/* $FreeBSD: head/sys/dev/isp/isp_pci.c 52351 1999-10-17 19:03:11Z mjacob $ */ /* * PCI specific probe and attach routines for Qlogic ISP SCSI adapters. * FreeBSD Version. * *--------------------------------------- * Copyright (c) 1997, 1998, 1999 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 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)); #ifndef ISP_DISABLE_1080_SUPPORT static u_int16_t isp_pci_rd_reg_1080 __P((struct ispsoftc *, int)); static void isp_pci_wr_reg_1080 __P((struct ispsoftc *, int, u_int16_t)); #endif 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)); static void isp_pci_dmateardown __P((struct ispsoftc *, ISP_SCSI_XFER_T *, u_int32_t)); static void isp_pci_reset1 __P((struct ispsoftc *)); static void isp_pci_dumpregs __P((struct ispsoftc *)); #ifndef ISP_DISABLE_1020_SUPPORT 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, 0, BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64, 0 }; #endif #ifndef ISP_DISABLE_1080_SUPPORT static struct ispmdvec mdvec_1080 = { isp_pci_rd_reg_1080, isp_pci_wr_reg_1080, isp_pci_mbxdma, isp_pci_dmasetup, isp_pci_dmateardown, NULL, isp_pci_reset1, isp_pci_dumpregs, ISP1080_RISC_CODE, ISP1080_CODE_LENGTH, ISP1080_CODE_ORG, 0, BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64, 0 }; #endif #ifndef ISP_DISABLE_2100_SUPPORT 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, 0, 0, 0 }; #endif #ifndef ISP_DISABLE_2200_SUPPORT static struct ispmdvec mdvec_2200 = { isp_pci_rd_reg, isp_pci_wr_reg, isp_pci_mbxdma, isp_pci_dmasetup, isp_pci_dmateardown, NULL, isp_pci_reset1, isp_pci_dumpregs, ISP2200_RISC_CODE, ISP2200_CODE_LENGTH, ISP2100_CODE_ORG, 0, 0, 0 }; #endif #ifndef SCSI_ISP_PREFER_MEM_MAP #define SCSI_ISP_PREFER_MEM_MAP 0 #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 PCIR_ROMADDR #define PCIR_ROMADDR 0x30 #endif #ifndef PCI_VENDOR_QLOGIC #define PCI_VENDOR_QLOGIC 0x1077 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP1020 #define PCI_PRODUCT_QLOGIC_ISP1020 0x1020 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP1080 #define PCI_PRODUCT_QLOGIC_ISP1080 0x1080 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP1240 #define PCI_PRODUCT_QLOGIC_ISP1240 0x1240 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP2100 #define PCI_PRODUCT_QLOGIC_ISP2100 0x2100 #endif #ifndef PCI_PRODUCT_QLOGIC_ISP2200 #define PCI_PRODUCT_QLOGIC_ISP2200 0x2200 #endif #define PCI_QLOGIC_ISP ((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC) #define PCI_QLOGIC_ISP1080 \ ((PCI_PRODUCT_QLOGIC_ISP1080 << 16) | PCI_VENDOR_QLOGIC) #define PCI_QLOGIC_ISP1240 \ ((PCI_PRODUCT_QLOGIC_ISP1240 << 16) | PCI_VENDOR_QLOGIC) #define PCI_QLOGIC_ISP2100 \ ((PCI_PRODUCT_QLOGIC_ISP2100 << 16) | PCI_VENDOR_QLOGIC) #define PCI_QLOGIC_ISP2200 \ ((PCI_PRODUCT_QLOGIC_ISP2200 << 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 */ #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 struct isp_pcisoftc { struct ispsoftc pci_isp; pcici_t pci_id; bus_space_tag_t pci_st; bus_space_handle_t pci_sh; int16_t pci_poff[_NREG_BLKS]; bus_dma_tag_t parent_dmat; bus_dma_tag_t cntrol_dmat; bus_dmamap_t cntrol_dmap; bus_dmamap_t *dmaps; }; static u_long ispunit; static struct pci_device isp_pci_driver = { "isp", isp_pci_probe, isp_pci_attach, &ispunit, NULL }; COMPAT_PCI_DRIVER (isp_pci, isp_pci_driver); static const char * isp_pci_probe(pcici_t tag, pcidi_t type) { static int oneshot = 1; char *x; switch (type) { #ifndef ISP_DISABLE_1020_SUPPORT case PCI_QLOGIC_ISP: x = "Qlogic ISP 1020/1040 PCI SCSI Adapter"; break; #endif #ifndef ISP_DISABLE_1080_SUPPORT case PCI_QLOGIC_ISP1080: x = "Qlogic ISP 1080 PCI SCSI Adapter"; break; case PCI_QLOGIC_ISP1240: x = "Qlogic ISP 1240 PCI SCSI Adapter"; break; #endif #ifndef ISP_DISABLE_2100_SUPPORT case PCI_QLOGIC_ISP2100: x = "Qlogic ISP 2100 PCI FC-AL Adapter"; break; #endif #ifndef ISP_DISABLE_2200_SUPPORT case PCI_QLOGIC_ISP2200: x = "Qlogic ISP 2200 PCI FC-AL Adapter"; break; #endif default: return (NULL); } if (oneshot) { oneshot = 0; CFGPRINTF("Qlogic ISP Driver, FreeBSD Version %d.%d, " "Core Version %d.%d\n", 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 cfid, int unit) { int mapped, prefer_mem_map, bitmap; pci_port_t io_port; u_int32_t data, linesz, psize, basetype; struct isp_pcisoftc *pcs; struct ispsoftc *isp; vm_offset_t vaddr, paddr; struct ispmdvec *mdvp; bus_size_t lim; 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)); /* * Figure out if we're supposed to skip this one. */ if (getenv_int("isp_disable", &bitmap)) { if (bitmap & (1 << unit)) { printf("isp%d: not configuring\n", unit); return; } } /* * Figure out which we should try first - memory mapping or i/o mapping? */ #if SCSI_ISP_PREFER_MEM_MAP == 1 prefer_mem_map = 1; #else prefer_mem_map = 0; #endif bitmap = 0; if (getenv_int("isp_mem_map", &bitmap)) { if (bitmap & (1 << unit)) prefer_mem_map = 1; } bitmap = 0; if (getenv_int("isp_io_map", &bitmap)) { if (bitmap & (1 << unit)) prefer_mem_map = 0; } vaddr = paddr = NULL; mapped = 0; linesz = PCI_DFLT_LNSZ; /* * Note that pci_conf_read is a 32 bit word aligned function. */ data = pci_conf_read(cfid, PCIR_COMMAND); if (prefer_mem_map) { if (data & PCI_COMMAND_MEM_ENABLE) { if (pci_map_mem(cfid, 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(cfid, PCI_MAP_REG_START, &io_port)) { pcs->pci_st = IO_SPACE_MAPPING; pcs->pci_sh = io_port; mapped++; } } } else { if (data & PCI_COMMAND_IO_ENABLE) { if (pci_map_port(cfid, 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(cfid, MEM_MAP_REG, &vaddr, &paddr)) { pcs->pci_st = MEM_SPACE_MAPPING; pcs->pci_sh = vaddr; mapped++; } } } if (mapped == 0) { printf("isp%d: unable to map any ports!\n", unit); free(pcs, M_DEVBUF); return; } if (bootverbose) printf("isp%d: using %s space register mapping\n", unit, pcs->pci_st == IO_SPACE_MAPPING? "I/O" : "Memory"); data = pci_conf_read(cfid, PCI_ID_REG); pcs->pci_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF; pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS_OFF; pcs->pci_poff[SXP_BLOCK >> _BLK_REG_SHFT] = PCI_SXP_REGS_OFF; pcs->pci_poff[RISC_BLOCK >> _BLK_REG_SHFT] = PCI_RISC_REGS_OFF; pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF; /* * GCC! */ mdvp = &mdvec; basetype = ISP_HA_SCSI_UNKNOWN; psize = sizeof (sdparam); lim = BUS_SPACE_MAXSIZE_32BIT; #ifndef ISP_DISABLE_1020_SUPPORT if (data == PCI_QLOGIC_ISP) { mdvp = &mdvec; basetype = ISP_HA_SCSI_UNKNOWN; psize = sizeof (sdparam); lim = BUS_SPACE_MAXSIZE_24BIT; } #endif #ifndef ISP_DISABLE_1080_SUPPORT if (data == PCI_QLOGIC_ISP1080) { mdvp = &mdvec_1080; basetype = ISP_HA_SCSI_1080; psize = sizeof (sdparam); pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF; } if (data == PCI_QLOGIC_ISP1240) { mdvp = &mdvec_1080; basetype = ISP_HA_SCSI_12X0; psize = 2 * sizeof (sdparam); pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF; } #endif #ifndef ISP_DISABLE_2100_SUPPORT if (data == PCI_QLOGIC_ISP2100) { mdvp = &mdvec_2100; basetype = ISP_HA_FC_2100; psize = sizeof (fcparam); pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF; data = pci_conf_read(cfid, PCI_CLASS_REG); if ((data & 0xff) < 3) { /* * XXX: Need to get the actual revision * XXX: number of the 2100 FB. At any rate, * XXX: lower cache line size for early revision * XXX; boards. */ linesz = 1; } } #endif #ifndef ISP_DISABLE_2200_SUPPORT if (data == PCI_QLOGIC_ISP2200) { mdvp = &mdvec_2200; basetype = ISP_HA_FC_2200; psize = sizeof (fcparam); pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF; } #endif isp = &pcs->pci_isp; isp->isp_param = malloc(psize, M_DEVBUF, M_NOWAIT); if (isp->isp_param == NULL) { printf("isp%d: cannot allocate parameter data\n", unit); return; } bzero(isp->isp_param, psize); isp->isp_mdvec = mdvp; isp->isp_type = basetype; (void) snprintf(isp->isp_name, sizeof (isp->isp_name), "isp%d", unit); isp->isp_osinfo.unit = unit; ISP_LOCK(isp); /* * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER * are set. */ data = pci_cfgread(cfid, PCIR_COMMAND, 2); data |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN; pci_cfgwrite(cfid, PCIR_COMMAND, 2, data); /* * Make sure the Cache Line Size register is set sensibly. */ data = pci_cfgread(cfid, PCIR_CACHELNSZ, 1); if (data != linesz) { data = PCI_DFLT_LNSZ; CFGPRINTF("%s: set PCI line size to %d\n", isp->isp_name, data); pci_cfgwrite(cfid, PCIR_CACHELNSZ, data, 1); } /* * Make sure the Latency Timer is sane. */ data = pci_cfgread(cfid, PCIR_LATTIMER, 1); if (data < PCI_DFLT_LTNCY) { data = PCI_DFLT_LTNCY; CFGPRINTF("%s: set PCI latency to %d\n", isp->isp_name, data); pci_cfgwrite(cfid, PCIR_LATTIMER, data, 1); } /* * Make sure we've disabled the ROM. */ data = pci_cfgread(cfid, PCIR_ROMADDR, 4); data &= ~1; pci_cfgwrite(cfid, PCIR_ROMADDR, data, 4); ISP_UNLOCK(isp); if (bus_dma_tag_create(NULL, 1, 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, lim + 1, 255, lim, 0, &pcs->parent_dmat) != 0) { printf("%s: could not create master dma tag\n", isp->isp_name); free(pcs, M_DEVBUF); return; } if (pci_map_int(cfid, (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 = cfid; #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 if (getenv_int("isp_no_fwload", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts |= ISP_CFG_NORELOAD; } if (getenv_int("isp_fwload", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts &= ~ISP_CFG_NORELOAD; } #ifdef SCSI_ISP_NO_NVRAM_MASK if (SCSI_ISP_NO_NVRAM_MASK && (SCSI_ISP_NO_NVRAM_MASK & (1 << unit))) { printf("%s: ignoring NVRAM\n", isp->isp_name); isp->isp_confopts |= ISP_CFG_NONVRAM; } #endif if (getenv_int("isp_no_nvram", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts |= ISP_CFG_NONVRAM; } if (getenv_int("isp_nvram", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts &= ~ISP_CFG_NONVRAM; } #ifdef SCSI_ISP_FCDUPLEX if (IS_FC(isp)) { if (SCSI_ISP_FCDUPLEX && (SCSI_ISP_FCDUPLEX & (1 << unit))) { isp->isp_confopts |= ISP_CFG_FULL_DUPLEX; } } #endif if (getenv_int("isp_fcduplex", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts |= ISP_CFG_FULL_DUPLEX; } if (getenv_int("isp_no_fcduplex", &bitmap)) { if (bitmap & (1 << unit)) isp->isp_confopts &= ~ISP_CFG_FULL_DUPLEX; } if (getenv_int("isp_seed", &isp->isp_osinfo.seed)) { isp->isp_osinfo.seed <<= 8; isp->isp_osinfo.seed += (unit + 1); } else { /* * poor man's attempt at pseudo randomness. */ long i = (intptr_t) isp; i >>= 5; i &= 0x7; /* * This isn't very random, but it's the best we can do for * the real edge case of cards that don't have WWNs. */ isp->isp_osinfo.seed += ((int) cfid->bus) << 16; isp->isp_osinfo.seed += ((int) cfid->slot) << 8; isp->isp_osinfo.seed += ((int) cfid->func); while (version[i]) isp->isp_osinfo.seed += (int) version[i++]; isp->isp_osinfo.seed <<= 8; isp->isp_osinfo.seed += (unit + 1); } (void) getenv_int("isp_debug", &isp_debug); ISP_LOCK(isp); isp_reset(isp); if (isp->isp_state != ISP_RESETSTATE) { (void) pci_unmap_int(cfid); ISP_UNLOCK(isp); free(pcs, M_DEVBUF); return; } isp_init(isp); if (isp->isp_state != ISP_INITSTATE) { /* If we're a Fibre Channel Card, we allow deferred attach */ if (IS_SCSI(isp)) { isp_uninit(isp); (void) pci_unmap_int(cfid); /* Does nothing */ ISP_UNLOCK(isp); free(pcs, M_DEVBUF); return; } } isp_attach(isp); if (isp->isp_state != ISP_RUNSTATE) { /* If we're a Fibre Channel Card, we allow deferred attach */ if (IS_SCSI(isp)) { isp_uninit(isp); (void) pci_unmap_int(cfid); /* Does nothing */ ISP_UNLOCK(isp); free(pcs, M_DEVBUF); return; } } ISP_UNLOCK(isp); #ifdef __alpha__ /* * THIS SHOULD NOT HAVE TO BE HERE */ alpha_register_pci_scsi(cfid->bus, cfid->slot, isp->isp_sim); #endif } 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, oldconf = 0; if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { /* * We will assume that someone has paused the RISC processor. */ oldconf = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oldconf | BIU_PCI_CONF1_SXP); } offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); rv = bus_space_read_2(pcs->pci_st, pcs->pci_sh, offset); if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { isp_pci_wr_reg(isp, BIU_CONF1, oldconf); } 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, oldconf = 0; if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { /* * We will assume that someone has paused the RISC processor. */ oldconf = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oldconf | BIU_PCI_CONF1_SXP); } offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); bus_space_write_2(pcs->pci_st, pcs->pci_sh, offset, val); if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { isp_pci_wr_reg(isp, BIU_CONF1, oldconf); } } #ifndef ISP_DISABLE_1080_SUPPORT static u_int16_t isp_pci_rd_reg_1080(isp, regoff) struct ispsoftc *isp; int regoff; { u_int16_t rv; struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp; int offset, oc = 0; if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { /* * We will assume that someone has paused the RISC processor. */ oc = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_SXP); } else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) { oc = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_DMA); } offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); rv = bus_space_read_2(pcs->pci_st, pcs->pci_sh, offset); if ((regoff & _BLK_REG_MASK) == SXP_BLOCK || ((regoff & _BLK_REG_MASK) == DMA_BLOCK)) { isp_pci_wr_reg(isp, BIU_CONF1, oc); } return (rv); } static void isp_pci_wr_reg_1080(isp, regoff, val) struct ispsoftc *isp; int regoff; u_int16_t val; { struct isp_pcisoftc *pcs = (struct isp_pcisoftc *) isp; int offset, oc = 0; if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) { /* * We will assume that someone has paused the RISC processor. */ oc = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_SXP); } else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) { oc = isp_pci_rd_reg(isp, BIU_CONF1); isp_pci_wr_reg(isp, BIU_CONF1, oc | BIU_PCI1080_CONF1_DMA); } offset = pcs->pci_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT]; offset += (regoff & 0xff); bus_space_write_2(pcs->pci_st, pcs->pci_sh, offset, val); if ((regoff & _BLK_REG_MASK) == SXP_BLOCK || ((regoff & _BLK_REG_MASK) == DMA_BLOCK)) { isp_pci_wr_reg(isp, BIU_CONF1, oc); } } #endif 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)); struct imush { struct ispsoftc *isp; int error; }; static void isp_map_rquest(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct imush *imushp = (struct imush *) arg; if (error) { imushp->error = error; } else { imushp->isp->isp_rquest_dma = segs->ds_addr; } } static void isp_map_result(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct imush *imushp = (struct imush *) arg; if (error) { imushp->error = error; } else { imushp->isp->isp_result_dma = segs->ds_addr; } } static void isp_map_fcscrt(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct imush *imushp = (struct imush *) arg; if (error) { imushp->error = error; } else { fcparam *fcp = imushp->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; bus_size_t lim; struct imush im; /* * Already been here? If so, leave... */ if (isp->isp_rquest) { return (0); } len = sizeof (ISP_SCSI_XFER_T **) * isp->isp_maxcmds; isp->isp_xflist = (ISP_SCSI_XFER_T **) malloc(len, M_DEVBUF, M_WAITOK); if (isp->isp_xflist == NULL) { printf("%s: can't alloc xflist array\n", isp->isp_name); return (1); } bzero(isp->isp_xflist, len); len = sizeof (bus_dmamap_t) * isp->isp_maxcmds; pci->dmaps = (bus_dmamap_t *) malloc(len, M_DEVBUF, M_WAITOK); if (pci->dmaps == NULL) { printf("%s: can't alloc dma maps\n", isp->isp_name); free(isp->isp_xflist, M_DEVBUF); return (1); } if (IS_FC(isp) || IS_1080(isp) || IS_12X0(isp)) lim = BUS_SPACE_MAXADDR + 1; else lim = BUS_SPACE_MAXADDR_24BIT + 1; /* * 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 (IS_FC(isp)) { len += ISP2100_SCRLEN; } if (bus_dma_tag_create(pci->parent_dmat, PAGE_SIZE, lim, 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); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); 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); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); return (1); } isp->isp_rquest = base; im.isp = isp; im.error = 0; bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_rquest, ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN), isp_map_rquest, &im, 0); if (im.error) { printf("%s: error %d loading dma map for DMA request queue\n", isp->isp_name, im.error); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); isp->isp_rquest = NULL; return (1); } isp->isp_result = base + ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN); im.error = 0; bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, isp->isp_result, ISP_QUEUE_SIZE(RESULT_QUEUE_LEN), isp_map_result, &im, 0); if (im.error) { printf("%s: error %d loading dma map for DMA result queue\n", isp->isp_name, im.error); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); isp->isp_rquest = NULL; return (1); } for (i = 0; i < isp->isp_maxcmds; i++) { error = bus_dmamap_create(pci->parent_dmat, 0, &pci->dmaps[i]); if (error) { printf("%s: error %d creating per-cmd DMA maps\n", isp->isp_name, error); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); isp->isp_rquest = NULL; return (1); } } if (IS_FC(isp)) { fcparam *fcp = (fcparam *) isp->isp_param; fcp->isp_scratch = base + ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN) + ISP_QUEUE_SIZE(RESULT_QUEUE_LEN); im.error = 0; bus_dmamap_load(pci->cntrol_dmat, pci->cntrol_dmap, fcp->isp_scratch, ISP2100_SCRLEN, isp_map_fcscrt, &im, 0); if (im.error) { printf("%s: error %d loading FC scratch area\n", isp->isp_name, im.error); free(isp->isp_xflist, M_DEVBUF); free(pci->dmaps, M_DEVBUF); isp->isp_rquest = NULL; 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 (IS_FC(isp)) { 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 (IS_FC(isp)) { 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 (IS_FC(isp)) { 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 = NULL; 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); } /* * 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; dp = &pci->dmaps[rq->req_handle - 1]; 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) { #ifdef DIAGNOSTIC printf("%s: error %d in dma mapping code\n", isp->isp_name, error); #endif 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; } else if (mp->error == EFBIG) { XS_SETERR(csio, CAM_REQ_TOO_BIG); } else if (mp->error == EINVAL) { XS_SETERR(csio, CAM_REQ_INVALID); } else { XS_SETERR(csio, CAM_UNREC_HBA_ERROR); } return (retval); } else { /* * Check to see if we weren't cancelled while sleeping on * getting DMA resources... */ if ((ccb_h->status & CAM_STATUS_MASK) != CAM_REQ_INPROG) { if (dp) { bus_dmamap_unload(pci->parent_dmat, *dp); } return (CMD_COMPLETE); } return (CMD_QUEUED); } } static void isp_pci_dmateardown(struct ispsoftc *isp, ISP_SCSI_XFER_T *xs, u_int32_t handle) { struct isp_pcisoftc *pci = (struct isp_pcisoftc *)isp; bus_dmamap_t *dp = &pci->dmaps[handle - 1]; KASSERT((handle > 0 && handle <= isp->isp_maxcmds), ("bad handle in isp_pci_dmateardonw")); if ((xs->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); } 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)); }