diff options
Diffstat (limited to 'sys/dev/mly/mly_pci.c')
| -rw-r--r-- | sys/dev/mly/mly_pci.c | 577 |
1 files changed, 0 insertions, 577 deletions
diff --git a/sys/dev/mly/mly_pci.c b/sys/dev/mly/mly_pci.c deleted file mode 100644 index b1760ca..0000000 --- a/sys/dev/mly/mly_pci.c +++ /dev/null @@ -1,577 +0,0 @@ -/*- - * Copyright (c) 2000, 2001 Michael Smith - * Copyright (c) 2000 BSDi - * 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 the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 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. - * - * $FreeBSD$ - */ - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/malloc.h> -#include <sys/kernel.h> - -#include <sys/bus.h> -#include <sys/conf.h> -#include <sys/devicestat.h> -#include <sys/disk.h> - -#include <machine/bus_memio.h> -#include <machine/bus.h> -#include <machine/resource.h> -#include <sys/rman.h> - -#include <pci/pcireg.h> -#include <pci/pcivar.h> - -#include <dev/mly/mlyreg.h> -#include <dev/mly/mlyio.h> -#include <dev/mly/mlyvar.h> - -static int mly_pci_probe(device_t dev); -static int mly_pci_attach(device_t dev); -static int mly_pci_detach(device_t dev); -static int mly_pci_shutdown(device_t dev); -static int mly_pci_suspend(device_t dev); -static int mly_pci_resume(device_t dev); -static void mly_pci_intr(void *arg); - -static int mly_sg_map(struct mly_softc *sc); -static void mly_sg_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error); -static int mly_mmbox_map(struct mly_softc *sc); -static void mly_mmbox_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error); - -static device_method_t mly_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, mly_pci_probe), - DEVMETHOD(device_attach, mly_pci_attach), - DEVMETHOD(device_detach, mly_pci_detach), - DEVMETHOD(device_shutdown, mly_pci_shutdown), - DEVMETHOD(device_suspend, mly_pci_suspend), - DEVMETHOD(device_resume, mly_pci_resume), - { 0, 0 } -}; - -static driver_t mly_pci_driver = { - "mly", - mly_methods, - sizeof(struct mly_softc) -}; - -static devclass_t mly_devclass; -DRIVER_MODULE(mly, pci, mly_pci_driver, mly_devclass, 0, 0); - -struct mly_ident -{ - u_int16_t vendor; - u_int16_t device; - u_int16_t subvendor; - u_int16_t subdevice; - int hwif; - char *desc; -} mly_identifiers[] = { - {0x1069, 0xba56, 0x1069, 0x0040, MLY_HWIF_STRONGARM, "Mylex eXtremeRAID 2000"}, - {0x1069, 0xba56, 0x1069, 0x0030, MLY_HWIF_STRONGARM, "Mylex eXtremeRAID 3000"}, - {0x1069, 0x0050, 0x1069, 0x0050, MLY_HWIF_I960RX, "Mylex AcceleRAID 352"}, - {0x1069, 0x0050, 0x1069, 0x0052, MLY_HWIF_I960RX, "Mylex AcceleRAID 170"}, - {0x1069, 0x0050, 0x1069, 0x0054, MLY_HWIF_I960RX, "Mylex AcceleRAID 160"}, - {0, 0, 0, 0, 0, 0} -}; - -/******************************************************************************** - ******************************************************************************** - Bus Interface - ******************************************************************************** - ********************************************************************************/ - -static int -mly_pci_probe(device_t dev) -{ - struct mly_ident *m; - - debug_called(1); - - for (m = mly_identifiers; m->vendor != 0; m++) { - if ((m->vendor == pci_get_vendor(dev)) && - (m->device == pci_get_device(dev)) && - ((m->subvendor == 0) || ((m->subvendor == pci_get_subvendor(dev)) && - (m->subdevice == pci_get_subdevice(dev))))) { - - device_set_desc(dev, m->desc); - return(-10); /* allow room to be overridden */ - } - } - return(ENXIO); -} - -static int -mly_pci_attach(device_t dev) -{ - struct mly_softc *sc; - int i, error; - u_int32_t command; - - debug_called(1); - - /* - * Initialise softc. - */ - sc = device_get_softc(dev); - bzero(sc, sizeof(*sc)); - sc->mly_dev = dev; - -#ifdef MLY_DEBUG - if (device_get_unit(sc->mly_dev) == 0) - mly_softc0 = sc; -#endif - - /* assume failure is 'not configured' */ - error = ENXIO; - - /* - * Verify that the adapter is correctly set up in PCI space. - */ - command = pci_read_config(sc->mly_dev, PCIR_COMMAND, 2); - command |= PCIM_CMD_BUSMASTEREN; - pci_write_config(dev, PCIR_COMMAND, command, 2); - command = pci_read_config(sc->mly_dev, PCIR_COMMAND, 2); - if (!(command & PCIM_CMD_BUSMASTEREN)) { - mly_printf(sc, "can't enable busmaster feature\n"); - goto fail; - } - if ((command & PCIM_CMD_MEMEN) == 0) { - mly_printf(sc, "memory window not available\n"); - goto fail; - } - - /* - * Allocate the PCI register window. - */ - sc->mly_regs_rid = PCIR_MAPS; /* first base address register */ - if ((sc->mly_regs_resource = bus_alloc_resource(sc->mly_dev, SYS_RES_MEMORY, &sc->mly_regs_rid, - 0, ~0, 1, RF_ACTIVE)) == NULL) { - mly_printf(sc, "can't allocate register window\n"); - goto fail; - } - sc->mly_btag = rman_get_bustag(sc->mly_regs_resource); - sc->mly_bhandle = rman_get_bushandle(sc->mly_regs_resource); - - /* - * Allocate and connect our interrupt. - */ - sc->mly_irq_rid = 0; - if ((sc->mly_irq = bus_alloc_resource(sc->mly_dev, SYS_RES_IRQ, &sc->mly_irq_rid, - 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE)) == NULL) { - mly_printf(sc, "can't allocate interrupt\n"); - goto fail; - } - if (bus_setup_intr(sc->mly_dev, sc->mly_irq, INTR_TYPE_CAM | INTR_ENTROPY, mly_pci_intr, sc, &sc->mly_intr)) { - mly_printf(sc, "can't set up interrupt\n"); - goto fail; - } - - /* assume failure is 'out of memory' */ - error = ENOMEM; - - /* - * Allocate the parent bus DMA tag appropriate for our PCI interface. - * - * Note that all of these controllers are 64-bit capable. - */ - if (bus_dma_tag_create(NULL, /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - MAXBSIZE, MLY_MAXSGENTRIES, /* maxsize, nsegments */ - BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ - BUS_DMA_ALLOCNOW, /* flags */ - &sc->mly_parent_dmat)) { - mly_printf(sc, "can't allocate parent DMA tag\n"); - goto fail; - } - - /* - * Create DMA tag for mapping buffers into controller-addressable space. - */ - if (bus_dma_tag_create(sc->mly_parent_dmat, /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - MAXBSIZE, MLY_MAXSGENTRIES, /* maxsize, nsegments */ - BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ - 0, /* flags */ - &sc->mly_buffer_dmat)) { - mly_printf(sc, "can't allocate buffer DMA tag\n"); - goto fail; - } - - /* - * Initialise the DMA tag for command packets. - */ - if (bus_dma_tag_create(sc->mly_parent_dmat, /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - sizeof(union mly_command_packet) * MLY_MAXCOMMANDS, 1, /* maxsize, nsegments */ - BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ - 0, /* flags */ - &sc->mly_packet_dmat)) { - mly_printf(sc, "can't allocate command packet DMA tag\n"); - goto fail; - } - - /* - * Detect the hardware interface version - */ - for (i = 0; mly_identifiers[i].vendor != 0; i++) { - if ((mly_identifiers[i].vendor == pci_get_vendor(dev)) && - (mly_identifiers[i].device == pci_get_device(dev))) { - sc->mly_hwif = mly_identifiers[i].hwif; - switch(sc->mly_hwif) { - case MLY_HWIF_I960RX: - debug(2, "set hardware up for i960RX"); - sc->mly_doorbell_true = 0x00; - sc->mly_command_mailbox = MLY_I960RX_COMMAND_MAILBOX; - sc->mly_status_mailbox = MLY_I960RX_STATUS_MAILBOX; - sc->mly_idbr = MLY_I960RX_IDBR; - sc->mly_odbr = MLY_I960RX_ODBR; - sc->mly_error_status = MLY_I960RX_ERROR_STATUS; - sc->mly_interrupt_status = MLY_I960RX_INTERRUPT_STATUS; - sc->mly_interrupt_mask = MLY_I960RX_INTERRUPT_MASK; - break; - case MLY_HWIF_STRONGARM: - debug(2, "set hardware up for StrongARM"); - sc->mly_doorbell_true = 0xff; /* doorbell 'true' is 0 */ - sc->mly_command_mailbox = MLY_STRONGARM_COMMAND_MAILBOX; - sc->mly_status_mailbox = MLY_STRONGARM_STATUS_MAILBOX; - sc->mly_idbr = MLY_STRONGARM_IDBR; - sc->mly_odbr = MLY_STRONGARM_ODBR; - sc->mly_error_status = MLY_STRONGARM_ERROR_STATUS; - sc->mly_interrupt_status = MLY_STRONGARM_INTERRUPT_STATUS; - sc->mly_interrupt_mask = MLY_STRONGARM_INTERRUPT_MASK; - break; - } - break; - } - } - - /* - * Create the scatter/gather mappings. - */ - if ((error = mly_sg_map(sc))) - goto fail; - - /* - * Allocate and map the memory mailbox - */ - if ((error = mly_mmbox_map(sc))) - goto fail; - - /* - * Do bus-independent initialisation. - */ - if ((error = mly_attach(sc))) - goto fail; - - return(0); - -fail: - mly_free(sc); - return(error); -} - -/******************************************************************************** - * Disconnect from the controller completely, in preparation for unload. - */ -static int -mly_pci_detach(device_t dev) -{ - struct mly_softc *sc = device_get_softc(dev); - int error; - - debug_called(1); - - if (sc->mly_state & MLY_STATE_OPEN) - return(EBUSY); - - if ((error = mly_pci_shutdown(dev))) - return(error); - - mly_free(sc); - - return(0); -} - -/******************************************************************************** - * Bring the controller down to a dormant state and detach all child devices. - * - * This function is called before detach or system shutdown. - * - * Note that we can assume that the camq on the controller is empty, as we won't - * allow shutdown if any device is open. - */ -static int -mly_pci_shutdown(device_t dev) -{ - struct mly_softc *sc = device_get_softc(dev); - - debug_called(1); - - mly_detach(sc); - return(0); -} - -/******************************************************************************** - * Bring the controller to a quiescent state, ready for system suspend. - * - * We can't assume that the controller is not active at this point, so we need - * to mask interrupts. - */ -static int -mly_pci_suspend(device_t dev) -{ - struct mly_softc *sc = device_get_softc(dev); - int s; - - debug_called(1); - s = splcam(); - mly_detach(sc); - splx(s); - return(0); -} - -/******************************************************************************** - * Bring the controller back to a state ready for operation. - */ -static int -mly_pci_resume(device_t dev) -{ - struct mly_softc *sc = device_get_softc(dev); - - debug_called(1); - sc->mly_state &= ~MLY_STATE_SUSPEND; - MLY_UNMASK_INTERRUPTS(sc); - return(0); -} - -/******************************************************************************* - * Take an interrupt, or be poked by other code to look for interrupt-worthy - * status. - */ -static void -mly_pci_intr(void *arg) -{ - struct mly_softc *sc = (struct mly_softc *)arg; - - debug_called(3); - - /* collect finished commands, queue anything waiting */ - mly_done(sc); -}; - -/******************************************************************************** - ******************************************************************************** - Bus-dependant Resource Management - ******************************************************************************** - ********************************************************************************/ - -/******************************************************************************** - * Allocate memory for the scatter/gather tables - */ -static int -mly_sg_map(struct mly_softc *sc) -{ - size_t segsize; - - debug_called(1); - - /* - * Create a single tag describing a region large enough to hold all of - * the s/g lists we will need. - */ - segsize = sizeof(struct mly_sg_entry) * MLY_MAXCOMMANDS * MLY_MAXSGENTRIES; - if (bus_dma_tag_create(sc->mly_parent_dmat, /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - segsize, 1, /* maxsize, nsegments */ - BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ - 0, /* flags */ - &sc->mly_sg_dmat)) { - mly_printf(sc, "can't allocate scatter/gather DMA tag\n"); - return(ENOMEM); - } - - /* - * Allocate enough s/g maps for all commands and permanently map them into - * controller-visible space. - * - * XXX this assumes we can get enough space for all the s/g maps in one - * contiguous slab. - */ - if (bus_dmamem_alloc(sc->mly_sg_dmat, (void **)&sc->mly_sg_table, BUS_DMA_NOWAIT, &sc->mly_sg_dmamap)) { - mly_printf(sc, "can't allocate s/g table\n"); - return(ENOMEM); - } - bus_dmamap_load(sc->mly_sg_dmat, sc->mly_sg_dmamap, sc->mly_sg_table, segsize, mly_sg_map_helper, sc, 0); - return(0); -} - -/******************************************************************************** - * Save the physical address of the base of the s/g table. - */ -static void -mly_sg_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) -{ - struct mly_softc *sc = (struct mly_softc *)arg; - - debug_called(2); - - /* save base of s/g table's address in bus space */ - sc->mly_sg_busaddr = segs->ds_addr; -} - -/******************************************************************************** - * Allocate memory for the memory-mailbox interface - */ -static int -mly_mmbox_map(struct mly_softc *sc) -{ - - /* - * Create a DMA tag for a single contiguous region large enough for the - * memory mailbox structure. - */ - if (bus_dma_tag_create(sc->mly_parent_dmat, /* parent */ - 1, 0, /* alignment, boundary */ - BUS_SPACE_MAXADDR, /* lowaddr */ - BUS_SPACE_MAXADDR, /* highaddr */ - NULL, NULL, /* filter, filterarg */ - sizeof(struct mly_mmbox), 1, /* maxsize, nsegments */ - BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ - 0, /* flags */ - &sc->mly_mmbox_dmat)) { - mly_printf(sc, "can't allocate memory mailbox DMA tag\n"); - return(ENOMEM); - } - - /* - * Allocate the buffer - */ - if (bus_dmamem_alloc(sc->mly_mmbox_dmat, (void **)&sc->mly_mmbox, BUS_DMA_NOWAIT, &sc->mly_mmbox_dmamap)) { - mly_printf(sc, "can't allocate memory mailbox\n"); - return(ENOMEM); - } - bus_dmamap_load(sc->mly_mmbox_dmat, sc->mly_mmbox_dmamap, sc->mly_mmbox, sizeof(struct mly_mmbox), - mly_mmbox_map_helper, sc, 0); - bzero(sc->mly_mmbox, sizeof(*sc->mly_mmbox)); - return(0); - -} - -/******************************************************************************** - * Save the physical address of the memory mailbox - */ -static void -mly_mmbox_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) -{ - struct mly_softc *sc = (struct mly_softc *)arg; - - debug_called(2); - - sc->mly_mmbox_busaddr = segs->ds_addr; -} - -/******************************************************************************** - * Free all of the resources associated with (sc) - * - * Should not be called if the controller is active. - */ -void -mly_free(struct mly_softc *sc) -{ - struct mly_command *mc; - - debug_called(1); - - /* detach from CAM */ - mly_cam_detach(sc); - - /* throw away command buffer DMA maps */ - while (mly_alloc_command(sc, &mc) == 0) - bus_dmamap_destroy(sc->mly_buffer_dmat, mc->mc_datamap); - - /* release the packet storage */ - if (sc->mly_packet != NULL) { - bus_dmamap_unload(sc->mly_packet_dmat, sc->mly_packetmap); - bus_dmamem_free(sc->mly_packet_dmat, sc->mly_packet, sc->mly_packetmap); - } - - /* throw away the controllerinfo structure */ - if (sc->mly_controllerinfo != NULL) - free(sc->mly_controllerinfo, M_DEVBUF); - - /* throw away the controllerparam structure */ - if (sc->mly_controllerparam != NULL) - free(sc->mly_controllerparam, M_DEVBUF); - - /* destroy data-transfer DMA tag */ - if (sc->mly_buffer_dmat) - bus_dma_tag_destroy(sc->mly_buffer_dmat); - - /* free and destroy DMA memory and tag for s/g lists */ - if (sc->mly_sg_table) { - bus_dmamap_unload(sc->mly_sg_dmat, sc->mly_sg_dmamap); - bus_dmamem_free(sc->mly_sg_dmat, sc->mly_sg_table, sc->mly_sg_dmamap); - } - if (sc->mly_sg_dmat) - bus_dma_tag_destroy(sc->mly_sg_dmat); - - /* free and destroy DMA memory and tag for memory mailbox */ - if (sc->mly_mmbox) { - bus_dmamap_unload(sc->mly_mmbox_dmat, sc->mly_mmbox_dmamap); - bus_dmamem_free(sc->mly_mmbox_dmat, sc->mly_mmbox, sc->mly_mmbox_dmamap); - } - if (sc->mly_mmbox_dmat) - bus_dma_tag_destroy(sc->mly_mmbox_dmat); - - /* disconnect the interrupt handler */ - if (sc->mly_intr) - bus_teardown_intr(sc->mly_dev, sc->mly_irq, sc->mly_intr); - if (sc->mly_irq != NULL) - bus_release_resource(sc->mly_dev, SYS_RES_IRQ, sc->mly_irq_rid, sc->mly_irq); - - /* destroy the parent DMA tag */ - if (sc->mly_parent_dmat) - bus_dma_tag_destroy(sc->mly_parent_dmat); - - /* release the register window mapping */ - if (sc->mly_regs_resource != NULL) - bus_release_resource(sc->mly_dev, SYS_RES_MEMORY, sc->mly_regs_rid, sc->mly_regs_resource); -} - |
