_LNSZ) { data = PCI_DFLT_LNSZ; printf("%s: set PCI line size to %d\n", isp->isp_name, data); pci_cfgwrite(config_id, PCIR_CACHELNSZ, data, 1); } /* * Make sure the Latency Timer is sane. */ data = pci_cfgread(config_id, PCIR_LATTIMER, 1); if (data < PCI_DFLT_LTNCY) { data = PCI_DFLT_LTNCY; printf("%s: set PCI latency to %d\n", isp->isp_name, data); pci_cfgwrite(config_id, PCIR_LATTIMER, data, 1); } ISP_UNLOCK(isp); if (bus_dma_tag_create(NULL, 0, 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 1<<24, 255, 1<<24, 0, &pcs->parent_dmat) != 0) { printf("%s: could not create master dma tag\n", isp->isp_name); free(pcs, M_DEVBUF); return; } #endif if (pci_map_int(config_id, (void (*)(void *))isp_intr, (void *)isp, &IMASK) == 0) { printf("%s: could not map interrupt\n", isp->isp_name); free(pcs, M_DEVBUF); return; } pcs->pci_id = config_id; #ifdef SCSI_ISP_NO_FWLOAD_MASK if (SCSI_ISP_NO_FWLOAD_MASK && (SCSI_ISP_NO_FWLOAD_MASK & (1 << unit))) isp->isp_confopts |= ISP_CFG_NORELOAD; #endif #ifdef SCSI_ISP_NO_NVRAM_MASK if (SCSI_ISP_NO_NVRAM_MASK && (SCSI_ISP_NO_NVRAM_MASK & (1 << unit))) isp->isp_confopts |= ISP_CFG_NONVRAM; #endif ISP_LOCK(isp); isp_reset(isp); if (isp->isp_state != ISP_RESETSTATE) { ISP_UNLOCK(isp); free(pcs, M_DEVBUF); return; } isp_init(isp); if (isp->isp_state != ISP_INITSTATE) { isp_uninit(isp); ISP_UNLOCK(isp); free(pcs, M_DEVBUF); return; } isp_attach(isp); if (isp->isp_state != ISP_RUNSTATE) { isp_uninit(isp); free(pcs, M_DEVBUF); } ISP_UNLOCK(isp); #ifdef __alpha__ /* * THIS SHOULD NOT HAVE TO BE HERE */ alpha_register_pci_scsi(config_id->bus, config_id->slot, isp->isp_sim); #endif } #define PCI_BIU_REGS_OFF BIU_REGS_OFF static u_int16_t isp_pci_rd_reg(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(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); } } #if __FreeBSD_version >= 300004 static void isp_map_rquest __P((void *, bus_dma_segment_t *, int, int)); static void isp_map_result __P((void *, bus_dma_segment_t *, int, int)); static void isp_map_fcscrt __P((void *, bus_dma_segment_t *, int, int)); static void isp_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct ispsoftc *isp = (struct ispsoftc *) arg; isp->isp_rquest_dma = segs->ds_addr; } static void isp_map_result(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct ispsoftc *isp = (struct ispsoftc *) arg; isp->isp_result_dma = segs->ds_addr; } static void isp_map_fcscrt(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct ispsoftc *isp = (struct ispsoftc *) arg; fcparam *fcp = isp->isp_param; fcp->isp_scdma = segs->ds_addr; } static int isp_pci_mbxdma(struct ispsoftc *isp) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; caddr_t base; u_int32_t len; int i, error; /* * Allocate and map the request, result queues, plus FC scratch area. */ len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN); len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN); if (isp->isp_type & ISP_HA_FC) { len += ISP2100_SCRLEN; } if (bus_dma_tag_create(pci->parent_dmat, 0, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, len, 1, BUS_SPACE_MAXSIZE_32BIT, 0, &pci->cntrol_dmat) != 0) { printf("%s: cannot create a dma tag for control spaces\n", isp->isp_name); return (1); } if (bus_dmamem_alloc(pci->cntrol_dmat, (void **)&base, BUS_DMA_NOWAIT, &pci->cntrol_dmap) != 0) { printf("%s: cannot allocate %d bytes of CCB memory\n", isp->isp_name, len); return (1); } isp->isp_rquest = base; bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_rquest, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN), isp_map_rquest, pci, 0); isp->isp_result = base + ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN); bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_result, ISP_QUEUE_SIZE(RESULT_QUEUE_LEN), isp_map_result, pci, 0); if (isp->isp_type & ISP_HA_FC) { fcparam *fcp = (fcparam *) isp->isp_param; fcp->isp_scratch = isp->isp_result + ISP_QUEUE_SIZE(RESULT_QUEUE_LEN); bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, fcp->isp_scratch, ISP2100_SCRLEN, isp_map_fcscrt, pci, 0); } /* * Use this opportunity to initialize/create data DMA maps. */ for (i = 0; i < MAXISPREQUEST; i++) { error = bus_dmamap_create(pci->parent_dmat, 0, &pci->dmaps[i]); if (error) { printf("%s: error %d creating mailbox DMA maps\n", isp->isp_name, error); return (1); } } return (0); } static void dma2 __P((void *, bus_dma_segment_t *, int, int)); typedef struct { struct ispsoftc *isp; ISP_SCSI_XFER_T *ccb; ispreq_t *rq; u_int8_t *iptrp; u_int8_t optr; u_int error; } mush_t; #define MUSHERR_NOQENTRIES -2 static void dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error) { mush_t *mp; ISP_SCSI_XFER_T *ccb; struct ispsoftc *isp; struct isp_pcisoftc *pci; bus_dmamap_t *dp; bus_dma_segment_t *eseg; ispreq_t *rq; u_int8_t *iptrp; u_int8_t optr; ispcontreq_t *crq; int drq, seglim, datalen; mp = (mush_t *) arg; if (error) { mp->error = error; return; } isp = mp->isp; if (nseg < 1) { printf("%s: zero or negative segment count\n", isp->isp_name); mp->error = EFAULT; return; } ccb = mp->ccb; rq = mp->rq; iptrp = mp->iptrp; optr = mp->optr; pci = (struct isp_pcisoftc *)isp; dp = &pci->dmaps[rq->req_handle - 1]; if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_PREREAD); drq = REQFLAG_DATA_IN; } else { bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_PREWRITE); drq = REQFLAG_DATA_OUT; } datalen = XS_XFRLEN(ccb); if (isp->isp_type & ISP_HA_FC) { seglim = ISP_RQDSEG_T2; ((ispreqt2_t *)rq)->req_totalcnt = datalen; ((ispreqt2_t *)rq)->req_flags |= drq; } else { seglim = ISP_RQDSEG; rq->req_flags |= drq; } eseg = dm_segs + nseg; while (datalen != 0 && rq->req_seg_count < seglim && dm_segs != eseg) { if (isp->isp_type & ISP_HA_FC) { ispreqt2_t *rq2 = (ispreqt2_t *)rq; rq2->req_dataseg[rq2->req_seg_count].ds_base = dm_segs->ds_addr; rq2->req_dataseg[rq2->req_seg_count].ds_count = dm_segs->ds_len; } else { rq->req_dataseg[rq->req_seg_count].ds_base = dm_segs->ds_addr; rq->req_dataseg[rq->req_seg_count].ds_count = dm_segs->ds_len; } datalen -= dm_segs->ds_len; #if 0 if (isp->isp_type & ISP_HA_FC) { ispreqt2_t *rq2 = (ispreqt2_t *)rq; printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_seg_count, rq2->req_dataseg[rq2->req_seg_count].ds_count, rq2->req_dataseg[rq2->req_seg_count].ds_base); } else { printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_seg_count, rq->req_dataseg[rq->req_seg_count].ds_count, rq->req_dataseg[rq->req_seg_count].ds_base); } #endif rq->req_seg_count++; dm_segs++; } while (datalen > 0 && dm_segs != eseg) { crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp); *iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN); if (*iptrp == optr) { #if 0 printf("%s: Request Queue Overflow++\n", isp->isp_name); #endif mp->error = MUSHERR_NOQENTRIES; return; } 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; seglim = 0; while (datalen > 0 && seglim < ISP_CDSEG && dm_segs != eseg) { crq->req_dataseg[seglim].ds_base = dm_segs->ds_addr; crq->req_dataseg[seglim].ds_count = dm_segs->ds_len; #if 0 printf("%s: seg%d[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_header.rqs_entry_count-1, seglim, crq->req_dataseg[seglim].ds_count, crq->req_dataseg[seglim].ds_base); #endif rq->req_seg_count++; dm_segs++; seglim++; datalen -= dm_segs->ds_len; } } } static int isp_pci_dmasetup(struct ispsoftc *isp, ISP_SCSI_XFER_T *ccb, ispreq_t *rq, u_int8_t *iptrp, u_int8_t optr) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; struct ccb_hdr *ccb_h; struct ccb_scsiio *csio; bus_dmamap_t *dp; mush_t mush, *mp; csio = (struct ccb_scsiio *) ccb; ccb_h = &csio->ccb_h; if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_NONE) { rq->req_seg_count = 1; return (CMD_QUEUED); } dp = &pci->dmaps[rq->req_handle - 1]; /* * Do a virtual grapevine step to collect info for * the callback dma allocation that we have to use... */ mp = &mush; mp->isp = isp; mp->ccb = ccb; mp->rq = rq; mp->iptrp = iptrp; mp->optr = optr; mp->error = 0; if ((ccb_h->flags & CAM_SCATTER_VALID) == 0) { if ((ccb_h->flags & CAM_DATA_PHYS) == 0) { int error, s; s = splsoftvm(); error = bus_dmamap_load(pci->parent_dmat, *dp, csio->data_ptr, csio->dxfer_len, dma2, mp, 0); if (error == EINPROGRESS) { bus_dmamap_unload(pci->parent_dmat, *dp); mp->error = EINVAL; printf("%s: deferred dma allocation not " "supported\n", isp->isp_name); } else if (error && mp->error == 0) { mp->error = error; } splx(s); } else { /* Pointer to physical buffer */ struct bus_dma_segment seg; seg.ds_addr = (bus_addr_t)csio->data_ptr; seg.ds_len = csio->dxfer_len; dma2(mp, &seg, 1, 0); } } else { struct bus_dma_segment *segs; if ((ccb_h->flags & CAM_DATA_PHYS) != 0) { printf("%s: Physical segment pointers unsupported", isp->isp_name); mp->error = EINVAL; } else if ((ccb_h->flags & CAM_SG_LIST_PHYS) == 0) { printf("%s: Virtual segment addresses unsupported", isp->isp_name); mp->error = EINVAL; } else { /* Just use the segments provided */ segs = (struct bus_dma_segment *) csio->data_ptr; dma2(mp, segs, csio->sglist_cnt, 0); } } if (mp->error) { int retval = CMD_COMPLETE; if (mp->error == MUSHERR_NOQENTRIES) { retval = CMD_EAGAIN; ccb_h->status = CAM_UNREC_HBA_ERROR; } else if (mp->error == EFBIG) { ccb_h->status = CAM_REQ_TOO_BIG; } else if (mp->error == EINVAL) { ccb_h->status = CAM_REQ_INVALID; } else { ccb_h->status = CAM_UNREC_HBA_ERROR; } return (retval); } else { return (CMD_QUEUED); } } static void isp_pci_dmateardown(struct ispsoftc *isp, ISP_SCSI_XFER_T *ccb, u_int32_t handle) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; bus_dmamap_t *dp = &pci->dmaps[handle]; if ((ccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) { bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_POSTREAD); } else { bus_dmamap_sync(pci->parent_dmat, *dp, BUS_DMASYNC_POSTWRITE); } bus_dmamap_unload(pci->parent_dmat, *dp); } #else /* __FreeBSD_version >= 300004 */ static int isp_pci_mbxdma(struct ispsoftc *isp) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; u_int32_t len; int rseg; /* XXXX CHECK FOR ALIGNMENT */ /* * Allocate and map the request queue. */ len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN); isp->isp_rquest = malloc(len, M_DEVBUF, M_NOWAIT); if (isp->isp_rquest == NULL) { printf("%s: cannot malloc request queue\n", isp->isp_name); return (1); } isp->isp_rquest_dma = vtophys(isp->isp_rquest); #if 0 printf("RQUEST=0x%x (0x%x)...", isp->isp_rquest, isp->isp_rquest_dma); #endif /* * Allocate and map the result queue. */ len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN); isp->isp_result = malloc(len, M_DEVBUF, M_NOWAIT); if (isp->isp_result == NULL) { free(isp->isp_rquest, M_DEVBUF); printf("%s: cannot malloc result queue\n", isp->isp_name); return (1); } isp->isp_result_dma = vtophys(isp->isp_result); #if 0 printf("RESULT=0x%x (0x%x)\n", isp->isp_result, isp->isp_result_dma); #endif if (isp->isp_type & ISP_HA_FC) { fcparam *fcp = isp->isp_param; len = ISP2100_SCRLEN; fcp->isp_scratch = (volatile caddr_t) &pci->_z._y._b; fcp->isp_scdma = vtophys(fcp->isp_scratch); } return (0); } static int isp_pci_dmasetup(struct ispsoftc *isp, ISP_SCSI_XFER_T *xs, ispreq_t *rq, u_int8_t *iptrp, u_int8_t optr) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; ispcontreq_t *crq; vm_offset_t vaddr; int drq, seglim; u_int32_t paddr, nextpaddr, datalen, size, *ctrp; if (xs->datalen == 0) { rq->req_seg_count = 1; return (CMD_QUEUED); } 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_XFRLEN(xs); ((ispreqt2_t *)rq)->req_flags |= drq; } else { seglim = ISP_RQDSEG; rq->req_flags |= drq; } datalen = XS_XFRLEN(xs); vaddr = (vm_offset_t) xs->data; paddr = vtophys(vaddr); while (datalen != 0 && rq->req_seg_count < seglim) { if (isp->isp_type & ISP_HA_FC) { ispreqt2_t *rq2 = (ispreqt2_t *)rq; rq2->req_dataseg[rq2->req_seg_count].ds_base = paddr; ctrp = &rq2->req_dataseg[rq2->req_seg_count].ds_count; } else { rq->req_dataseg[rq->req_seg_count].ds_base = paddr; ctrp = &rq->req_dataseg[rq->req_seg_count].ds_count; } nextpaddr = paddr; *(ctrp) = 0; while (datalen != 0 && paddr == nextpaddr) { nextpaddr = (paddr & (~PAGE_MASK)) + PAGE_SIZE; size = nextpaddr - paddr; if (size > datalen) size = datalen; *(ctrp) += size; vaddr += size; datalen -= size; if (datalen != 0) paddr = vtophys(vaddr); } #if 0 if (isp->isp_type & ISP_HA_FC) { ispreqt2_t *rq2 = (ispreqt2_t *)rq; printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_seg_count, rq2->req_dataseg[rq2->req_seg_count].ds_count, rq2->req_dataseg[rq2->req_seg_count].ds_base); } else { printf("%s: seg0[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_seg_count, rq->req_dataseg[rq->req_seg_count].ds_count, rq->req_dataseg[rq->req_seg_count].ds_base); } #endif rq->req_seg_count++; } if (datalen == 0) return (CMD_QUEUED); paddr = vtophys(vaddr); while (datalen > 0) { crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp); *iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN); if (*iptrp == optr) { printf("%s: Request Queue Overflow\n", isp->isp_name); XS_SETERR(xs, HBA_BOTCH); return (CMD_EAGAIN); } 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 (seglim = 0; datalen != 0 && seglim < ISP_CDSEG; seglim++) { crq->req_dataseg[seglim].ds_base = paddr; ctrp = &crq->req_dataseg[seglim].ds_count; *(ctrp) = 0; nextpaddr = paddr; while (datalen != 0 && paddr == nextpaddr) { nextpaddr = (paddr & (~PAGE_MASK)) + PAGE_SIZE; size = nextpaddr - paddr; if (size > datalen) size = datalen; *(ctrp) += size; vaddr += size; datalen -= size; if (datalen != 0) paddr = vtophys(vaddr); } #if 0 printf("%s: seg%d[%d] cnt 0x%x paddr 0x%08x\n", isp->isp_name, rq->req_header.rqs_entry_count-1, seglim, crq->req_dataseg[seglim].ds_count, crq->req_dataseg[seglim].ds_base); #endif rq->req_seg_count++; } } return (CMD_QUEUED); } #endif static void isp_pci_reset1(struct ispsoftc *isp) { /* Make sure the BIOS is disabled */ isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS); } static void isp_pci_dumpregs(struct ispsoftc *isp) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; printf("%s: PCI Status Command/Status=%lx\n", pci->pci_isp.isp_name, pci_conf_read(pci->pci_id, PCIR_COMMAND)); }