patch-2.2.13 linux/drivers/scsi/ips.c
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- Lines: 3941
- Date:
Tue Oct 19 17:14:01 1999
- Orig file:
v2.2.12/linux/drivers/scsi/ips.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.2.12/linux/drivers/scsi/ips.c linux/drivers/scsi/ips.c
@@ -0,0 +1,3940 @@
+/*****************************************************************************/
+/* ips.c -- driver for the IBM ServeRAID controller */
+/* */
+/* Written By: Keith Mitchell, IBM Corporation */
+/* */
+/* Copyright (C) 1999 IBM Corporation */
+/* */
+/* This program is free software; you can redistribute it and/or modify */
+/* it under the terms of the GNU General Public License as published by */
+/* the Free Software Foundation; either version 2 of the License, or */
+/* (at your option) any later version. */
+/* */
+/* This program is distributed in the hope that it will be useful, */
+/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
+/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
+/* GNU General Public License for more details. */
+/* */
+/* NO WARRANTY */
+/* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR */
+/* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT */
+/* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, */
+/* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is */
+/* solely responsible for determining the appropriateness of using and */
+/* distributing the Program and assumes all risks associated with its */
+/* exercise of rights under this Agreement, including but not limited to */
+/* the risks and costs of program errors, damage to or loss of data, */
+/* programs or equipment, and unavailability or interruption of operations. */
+/* */
+/* DISCLAIMER OF LIABILITY */
+/* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY */
+/* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL */
+/* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), 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 OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED */
+/* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES */
+/* */
+/* You should have received a copy of the GNU General Public License */
+/* along with this program; if not, write to the Free Software */
+/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+/* */
+/* Bugs/Comments/Suggestions should be mailed to: */
+/* ipslinux@us.ibm.com */
+/* */
+/*****************************************************************************/
+
+/*****************************************************************************/
+/* Change Log */
+/* */
+/* 0.99.02 - Breakup commands that are bigger than 8 * the stripe size */
+/* 0.99.03 - Make interrupt routine handle all completed request on the */
+/* adapter not just the first one */
+/* - Make sure passthru commands get woken up if we run out of */
+/* SCBs */
+/* - Send all of the commands on the queue at once rather than */
+/* one at a time since the card will support it. */
+/* 0.99.04 - Fix race condition in the passthru mechanism -- this required */
+/* the interface to the utilities to change */
+/* - Fix error recovery code */
+/* 0.99.05 - Fix an oops when we get certain passthru commands */
+/* 1.00.00 - Initial Public Release */
+/* Functionally equivalent to 0.99.05 */
+/* */
+/*****************************************************************************/
+
+/*
+ * Conditional Compilation directives for this driver:
+ *
+ * NO_IPS_RESET - Don't reset the controller (no matter what)
+ * IPS_DEBUG - More verbose error messages
+ * IPS_PCI_PROBE_DEBUG - Print out more detail on the PCI probe
+ *
+ */
+
+#if defined (MODULE)
+ #include <linux/module.h>
+#endif /* MODULE */
+
+#include <asm/io.h>
+#include <asm/byteorder.h>
+#include <linux/stddef.h>
+#include <linux/version.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/malloc.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+
+#include <linux/blk.h>
+#include <linux/types.h>
+
+#ifndef NO_IPS_CMDLINE
+#include <scsi/sg.h>
+#endif
+
+#include "sd.h"
+#include "scsi.h"
+#include "hosts.h"
+#include "ips.h"
+
+#include <linux/stat.h>
+#include <linux/malloc.h>
+#include <linux/config.h>
+#include <asm/spinlock.h>
+#include <linux/smp.h>
+
+/*
+ * DRIVER_VER
+ */
+#define IPS_VERSION_HIGH "1.00" /* MUST be 4 chars */
+#define IPS_VERSION_LOW ".00 " /* MUST be 4 chars */
+
+struct proc_dir_entry proc_scsi_ips = {
+#if !defined(PROC_SCSI_IPS)
+ 0, /* Use dynamic inode allocation */
+#else
+ PROC_SCSI_IPS,
+#endif
+ 3, "ips",
+ S_IFDIR | S_IRUGO | S_IXUGO, 2
+};
+
+#if LINUX_VERSION_CODE < LinuxVersionCode(2,1,93)
+ #include <linux/bios32.h>
+#endif
+
+#if !defined(__i386__)
+ #error "This driver has only been tested on the x86 platform"
+#endif
+
+#if LINUX_VERSION_CODE < LinuxVersionCode(2,2,0)
+ #error "This driver only works with kernel 2.2.0 and later"
+#endif
+
+#if !defined(NO_IPS_CMDLINE) && ((SG_BIG_BUFF < 8192) || !defined(SG_BIG_BUFF))
+ #error "To use the command-line interface you need to define SG_BIG_BUFF"
+#endif
+
+#if IPS_DEBUG >= 12
+ #define DBG(s) printk(KERN_NOTICE s "\n"); MDELAY(2*ONE_SEC)
+#elif IPS_DEBUG >= 11
+ #define DBG(s) printk(KERN_NOTICE s "\n")
+#else
+ #define DBG(s)
+#endif
+
+/*
+ * global variables
+ */
+static const char * ips_name = "ips";
+static struct Scsi_Host * ips_sh[IPS_MAX_ADAPTERS]; /* Array of host controller structures */
+static ips_ha_t * ips_ha[IPS_MAX_ADAPTERS]; /* Array of HA structures */
+static unsigned int ips_num_controllers = 0;
+static int ips_cmd_timeout = 60;
+static int ips_reset_timeout = 60 * 5;
+
+#define MAX_ADAPTER_NAME 6
+
+static char ips_adapter_name[][30] = {
+ "ServeRAID",
+ "ServeRAID II",
+ "ServeRAID on motherboard",
+ "ServeRAID on motherboard",
+ "ServeRAID 3H",
+ "ServeRAID 3L"
+};
+
+/*
+ * Function prototypes
+ */
+int ips_detect(Scsi_Host_Template *);
+int ips_release(struct Scsi_Host *);
+int ips_abort(Scsi_Cmnd *);
+int ips_reset(Scsi_Cmnd *, unsigned int);
+int ips_eh_abort(Scsi_Cmnd *);
+int ips_eh_reset(Scsi_Cmnd *);
+int ips_queue(Scsi_Cmnd *, void (*) (Scsi_Cmnd *));
+int ips_biosparam(Disk *, kdev_t, int *);
+const char * ips_info(struct Scsi_Host *);
+void do_ipsintr(int, void *, struct pt_regs *);
+static int ips_hainit(ips_ha_t *);
+static int ips_map_status(ips_scb_t *, ips_stat_t *);
+static int ips_send(ips_ha_t *, ips_scb_t *, scb_callback);
+static int ips_send_wait(ips_ha_t *, ips_scb_t *, int);
+static int ips_send_cmd(ips_ha_t *, ips_scb_t *);
+static int ips_chkstatus(ips_ha_t *);
+static int ips_online(ips_ha_t *, ips_scb_t *);
+static int ips_inquiry(ips_ha_t *, ips_scb_t *);
+static int ips_rdcap(ips_ha_t *, ips_scb_t *);
+static int ips_msense(ips_ha_t *, ips_scb_t *);
+static int ips_reqsen(ips_ha_t *, ips_scb_t *);
+static int ips_allocatescbs(ips_ha_t *);
+static int ips_reset_adapter(ips_ha_t *);
+static int ips_statupd(ips_ha_t *);
+static int ips_issue(ips_ha_t *, ips_scb_t *);
+static int ips_isintr(ips_ha_t *);
+static int ips_wait(ips_ha_t *, int, int);
+static int ips_write_driver_status(ips_ha_t *);
+static int ips_read_adapter_status(ips_ha_t *);
+static int ips_read_subsystem_parameters(ips_ha_t *);
+static int ips_read_config(ips_ha_t *);
+static int ips_clear_adapter(ips_ha_t *);
+static int ips_readwrite_page5(ips_ha_t *, int);
+static void ips_intr(ips_ha_t *);
+static void ips_next(ips_ha_t *);
+static void ipsintr_blocking(ips_ha_t *, struct ips_scb *);
+static void ipsintr_done(ips_ha_t *, struct ips_scb *);
+static void ips_done(ips_ha_t *, ips_scb_t *);
+static void ips_free(ips_ha_t *);
+static void ips_init_scb(ips_ha_t *, ips_scb_t *);
+static void ips_freescb(ips_ha_t *, ips_scb_t *);
+static void ips_statinit(ips_ha_t *);
+static ips_scb_t * ips_getscb(ips_ha_t *);
+static inline void ips_putq_scb_head(ips_scb_queue_t *, ips_scb_t *);
+static inline void ips_putq_scb_tail(ips_scb_queue_t *, ips_scb_t *);
+static inline ips_scb_t * ips_removeq_scb_head(ips_scb_queue_t *);
+static inline ips_scb_t * ips_removeq_scb(ips_scb_queue_t *, ips_scb_t *);
+static inline void ips_putq_wait_head(ips_wait_queue_t *, Scsi_Cmnd *);
+static inline void ips_putq_wait_tail(ips_wait_queue_t *, Scsi_Cmnd *);
+static inline Scsi_Cmnd * ips_removeq_wait_head(ips_wait_queue_t *);
+static inline Scsi_Cmnd * ips_removeq_wait(ips_wait_queue_t *, Scsi_Cmnd *);
+
+#ifndef NO_IPS_CMDLINE
+static int ips_is_passthru(Scsi_Cmnd *);
+static int ips_make_passthru(ips_ha_t *, Scsi_Cmnd *, ips_scb_t *);
+static int ips_usrcmd(ips_ha_t *, ips_passthru_t *, ips_scb_t *);
+#endif
+
+int ips_proc_info(char *, char **, off_t, int, int, int);
+static int ips_host_info(ips_ha_t *, char *, off_t, int);
+static void copy_mem_info(INFOSTR *, char *, int);
+static int copy_info(INFOSTR *, char *, ...);
+
+/*--------------------------------------------------------------------------*/
+/* Exported Functions */
+/*--------------------------------------------------------------------------*/
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_detect */
+/* */
+/* Routine Description: */
+/* */
+/* Detect and initialize the driver */
+/* */
+/****************************************************************************/
+int
+ips_detect(Scsi_Host_Template *SHT) {
+ struct Scsi_Host *sh;
+ ips_ha_t *ha;
+ u32 io_addr;
+ u16 planer;
+ u8 bus;
+ u8 func;
+ u8 irq;
+ int index;
+ struct pci_dev *dev = NULL;
+
+ DBG("ips_detect");
+
+ SHT->proc_info = ips_proc_info;
+ SHT->proc_dir = &proc_scsi_ips;
+
+#if defined(CONFIG_PCI)
+
+ /* initalize number of controllers */
+ ips_num_controllers = 0;
+
+ if (!pci_present())
+ return (0);
+
+ for (index = 0; index < IPS_MAX_ADAPTERS; index++) {
+
+ if (!(dev = pci_find_device(IPS_VENDORID, IPS_DEVICEID, dev)))
+ break;
+
+ /* stuff that we get in dev */
+ irq = dev->irq;
+ bus = dev->bus->number;
+ func = dev->devfn;
+ io_addr = dev->base_address[0];
+
+ /* get planer status */
+ if (pci_read_config_word(dev, 0x04, &planer)) {
+ printk(KERN_WARNING "(%s%d) can't get planer status.\n",
+ ips_name, index);
+
+ continue;
+ }
+
+ /* check I/O address */
+ if ((io_addr & PCI_BASE_ADDRESS_SPACE) != PCI_BASE_ADDRESS_SPACE_IO)
+ continue;
+
+ /* check to see if an onboard planer controller is disabled */
+ if (!(planer & 0x000C)) {
+
+ #ifdef IPS_PCI_PROBE_DEBUG
+ printk(KERN_NOTICE "(%s%d) detect, Onboard ServeRAID disabled by BIOS\n",
+ ips_name, index);
+ #endif
+
+ continue;
+ }
+
+ /* get the BASE IO Address */
+ io_addr &= PCI_BASE_ADDRESS_IO_MASK;
+
+ #ifdef IPS_PCI_PROBE_DEBUG
+ printk(KERN_NOTICE "(%s%d) detect bus %d, func %x, irq %d, io %x\n",
+ ips_name, index, bus, func, irq, io_addr);
+ #endif
+
+ /* found a controller */
+ sh = scsi_register(SHT, sizeof(ips_ha_t));
+
+ if (sh == NULL) {
+ printk(KERN_WARNING "(%s%d) Unable to register controller with SCSI subsystem - skipping controller\n",
+ ips_name, index);
+
+ continue;
+ }
+
+ ha = HA(sh);
+ memset(ha, 0, sizeof(ips_ha_t));
+
+ /* Initialize spin lock */
+ spin_lock_init(&ha->scb_lock);
+ spin_lock_init(&ha->copp_lock);
+
+ ips_sh[ips_num_controllers] = sh;
+ ips_ha[ips_num_controllers] = ha;
+ ips_num_controllers++;
+ ha->active = 1;
+
+ ha->enq = kmalloc(sizeof(ENQCMD), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->enq) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host inquiry structure - skipping contoller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->adapt = kmalloc(sizeof(ADAPTER_AREA), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->adapt) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host adapt structure - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->conf = kmalloc(sizeof(CONFCMD), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->conf) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host conf structure - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->nvram = kmalloc(sizeof(NVRAM_PAGE5), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->nvram) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host nvram structure - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->subsys = kmalloc(sizeof(SUBSYS_PARAM), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->subsys) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host subsystem structure - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->dummy = kmalloc(sizeof(BASIC_IO_CMD), GFP_KERNEL|GFP_DMA);
+
+ if (!ha->dummy) {
+ printk(KERN_WARNING "(%s%d) Unable to allocate host dummy structure - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ /* Store away needed values for later use */
+ sh->io_port = io_addr;
+ sh->n_io_port = 255;
+ sh->unique_id = io_addr;
+ sh->irq = irq;
+ sh->select_queue_depths = NULL;
+ sh->sg_tablesize = sh->hostt->sg_tablesize;
+ sh->can_queue = sh->hostt->can_queue;
+ sh->cmd_per_lun = sh->hostt->cmd_per_lun;
+ sh->unchecked_isa_dma = sh->hostt->unchecked_isa_dma;
+ sh->use_clustering = sh->hostt->use_clustering;
+ sh->wish_block = FALSE;
+
+ /* Store info in HA structure */
+ ha->io_addr = io_addr;
+ ha->irq = irq;
+ ha->host_num = index;
+
+ /* install the interrupt handler */
+ if (request_irq(irq, do_ipsintr, SA_SHIRQ, ips_name, ha)) {
+ printk(KERN_WARNING "(%s%d) unable to install interrupt handler - skipping controller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ /*
+ * Allocate a temporary SCB for initialization
+ */
+ ha->scbs = (ips_scb_t *) kmalloc(sizeof(ips_scb_t), GFP_KERNEL|GFP_DMA);
+ if (!ha->scbs) {
+ /* couldn't allocate a temp SCB */
+ printk(KERN_WARNING "(%s%d) unable to allocate CCBs - skipping contoller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ memset(ha->scbs, 0, sizeof(ips_scb_t));
+ ha->scbs->sg_list = (SG_LIST *) kmalloc(sizeof(SG_LIST) * MAX_SG_ELEMENTS, GFP_KERNEL|GFP_DMA);
+ if (!ha->scbs->sg_list) {
+ /* couldn't allocate a temp SCB S/G list */
+ printk(KERN_WARNING "(%s%d) unable to allocate CCBs - skipping contoller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ ha->max_cmds = 1;
+
+ if (!ips_hainit(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to initialize controller - skipping\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ /*
+ * Free the temporary SCB
+ */
+ kfree(ha->scbs->sg_list);
+ kfree(ha->scbs);
+ ha->scbs = NULL;
+
+ /* allocate CCBs */
+ if (!ips_allocatescbs(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to allocate CCBs - skipping contoller\n",
+ ips_name, index);
+
+ ha->active = 0;
+
+ continue;
+ }
+
+ /* finish setting values */
+ sh->max_id = ha->ntargets;
+ sh->max_lun = ha->nlun;
+ sh->max_channel = ha->nbus;
+ sh->can_queue = ha->max_cmds-1;
+ } /* end for */
+
+ return (ips_num_controllers);
+
+#else
+
+ /* No PCI -- No ServeRAID */
+ return (0);
+#endif /* CONFIG_PCI */
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_release */
+/* */
+/* Routine Description: */
+/* */
+/* Remove a driver */
+/* */
+/****************************************************************************/
+int
+ips_release(struct Scsi_Host *sh) {
+ ips_scb_t *scb;
+ ips_ha_t *ha;
+ int i;
+
+ DBG("ips_release");
+
+ for (i = 0; i < IPS_MAX_ADAPTERS && ips_sh[i] != sh; i++);
+
+ if (i == IPS_MAX_ADAPTERS)
+ panic("(%s) release, invalid Scsi_Host pointer.\n",
+ ips_name);
+
+ ha = HA(sh);
+
+ if (!ha)
+ return (FALSE);
+
+ /* flush the cache on the controller */
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_cmd_timeout;
+ scb->cdb[0] = FLUSH_CACHE;
+
+ scb->cmd.flush_cache.op_code = FLUSH_CACHE;
+ scb->cmd.flush_cache.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.flush_cache.state = NORM_STATE;
+ scb->cmd.flush_cache.reserved = 0;
+ scb->cmd.flush_cache.reserved2 = 0;
+ scb->cmd.flush_cache.reserved3 = 0;
+ scb->cmd.flush_cache.reserved4 = 0;
+
+ printk("(%s%d) Flushing Cache.\n", ips_name, ha->host_num);
+
+ /* send command */
+ if (ips_send_wait(ha, scb, ips_cmd_timeout) == IPS_FAILURE)
+ printk("(%s%d) Incomplete Flush.\n", ips_name, ha->host_num);
+
+ printk("(%s%d) Flushing Complete.\n", ips_name, ha->host_num);
+
+ ips_sh[i] = NULL;
+ ips_ha[i] = NULL;
+
+ /* free extra memory */
+ ips_free(ha);
+
+ /* free IRQ */
+ free_irq(ha->irq, ha);
+
+ /* unregister with SCSI sub system */
+ scsi_unregister(sh);
+
+ return (FALSE);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_eh_abort */
+/* */
+/* Routine Description: */
+/* */
+/* Abort a command (using the new error code stuff) */
+/* */
+/****************************************************************************/
+int
+ips_eh_abort(Scsi_Cmnd *SC) {
+ ips_ha_t *ha;
+
+ DBG("ips_eh_abort");
+
+ if (!SC)
+ return (FAILED);
+
+ ha = (ips_ha_t *) SC->host->hostdata;
+
+ if (!ha)
+ return (FAILED);
+
+ if (!ha->active)
+ return (FAILED);
+
+ if (SC->serial_number != SC->serial_number_at_timeout) {
+ /* HMM, looks like a bogus command */
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Abort called with bogus scsi command\n");
+#endif
+
+ return (FAILED);
+ }
+
+ if (test_and_set_bit(IPS_IN_ABORT, &ha->flags))
+ return (FAILED);
+
+ /* See if the command is on the wait queue */
+ if (ips_removeq_wait(&ha->scb_waitlist, SC) ||
+ ips_removeq_wait(&ha->copp_waitlist, SC)) {
+ /* command not sent yet */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (SUCCESS);
+ } else {
+ /* command must have already been sent */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (FAILED);
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_abort */
+/* */
+/* Routine Description: */
+/* */
+/* Abort a command */
+/* */
+/****************************************************************************/
+int
+ips_abort(Scsi_Cmnd *SC) {
+ ips_ha_t *ha;
+
+ DBG("ips_abort");
+
+ if (!SC)
+ return (SCSI_ABORT_SNOOZE);
+
+ ha = (ips_ha_t *) SC->host->hostdata;
+
+ if (!ha)
+ return (SCSI_ABORT_SNOOZE);
+
+ if (!ha->active)
+ return (SCSI_ABORT_SNOOZE);
+
+ if (SC->serial_number != SC->serial_number_at_timeout) {
+ /* HMM, looks like a bogus command */
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Abort called with bogus scsi command\n");
+#endif
+
+ return (SCSI_ABORT_NOT_RUNNING);
+ }
+
+ if (test_and_set_bit(IPS_IN_ABORT, &ha->flags))
+ return (SCSI_ABORT_SNOOZE);
+
+ /* See if the command is on the wait queue */
+ if (ips_removeq_wait(&ha->scb_waitlist, SC) ||
+ ips_removeq_wait(&ha->copp_waitlist, SC)) {
+ /* command not sent yet */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (SCSI_ABORT_PENDING);
+ } else {
+ /* command must have already been sent */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (SCSI_ABORT_SNOOZE);
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_eh_reset */
+/* */
+/* Routine Description: */
+/* */
+/* Reset the controller (with new eh error code) */
+/* */
+/****************************************************************************/
+int
+ips_eh_reset(Scsi_Cmnd *SC) {
+ ips_ha_t *ha;
+ ips_scb_t *scb;
+
+ DBG("ips_eh_reset");
+
+#ifdef NO_IPS_RESET
+ return (FAILED);
+#else
+
+ if (!SC) {
+
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Reset called with NULL scsi command\n");
+#endif
+
+ return (FAILED);
+ }
+
+ ha = (ips_ha_t *) SC->host->hostdata;
+
+ if (!ha) {
+
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Reset called with NULL ha struct\n");
+#endif
+
+ return (FAILED);
+ }
+
+ if (!ha->active)
+ return (FAILED);
+
+ if (test_and_set_bit(IPS_IN_RESET, &ha->flags))
+ return (FAILED);
+
+ /* See if the command is on the waiting queue */
+ if (ips_removeq_wait(&ha->scb_waitlist, SC) ||
+ ips_removeq_wait(&ha->copp_waitlist, SC)) {
+ /* command not sent yet */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (SUCCESS);
+ }
+
+ /*
+ * command must have already been sent
+ * reset the controller
+ */
+ if (!ips_reset_adapter(ha)) {
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ return (FAILED);
+ }
+
+ if (!ips_clear_adapter(ha)) {
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ return (FAILED);
+ }
+
+ /* Now fail all of the active commands */
+#if IPS_DEBUG >= 1
+ printk(KERN_WARNING "(%s%d) Failing active commands\n",
+ ips_name, ha->host_num);
+#endif
+ while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
+ scb->scsi_cmd->result = DID_RESET << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+ }
+
+ /* Reset the number of active IOCTLs */
+ ha->num_ioctl = 0;
+
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ if (!test_bit(IPS_IN_INTR, &ha->flags)) {
+ /*
+ * Only execute the next command when
+ * we are not being called from the
+ * interrupt handler. The interrupt
+ * handler wants to do this and since
+ * interrupts are turned off here....
+ */
+ ips_next(ha);
+ }
+
+ return (SUCCESS);
+
+#endif /* NO_IPS_RESET */
+
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_reset */
+/* */
+/* Routine Description: */
+/* */
+/* Reset the controller */
+/* */
+/****************************************************************************/
+int
+ips_reset(Scsi_Cmnd *SC, unsigned int flags) {
+ ips_ha_t *ha;
+ ips_scb_t *scb;
+
+ DBG("ips_reset");
+
+#ifdef NO_IPS_RESET
+ return (SCSI_RESET_SNOOZE);
+#else
+
+ if (!SC) {
+
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Reset called with NULL scsi command\n");
+#endif
+
+ return (SCSI_RESET_SNOOZE);
+ }
+
+ ha = (ips_ha_t *) SC->host->hostdata;
+
+ if (!ha) {
+
+#if IPS_DEBUG >= 1
+ printk(KERN_NOTICE "Reset called with NULL ha struct\n");
+#endif
+
+ return (SCSI_RESET_SNOOZE);
+ }
+
+ if (!ha->active)
+ return (SCSI_RESET_SNOOZE);
+
+ if (test_and_set_bit(IPS_IN_RESET, &ha->flags))
+ return (SCSI_RESET_SNOOZE);
+
+ /* See if the command is on the waiting queue */
+ if (ips_removeq_wait(&ha->scb_waitlist, SC) ||
+ ips_removeq_wait(&ha->copp_waitlist, SC)) {
+ /* command not sent yet */
+ clear_bit(IPS_IN_ABORT, &ha->flags);
+
+ return (SCSI_RESET_SNOOZE);
+ }
+
+ /* reset the controller */
+ if (!ips_reset_adapter(ha)) {
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ return (SCSI_RESET_ERROR);
+ }
+
+ if (!ips_clear_adapter(ha)) {
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ return (SCSI_RESET_ERROR);
+ }
+
+ /* Now fail all of the active commands */
+#if IPS_DEBUG >= 1
+ printk(KERN_WARNING "(%s%d) Failing active commands\n",
+ ips_name, ha->host_num);
+#endif
+ while ((scb = ips_removeq_scb_head(&ha->scb_activelist))) {
+ scb->scsi_cmd->result = DID_RESET << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+ }
+
+ /* Reset the number of active IOCTLs */
+ ha->num_ioctl = 0;
+
+ clear_bit(IPS_IN_RESET, &ha->flags);
+
+ if (!test_bit(IPS_IN_INTR, &ha->flags)) {
+ /*
+ * Only execute the next command when
+ * we are not being called from the
+ * interrupt handler. The interrupt
+ * handler wants to do this and since
+ * interrupts are turned off here....
+ */
+ ips_next(ha);
+ }
+
+ return (SCSI_RESET_SUCCESS);
+
+#endif /* NO_IPS_RESET */
+
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_queue */
+/* */
+/* Routine Description: */
+/* */
+/* Send a command to the controller */
+/* */
+/****************************************************************************/
+int
+ips_queue(Scsi_Cmnd *SC, void (*done) (Scsi_Cmnd *)) {
+ ips_ha_t *ha;
+
+ DBG("ips_queue");
+
+ ha = (ips_ha_t *) SC->host->hostdata;
+
+ if (!ha)
+ return (1);
+
+ if (!ha->active)
+ return (1);
+
+#ifndef NO_IPS_CMDLINE
+ if (ips_is_passthru(SC)) {
+ if (ha->copp_waitlist.count == IPS_MAX_IOCTL_QUEUE) {
+ SC->result = DID_BUS_BUSY << 16;
+ done(SC);
+
+ return (0);
+ }
+ } else {
+#endif
+ if (ha->scb_waitlist.count == IPS_MAX_QUEUE) {
+ SC->result = DID_BUS_BUSY << 16;
+ done(SC);
+
+ return (0);
+ }
+
+#ifndef NO_IPS_CMDLINE
+ }
+#endif
+
+ SC->scsi_done = done;
+
+#if IPS_DEBUG >= 10
+ printk(KERN_NOTICE "%s: ips_queue: cmd 0x%X (%d %d %d)\n",
+ ips_name,
+ SC->cmnd[0],
+ SC->channel,
+ SC->target,
+ SC->lun);
+#if IPS_DEBUG >= 11
+ MDELAY(2*ONE_SEC);
+#endif
+#endif
+
+#ifndef NO_IPS_CMDLINE
+ if (ips_is_passthru(SC))
+ ips_putq_wait_tail(&ha->copp_waitlist, SC);
+ else
+#endif
+ ips_putq_wait_tail(&ha->scb_waitlist, SC);
+
+ if ((!test_bit(IPS_IN_INTR, &ha->flags)) &&
+ (!test_bit(IPS_IN_ABORT, &ha->flags)) &&
+ (!test_bit(IPS_IN_RESET, &ha->flags)))
+ ips_next(ha);
+
+ return (0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_biosparam */
+/* */
+/* Routine Description: */
+/* */
+/* Set bios geometry for the controller */
+/* */
+/****************************************************************************/
+int
+ips_biosparam(Disk *disk, kdev_t dev, int geom[]) {
+ ips_ha_t *ha;
+ int heads;
+ int sectors;
+ int cylinders;
+
+ DBG("ips_biosparam");
+
+ ha = (ips_ha_t *) disk->device->host->hostdata;
+
+ if (!ha)
+ /* ?!?! host adater info invalid */
+ return (0);
+
+ if (!ha->active)
+ return (0);
+
+ if (!ips_read_adapter_status(ha))
+ /* ?!?! Enquiry command failed */
+ return (0);
+
+ if ((disk->capacity > 0x400000) &&
+ ((ha->enq->ucMiscFlag & 0x8) == 0)) {
+ heads = NORM_MODE_HEADS;
+ sectors = NORM_MODE_SECTORS;
+ } else {
+ heads = COMP_MODE_HEADS;
+ sectors = COMP_MODE_SECTORS;
+ }
+
+ cylinders = disk->capacity / (heads * sectors);
+
+#if IPS_DEBUG >= 2
+ printk(KERN_NOTICE "Geometry: heads: %d, sectors: %d, cylinders: %d\n",
+ heads, sectors, cylinders);
+#endif
+
+ geom[0] = heads;
+ geom[1] = sectors;
+ geom[2] = cylinders;
+
+ return (0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: do_ipsintr */
+/* */
+/* Routine Description: */
+/* */
+/* Wrapper for the interrupt handler */
+/* */
+/****************************************************************************/
+void
+do_ipsintr(int irq, void *dev_id, struct pt_regs *regs) {
+ ips_ha_t *ha;
+ unsigned int cpu_flags;
+
+ DBG("do_ipsintr");
+
+ ha = (ips_ha_t *) dev_id;
+
+ spin_lock_irqsave(&io_request_lock, cpu_flags);
+
+ if (test_and_set_bit(IPS_IN_INTR, &ha->flags)) {
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
+
+ return ;
+ }
+
+ if (!ha) {
+ clear_bit(IPS_IN_INTR, &ha->flags);
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
+
+ return;
+ }
+
+ if (!ha->active) {
+ clear_bit(IPS_IN_INTR, &ha->flags);
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
+
+ return;
+ }
+
+ ips_intr(ha);
+
+ clear_bit(IPS_IN_INTR, &ha->flags);
+
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_intr */
+/* */
+/* Routine Description: */
+/* */
+/* Polling interrupt handler */
+/* */
+/* ASSUMES interrupts are disabled */
+/* */
+/****************************************************************************/
+void
+ips_intr(ips_ha_t *ha) {
+ ips_stat_t *sp;
+ ips_scb_t *scb;
+ int status;
+
+ DBG("ips_intr");
+
+ if (!ha)
+ return;
+
+ if (!ha->active)
+ return;
+
+ while (ips_isintr(ha)) {
+ sp = &ha->sp;
+
+ if ((status = ips_chkstatus(ha)) < 0) {
+ /* unexpected interrupt - no ccb */
+ printk(KERN_WARNING "(%s%d) Spurious interrupt; no ccb.\n",
+ ips_name, ha->host_num);
+ continue ;
+ }
+
+ scb = (ips_scb_t *) sp->scb_addr;
+
+ /*
+ * use the callback function to finish things up
+ * NOTE: interrupts are OFF for this
+ */
+ (*scb->callback) (ha, scb);
+ }
+
+ clear_bit(IPS_IN_INTR, &ha->flags);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_info */
+/* */
+/* Routine Description: */
+/* */
+/* Return info about the driver */
+/* */
+/****************************************************************************/
+const char *
+ips_info(struct Scsi_Host *SH) {
+ static char buffer[256];
+ char *bp;
+ ips_ha_t *ha;
+
+ DBG("ips_info");
+
+ ha = HA(SH);
+
+ if (!ha)
+ return (NULL);
+
+ bp = &buffer[0];
+ memset(bp, 0, sizeof(buffer));
+
+ strcpy(bp, "IBM PCI ServeRAID ");
+ strcat(bp, IPS_VERSION_HIGH);
+ strcat(bp, IPS_VERSION_LOW);
+
+ if (ha->ad_type > 0 &&
+ ha->ad_type <= MAX_ADAPTER_NAME) {
+ strcat(bp, " <");
+ strcat(bp, ips_adapter_name[ha->ad_type-1]);
+ strcat(bp, ">");
+ }
+
+ return (bp);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_proc_info */
+/* */
+/* Routine Description: */
+/* */
+/* The passthru interface for the driver */
+/* */
+/****************************************************************************/
+int
+ips_proc_info(char *buffer, char **start, off_t offset,
+ int length, int hostno, int func) {
+ int i;
+ int ret;
+ ips_ha_t *ha = NULL;
+
+ DBG("ips_proc_info");
+
+ /* Find our host structure */
+ for (i = 0; i < ips_num_controllers; i++) {
+ if (ips_sh[i] && ips_sh[i]->host_no == hostno) {
+ ha = (ips_ha_t *) ips_sh[i]->hostdata;
+
+ break;
+ }
+ }
+
+ if (!ha)
+ return (-EINVAL);
+
+ if (func) {
+ /* write */
+ return (0);
+ } else {
+ /* read */
+ if (start)
+ *start = buffer;
+
+ ret = ips_host_info(ha, buffer, offset, length);
+
+ return (ret);
+ }
+}
+
+/*--------------------------------------------------------------------------*/
+/* Helper Functions */
+/*--------------------------------------------------------------------------*/
+
+#ifndef NO_IPS_CMDLINE
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_is_passthru */
+/* */
+/* Routine Description: */
+/* */
+/* Determine if the specified SCSI command is really a passthru command */
+/* */
+/****************************************************************************/
+static int
+ips_is_passthru(Scsi_Cmnd *SC) {
+ DBG("ips_is_passthru");
+
+ if (!SC)
+ return (0);
+
+ if ((SC->channel == 0) &&
+ (SC->target == IPS_ADAPTER_ID) &&
+ (SC->lun == 0) &&
+ (SC->cmnd[0] == 0x0d) &&
+ (SC->request_bufflen) &&
+ (!SC->use_sg) &&
+ (((char *) SC->request_buffer)[0] == 'C') &&
+ (((char *) SC->request_buffer)[1] == 'O') &&
+ (((char *) SC->request_buffer)[2] == 'P') &&
+ (((char *) SC->request_buffer)[3] == 'P')) {
+ return (1);
+ } else {
+ return (0);
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_is_passthru */
+/* */
+/* Routine Description: */
+/* */
+/* Make a passthru command out of the info in the Scsi block */
+/* */
+/****************************************************************************/
+static int
+ips_make_passthru(ips_ha_t *ha, Scsi_Cmnd *SC, ips_scb_t *scb) {
+ ips_passthru_t *pt;
+
+ DBG("ips_make_passthru");
+
+ if (!SC->request_bufflen || !SC->request_buffer) {
+ /* no data */
+#if IPS_DEBUG_PT >= 1
+ printk(KERN_NOTICE "(%s%d) No passthru structure\n",
+ ips_name, ha->host_num);
+#endif
+
+ return (IPS_FAILURE);
+ }
+
+ if (SC->request_bufflen < sizeof(ips_passthru_t)) {
+ /* wrong size */
+#if IPS_DEBUG_PT >= 1
+ printk(KERN_NOTICE "(%s%d) Passthru structure wrong size\n",
+ ips_name, ha->host_num);
+#endif
+
+ return (IPS_FAILURE);
+ }
+
+ if ((((char *) SC->request_buffer)[0] != 'C') ||
+ (((char *) SC->request_buffer)[1] != 'O') ||
+ (((char *) SC->request_buffer)[2] != 'P') ||
+ (((char *) SC->request_buffer)[3] != 'P')) {
+ /* signature doesn't match */
+#if IPS_DEBUG_PT >= 1
+ printk(KERN_NOTICE "(%s%d) Wrong signature on passthru structure.\n",
+ ips_name, ha->host_num);
+#endif
+
+ return (IPS_FAILURE);
+ }
+
+ pt = (ips_passthru_t *) SC->request_buffer;
+ scb->scsi_cmd = SC;
+
+ if (SC->request_bufflen < (sizeof(ips_passthru_t) + pt->CmdBSize)) {
+ /* wrong size */
+#if IPS_DEBUG_PT >= 1
+ printk(KERN_NOTICE "(%s%d) Passthru structure wrong size\n",
+ ips_name, ha->host_num);
+#endif
+
+ return (IPS_FAILURE);
+ }
+
+ switch (pt->CoppCmd) {
+ case IPS_NUMCTRLS:
+ memcpy(SC->request_buffer + sizeof(ips_passthru_t),
+ &ips_num_controllers, sizeof(int));
+ SC->result = DID_OK << 16;
+
+ return (IPS_SUCCESS_IMM);
+ case IPS_CTRLINFO:
+ memcpy(SC->request_buffer + sizeof(ips_passthru_t),
+ ha, sizeof(ips_ha_t));
+ SC->result = DID_OK << 16;
+
+ return (IPS_SUCCESS_IMM);
+ case COPPUSRCMD:
+ if (ips_usrcmd(ha, pt, scb))
+ return (IPS_SUCCESS);
+ else
+ return (IPS_FAILURE);
+ break;
+ }
+
+ return (IPS_FAILURE);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_usrcmd */
+/* */
+/* Routine Description: */
+/* */
+/* Process a user command and make it ready to send */
+/* */
+/****************************************************************************/
+static int
+ips_usrcmd(ips_ha_t *ha, ips_passthru_t *pt, ips_scb_t *scb) {
+ SG_LIST *sg_list;
+
+ DBG("ips_usrcmd");
+
+ if ((!scb) || (!pt) || (!ha))
+ return (0);
+
+ /* Save the S/G list pointer so it doesn't get clobbered */
+ sg_list = scb->sg_list;
+
+ /* copy in the CP */
+ memcpy(&scb->cmd, &pt->CoppCP.cmd, sizeof(IOCTL_INFO));
+ memcpy(&scb->dcdb, &pt->CoppCP.dcdb, sizeof(DCDB_TABLE));
+
+ /* FIX stuff that might be wrong */
+ scb->sg_list = sg_list;
+ scb->scb_busaddr = VIRT_TO_BUS(scb);
+ scb->bus = 0;
+ scb->target_id = 0;
+ scb->lun = 0;
+ scb->sg_len = 0;
+ scb->data_len = 0;
+ scb->flags = 0;
+ scb->op_code = 0;
+ scb->callback = ipsintr_done;
+ scb->timeout = ips_cmd_timeout;
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+
+ /* we don't support DCDB/READ/WRITE Scatter Gather */
+ if ((scb->cmd.basic_io.op_code == READ_SCATTER_GATHER) ||
+ (scb->cmd.basic_io.op_code == WRITE_SCATTER_GATHER) ||
+ (scb->cmd.basic_io.op_code == DIRECT_CDB_SCATTER_GATHER))
+ return (0);
+
+ if (pt->CmdBSize && pt->CmdBuffer) {
+ scb->data_busaddr = VIRT_TO_BUS(scb->scsi_cmd->request_buffer + sizeof(ips_passthru_t));
+ } else {
+ scb->data_busaddr = 0L;
+ }
+
+ if (pt->CmdBSize) {
+ if (scb->cmd.dcdb.op_code == DIRECT_CDB) {
+ scb->cmd.dcdb.dcdb_address = VIRT_TO_BUS(&scb->dcdb);
+ scb->dcdb.buffer_pointer = scb->data_busaddr;
+ } else {
+ scb->cmd.basic_io.sg_addr = scb->data_busaddr;
+ }
+ }
+
+ /* set timeouts */
+ if (pt->TimeOut) {
+ scb->timeout = pt->TimeOut;
+
+ if (pt->TimeOut <= 10)
+ scb->dcdb.cmd_attribute |= TIMEOUT_10;
+ else if (pt->TimeOut <= 60)
+ scb->dcdb.cmd_attribute |= TIMEOUT_60;
+ else
+ scb->dcdb.cmd_attribute |= TIMEOUT_20M;
+ }
+
+ /* assume error */
+ scb->scsi_cmd->result = DID_ERROR << 16;
+
+ /* success */
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_cleanup_passthru */
+/* */
+/* Routine Description: */
+/* */
+/* Cleanup after a passthru command */
+/* */
+/****************************************************************************/
+static void
+ips_cleanup_passthru(ips_scb_t *scb) {
+ ips_passthru_t *pt;
+
+ DBG("ips_cleanup_passthru");
+
+ if ((!scb) || (!scb->scsi_cmd) || (!scb->scsi_cmd->request_buffer)) {
+#if IPS_DEBUG_PT >= 1
+ printk(KERN_NOTICE "IPS couldn't cleanup\n");
+#endif
+
+ return ;
+ }
+
+ pt = (ips_passthru_t *) scb->scsi_cmd->request_buffer;
+
+ /* Copy data back to the user */
+ pt->BasicStatus = scb->basic_status;
+ pt->ExtendedStatus = scb->extended_status;
+
+ scb->scsi_cmd->result = DID_OK << 16;
+}
+
+#endif
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_host_info */
+/* */
+/* Routine Description: */
+/* */
+/* The passthru interface for the driver */
+/* */
+/****************************************************************************/
+static int
+ips_host_info(ips_ha_t *ha, char *ptr, off_t offset, int len) {
+ INFOSTR info;
+
+ DBG("ips_host_info");
+
+ info.buffer = ptr;
+ info.length = len;
+ info.offset = offset;
+ info.pos = 0;
+
+ copy_info(&info, "\nIBM ServeRAID General Information:\n\n");
+
+ if ((ha->nvram->signature == NVRAM_PAGE5_SIGNATURE) &&
+ (ha->nvram->adapter_type != 0))
+ copy_info(&info, "\tController Type : %s\n", ips_adapter_name[ha->ad_type-1]);
+ else
+ copy_info(&info, "\tController Type : Unknown\n");
+
+ copy_info(&info, "\tIO port address : 0x%lx\n", ha->io_addr);
+ copy_info(&info, "\tIRQ number : %d\n", ha->irq);
+
+ if (ha->nvram->signature == NVRAM_PAGE5_SIGNATURE)
+ copy_info(&info, "\tBIOS Version : %c%c%c%c%c%c%c%c\n",
+ ha->nvram->bios_high[0], ha->nvram->bios_high[1],
+ ha->nvram->bios_high[2], ha->nvram->bios_high[3],
+ ha->nvram->bios_low[0], ha->nvram->bios_low[1],
+ ha->nvram->bios_low[2], ha->nvram->bios_low[3]);
+
+ copy_info(&info, "\tFirmware Version : %c%c%c%c%c%c%c%c\n",
+ ha->enq->CodeBlkVersion[0], ha->enq->CodeBlkVersion[1],
+ ha->enq->CodeBlkVersion[2], ha->enq->CodeBlkVersion[3],
+ ha->enq->CodeBlkVersion[4], ha->enq->CodeBlkVersion[5],
+ ha->enq->CodeBlkVersion[6], ha->enq->CodeBlkVersion[7]);
+
+ copy_info(&info, "\tBoot Block Version : %c%c%c%c%c%c%c%c\n",
+ ha->enq->BootBlkVersion[0], ha->enq->BootBlkVersion[1],
+ ha->enq->BootBlkVersion[2], ha->enq->BootBlkVersion[3],
+ ha->enq->BootBlkVersion[4], ha->enq->BootBlkVersion[5],
+ ha->enq->BootBlkVersion[6], ha->enq->BootBlkVersion[7]);
+
+ copy_info(&info, "\tDriver Version : %s%s\n",
+ IPS_VERSION_HIGH, IPS_VERSION_LOW);
+
+ copy_info(&info, "\tMax Physical Devices : %d\n",
+ ha->enq->ucMaxPhysicalDevices);
+ copy_info(&info, "\tMax Active Commands : %d\n",
+ ha->max_cmds);
+ copy_info(&info, "\tCurrent Queued Commands : %d\n",
+ ha->scb_waitlist.count);
+ copy_info(&info, "\tCurrent Active Commands : %d\n",
+ ha->scb_activelist.count - ha->num_ioctl);
+ copy_info(&info, "\tCurrent Queued PT Commands : %d\n",
+ ha->copp_waitlist.count);
+ copy_info(&info, "\tCurrent Active PT Commands : %d\n",
+ ha->num_ioctl);
+
+ copy_info(&info, "\n");
+
+ return (info.pos > info.offset ? info.pos - info.offset : 0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: copy_mem_info */
+/* */
+/* Routine Description: */
+/* */
+/* Copy data into an INFOSTR structure */
+/* */
+/****************************************************************************/
+static void
+copy_mem_info(INFOSTR *info, char *data, int len) {
+ DBG("copy_mem_info");
+
+ if (info->pos + len > info->length)
+ len = info->length - info->pos;
+
+ if (info->pos + len < info->offset) {
+ info->pos += len;
+ return;
+ }
+
+ if (info->pos < info->offset) {
+ data += (info->offset - info->pos);
+ len -= (info->offset - info->pos);
+ }
+
+ if (len > 0) {
+ memcpy(info->buffer + info->pos, data, len);
+ info->pos += len;
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: copy_info */
+/* */
+/* Routine Description: */
+/* */
+/* printf style wrapper for an info structure */
+/* */
+/****************************************************************************/
+static int
+copy_info(INFOSTR *info, char *fmt, ...) {
+ va_list args;
+ char buf[81];
+ int len;
+
+ DBG("copy_info");
+
+ va_start(args, fmt);
+ len = vsprintf(buf, fmt, args);
+ va_end(args);
+
+ copy_mem_info(info, buf, len);
+
+ return (len);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_hainit */
+/* */
+/* Routine Description: */
+/* */
+/* Initialize the controller */
+/* */
+/* NOTE: Assumes to be called from with a lock */
+/* */
+/****************************************************************************/
+static int
+ips_hainit(ips_ha_t *ha) {
+ int i;
+
+ DBG("ips_hainit");
+
+ if (!ha)
+ return (0);
+
+ /* initialize status queue */
+ ips_statinit(ha);
+
+ /* Setup HBA ID's */
+ if (!ips_read_config(ha)) {
+
+#ifndef NO_IPS_RESET
+
+ /* Try to reset the controller and try again */
+ if (!ips_reset_adapter(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to reset controller.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ if (!ips_clear_adapter(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to initialize controller.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+#endif
+
+ if (!ips_read_config(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to read config from controller.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+ } /* end if */
+
+ /* write driver version */
+ if (!ips_write_driver_status(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to write driver info to controller.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ if (!ips_read_adapter_status(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to read controller status.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ if (!ips_read_subsystem_parameters(ha)) {
+ printk(KERN_WARNING "(%s%d) unable to read subsystem parameters.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ /* set limits on SID, LUN, BUS */
+ ha->ntargets = MAX_TARGETS + 1;
+ ha->nlun = 1;
+ ha->nbus = (ha->enq->ucMaxPhysicalDevices / MAX_TARGETS);
+
+ switch (ha->conf->logical_drive[0].ucStripeSize) {
+ case 4:
+ ha->max_xfer = 0x10000;
+ break;
+
+ case 5:
+ ha->max_xfer = 0x20000;
+ break;
+
+ case 6:
+ ha->max_xfer = 0x40000;
+ break;
+
+ case 7:
+ default:
+ ha->max_xfer = 0x80000;
+ break;
+ }
+
+ /* setup max concurrent commands */
+ if (ha->subsys->param[4] & 0x1) {
+ /* Use the new method */
+ ha->max_cmds = ha->enq->ucConcurrentCmdCount;
+ } else {
+ /* use the old method */
+ switch (ha->conf->logical_drive[0].ucStripeSize) {
+ case 4:
+ ha->max_cmds = 32;
+ break;
+
+ case 5:
+ ha->max_cmds = 16;
+ break;
+
+ case 6:
+ ha->max_cmds = 8;
+ break;
+
+ case 7:
+ default:
+ ha->max_cmds = 4;
+ break;
+ }
+ }
+
+ /* set controller IDs */
+ ha->ha_id[0] = IPS_ADAPTER_ID;
+ for (i = 1; i < ha->nbus; i++)
+ ha->ha_id[i] = ha->conf->init_id[i-1] & 0x1f;
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_next */
+/* */
+/* Routine Description: */
+/* */
+/* Take the next command off the queue and send it to the controller */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static void
+ips_next(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ Scsi_Cmnd *SC;
+ int ret;
+
+ DBG("ips_next");
+
+ if (!ha)
+ return ;
+
+#ifndef NO_IPS_CMDLINE
+ /*
+ * Send passthru commands
+ * These have priority over normal I/O
+ * but shouldn't affect performance too much
+ * since we limit the number that can be active
+ * on the card at any one time
+ */
+ while ((ha->num_ioctl < IPS_MAX_IOCTL) &&
+ (ha->copp_waitlist.head) &&
+ (scb = ips_getscb(ha))) {
+ SC = ips_removeq_wait_head(&ha->copp_waitlist);
+
+ ret = ips_make_passthru(ha, SC, scb);
+
+ switch (ret) {
+ case IPS_FAILURE:
+ if (scb->scsi_cmd) {
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ }
+ ips_freescb(ha, scb);
+ break;
+ case IPS_SUCCESS_IMM:
+ if (scb->scsi_cmd)
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+ break;
+ default:
+ break;
+ } /* end case */
+
+ if (ret != IPS_SUCCESS)
+ continue;
+
+ ret = ips_send_cmd(ha, scb);
+
+ if (ret == IPS_SUCCESS) {
+ ips_putq_scb_head(&ha->scb_activelist, scb);
+ ha->num_ioctl++;
+ }
+
+ switch(ret) {
+ case IPS_FAILURE:
+ if (scb->scsi_cmd) {
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ }
+
+ ips_freescb(ha, scb);
+ break;
+ case IPS_SUCCESS_IMM:
+ if (scb->scsi_cmd)
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+ break;
+ default:
+ break;
+ } /* end case */
+ }
+#endif
+
+ /*
+ * Send "Normal" I/O commands
+ */
+ while ((ha->scb_waitlist.head) &&
+ (scb = ips_getscb(ha))) {
+ SC = ips_removeq_wait_head(&ha->scb_waitlist);
+
+ SC->result = DID_OK;
+ SC->host_scribble = NULL;
+
+ memset(SC->sense_buffer, 0, sizeof(SC->sense_buffer));
+
+ scb->target_id = SC->target;
+ scb->lun = SC->lun;
+ scb->bus = SC->channel;
+ scb->scsi_cmd = SC;
+ scb->breakup = 0;
+ scb->data_len = 0;
+ scb->callback = ipsintr_done;
+ scb->timeout = ips_cmd_timeout;
+ memset(&scb->cmd, 0, 4);
+
+ /* copy in the CDB */
+ memcpy(scb->cdb, SC->cmnd, SC->cmd_len);
+
+ /* Now handle the data buffer */
+ if (SC->use_sg) {
+ struct scatterlist *sg;
+ int i;
+
+ sg = SC->request_buffer;
+
+ for (i = 0; i < SC->use_sg; i++) {
+ scb->sg_list[i].address = VIRT_TO_BUS(sg[i].address);
+ scb->sg_list[i].length = sg[i].length;
+
+ if (scb->data_len + sg[i].length > ha->max_xfer) {
+ /*
+ * Data Breakup required
+ */
+ scb->breakup = i;
+ break;
+ }
+
+ scb->data_len += sg[i].length;
+ }
+
+ if (!scb->breakup)
+ scb->sg_len = SC->use_sg;
+ else
+ scb->sg_len = scb->breakup;
+
+ scb->dcdb.transfer_length = scb->data_len;
+ scb->data_busaddr = VIRT_TO_BUS(scb->sg_list);
+ } else {
+ if (SC->request_bufflen) {
+ if (SC->request_bufflen > ha->max_xfer) {
+ /*
+ * Data breakup required
+ */
+ scb->breakup = 1;
+ scb->data_len = ha->max_xfer;
+ } else {
+ scb->data_len = SC->request_bufflen;
+ }
+
+ scb->dcdb.transfer_length = scb->data_len;
+ scb->data_busaddr = VIRT_TO_BUS(SC->request_buffer);
+ scb->sg_len = 0;
+ } else {
+ scb->data_busaddr = 0L;
+ scb->sg_len = 0;
+ scb->data_len = 0;
+ scb->dcdb.transfer_length = 0;
+ }
+
+ }
+
+ if ((scb->scsi_cmd->request.cmd == READ) && (SC->request_bufflen))
+ scb->dcdb.cmd_attribute |= DATA_IN;
+
+ if ((scb->scsi_cmd->request.cmd == WRITE) && (SC->request_bufflen))
+ scb->dcdb.cmd_attribute |= DATA_OUT;
+
+ if (scb->data_len >= IPS_MAX_XFER) {
+ scb->dcdb.cmd_attribute |= TRANSFER_64K;
+ scb->dcdb.transfer_length = 0;
+ }
+
+ ret = ips_send_cmd(ha, scb);
+
+ if (ret == IPS_SUCCESS)
+ ips_putq_scb_head(&ha->scb_activelist, scb);
+
+ switch(ret) {
+ case IPS_FAILURE:
+ if (scb->scsi_cmd) {
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ }
+
+ ips_freescb(ha, scb);
+ break;
+ case IPS_SUCCESS_IMM:
+ if (scb->scsi_cmd)
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+ break;
+ default:
+ break;
+ } /* end case */
+ } /* end while */
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_putq_scb_head */
+/* */
+/* Routine Description: */
+/* */
+/* Add an item to the head of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline void
+ips_putq_scb_head(ips_scb_queue_t *queue, ips_scb_t *item) {
+ DBG("ips_putq_scb_head");
+
+ if (!item)
+ return ;
+
+ item->q_next = queue->head;
+ queue->head = item;
+
+ if (!queue->tail)
+ queue->tail = item;
+
+ queue->count++;
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_putq_scb_tail */
+/* */
+/* Routine Description: */
+/* */
+/* Add an item to the tail of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline void
+ips_putq_scb_tail(ips_scb_queue_t *queue, ips_scb_t *item) {
+ DBG("ips_putq_scb_tail");
+
+ if (!item)
+ return ;
+
+ item->q_next = NULL;
+
+ if (queue->tail)
+ queue->tail->q_next = item;
+
+ queue->tail = item;
+
+ if (!queue->head)
+ queue->head = item;
+
+ queue->count++;
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_removeq_scb_head */
+/* */
+/* Routine Description: */
+/* */
+/* Remove the head of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline ips_scb_t *
+ips_removeq_scb_head(ips_scb_queue_t *queue) {
+ ips_scb_t *item;
+
+ DBG("ips_removeq_scb_head");
+
+ item = queue->head;
+
+ if (!item)
+ return (NULL);
+
+ queue->head = item->q_next;
+ item->q_next = NULL;
+
+ if (queue->tail == item)
+ queue->tail = NULL;
+
+ queue->count--;
+
+ return (item);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_removeq_scb */
+/* */
+/* Routine Description: */
+/* */
+/* Remove an item from a queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline ips_scb_t *
+ips_removeq_scb(ips_scb_queue_t *queue, ips_scb_t *item) {
+ ips_scb_t *p;
+
+ DBG("ips_removeq_scb");
+
+ if (!item)
+ return (NULL);
+
+ if (item == queue->head)
+ return (ips_removeq_scb_head(queue));
+
+ p = queue->head;
+
+ while ((p) && (item != p->q_next))
+ p = p->q_next;
+
+ if (p) {
+ /* found a match */
+ p->q_next = item->q_next;
+
+ if (!item->q_next)
+ queue->tail = p;
+
+ item->q_next = NULL;
+ queue->count--;
+
+ return (item);
+ }
+
+ return (NULL);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_putq_wait_head */
+/* */
+/* Routine Description: */
+/* */
+/* Add an item to the head of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline void
+ips_putq_wait_head(ips_wait_queue_t *queue, Scsi_Cmnd *item) {
+ DBG("ips_putq_wait_head");
+
+ if (!item)
+ return ;
+
+ item->host_scribble = (char *) queue->head;
+ queue->head = item;
+
+ if (!queue->tail)
+ queue->tail = item;
+
+ queue->count++;
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_putq_wait_tail */
+/* */
+/* Routine Description: */
+/* */
+/* Add an item to the tail of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline void
+ips_putq_wait_tail(ips_wait_queue_t *queue, Scsi_Cmnd *item) {
+ DBG("ips_putq_wait_tail");
+
+ if (!item)
+ return ;
+
+ item->host_scribble = NULL;
+
+ if (queue->tail)
+ queue->tail->host_scribble = (char *)item;
+
+ queue->tail = item;
+
+ if (!queue->head)
+ queue->head = item;
+
+ queue->count++;
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_removeq_wait_head */
+/* */
+/* Routine Description: */
+/* */
+/* Remove the head of the queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline Scsi_Cmnd *
+ips_removeq_wait_head(ips_wait_queue_t *queue) {
+ Scsi_Cmnd *item;
+
+ DBG("ips_removeq_wait_head");
+
+ item = queue->head;
+
+ if (!item)
+ return (NULL);
+
+ queue->head = (Scsi_Cmnd *) item->host_scribble;
+ item->host_scribble = NULL;
+
+ if (queue->tail == item)
+ queue->tail = NULL;
+
+ queue->count--;
+
+ return (item);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_removeq_wait */
+/* */
+/* Routine Description: */
+/* */
+/* Remove an item from a queue */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static inline Scsi_Cmnd *
+ips_removeq_wait(ips_wait_queue_t *queue, Scsi_Cmnd *item) {
+ Scsi_Cmnd *p;
+
+ DBG("ips_removeq_wait");
+
+ if (!item)
+ return (NULL);
+
+ if (item == queue->head)
+ return (ips_removeq_wait_head(queue));
+
+ p = queue->head;
+
+ while ((p) && (item != (Scsi_Cmnd *) p->host_scribble))
+ p = (Scsi_Cmnd *) p->host_scribble;
+
+ if (p) {
+ /* found a match */
+ p->host_scribble = item->host_scribble;
+
+ if (!item->host_scribble)
+ queue->tail = p;
+
+ item->host_scribble = NULL;
+ queue->count--;
+
+ return (item);
+ }
+
+ return (NULL);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ipsintr_blocking */
+/* */
+/* Routine Description: */
+/* */
+/* Finalize an interrupt for internal commands */
+/* */
+/****************************************************************************/
+static void
+ipsintr_blocking(ips_ha_t *ha, ips_scb_t *scb) {
+ DBG("ipsintr_blocking");
+
+ if ((ha->waitflag == TRUE) &&
+ (ha->cmd_in_progress == scb->cdb[0])) {
+ ha->waitflag = FALSE;
+
+ return ;
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ipsintr_done */
+/* */
+/* Routine Description: */
+/* */
+/* Finalize an interrupt for non-internal commands */
+/* */
+/****************************************************************************/
+static void
+ipsintr_done(ips_ha_t *ha, ips_scb_t *scb) {
+ DBG("ipsintr_done");
+
+ if (scb->scsi_cmd == NULL) {
+ /* unexpected interrupt */
+ printk(KERN_WARNING "(%s%d) Spurious interrupt; scsi_cmd not set.\n",
+ ips_name, ha->host_num);
+
+ return;
+ }
+
+ ips_done(ha, scb);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_done */
+/* */
+/* Routine Description: */
+/* */
+/* Do housekeeping on completed commands */
+/* */
+/****************************************************************************/
+static void
+ips_done(ips_ha_t *ha, ips_scb_t *scb) {
+ int ret;
+
+ DBG("ips_done");
+
+ if (!scb)
+ return ;
+
+#ifndef NO_IPS_CMDLINE
+ if ((scb->scsi_cmd) && (ips_is_passthru(scb->scsi_cmd))) {
+ ips_cleanup_passthru(scb);
+ ha->num_ioctl--;
+ } else {
+#endif
+ /*
+ * Check to see if this command had too much
+ * data and had to be broke up. If so, queue
+ * the rest of the data and continue.
+ */
+ if (scb->breakup) {
+ /* we had a data breakup */
+ u16 bk_save;
+
+ bk_save = scb->breakup;
+ scb->breakup = 0;
+
+ if (scb->scsi_cmd->use_sg) {
+ /* S/G request */
+ struct scatterlist *sg;
+ int i;
+
+ sg = scb->scsi_cmd->request_buffer;
+
+ scb->data_len = 0;
+
+ for (i = bk_save; i < scb->scsi_cmd->use_sg; i++) {
+ scb->sg_list[i - bk_save].address = VIRT_TO_BUS(sg[i].address);
+ scb->sg_list[i - bk_save].length = sg[i].length;
+
+ if (scb->data_len + sg[i].length > ha->max_xfer) {
+ /*
+ * Data Breakup required
+ */
+ scb->breakup = i;
+ break;
+ }
+
+ scb->data_len += sg[i].length;
+ }
+
+ if (!scb->breakup)
+ scb->sg_len = scb->scsi_cmd->use_sg - bk_save;
+ else
+ scb->sg_len = scb->breakup - bk_save;
+
+ scb->dcdb.transfer_length = scb->data_len;
+ scb->data_busaddr = VIRT_TO_BUS(scb->sg_list);
+ } else {
+ /* Non S/G Request */
+ if (scb->scsi_cmd->request_bufflen - (bk_save * ha->max_xfer)) {
+ /* Further breakup required */
+ scb->data_len = ha->max_xfer;
+ scb->data_busaddr = VIRT_TO_BUS(scb->scsi_cmd->request_buffer + (bk_save * ha->max_xfer));
+ scb->breakup = bk_save + 1;
+ } else {
+ scb->data_len = scb->scsi_cmd->request_bufflen - (bk_save * ha->max_xfer);
+ scb->data_busaddr = VIRT_TO_BUS(scb->scsi_cmd->request_buffer + (bk_save * ha->max_xfer));
+ }
+
+ scb->dcdb.transfer_length = scb->data_len;
+ scb->sg_len = 0;
+ }
+
+ if ((scb->scsi_cmd->request.cmd == READ) && (scb->data_len))
+ scb->dcdb.cmd_attribute |= DATA_IN;
+
+ if ((scb->scsi_cmd->request.cmd == WRITE) && (scb->data_len))
+ scb->dcdb.cmd_attribute |= DATA_OUT;
+
+ if (scb->data_len >= IPS_MAX_XFER) {
+ scb->dcdb.cmd_attribute |= TRANSFER_64K;
+ scb->dcdb.transfer_length = 0;
+ }
+
+ ret = ips_send_cmd(ha, scb);
+
+ switch(ret) {
+ case IPS_FAILURE:
+ if (scb->scsi_cmd) {
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ }
+
+ ips_freescb(ha, scb);
+ break;
+ case IPS_SUCCESS_IMM:
+ if (scb->scsi_cmd) {
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ }
+
+ ips_freescb(ha, scb);
+ break;
+ default:
+ break;
+ } /* end case */
+
+ return ;
+ }
+#ifndef NO_IPS_CMDLINE
+ } /* end if passthru */
+#endif
+
+ /* call back to SCSI layer */
+ scb->scsi_cmd->scsi_done(scb->scsi_cmd);
+ ips_freescb(ha, scb);
+
+ /* do the next command */
+ ips_next(ha);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_map_status */
+/* */
+/* Routine Description: */
+/* */
+/* Map ServeRAID error codes to Linux Error Codes */
+/* */
+/****************************************************************************/
+static int
+ips_map_status(ips_scb_t *scb, ips_stat_t *sp) {
+ int errcode;
+
+ DBG("ips_map_status");
+
+ if (scb->bus) {
+ /* copy SCSI status and sense data for DCDB commands */
+ memcpy(scb->scsi_cmd->sense_buffer, scb->dcdb.sense_info,
+ sizeof(scb->scsi_cmd->sense_buffer));
+ scb->scsi_cmd->result = scb->dcdb.scsi_status;
+ } else
+ scb->scsi_cmd->result = 0;
+
+ /* default driver error */
+ errcode = DID_ERROR;
+
+ switch (scb->basic_status & GSC_STATUS_MASK) {
+ case CMD_TIMEOUT:
+ errcode = DID_TIME_OUT;
+ break;
+
+ case INVAL_OPCO:
+ case INVAL_CMD_BLK:
+ case INVAL_PARM_BLK:
+ case LOG_DRV_ERROR:
+ case CMD_CMPLT_WERROR:
+ break;
+
+ case PHYS_DRV_ERROR:
+ /*
+ * For physical drive errors that
+ * are not on a logical drive should
+ * be DID_OK. The SCSI errcode will
+ * show what the real error is.
+ */
+ if (scb->bus)
+ errcode = DID_OK;
+
+ switch (scb->extended_status) {
+ case SELECTION_TIMEOUT:
+ if (scb->bus) {
+ scb->scsi_cmd->result |= DID_TIME_OUT << 16;
+
+ return (0);
+ }
+ break;
+ case DATA_OVER_UNDER_RUN:
+ if ((scb->bus) && (scb->dcdb.transfer_length < scb->data_len)) {
+ if ((scb->scsi_cmd->cmnd[0] == INQUIRY) &&
+ ((((char *) scb->scsi_cmd->buffer)[0] & 0x1f) == TYPE_DISK)) {
+ /* underflow -- no error */
+ /* restrict access to physical DASD */
+ errcode = DID_TIME_OUT;
+ break;
+ }
+
+ /* normal underflow Occured */
+ if (scb->dcdb.transfer_length >= scb->scsi_cmd->underflow) {
+ scb->scsi_cmd->result |= DID_OK << 16;
+
+ return (0);
+ }
+ }
+
+ break;
+ case EXT_RECOVERY:
+ /* don't fail recovered errors */
+ if (scb->bus) {
+ scb->scsi_cmd->result |= DID_OK << 16;
+
+ return (0);
+ }
+ break;
+
+ case EXT_HOST_RESET:
+ case EXT_DEVICE_RESET:
+ errcode = DID_RESET;
+ break;
+
+ case EXT_CHECK_CONDITION:
+ break;
+ } /* end switch */
+ } /* end switch */
+
+ scb->scsi_cmd->result |= (errcode << 16);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_send */
+/* */
+/* Routine Description: */
+/* */
+/* Wrapper for ips_send_cmd */
+/* */
+/****************************************************************************/
+static int
+ips_send(ips_ha_t *ha, ips_scb_t *scb, scb_callback callback) {
+ int ret;
+
+ DBG("ips_send");
+
+ scb->callback = callback;
+
+ ret = ips_send_cmd(ha, scb);
+
+ return (ret);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_send_wait */
+/* */
+/* Routine Description: */
+/* */
+/* Send a command to the controller and wait for it to return */
+/* */
+/****************************************************************************/
+static int
+ips_send_wait(ips_ha_t *ha, ips_scb_t *scb, int timeout) {
+ int ret;
+
+ DBG("ips_send_wait");
+
+ ha->waitflag = TRUE;
+ ha->cmd_in_progress = scb->cdb[0];
+
+ ret = ips_send(ha, scb, ipsintr_blocking);
+
+ if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
+ return (ret);
+
+ ret = ips_wait(ha, timeout, IPS_INTR_OFF);
+
+ return (ret);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_send_cmd */
+/* */
+/* Routine Description: */
+/* */
+/* Map SCSI commands to ServeRAID commands for logical drives */
+/* */
+/****************************************************************************/
+static int
+ips_send_cmd(ips_ha_t *ha, ips_scb_t *scb) {
+ int ret;
+
+ DBG("ips_send_cmd");
+
+ ret = IPS_SUCCESS;
+
+ if (!scb->scsi_cmd) {
+ /* internal command */
+
+ if (scb->bus > 0) {
+ /* ServeRAID commands can't be issued */
+ /* to real devices -- fail them */
+ if ((ha->waitflag == TRUE) &&
+ (ha->cmd_in_progress == scb->cdb[0])) {
+ ha->waitflag = FALSE;
+ }
+
+ return (1);
+ }
+#ifndef NO_IPS_CMDLINE
+ } else if ((scb->bus == 0) && (!ips_is_passthru(scb->scsi_cmd))) {
+#else
+ } else if (scb->bus == 0) {
+#endif
+ /* command to logical bus -- interpret */
+ ret = IPS_SUCCESS_IMM;
+
+ switch (scb->scsi_cmd->cmnd[0]) {
+ case ALLOW_MEDIUM_REMOVAL:
+ case REZERO_UNIT:
+ case ERASE:
+ case WRITE_FILEMARKS:
+ case SPACE:
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ break;
+
+ case START_STOP:
+ scb->scsi_cmd->result = DID_OK << 16;
+
+ case TEST_UNIT_READY:
+ case INQUIRY:
+ if (scb->target_id == IPS_ADAPTER_ID) {
+ /*
+ * Either we have a TUR
+ * or we have a SCSI inquiry
+ */
+ if (scb->scsi_cmd->cmnd[0] == TEST_UNIT_READY)
+ scb->scsi_cmd->result = DID_OK << 16;
+
+ if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
+ INQUIRYDATA inq;
+
+ memset(&inq, 0, sizeof(INQUIRYDATA));
+
+ inq.DeviceType = TYPE_PROCESSOR;
+ inq.DeviceTypeQualifier = 0;
+ inq.RemoveableMedia = 0;
+ inq.Versions = 0x1; /* SCSI I */
+ inq.AdditionalLength = 31;
+ strncpy(inq.VendorId, "IBM ", 8);
+ strncpy(inq.ProductId, "SERVERAID ", 16);
+ strncpy(inq.ProductRevisionLevel, "1.00", 4);
+
+ memcpy(scb->scsi_cmd->request_buffer, &inq, scb->scsi_cmd->request_bufflen);
+
+ scb->scsi_cmd->result = DID_OK << 16;
+ }
+ } else {
+ scb->cmd.logical_info.op_code = GET_LOGICAL_DRIVE_INFO;
+ scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.logical_info.buffer_addr = VIRT_TO_BUS(&ha->adapt->logical_drive_info);
+ scb->cmd.logical_info.reserved = 0;
+ scb->cmd.logical_info.reserved2 = 0;
+ ret = IPS_SUCCESS;
+ }
+
+ break;
+
+ case REQUEST_SENSE:
+ ips_reqsen(ha, scb);
+ scb->scsi_cmd->result = DID_OK << 16;
+ break;
+
+ case READ_6:
+ case WRITE_6:
+ if (!scb->sg_len) {
+ scb->cmd.basic_io.op_code =
+ (scb->scsi_cmd->cmnd[0] == READ_6) ? IPS_READ : IPS_WRITE;
+ } else {
+ scb->cmd.basic_io.op_code =
+ (scb->scsi_cmd->cmnd[0] == READ_6) ? READ_SCATTER_GATHER : WRITE_SCATTER_GATHER;
+ }
+
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.log_drv = scb->target_id;
+ scb->cmd.basic_io.sg_count = scb->sg_len;
+ scb->cmd.basic_io.sg_addr = scb->data_busaddr;
+
+ if (scb->cmd.basic_io.lba)
+ scb->cmd.basic_io.lba += scb->cmd.basic_io.sector_count;
+ else
+ scb->cmd.basic_io.lba = (((scb->scsi_cmd->cmnd[1] & 0x1f) << 16) |
+ (scb->scsi_cmd->cmnd[2] << 8) |
+ (scb->scsi_cmd->cmnd[3]));
+
+ scb->cmd.basic_io.sector_count = scb->data_len / IPS_BLKSIZE;
+
+ if (scb->cmd.basic_io.sector_count == 0)
+ scb->cmd.basic_io.sector_count = 256;
+
+ scb->cmd.basic_io.reserved = 0;
+ ret = IPS_SUCCESS;
+ break;
+
+ case READ_10:
+ case WRITE_10:
+ if (!scb->sg_len) {
+ scb->cmd.basic_io.op_code =
+ (scb->scsi_cmd->cmnd[0] == READ_10) ? IPS_READ : IPS_WRITE;
+ } else {
+ scb->cmd.basic_io.op_code =
+ (scb->scsi_cmd->cmnd[0] == READ_10) ? READ_SCATTER_GATHER : WRITE_SCATTER_GATHER;
+ }
+
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.log_drv = scb->target_id;
+ scb->cmd.basic_io.sg_count = scb->sg_len;
+ scb->cmd.basic_io.sg_addr = scb->data_busaddr;
+
+ if (scb->cmd.basic_io.lba)
+ scb->cmd.basic_io.lba += scb->cmd.basic_io.sector_count;
+ else
+ scb->cmd.basic_io.lba = ((scb->scsi_cmd->cmnd[2] << 24) |
+ (scb->scsi_cmd->cmnd[3] << 16) |
+ (scb->scsi_cmd->cmnd[4] << 8) |
+ scb->scsi_cmd->cmnd[5]);
+
+ scb->cmd.basic_io.sector_count = scb->data_len / IPS_BLKSIZE;
+
+ scb->cmd.basic_io.reserved = 0;
+
+ if (scb->cmd.basic_io.sector_count == 0) {
+ /*
+ * This is a null condition
+ * we don't have to do anything
+ * so just return
+ */
+ scb->scsi_cmd->result = DID_OK << 16;
+ } else
+ ret = IPS_SUCCESS;
+
+ break;
+
+ case RESERVE:
+ case RELEASE:
+ scb->scsi_cmd->result = DID_OK << 16;
+ break;
+
+ case MODE_SENSE:
+ scb->cmd.basic_io.op_code = ENQUIRY;
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.sg_addr = VIRT_TO_BUS(ha->enq);
+ ret = IPS_SUCCESS;
+ break;
+
+ case READ_CAPACITY:
+ scb->cmd.logical_info.op_code = GET_LOGICAL_DRIVE_INFO;
+ scb->cmd.logical_info.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.logical_info.buffer_addr = VIRT_TO_BUS(&ha->adapt->logical_drive_info);
+ scb->cmd.logical_info.reserved = 0;
+ scb->cmd.logical_info.reserved2 = 0;
+ scb->cmd.logical_info.reserved3 = 0;
+ ret = IPS_SUCCESS;
+ break;
+
+ case SEND_DIAGNOSTIC:
+ case REASSIGN_BLOCKS:
+ case FORMAT_UNIT:
+ case SEEK_10:
+ case VERIFY:
+ case READ_DEFECT_DATA:
+ case READ_BUFFER:
+ case WRITE_BUFFER:
+ scb->scsi_cmd->result = DID_OK << 16;
+ break;
+
+ default:
+ scb->scsi_cmd->result = DID_ERROR << 16;
+ break;
+ } /* end switch */
+ } /* end if */
+
+ if (ret == IPS_SUCCESS_IMM)
+ return (ret);
+
+ /* setup DCDB */
+ if (scb->bus > 0) {
+ if (!scb->sg_len)
+ scb->cmd.dcdb.op_code = DIRECT_CDB;
+ else
+ scb->cmd.dcdb.op_code = DIRECT_CDB_SCATTER_GATHER;
+
+ scb->cmd.dcdb.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.dcdb.dcdb_address = VIRT_TO_BUS(&scb->dcdb);
+ scb->cmd.dcdb.reserved = 0;
+ scb->cmd.dcdb.reserved2 = 0;
+ scb->cmd.dcdb.reserved3 = 0;
+
+ scb->dcdb.device_address = ((scb->bus - 1) << 4) | scb->target_id;
+ scb->dcdb.cmd_attribute |= DISCONNECT_ALLOWED;
+
+ if (scb->timeout) {
+ if (scb->timeout <= 10)
+ scb->dcdb.cmd_attribute |= TIMEOUT_10;
+ else if (scb->timeout <= 60)
+ scb->dcdb.cmd_attribute |= TIMEOUT_60;
+ else
+ scb->dcdb.cmd_attribute |= TIMEOUT_20M;
+ }
+
+ if (!(scb->dcdb.cmd_attribute & TIMEOUT_20M))
+ scb->dcdb.cmd_attribute |= TIMEOUT_20M;
+
+ scb->dcdb.sense_length = sizeof(scb->scsi_cmd->sense_buffer);
+ scb->dcdb.buffer_pointer = scb->data_busaddr;
+ scb->dcdb.sg_count = scb->sg_len;
+ scb->dcdb.cdb_length = scb->scsi_cmd->cmd_len;
+ memcpy(scb->dcdb.scsi_cdb, scb->scsi_cmd->cmnd, scb->scsi_cmd->cmd_len);
+ }
+
+ return (ips_issue(ha, scb));
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_chk_status */
+/* */
+/* Routine Description: */
+/* */
+/* Check the status of commands to logical drives */
+/* */
+/****************************************************************************/
+static int
+ips_chkstatus(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ ips_stat_t *sp = &ha->sp;
+ u8 basic_status;
+ u8 ext_status;
+ int command_id;
+ int errcode;
+ int ret;
+
+ DBG("ips_chkstatus");
+
+ command_id = ips_statupd(ha);
+
+ if (command_id > (MAX_CMDS-1)) {
+ printk(KERN_NOTICE "(%s%d) invalid command id received: %d\n",
+ ips_name, ha->host_num, command_id);
+
+ return (-1);
+ }
+
+ scb = &ha->scbs[command_id];
+ sp->scb_addr = (u32) scb;
+ sp->residue_len = 0;
+ scb->basic_status = basic_status = ha->adapt->p_status_tail->basic_status & BASIC_STATUS_MASK;
+ scb->extended_status = ext_status = ha->adapt->p_status_tail->extended_status;
+
+ /* Remove the item from the active queue */
+ ips_removeq_scb(&ha->scb_activelist, scb);
+
+ if (!scb->scsi_cmd)
+ /* internal commands are handled in do_ipsintr */
+ return (0);
+
+#ifndef NO_IPS_CMDLINE
+ if ((scb->scsi_cmd) && (ips_is_passthru(scb->scsi_cmd)))
+ /* passthru - just returns the raw result */
+ return (0);
+#endif
+
+ errcode = DID_OK;
+ ret = 0;
+
+ if (((basic_status & GSC_STATUS_MASK) == SSUCCESS) ||
+ ((basic_status & GSC_STATUS_MASK) == RECOVERED_ERROR)) {
+
+ if (scb->bus == 0) {
+#if IPS_DEBUG >= 1
+ if ((basic_status & GSC_STATUS_MASK) == RECOVERED_ERROR) {
+ printk(KERN_NOTICE "(%s%d) Recovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x\n",
+ ips_name, ha->host_num,
+ scb->cmd.basic_io.op_code, basic_status, ext_status);
+ }
+#endif
+
+ switch (scb->scsi_cmd->cmnd[0]) {
+ case ALLOW_MEDIUM_REMOVAL:
+ case REZERO_UNIT:
+ case ERASE:
+ case WRITE_FILEMARKS:
+ case SPACE:
+ errcode = DID_ERROR;
+ ret = 1;
+ break;
+
+ case START_STOP:
+ break;
+
+ case TEST_UNIT_READY:
+ if (!ips_online(ha, scb)) {
+ errcode = DID_TIME_OUT;
+ ret = 1;
+ }
+ break;
+
+ case INQUIRY:
+ if (ips_online(ha, scb)) {
+ ips_inquiry(ha, scb);
+ } else {
+ errcode = DID_TIME_OUT;
+ ret = 1;
+ }
+ break;
+
+ case REQUEST_SENSE:
+ ips_reqsen(ha, scb);
+ break;
+
+ case READ_6:
+ case WRITE_6:
+ case READ_10:
+ case WRITE_10:
+ case RESERVE:
+ case RELEASE:
+ break;
+
+ case MODE_SENSE:
+ if (!ips_online(ha, scb) || !ips_msense(ha, scb)) {
+ errcode = DID_ERROR;
+ ret = 1;
+ }
+ break;
+
+ case READ_CAPACITY:
+ if (ips_online(ha, scb))
+ ips_rdcap(ha, scb);
+ else {
+ errcode = DID_TIME_OUT;
+ ret = 1;
+ }
+ break;
+
+ case SEND_DIAGNOSTIC:
+ case REASSIGN_BLOCKS:
+ break;
+
+ case FORMAT_UNIT:
+ errcode = DID_ERROR;
+ ret = 1;
+ break;
+
+ case SEEK_10:
+ case VERIFY:
+ case READ_DEFECT_DATA:
+ case READ_BUFFER:
+ case WRITE_BUFFER:
+ break;
+
+ default:
+ errcode = DID_ERROR;
+ ret = 1;
+ } /* end switch */
+
+ scb->scsi_cmd->result = errcode << 16;
+ } else { /* bus == 0 */
+ /* restrict access to physical drives */
+ if ((scb->scsi_cmd->cmnd[0] == INQUIRY) &&
+ ((((char *) scb->scsi_cmd->buffer)[0] & 0x1f) == TYPE_DISK)) {
+
+ scb->scsi_cmd->result = DID_TIME_OUT << 16;
+
+ ret = 1;
+ }
+ } /* else */
+ } else { /* recovered error / success */
+#if IPS_DEBUG >= 1
+ if (scb->bus == 0) {
+ printk(KERN_NOTICE "(%s%d) Unrecovered Logical Drive Error OpCode: %x, BSB: %x, ESB: %x\n",
+ ips_name, ha->host_num,
+ scb->cmd.basic_io.op_code, basic_status, ext_status);
+ }
+#endif
+
+ ret = ips_map_status(scb, sp);
+ } /* else */
+
+ return (ret);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_online */
+/* */
+/* Routine Description: */
+/* */
+/* Determine if a logical drive is online */
+/* */
+/****************************************************************************/
+static int
+ips_online(ips_ha_t *ha, ips_scb_t *scb) {
+ DBG("ips_online");
+
+ if (scb->target_id >= MAX_LOGICAL_DRIVES)
+ return (0);
+
+ if ((scb->basic_status & GSC_STATUS_MASK) > 1) {
+ memset(&ha->adapt->logical_drive_info, 0, sizeof(ha->adapt->logical_drive_info));
+
+ return (0);
+ }
+
+ if (scb->target_id < ha->adapt->logical_drive_info.no_of_log_drive &&
+ ha->adapt->logical_drive_info.drive_info[scb->target_id].state != OFF_LINE &&
+ ha->adapt->logical_drive_info.drive_info[scb->target_id].state != FREE &&
+ ha->adapt->logical_drive_info.drive_info[scb->target_id].state != CRS &&
+ ha->adapt->logical_drive_info.drive_info[scb->target_id].state != SYS)
+ return (1);
+ else
+ return (0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_inquiry */
+/* */
+/* Routine Description: */
+/* */
+/* Simulate an inquiry command to a logical drive */
+/* */
+/****************************************************************************/
+static int
+ips_inquiry(ips_ha_t *ha, ips_scb_t *scb) {
+ INQUIRYDATA inq;
+
+ DBG("ips_inquiry");
+
+ memset(&inq, 0, sizeof(INQUIRYDATA));
+
+ inq.DeviceType = TYPE_DISK;
+ inq.DeviceTypeQualifier = 0;
+ inq.RemoveableMedia = 0;
+ inq.Versions = 0x1; /* SCSI I */
+ inq.AdditionalLength = 31;
+ strncpy(inq.VendorId, "IBM ", 8);
+ strncpy(inq.ProductId, "SERVERAID ", 16);
+ strncpy(inq.ProductRevisionLevel, "1.00", 4);
+
+ memcpy(scb->scsi_cmd->request_buffer, &inq, scb->scsi_cmd->request_bufflen);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_rdcap */
+/* */
+/* Routine Description: */
+/* */
+/* Simulate a read capacity command to a logical drive */
+/* */
+/****************************************************************************/
+static int
+ips_rdcap(ips_ha_t *ha, ips_scb_t *scb) {
+ CAPACITY_T *cap;
+
+ DBG("ips_rdcap");
+
+ if (scb->scsi_cmd->bufflen < 8)
+ return (0);
+
+ cap = (CAPACITY_T *) scb->scsi_cmd->request_buffer;
+
+ cap->lba = htonl(ha->adapt->logical_drive_info.drive_info[scb->target_id].sector_count - 1);
+ cap->len = htonl((u32) IPS_BLKSIZE);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_msense */
+/* */
+/* Routine Description: */
+/* */
+/* Simulate a mode sense command to a logical drive */
+/* */
+/****************************************************************************/
+static int
+ips_msense(ips_ha_t *ha, ips_scb_t *scb) {
+ u16 heads;
+ u16 sectors;
+ u32 cylinders;
+ ips_mdata_t mdata;
+
+ DBG("ips_msense");
+
+ if (ha->enq->ulDriveSize[scb->target_id] > 0x400000 &&
+ (ha->enq->ucMiscFlag & 0x8) == 0) {
+ heads = NORM_MODE_HEADS;
+ sectors = NORM_MODE_SECTORS;
+ } else {
+ heads = COMP_MODE_HEADS;
+ sectors = COMP_MODE_SECTORS;
+ }
+
+ cylinders = ha->enq->ulDriveSize[scb->target_id] / (heads * sectors);
+
+ mdata.plh.plh_type = 0;
+ mdata.plh.plh_wp = 0;
+ mdata.plh.plh_bdl = 8;
+
+ switch (scb->scsi_cmd->cmnd[2] & 0x3f) {
+ case 0x03: /* page 3 */
+ mdata.pdata.pg3.pg_pc = 0x3;
+ mdata.pdata.pg3.pg_res1 = 0;
+ mdata.pdata.pg3.pg_len = sizeof(DADF_T);
+ mdata.plh.plh_len = 3 + mdata.plh.plh_bdl + mdata.pdata.pg3.pg_len;
+ mdata.pdata.pg3.pg_trk_z = 0;
+ mdata.pdata.pg3.pg_asec_z = 0;
+ mdata.pdata.pg3.pg_atrk_z = 0;
+ mdata.pdata.pg3.pg_atrk_v = 0;
+ mdata.pdata.pg3.pg_sec_t = htons(sectors);
+ mdata.pdata.pg3.pg_bytes_s = htons(IPS_BLKSIZE);
+ mdata.pdata.pg3.pg_intl = htons(1);
+ mdata.pdata.pg3.pg_trkskew = 0;
+ mdata.pdata.pg3.pg_cylskew = 0;
+ mdata.pdata.pg3.pg_res2 = 0;
+ mdata.pdata.pg3.pg_ins = 0;
+ mdata.pdata.pg3.pg_surf = 0;
+ mdata.pdata.pg3.pg_rmb = 0;
+ mdata.pdata.pg3.pg_hsec = 0;
+ mdata.pdata.pg3.pg_ssec = 1;
+ break;
+
+ case 0x4:
+ mdata.pdata.pg4.pg_pc = 0x4;
+ mdata.pdata.pg4.pg_res1 = 0;
+ mdata.pdata.pg4.pg_len = sizeof(RDDG_T);
+ mdata.plh.plh_len = 3 + mdata.plh.plh_bdl + mdata.pdata.pg4.pg_len;
+ mdata.pdata.pg4.pg_cylu = (cylinders >> 8) & 0xffff;
+ mdata.pdata.pg4.pg_cyll = cylinders & 0xff;
+ mdata.pdata.pg4.pg_head = heads;
+ mdata.pdata.pg4.pg_wrpcompu = 0;
+ mdata.pdata.pg4.pg_wrpcompl = 0;
+ mdata.pdata.pg4.pg_redwrcur = 0;
+ mdata.pdata.pg4.pg_drstep = htons(1);
+ mdata.pdata.pg4.pg_landu = 0;
+ mdata.pdata.pg4.pg_landl = 0;
+ mdata.pdata.pg4.pg_res2 = 0;
+ break;
+ default:
+ return (0);
+ } /* end switch */
+
+ memcpy(scb->scsi_cmd->request_buffer, &mdata, scb->scsi_cmd->request_bufflen);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_reqsen */
+/* */
+/* Routine Description: */
+/* */
+/* Simulate a request sense command to a logical drive */
+/* */
+/****************************************************************************/
+static int
+ips_reqsen(ips_ha_t *ha, ips_scb_t *scb) {
+ char *sp;
+
+ DBG("ips_reqsen");
+
+ sp = (char *) scb->scsi_cmd->sense_buffer;
+ memset(sp, 0, sizeof(scb->scsi_cmd->sense_buffer));
+
+ sp[0] = 0x70;
+ sp[3] = NO_SENSE;
+ sp[7] = 0xe;
+ sp[12] = NO_SENSE;
+
+ return (0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_free */
+/* */
+/* Routine Description: */
+/* */
+/* Free any allocated space for this controller */
+/* */
+/****************************************************************************/
+static void
+ips_free(ips_ha_t *ha) {
+ int i;
+
+ DBG("ips_free");
+
+ if (ha) {
+ if (ha->enq) {
+ kfree(ha->enq);
+ ha->enq = NULL;
+ }
+
+ if (ha->conf) {
+ kfree(ha->conf);
+ ha->conf = NULL;
+ }
+
+ if (ha->adapt) {
+ kfree(ha->adapt);
+ ha->adapt = NULL;
+ }
+
+ if (ha->nvram) {
+ kfree(ha->nvram);
+ ha->nvram = NULL;
+ }
+
+ if (ha->subsys) {
+ kfree(ha->subsys);
+ ha->subsys = NULL;
+ }
+
+ if (ha->dummy) {
+ kfree(ha->dummy);
+ ha->dummy = NULL;
+ }
+
+ if (ha->scbs) {
+ for (i = 0; i < ha->max_cmds; i++) {
+ if (ha->scbs[i].sg_list)
+ kfree(ha->scbs[i].sg_list);
+ }
+
+ kfree(ha->scbs);
+ ha->scbs = NULL;
+ } /* end if */
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_allocatescbs */
+/* */
+/* Routine Description: */
+/* */
+/* Allocate the command blocks */
+/* */
+/****************************************************************************/
+static int
+ips_allocatescbs(ips_ha_t *ha) {
+ ips_scb_t *scb_p;
+ int i;
+
+ DBG("ips_allocatescbs");
+
+ /* Allocate memory for the CCBs */
+ ha->scbs = (ips_scb_t *) kmalloc(ha->max_cmds * sizeof(ips_scb_t), GFP_KERNEL|GFP_DMA);
+
+ memset(ha->scbs, 0, ha->max_cmds * sizeof(ips_scb_t));
+
+ for (i = 0; i < ha->max_cmds; i++) {
+ scb_p = &ha->scbs[i];
+
+ /* allocate S/G list */
+ scb_p->sg_list = (SG_LIST *) kmalloc(sizeof(SG_LIST) * MAX_SG_ELEMENTS, GFP_KERNEL|GFP_DMA);
+
+ if (! scb_p->sg_list)
+ return (0);
+
+ /* add to the free list */
+ if (i < ha->max_cmds - 1) {
+ scb_p->q_next = ha->scb_freelist;
+ ha->scb_freelist = scb_p;
+ }
+ }
+
+ /* success */
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_init_scb */
+/* */
+/* Routine Description: */
+/* */
+/* Initialize a CCB to default values */
+/* */
+/****************************************************************************/
+static void
+ips_init_scb(ips_ha_t *ha, ips_scb_t *scb) {
+ SG_LIST *sg_list;
+
+ DBG("ips_init_scb");
+
+ if (scb == NULL)
+ return ;
+
+ sg_list = scb->sg_list;
+
+ /* zero fill */
+ memset(scb, 0, sizeof(ips_scb_t));
+ memset(ha->dummy, 0, sizeof(BASIC_IO_CMD));
+
+ /* Initialize dummy command bucket */
+ ha->dummy->op_code = 0xFF;
+ ha->dummy->ccsar = VIRT_TO_BUS(ha->dummy);
+ ha->dummy->command_id = MAX_CMDS;
+
+ /* set bus address of scb */
+ scb->scb_busaddr = VIRT_TO_BUS(scb);
+ scb->sg_list = sg_list;
+
+ /* Neptune Fix */
+ scb->cmd.basic_io.cccr = ILE;
+ scb->cmd.basic_io.ccsar = VIRT_TO_BUS(ha->dummy);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_get_scb */
+/* */
+/* Routine Description: */
+/* */
+/* Initialize a CCB to default values */
+/* */
+/* ASSUMED to be callled from within a lock */
+/* */
+/****************************************************************************/
+static ips_scb_t *
+ips_getscb(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ unsigned int cpu_flags;
+
+ DBG("ips_getscb");
+
+ spin_lock_irqsave(&ha->scb_lock, cpu_flags);
+ if ((scb = ha->scb_freelist) == NULL) {
+ spin_unlock_irqrestore(&ha->scb_lock, cpu_flags);
+
+ return (NULL);
+ }
+
+ ha->scb_freelist = scb->q_next;
+ scb->q_next = NULL;
+
+ spin_unlock_irqrestore(&ha->scb_lock, cpu_flags);
+
+ ips_init_scb(ha, scb);
+
+ return (scb);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_free_scb */
+/* */
+/* Routine Description: */
+/* */
+/* Return an unused CCB back to the free list */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static void
+ips_freescb(ips_ha_t *ha, ips_scb_t *scb) {
+ unsigned int cpu_flags;
+
+ DBG("ips_freescb");
+
+ /* check to make sure this is not our "special" scb */
+ if (IPS_COMMAND_ID(ha, scb) < (ha->max_cmds - 1)) {
+ spin_lock_irqsave(&ha->scb_lock, cpu_flags);
+ scb->q_next = ha->scb_freelist;
+ ha->scb_freelist = scb;
+ spin_unlock_irqrestore(&ha->scb_lock, cpu_flags);
+ }
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_reset_adapter */
+/* */
+/* Routine Description: */
+/* */
+/* Reset the controller */
+/* */
+/****************************************************************************/
+static int
+ips_reset_adapter(ips_ha_t *ha) {
+ u8 Isr;
+ u8 Cbsp;
+ u8 PostByte[MAX_POST_BYTES];
+ u8 ConfigByte[MAX_CONFIG_BYTES];
+ int i, j;
+ int reset_counter;
+
+ DBG("ips_reset_adapter");
+
+#if IPS_DEBUG >= 1
+ printk(KERN_WARNING "ips_reset_adapter: io addr: %x, irq: %d\n",
+ ha->io_addr, ha->irq);
+#endif
+
+ reset_counter = 0;
+
+ while (reset_counter < 2) {
+ reset_counter++;
+
+ outb(RST, ha->io_addr + SCPR);
+ MDELAY(ONE_SEC);
+ outb(0, ha->io_addr + SCPR);
+ MDELAY(ONE_SEC);
+
+ for (i = 0; i < MAX_POST_BYTES; i++) {
+ for (j = 0; j < 45; j++) {
+ Isr = inb(ha->io_addr + HISR);
+ if (Isr & GHI)
+ break;
+
+ MDELAY(ONE_SEC);
+ }
+
+ if (j >= 45) {
+ /* error occured */
+ if (reset_counter < 2)
+ continue;
+ else
+ /* reset failed */
+ return (0);
+ }
+
+ PostByte[i] = inb(ha->io_addr + ISPR);
+ outb(Isr, ha->io_addr + HISR);
+ }
+
+ if (PostByte[0] < GOOD_POST_BASIC_STATUS) {
+ printk("(%s%d) reset controller fails (post status %x %x).\n",
+ ips_name, ha->host_num, PostByte[0], PostByte[1]);
+
+ return (0);
+ }
+
+ for (i = 0; i < MAX_CONFIG_BYTES; i++) {
+ for (j = 0; j < 240; j++) {
+ Isr = inb(ha->io_addr + HISR);
+ if (Isr & GHI)
+ break;
+
+ MDELAY(ONE_SEC); /* 100 msec */
+ }
+
+ if (j >= 240) {
+ /* error occured */
+ if (reset_counter < 2)
+ continue;
+ else
+ /* reset failed */
+ return (0);
+ }
+
+ ConfigByte[i] = inb(ha->io_addr + ISPR);
+ outb(Isr, ha->io_addr + HISR);
+ }
+
+ if (ConfigByte[0] == 0 && ConfigByte[1] == 2) {
+ printk("(%s%d) reset controller fails (status %x %x).\n",
+ ips_name, ha->host_num, ConfigByte[0], ConfigByte[1]);
+
+ return (0);
+ }
+
+ for (i = 0; i < 240; i++) {
+ Cbsp = inb(ha->io_addr + CBSP);
+
+ if ((Cbsp & OP) == 0)
+ break;
+
+ MDELAY(ONE_SEC);
+ }
+
+ if (i >= 240) {
+ /* error occured */
+ if (reset_counter < 2)
+ continue;
+ else
+ /* reset failed */
+ return (0);
+ }
+
+ /* setup CCCR */
+ outw(0x1010, ha->io_addr + CCCR);
+
+ /* Enable busmastering */
+ outb(EBM, ha->io_addr + SCPR);
+
+ /* setup status queues */
+ ips_statinit(ha);
+
+ /* Enable interrupts */
+ outb(EI, ha->io_addr + HISR);
+
+ /* if we get here then everything went OK */
+ break;
+ }
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_statinit */
+/* */
+/* Routine Description: */
+/* */
+/* Initialize the status queues on the controller */
+/* */
+/****************************************************************************/
+static void
+ips_statinit(ips_ha_t *ha) {
+ u32 phys_status_start;
+
+ DBG("ips_statinit");
+
+ ha->adapt->p_status_start = ha->adapt->status;
+ ha->adapt->p_status_end = ha->adapt->status + MAX_CMDS;
+ ha->adapt->p_status_tail = ha->adapt->status;
+
+ phys_status_start = VIRT_TO_BUS(ha->adapt->status);
+ outl(phys_status_start, ha->io_addr + SQSR);
+ outl(phys_status_start + STATUS_Q_SIZE, ha->io_addr + SQER);
+ outl(phys_status_start + STATUS_SIZE, ha->io_addr + SQHR);
+ outl(phys_status_start, ha->io_addr + SQTR);
+
+ ha->adapt->hw_status_start = phys_status_start;
+ ha->adapt->hw_status_tail = phys_status_start;
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_statupd */
+/* */
+/* Routine Description: */
+/* */
+/* Remove an element from the status queue */
+/* */
+/****************************************************************************/
+static int
+ips_statupd(ips_ha_t *ha) {
+ int command_id;
+
+ DBG("ips_statupd");
+
+ if (ha->adapt->p_status_tail != ha->adapt->p_status_end) {
+ ha->adapt->p_status_tail++;
+ ha->adapt->hw_status_tail += sizeof(STATUS);
+ } else {
+ ha->adapt->p_status_tail = ha->adapt->p_status_start;
+ ha->adapt->hw_status_tail = ha->adapt->hw_status_start;
+ }
+
+ outl(ha->adapt->hw_status_tail, ha->io_addr + SQTR);
+
+ command_id = ha->adapt->p_status_tail->command_id;
+
+ return (command_id);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_issue */
+/* */
+/* Routine Description: */
+/* */
+/* Send a command down to the controller */
+/* */
+/* ASSUMED to be called from within a lock */
+/* */
+/****************************************************************************/
+static int
+ips_issue(ips_ha_t *ha, ips_scb_t *scb) {
+ u32 TimeOut;
+ u16 val;
+
+ DBG("ips_issue");
+
+#if IPS_DEBUG >= 10
+ if (scb->scsi_cmd)
+ printk(KERN_NOTICE "%s: ips_issue: cmd 0x%X id %d (%d %d %d)\n",
+ ips_name,
+ scb->cdb[0],
+ scb->cmd.basic_io.command_id,
+ scb->bus,
+ scb->target_id,
+ scb->lun);
+ else
+ printk(KERN_NOTICE "%s: ips_issue: logical cmd id %d\n",
+ ips_name,
+ scb->cmd.basic_io.command_id);
+#if IPS_DEBUG >= 11
+ MDELAY(ONE_SEC);
+#endif
+#endif
+
+ TimeOut = 0;
+
+ while ((val = inw(ha->io_addr + CCCR)) & SEMAPHORE) {
+ UDELAY(1000);
+
+ if (++TimeOut >= SEMAPHORE_TIMEOUT) {
+ if (!(val & START_STOP_BIT))
+ break;
+
+ printk(KERN_WARNING "(%s%d) ips_issue val [0x%x].\n",
+ ips_name, ha->host_num, val);
+ printk(KERN_WARNING "(%s%d) ips_issue semaphore chk timeout.\n",
+ ips_name, ha->host_num);
+
+ return (IPS_FAILURE);
+ } /* end if */
+ } /* end while */
+
+ outl(scb->scb_busaddr, ha->io_addr + CCSAR);
+ outw(START_COMMAND, ha->io_addr + CCCR);
+
+ return (IPS_SUCCESS);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_isintr */
+/* */
+/* Routine Description: */
+/* */
+/* Test to see if an interrupt is for us */
+/* */
+/****************************************************************************/
+static int
+ips_isintr(ips_ha_t *ha) {
+ u8 Isr;
+
+ DBG("ips_isintr");
+
+ Isr = inb(ha->io_addr + HISR);
+
+ if (Isr == 0xFF)
+ /* ?!?! Nothing really there */
+ return (0);
+
+ if (Isr & SCE)
+ return (1);
+ else if (Isr & (SQO | GHI)) {
+ /* status queue overflow or GHI */
+ /* just clear the interrupt */
+ outb(Isr, ha->io_addr + HISR);
+ }
+
+ return (0);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_wait */
+/* */
+/* Routine Description: */
+/* */
+/* Wait for a command to complete */
+/* */
+/****************************************************************************/
+static int
+ips_wait(ips_ha_t *ha, int time, int intr) {
+ int ret;
+
+ DBG("ips_wait");
+
+ ret = IPS_FAILURE;
+
+ time *= ONE_SEC; /* convert seconds to milliseconds */
+
+ while (time > 0) {
+ if (intr == IPS_INTR_OFF) {
+ if (ha->waitflag == FALSE) {
+ /*
+ * controller generated an interupt to
+ * acknowledge completion of the command
+ * and ips_intr() has serviced the interrupt.
+ */
+ ret = IPS_SUCCESS;
+ break;
+ }
+
+ /*
+ * NOTE: Interrupts are disabled here
+ * On an SMP system interrupts will only
+ * be disabled on one processor.
+ * So, ultimately we still need to set the
+ * "I'm in the interrupt handler flag"
+ */
+ while (test_and_set_bit(IPS_IN_INTR, &ha->flags))
+ UDELAY(1000);
+
+ ips_intr(ha);
+
+ clear_bit(IPS_IN_INTR, &ha->flags);
+
+ } else {
+ if (ha->waitflag == FALSE) {
+ ret = IPS_SUCCESS;
+ break;
+ }
+ }
+
+ UDELAY(1000); /* 1 milisecond */
+ time--;
+ }
+
+ return (ret);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_write_driver_status */
+/* */
+/* Routine Description: */
+/* */
+/* Write OS/Driver version to Page 5 of the nvram on the controller */
+/* */
+/****************************************************************************/
+static int
+ips_write_driver_status(ips_ha_t *ha) {
+ DBG("ips_write_driver_status");
+
+ if (!ips_readwrite_page5(ha, FALSE)) {
+ printk(KERN_WARNING "(%s%d) unable to read NVRAM page 5.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ /* check to make sure the page has a valid */
+ /* signature */
+ if (ha->nvram->signature != NVRAM_PAGE5_SIGNATURE) {
+#if IPS_DEBUG >= 1
+ printk("(%s%d) NVRAM page 5 has an invalid signature: %X.\n",
+ ips_name, ha->host_num, ha->nvram->signature);
+#endif
+ return (1);
+ }
+
+#if IPS_DEBUG >= 2
+ printk("(%s%d) Ad Type: %d, Ad Slot: %d, BIOS: %c%c%c%c %c%c%c%c.\n",
+ ips_name, ha->host_num, ha->nvram->adapter_type, ha->nvram->adapter_slot,
+ ha->nvram->bios_high[0], ha->nvram->bios_high[1],
+ ha->nvram->bios_high[2], ha->nvram->bios_high[3],
+ ha->nvram->bios_low[0], ha->nvram->bios_low[1],
+ ha->nvram->bios_low[2], ha->nvram->bios_low[3]);
+#endif
+
+ /* save controller type */
+ ha->ad_type = ha->nvram->adapter_type;
+
+ /* change values (as needed) */
+ ha->nvram->operating_system = OS_LINUX;
+ strncpy((char *) ha->nvram->driver_high, IPS_VERSION_HIGH, 4);
+ strncpy((char *) ha->nvram->driver_low, IPS_VERSION_LOW, 4);
+
+ /* now update the page */
+ if (!ips_readwrite_page5(ha, TRUE)) {
+ printk(KERN_WARNING "(%s%d) unable to write NVRAM page 5.\n",
+ ips_name, ha->host_num);
+
+ return (0);
+ }
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_read_adapter_status */
+/* */
+/* Routine Description: */
+/* */
+/* Do an Inquiry command to the adapter */
+/* */
+/****************************************************************************/
+static int
+ips_read_adapter_status(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ int ret;
+
+ DBG("ips_read_adapter_status");
+
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_cmd_timeout;
+ scb->cdb[0] = ENQUIRY;
+
+ scb->cmd.basic_io.op_code = ENQUIRY;
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.sg_count = 0;
+ scb->cmd.basic_io.sg_addr = VIRT_TO_BUS(ha->enq);
+ scb->cmd.basic_io.lba = 0;
+ scb->cmd.basic_io.sector_count = 0;
+ scb->cmd.basic_io.log_drv = 0;
+ scb->cmd.basic_io.reserved = 0;
+
+ /* send command */
+ ret = ips_send_wait(ha, scb, ips_cmd_timeout);
+ if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
+ return (0);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_read_subsystem_parameters */
+/* */
+/* Routine Description: */
+/* */
+/* Read subsystem parameters from the adapter */
+/* */
+/****************************************************************************/
+static int
+ips_read_subsystem_parameters(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ int ret;
+
+ DBG("ips_read_subsystem_parameters");
+
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_cmd_timeout;
+ scb->cdb[0] = GET_SUBSYS_PARAM;
+
+ scb->cmd.basic_io.op_code = GET_SUBSYS_PARAM;
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.sg_count = 0;
+ scb->cmd.basic_io.sg_addr = VIRT_TO_BUS(ha->subsys);
+ scb->cmd.basic_io.lba = 0;
+ scb->cmd.basic_io.sector_count = 0;
+ scb->cmd.basic_io.log_drv = 0;
+ scb->cmd.basic_io.reserved = 0;
+
+ /* send command */
+ ret = ips_send_wait(ha, scb, ips_cmd_timeout);
+ if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
+ return (0);
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_read_config */
+/* */
+/* Routine Description: */
+/* */
+/* Read the configuration on the adapter */
+/* */
+/****************************************************************************/
+static int
+ips_read_config(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ int i;
+ int ret;
+
+ DBG("ips_read_config");
+
+ /* set defaults for initiator IDs */
+ ha->conf->init_id[0] = IPS_ADAPTER_ID;
+ for (i = 1; i < 4; i++)
+ ha->conf->init_id[i] = 7;
+
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_cmd_timeout;
+ scb->cdb[0] = READ_NVRAM_CONFIGURATION;
+
+ scb->cmd.basic_io.op_code = READ_NVRAM_CONFIGURATION;
+ scb->cmd.basic_io.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.basic_io.sg_addr = VIRT_TO_BUS(ha->conf);
+
+ /* send command */
+ if (((ret = ips_send_wait(ha, scb, ips_cmd_timeout)) == IPS_FAILURE) ||
+ (ret == IPS_SUCCESS_IMM) ||
+ ((scb->basic_status & GSC_STATUS_MASK) > 1)) {
+
+ memset(ha->conf, 0, sizeof(CONFCMD));
+
+ /* reset initiator IDs */
+ ha->conf->init_id[0] = IPS_ADAPTER_ID;
+ for (i = 1; i < 4; i++)
+ ha->conf->init_id[i] = 7;
+
+ return (0);
+ }
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_readwrite_page5 */
+/* */
+/* Routine Description: */
+/* */
+/* Read the configuration on the adapter */
+/* */
+/****************************************************************************/
+static int
+ips_readwrite_page5(ips_ha_t *ha, int write) {
+ ips_scb_t *scb;
+ int ret;
+
+ DBG("ips_readwrite_page5");
+
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_cmd_timeout;
+ scb->cdb[0] = RW_NVRAM_PAGE;
+
+ scb->cmd.nvram.op_code = RW_NVRAM_PAGE;
+ scb->cmd.nvram.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.nvram.page = 5;
+ scb->cmd.nvram.write = write;
+ scb->cmd.nvram.buffer_addr = VIRT_TO_BUS(ha->nvram);
+ scb->cmd.nvram.reserved = 0;
+ scb->cmd.nvram.reserved2 = 0;
+
+ /* issue the command */
+ if (((ret = ips_send_wait(ha, scb, ips_cmd_timeout)) == IPS_FAILURE) ||
+ (ret == IPS_SUCCESS_IMM) ||
+ ((scb->basic_status & GSC_STATUS_MASK) > 1)) {
+
+ memset(ha->nvram, 0, sizeof(NVRAM_PAGE5));
+
+ return (0);
+ }
+
+ return (1);
+}
+
+/****************************************************************************/
+/* */
+/* Routine Name: ips_clear_adapter */
+/* */
+/* Routine Description: */
+/* */
+/* Clear the stripe lock tables */
+/* */
+/****************************************************************************/
+static int
+ips_clear_adapter(ips_ha_t *ha) {
+ ips_scb_t *scb;
+ int ret;
+
+ DBG("ips_clear_adapter");
+
+ scb = &ha->scbs[ha->max_cmds-1];
+
+ ips_init_scb(ha, scb);
+
+ scb->timeout = ips_reset_timeout;
+ scb->cdb[0] = CONFIG_SYNC;
+
+ scb->cmd.config_sync.op_code = CONFIG_SYNC;
+ scb->cmd.config_sync.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.config_sync.channel = 0;
+ scb->cmd.config_sync.source_target = POCL;
+ scb->cmd.config_sync.reserved = 0;
+ scb->cmd.config_sync.reserved2 = 0;
+ scb->cmd.config_sync.reserved3 = 0;
+
+ /* issue command */
+ ret = ips_send_wait(ha, scb, ips_reset_timeout);
+ if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
+ return (0);
+
+ /* send unlock stripe command */
+ ips_init_scb(ha, scb);
+
+ scb->cdb[0] = GET_ERASE_ERROR_TABLE;
+ scb->timeout = ips_reset_timeout;
+
+ scb->cmd.unlock_stripe.op_code = GET_ERASE_ERROR_TABLE;
+ scb->cmd.unlock_stripe.command_id = IPS_COMMAND_ID(ha, scb);
+ scb->cmd.unlock_stripe.log_drv = 0;
+ scb->cmd.unlock_stripe.control = CSL;
+ scb->cmd.unlock_stripe.reserved = 0;
+ scb->cmd.unlock_stripe.reserved2 = 0;
+ scb->cmd.unlock_stripe.reserved3 = 0;
+
+ /* issue command */
+ ret = ips_send_wait(ha, scb, ips_reset_timeout);
+ if ((ret == IPS_FAILURE) || (ret == IPS_SUCCESS_IMM))
+ return (0);
+
+ return (1);
+}
+
+#if defined (MODULE)
+
+Scsi_Host_Template driver_template = IPS;
+
+ #include "scsi_module.c"
+
+#endif
+
+
+/*
+ * Overrides for Emacs so that we almost follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-indent-level: 2
+ * c-brace-imaginary-offset: 0
+ * c-brace-offset: -2
+ * c-argdecl-indent: 2
+ * c-label-offset: -2
+ * c-continued-statement-offset: 2
+ * c-continued-brace-offset: 0
+ * indent-tabs-mode: nil
+ * tab-width: 8
+ * End:
+ */
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)