/* $FreeBSD$ */ /* * Copyright (c) 2000-01 Intel Corporation * 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, this list of conditions, and the following disclaimer, * without modification, immediately at the beginning of the file. * 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. * */ /* * iir_pci.c: PCI Bus Attachment for Intel Integrated RAID Controller driver * * Written by: Achim Leubner * Fixes/Additions: Boji Tony Kannanthanam * * TODO: */ #ident "$Id: iir_pci.c 1.1 2001/05/22 20:14:12 achim Exp $" /* #include "opt_iir.h" */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* Mapping registers for various areas */ #define PCI_DPMEM PCIR_MAPS /* Product numbers for Fibre-Channel are greater than or equal to 0x200 */ #define GDT_PCI_PRODUCT_FC 0x200 /* PCI SRAM structure */ #define GDT_MAGIC 0x00 /* u_int32_t, controller ID from BIOS */ #define GDT_NEED_DEINIT 0x04 /* u_int16_t, switch between BIOS/driver */ #define GDT_SWITCH_SUPPORT 0x06 /* u_int8_t, see GDT_NEED_DEINIT */ #define GDT_OS_USED 0x10 /* u_int8_t [16], OS code per service */ #define GDT_FW_MAGIC 0x3c /* u_int8_t, controller ID from firmware */ #define GDT_SRAM_SZ 0x40 /* DPRAM PCI controllers */ #define GDT_DPR_IF 0x00 /* interface area */ #define GDT_6SR (0xff0 - GDT_SRAM_SZ) #define GDT_SEMA1 0xff1 /* volatile u_int8_t, command semaphore */ #define GDT_IRQEN 0xff5 /* u_int8_t, board interrupts enable */ #define GDT_EVENT 0xff8 /* u_int8_t, release event */ #define GDT_IRQDEL 0xffc /* u_int8_t, acknowledge board interrupt */ #define GDT_DPRAM_SZ 0x1000 /* PLX register structure (new PCI controllers) */ #define GDT_CFG_REG 0x00 /* u_int8_t, DPRAM cfg. (2: < 1MB, 0: any) */ #define GDT_SEMA0_REG 0x40 /* volatile u_int8_t, command semaphore */ #define GDT_SEMA1_REG 0x41 /* volatile u_int8_t, status semaphore */ #define GDT_PLX_STATUS 0x44 /* volatile u_int16_t, command status */ #define GDT_PLX_SERVICE 0x46 /* u_int16_t, service */ #define GDT_PLX_INFO 0x48 /* u_int32_t [2], additional info */ #define GDT_LDOOR_REG 0x60 /* u_int8_t, PCI to local doorbell */ #define GDT_EDOOR_REG 0x64 /* volatile u_int8_t, local to PCI doorbell */ #define GDT_CONTROL0 0x68 /* u_int8_t, control0 register (unused) */ #define GDT_CONTROL1 0x69 /* u_int8_t, board interrupts enable */ #define GDT_PLX_SZ 0x80 /* DPRAM new PCI controllers */ #define GDT_IC 0x00 /* interface */ #define GDT_PCINEW_6SR (0x4000 - GDT_SRAM_SZ) /* SRAM structure */ #define GDT_PCINEW_SZ 0x4000 /* i960 register structure (PCI MPR controllers) */ #define GDT_MPR_SEMA0 0x10 /* volatile u_int8_t, command semaphore */ #define GDT_MPR_SEMA1 0x12 /* volatile u_int8_t, status semaphore */ #define GDT_MPR_STATUS 0x14 /* volatile u_int16_t, command status */ #define GDT_MPR_SERVICE 0x16 /* u_int16_t, service */ #define GDT_MPR_INFO 0x18 /* u_int32_t [2], additional info */ #define GDT_MPR_LDOOR 0x20 /* u_int8_t, PCI to local doorbell */ #define GDT_MPR_EDOOR 0x2c /* volatile u_int8_t, locl to PCI doorbell */ #define GDT_EDOOR_EN 0x34 /* u_int8_t, board interrupts enable */ #define GDT_SEVERITY 0xefc /* u_int8_t, event severity */ #define GDT_EVT_BUF 0xf00 /* u_int8_t [256], event buffer */ #define GDT_I960_SZ 0x1000 /* DPRAM PCI MPR controllers */ #define GDT_I960R 0x00 /* 4KB i960 registers */ #define GDT_MPR_IC GDT_I960_SZ /* i960 register area */ #define GDT_MPR_6SR (GDT_I960_SZ + 0x3000 - GDT_SRAM_SZ) /* DPRAM struct. */ #define GDT_MPR_SZ (0x3000 - GDT_SRAM_SZ) static int iir_pci_probe __P((device_t dev)); static int iir_pci_attach __P((device_t dev)); void gdt_pci_enable_intr __P((struct gdt_softc *)); void gdt_mpr_copy_cmd __P((struct gdt_softc *, struct gdt_ccb *)); u_int8_t gdt_mpr_get_status __P((struct gdt_softc *)); void gdt_mpr_intr __P((struct gdt_softc *, struct gdt_intr_ctx *)); void gdt_mpr_release_event __P((struct gdt_softc *)); void gdt_mpr_set_sema0 __P((struct gdt_softc *)); int gdt_mpr_test_busy __P((struct gdt_softc *)); static device_method_t iir_pci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, iir_pci_probe), DEVMETHOD(device_attach, iir_pci_attach), { 0, 0} }; static driver_t iir_pci_driver = { "iir", iir_pci_methods, sizeof(struct gdt_softc) }; static devclass_t iir_devclass; DRIVER_MODULE(iir, pci, iir_pci_driver, iir_devclass, 0, 0); static int iir_pci_probe(device_t dev) { if (pci_get_vendor(dev) == INTEL_VENDOR_ID && pci_get_device(dev) == INTEL_DEVICE_ID_IIR) { device_set_desc(dev, "Intel Integrated RAID Controller"); return (0); } if (pci_get_vendor(dev) == GDT_VENDOR_ID && ((pci_get_device(dev) >= GDT_DEVICE_ID_MIN && pci_get_device(dev) <= GDT_DEVICE_ID_MAX) || pci_get_device(dev) == GDT_DEVICE_ID_NEWRX)) { device_set_desc(dev, "ICP Disk Array Controller"); return (0); } return (ENXIO); } static int iir_pci_attach(device_t dev) { struct gdt_softc *gdt; struct resource *io = NULL, *irq = NULL; int retries, rid, error = 0; void *ih; u_int8_t protocol; /* map DPMEM */ rid = PCI_DPMEM; io = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0, 1, RF_ACTIVE); if (io == NULL) { device_printf(dev, "can't allocate register resources\n"); error = ENOMEM; goto err; } /* get IRQ */ rid = 0; irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE | RF_SHAREABLE); if (io == NULL) { device_printf(dev, "can't find IRQ value\n"); error = ENOMEM; goto err; } gdt = device_get_softc(dev); bzero(gdt, sizeof(struct gdt_softc)); gdt->sc_init_level = 0; gdt->sc_dpmemt = rman_get_bustag(io); gdt->sc_dpmemh = rman_get_bushandle(io); gdt->sc_dpmembase = rman_get_start(io); gdt->sc_hanum = device_get_unit(dev); gdt->sc_bus = pci_get_bus(dev); gdt->sc_slot = pci_get_slot(dev); gdt->sc_device = pci_get_device(dev); gdt->sc_subdevice = pci_get_subdevice(dev); gdt->sc_class = GDT_MPR; /* no FC ctr. if (gdt->sc_device >= GDT_PCI_PRODUCT_FC) gdt->sc_class |= GDT_FC; */ /* initialize RP controller */ /* check and reset interface area */ bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC, htole32(GDT_MPR_MAGIC)); if (bus_space_read_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC) != htole32(GDT_MPR_MAGIC)) { printf("cannot access DPMEM at 0x%x (shadowed?)\n", gdt->sc_dpmembase); error = ENXIO; goto err; } bus_space_set_region_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_I960_SZ, htole32(0), GDT_MPR_SZ >> 2); /* Disable everything */ bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_EDOOR_EN, bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_EDOOR_EN) | 4); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_EDOOR, 0xff); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_STATUS, 0); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_CMD_INDEX, 0); bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO, htole32(gdt->sc_dpmembase)); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_CMD_INDX, 0xff); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_LDOOR, 1); DELAY(20); retries = GDT_RETRIES; while (bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_STATUS) != 0xff) { if (--retries == 0) { printf("DEINIT failed\n"); error = ENXIO; goto err; } DELAY(1); } protocol = (u_int8_t)letoh32(bus_space_read_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO)); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_STATUS, 0); if (protocol != GDT_PROTOCOL_VERSION) { printf("unsupported protocol %d\n", protocol); error = ENXIO; goto err; } /* special commnd to controller BIOS */ bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO, htole32(0)); bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO + sizeof (u_int32_t), htole32(0)); bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO + 2 * sizeof (u_int32_t), htole32(1)); bus_space_write_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_INFO + 3 * sizeof (u_int32_t), htole32(0)); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_CMD_INDX, 0xfe); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_LDOOR, 1); DELAY(20); retries = GDT_RETRIES; while (bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_STATUS) != 0xfe) { if (--retries == 0) { printf("initialization error\n"); error = ENXIO; goto err; } DELAY(1); } bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_S_STATUS, 0); gdt->sc_ic_all_size = GDT_MPR_SZ; gdt->sc_copy_cmd = gdt_mpr_copy_cmd; gdt->sc_get_status = gdt_mpr_get_status; gdt->sc_intr = gdt_mpr_intr; gdt->sc_release_event = gdt_mpr_release_event; gdt->sc_set_sema0 = gdt_mpr_set_sema0; gdt->sc_test_busy = gdt_mpr_test_busy; /* Allocate a dmatag representing the capabilities of this attachment */ /* XXX Should be a child of the PCI bus dma tag */ if (bus_dma_tag_create(/*parent*/NULL, /*alignemnt*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, /*nsegments*/GDT_MAXSG, /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, &gdt->sc_parent_dmat) != 0) { error = ENXIO; goto err; } gdt->sc_init_level++; if (iir_init(gdt) != 0) { iir_free(gdt); error = ENXIO; goto err; } /* Register with the XPT */ iir_attach(gdt); /* associate interrupt handler */ if (bus_setup_intr( dev, irq, INTR_TYPE_CAM, iir_intr, gdt, &ih )) { device_printf(dev, "Unable to register interrupt handler\n"); error = ENXIO; goto err; } gdt_pci_enable_intr(gdt); return (0); err: if (irq) bus_release_resource( dev, SYS_RES_IRQ, 0, irq ); /* if (io) bus_release_resource( dev, SYS_RES_MEMORY, rid, io ); */ return (error); } /* Enable interrupts */ void gdt_pci_enable_intr(struct gdt_softc *gdt) { GDT_DPRINTF(GDT_D_INTR, ("gdt_pci_enable_intr(%p) ", gdt)); switch(GDT_CLASS(gdt)) { case GDT_MPR: bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_EDOOR, 0xff); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_EDOOR_EN, bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_EDOOR_EN) & ~4); break; } } /* * MPR PCI controller-specific functions */ void gdt_mpr_copy_cmd(struct gdt_softc *gdt, struct gdt_ccb *ccb) { u_int16_t cp_count = roundup(gdt->sc_cmd_len, sizeof (u_int32_t)); u_int16_t dp_offset = gdt->sc_cmd_off; u_int16_t cmd_no = gdt->sc_cmd_cnt++; GDT_DPRINTF(GDT_D_CMD, ("gdt_mpr_copy_cmd(%p) ", gdt)); gdt->sc_cmd_off += cp_count; bus_space_write_2(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_COMM_QUEUE + cmd_no * GDT_COMM_Q_SZ + GDT_OFFSET, htole16(GDT_DPMEM_COMMAND_OFFSET + dp_offset)); bus_space_write_2(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_COMM_QUEUE + cmd_no * GDT_COMM_Q_SZ + GDT_SERV_ID, htole16(ccb->gc_service)); bus_space_write_region_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_IC + GDT_DPR_CMD + dp_offset, (u_int32_t *)gdt->sc_cmd, cp_count >> 2); } u_int8_t gdt_mpr_get_status(struct gdt_softc *gdt) { GDT_DPRINTF(GDT_D_MISC, ("gdt_mpr_get_status(%p) ", gdt)); return bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_EDOOR); } void gdt_mpr_intr(struct gdt_softc *gdt, struct gdt_intr_ctx *ctx) { int i; GDT_DPRINTF(GDT_D_INTR, ("gdt_mpr_intr(%p) ", gdt)); if (ctx->istatus & 0x80) { /* error flag */ ctx->istatus &= ~0x80; ctx->cmd_status = bus_space_read_2(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_STATUS); } else /* no error */ ctx->cmd_status = GDT_S_OK; ctx->info = bus_space_read_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_INFO); ctx->service = bus_space_read_2(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_SERVICE); ctx->info2 = bus_space_read_4(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_INFO + sizeof (u_int32_t)); /* event string */ if (ctx->istatus == GDT_ASYNCINDEX) { if (ctx->service != GDT_SCREENSERVICE && (gdt->sc_fw_vers & 0xff) >= 0x1a) { gdt->sc_dvr.severity = bus_space_read_1(gdt->sc_dpmemt,gdt->sc_dpmemh, GDT_SEVERITY); for (i = 0; i < 256; ++i) { gdt->sc_dvr.event_string[i] = bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_EVT_BUF + i); if (gdt->sc_dvr.event_string[i] == 0) break; } } } bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_EDOOR, 0xff); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_SEMA1, 0); } void gdt_mpr_release_event(struct gdt_softc *gdt) { GDT_DPRINTF(GDT_D_MISC, ("gdt_mpr_release_event(%p) ", gdt)); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_LDOOR, 1); } void gdt_mpr_set_sema0(struct gdt_softc *gdt) { GDT_DPRINTF(GDT_D_MISC, ("gdt_mpr_set_sema0(%p) ", gdt)); bus_space_write_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_SEMA0, 1); } int gdt_mpr_test_busy(struct gdt_softc *gdt) { GDT_DPRINTF(GDT_D_MISC, ("gdt_mpr_test_busy(%p) ", gdt)); return (bus_space_read_1(gdt->sc_dpmemt, gdt->sc_dpmemh, GDT_MPR_SEMA0) & 1); }