/*****************************************************************************/ /* 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 #endif /* MODULE */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef NO_IPS_CMDLINE #include #endif #include "sd.h" #include "scsi.h" #include "hosts.h" #include "ips.h" #include #include #include #include /* * DRIVER_VER */ #define IPS_VERSION_HIGH "1.00" /* MUST be 4 chars */ #define IPS_VERSION_LOW ".00 " /* MUST be 4 chars */ #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_name = "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->resource[0].start; /* 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 ((dev->resource[0].flags & 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; } #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 |= IPS_DATA_IN; if ((scb->scsi_cmd->request.cmd == WRITE) && (SC->request_bufflen)) scb->dcdb.cmd_attribute |= IPS_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 |= IPS_DATA_IN; if ((scb->scsi_cmd->request.cmd == WRITE) && (scb->data_len)) scb->dcdb.cmd_attribute |= IPS_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) { IPS_INQUIRYDATA inq; memset(&inq, 0, sizeof(IPS_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) { IPS_INQUIRYDATA inq; DBG("ips_inquiry"); memset(&inq, 0, sizeof(IPS_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: */