/*- * PCI specific probe and attach routines for LSI Fusion Adapters * FreeBSD Version. * * Copyright (c) 2000, 2001 by Greg Ansley * Partially derived from Matt Jacob's ISP driver. * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002 by Matthew Jacob * Feral Software * 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. 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. */ /*- * Copyright (c) 2002, 2006 by Matthew Jacob * 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. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon including * a substantially similar Disclaimer requirement for further binary * redistribution. * 3. Neither the names of the above listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 THE COPYRIGHT * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * Support from Chris Ellsworth in order to make SAS adapters work * is gratefully acknowledged. * * Support from LSI-Logic has also gone a great deal toward making this a * workable subsystem and is gratefully acknowledged. */ /* * Copyright (c) 2004, Avid Technology, Inc. and its contributors. * Copyright (c) 2005, WHEEL Sp. z o.o. * Copyright (c) 2004, 2005 Justin T. Gibbs * 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. * 2. Redistributions in binary form must reproduce at minimum a disclaimer * substantially similar to the "NO WARRANTY" disclaimer below * ("Disclaimer") and any redistribution must be conditioned upon including * a substantially similar Disclaimer requirement for further binary * redistribution. * 3. Neither the names of the above listed copyright holders nor the names * of any contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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 THE COPYRIGHT * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/dev/mpt/mpt_pci.c,v 1.61 2011/04/22 09:59:16 marius Exp $ */ #include #include #include #ifndef PCI_VENDOR_LSI #define PCI_VENDOR_LSI 0x1000 #endif #ifndef PCI_PRODUCT_LSI_FC909 #define PCI_PRODUCT_LSI_FC909 0x0620 #endif #ifndef PCI_PRODUCT_LSI_FC909A #define PCI_PRODUCT_LSI_FC909A 0x0621 #endif #ifndef PCI_PRODUCT_LSI_FC919 #define PCI_PRODUCT_LSI_FC919 0x0624 #endif #ifndef PCI_PRODUCT_LSI_FC929 #define PCI_PRODUCT_LSI_FC929 0x0622 #endif #ifndef PCI_PRODUCT_LSI_FC929X #define PCI_PRODUCT_LSI_FC929X 0x0626 #endif #ifndef PCI_PRODUCT_LSI_FC919X #define PCI_PRODUCT_LSI_FC919X 0x0628 #endif #ifndef PCI_PRODUCT_LSI_FC7X04X #define PCI_PRODUCT_LSI_FC7X04X 0x0640 #endif #ifndef PCI_PRODUCT_LSI_FC646 #define PCI_PRODUCT_LSI_FC646 0x0646 #endif #ifndef PCI_PRODUCT_LSI_1030 #define PCI_PRODUCT_LSI_1030 0x0030 #endif #ifndef PCI_PRODUCT_LSI_SAS1064 #define PCI_PRODUCT_LSI_SAS1064 0x0050 #endif #ifndef PCI_PRODUCT_LSI_SAS1064A #define PCI_PRODUCT_LSI_SAS1064A 0x005C #endif #ifndef PCI_PRODUCT_LSI_SAS1064E #define PCI_PRODUCT_LSI_SAS1064E 0x0056 #endif #ifndef PCI_PRODUCT_LSI_SAS1066 #define PCI_PRODUCT_LSI_SAS1066 0x005E #endif #ifndef PCI_PRODUCT_LSI_SAS1066E #define PCI_PRODUCT_LSI_SAS1066E 0x005A #endif #ifndef PCI_PRODUCT_LSI_SAS1068 #define PCI_PRODUCT_LSI_SAS1068 0x0054 #endif #ifndef PCI_PRODUCT_LSI_SAS1068E #define PCI_PRODUCT_LSI_SAS1068E 0x0058 #endif #ifndef PCI_PRODUCT_LSI_SAS1078 #define PCI_PRODUCT_LSI_SAS1078 0x0062 #endif #ifndef PCI_PRODUCT_LSI_SAS1078DE #define PCI_PRODUCT_LSI_SAS1078DE 0x007C #endif #ifndef PCIM_CMD_SERRESPEN #define PCIM_CMD_SERRESPEN 0x0100 #endif static int mpt_pci_probe(device_t); static int mpt_pci_attach(device_t); static void mpt_free_bus_resources(struct mpt_softc *mpt); static int mpt_pci_detach(device_t); static int mpt_pci_shutdown(device_t); static int mpt_dma_mem_alloc(struct mpt_softc *mpt); static void mpt_dma_mem_free(struct mpt_softc *mpt); static void mpt_read_config_regs(struct mpt_softc *mpt); static void mpt_pci_intr(void *); static device_method_t mpt_methods[] = { /* Device interface */ DEVMETHOD(device_probe, mpt_pci_probe), DEVMETHOD(device_attach, mpt_pci_attach), DEVMETHOD(device_detach, mpt_pci_detach), DEVMETHOD(device_shutdown, mpt_pci_shutdown), { 0, 0 } }; static driver_t mpt_driver = { "mpt", mpt_methods, sizeof(struct mpt_softc) }; static devclass_t mpt_devclass; DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0); MODULE_DEPEND(mpt, pci, 1, 1, 1); MODULE_VERSION(mpt, 1); static int mpt_pci_probe(device_t dev) { char *desc; if (pci_get_vendor(dev) != PCI_VENDOR_LSI) { return (ENXIO); } switch ((pci_get_device(dev) & ~1)) { case PCI_PRODUCT_LSI_FC909: desc = "LSILogic FC909 FC Adapter"; break; case PCI_PRODUCT_LSI_FC909A: desc = "LSILogic FC909A FC Adapter"; break; case PCI_PRODUCT_LSI_FC919: desc = "LSILogic FC919 FC Adapter"; break; case PCI_PRODUCT_LSI_FC929: desc = "Dual LSILogic FC929 FC Adapter"; break; case PCI_PRODUCT_LSI_FC919X: desc = "LSILogic FC919 FC PCI-X Adapter"; break; case PCI_PRODUCT_LSI_FC929X: desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; break; case PCI_PRODUCT_LSI_FC646: desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; break; case PCI_PRODUCT_LSI_FC7X04X: desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; break; case PCI_PRODUCT_LSI_1030: desc = "LSILogic 1030 Ultra4 Adapter"; break; case PCI_PRODUCT_LSI_SAS1064: case PCI_PRODUCT_LSI_SAS1064A: case PCI_PRODUCT_LSI_SAS1064E: case PCI_PRODUCT_LSI_SAS1066: case PCI_PRODUCT_LSI_SAS1066E: case PCI_PRODUCT_LSI_SAS1068: case PCI_PRODUCT_LSI_SAS1068E: case PCI_PRODUCT_LSI_SAS1078: case PCI_PRODUCT_LSI_SAS1078DE: desc = "LSILogic SAS/SATA Adapter"; break; default: return (ENXIO); } device_set_desc(dev, desc); return (0); } static void mpt_set_options(struct mpt_softc *mpt) { int bitmap; bitmap = 0; if (kgetenv_int("mpt_disable", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->disabled = 1; } } bitmap = 0; if (kgetenv_int("mpt_debug", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->verbose = MPT_PRT_DEBUG; } } bitmap = 0; if (kgetenv_int("mpt_debug1", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->verbose = MPT_PRT_DEBUG1; } } bitmap = 0; if (kgetenv_int("mpt_debug2", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->verbose = MPT_PRT_DEBUG2; } } bitmap = 0; if (kgetenv_int("mpt_debug3", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->verbose = MPT_PRT_DEBUG3; } } mpt->cfg_role = MPT_ROLE_DEFAULT; bitmap = 0; if (kgetenv_int("mpt_nil_role", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->cfg_role = 0; } mpt->do_cfg_role = 1; } bitmap = 0; if (kgetenv_int("mpt_tgt_role", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->cfg_role |= MPT_ROLE_TARGET; } mpt->do_cfg_role = 1; } bitmap = 0; if (kgetenv_int("mpt_ini_role", &bitmap)) { if (bitmap & (1 << mpt->unit)) { mpt->cfg_role |= MPT_ROLE_INITIATOR; } mpt->do_cfg_role = 1; } mpt->msi_enable = 0; } static void mpt_link_peer(struct mpt_softc *mpt) { struct mpt_softc *mpt2; if (mpt->unit == 0) { return; } /* * XXX: depends on probe order */ mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1); if (mpt2 == NULL) { return; } if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) { return; } if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) { return; } mpt->mpt2 = mpt2; mpt2->mpt2 = mpt; if (mpt->verbose >= MPT_PRT_DEBUG) { mpt_prt(mpt, "linking with peer (mpt%d)\n", device_get_unit(mpt2->dev)); } } static void mpt_unlink_peer(struct mpt_softc *mpt) { if (mpt->mpt2) { mpt->mpt2->mpt2 = NULL; } } static int mpt_pci_attach(device_t dev) { struct mpt_softc *mpt; int iqd; uint32_t data, cmd; int mpt_io_bar, mpt_mem_bar; /* Allocate the softc structure */ mpt = (struct mpt_softc*)device_get_softc(dev); if (mpt == NULL) { device_printf(dev, "cannot allocate softc\n"); return (ENOMEM); } memset(mpt, 0, sizeof(struct mpt_softc)); switch ((pci_get_device(dev) & ~1)) { case PCI_PRODUCT_LSI_FC909: case PCI_PRODUCT_LSI_FC909A: case PCI_PRODUCT_LSI_FC919: case PCI_PRODUCT_LSI_FC929: case PCI_PRODUCT_LSI_FC919X: case PCI_PRODUCT_LSI_FC646: case PCI_PRODUCT_LSI_FC7X04X: mpt->is_fc = 1; break; case PCI_PRODUCT_LSI_SAS1064: case PCI_PRODUCT_LSI_SAS1064A: case PCI_PRODUCT_LSI_SAS1064E: case PCI_PRODUCT_LSI_SAS1066: case PCI_PRODUCT_LSI_SAS1066E: case PCI_PRODUCT_LSI_SAS1068: case PCI_PRODUCT_LSI_SAS1068E: case PCI_PRODUCT_LSI_SAS1078: case PCI_PRODUCT_LSI_SAS1078DE: mpt->is_sas = 1; break; default: mpt->is_spi = 1; break; } mpt->dev = dev; mpt->unit = device_get_unit(dev); mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT; mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT; mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT; mpt->verbose = MPT_PRT_NONE; mpt->role = MPT_ROLE_NONE; mpt->mpt_ini_id = MPT_INI_ID_NONE; mpt_set_options(mpt); if (mpt->verbose == MPT_PRT_NONE) { mpt->verbose = MPT_PRT_WARN; /* Print INFO level (if any) if bootverbose is set */ mpt->verbose += (bootverbose != 0)? 1 : 0; } /* Make sure memory access decoders are enabled */ cmd = pci_read_config(dev, PCIR_COMMAND, 2); if ((cmd & PCIM_CMD_MEMEN) == 0) { device_printf(dev, "Memory accesses disabled"); return (ENXIO); } /* * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. */ cmd |= PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; pci_write_config(dev, PCIR_COMMAND, cmd, 2); /* * Make sure we've disabled the ROM. */ data = pci_read_config(dev, PCIR_BIOS, 4); data &= ~PCIM_BIOS_ENABLE; pci_write_config(dev, PCIR_BIOS, data, 4); /* * Is this part a dual? * If so, link with our partner (around yet) */ if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 || (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 || (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X || (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) { mpt_link_peer(mpt); } /* * Figure out which are the I/O and MEM Bars */ data = pci_read_config(dev, PCIR_BAR(0), 4); if (PCI_BAR_IO(data)) { /* BAR0 is IO, BAR1 is memory */ mpt_io_bar = 0; mpt_mem_bar = 1; } else { /* BAR0 is memory, BAR1 is IO */ mpt_mem_bar = 0; mpt_io_bar = 1; } /* * Set up register access. PIO mode is required for * certain reset operations (but must be disabled for * some cards otherwise). */ mpt->pci_pio_rid = PCIR_BAR(mpt_io_bar); mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &mpt->pci_pio_rid, RF_ACTIVE); if (mpt->pci_pio_reg == NULL) { device_printf(dev, "unable to map registers in PIO mode\n"); goto bad; } mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); /* Allocate kernel virtual memory for the 9x9's Mem0 region */ mpt->pci_mem_rid = PCIR_BAR(mpt_mem_bar); mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mpt->pci_mem_rid, RF_ACTIVE); if (mpt->pci_reg == NULL) { device_printf(dev, "Unable to memory map registers.\n"); if (mpt->is_sas) { device_printf(dev, "Giving Up.\n"); goto bad; } device_printf(dev, "Falling back to PIO mode.\n"); mpt->pci_st = mpt->pci_pio_st; mpt->pci_sh = mpt->pci_pio_sh; } else { mpt->pci_st = rman_get_bustag(mpt->pci_reg); mpt->pci_sh = rman_get_bushandle(mpt->pci_reg); } /* Get a handle to the interrupt */ iqd = 0; if (mpt->msi_enable) { /* * First try to alloc an MSI-X message. If that * fails, then try to alloc an MSI message instead. */ if (pci_msix_count(dev) == 1) { mpt->pci_msi_count = 1; if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) { iqd = 1; } else { mpt->pci_msi_count = 0; } } if (iqd == 0 && pci_msi_count(dev) == 1) { mpt->pci_msi_count = 1; if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) { iqd = 1; } else { mpt->pci_msi_count = 0; } } } mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, RF_ACTIVE | RF_SHAREABLE); if (mpt->pci_irq == NULL) { device_printf(dev, "could not allocate interrupt\n"); goto bad; } MPT_LOCK_SETUP(mpt); /* Disable interrupts at the part */ mpt_disable_ints(mpt); /* Register the interrupt handler */ if (mpt_setup_intr(dev, mpt->pci_irq, 0, NULL, mpt_pci_intr, mpt, &mpt->ih)) { device_printf(dev, "could not setup interrupt\n"); goto bad; } /* Allocate dma memory */ /* XXX JGibbs -Should really be done based on IOCFacts. */ if (mpt_dma_mem_alloc(mpt)) { mpt_prt(mpt, "Could not allocate DMA memory\n"); goto bad; } /* * Save the PCI config register values * * Hard resets are known to screw up the BAR for diagnostic * memory accesses (Mem1). * * Using Mem1 is known to make the chip stop responding to * configuration space transfers, so we need to save it now */ mpt_read_config_regs(mpt); /* * Disable PIO until we need it */ if (mpt->is_sas) { pci_disable_io(dev, SYS_RES_IOPORT); } /* Initialize the hardware */ if (mpt->disabled == 0) { if (mpt_attach(mpt) != 0) { goto bad; } } else { mpt_prt(mpt, "device disabled at user request\n"); goto bad; } mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown, dev, SHUTDOWN_PRI_DEFAULT); if (mpt->eh == NULL) { mpt_prt(mpt, "shutdown event registration failed\n"); (void) mpt_detach(mpt); goto bad; } return (0); bad: mpt_dma_mem_free(mpt); mpt_free_bus_resources(mpt); mpt_unlink_peer(mpt); MPT_LOCK_DESTROY(mpt); /* * but return zero to preserve unit numbering */ return (0); } /* * Free bus resources */ static void mpt_free_bus_resources(struct mpt_softc *mpt) { if (mpt->ih) { bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih); mpt->ih = 0; } if (mpt->pci_irq) { bus_release_resource(mpt->dev, SYS_RES_IRQ, mpt->pci_msi_count ? 1 : 0, mpt->pci_irq); mpt->pci_irq = 0; } if (mpt->pci_msi_count) { pci_release_msi(mpt->dev); mpt->pci_msi_count = 0; } if (mpt->pci_pio_reg) { bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid, mpt->pci_pio_reg); mpt->pci_pio_reg = 0; } if (mpt->pci_reg) { bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid, mpt->pci_reg); mpt->pci_reg = 0; } MPT_LOCK_DESTROY(mpt); } /* * Disconnect ourselves from the system. */ static int mpt_pci_detach(device_t dev) { struct mpt_softc *mpt; mpt = (struct mpt_softc*)device_get_softc(dev); if (mpt) { mpt_disable_ints(mpt); mpt_detach(mpt); mpt_reset(mpt, /*reinit*/FALSE); mpt_dma_mem_free(mpt); mpt_free_bus_resources(mpt); mpt_raid_free_mem(mpt); if (mpt->eh != NULL) { EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); } } return(0); } /* * Disable the hardware */ static int mpt_pci_shutdown(device_t dev) { struct mpt_softc *mpt; mpt = (struct mpt_softc *)device_get_softc(dev); if (mpt) { int r; r = mpt_shutdown(mpt); return (r); } return(0); } static int mpt_dma_mem_alloc(struct mpt_softc *mpt) { size_t len; struct mpt_map_info mi; /* Check if we alreay have allocated the reply memory */ if (mpt->reply_phys != 0) { return 0; } len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt); mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK|M_ZERO); if (mpt->request_pool == NULL) { mpt_prt(mpt, "cannot allocate request pool\n"); return (1); } /* * Create a parent dma tag for this device. * * Align at byte boundaries, * Limit to 32-bit addressing for request/reply queues. */ if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR, /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL, /*maxsize*/BUS_SPACE_MAXSIZE_32BIT, /*nsegments*/BUS_SPACE_UNRESTRICTED, /*maxsegsz*/BUS_SPACE_MAXSIZE_32BIT, /*flags*/0, &mpt->parent_dmat) != 0) { mpt_prt(mpt, "cannot create parent dma tag\n"); return (1); } /* Create a child tag for reply buffers */ if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0, &mpt->reply_dmat) != 0) { mpt_prt(mpt, "cannot create a dma tag for replies\n"); return (1); } /* Allocate some DMA accessible memory for replies */ if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply, BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) { mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n", (u_long) (2 * PAGE_SIZE)); return (1); } mi.mpt = mpt; mi.error = 0; /* Load and lock it into "bus space" */ bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply, 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0); if (mi.error) { mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n", mi.error); return (1); } mpt->reply_phys = mi.phys; return (0); } /* Deallocate memory that was allocated by mpt_dma_mem_alloc */ static void mpt_dma_mem_free(struct mpt_softc *mpt) { /* Make sure we aren't double destroying */ if (mpt->reply_dmat == 0) { mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n"); return; } bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap); bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap); bus_dma_tag_destroy(mpt->reply_dmat); bus_dma_tag_destroy(mpt->parent_dmat); mpt->reply_dmat = 0; kfree(mpt->request_pool, M_DEVBUF); mpt->request_pool = 0; } /* Reads modifiable (via PCI transactions) config registers */ static void mpt_read_config_regs(struct mpt_softc *mpt) { mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2); mpt->pci_cfg.LatencyTimer_LineSize = pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2); mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4); mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4); mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4); mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4); mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4); mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4); mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1); mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4); } /* Sets modifiable config registers */ void mpt_set_config_regs(struct mpt_softc *mpt) { uint32_t val; #define MPT_CHECK(reg, offset, size) \ val = pci_read_config(mpt->dev, offset, size); \ if (mpt->pci_cfg.reg != val) { \ mpt_prt(mpt, \ "Restoring " #reg " to 0x%X from 0x%X\n", \ mpt->pci_cfg.reg, val); \ } if (mpt->verbose >= MPT_PRT_DEBUG) { MPT_CHECK(Command, PCIR_COMMAND, 2); MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2); MPT_CHECK(IO_BAR, PCIR_BAR(0), 4); MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4); MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4); MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4); MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4); MPT_CHECK(ROM_BAR, PCIR_BIOS, 4); MPT_CHECK(IntLine, PCIR_INTLINE, 1); MPT_CHECK(PMCSR, 0x44, 4); } #undef MPT_CHECK pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2); pci_write_config(mpt->dev, PCIR_CACHELNSZ, mpt->pci_cfg.LatencyTimer_LineSize, 2); pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4); pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4); pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4); pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4); pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4); pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4); pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1); pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4); } static void mpt_pci_intr(void *arg) { struct mpt_softc *mpt; mpt = (struct mpt_softc *)arg; MPT_LOCK(mpt); mpt_intr(mpt); MPT_UNLOCK(mpt); }