/*- * PCI specific probe and attach routines for LSI Fusion Adapters * FreeBSD Version. * * SPDX-License-Identifier: BSD-2-Clause AND BSD-3-Clause * * 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. */ #include __FBSDID("$FreeBSD$"); #include #include #include /* * XXX it seems no other MPT driver knows about the following chips. */ #ifndef MPI_MANUFACTPAGE_DEVICEID_FC909_FB #define MPI_MANUFACTPAGE_DEVICEID_FC909_FB 0x0620 #endif #ifndef MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB #define MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB 0x0625 #endif #ifndef MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB #define MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB 0x0623 #endif #ifndef MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB #define MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB 0x0627 #endif #ifndef MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB #define MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB 0x0629 #endif #ifndef MPI_MANUFACTPAGE_DEVID_SAS1068A_FB #define MPI_MANUFACTPAGE_DEVID_SAS1068A_FB 0x0055 #endif #ifndef MPI_MANUFACTPAGE_DEVID_SAS1068E_FB #define MPI_MANUFACTPAGE_DEVID_SAS1068E_FB 0x0059 #endif #ifndef MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB #define MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB 0x007C #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); #if 0 static void mpt_read_config_regs(struct mpt_softc *mpt); static void mpt_set_config_regs(struct mpt_softc *mpt); #endif 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), DEVMETHOD_END }; static driver_t mpt_driver = { "mpt", mpt_methods, sizeof(struct mpt_softc) }; DRIVER_MODULE(mpt, pci, mpt_driver, NULL, NULL); MODULE_DEPEND(mpt, pci, 1, 1, 1); MODULE_VERSION(mpt, 1); static int mpt_pci_probe(device_t dev) { const char *desc; int rval; if (pci_get_vendor(dev) != MPI_MANUFACTPAGE_VENDORID_LSILOGIC) return (ENXIO); rval = BUS_PROBE_DEFAULT; switch (pci_get_device(dev)) { case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: desc = "LSILogic FC909 FC Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC909: desc = "LSILogic FC909A FC Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC919: desc = "LSILogic FC919 FC Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: desc = "LSILogic FC919 LAN Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC929: desc = "Dual LSILogic FC929 FC Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: desc = "Dual LSILogic FC929 LAN Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC919X: desc = "LSILogic FC919 FC PCI-X Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: desc = "LSILogic FC919 LAN PCI-X Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC929X: desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: desc = "Dual LSILogic FC929X LAN PCI-X Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC949E: desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter"; break; case MPI_MANUFACTPAGE_DEVICEID_FC949X: desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter"; break; case MPI_MANUFACTPAGE_DEVID_53C1030: case MPI_MANUFACTPAGE_DEVID_53C1030ZC: desc = "LSILogic 1030 Ultra4 Adapter"; break; case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: /* * Allow mfi(4) to claim this device in case it's in MegaRAID * mode. */ rval = BUS_PROBE_LOW_PRIORITY; /* FALLTHROUGH */ case MPI_MANUFACTPAGE_DEVID_SAS1064: case MPI_MANUFACTPAGE_DEVID_SAS1064A: case MPI_MANUFACTPAGE_DEVID_SAS1064E: case MPI_MANUFACTPAGE_DEVID_SAS1066: case MPI_MANUFACTPAGE_DEVID_SAS1066E: case MPI_MANUFACTPAGE_DEVID_SAS1068: case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: case MPI_MANUFACTPAGE_DEVID_SAS1068E: case MPI_MANUFACTPAGE_DEVID_SAS1078: case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: desc = "LSILogic SAS/SATA Adapter"; break; default: return (ENXIO); } device_set_desc(dev, desc); return (rval); } static void mpt_set_options(struct mpt_softc *mpt) { int tval; tval = 0; if (resource_int_value(device_get_name(mpt->dev), device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) { mpt->verbose = tval; } tval = -1; if (resource_int_value(device_get_name(mpt->dev), device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 && tval <= 3) { mpt->cfg_role = tval; mpt->do_cfg_role = 1; } tval = 0; mpt->msi_enable = 0; if (mpt->is_sas) mpt->msi_enable = 1; if (resource_int_value(device_get_name(mpt->dev), device_get_unit(mpt->dev), "msi_enable", &tval) == 0) { mpt->msi_enable = tval; } } #if 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 = devclass_get_softc(device_get_devclass(mpt->dev), 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; } } #endif static int mpt_pci_attach(device_t dev) { struct mpt_softc *mpt; int iqd; uint32_t val; int mpt_io_bar, mpt_mem_bar; mpt = (struct mpt_softc*)device_get_softc(dev); switch (pci_get_device(dev)) { case MPI_MANUFACTPAGE_DEVICEID_FC909_FB: case MPI_MANUFACTPAGE_DEVICEID_FC909: case MPI_MANUFACTPAGE_DEVICEID_FC919: case MPI_MANUFACTPAGE_DEVICEID_FC919_LAN_FB: case MPI_MANUFACTPAGE_DEVICEID_FC929: case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: case MPI_MANUFACTPAGE_DEVICEID_FC929X: case MPI_MANUFACTPAGE_DEVICEID_FC929X_LAN_FB: case MPI_MANUFACTPAGE_DEVICEID_FC919X: case MPI_MANUFACTPAGE_DEVICEID_FC919X_LAN_FB: case MPI_MANUFACTPAGE_DEVICEID_FC949E: case MPI_MANUFACTPAGE_DEVICEID_FC949X: mpt->is_fc = 1; break; case MPI_MANUFACTPAGE_DEVID_SAS1078: case MPI_MANUFACTPAGE_DEVID_SAS1078DE_FB: mpt->is_1078 = 1; /* FALLTHROUGH */ case MPI_MANUFACTPAGE_DEVID_SAS1064: case MPI_MANUFACTPAGE_DEVID_SAS1064A: case MPI_MANUFACTPAGE_DEVID_SAS1064E: case MPI_MANUFACTPAGE_DEVID_SAS1066: case MPI_MANUFACTPAGE_DEVID_SAS1066E: case MPI_MANUFACTPAGE_DEVID_SAS1068: case MPI_MANUFACTPAGE_DEVID_SAS1068A_FB: case MPI_MANUFACTPAGE_DEVID_SAS1068E: case MPI_MANUFACTPAGE_DEVID_SAS1068E_FB: 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 that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set. */ val = pci_read_config(dev, PCIR_COMMAND, 2); val |= PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN; pci_write_config(dev, PCIR_COMMAND, val, 2); /* * Make sure we've disabled the ROM. */ val = pci_read_config(dev, PCIR_BIOS, 4); val &= ~PCIM_BIOS_ENABLE; pci_write_config(dev, PCIR_BIOS, val, 4); #if 0 /* * Is this part a dual? * If so, link with our partner (around yet) */ switch (pci_get_device(dev)) { case MPI_MANUFACTPAGE_DEVICEID_FC929: case MPI_MANUFACTPAGE_DEVICEID_FC929_LAN_FB: case MPI_MANUFACTPAGE_DEVICEID_FC949E: case MPI_MANUFACTPAGE_DEVICEID_FC949X: case MPI_MANUFACTPAGE_DEVID_53C1030: case MPI_MANUFACTPAGE_DEVID_53C1030ZC: mpt_link_peer(mpt); break; default: break; } #endif /* * Figure out which are the I/O and MEM Bars */ val = pci_read_config(dev, PCIR_BAR(0), 4); if (PCI_BAR_IO(val)) { /* 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_io_bar = PCIR_BAR(mpt_io_bar); mpt->pci_pio_reg = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &mpt_io_bar, RF_ACTIVE); if (mpt->pci_pio_reg == NULL) { if (bootverbose) { device_printf(dev, "unable to map registers in PIO mode\n"); } } else { mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg); mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg); } mpt_mem_bar = PCIR_BAR(mpt_mem_bar); mpt->pci_reg = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &mpt_mem_bar, RF_ACTIVE); if (mpt->pci_reg == NULL) { if (bootverbose || mpt->is_sas || mpt->pci_pio_reg == NULL) { device_printf(dev, "Unable to memory map registers.\n"); } if (mpt->is_sas || mpt->pci_pio_reg == NULL) { device_printf(dev, "Giving Up.\n"); goto bad; } if (bootverbose) { 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. */ val = 1; if (pci_alloc_msix(dev, &val) == 0) iqd = 1; val = 1; if (iqd == 0 && pci_alloc_msi(dev, &val) == 0) iqd = 1; } mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd, RF_ACTIVE | (iqd != 0 ? 0 : 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 (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr, mpt, &mpt->ih)) { device_printf(dev, "could not setup interrupt\n"); goto bad; } /* Allocate dma memory */ if (mpt_dma_mem_alloc(mpt)) { mpt_prt(mpt, "Could not allocate DMA memory\n"); goto bad; } #if 0 /* * 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); #endif /* * 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_LAST); if (mpt->eh == NULL) { mpt_prt(mpt, "shutdown event registration failed\n"); mpt_disable_ints(mpt); (void) mpt_detach(mpt); mpt_reset(mpt, /*reinit*/FALSE); mpt_raid_free_mem(mpt); goto bad; } return (0); bad: mpt_dma_mem_free(mpt); mpt_free_bus_resources(mpt); #if 0 mpt_unlink_peer(mpt); #endif 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 = NULL; } if (mpt->pci_irq) { bus_release_resource(mpt->dev, SYS_RES_IRQ, rman_get_rid(mpt->pci_irq), mpt->pci_irq); pci_release_msi(mpt->dev); mpt->pci_irq = NULL; } if (mpt->pci_pio_reg) { bus_release_resource(mpt->dev, SYS_RES_IOPORT, rman_get_rid(mpt->pci_pio_reg), mpt->pci_pio_reg); mpt->pci_pio_reg = NULL; } if (mpt->pci_reg) { bus_release_resource(mpt->dev, SYS_RES_MEMORY, rman_get_rid(mpt->pci_reg), mpt->pci_reg); mpt->pci_reg = NULL; } } /* * 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_raid_free_mem(mpt); mpt_dma_mem_free(mpt); mpt_free_bus_resources(mpt); #if 0 mpt_unlink_peer(mpt); #endif if (mpt->eh != NULL) { EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh); } MPT_LOCK_DESTROY(mpt); } 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) return (mpt_shutdown(mpt)); 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 *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO); /* * 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*/bus_get_dma_tag(mpt->dev), /*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 = NULL; free(mpt->request_pool, M_DEVBUF); mpt->request_pool = NULL; } #if 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 */ static 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); } #endif 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); }