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authorcvs2svn <cvs2svn@FreeBSD.org>2001-12-02 07:37:18 +0000
committercvs2svn <cvs2svn@FreeBSD.org>2001-12-02 07:37:18 +0000
commit2a4a2b21407ac7f41a63c104b4dfb2d6725d28c9 (patch)
treeb3417cf80a5272f174873d972fec985e3baefbb6 /sys/dev/ciss/ciss.c
parent7d5307bebea0b558542fd06dc77ecc009df9b144 (diff)
downloadsrc-2a4a2b21407ac7f41a63c104b4dfb2d6725d28c9.tar.gz
src-2a4a2b21407ac7f41a63c104b4dfb2d6725d28c9.zip
This commit was manufactured by cvs2svn to create branch 'RELENG_4'.
Notes
Notes: svn path=/stable/4/; revision=87190
Diffstat (limited to 'sys/dev/ciss/ciss.c')
-rw-r--r--sys/dev/ciss/ciss.c3368
1 files changed, 3368 insertions, 0 deletions
diff --git a/sys/dev/ciss/ciss.c b/sys/dev/ciss/ciss.c
new file mode 100644
index 000000000000..6744c5b8bdf0
--- /dev/null
+++ b/sys/dev/ciss/ciss.c
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+/*-
+ * Copyright (c) 2001 Michael Smith
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Common Interface for SCSI-3 Support driver.
+ *
+ * CISS claims to provide a common interface between a generic SCSI
+ * transport and an intelligent host adapter.
+ *
+ * This driver supports CISS as defined in the document "CISS Command
+ * Interface for SCSI-3 Support Open Specification", Version 1.04,
+ * Valence Number 1, dated 20001127, produced by Compaq Computer
+ * Corporation. This document appears to be a hastily and somewhat
+ * arbitrarlily cut-down version of a larger (and probably even more
+ * chaotic and inconsistent) Compaq internal document. Various
+ * details were also gleaned from Compaq's "cciss" driver for Linux.
+ *
+ * We provide a shim layer between the CISS interface and CAM,
+ * offloading most of the queueing and being-a-disk chores onto CAM.
+ * Entry to the driver is via the PCI bus attachment (ciss_probe,
+ * ciss_attach, etc) and via the CAM interface (ciss_cam_action,
+ * ciss_cam_poll). The Compaq CISS adapters are, however, poor SCSI
+ * citizens and we have to fake up some responses to get reasonable
+ * behaviour out of them. In addition, the CISS command set is by no
+ * means adequate to support the functionality of a RAID controller,
+ * and thus the supported Compaq adapters utilise portions of the
+ * control protocol from earlier Compaq adapter families.
+ *
+ * Note that we only support the "simple" transport layer over PCI.
+ * This interface (ab)uses the I2O register set (specifically the post
+ * queues) to exchange commands with the adapter. Other interfaces
+ * are available, but we aren't supposed to know about them, and it is
+ * dubious whether they would provide major performance improvements
+ * except under extreme load.
+ *
+ * Currently the only supported CISS adapters are the Compaq Smart
+ * Array 5* series (5300, 5i, 532). Even with only three adapters,
+ * Compaq still manage to have interface variations.
+ *
+ *
+ * Thanks must go to Fred Harris and Darryl DeVinney at Compaq, as
+ * well as Paul Saab at Yahoo! for their assistance in making this
+ * driver happen.
+ */
+
+#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/stat.h>
+
+#include <cam/cam.h>
+#include <cam/cam_ccb.h>
+#include <cam/cam_periph.h>
+#include <cam/cam_sim.h>
+#include <cam/cam_xpt_sim.h>
+#include <cam/scsi/scsi_all.h>
+#include <cam/scsi/scsi_message.h>
+
+#include <machine/clock.h>
+#include <machine/bus_memio.h>
+#include <machine/bus.h>
+#include <machine/endian.h>
+#include <machine/resource.h>
+#include <sys/rman.h>
+
+#include <pci/pcireg.h>
+#include <pci/pcivar.h>
+
+#include <dev/ciss/cissreg.h>
+#include <dev/ciss/cissvar.h>
+#include <dev/ciss/cissio.h>
+
+MALLOC_DEFINE(CISS_MALLOC_CLASS, "ciss_data", "ciss internal data buffers");
+
+/* pci interface */
+static int ciss_lookup(device_t dev);
+static int ciss_probe(device_t dev);
+static int ciss_attach(device_t dev);
+static int ciss_detach(device_t dev);
+static int ciss_shutdown(device_t dev);
+
+/* (de)initialisation functions, control wrappers */
+static int ciss_init_pci(struct ciss_softc *sc);
+static int ciss_wait_adapter(struct ciss_softc *sc);
+static int ciss_flush_adapter(struct ciss_softc *sc);
+static int ciss_init_requests(struct ciss_softc *sc);
+static void ciss_command_map_helper(void *arg, bus_dma_segment_t *segs,
+ int nseg, int error);
+static int ciss_identify_adapter(struct ciss_softc *sc);
+static int ciss_init_logical(struct ciss_softc *sc);
+static int ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld);
+static int ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld);
+static int ciss_update_config(struct ciss_softc *sc);
+static int ciss_accept_media(struct ciss_softc *sc, int ldrive, int async);
+static void ciss_accept_media_complete(struct ciss_request *cr);
+static void ciss_free(struct ciss_softc *sc);
+
+/* request submission/completion */
+static int ciss_start(struct ciss_request *cr);
+static void ciss_done(struct ciss_softc *sc);
+static void ciss_intr(void *arg);
+static void ciss_complete(struct ciss_softc *sc);
+static int ciss_report_request(struct ciss_request *cr, int *command_status,
+ int *scsi_status);
+static int ciss_synch_request(struct ciss_request *cr, int timeout);
+static int ciss_poll_request(struct ciss_request *cr, int timeout);
+static int ciss_wait_request(struct ciss_request *cr, int timeout);
+static int ciss_abort_request(struct ciss_request *cr);
+
+/* request queueing */
+static int ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp);
+static void ciss_preen_command(struct ciss_request *cr);
+static void ciss_release_request(struct ciss_request *cr);
+
+/* request helpers */
+static int ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
+ int opcode, void **bufp, size_t bufsize);
+static int ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc);
+
+/* DMA map/unmap */
+static int ciss_map_request(struct ciss_request *cr);
+static void ciss_request_map_helper(void *arg, bus_dma_segment_t *segs,
+ int nseg, int error);
+static void ciss_unmap_request(struct ciss_request *cr);
+
+/* CAM interface */
+static int ciss_cam_init(struct ciss_softc *sc);
+static void ciss_cam_rescan_target(struct ciss_softc *sc, int target);
+static void ciss_cam_rescan_all(struct ciss_softc *sc);
+static void ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb);
+static void ciss_cam_action(struct cam_sim *sim, union ccb *ccb);
+static int ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio);
+static int ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio);
+static void ciss_cam_poll(struct cam_sim *sim);
+static void ciss_cam_complete(struct ciss_request *cr);
+static void ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio);
+static struct cam_periph *ciss_find_periph(struct ciss_softc *sc, int target);
+static int ciss_name_device(struct ciss_softc *sc, int target);
+
+/* periodic status monitoring */
+static void ciss_periodic(void *arg);
+static void ciss_notify_event(struct ciss_softc *sc);
+static void ciss_notify_complete(struct ciss_request *cr);
+static int ciss_notify_abort(struct ciss_softc *sc);
+static int ciss_notify_abort_bmic(struct ciss_softc *sc);
+static void ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn);
+static void ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn);
+
+/* debugging output */
+static void ciss_print_request(struct ciss_request *cr);
+static void ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld);
+static const char *ciss_name_ldrive_status(int status);
+static int ciss_decode_ldrive_status(int status);
+static const char *ciss_name_ldrive_org(int org);
+static const char *ciss_name_command_status(int status);
+
+/*
+ * PCI bus interface.
+ */
+static device_method_t ciss_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, ciss_probe),
+ DEVMETHOD(device_attach, ciss_attach),
+ DEVMETHOD(device_detach, ciss_detach),
+ DEVMETHOD(device_shutdown, ciss_shutdown),
+ { 0, 0 }
+};
+
+static driver_t ciss_pci_driver = {
+ "ciss",
+ ciss_methods,
+ sizeof(struct ciss_softc)
+};
+
+static devclass_t ciss_devclass;
+DRIVER_MODULE(ciss, pci, ciss_pci_driver, ciss_devclass, 0, 0);
+
+/*
+ * Control device interface.
+ */
+static d_open_t ciss_open;
+static d_close_t ciss_close;
+static d_ioctl_t ciss_ioctl;
+
+#define CISS_CDEV_MAJOR 166
+
+static struct cdevsw ciss_cdevsw = {
+ ciss_open, ciss_close, noread, nowrite, ciss_ioctl,
+ nopoll, nommap, nostrategy, "ciss", CISS_CDEV_MAJOR,
+ nodump, nopsize, 0, nokqfilter
+};
+
+/************************************************************************
+ * CISS adapters amazingly don't have a defined programming interface
+ * value. (One could say some very despairing things about PCI and
+ * people just not getting the general idea.) So we are forced to
+ * stick with matching against subvendor/subdevice, and thus have to
+ * be updated for every new CISS adapter that appears.
+ */
+#define CISS_BOARD_SA5 (1<<0)
+#define CISS_BOARD_SA5B (1<<1)
+
+static struct
+{
+ u_int16_t subvendor;
+ u_int16_t subdevice;
+ int flags;
+ char *desc;
+} ciss_vendor_data[] = {
+ { 0x0e11, 0x4070, CISS_BOARD_SA5, "Compaq Smart Array 5300" },
+ { 0x0e11, 0x4080, CISS_BOARD_SA5B, "Compaq Smart Array 5i" },
+ { 0x0e11, 0x4082, CISS_BOARD_SA5B, "Compaq Smart Array 532" },
+ { 0, 0, NULL }
+};
+
+/************************************************************************
+ * Find a match for the device in our list of known adapters.
+ */
+static int
+ciss_lookup(device_t dev)
+{
+ int i;
+
+ for (i = 0; ciss_vendor_data[i].desc != NULL; i++)
+ if ((pci_get_subvendor(dev) == ciss_vendor_data[i].subvendor) &&
+ (pci_get_subdevice(dev) == ciss_vendor_data[i].subdevice)) {
+ return(i);
+ }
+ return(-1);
+}
+
+/************************************************************************
+ * Match a known CISS adapter.
+ */
+static int
+ciss_probe(device_t dev)
+{
+ int i;
+
+ i = ciss_lookup(dev);
+ if (i != -1) {
+ device_set_desc(dev, ciss_vendor_data[i].desc);
+ return(-10);
+ }
+ return(ENOENT);
+}
+
+/************************************************************************
+ * Attach the driver to this adapter.
+ */
+static int
+ciss_attach(device_t dev)
+{
+ struct ciss_softc *sc;
+ int i, error;
+
+ debug_called(1);
+
+#ifdef CISS_DEBUG
+ /* print structure/union sizes */
+ debug_struct(ciss_command);
+ debug_struct(ciss_header);
+ debug_union(ciss_device_address);
+ debug_struct(ciss_cdb);
+ debug_struct(ciss_report_cdb);
+ debug_struct(ciss_notify_cdb);
+ debug_struct(ciss_notify);
+ debug_struct(ciss_message_cdb);
+ debug_struct(ciss_error_info_pointer);
+ debug_struct(ciss_error_info);
+ debug_struct(ciss_sg_entry);
+ debug_struct(ciss_config_table);
+ debug_struct(ciss_bmic_cdb);
+ debug_struct(ciss_bmic_id_ldrive);
+ debug_struct(ciss_bmic_id_lstatus);
+ debug_struct(ciss_bmic_id_table);
+ debug_struct(ciss_bmic_id_pdrive);
+ debug_struct(ciss_bmic_blink_pdrive);
+ debug_struct(ciss_bmic_flush_cache);
+ debug_const(CISS_MAX_REQUESTS);
+ debug_const(CISS_MAX_LOGICAL);
+ debug_const(CISS_INTERRUPT_COALESCE_DELAY);
+ debug_const(CISS_INTERRUPT_COALESCE_COUNT);
+ debug_const(CISS_COMMAND_ALLOC_SIZE);
+ debug_const(CISS_COMMAND_SG_LENGTH);
+
+ debug_type(cciss_pci_info_struct);
+ debug_type(cciss_coalint_struct);
+ debug_type(cciss_coalint_struct);
+ debug_type(NodeName_type);
+ debug_type(NodeName_type);
+ debug_type(Heartbeat_type);
+ debug_type(BusTypes_type);
+ debug_type(FirmwareVer_type);
+ debug_type(DriverVer_type);
+ debug_type(IOCTL_Command_struct);
+#endif
+
+ sc = device_get_softc(dev);
+ sc->ciss_dev = dev;
+
+ /*
+ * Work out adapter type.
+ */
+ i = ciss_lookup(dev);
+ if (ciss_vendor_data[i].flags & CISS_BOARD_SA5) {
+ sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5;
+ } else if (ciss_vendor_data[i].flags & CISS_BOARD_SA5B) {
+ sc->ciss_interrupt_mask = CISS_TL_SIMPLE_INTR_OPQ_SA5B;
+ } else {
+ /* really an error on our part */
+ ciss_printf(sc, "unable to determine hardware type\n");
+ error = ENXIO;
+ goto out;
+ }
+
+ /*
+ * Do PCI-specific init.
+ */
+ if ((error = ciss_init_pci(sc)) != 0)
+ goto out;
+
+ /*
+ * Initialise driver queues.
+ */
+ ciss_initq_free(sc);
+ ciss_initq_busy(sc);
+ ciss_initq_complete(sc);
+
+ /*
+ * Initialise command/request pool.
+ */
+ if ((error = ciss_init_requests(sc)) != 0)
+ goto out;
+
+ /*
+ * Get adapter information.
+ */
+ if ((error = ciss_identify_adapter(sc)) != 0)
+ goto out;
+
+ /*
+ * Build our private table of logical devices.
+ */
+ if ((error = ciss_init_logical(sc)) != 0)
+ goto out;
+
+ /*
+ * Enable interrupts so that the CAM scan can complete.
+ */
+ CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc);
+
+ /*
+ * Initialise the CAM interface.
+ */
+ if ((error = ciss_cam_init(sc)) != 0)
+ goto out;
+
+ /*
+ * Start the heartbeat routine and event chain.
+ */
+ ciss_periodic(sc);
+
+ /*
+ * Create the control device.
+ */
+ sc->ciss_dev_t = make_dev(&ciss_cdevsw, device_get_unit(sc->ciss_dev),
+ UID_ROOT, GID_OPERATOR, S_IRUSR | S_IWUSR,
+ "ciss%d", device_get_unit(sc->ciss_dev));
+ sc->ciss_dev_t->si_drv1 = sc;
+
+ /*
+ * The adapter is running; synchronous commands can now sleep
+ * waiting for an interrupt to signal completion.
+ */
+ sc->ciss_flags |= CISS_FLAG_RUNNING;
+
+ error = 0;
+ out:
+ if (error != 0)
+ ciss_free(sc);
+ return(error);
+}
+
+/************************************************************************
+ * Detach the driver from this adapter.
+ */
+static int
+ciss_detach(device_t dev)
+{
+ struct ciss_softc *sc = device_get_softc(dev);
+
+ debug_called(1);
+
+ /* flush adapter cache */
+ ciss_flush_adapter(sc);
+
+ /* release all resources */
+ ciss_free(sc);
+
+ return(0);
+
+}
+
+/************************************************************************
+ * Prepare adapter for system shutdown.
+ */
+static int
+ciss_shutdown(device_t dev)
+{
+ struct ciss_softc *sc = device_get_softc(dev);
+
+ debug_called(1);
+
+ /* flush adapter cache */
+ ciss_flush_adapter(sc);
+
+ return(0);
+}
+
+/************************************************************************
+ * Perform PCI-specific attachment actions.
+ */
+static int
+ciss_init_pci(struct ciss_softc *sc)
+{
+ uintptr_t cbase, csize, cofs;
+ int error;
+
+ debug_called(1);
+
+ /*
+ * Allocate register window first (we need this to find the config
+ * struct).
+ */
+ error = ENXIO;
+ sc->ciss_regs_rid = CISS_TL_SIMPLE_BAR_REGS;
+ if ((sc->ciss_regs_resource =
+ bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_regs_rid,
+ 0, ~0, 1, RF_ACTIVE)) == NULL) {
+ ciss_printf(sc, "can't allocate register window\n");
+ return(ENXIO);
+ }
+ sc->ciss_regs_bhandle = rman_get_bushandle(sc->ciss_regs_resource);
+ sc->ciss_regs_btag = rman_get_bustag(sc->ciss_regs_resource);
+
+ /*
+ * Find the BAR holding the config structure. If it's not the one
+ * we already mapped for registers, map it too.
+ */
+ sc->ciss_cfg_rid = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_BAR) & 0xffff;
+ if (sc->ciss_cfg_rid != sc->ciss_regs_rid) {
+ if ((sc->ciss_cfg_resource =
+ bus_alloc_resource(sc->ciss_dev, SYS_RES_MEMORY, &sc->ciss_cfg_rid,
+ 0, ~0, 1, RF_ACTIVE)) == NULL) {
+ ciss_printf(sc, "can't allocate config window\n");
+ return(ENXIO);
+ }
+ cbase = (uintptr_t)rman_get_virtual(sc->ciss_cfg_resource);
+ csize = rman_get_end(sc->ciss_cfg_resource) -
+ rman_get_start(sc->ciss_cfg_resource) + 1;
+ } else {
+ cbase = (uintptr_t)rman_get_virtual(sc->ciss_regs_resource);
+ csize = rman_get_end(sc->ciss_regs_resource) -
+ rman_get_start(sc->ciss_regs_resource) + 1;
+ }
+ cofs = CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_CFG_OFF);
+
+ /*
+ * Use the base/size/offset values we just calculated to
+ * sanity-check the config structure. If it's OK, point to it.
+ */
+ if ((cofs + sizeof(struct ciss_config_table)) > csize) {
+ ciss_printf(sc, "config table outside window\n");
+ return(ENXIO);
+ }
+ sc->ciss_cfg = (struct ciss_config_table *)(cbase + cofs);
+ debug(1, "config struct at %p", sc->ciss_cfg);
+
+ /*
+ * Validate the config structure. If we supported other transport
+ * methods, we could select amongst them at this point in time.
+ */
+ if (strncmp(sc->ciss_cfg->signature, "CISS", 4)) {
+ ciss_printf(sc, "config signature mismatch (got '%c%c%c%c')\n",
+ sc->ciss_cfg->signature[0], sc->ciss_cfg->signature[1],
+ sc->ciss_cfg->signature[2], sc->ciss_cfg->signature[3]);
+ return(ENXIO);
+ }
+ if ((sc->ciss_cfg->valence < CISS_MIN_VALENCE) ||
+ (sc->ciss_cfg->valence > CISS_MAX_VALENCE)) {
+ ciss_printf(sc, "adapter interface specification (%d) unsupported\n",
+ sc->ciss_cfg->valence);
+ return(ENXIO);
+ }
+
+ /*
+ * Put the board into simple mode, and tell it we're using the low
+ * 4GB of RAM. Set the default interrupt coalescing options.
+ */
+ if (!(sc->ciss_cfg->supported_methods & CISS_TRANSPORT_METHOD_SIMPLE)) {
+ ciss_printf(sc, "adapter does not support 'simple' transport layer\n");
+ return(ENXIO);
+ }
+ sc->ciss_cfg->requested_method = CISS_TRANSPORT_METHOD_SIMPLE;
+ sc->ciss_cfg->command_physlimit = 0;
+ sc->ciss_cfg->interrupt_coalesce_delay = CISS_INTERRUPT_COALESCE_DELAY;
+ sc->ciss_cfg->interrupt_coalesce_count = CISS_INTERRUPT_COALESCE_COUNT;
+
+ if (ciss_update_config(sc)) {
+ ciss_printf(sc, "adapter refuses to accept config update (IDBR 0x%x)\n",
+ CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR));
+ return(ENXIO);
+ }
+ if (!(sc->ciss_cfg->active_method != CISS_TRANSPORT_METHOD_SIMPLE)) {
+ ciss_printf(sc,
+ "adapter refuses to go into 'simple' transport mode (0x%x, 0x%x)\n",
+ sc->ciss_cfg->supported_methods, sc->ciss_cfg->active_method);
+ return(ENXIO);
+ }
+
+ /*
+ * Wait for the adapter to come ready.
+ */
+ if ((error = ciss_wait_adapter(sc)) != 0)
+ return(error);
+
+ /*
+ * Turn off interrupts before we go routing anything.
+ */
+ CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc);
+
+ /*
+ * Allocate and set up our interrupt.
+ */
+ sc->ciss_irq_rid = 0;
+ if ((sc->ciss_irq_resource =
+ bus_alloc_resource(sc->ciss_dev, SYS_RES_IRQ, &sc->ciss_irq_rid, 0, ~0, 1,
+ RF_ACTIVE | RF_SHAREABLE)) == NULL) {
+ ciss_printf(sc, "can't allocate interrupt\n");
+ return(ENXIO);
+ }
+ if (bus_setup_intr(sc->ciss_dev, sc->ciss_irq_resource, INTR_TYPE_CAM, ciss_intr, sc,
+ &sc->ciss_intr)) {
+ ciss_printf(sc, "can't set up interrupt\n");
+ return(ENXIO);
+ }
+
+ /*
+ * Allocate the parent bus DMA tag appropriate for our PCI
+ * interface.
+ *
+ * Note that "simple" adapters can only address within a 32-bit
+ * span.
+ */
+ 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, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
+ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
+ BUS_DMA_ALLOCNOW, /* flags */
+ &sc->ciss_parent_dmat)) {
+ ciss_printf(sc, "can't allocate parent DMA tag\n");
+ return(ENOMEM);
+ }
+
+ /*
+ * Create DMA tag for mapping buffers into adapter-addressable
+ * space.
+ */
+ if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
+ 1, 0, /* alignment, boundary */
+ BUS_SPACE_MAXADDR, /* lowaddr */
+ BUS_SPACE_MAXADDR, /* highaddr */
+ NULL, NULL, /* filter, filterarg */
+ MAXBSIZE, CISS_COMMAND_SG_LENGTH, /* maxsize, nsegments */
+ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
+ 0, /* flags */
+ &sc->ciss_buffer_dmat)) {
+ ciss_printf(sc, "can't allocate buffer DMA tag\n");
+ return(ENOMEM);
+ }
+ return(0);
+}
+
+/************************************************************************
+ * Wait for the adapter to come ready.
+ */
+static int
+ciss_wait_adapter(struct ciss_softc *sc)
+{
+ int i;
+
+ debug_called(1);
+
+ /*
+ * Wait for the adapter to come ready.
+ */
+ if (!(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY)) {
+ ciss_printf(sc, "waiting for adapter to come ready...\n");
+ for (i = 0; !(sc->ciss_cfg->active_method & CISS_TRANSPORT_METHOD_READY); i++) {
+ DELAY(1000000); /* one second */
+ if (i > 30) {
+ ciss_printf(sc, "timed out waiting for adapter to come ready\n");
+ return(EIO);
+ }
+ }
+ }
+ return(0);
+}
+
+/************************************************************************
+ * Flush the adapter cache.
+ */
+static int
+ciss_flush_adapter(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ struct ciss_bmic_flush_cache *cbfc;
+ int error, command_status;
+
+ debug_called(1);
+
+ cr = NULL;
+ cbfc = NULL;
+
+ /*
+ * Build a BMIC request to flush the cache. We don't disable
+ * it, as we may be going to do more I/O (eg. we are emulating
+ * the Synchronise Cache command).
+ */
+ if ((cbfc = malloc(sizeof(*cbfc), CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
+ error = ENOMEM;
+ goto out;
+ }
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_FLUSH_CACHE,
+ (void **)&cbfc, sizeof(*cbfc))) != 0)
+ goto out;
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC FLUSH_CACHE command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS:
+ break;
+ default:
+ ciss_printf(sc, "error flushing cache (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+
+out:
+ if (cbfc != NULL)
+ free(cbfc, CISS_MALLOC_CLASS);
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+/************************************************************************
+ * Allocate memory for the adapter command structures, initialise
+ * the request structures.
+ *
+ * Note that the entire set of commands are allocated in a single
+ * contiguous slab.
+ */
+static int
+ciss_init_requests(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ int i;
+
+ debug_called(1);
+
+ /*
+ * Calculate the number of request structures/commands we are
+ * going to provide for this adapter.
+ */
+ sc->ciss_max_requests = min(CISS_MAX_REQUESTS, sc->ciss_cfg->max_outstanding_commands);
+
+ if (1/*bootverbose*/)
+ ciss_printf(sc, "using %d of %d available commands\n",
+ sc->ciss_max_requests, sc->ciss_cfg->max_outstanding_commands);
+
+ /*
+ * Create the DMA tag for commands.
+ */
+ if (bus_dma_tag_create(sc->ciss_parent_dmat, /* parent */
+ 1, 0, /* alignment, boundary */
+ BUS_SPACE_MAXADDR, /* lowaddr */
+ BUS_SPACE_MAXADDR, /* highaddr */
+ NULL, NULL, /* filter, filterarg */
+ CISS_COMMAND_ALLOC_SIZE *
+ sc->ciss_max_requests, 1, /* maxsize, nsegments */
+ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */
+ 0, /* flags */
+ &sc->ciss_command_dmat)) {
+ ciss_printf(sc, "can't allocate command DMA tag\n");
+ return(ENOMEM);
+ }
+ /*
+ * Allocate memory and make it available for DMA.
+ */
+ if (bus_dmamem_alloc(sc->ciss_command_dmat, (void **)&sc->ciss_command,
+ BUS_DMA_NOWAIT, &sc->ciss_command_map)) {
+ ciss_printf(sc, "can't allocate command memory\n");
+ return(ENOMEM);
+ }
+ bus_dmamap_load(sc->ciss_command_dmat, sc->ciss_command_map, sc->ciss_command,
+ sizeof(struct ciss_command) * sc->ciss_max_requests,
+ ciss_command_map_helper, sc, 0);
+ bzero(sc->ciss_command, CISS_COMMAND_ALLOC_SIZE * sc->ciss_max_requests);
+
+ /*
+ * Set up the request and command structures, push requests onto
+ * the free queue.
+ */
+ for (i = 1; i < sc->ciss_max_requests; i++) {
+ cr = &sc->ciss_request[i];
+ cr->cr_sc = sc;
+ cr->cr_tag = i;
+ ciss_enqueue_free(cr);
+ }
+ return(0);
+}
+
+static void
+ciss_command_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
+{
+ struct ciss_softc *sc = (struct ciss_softc *)arg;
+
+ sc->ciss_command_phys = segs->ds_addr;
+}
+
+/************************************************************************
+ * Identify the adapter, print some information about it.
+ */
+static int
+ciss_identify_adapter(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ int error, command_status;
+
+ debug_called(1);
+
+ cr = NULL;
+
+ /*
+ * Get a request, allocate storage for the adapter data.
+ */
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_CTLR,
+ (void **)&sc->ciss_id,
+ sizeof(*sc->ciss_id))) != 0)
+ goto out;
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC ID_CTLR command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
+ break;
+ case CISS_CMD_STATUS_DATA_UNDERRUN:
+ case CISS_CMD_STATUS_DATA_OVERRUN:
+ ciss_printf(sc, "data over/underrun reading adapter information\n");
+ default:
+ ciss_printf(sc, "error reading adapter information (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+
+ /* sanity-check reply */
+ if (!sc->ciss_id->big_map_supported) {
+ ciss_printf(sc, "adapter does not support BIG_MAP\n");
+ error = ENXIO;
+ goto out;
+ }
+
+ /* XXX later revisions may not need this */
+ sc->ciss_flags |= CISS_FLAG_FAKE_SYNCH;
+
+ /* XXX only really required for old 5300 adapters? */
+ sc->ciss_flags |= CISS_FLAG_BMIC_ABORT;
+
+ /* print information */
+ if (1/*bootverbose*/) {
+ ciss_printf(sc, " %d logical drive%s configured\n",
+ sc->ciss_id->configured_logical_drives,
+ (sc->ciss_id->configured_logical_drives == 1) ? "" : "s");
+ ciss_printf(sc, " firmware %4.4s\n", sc->ciss_id->running_firmware_revision);
+ ciss_printf(sc, " %d SCSI channels\n", sc->ciss_id->scsi_bus_count);
+
+ ciss_printf(sc, " signature '%.4s'\n", sc->ciss_cfg->signature);
+ ciss_printf(sc, " valence %d\n", sc->ciss_cfg->valence);
+ ciss_printf(sc, " supported I/O methods 0x%b\n",
+ sc->ciss_cfg->supported_methods,
+ "\20\1READY\2simple\3performant\4MEMQ\n");
+ ciss_printf(sc, " active I/O method 0x%b\n",
+ sc->ciss_cfg->active_method, "\20\2simple\3performant\4MEMQ\n");
+ ciss_printf(sc, " 4G page base 0x%08x\n",
+ sc->ciss_cfg->command_physlimit);
+ ciss_printf(sc, " interrupt coalesce delay %dus\n",
+ sc->ciss_cfg->interrupt_coalesce_delay);
+ ciss_printf(sc, " interrupt coalesce count %d\n",
+ sc->ciss_cfg->interrupt_coalesce_count);
+ ciss_printf(sc, " max outstanding commands %d\n",
+ sc->ciss_cfg->max_outstanding_commands);
+ ciss_printf(sc, " bus types 0x%b\n", sc->ciss_cfg->bus_types,
+ "\20\1ultra2\2ultra3\10fibre1\11fibre2\n");
+ ciss_printf(sc, " server name '%.16s'\n", sc->ciss_cfg->server_name);
+ ciss_printf(sc, " heartbeat 0x%x\n", sc->ciss_cfg->heartbeat);
+ }
+
+out:
+ if (error) {
+ if (sc->ciss_id != NULL) {
+ free(sc->ciss_id, CISS_MALLOC_CLASS);
+ sc->ciss_id = NULL;
+ }
+ }
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+/************************************************************************
+ * Find logical drives on the adapter.
+ */
+static int
+ciss_init_logical(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_report_cdb *crc;
+ struct ciss_lun_report *cll;
+ int error, i;
+ size_t report_size;
+ int ndrives;
+ int command_status;
+
+ debug_called(1);
+
+ cr = NULL;
+ cll = NULL;
+
+ /*
+ * Get a request, allocate storage for the address list.
+ */
+ if ((error = ciss_get_request(sc, &cr)) != 0)
+ goto out;
+ report_size = sizeof(*cll) + CISS_MAX_LOGICAL * sizeof(union ciss_device_address);
+ if ((cll = malloc(report_size, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
+ ciss_printf(sc, "can't allocate memory for logical drive list\n");
+ error = ENOMEM;
+ goto out;
+ }
+
+ /*
+ * Build the Report Logical LUNs command.
+ */
+ cc = CISS_FIND_COMMAND(cr);
+ cr->cr_data = cll;
+ cr->cr_length = report_size;
+ cr->cr_flags = CISS_REQ_DATAIN;
+
+ cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
+ cc->header.address.physical.bus = 0;
+ cc->header.address.physical.target = 0;
+ cc->cdb.cdb_length = sizeof(*crc);
+ cc->cdb.type = CISS_CDB_TYPE_COMMAND;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
+ cc->cdb.direction = CISS_CDB_DIRECTION_READ;
+ cc->cdb.timeout = 30; /* XXX better suggestions? */
+
+ crc = (struct ciss_report_cdb *)&(cc->cdb.cdb[0]);
+ bzero(crc, sizeof(*crc));
+ crc->opcode = CISS_OPCODE_REPORT_LOGICAL_LUNS;
+ crc->length = htonl(report_size); /* big-endian field */
+ cll->list_size = htonl(report_size - sizeof(*cll)); /* big-endian field */
+
+ /*
+ * Submit the request and wait for it to complete. (timeout
+ * here should be much greater than above)
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending Report Logical LUNs command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response. Note that data over/underrun is OK.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
+ case CISS_CMD_STATUS_DATA_UNDERRUN: /* buffer too large, not bad */
+ break;
+ case CISS_CMD_STATUS_DATA_OVERRUN:
+ ciss_printf(sc, "WARNING: more logical drives than driver limit (%d), adjust CISS_MAX_LOGICAL\n",
+ CISS_MAX_LOGICAL);
+ break;
+ default:
+ ciss_printf(sc, "error detecting logical drive configuration (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+ ciss_release_request(cr);
+ cr = NULL;
+
+ /* sanity-check reply */
+ ndrives = (ntohl(cll->list_size) / sizeof(union ciss_device_address));
+ if ((ndrives < 0) || (ndrives > CISS_MAX_LOGICAL)) {
+ ciss_printf(sc, "adapter claims to report absurd number of logical drives (%d > %d)\n",
+ ndrives, CISS_MAX_LOGICAL);
+ return(ENXIO);
+ }
+
+ /*
+ * Save logical drive information.
+ */
+ if (1/*bootverbose*/)
+ ciss_printf(sc, "%d logical drive%s\n", ndrives, (ndrives > 1) ? "s" : "");
+ if (ndrives != sc->ciss_id->configured_logical_drives)
+ ciss_printf(sc, "logical drive map claims %d drives, but adapter claims %d\n",
+ ndrives, sc->ciss_id->configured_logical_drives);
+ for (i = 0; i < CISS_MAX_LOGICAL; i++) {
+ if (i < ndrives) {
+ sc->ciss_logical[i].cl_address = cll->lun[i]; /* XXX endianness? */
+ if (ciss_identify_logical(sc, &sc->ciss_logical[i]) != 0)
+ continue;
+ /*
+ * If the drive has had media exchanged, we should bring it online.
+ */
+ if (sc->ciss_logical[i].cl_lstatus->media_exchanged)
+ ciss_accept_media(sc, i, 0);
+
+ } else {
+ sc->ciss_logical[i].cl_status = CISS_LD_NONEXISTENT;
+ }
+ }
+ error = 0;
+
+ out:
+ /*
+ * Note that if the error is a timeout, we are taking a slight
+ * risk here and assuming that the adapter will not respond at a
+ * later time, scribbling over host memory.
+ */
+ if (cr != NULL)
+ ciss_release_request(cr);
+ if (cll != NULL)
+ free(cll, CISS_MALLOC_CLASS);
+ return(error);
+}
+
+/************************************************************************
+ * Identify a logical drive, initialise state related to it.
+ */
+static int
+ciss_identify_logical(struct ciss_softc *sc, struct ciss_ldrive *ld)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_bmic_cdb *cbc;
+ int error, command_status;
+
+ debug_called(1);
+
+ cr = NULL;
+
+ /*
+ * Build a BMIC request to fetch the drive ID.
+ */
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LDRIVE,
+ (void **)&ld->cl_ldrive,
+ sizeof(*ld->cl_ldrive))) != 0)
+ goto out;
+ cc = CISS_FIND_COMMAND(cr);
+ cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
+ cbc->log_drive = ld->cl_address.logical.lun;
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC LDRIVE command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
+ break;
+ case CISS_CMD_STATUS_DATA_UNDERRUN:
+ case CISS_CMD_STATUS_DATA_OVERRUN:
+ ciss_printf(sc, "data over/underrun reading logical drive ID\n");
+ default:
+ ciss_printf(sc, "error reading logical drive ID (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+ ciss_release_request(cr);
+ cr = NULL;
+
+ /*
+ * Build a CISS BMIC command to get the logical drive status.
+ */
+ if ((error = ciss_get_ldrive_status(sc, ld)) != 0)
+ goto out;
+
+ /*
+ * Print the drive's basic characteristics.
+ */
+ if (1/*bootverbose*/) {
+ ciss_printf(sc, "logical drive %d: %s, %dMB ",
+ cbc->log_drive, ciss_name_ldrive_org(ld->cl_ldrive->fault_tolerance),
+ ((ld->cl_ldrive->blocks_available / (1024 * 1024)) *
+ ld->cl_ldrive->block_size));
+
+ ciss_print_ldrive(sc, ld);
+ }
+out:
+ if (error != 0) {
+ /* make the drive not-exist */
+ ld->cl_status = CISS_LD_NONEXISTENT;
+ if (ld->cl_ldrive != NULL) {
+ free(ld->cl_ldrive, CISS_MALLOC_CLASS);
+ ld->cl_ldrive = NULL;
+ }
+ if (ld->cl_lstatus != NULL) {
+ free(ld->cl_lstatus, CISS_MALLOC_CLASS);
+ ld->cl_lstatus = NULL;
+ }
+ }
+ if (cr != NULL)
+ ciss_release_request(cr);
+
+ return(error);
+}
+
+/************************************************************************
+ * Get status for a logical drive.
+ *
+ * XXX should we also do this in response to Test Unit Ready?
+ */
+static int
+ciss_get_ldrive_status(struct ciss_softc *sc, struct ciss_ldrive *ld)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_bmic_cdb *cbc;
+ int error, command_status;
+
+ /*
+ * Build a CISS BMIC command to get the logical drive status.
+ */
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ID_LSTATUS,
+ (void **)&ld->cl_lstatus,
+ sizeof(*ld->cl_lstatus))) != 0)
+ goto out;
+ cc = CISS_FIND_COMMAND(cr);
+ cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
+ cbc->log_drive = ld->cl_address.logical.lun;
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS: /* buffer right size */
+ break;
+ case CISS_CMD_STATUS_DATA_UNDERRUN:
+ case CISS_CMD_STATUS_DATA_OVERRUN:
+ ciss_printf(sc, "data over/underrun reading logical drive status\n");
+ default:
+ ciss_printf(sc, "error reading logical drive status (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+
+ /*
+ * Set the drive's summary status based on the returned status.
+ *
+ * XXX testing shows that a failed JBOD drive comes back at next
+ * boot in "queued for expansion" mode. WTF?
+ */
+ ld->cl_status = ciss_decode_ldrive_status(ld->cl_lstatus->status);
+
+out:
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+/************************************************************************
+ * Notify the adapter of a config update.
+ */
+static int
+ciss_update_config(struct ciss_softc *sc)
+{
+ int i;
+
+ debug_called(1);
+
+ CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IDBR, CISS_TL_SIMPLE_IDBR_CFG_TABLE);
+ for (i = 0; i < 1000; i++) {
+ if (!(CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IDBR) &
+ CISS_TL_SIMPLE_IDBR_CFG_TABLE)) {
+ return(0);
+ }
+ DELAY(1000);
+ }
+ return(1);
+}
+
+/************************************************************************
+ * Accept new media into a logical drive.
+ *
+ * XXX The drive has previously been offline; it would be good if we
+ * could make sure it's not open right now.
+ */
+static int
+ciss_accept_media(struct ciss_softc *sc, int ldrive, int async)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_bmic_cdb *cbc;
+ int error;
+
+ debug(0, "bringing logical drive %d back online %ssynchronously",
+ ldrive, async ? "a" : "");
+
+ /*
+ * Build a CISS BMIC command to bring the drive back online.
+ */
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_BMIC_ACCEPT_MEDIA,
+ NULL, 0)) != 0)
+ goto out;
+ cc = CISS_FIND_COMMAND(cr);
+ cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
+ cbc->log_drive = ldrive;
+
+ /*
+ * Dispatch the request asynchronously if we can't sleep waiting
+ * for it to complete.
+ */
+ if (async) {
+ cr->cr_complete = ciss_accept_media_complete;
+ if ((error = ciss_start(cr)) != 0)
+ goto out;
+ return(0);
+ } else {
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC LSTATUS command (%d)\n", error);
+ goto out;
+ }
+ }
+
+ /*
+ * Call the completion callback manually.
+ */
+ ciss_accept_media_complete(cr);
+ return(0);
+
+out:
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+static void
+ciss_accept_media_complete(struct ciss_request *cr)
+{
+ int command_status;
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS: /* all OK */
+ /* we should get a logical drive status changed event here */
+ break;
+ default:
+ ciss_printf(cr->cr_sc, "error accepting media into failed logical drive (%s)\n",
+ ciss_name_command_status(command_status));
+ break;
+ }
+ ciss_release_request(cr);
+}
+
+/************************************************************************
+ * Release adapter resources.
+ */
+static void
+ciss_free(struct ciss_softc *sc)
+{
+ debug_called(1);
+
+ /* we're going away */
+ sc->ciss_flags |= CISS_FLAG_ABORTING;
+
+ /* terminate the periodic heartbeat routine */
+ untimeout(ciss_periodic, sc, sc->ciss_periodic);
+
+ /* cancel the Event Notify chain */
+ ciss_notify_abort(sc);
+
+ /* free the controller data */
+ if (sc->ciss_id != NULL)
+ free(sc->ciss_id, CISS_MALLOC_CLASS);
+
+ /* release I/O resources */
+ if (sc->ciss_regs_resource != NULL)
+ bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
+ sc->ciss_regs_rid, sc->ciss_regs_resource);
+ if (sc->ciss_cfg_resource != NULL)
+ bus_release_resource(sc->ciss_dev, SYS_RES_MEMORY,
+ sc->ciss_cfg_rid, sc->ciss_cfg_resource);
+ if (sc->ciss_intr != NULL)
+ bus_teardown_intr(sc->ciss_dev, sc->ciss_irq_resource, sc->ciss_intr);
+ if (sc->ciss_irq_resource != NULL)
+ bus_release_resource(sc->ciss_dev, SYS_RES_IRQ,
+ sc->ciss_irq_rid, sc->ciss_irq_resource);
+
+ /* destroy DMA tags */
+ if (sc->ciss_parent_dmat)
+ bus_dma_tag_destroy(sc->ciss_parent_dmat);
+ if (sc->ciss_buffer_dmat)
+ bus_dma_tag_destroy(sc->ciss_buffer_dmat);
+
+ /* destroy command memory and DMA tag */
+ if (sc->ciss_command != NULL) {
+ bus_dmamap_unload(sc->ciss_command_dmat, sc->ciss_command_map);
+ bus_dmamem_free(sc->ciss_command_dmat, sc->ciss_command, sc->ciss_command_map);
+ }
+ if (sc->ciss_buffer_dmat)
+ bus_dma_tag_destroy(sc->ciss_command_dmat);
+
+ /* disconnect from CAM */
+ if (sc->ciss_cam_sim) {
+ xpt_bus_deregister(cam_sim_path(sc->ciss_cam_sim));
+ cam_sim_free(sc->ciss_cam_sim, 0);
+ }
+ if (sc->ciss_cam_devq)
+ cam_simq_free(sc->ciss_cam_devq);
+ /* XXX what about ciss_cam_path? */
+}
+
+/************************************************************************
+ * Give a command to the adapter.
+ *
+ * Note that this uses the simple transport layer directly. If we
+ * want to add support for other layers, we'll need a switch of some
+ * sort.
+ *
+ * Note that the simple transport layer has no way of refusing a
+ * command; we only have as many request structures as the adapter
+ * supports commands, so we don't have to check (this presumes that
+ * the adapter can handle commands as fast as we throw them at it).
+ */
+static int
+ciss_start(struct ciss_request *cr)
+{
+ struct ciss_command *cc; /* XXX debugging only */
+ int error;
+
+ cc = CISS_FIND_COMMAND(cr);
+ debug(2, "post command %d tag %d ", cr->cr_tag, cc->header.host_tag);
+
+ /*
+ * Map the request's data.
+ */
+ if ((error = ciss_map_request(cr)))
+ return(error);
+
+#if 0
+ ciss_print_request(cr);
+#endif
+
+ /*
+ * Post the command to the adapter.
+ */
+ ciss_enqueue_busy(cr);
+ CISS_TL_SIMPLE_POST_CMD(cr->cr_sc, CISS_FIND_COMMANDPHYS(cr));
+
+ return(0);
+}
+
+/************************************************************************
+ * Fetch completed request(s) from the adapter, queue them for
+ * completion handling.
+ *
+ * Note that this uses the simple transport layer directly. If we
+ * want to add support for other layers, we'll need a switch of some
+ * sort.
+ *
+ * Note that the simple transport mechanism does not require any
+ * reentrancy protection; the OPQ read is atomic. If there is a
+ * chance of a race with something else that might move the request
+ * off the busy list, then we will have to lock against that
+ * (eg. timeouts, etc.)
+ */
+static void
+ciss_done(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ u_int32_t tag, index;
+ int complete;
+
+ debug_called(3);
+
+ /*
+ * Loop quickly taking requests from the adapter and moving them
+ * from the busy queue to the completed queue.
+ */
+ complete = 0;
+ for (;;) {
+
+ /* see if the OPQ contains anything */
+ if (!CISS_TL_SIMPLE_OPQ_INTERRUPT(sc))
+ break;
+
+ tag = CISS_TL_SIMPLE_FETCH_CMD(sc);
+ if (tag == CISS_TL_SIMPLE_OPQ_EMPTY)
+ break;
+ index = tag >> 2;
+ debug(2, "completed command %d%s", index,
+ (tag & CISS_HDR_HOST_TAG_ERROR) ? " with error" : "");
+ if (index >= sc->ciss_max_requests) {
+ ciss_printf(sc, "completed invalid request %d (0x%x)\n", index, tag);
+ continue;
+ }
+ cr = &(sc->ciss_request[index]);
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.host_tag = tag; /* not updated by adapter */
+ if (ciss_remove_busy(cr)) {
+ /* assume this is garbage out of the adapter */
+ ciss_printf(sc, "completed nonbusy request %d\n", index);
+ } else {
+ ciss_enqueue_complete(cr);
+ }
+ complete = 1;
+ }
+
+ /*
+ * Invoke completion processing. If we can defer this out of
+ * interrupt context, that'd be good.
+ */
+ if (complete)
+ ciss_complete(sc);
+}
+
+/************************************************************************
+ * Take an interrupt from the adapter.
+ */
+static void
+ciss_intr(void *arg)
+{
+ struct ciss_softc *sc = (struct ciss_softc *)arg;
+
+ /*
+ * The only interrupt we recognise indicates that there are
+ * entries in the outbound post queue.
+ */
+ ciss_done(sc);
+}
+
+/************************************************************************
+ * Process completed requests.
+ *
+ * Requests can be completed in three fashions:
+ *
+ * - by invoking a callback function (cr_complete is non-null)
+ * - by waking up a sleeper (cr_flags has CISS_REQ_SLEEP set)
+ * - by clearing the CISS_REQ_POLL flag in interrupt/timeout context
+ */
+static void
+ciss_complete(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+
+ debug_called(2);
+
+ /*
+ * Loop taking requests off the completed queue and performing
+ * completion processing on them.
+ */
+ for (;;) {
+ if ((cr = ciss_dequeue_complete(sc)) == NULL)
+ break;
+ ciss_unmap_request(cr);
+
+ /*
+ * If the request has a callback, invoke it.
+ */
+ if (cr->cr_complete != NULL) {
+ cr->cr_complete(cr);
+ continue;
+ }
+
+ /*
+ * If someone is sleeping on this request, wake them up.
+ */
+ if (cr->cr_flags & CISS_REQ_SLEEP) {
+ cr->cr_flags &= ~CISS_REQ_SLEEP;
+ wakeup(cr);
+ continue;
+ }
+
+ /*
+ * If someone is polling this request for completion, signal.
+ */
+ if (cr->cr_flags & CISS_REQ_POLL) {
+ cr->cr_flags &= ~CISS_REQ_POLL;
+ continue;
+ }
+
+ /*
+ * Give up and throw the request back on the free queue. This
+ * should never happen; resources will probably be lost.
+ */
+ ciss_printf(sc, "WARNING: completed command with no submitter\n");
+ ciss_enqueue_free(cr);
+ }
+}
+
+/************************************************************************
+ * Report on the completion status of a request, and pass back SCSI
+ * and command status values.
+ */
+static int
+ciss_report_request(struct ciss_request *cr, int *command_status, int *scsi_status)
+{
+ struct ciss_command *cc;
+ struct ciss_error_info *ce;
+
+ debug_called(2);
+
+ cc = CISS_FIND_COMMAND(cr);
+ ce = (struct ciss_error_info *)&(cc->sg[0]);
+
+ /*
+ * We don't consider data under/overrun an error for the Report
+ * Logical/Physical LUNs commands.
+ */
+ if ((cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) &&
+ ((cc->cdb.cdb[0] == CISS_OPCODE_REPORT_LOGICAL_LUNS) ||
+ (cc->cdb.cdb[0] == CISS_OPCODE_REPORT_PHYSICAL_LUNS))) {
+ cc->header.host_tag &= ~CISS_HDR_HOST_TAG_ERROR;
+ debug(2, "ignoring irrelevant under/overrun error");
+ }
+
+ /*
+ * Check the command's error bit, if clear, there's no status and
+ * everything is OK.
+ */
+ if (!(cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR)) {
+ if (scsi_status != NULL)
+ *scsi_status = SCSI_STATUS_OK;
+ if (command_status != NULL)
+ *command_status = CISS_CMD_STATUS_SUCCESS;
+ return(0);
+ } else {
+ if (command_status != NULL)
+ *command_status = ce->command_status;
+ if (scsi_status != NULL) {
+ if (ce->command_status == CISS_CMD_STATUS_TARGET_STATUS) {
+ *scsi_status = ce->scsi_status;
+ } else {
+ *scsi_status = -1;
+ }
+ }
+ if (bootverbose)
+ ciss_printf(cr->cr_sc, "command status 0x%x (%s) scsi status 0x%x\n",
+ ce->command_status, ciss_name_command_status(ce->command_status),
+ ce->scsi_status);
+ if (ce->command_status == CISS_CMD_STATUS_INVALID_COMMAND) {
+ ciss_printf(cr->cr_sc, "invalid command, offense size %d at %d, value 0x%x\n",
+ ce->additional_error_info.invalid_command.offense_size,
+ ce->additional_error_info.invalid_command.offense_offset,
+ ce->additional_error_info.invalid_command.offense_value);
+ }
+ }
+ return(1);
+}
+
+/************************************************************************
+ * Issue a request and don't return until it's completed.
+ *
+ * Depending on adapter status, we may poll or sleep waiting for
+ * completion.
+ */
+static int
+ciss_synch_request(struct ciss_request *cr, int timeout)
+{
+ if (cr->cr_sc->ciss_flags & CISS_FLAG_RUNNING) {
+ return(ciss_wait_request(cr, timeout));
+ } else {
+ return(ciss_poll_request(cr, timeout));
+ }
+}
+
+/************************************************************************
+ * Issue a request and poll for completion.
+ *
+ * Timeout in milliseconds.
+ */
+static int
+ciss_poll_request(struct ciss_request *cr, int timeout)
+{
+ int error;
+
+ debug_called(2);
+
+ cr->cr_flags |= CISS_REQ_POLL;
+ if ((error = ciss_start(cr)) != 0)
+ return(error);
+
+ do {
+ ciss_done(cr->cr_sc);
+ if (!(cr->cr_flags & CISS_REQ_POLL))
+ return(0);
+ DELAY(1000);
+ } while (timeout-- >= 0);
+ return(EWOULDBLOCK);
+}
+
+/************************************************************************
+ * Issue a request and sleep waiting for completion.
+ *
+ * Timeout in milliseconds. Note that a spurious wakeup will reset
+ * the timeout.
+ */
+static int
+ciss_wait_request(struct ciss_request *cr, int timeout)
+{
+ int s, error;
+
+ debug_called(2);
+
+ cr->cr_flags |= CISS_REQ_SLEEP;
+ if ((error = ciss_start(cr)) != 0)
+ return(error);
+
+ s = splcam();
+ while (cr->cr_flags & CISS_REQ_SLEEP) {
+ error = tsleep(cr, PCATCH, "cissREQ", (timeout * hz) / 1000);
+ /*
+ * On wakeup or interruption due to restartable activity, go
+ * back and check to see if we're done.
+ */
+ if ((error == 0) || (error == ERESTART)) {
+ error = 0;
+ continue;
+ }
+ /*
+ * Timeout, interrupted system call, etc.
+ */
+ break;
+ }
+ splx(s);
+ return(error);
+}
+
+/************************************************************************
+ * Abort a request. Note that a potential exists here to race the
+ * request being completed; the caller must deal with this.
+ */
+static int
+ciss_abort_request(struct ciss_request *ar)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_message_cdb *cmc;
+ int error;
+
+ debug_called(1);
+
+ /* get a request */
+ if ((error = ciss_get_request(ar->cr_sc, &cr)) != 0)
+ return(error);
+
+ /* build the abort command */
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.address.mode.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL; /* addressing? */
+ cc->header.address.physical.target = 0;
+ cc->header.address.physical.bus = 0;
+ cc->cdb.cdb_length = sizeof(*cmc);
+ cc->cdb.type = CISS_CDB_TYPE_MESSAGE;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
+ cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
+ cc->cdb.timeout = 30;
+
+ cmc = (struct ciss_message_cdb *)&(cc->cdb.cdb[0]);
+ cmc->opcode = CISS_OPCODE_MESSAGE_ABORT;
+ cmc->type = CISS_MESSAGE_ABORT_TASK;
+ cmc->abort_tag = ar->cr_tag; /* endianness?? */
+
+ /*
+ * Send the request and wait for a response. If we believe we
+ * aborted the request OK, clear the flag that indicates it's
+ * running.
+ */
+ error = ciss_synch_request(cr, 35 * 1000);
+ if (!error)
+ error = ciss_report_request(cr, NULL, NULL);
+ ciss_release_request(cr);
+
+ return(error);
+}
+
+
+/************************************************************************
+ * Fetch and initialise a request
+ */
+static int
+ciss_get_request(struct ciss_softc *sc, struct ciss_request **crp)
+{
+ struct ciss_request *cr;
+
+ debug_called(2);
+
+ /*
+ * Get a request and clean it up.
+ */
+ if ((cr = ciss_dequeue_free(sc)) == NULL)
+ return(ENOMEM);
+
+ cr->cr_data = NULL;
+ cr->cr_flags = 0;
+ cr->cr_complete = NULL;
+
+ ciss_preen_command(cr);
+ *crp = cr;
+ return(0);
+}
+
+static void
+ciss_preen_command(struct ciss_request *cr)
+{
+ struct ciss_command *cc;
+ u_int32_t cmdphys;
+
+ /*
+ * Clean up the command structure.
+ *
+ * Note that we set up the error_info structure here, since the
+ * length can be overwritten by any command.
+ */
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.sg_in_list = 0; /* kinda inefficient this way */
+ cc->header.sg_total = 0;
+ cc->header.host_tag = cr->cr_tag << 2;
+ cc->header.host_tag_zeroes = 0;
+ cmdphys = CISS_FIND_COMMANDPHYS(cr);
+ cc->error_info.error_info_address = cmdphys + sizeof(struct ciss_command);
+ cc->error_info.error_info_length = CISS_COMMAND_ALLOC_SIZE - sizeof(struct ciss_command);
+
+}
+
+/************************************************************************
+ * Release a request to the free list.
+ */
+static void
+ciss_release_request(struct ciss_request *cr)
+{
+ struct ciss_softc *sc;
+
+ debug_called(2);
+
+ sc = cr->cr_sc;
+
+ /* release the request to the free queue */
+ ciss_requeue_free(cr);
+}
+
+/************************************************************************
+ * Allocate a request that will be used to send a BMIC command. Do some
+ * of the common setup here to avoid duplicating it everywhere else.
+ */
+static int
+ciss_get_bmic_request(struct ciss_softc *sc, struct ciss_request **crp,
+ int opcode, void **bufp, size_t bufsize)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_bmic_cdb *cbc;
+ void *buf;
+ int error;
+ int dataout;
+
+ debug_called(2);
+
+ cr = NULL;
+ buf = NULL;
+
+ /*
+ * Get a request.
+ */
+ if ((error = ciss_get_request(sc, &cr)) != 0)
+ goto out;
+
+ /*
+ * Allocate data storage if requested, determine the data direction.
+ */
+ dataout = 0;
+ if ((bufsize > 0) && (bufp != NULL)) {
+ if (*bufp == NULL) {
+ if ((buf = malloc(bufsize, CISS_MALLOC_CLASS, M_NOWAIT | M_ZERO)) == NULL) {
+ error = ENOMEM;
+ goto out;
+ }
+ } else {
+ buf = *bufp;
+ dataout = 1; /* we are given a buffer, so we are writing */
+ }
+ }
+
+ /*
+ * Build a CISS BMIC command to get the logical drive ID.
+ */
+ cr->cr_data = buf;
+ cr->cr_length = bufsize;
+ if (!dataout)
+ cr->cr_flags = CISS_REQ_DATAIN;
+
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
+ cc->header.address.physical.bus = 0;
+ cc->header.address.physical.target = 0;
+ cc->cdb.cdb_length = sizeof(*cbc);
+ cc->cdb.type = CISS_CDB_TYPE_COMMAND;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
+ cc->cdb.direction = dataout ? CISS_CDB_DIRECTION_WRITE : CISS_CDB_DIRECTION_READ;
+ cc->cdb.timeout = 0;
+
+ cbc = (struct ciss_bmic_cdb *)&(cc->cdb.cdb[0]);
+ bzero(cbc, sizeof(*cbc));
+ cbc->opcode = dataout ? CISS_ARRAY_CONTROLLER_WRITE : CISS_ARRAY_CONTROLLER_READ;
+ cbc->bmic_opcode = opcode;
+ cbc->size = htons((u_int16_t)bufsize);
+
+out:
+ if (error) {
+ if (cr != NULL)
+ ciss_release_request(cr);
+ if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
+ free(buf, CISS_MALLOC_CLASS);
+ } else {
+ *crp = cr;
+ if ((bufp != NULL) && (*bufp == NULL) && (buf != NULL))
+ *bufp = buf;
+ }
+ return(error);
+}
+
+/************************************************************************
+ * Handle a command passed in from userspace.
+ */
+static int
+ciss_user_command(struct ciss_softc *sc, IOCTL_Command_struct *ioc)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_error_info *ce;
+ int error;
+
+ debug_called(1);
+
+ cr = NULL;
+
+ /*
+ * Get a request.
+ */
+ if ((error = ciss_get_request(sc, &cr)) != 0)
+ goto out;
+ cc = CISS_FIND_COMMAND(cr);
+
+ /*
+ * Allocate an in-kernel databuffer if required, copy in user data.
+ */
+ cr->cr_length = ioc->buf_size;
+ if (ioc->buf_size > 0) {
+ if ((cr->cr_data = malloc(ioc->buf_size, CISS_MALLOC_CLASS, M_WAITOK)) == NULL) {
+ error = ENOMEM;
+ goto out;
+ }
+ if ((error = copyin(ioc->buf, cr->cr_data, ioc->buf_size))) {
+ debug(0, "copyin: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
+ goto out;
+ }
+ }
+
+ /*
+ * Build the request based on the user command.
+ */
+ bcopy(&ioc->LUN_info, &cc->header.address, sizeof(cc->header.address));
+ bcopy(&ioc->Request, &cc->cdb, sizeof(cc->cdb));
+
+ /* XXX anything else to populate here? */
+
+ /*
+ * Run the command.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000))) {
+ debug(0, "request failed - %d", error);
+ goto out;
+ }
+
+ /*
+ * Copy the results back to the user.
+ */
+ ce = (struct ciss_error_info *)&(cc->sg[0]);
+ bcopy(ce, &ioc->error_info, sizeof(*ce));
+ if ((ioc->buf_size > 0) &&
+ (error = copyout(cr->cr_data, ioc->buf, ioc->buf_size))) {
+ debug(0, "copyout: bad data buffer %p/%d", ioc->buf, ioc->buf_size);
+ goto out;
+ }
+
+ /* done OK */
+ error = 0;
+
+out:
+ if ((cr != NULL) && (cr->cr_data != NULL))
+ free(cr->cr_data, CISS_MALLOC_CLASS);
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+/************************************************************************
+ * Map a request into bus-visible space, initialise the scatter/gather
+ * list.
+ */
+static int
+ciss_map_request(struct ciss_request *cr)
+{
+ struct ciss_softc *sc;
+
+ debug_called(2);
+
+ sc = cr->cr_sc;
+
+ /* check that mapping is necessary */
+ if ((cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
+ return(0);
+
+ bus_dmamap_load(sc->ciss_buffer_dmat, cr->cr_datamap, cr->cr_data, cr->cr_length,
+ ciss_request_map_helper, CISS_FIND_COMMAND(cr), 0);
+
+ if (cr->cr_flags & CISS_REQ_DATAIN)
+ bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREREAD);
+ if (cr->cr_flags & CISS_REQ_DATAOUT)
+ bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_PREWRITE);
+
+ cr->cr_flags |= CISS_REQ_MAPPED;
+ return(0);
+}
+
+static void
+ciss_request_map_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error)
+{
+ struct ciss_command *cc;
+ int i;
+
+ debug_called(2);
+
+ cc = (struct ciss_command *)arg;
+ for (i = 0; i < nseg; i++) {
+ cc->sg[i].address = segs[i].ds_addr;
+ cc->sg[i].length = segs[i].ds_len;
+ cc->sg[i].extension = 0;
+ }
+ /* we leave the s/g table entirely within the command */
+ cc->header.sg_in_list = nseg;
+ cc->header.sg_total = nseg;
+}
+
+/************************************************************************
+ * Unmap a request from bus-visible space.
+ */
+static void
+ciss_unmap_request(struct ciss_request *cr)
+{
+ struct ciss_softc *sc;
+
+ debug_called(2);
+
+ sc = cr->cr_sc;
+
+ /* check that unmapping is necessary */
+ if (!(cr->cr_flags & CISS_REQ_MAPPED) || (cr->cr_data == NULL))
+ return;
+
+ if (cr->cr_flags & CISS_REQ_DATAIN)
+ bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTREAD);
+ if (cr->cr_flags & CISS_REQ_DATAOUT)
+ bus_dmamap_sync(sc->ciss_buffer_dmat, cr->cr_datamap, BUS_DMASYNC_POSTWRITE);
+
+ bus_dmamap_unload(sc->ciss_buffer_dmat, cr->cr_datamap);
+ cr->cr_flags &= ~CISS_REQ_MAPPED;
+}
+
+/************************************************************************
+ * Attach the driver to CAM.
+ *
+ * We put all the logical drives on a single SCSI bus.
+ */
+static int
+ciss_cam_init(struct ciss_softc *sc)
+{
+
+ debug_called(1);
+
+ /*
+ * Allocate a devq. We can reuse this for the masked physical
+ * devices if we decide to export these as well.
+ */
+ if ((sc->ciss_cam_devq = cam_simq_alloc(sc->ciss_max_requests)) == NULL) {
+ ciss_printf(sc, "can't allocate CAM SIM queue\n");
+ return(ENOMEM);
+ }
+
+ /*
+ * Create a SIM.
+ */
+ if ((sc->ciss_cam_sim = cam_sim_alloc(ciss_cam_action, ciss_cam_poll, "ciss", sc,
+ device_get_unit(sc->ciss_dev), 1,
+ sc->ciss_cfg->max_outstanding_commands,
+ sc->ciss_cam_devq)) == NULL) {
+ ciss_printf(sc, "can't allocate CAM SIM\n");
+ return(ENOMEM);
+ }
+
+ /*
+ * Register bus 0 (the 'logical drives' bus) with this SIM.
+ */
+ if (xpt_bus_register(sc->ciss_cam_sim, 0) != 0) {
+ ciss_printf(sc, "can't register SCSI bus 0\n");
+ return(ENXIO);
+ }
+
+ /*
+ * Initiate a rescan of the bus.
+ */
+ ciss_cam_rescan_all(sc);
+
+ return(0);
+}
+
+/************************************************************************
+ * Initiate a rescan of the 'logical devices' SIM
+ */
+static void
+ciss_cam_rescan_target(struct ciss_softc *sc, int target)
+{
+ union ccb *ccb;
+
+ debug_called(1);
+
+ if ((ccb = malloc(sizeof(union ccb), M_TEMP, M_WAITOK | M_ZERO)) == NULL) {
+ ciss_printf(sc, "rescan failed (can't allocate CCB)\n");
+ return;
+ }
+
+ if (xpt_create_path(&sc->ciss_cam_path, xpt_periph, cam_sim_path(sc->ciss_cam_sim), target, 0)
+ != CAM_REQ_CMP) {
+ ciss_printf(sc, "rescan failed (can't create path)\n");
+ return;
+ }
+
+ xpt_setup_ccb(&ccb->ccb_h, sc->ciss_cam_path, 5/*priority (low)*/);
+ ccb->ccb_h.func_code = XPT_SCAN_BUS;
+ ccb->ccb_h.cbfcnp = ciss_cam_rescan_callback;
+ ccb->crcn.flags = CAM_FLAG_NONE;
+ xpt_action(ccb);
+
+ /* scan is now in progress */
+}
+
+static void
+ciss_cam_rescan_all(struct ciss_softc *sc)
+{
+ return(ciss_cam_rescan_target(sc, 0));
+}
+
+static void
+ciss_cam_rescan_callback(struct cam_periph *periph, union ccb *ccb)
+{
+ free(ccb, M_TEMP);
+}
+
+/************************************************************************
+ * Handle requests coming from CAM
+ */
+static void
+ciss_cam_action(struct cam_sim *sim, union ccb *ccb)
+{
+ switch (ccb->ccb_h.func_code) {
+
+ /* perform SCSI I/O */
+ case XPT_SCSI_IO:
+ if (!ciss_cam_action_io(sim, (struct ccb_scsiio *)&ccb->csio))
+ return;
+ break;
+
+ /* perform geometry calculations */
+ case XPT_CALC_GEOMETRY:
+ {
+ struct ccb_calc_geometry *ccg = &ccb->ccg;
+ u_int32_t secs_per_cylinder;
+
+ debug(1, "XPT_CALC_GEOMETRY %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+
+ /*
+ * This is the default geometry; hopefully we will have
+ * successfully talked to the 'disk' and obtained its private
+ * settings.
+ */
+ ccg->heads = 255;
+ ccg->secs_per_track = 32;
+ secs_per_cylinder = ccg->heads * ccg->secs_per_track;
+ ccg->cylinders = ccg->volume_size / secs_per_cylinder;
+ ccb->ccb_h.status = CAM_REQ_CMP;
+ break;
+ }
+
+ /* handle path attribute inquiry */
+ case XPT_PATH_INQ:
+ {
+ struct ccb_pathinq *cpi = &ccb->cpi;
+
+ debug(1, "XPT_PATH_INQ %d:%d:%d", cam_sim_bus(sim), ccb->ccb_h.target_id, ccb->ccb_h.target_lun);
+
+ cpi->version_num = 1;
+ cpi->hba_inquiry = PI_TAG_ABLE; /* XXX is this correct? */
+ cpi->target_sprt = 0;
+ cpi->hba_misc = 0;
+ cpi->max_target = CISS_MAX_LOGICAL;
+ cpi->max_lun = 0; /* 'logical drive' channel only */
+ cpi->initiator_id = CISS_MAX_LOGICAL;
+ strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
+ strncpy(cpi->hba_vid, "msmith@freebsd.org", HBA_IDLEN);
+ strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
+ cpi->unit_number = cam_sim_unit(sim);
+ cpi->bus_id = cam_sim_bus(sim);
+ cpi->base_transfer_speed = 132 * 1024; /* XXX what to set this to? */
+ ccb->ccb_h.status = CAM_REQ_CMP;
+ break;
+ }
+
+ case XPT_GET_TRAN_SETTINGS:
+ {
+ struct ccb_trans_settings *cts = &ccb->cts;
+ int bus, target;
+
+ bus = cam_sim_bus(sim);
+ target = cts->ccb_h.target_id;
+
+ debug(1, "XPT_GET_TRAN_SETTINGS %d:%d", bus, target);
+ cts->valid = 0;
+
+ /* disconnect always OK */
+ cts->flags |= CCB_TRANS_DISC_ENB;
+ cts->valid |= CCB_TRANS_DISC_VALID;
+
+ cts->ccb_h.status = CAM_REQ_CMP;
+ break;
+ }
+
+ default: /* we can't do this */
+ debug(1, "unspported func_code = 0x%x", ccb->ccb_h.func_code);
+ ccb->ccb_h.status = CAM_REQ_INVALID;
+ break;
+ }
+
+ xpt_done(ccb);
+}
+
+/************************************************************************
+ * Handle a CAM SCSI I/O request.
+ */
+static int
+ciss_cam_action_io(struct cam_sim *sim, struct ccb_scsiio *csio)
+{
+ struct ciss_softc *sc;
+ int bus, target;
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ int error;
+
+ sc = cam_sim_softc(sim);
+ bus = cam_sim_bus(sim);
+ target = csio->ccb_h.target_id;
+
+ debug(2, "XPT_SCSI_IO %d:%d:%d", bus, target, csio->ccb_h.target_lun);
+
+ /* check for I/O attempt to nonexistent device */
+ if ((bus != 0) ||
+ (target > CISS_MAX_LOGICAL) ||
+ (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT)) {
+ debug(3, " device does not exist");
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ }
+
+ /* firmware does not support commands > 10 bytes */
+ if (csio->cdb_len > 12/*CISS_CDB_BUFFER_SIZE*/) {
+ debug(3, " command too large (%d > %d)", csio->cdb_len, CISS_CDB_BUFFER_SIZE);
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ }
+
+ /* check that the CDB pointer is not to a physical address */
+ if ((csio->ccb_h.flags & CAM_CDB_POINTER) && (csio->ccb_h.flags & CAM_CDB_PHYS)) {
+ debug(3, " CDB pointer is to physical address");
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ }
+
+ /* if there is data transfer, it must be to/from a virtual address */
+ if ((csio->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
+ if (csio->ccb_h.flags & CAM_DATA_PHYS) { /* we can't map it */
+ debug(3, " data pointer is to physical address");
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ }
+ if (csio->ccb_h.flags & CAM_SCATTER_VALID) { /* we want to do the s/g setup */
+ debug(3, " data has premature s/g setup");
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ }
+ }
+
+ /* abandon aborted ccbs or those that have failed validation */
+ if ((csio->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
+ debug(3, "abandoning CCB due to abort/validation failure");
+ return(EINVAL);
+ }
+
+ /* handle emulation of some SCSI commands ourself */
+ if (ciss_cam_emulate(sc, csio))
+ return(0);
+
+ /*
+ * Get a request to manage this command. If we can't, return the
+ * ccb, freeze the queue and flag so that we unfreeze it when a
+ * request completes.
+ */
+ if ((error = ciss_get_request(sc, &cr)) != 0) {
+ xpt_freeze_simq(sc->ciss_cam_sim, 1);
+ csio->ccb_h.status |= CAM_REQUEUE_REQ;
+ return(error);
+ }
+
+ /*
+ * Build the command.
+ */
+ cc = CISS_FIND_COMMAND(cr);
+ cr->cr_data = csio->data_ptr;
+ cr->cr_length = csio->dxfer_len;
+ cr->cr_complete = ciss_cam_complete;
+ cr->cr_private = csio;
+
+ cc->header.address.logical.mode = CISS_HDR_ADDRESS_MODE_LOGICAL;
+ cc->header.address.logical.lun = target;
+ cc->cdb.cdb_length = csio->cdb_len;
+ cc->cdb.type = CISS_CDB_TYPE_COMMAND;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE; /* XXX ordered tags? */
+ if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
+ cr->cr_flags = CISS_REQ_DATAOUT;
+ cc->cdb.direction = CISS_CDB_DIRECTION_WRITE;
+ } else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
+ cr->cr_flags = CISS_REQ_DATAIN;
+ cc->cdb.direction = CISS_CDB_DIRECTION_READ;
+ } else {
+ cr->cr_flags = 0;
+ cc->cdb.direction = CISS_CDB_DIRECTION_NONE;
+ }
+ cc->cdb.timeout = (csio->ccb_h.timeout / 1000) + 1;
+ if (csio->ccb_h.flags & CAM_CDB_POINTER) {
+ bcopy(csio->cdb_io.cdb_ptr, &cc->cdb.cdb[0], csio->cdb_len);
+ } else {
+ bcopy(csio->cdb_io.cdb_bytes, &cc->cdb.cdb[0], csio->cdb_len);
+ }
+
+ /*
+ * Submit the request to the adapter.
+ *
+ * Note that this may fail if we're unable to map the request (and
+ * if we ever learn a transport layer other than simple, may fail
+ * if the adapter rejects the command).
+ */
+ if ((error = ciss_start(cr)) != 0) {
+ xpt_freeze_simq(sc->ciss_cam_sim, 1);
+ csio->ccb_h.status |= CAM_REQUEUE_REQ;
+ ciss_release_request(cr);
+ return(error);
+ }
+
+ return(0);
+}
+
+/************************************************************************
+ * Emulate SCSI commands the adapter doesn't handle as we might like.
+ */
+static int
+ciss_cam_emulate(struct ciss_softc *sc, struct ccb_scsiio *csio)
+{
+ int target;
+ u_int8_t opcode;
+
+
+ target = csio->ccb_h.target_id;
+ opcode = (csio->ccb_h.flags & CAM_CDB_POINTER) ?
+ *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0];
+
+ /*
+ * Handle requests for volumes that don't exist. A selection timeout
+ * is slightly better than an illegal request. Other errors might be
+ * better.
+ */
+ if (sc->ciss_logical[target].cl_status == CISS_LD_NONEXISTENT) {
+ csio->ccb_h.status = CAM_SEL_TIMEOUT;
+ xpt_done((union ccb *)csio);
+ return(1);
+ }
+
+ /*
+ * Handle requests for volumes that exist but are offline.
+ *
+ * I/O operations should fail, everything else should work.
+ */
+ if (sc->ciss_logical[target].cl_status == CISS_LD_OFFLINE) {
+ switch(opcode) {
+ case READ_6:
+ case READ_10:
+ case READ_12:
+ case WRITE_6:
+ case WRITE_10:
+ case WRITE_12:
+ csio->ccb_h.status = CAM_SEL_TIMEOUT;
+ xpt_done((union ccb *)csio);
+ return(1);
+ }
+ }
+
+
+ /* if we have to fake Synchronise Cache */
+ if (sc->ciss_flags & CISS_FLAG_FAKE_SYNCH) {
+
+ /*
+ * If this is a Synchronise Cache command, typically issued when
+ * a device is closed, flush the adapter and complete now.
+ */
+ if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
+ *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
+ ciss_flush_adapter(sc);
+ csio->ccb_h.status = CAM_REQ_CMP;
+ xpt_done((union ccb *)csio);
+ return(1);
+ }
+ }
+
+ return(0);
+}
+
+/************************************************************************
+ * Check for possibly-completed commands.
+ */
+static void
+ciss_cam_poll(struct cam_sim *sim)
+{
+ struct ciss_softc *sc = cam_sim_softc(sim);
+
+ debug_called(2);
+
+ ciss_done(sc);
+}
+
+/************************************************************************
+ * Handle completion of a command - pass results back through the CCB
+ */
+static void
+ciss_cam_complete(struct ciss_request *cr)
+{
+ struct ciss_softc *sc;
+ struct ciss_command *cc;
+ struct ciss_error_info *ce;
+ struct ccb_scsiio *csio;
+ int scsi_status;
+ int command_status;
+
+ debug_called(2);
+
+ sc = cr->cr_sc;
+ cc = CISS_FIND_COMMAND(cr);
+ ce = (struct ciss_error_info *)&(cc->sg[0]);
+ csio = (struct ccb_scsiio *)cr->cr_private;
+
+ /*
+ * Extract status values from request.
+ */
+ ciss_report_request(cr, &command_status, &scsi_status);
+ csio->scsi_status = scsi_status;
+
+ /*
+ * Handle specific SCSI status values.
+ */
+ switch(scsi_status) {
+ /* no status due to adapter error */
+ case -1:
+ debug(0, "adapter error");
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ break;
+
+ /* no status due to command completed OK */
+ case SCSI_STATUS_OK: /* CISS_SCSI_STATUS_GOOD */
+ debug(2, "SCSI_STATUS_OK");
+ csio->ccb_h.status = CAM_REQ_CMP;
+ break;
+
+ /* check condition, sense data included */
+ case SCSI_STATUS_CHECK_COND: /* CISS_SCSI_STATUS_CHECK_CONDITION */
+ debug(0, "SCSI_STATUS_CHECK_COND sense size %d resid %d",
+ ce->sense_length, ce->residual_count);
+ bzero(&csio->sense_data, SSD_FULL_SIZE);
+ bcopy(&ce->sense_info[0], &csio->sense_data, ce->sense_length);
+ csio->sense_len = ce->sense_length;
+ csio->resid = ce->residual_count;
+ csio->ccb_h.status = CAM_SCSI_STATUS_ERROR | CAM_AUTOSNS_VALID;
+#ifdef CISS_DEBUG
+ {
+ struct scsi_sense_data *sns = (struct scsi_sense_data *)&ce->sense_info[0];
+ debug(0, "sense key %x", sns->flags & SSD_KEY);
+ }
+#endif
+ break;
+
+ case SCSI_STATUS_BUSY: /* CISS_SCSI_STATUS_BUSY */
+ debug(0, "SCSI_STATUS_BUSY");
+ csio->ccb_h.status = CAM_SCSI_BUSY;
+ break;
+
+ default:
+ debug(0, "unknown status 0x%x", csio->scsi_status);
+ csio->ccb_h.status = CAM_REQ_CMP_ERR;
+ break;
+ }
+
+ /* handle post-command fixup */
+ ciss_cam_complete_fixup(sc, csio);
+
+ xpt_done((union ccb *)csio);
+ ciss_release_request(cr);
+}
+
+/********************************************************************************
+ * Fix up the result of some commands here.
+ */
+static void
+ciss_cam_complete_fixup(struct ciss_softc *sc, struct ccb_scsiio *csio)
+{
+ struct scsi_inquiry_data *inq;
+ struct ciss_ldrive *cl;
+ int target;
+
+ if (((csio->ccb_h.flags & CAM_CDB_POINTER) ?
+ *(u_int8_t *)csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes[0]) == INQUIRY) {
+
+ inq = (struct scsi_inquiry_data *)csio->data_ptr;
+ target = csio->ccb_h.target_id;
+ cl = &sc->ciss_logical[target];
+
+ padstr(inq->vendor, ciss_name_ldrive_org(cl->cl_ldrive->fault_tolerance), 8);
+ padstr(inq->product, ciss_name_ldrive_status(cl->cl_lstatus->status), 16);
+ padstr(inq->revision, "", 4);
+ }
+}
+
+
+/********************************************************************************
+ * Find a peripheral attahed at (target)
+ */
+static struct cam_periph *
+ciss_find_periph(struct ciss_softc *sc, int target)
+{
+ struct cam_periph *periph;
+ struct cam_path *path;
+ int status;
+
+ status = xpt_create_path(&path, NULL, cam_sim_path(sc->ciss_cam_sim), target, 0);
+ if (status == CAM_REQ_CMP) {
+ periph = cam_periph_find(path, NULL);
+ xpt_free_path(path);
+ } else {
+ periph = NULL;
+ }
+ return(periph);
+}
+
+/********************************************************************************
+ * Name the device at (target)
+ *
+ * XXX is this strictly correct?
+ */
+int
+ciss_name_device(struct ciss_softc *sc, int target)
+{
+ struct cam_periph *periph;
+
+ if ((periph = ciss_find_periph(sc, target)) != NULL) {
+ sprintf(sc->ciss_logical[target].cl_name, "%s%d", periph->periph_name, periph->unit_number);
+ return(0);
+ }
+ sc->ciss_logical[target].cl_name[0] = 0;
+ return(ENOENT);
+}
+
+/************************************************************************
+ * Periodic status monitoring.
+ */
+static void
+ciss_periodic(void *arg)
+{
+ struct ciss_softc *sc;
+
+ debug_called(1);
+
+ sc = (struct ciss_softc *)arg;
+
+ /*
+ * Check the adapter heartbeat.
+ */
+ if (sc->ciss_cfg->heartbeat == sc->ciss_heartbeat) {
+ sc->ciss_heart_attack++;
+ debug(0, "adapter heart attack in progress 0x%x/%d",
+ sc->ciss_heartbeat, sc->ciss_heart_attack);
+ if (sc->ciss_heart_attack == 3) {
+ ciss_printf(sc, "ADAPTER HEARTBEAT FAILED\n");
+ /* XXX should reset adapter here */
+ }
+ } else {
+ sc->ciss_heartbeat = sc->ciss_cfg->heartbeat;
+ sc->ciss_heart_attack = 0;
+ debug(3, "new heartbeat 0x%x", sc->ciss_heartbeat);
+ }
+
+ /*
+ * If the notify event request has died for some reason, or has
+ * not started yet, restart it.
+ */
+ if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK)) {
+ debug(0, "(re)starting Event Notify chain");
+ ciss_notify_event(sc);
+ }
+
+ /*
+ * Reschedule.
+ */
+ if (!(sc->ciss_flags & CISS_FLAG_ABORTING))
+ sc->ciss_periodic = timeout(ciss_periodic, sc, CISS_HEARTBEAT_RATE * hz);
+}
+
+/************************************************************************
+ * Request a notification response from the adapter.
+ *
+ * If (cr) is NULL, this is the first request of the adapter, so
+ * reset the adapter's message pointer and start with the oldest
+ * message available.
+ */
+static void
+ciss_notify_event(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_notify_cdb *cnc;
+ int error;
+
+ debug_called(1);
+
+ cr = sc->ciss_periodic_notify;
+
+ /* get a request if we don't already have one */
+ if (cr == NULL) {
+ if ((error = ciss_get_request(sc, &cr)) != 0) {
+ debug(0, "can't get notify event request");
+ goto out;
+ }
+ sc->ciss_periodic_notify = cr;
+ cr->cr_complete = ciss_notify_complete;
+ debug(1, "acquired request %d", cr->cr_tag);
+ }
+
+ /*
+ * Get a databuffer if we don't already have one, note that the
+ * adapter command wants a larger buffer than the actual
+ * structure.
+ */
+ if (cr->cr_data == NULL) {
+ if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
+ debug(0, "can't get notify event request buffer");
+ error = ENOMEM;
+ goto out;
+ }
+ cr->cr_length = CISS_NOTIFY_DATA_SIZE;
+ }
+
+ /* re-setup the request's command (since we never release it) XXX overkill*/
+ ciss_preen_command(cr);
+
+ /* (re)build the notify event command */
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
+ cc->header.address.physical.bus = 0;
+ cc->header.address.physical.target = 0;
+
+ cc->cdb.cdb_length = sizeof(*cnc);
+ cc->cdb.type = CISS_CDB_TYPE_COMMAND;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
+ cc->cdb.direction = CISS_CDB_DIRECTION_READ;
+ cc->cdb.timeout = 0; /* no timeout, we hope */
+
+ cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
+ bzero(cr->cr_data, CISS_NOTIFY_DATA_SIZE);
+ cnc->opcode = CISS_OPCODE_READ;
+ cnc->command = CISS_COMMAND_NOTIFY_ON_EVENT;
+ cnc->timeout = 0; /* no timeout, we hope */
+ cnc->synchronous = 0;
+ cnc->ordered = 0;
+ cnc->seek_to_oldest = 0;
+ cnc->new_only = 0;
+ cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
+
+ /* submit the request */
+ error = ciss_start(cr);
+
+ out:
+ if (error) {
+ if (cr != NULL) {
+ if (cr->cr_data != NULL)
+ free(cr->cr_data, CISS_MALLOC_CLASS);
+ ciss_release_request(cr);
+ }
+ sc->ciss_periodic_notify = NULL;
+ debug(0, "can't submit notify event request");
+ sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
+ } else {
+ debug(1, "notify event submitted");
+ sc->ciss_flags |= CISS_FLAG_NOTIFY_OK;
+ }
+}
+
+static void
+ciss_notify_complete(struct ciss_request *cr)
+{
+ struct ciss_command *cc;
+ struct ciss_notify *cn;
+ struct ciss_softc *sc;
+ int scsi_status;
+ int command_status;
+
+ debug_called(1);
+
+ cc = CISS_FIND_COMMAND(cr);
+ cn = (struct ciss_notify *)cr->cr_data;
+ sc = cr->cr_sc;
+
+ /*
+ * Report request results, decode status.
+ */
+ ciss_report_request(cr, &command_status, &scsi_status);
+
+ /*
+ * Abort the chain on a fatal error.
+ *
+ * XXX which of these are actually errors?
+ */
+ if ((command_status != CISS_CMD_STATUS_SUCCESS) &&
+ (command_status != CISS_CMD_STATUS_TARGET_STATUS) &&
+ (command_status != CISS_CMD_STATUS_TIMEOUT)) { /* XXX timeout? */
+ ciss_printf(sc, "fatal error in Notify Event request (%s)\n",
+ ciss_name_command_status(command_status));
+ ciss_release_request(cr);
+ sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
+ return;
+ }
+
+ /*
+ * If the adapter gave us a text message, print it.
+ */
+ if (cn->message[0] != 0)
+ ciss_printf(sc, "*** %.80s\n", cn->message);
+
+ debug(0, "notify event class %d subclass %d detail %d",
+ cn->class, cn->subclass, cn->detail);
+
+ /*
+ * If there's room, save the event for a user-level tool.
+ */
+ if (((sc->ciss_notify_head + 1) % CISS_MAX_EVENTS) != sc->ciss_notify_tail) {
+ sc->ciss_notify[sc->ciss_notify_head] = *cn;
+ sc->ciss_notify_head = (sc->ciss_notify_head + 1) % CISS_MAX_EVENTS;
+ }
+
+ /*
+ * Some events are directly of interest to us.
+ */
+ switch (cn->class) {
+ case CISS_NOTIFY_LOGICAL:
+ ciss_notify_logical(sc, cn);
+ break;
+ case CISS_NOTIFY_PHYSICAL:
+ ciss_notify_physical(sc, cn);
+ break;
+ }
+
+ /*
+ * If the response indicates that the notifier has been aborted,
+ * release the notifier command.
+ */
+ if ((cn->class == CISS_NOTIFY_NOTIFIER) &&
+ (cn->subclass == CISS_NOTIFY_NOTIFIER_STATUS) &&
+ (cn->detail == 1)) {
+ debug(0, "notifier exiting");
+ sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
+ ciss_release_request(cr);
+ sc->ciss_periodic_notify = NULL;
+ wakeup(&sc->ciss_periodic_notify);
+ }
+
+ /*
+ * Send a new notify event command, if we're not aborting.
+ */
+ if (!(sc->ciss_flags & CISS_FLAG_ABORTING)) {
+ ciss_notify_event(sc);
+ }
+}
+
+/************************************************************************
+ * Abort the Notify Event chain.
+ *
+ * Note that we can't just abort the command in progress; we have to
+ * explicitly issue an Abort Notify Event command in order for the
+ * adapter to clean up correctly.
+ *
+ * If we are called with CISS_FLAG_ABORTING set in the adapter softc,
+ * the chain will not restart itself.
+ */
+static int
+ciss_notify_abort(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ struct ciss_command *cc;
+ struct ciss_notify_cdb *cnc;
+ int error, s, command_status, scsi_status;
+
+ debug_called(1);
+
+ cr = NULL;
+ error = 0;
+
+ /* verify that there's an outstanding command */
+ if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
+ goto out;
+
+ /* get a command to issue the abort with */
+ if ((error = ciss_get_request(sc, &cr)))
+ goto out;
+
+ /* get a buffer for the result */
+ if ((cr->cr_data = malloc(CISS_NOTIFY_DATA_SIZE, CISS_MALLOC_CLASS, M_NOWAIT)) == NULL) {
+ debug(0, "can't get notify event request buffer");
+ error = ENOMEM;
+ goto out;
+ }
+ cr->cr_length = CISS_NOTIFY_DATA_SIZE;
+
+ /* build the CDB */
+ cc = CISS_FIND_COMMAND(cr);
+ cc->header.address.physical.mode = CISS_HDR_ADDRESS_MODE_PERIPHERAL;
+ cc->header.address.physical.bus = 0;
+ cc->header.address.physical.target = 0;
+ cc->cdb.cdb_length = sizeof(*cnc);
+ cc->cdb.type = CISS_CDB_TYPE_COMMAND;
+ cc->cdb.attribute = CISS_CDB_ATTRIBUTE_SIMPLE;
+ cc->cdb.direction = CISS_CDB_DIRECTION_READ;
+ cc->cdb.timeout = 0; /* no timeout, we hope */
+
+ cnc = (struct ciss_notify_cdb *)&(cc->cdb.cdb[0]);
+ bzero(cnc, sizeof(*cnc));
+ cnc->opcode = CISS_OPCODE_WRITE;
+ cnc->command = CISS_COMMAND_ABORT_NOTIFY;
+ cnc->length = htonl(CISS_NOTIFY_DATA_SIZE);
+
+ ciss_print_request(cr);
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "Abort Notify Event command failed (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, &scsi_status);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS:
+ break;
+ case CISS_CMD_STATUS_INVALID_COMMAND:
+ /*
+ * Some older adapters don't support the CISS version of this
+ * command. Fall back to using the BMIC version.
+ */
+ error = ciss_notify_abort_bmic(sc);
+ if (error != 0)
+ goto out;
+ break;
+
+ case CISS_CMD_STATUS_TARGET_STATUS:
+ /*
+ * This can happen if the adapter thinks there wasn't an outstanding
+ * Notify Event command but we did. We clean up here.
+ */
+ if (scsi_status == CISS_SCSI_STATUS_CHECK_CONDITION) {
+ if (sc->ciss_periodic_notify != NULL)
+ ciss_release_request(sc->ciss_periodic_notify);
+ error = 0;
+ goto out;
+ }
+ /* FALLTHROUGH */
+
+ default:
+ ciss_printf(sc, "Abort Notify Event command failed (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+
+ /*
+ * Sleep waiting for the notifier command to complete. Note
+ * that if it doesn't, we may end up in a bad situation, since
+ * the adapter may deliver it later. Also note that the adapter
+ * requires the Notify Event command to be cancelled in order to
+ * maintain internal bookkeeping.
+ */
+ s = splcam();
+ while (sc->ciss_periodic_notify != NULL) {
+ error = tsleep(&sc->ciss_periodic_notify, 0, "cissNEA", hz * 5);
+ if (error == EWOULDBLOCK) {
+ ciss_printf(sc, "Notify Event command failed to abort, adapter may wedge.\n");
+ break;
+ }
+ }
+ splx(s);
+
+ out:
+ /* release the cancel request */
+ if (cr != NULL) {
+ if (cr->cr_data != NULL)
+ free(cr->cr_data, CISS_MALLOC_CLASS);
+ ciss_release_request(cr);
+ }
+ if (error == 0)
+ sc->ciss_flags &= ~CISS_FLAG_NOTIFY_OK;
+ return(error);
+}
+
+/************************************************************************
+ * Abort the Notify Event chain using a BMIC command.
+ */
+static int
+ciss_notify_abort_bmic(struct ciss_softc *sc)
+{
+ struct ciss_request *cr;
+ int error, command_status;
+
+ debug_called(1);
+
+ cr = NULL;
+ error = 0;
+
+ /* verify that there's an outstanding command */
+ if (!(sc->ciss_flags & CISS_FLAG_NOTIFY_OK))
+ goto out;
+
+ /*
+ * Build a BMIC command to cancel the Notify on Event command.
+ *
+ * Note that we are sending a CISS opcode here. Odd.
+ */
+ if ((error = ciss_get_bmic_request(sc, &cr, CISS_COMMAND_ABORT_NOTIFY,
+ NULL, 0)) != 0)
+ goto out;
+
+ /*
+ * Submit the request and wait for it to complete.
+ */
+ if ((error = ciss_synch_request(cr, 60 * 1000)) != 0) {
+ ciss_printf(sc, "error sending BMIC Cancel Notify on Event command (%d)\n", error);
+ goto out;
+ }
+
+ /*
+ * Check response.
+ */
+ ciss_report_request(cr, &command_status, NULL);
+ switch(command_status) {
+ case CISS_CMD_STATUS_SUCCESS:
+ break;
+ default:
+ ciss_printf(sc, "error cancelling Notify on Event (%s)\n",
+ ciss_name_command_status(command_status));
+ error = EIO;
+ goto out;
+ }
+
+out:
+ if (cr != NULL)
+ ciss_release_request(cr);
+ return(error);
+}
+
+/************************************************************************
+ * Handle a notify event relating to the status of a logical drive.
+ *
+ * XXX need to be able to defer some of these to properly handle
+ * calling the "ID Physical drive" command, unless the 'extended'
+ * drive IDs are always in BIG_MAP format.
+ */
+static void
+ciss_notify_logical(struct ciss_softc *sc, struct ciss_notify *cn)
+{
+ struct ciss_ldrive *ld;
+ int ostatus;
+
+ debug_called(2);
+
+ ld = &sc->ciss_logical[cn->data.logical_status.logical_drive];
+
+ switch (cn->subclass) {
+ case CISS_NOTIFY_LOGICAL_STATUS:
+ switch (cn->detail) {
+ case 0:
+ ciss_name_device(sc, cn->data.logical_status.logical_drive);
+ ciss_printf(sc, "logical drive %d (%s) changed status %s->%s, spare status 0x%b\n",
+ cn->data.logical_status.logical_drive, ld->cl_name,
+ ciss_name_ldrive_status(cn->data.logical_status.previous_state),
+ ciss_name_ldrive_status(cn->data.logical_status.new_state),
+ cn->data.logical_status.spare_state,
+ "\20\1configured\2rebuilding\3failed\4in use\5available\n");
+
+ /*
+ * Update our idea of the drive's status.
+ */
+ ostatus = ciss_decode_ldrive_status(cn->data.logical_status.previous_state);
+ ld->cl_status = ciss_decode_ldrive_status(cn->data.logical_status.new_state);
+ if (ld->cl_status != NULL)
+ ld->cl_lstatus->status = cn->data.logical_status.new_state;
+
+ break;
+
+ case 1: /* logical drive has recognised new media, needs Accept Media Exchange */
+ ciss_name_device(sc, cn->data.logical_status.logical_drive);
+ ciss_printf(sc, "logical drive %d (%s) media exchanged, ready to go online\n",
+ cn->data.logical_status.logical_drive, ld->cl_name);
+ ciss_accept_media(sc, cn->data.logical_status.logical_drive, 1);
+ break;
+
+ case 2:
+ case 3:
+ ciss_printf(sc, "rebuild of logical drive %d (%s) failed due to %s error\n",
+ cn->data.rebuild_aborted.logical_drive,
+ sc->ciss_logical[cn->data.rebuild_aborted.logical_drive].cl_name,
+ (cn->detail == 2) ? "read" : "write");
+ break;
+ }
+ break;
+
+ case CISS_NOTIFY_LOGICAL_ERROR:
+ if (cn->detail == 0) {
+ ciss_printf(sc, "FATAL I/O ERROR on logical drive %d (%s), SCSI port %d ID %d\n",
+ cn->data.io_error.logical_drive,
+ sc->ciss_logical[cn->data.io_error.logical_drive].cl_name,
+ cn->data.io_error.failure_bus,
+ cn->data.io_error.failure_drive);
+ /* XXX should we take the drive down at this point, or will we be told? */
+ }
+ break;
+
+ case CISS_NOTIFY_LOGICAL_SURFACE:
+ if (cn->detail == 0)
+ ciss_printf(sc, "logical drive %d (%s) completed consistency initialisation\n",
+ cn->data.consistency_completed.logical_drive,
+ sc->ciss_logical[cn->data.consistency_completed.logical_drive].cl_name);
+ break;
+ }
+}
+
+/************************************************************************
+ * Handle a notify event relating to the status of a physical drive.
+ */
+static void
+ciss_notify_physical(struct ciss_softc *sc, struct ciss_notify *cn)
+{
+
+}
+
+/************************************************************************
+ * Print a request.
+ */
+static void
+ciss_print_request(struct ciss_request *cr)
+{
+ struct ciss_softc *sc;
+ struct ciss_command *cc;
+ int i;
+
+ sc = cr->cr_sc;
+ cc = CISS_FIND_COMMAND(cr);
+
+ ciss_printf(sc, "REQUEST @ %p\n", cr);
+ ciss_printf(sc, " data %p/%d tag %d flags %b\n",
+ cr->cr_data, cr->cr_length, cr->cr_tag, cr->cr_flags,
+ "\20\1mapped\2sleep\3poll\4dataout\5datain\n");
+ ciss_printf(sc, " sg list/total %d/%d host tag 0x%x\n",
+ cc->header.sg_in_list, cc->header.sg_total, cc->header.host_tag);
+ switch(cc->header.address.mode.mode) {
+ case CISS_HDR_ADDRESS_MODE_PERIPHERAL:
+ case CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL:
+ ciss_printf(sc, " physical bus %d target %d\n",
+ cc->header.address.physical.bus, cc->header.address.physical.target);
+ break;
+ case CISS_HDR_ADDRESS_MODE_LOGICAL:
+ ciss_printf(sc, " logical unit %d\n", cc->header.address.logical.lun);
+ break;
+ }
+ ciss_printf(sc, " %s cdb length %d type %s attribute %s\n",
+ (cc->cdb.direction == CISS_CDB_DIRECTION_NONE) ? "no-I/O" :
+ (cc->cdb.direction == CISS_CDB_DIRECTION_READ) ? "READ" :
+ (cc->cdb.direction == CISS_CDB_DIRECTION_WRITE) ? "WRITE" : "??",
+ cc->cdb.cdb_length,
+ (cc->cdb.type == CISS_CDB_TYPE_COMMAND) ? "command" :
+ (cc->cdb.type == CISS_CDB_TYPE_MESSAGE) ? "message" : "??",
+ (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_UNTAGGED) ? "untagged" :
+ (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_SIMPLE) ? "simple" :
+ (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE) ? "head-of-queue" :
+ (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_ORDERED) ? "ordered" :
+ (cc->cdb.attribute == CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT) ? "auto-contingent" : "??");
+ ciss_printf(sc, " %*D\n", cc->cdb.cdb_length, &cc->cdb.cdb[0], " ");
+
+ if (cc->header.host_tag & CISS_HDR_HOST_TAG_ERROR) {
+ /* XXX print error info */
+ } else {
+ /* since we don't use chained s/g, don't support it here */
+ for (i = 0; i < cc->header.sg_in_list; i++) {
+ if ((i % 4) == 0)
+ ciss_printf(sc, " ");
+ printf("0x%08x/%d ", (u_int32_t)cc->sg[i].address, cc->sg[i].length);
+ if ((((i + 1) % 4) == 0) || (i == (cc->header.sg_in_list - 1)))
+ printf("\n");
+ }
+ }
+}
+
+/************************************************************************
+ * Print information about the status of a logical drive.
+ */
+static void
+ciss_print_ldrive(struct ciss_softc *sc, struct ciss_ldrive *ld)
+{
+ int bus, target, i;
+
+ /* print drive status */
+ switch(ld->cl_lstatus->status) {
+ case CISS_LSTATUS_OK:
+ printf("online\n");
+ break;
+ case CISS_LSTATUS_INTERIM_RECOVERY:
+ printf("in interim recovery mode\n");
+ break;
+ case CISS_LSTATUS_READY_RECOVERY:
+ printf("ready to begin recovery\n");
+ break;
+ case CISS_LSTATUS_RECOVERING:
+ bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
+ target = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_rebuilding);
+ printf("being recovered, working on physical drive %d.%d, %u blocks remaining\n",
+ bus, target, ld->cl_lstatus->blocks_to_recover);
+ break;
+ case CISS_LSTATUS_EXPANDING:
+ printf("being expanded, %u blocks remaining\n",
+ ld->cl_lstatus->blocks_to_recover);
+ break;
+ case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
+ printf("queued for expansion\n");
+ break;
+ case CISS_LSTATUS_FAILED:
+ printf("queued for expansion\n");
+ break;
+ case CISS_LSTATUS_WRONG_PDRIVE:
+ printf("wrong physical drive inserted\n");
+ break;
+ case CISS_LSTATUS_MISSING_PDRIVE:
+ printf("missing a needed physical drive\n");
+ break;
+ case CISS_LSTATUS_BECOMING_READY:
+ printf("becoming ready\n");
+ break;
+ }
+
+ /* print failed drives */
+ for (i = 0; i < CISS_BIG_MAP_ENTRIES / 8; i++) {
+ bus = CISS_BIG_MAP_BUS(sc, ld->cl_lstatus->drive_failure_map[i]);
+ target = CISS_BIG_MAP_TARGET(sc, ld->cl_lstatus->drive_failure_map[i]);
+ if (bus == -1)
+ continue;
+ ciss_printf(sc, "physical drive %d:%d (%x) failed\n", bus, target,
+ ld->cl_lstatus->drive_failure_map[i]);
+ }
+}
+
+/************************************************************************
+ * Return a name for a logical drive status value.
+ */
+static const char *
+ciss_name_ldrive_status(int status)
+{
+ switch (status) {
+ case CISS_LSTATUS_OK:
+ return("OK");
+ case CISS_LSTATUS_FAILED:
+ return("failed");
+ case CISS_LSTATUS_NOT_CONFIGURED:
+ return("not configured");
+ case CISS_LSTATUS_INTERIM_RECOVERY:
+ return("interim recovery");
+ case CISS_LSTATUS_READY_RECOVERY:
+ return("ready for recovery");
+ case CISS_LSTATUS_RECOVERING:
+ return("recovering");
+ case CISS_LSTATUS_WRONG_PDRIVE:
+ return("wrong physical drive inserted");
+ case CISS_LSTATUS_MISSING_PDRIVE:
+ return("missing physical drive");
+ case CISS_LSTATUS_EXPANDING:
+ return("expanding");
+ case CISS_LSTATUS_BECOMING_READY:
+ return("becoming ready");
+ case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
+ return("queued for expansion");
+ }
+ return("unknown status");
+}
+
+/************************************************************************
+ * Return an online/offline/nonexistent value for a logical drive
+ * status value.
+ */
+static int
+ciss_decode_ldrive_status(int status)
+{
+ switch(status) {
+ case CISS_LSTATUS_NOT_CONFIGURED:
+ return(CISS_LD_NONEXISTENT);
+
+ case CISS_LSTATUS_OK:
+ case CISS_LSTATUS_INTERIM_RECOVERY:
+ case CISS_LSTATUS_READY_RECOVERY:
+ case CISS_LSTATUS_RECOVERING:
+ case CISS_LSTATUS_EXPANDING:
+ case CISS_LSTATUS_QUEUED_FOR_EXPANSION:
+ return(CISS_LD_ONLINE);
+
+ case CISS_LSTATUS_FAILED:
+ case CISS_LSTATUS_WRONG_PDRIVE:
+ case CISS_LSTATUS_MISSING_PDRIVE:
+ case CISS_LSTATUS_BECOMING_READY:
+ default:
+ return(CISS_LD_OFFLINE);
+ }
+}
+
+
+/************************************************************************
+ * Return a name for a logical drive's organisation.
+ */
+static const char *
+ciss_name_ldrive_org(int org)
+{
+ switch(org) {
+ case CISS_LDRIVE_RAID0:
+ return("RAID 0");
+ case CISS_LDRIVE_RAID1:
+ return("RAID 1");
+ case CISS_LDRIVE_RAID4:
+ return("RAID 4");
+ case CISS_LDRIVE_RAID5:
+ return("RAID 5");
+ }
+ return("unkown");
+}
+
+/************************************************************************
+ * Return a name for a command status value.
+ */
+static const char *
+ciss_name_command_status(int status)
+{
+ switch(status) {
+ case CISS_CMD_STATUS_SUCCESS:
+ return("success");
+ case CISS_CMD_STATUS_TARGET_STATUS:
+ return("target status");
+ case CISS_CMD_STATUS_DATA_UNDERRUN:
+ return("data underrun");
+ case CISS_CMD_STATUS_DATA_OVERRUN:
+ return("data overrun");
+ case CISS_CMD_STATUS_INVALID_COMMAND:
+ return("invalid command");
+ case CISS_CMD_STATUS_PROTOCOL_ERROR:
+ return("protocol error");
+ case CISS_CMD_STATUS_HARDWARE_ERROR:
+ return("hardware error");
+ case CISS_CMD_STATUS_CONNECTION_LOST:
+ return("connection lost");
+ case CISS_CMD_STATUS_ABORTED:
+ return("aborted");
+ case CISS_CMD_STATUS_ABORT_FAILED:
+ return("abort failed");
+ case CISS_CMD_STATUS_UNSOLICITED_ABORT:
+ return("unsolicited abort");
+ case CISS_CMD_STATUS_TIMEOUT:
+ return("timeout");
+ case CISS_CMD_STATUS_UNABORTABLE:
+ return("unabortable");
+ }
+ return("unknown status");
+}
+
+/************************************************************************
+ * Handle an open on the control device.
+ */
+static int
+ciss_open(dev_t dev, int flags, int fmt, d_thread_t *p)
+{
+ struct ciss_softc *sc;
+
+ debug_called(1);
+
+ sc = (struct ciss_softc *)dev->si_drv1;
+
+ /* we might want to veto if someone already has us open */
+
+ sc->ciss_flags |= CISS_FLAG_CONTROL_OPEN;
+ return(0);
+}
+
+/************************************************************************
+ * Handle the last close on the control device.
+ */
+static int
+ciss_close(dev_t dev, int flags, int fmt, d_thread_t *p)
+{
+ struct ciss_softc *sc;
+
+ debug_called(1);
+
+ sc = (struct ciss_softc *)dev->si_drv1;
+
+ sc->ciss_flags &= ~CISS_FLAG_CONTROL_OPEN;
+ return (0);
+}
+
+/********************************************************************************
+ * Handle adapter-specific control operations.
+ *
+ * Note that the API here is compatible with the Linux driver, in order to
+ * simplify the porting of Compaq's userland tools.
+ */
+static int
+ciss_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *p)
+{
+ struct ciss_softc *sc;
+ int error;
+
+ debug_called(1);
+
+ sc = (struct ciss_softc *)dev->si_drv1;
+ error = 0;
+
+ switch(cmd) {
+ case CCISS_GETPCIINFO:
+ {
+ cciss_pci_info_struct *pis = (cciss_pci_info_struct *)addr;
+
+ pis->bus = pci_get_bus(sc->ciss_dev);
+ pis->dev_fn = pci_get_slot(sc->ciss_dev);
+ pis->board_id = pci_get_devid(sc->ciss_dev);
+
+ break;
+ }
+
+ case CCISS_GETINTINFO:
+ {
+ cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
+
+ cis->delay = sc->ciss_cfg->interrupt_coalesce_delay;
+ cis->count = sc->ciss_cfg->interrupt_coalesce_count;
+
+ break;
+ }
+
+ case CCISS_SETINTINFO:
+ {
+ cciss_coalint_struct *cis = (cciss_coalint_struct *)addr;
+
+ if ((cis->delay == 0) && (cis->count == 0)) {
+ error = EINVAL;
+ break;
+ }
+
+ /*
+ * XXX apparently this is only safe if the controller is idle,
+ * we should suspend it before doing this.
+ */
+ sc->ciss_cfg->interrupt_coalesce_delay = cis->delay;
+ sc->ciss_cfg->interrupt_coalesce_count = cis->count;
+
+ if (ciss_update_config(sc))
+ error = EIO;
+
+ /* XXX resume the controller here */
+ break;
+ }
+
+ case CCISS_GETNODENAME:
+ bcopy(sc->ciss_cfg->server_name, (NodeName_type *)addr,
+ sizeof(NodeName_type));
+ break;
+
+ case CCISS_SETNODENAME:
+ bcopy((NodeName_type *)addr, sc->ciss_cfg->server_name,
+ sizeof(NodeName_type));
+ if (ciss_update_config(sc))
+ error = EIO;
+ break;
+
+ case CCISS_GETHEARTBEAT:
+ *(Heartbeat_type *)addr = sc->ciss_cfg->heartbeat;
+ break;
+
+ case CCISS_GETBUSTYPES:
+ *(BusTypes_type *)addr = sc->ciss_cfg->bus_types;
+ break;
+
+ case CCISS_GETFIRMVER:
+ bcopy(sc->ciss_id->running_firmware_revision, (FirmwareVer_type *)addr,
+ sizeof(FirmwareVer_type));
+ break;
+
+ case CCISS_GETDRIVERVER:
+ *(DriverVer_type *)addr = CISS_DRIVER_VERSION;
+ break;
+
+ case CCISS_REVALIDVOLS:
+ /*
+ * This is a bit ugly; to do it "right" we really need
+ * to find any disks that have changed, kick CAM off them,
+ * then rescan only these disks. It'd be nice if they
+ * a) told us which disk(s) they were going to play with,
+ * and b) which ones had arrived. 8(
+ */
+ break;
+
+ case CCISS_PASSTHRU:
+ error = ciss_user_command(sc, (IOCTL_Command_struct *)addr);
+ break;
+
+ default:
+ debug(0, "unknown ioctl 0x%lx", cmd);
+
+ debug(1, "CCISS_GETPCIINFO: 0x%lx", CCISS_GETPCIINFO);
+ debug(1, "CCISS_GETINTINFO: 0x%lx", CCISS_GETINTINFO);
+ debug(1, "CCISS_SETINTINFO: 0x%lx", CCISS_SETINTINFO);
+ debug(1, "CCISS_GETNODENAME: 0x%lx", CCISS_GETNODENAME);
+ debug(1, "CCISS_SETNODENAME: 0x%lx", CCISS_SETNODENAME);
+ debug(1, "CCISS_GETHEARTBEAT: 0x%lx", CCISS_GETHEARTBEAT);
+ debug(1, "CCISS_GETBUSTYPES: 0x%lx", CCISS_GETBUSTYPES);
+ debug(1, "CCISS_GETFIRMVER: 0x%lx", CCISS_GETFIRMVER);
+ debug(1, "CCISS_GETDRIVERVER: 0x%lx", CCISS_GETDRIVERVER);
+ debug(1, "CCISS_REVALIDVOLS: 0x%lx", CCISS_REVALIDVOLS);
+ debug(1, "CCISS_PASSTHRU: 0x%lx", CCISS_PASSTHRU);
+
+ error = ENOIOCTL;
+ break;
+ }
+
+ return(error);
+}