diff options
Diffstat (limited to 'drivers/scsi/aacraid/aachba.c')
| -rw-r--r-- | drivers/scsi/aacraid/aachba.c | 2037 |
1 files changed, 2037 insertions, 0 deletions
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c new file mode 100644 index 0000000..f3fc353 --- /dev/null +++ b/drivers/scsi/aacraid/aachba.c @@ -0,0 +1,2037 @@ +/* + * Adaptec AAC series RAID controller driver + * (c) Copyright 2001 Red Hat Inc. <alan@redhat.com> + * + * based on the old aacraid driver that is.. + * Adaptec aacraid device driver for Linux. + * + * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * + * 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, 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/sched.h> +#include <linux/pci.h> +#include <linux/spinlock.h> +#include <linux/slab.h> +#include <linux/completion.h> +#include <linux/blkdev.h> +#include <asm/semaphore.h> +#include <asm/uaccess.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> + +#include "aacraid.h" + +/* values for inqd_pdt: Peripheral device type in plain English */ +#define INQD_PDT_DA 0x00 /* Direct-access (DISK) device */ +#define INQD_PDT_PROC 0x03 /* Processor device */ +#define INQD_PDT_CHNGR 0x08 /* Changer (jukebox, scsi2) */ +#define INQD_PDT_COMM 0x09 /* Communication device (scsi2) */ +#define INQD_PDT_NOLUN2 0x1f /* Unknown Device (scsi2) */ +#define INQD_PDT_NOLUN 0x7f /* Logical Unit Not Present */ + +#define INQD_PDT_DMASK 0x1F /* Peripheral Device Type Mask */ +#define INQD_PDT_QMASK 0xE0 /* Peripheral Device Qualifer Mask */ + +#define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER)) + +#define MAX_DRIVER_SG_SEGMENT_COUNT 17 + +/* + * Sense codes + */ + +#define SENCODE_NO_SENSE 0x00 +#define SENCODE_END_OF_DATA 0x00 +#define SENCODE_BECOMING_READY 0x04 +#define SENCODE_INIT_CMD_REQUIRED 0x04 +#define SENCODE_PARAM_LIST_LENGTH_ERROR 0x1A +#define SENCODE_INVALID_COMMAND 0x20 +#define SENCODE_LBA_OUT_OF_RANGE 0x21 +#define SENCODE_INVALID_CDB_FIELD 0x24 +#define SENCODE_LUN_NOT_SUPPORTED 0x25 +#define SENCODE_INVALID_PARAM_FIELD 0x26 +#define SENCODE_PARAM_NOT_SUPPORTED 0x26 +#define SENCODE_PARAM_VALUE_INVALID 0x26 +#define SENCODE_RESET_OCCURRED 0x29 +#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x3E +#define SENCODE_INQUIRY_DATA_CHANGED 0x3F +#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x39 +#define SENCODE_DIAGNOSTIC_FAILURE 0x40 +#define SENCODE_INTERNAL_TARGET_FAILURE 0x44 +#define SENCODE_INVALID_MESSAGE_ERROR 0x49 +#define SENCODE_LUN_FAILED_SELF_CONFIG 0x4c +#define SENCODE_OVERLAPPED_COMMAND 0x4E + +/* + * Additional sense codes + */ + +#define ASENCODE_NO_SENSE 0x00 +#define ASENCODE_END_OF_DATA 0x05 +#define ASENCODE_BECOMING_READY 0x01 +#define ASENCODE_INIT_CMD_REQUIRED 0x02 +#define ASENCODE_PARAM_LIST_LENGTH_ERROR 0x00 +#define ASENCODE_INVALID_COMMAND 0x00 +#define ASENCODE_LBA_OUT_OF_RANGE 0x00 +#define ASENCODE_INVALID_CDB_FIELD 0x00 +#define ASENCODE_LUN_NOT_SUPPORTED 0x00 +#define ASENCODE_INVALID_PARAM_FIELD 0x00 +#define ASENCODE_PARAM_NOT_SUPPORTED 0x01 +#define ASENCODE_PARAM_VALUE_INVALID 0x02 +#define ASENCODE_RESET_OCCURRED 0x00 +#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET 0x00 +#define ASENCODE_INQUIRY_DATA_CHANGED 0x03 +#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED 0x00 +#define ASENCODE_DIAGNOSTIC_FAILURE 0x80 +#define ASENCODE_INTERNAL_TARGET_FAILURE 0x00 +#define ASENCODE_INVALID_MESSAGE_ERROR 0x00 +#define ASENCODE_LUN_FAILED_SELF_CONFIG 0x00 +#define ASENCODE_OVERLAPPED_COMMAND 0x00 + +#define BYTE0(x) (unsigned char)(x) +#define BYTE1(x) (unsigned char)((x) >> 8) +#define BYTE2(x) (unsigned char)((x) >> 16) +#define BYTE3(x) (unsigned char)((x) >> 24) + +/*------------------------------------------------------------------------------ + * S T R U C T S / T Y P E D E F S + *----------------------------------------------------------------------------*/ +/* SCSI inquiry data */ +struct inquiry_data { + u8 inqd_pdt; /* Peripheral qualifier | Peripheral Device Type */ + u8 inqd_dtq; /* RMB | Device Type Qualifier */ + u8 inqd_ver; /* ISO version | ECMA version | ANSI-approved version */ + u8 inqd_rdf; /* AENC | TrmIOP | Response data format */ + u8 inqd_len; /* Additional length (n-4) */ + u8 inqd_pad1[2];/* Reserved - must be zero */ + u8 inqd_pad2; /* RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */ + u8 inqd_vid[8]; /* Vendor ID */ + u8 inqd_pid[16];/* Product ID */ + u8 inqd_prl[4]; /* Product Revision Level */ +}; + +/* + * M O D U L E G L O B A L S + */ + +static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap); +static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg); +static int aac_send_srb_fib(struct scsi_cmnd* scsicmd); +#ifdef AAC_DETAILED_STATUS_INFO +static char *aac_get_status_string(u32 status); +#endif + +/* + * Non dasd selection is handled entirely in aachba now + */ + +static int nondasd = -1; +static int dacmode = -1; + +static int commit = -1; + +module_param(nondasd, int, 0); +MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on"); +module_param(dacmode, int, 0); +MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on"); +module_param(commit, int, 0); +MODULE_PARM_DESC(commit, "Control whether a COMMIT_CONFIG is issued to the adapter for foreign arrays.\nThis is typically needed in systems that do not have a BIOS. 0=off, 1=on"); + +/** + * aac_get_config_status - check the adapter configuration + * @common: adapter to query + * + * Query config status, and commit the configuration if needed. + */ +int aac_get_config_status(struct aac_dev *dev) +{ + int status = 0; + struct fib * fibptr; + + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + fib_init(fibptr); + { + struct aac_get_config_status *dinfo; + dinfo = (struct aac_get_config_status *) fib_data(fibptr); + + dinfo->command = cpu_to_le32(VM_ContainerConfig); + dinfo->type = cpu_to_le32(CT_GET_CONFIG_STATUS); + dinfo->count = cpu_to_le32(sizeof(((struct aac_get_config_status_resp *)NULL)->data)); + } + + status = fib_send(ContainerCommand, + fibptr, + sizeof (struct aac_get_config_status), + FsaNormal, + 1, 1, + NULL, NULL); + if (status < 0 ) { + printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n"); + } else { + struct aac_get_config_status_resp *reply + = (struct aac_get_config_status_resp *) fib_data(fibptr); + dprintk((KERN_WARNING + "aac_get_config_status: response=%d status=%d action=%d\n", + le32_to_cpu(reply->response), + le32_to_cpu(reply->status), + le32_to_cpu(reply->data.action))); + if ((le32_to_cpu(reply->response) != ST_OK) || + (le32_to_cpu(reply->status) != CT_OK) || + (le32_to_cpu(reply->data.action) > CFACT_PAUSE)) { + printk(KERN_WARNING "aac_get_config_status: Will not issue the Commit Configuration\n"); + status = -EINVAL; + } + } + fib_complete(fibptr); + /* Send a CT_COMMIT_CONFIG to enable discovery of devices */ + if (status >= 0) { + if (commit == 1) { + struct aac_commit_config * dinfo; + fib_init(fibptr); + dinfo = (struct aac_commit_config *) fib_data(fibptr); + + dinfo->command = cpu_to_le32(VM_ContainerConfig); + dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG); + + status = fib_send(ContainerCommand, + fibptr, + sizeof (struct aac_commit_config), + FsaNormal, + 1, 1, + NULL, NULL); + fib_complete(fibptr); + } else if (commit == 0) { + printk(KERN_WARNING + "aac_get_config_status: Foreign device configurations are being ignored\n"); + } + } + fib_free(fibptr); + return status; +} + +/** + * aac_get_containers - list containers + * @common: adapter to probe + * + * Make a list of all containers on this controller + */ +int aac_get_containers(struct aac_dev *dev) +{ + struct fsa_dev_info *fsa_dev_ptr; + u32 index; + int status = 0; + struct fib * fibptr; + unsigned instance; + struct aac_get_container_count *dinfo; + struct aac_get_container_count_resp *dresp; + int maximum_num_containers = MAXIMUM_NUM_CONTAINERS; + + instance = dev->scsi_host_ptr->unique_id; + + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + fib_init(fibptr); + dinfo = (struct aac_get_container_count *) fib_data(fibptr); + dinfo->command = cpu_to_le32(VM_ContainerConfig); + dinfo->type = cpu_to_le32(CT_GET_CONTAINER_COUNT); + + status = fib_send(ContainerCommand, + fibptr, + sizeof (struct aac_get_container_count), + FsaNormal, + 1, 1, + NULL, NULL); + if (status >= 0) { + dresp = (struct aac_get_container_count_resp *)fib_data(fibptr); + maximum_num_containers = le32_to_cpu(dresp->ContainerSwitchEntries); + fib_complete(fibptr); + } + + if (maximum_num_containers < MAXIMUM_NUM_CONTAINERS) + maximum_num_containers = MAXIMUM_NUM_CONTAINERS; + + fsa_dev_ptr = (struct fsa_dev_info *) kmalloc( + sizeof(*fsa_dev_ptr) * maximum_num_containers, GFP_KERNEL); + if (!fsa_dev_ptr) { + fib_free(fibptr); + return -ENOMEM; + } + memset(fsa_dev_ptr, 0, sizeof(*fsa_dev_ptr) * maximum_num_containers); + + dev->fsa_dev = fsa_dev_ptr; + dev->maximum_num_containers = maximum_num_containers; + + for (index = 0; index < dev->maximum_num_containers; index++) { + struct aac_query_mount *dinfo; + struct aac_mount *dresp; + + fsa_dev_ptr[index].devname[0] = '\0'; + + fib_init(fibptr); + dinfo = (struct aac_query_mount *) fib_data(fibptr); + + dinfo->command = cpu_to_le32(VM_NameServe); + dinfo->count = cpu_to_le32(index); + dinfo->type = cpu_to_le32(FT_FILESYS); + + status = fib_send(ContainerCommand, + fibptr, + sizeof (struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL); + if (status < 0 ) { + printk(KERN_WARNING "aac_get_containers: SendFIB failed.\n"); + break; + } + dresp = (struct aac_mount *)fib_data(fibptr); + + dprintk ((KERN_DEBUG + "VM_NameServe cid=%d status=%d vol=%d state=%d cap=%u\n", + (int)index, (int)le32_to_cpu(dresp->status), + (int)le32_to_cpu(dresp->mnt[0].vol), + (int)le32_to_cpu(dresp->mnt[0].state), + (unsigned)le32_to_cpu(dresp->mnt[0].capacity))); + if ((le32_to_cpu(dresp->status) == ST_OK) && + (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) && + (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) { + fsa_dev_ptr[index].valid = 1; + fsa_dev_ptr[index].type = le32_to_cpu(dresp->mnt[0].vol); + fsa_dev_ptr[index].size = le32_to_cpu(dresp->mnt[0].capacity); + if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) + fsa_dev_ptr[index].ro = 1; + } + fib_complete(fibptr); + /* + * If there are no more containers, then stop asking. + */ + if ((index + 1) >= le32_to_cpu(dresp->count)){ + break; + } + } + fib_free(fibptr); + return status; +} + +static void aac_io_done(struct scsi_cmnd * scsicmd) +{ + unsigned long cpu_flags; + struct Scsi_Host *host = scsicmd->device->host; + spin_lock_irqsave(host->host_lock, cpu_flags); + scsicmd->scsi_done(scsicmd); + spin_unlock_irqrestore(host->host_lock, cpu_flags); +} + +static void get_container_name_callback(void *context, struct fib * fibptr) +{ + struct aac_get_name_resp * get_name_reply; + struct scsi_cmnd * scsicmd; + + scsicmd = (struct scsi_cmnd *) context; + + dprintk((KERN_DEBUG "get_container_name_callback[cpu %d]: t = %ld.\n", smp_processor_id(), jiffies)); + if (fibptr == NULL) + BUG(); + + get_name_reply = (struct aac_get_name_resp *) fib_data(fibptr); + /* Failure is irrelevant, using default value instead */ + if ((le32_to_cpu(get_name_reply->status) == CT_OK) + && (get_name_reply->data[0] != '\0')) { + int count; + char * dp; + char * sp = get_name_reply->data; + sp[sizeof(((struct aac_get_name_resp *)NULL)->data)-1] = '\0'; + while (*sp == ' ') + ++sp; + count = sizeof(((struct inquiry_data *)NULL)->inqd_pid); + dp = ((struct inquiry_data *)scsicmd->request_buffer)->inqd_pid; + if (*sp) do { + *dp++ = (*sp) ? *sp++ : ' '; + } while (--count > 0); + } + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + + fib_complete(fibptr); + fib_free(fibptr); + aac_io_done(scsicmd); +} + +/** + * aac_get_container_name - get container name, none blocking. + */ +static int aac_get_container_name(struct scsi_cmnd * scsicmd, int cid) +{ + int status; + struct aac_get_name *dinfo; + struct fib * cmd_fibcontext; + struct aac_dev * dev; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + + if (!(cmd_fibcontext = fib_alloc(dev))) + return -ENOMEM; + + fib_init(cmd_fibcontext); + dinfo = (struct aac_get_name *) fib_data(cmd_fibcontext); + + dinfo->command = cpu_to_le32(VM_ContainerConfig); + dinfo->type = cpu_to_le32(CT_READ_NAME); + dinfo->cid = cpu_to_le32(cid); + dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data)); + + status = fib_send(ContainerCommand, + cmd_fibcontext, + sizeof (struct aac_get_name), + FsaNormal, + 0, 1, + (fib_callback) get_container_name_callback, + (void *) scsicmd); + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + return 0; + + printk(KERN_WARNING "aac_get_container_name: fib_send failed with status: %d.\n", status); + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return -1; +} + +/** + * probe_container - query a logical volume + * @dev: device to query + * @cid: container identifier + * + * Queries the controller about the given volume. The volume information + * is updated in the struct fsa_dev_info structure rather than returned. + */ + +static int probe_container(struct aac_dev *dev, int cid) +{ + struct fsa_dev_info *fsa_dev_ptr; + int status; + struct aac_query_mount *dinfo; + struct aac_mount *dresp; + struct fib * fibptr; + unsigned instance; + + fsa_dev_ptr = dev->fsa_dev; + instance = dev->scsi_host_ptr->unique_id; + + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + fib_init(fibptr); + + dinfo = (struct aac_query_mount *)fib_data(fibptr); + + dinfo->command = cpu_to_le32(VM_NameServe); + dinfo->count = cpu_to_le32(cid); + dinfo->type = cpu_to_le32(FT_FILESYS); + + status = fib_send(ContainerCommand, + fibptr, + sizeof(struct aac_query_mount), + FsaNormal, + 1, 1, + NULL, NULL); + if (status < 0) { + printk(KERN_WARNING "aacraid: probe_containers query failed.\n"); + goto error; + } + + dresp = (struct aac_mount *) fib_data(fibptr); + + if ((le32_to_cpu(dresp->status) == ST_OK) && + (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE) && + (le32_to_cpu(dresp->mnt[0].state) != FSCS_HIDDEN)) { + fsa_dev_ptr[cid].valid = 1; + fsa_dev_ptr[cid].type = le32_to_cpu(dresp->mnt[0].vol); + fsa_dev_ptr[cid].size = le32_to_cpu(dresp->mnt[0].capacity); + if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY) + fsa_dev_ptr[cid].ro = 1; + } + +error: + fib_complete(fibptr); + fib_free(fibptr); + + return status; +} + +/* Local Structure to set SCSI inquiry data strings */ +struct scsi_inq { + char vid[8]; /* Vendor ID */ + char pid[16]; /* Product ID */ + char prl[4]; /* Product Revision Level */ +}; + +/** + * InqStrCopy - string merge + * @a: string to copy from + * @b: string to copy to + * + * Copy a String from one location to another + * without copying \0 + */ + +static void inqstrcpy(char *a, char *b) +{ + + while(*a != (char)0) + *b++ = *a++; +} + +static char *container_types[] = { + "None", + "Volume", + "Mirror", + "Stripe", + "RAID5", + "SSRW", + "SSRO", + "Morph", + "Legacy", + "RAID4", + "RAID10", + "RAID00", + "V-MIRRORS", + "PSEUDO R4", + "RAID50", + "Unknown" +}; + + + +/* Function: setinqstr + * + * Arguments: [1] pointer to void [1] int + * + * Purpose: Sets SCSI inquiry data strings for vendor, product + * and revision level. Allows strings to be set in platform dependant + * files instead of in OS dependant driver source. + */ + +static void setinqstr(int devtype, void *data, int tindex) +{ + struct scsi_inq *str; + struct aac_driver_ident *mp; + + mp = aac_get_driver_ident(devtype); + + str = (struct scsi_inq *)(data); /* cast data to scsi inq block */ + + inqstrcpy (mp->vname, str->vid); + inqstrcpy (mp->model, str->pid); /* last six chars reserved for vol type */ + + if (tindex < (sizeof(container_types)/sizeof(char *))){ + char *findit = str->pid; + + for ( ; *findit != ' '; findit++); /* walk till we find a space */ + /* RAID is superfluous in the context of a RAID device */ + if (memcmp(findit-4, "RAID", 4) == 0) + *(findit -= 4) = ' '; + inqstrcpy (container_types[tindex], findit + 1); + } + inqstrcpy ("V1.0", str->prl); +} + +void set_sense(u8 *sense_buf, u8 sense_key, u8 sense_code, + u8 a_sense_code, u8 incorrect_length, + u8 bit_pointer, u16 field_pointer, + u32 residue) +{ + sense_buf[0] = 0xF0; /* Sense data valid, err code 70h (current error) */ + sense_buf[1] = 0; /* Segment number, always zero */ + + if (incorrect_length) { + sense_buf[2] = sense_key | 0x20;/* Set ILI bit | sense key */ + sense_buf[3] = BYTE3(residue); + sense_buf[4] = BYTE2(residue); + sense_buf[5] = BYTE1(residue); + sense_buf[6] = BYTE0(residue); + } else + sense_buf[2] = sense_key; /* Sense key */ + + if (sense_key == ILLEGAL_REQUEST) + sense_buf[7] = 10; /* Additional sense length */ + else + sense_buf[7] = 6; /* Additional sense length */ + + sense_buf[12] = sense_code; /* Additional sense code */ + sense_buf[13] = a_sense_code; /* Additional sense code qualifier */ + if (sense_key == ILLEGAL_REQUEST) { + sense_buf[15] = 0; + + if (sense_code == SENCODE_INVALID_PARAM_FIELD) + sense_buf[15] = 0x80;/* Std sense key specific field */ + /* Illegal parameter is in the parameter block */ + + if (sense_code == SENCODE_INVALID_CDB_FIELD) + sense_buf[15] = 0xc0;/* Std sense key specific field */ + /* Illegal parameter is in the CDB block */ + sense_buf[15] |= bit_pointer; + sense_buf[16] = field_pointer >> 8; /* MSB */ + sense_buf[17] = field_pointer; /* LSB */ + } +} + +int aac_get_adapter_info(struct aac_dev* dev) +{ + struct fib* fibptr; + struct aac_adapter_info* info; + int rcode; + u32 tmp; + if (!(fibptr = fib_alloc(dev))) + return -ENOMEM; + + fib_init(fibptr); + info = (struct aac_adapter_info*) fib_data(fibptr); + + memset(info,0,sizeof(struct aac_adapter_info)); + + rcode = fib_send(RequestAdapterInfo, + fibptr, + sizeof(struct aac_adapter_info), + FsaNormal, + 1, 1, + NULL, + NULL); + + memcpy(&dev->adapter_info, info, sizeof(struct aac_adapter_info)); + + tmp = le32_to_cpu(dev->adapter_info.kernelrev); + printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d]\n", + dev->name, + dev->id, + tmp>>24, + (tmp>>16)&0xff, + tmp&0xff, + le32_to_cpu(dev->adapter_info.kernelbuild)); + tmp = le32_to_cpu(dev->adapter_info.monitorrev); + printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n", + dev->name, dev->id, + tmp>>24,(tmp>>16)&0xff,tmp&0xff, + le32_to_cpu(dev->adapter_info.monitorbuild)); + tmp = le32_to_cpu(dev->adapter_info.biosrev); + printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n", + dev->name, dev->id, + tmp>>24,(tmp>>16)&0xff,tmp&0xff, + le32_to_cpu(dev->adapter_info.biosbuild)); + if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0) + printk(KERN_INFO "%s%d: serial %x\n", + dev->name, dev->id, + le32_to_cpu(dev->adapter_info.serial[0])); + + dev->nondasd_support = 0; + dev->raid_scsi_mode = 0; + if(dev->adapter_info.options & AAC_OPT_NONDASD){ + dev->nondasd_support = 1; + } + + /* + * If the firmware supports ROMB RAID/SCSI mode and we are currently + * in RAID/SCSI mode, set the flag. For now if in this mode we will + * force nondasd support on. If we decide to allow the non-dasd flag + * additional changes changes will have to be made to support + * RAID/SCSI. the function aac_scsi_cmd in this module will have to be + * changed to support the new dev->raid_scsi_mode flag instead of + * leaching off of the dev->nondasd_support flag. Also in linit.c the + * function aac_detect will have to be modified where it sets up the + * max number of channels based on the aac->nondasd_support flag only. + */ + if ((dev->adapter_info.options & AAC_OPT_SCSI_MANAGED) && + (dev->adapter_info.options & AAC_OPT_RAID_SCSI_MODE)) { + dev->nondasd_support = 1; + dev->raid_scsi_mode = 1; + } + if (dev->raid_scsi_mode != 0) + printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n", + dev->name, dev->id); + + if(nondasd != -1) { + dev->nondasd_support = (nondasd!=0); + } + if(dev->nondasd_support != 0){ + printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id); + } + + dev->dac_support = 0; + if( (sizeof(dma_addr_t) > 4) && (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)){ + printk(KERN_INFO "%s%d: 64bit support enabled.\n", dev->name, dev->id); + dev->dac_support = 1; + } + + if(dacmode != -1) { + dev->dac_support = (dacmode!=0); + } + if(dev->dac_support != 0) { + if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL) && + !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFFFFFFFFFULL)) { + printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n", + dev->name, dev->id); + } else if (!pci_set_dma_mask(dev->pdev, 0xFFFFFFFFULL) && + !pci_set_consistent_dma_mask(dev->pdev, 0xFFFFFFFFULL)) { + printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n", + dev->name, dev->id); + dev->dac_support = 0; + } else { + printk(KERN_WARNING"%s%d: No suitable DMA available.\n", + dev->name, dev->id); + rcode = -ENOMEM; + } + } + + fib_complete(fibptr); + fib_free(fibptr); + + return rcode; +} + + +static void read_callback(void *context, struct fib * fibptr) +{ + struct aac_dev *dev; + struct aac_read_reply *readreply; + struct scsi_cmnd *scsicmd; + u32 lba; + u32 cid; + + scsicmd = (struct scsi_cmnd *) context; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun); + + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies)); + + if (fibptr == NULL) + BUG(); + + if(scsicmd->use_sg) + pci_unmap_sg(dev->pdev, + (struct scatterlist *)scsicmd->buffer, + scsicmd->use_sg, + scsicmd->sc_data_direction); + else if(scsicmd->request_bufflen) + pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, + scsicmd->request_bufflen, + scsicmd->sc_data_direction); + readreply = (struct aac_read_reply *)fib_data(fibptr); + if (le32_to_cpu(readreply->status) == ST_OK) + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + else { + printk(KERN_WARNING "read_callback: read failed, status = %d\n", + le32_to_cpu(readreply->status)); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + HARDWARE_ERROR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer)) + ? sizeof(scsicmd->sense_buffer) + : sizeof(dev->fsa_dev[cid].sense_data)); + } + fib_complete(fibptr); + fib_free(fibptr); + + aac_io_done(scsicmd); +} + +static void write_callback(void *context, struct fib * fibptr) +{ + struct aac_dev *dev; + struct aac_write_reply *writereply; + struct scsi_cmnd *scsicmd; + u32 lba; + u32 cid; + + scsicmd = (struct scsi_cmnd *) context; + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun); + + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies)); + if (fibptr == NULL) + BUG(); + + if(scsicmd->use_sg) + pci_unmap_sg(dev->pdev, + (struct scatterlist *)scsicmd->buffer, + scsicmd->use_sg, + scsicmd->sc_data_direction); + else if(scsicmd->request_bufflen) + pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, + scsicmd->request_bufflen, + scsicmd->sc_data_direction); + + writereply = (struct aac_write_reply *) fib_data(fibptr); + if (le32_to_cpu(writereply->status) == ST_OK) + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + else { + printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + HARDWARE_ERROR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + sizeof(struct sense_data)); + } + + fib_complete(fibptr); + fib_free(fibptr); + aac_io_done(scsicmd); +} + +int aac_read(struct scsi_cmnd * scsicmd, int cid) +{ + u32 lba; + u32 count; + int status; + + u16 fibsize; + struct aac_dev *dev; + struct fib * cmd_fibcontext; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + /* + * Get block address and transfer length + */ + if (scsicmd->cmnd[0] == READ_6) /* 6 byte command */ + { + dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", cid)); + + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + count = scsicmd->cmnd[4]; + + if (count == 0) + count = 256; + } else { + dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", cid)); + + lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8]; + } + dprintk((KERN_DEBUG "aac_read[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies)); + /* + * Alocate and initialize a Fib + */ + if (!(cmd_fibcontext = fib_alloc(dev))) { + return -1; + } + + fib_init(cmd_fibcontext); + + if(dev->dac_support == 1) { + struct aac_read64 *readcmd; + readcmd = (struct aac_read64 *) fib_data(cmd_fibcontext); + readcmd->command = cpu_to_le32(VM_CtHostRead64); + readcmd->cid = cpu_to_le16(cid); + readcmd->sector_count = cpu_to_le16(count); + readcmd->block = cpu_to_le32(lba); + readcmd->pad = 0; + readcmd->flags = 0; + + aac_build_sg64(scsicmd, &readcmd->sg); + fibsize = sizeof(struct aac_read64) + + ((le32_to_cpu(readcmd->sg.count) - 1) * + sizeof (struct sgentry64)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + /* + * Now send the Fib to the adapter + */ + status = fib_send(ContainerCommand64, + cmd_fibcontext, + fibsize, + FsaNormal, + 0, 1, + (fib_callback) read_callback, + (void *) scsicmd); + } else { + struct aac_read *readcmd; + readcmd = (struct aac_read *) fib_data(cmd_fibcontext); + readcmd->command = cpu_to_le32(VM_CtBlockRead); + readcmd->cid = cpu_to_le32(cid); + readcmd->block = cpu_to_le32(lba); + readcmd->count = cpu_to_le32(count * 512); + + if (count * 512 > (64 * 1024)) + BUG(); + + aac_build_sg(scsicmd, &readcmd->sg); + fibsize = sizeof(struct aac_read) + + ((le32_to_cpu(readcmd->sg.count) - 1) * + sizeof (struct sgentry)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + /* + * Now send the Fib to the adapter + */ + status = fib_send(ContainerCommand, + cmd_fibcontext, + fibsize, + FsaNormal, + 0, 1, + (fib_callback) read_callback, + (void *) scsicmd); + } + + + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + return 0; + + printk(KERN_WARNING "aac_read: fib_send failed with status: %d.\n", status); + /* + * For some reason, the Fib didn't queue, return QUEUE_FULL + */ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL; + aac_io_done(scsicmd); + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return 0; +} + +static int aac_write(struct scsi_cmnd * scsicmd, int cid) +{ + u32 lba; + u32 count; + int status; + u16 fibsize; + struct aac_dev *dev; + struct fib * cmd_fibcontext; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + /* + * Get block address and transfer length + */ + if (scsicmd->cmnd[0] == WRITE_6) /* 6 byte command */ + { + lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3]; + count = scsicmd->cmnd[4]; + if (count == 0) + count = 256; + } else { + dprintk((KERN_DEBUG "aachba: received a write(10) command on id %d.\n", cid)); + lba = (scsicmd->cmnd[2] << 24) | (scsicmd->cmnd[3] << 16) | (scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5]; + count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8]; + } + dprintk((KERN_DEBUG "aac_write[cpu %d]: lba = %u, t = %ld.\n", + smp_processor_id(), (unsigned long long)lba, jiffies)); + /* + * Allocate and initialize a Fib then setup a BlockWrite command + */ + if (!(cmd_fibcontext = fib_alloc(dev))) { + scsicmd->result = DID_ERROR << 16; + aac_io_done(scsicmd); + return 0; + } + fib_init(cmd_fibcontext); + + if(dev->dac_support == 1) { + struct aac_write64 *writecmd; + writecmd = (struct aac_write64 *) fib_data(cmd_fibcontext); + writecmd->command = cpu_to_le32(VM_CtHostWrite64); + writecmd->cid = cpu_to_le16(cid); + writecmd->sector_count = cpu_to_le16(count); + writecmd->block = cpu_to_le32(lba); + writecmd->pad = 0; + writecmd->flags = 0; + + aac_build_sg64(scsicmd, &writecmd->sg); + fibsize = sizeof(struct aac_write64) + + ((le32_to_cpu(writecmd->sg.count) - 1) * + sizeof (struct sgentry64)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + /* + * Now send the Fib to the adapter + */ + status = fib_send(ContainerCommand64, + cmd_fibcontext, + fibsize, + FsaNormal, + 0, 1, + (fib_callback) write_callback, + (void *) scsicmd); + } else { + struct aac_write *writecmd; + writecmd = (struct aac_write *) fib_data(cmd_fibcontext); + writecmd->command = cpu_to_le32(VM_CtBlockWrite); + writecmd->cid = cpu_to_le32(cid); + writecmd->block = cpu_to_le32(lba); + writecmd->count = cpu_to_le32(count * 512); + writecmd->sg.count = cpu_to_le32(1); + /* ->stable is not used - it did mean which type of write */ + + if (count * 512 > (64 * 1024)) { + BUG(); + } + + aac_build_sg(scsicmd, &writecmd->sg); + fibsize = sizeof(struct aac_write) + + ((le32_to_cpu(writecmd->sg.count) - 1) * + sizeof (struct sgentry)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + /* + * Now send the Fib to the adapter + */ + status = fib_send(ContainerCommand, + cmd_fibcontext, + fibsize, + FsaNormal, + 0, 1, + (fib_callback) write_callback, + (void *) scsicmd); + } + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + { + dprintk("write queued.\n"); + return 0; + } + + printk(KERN_WARNING "aac_write: fib_send failed with status: %d\n", status); + /* + * For some reason, the Fib didn't queue, return QUEUE_FULL + */ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_TASK_SET_FULL; + aac_io_done(scsicmd); + + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return 0; +} + +static void synchronize_callback(void *context, struct fib *fibptr) +{ + struct aac_synchronize_reply *synchronizereply; + struct scsi_cmnd *cmd; + + cmd = context; + + dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n", + smp_processor_id(), jiffies)); + BUG_ON(fibptr == NULL); + + + synchronizereply = fib_data(fibptr); + if (le32_to_cpu(synchronizereply->status) == CT_OK) + cmd->result = DID_OK << 16 | + COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + else { + struct scsi_device *sdev = cmd->device; + struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata; + u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun); + printk(KERN_WARNING + "synchronize_callback: synchronize failed, status = %d\n", + le32_to_cpu(synchronizereply->status)); + cmd->result = DID_OK << 16 | + COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *)&dev->fsa_dev[cid].sense_data, + HARDWARE_ERROR, + SENCODE_INTERNAL_TARGET_FAILURE, + ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0, + 0, 0); + memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + min(sizeof(dev->fsa_dev[cid].sense_data), + sizeof(cmd->sense_buffer))); + } + + fib_complete(fibptr); + fib_free(fibptr); + aac_io_done(cmd); +} + +static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid) +{ + int status; + struct fib *cmd_fibcontext; + struct aac_synchronize *synchronizecmd; + struct scsi_cmnd *cmd; + struct scsi_device *sdev = scsicmd->device; + int active = 0; + unsigned long flags; + + /* + * Wait for all commands to complete to this specific + * target (block). + */ + spin_lock_irqsave(&sdev->list_lock, flags); + list_for_each_entry(cmd, &sdev->cmd_list, list) + if (cmd != scsicmd && cmd->serial_number != 0) { + ++active; + break; + } + + spin_unlock_irqrestore(&sdev->list_lock, flags); + + /* + * Yield the processor (requeue for later) + */ + if (active) + return SCSI_MLQUEUE_DEVICE_BUSY; + + /* + * Alocate and initialize a Fib + */ + if (!(cmd_fibcontext = + fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) + return SCSI_MLQUEUE_HOST_BUSY; + + fib_init(cmd_fibcontext); + + synchronizecmd = fib_data(cmd_fibcontext); + synchronizecmd->command = cpu_to_le32(VM_ContainerConfig); + synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE); + synchronizecmd->cid = cpu_to_le32(cid); + synchronizecmd->count = + cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data)); + + /* + * Now send the Fib to the adapter + */ + status = fib_send(ContainerCommand, + cmd_fibcontext, + sizeof(struct aac_synchronize), + FsaNormal, + 0, 1, + (fib_callback)synchronize_callback, + (void *)scsicmd); + + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS) + return 0; + + printk(KERN_WARNING + "aac_synchronize: fib_send failed with status: %d.\n", status); + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + return SCSI_MLQUEUE_HOST_BUSY; +} + +/** + * aac_scsi_cmd() - Process SCSI command + * @scsicmd: SCSI command block + * + * Emulate a SCSI command and queue the required request for the + * aacraid firmware. + */ + +int aac_scsi_cmd(struct scsi_cmnd * scsicmd) +{ + u32 cid = 0; + struct Scsi_Host *host = scsicmd->device->host; + struct aac_dev *dev = (struct aac_dev *)host->hostdata; + struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev; + int cardtype = dev->cardtype; + int ret; + + /* + * If the bus, id or lun is out of range, return fail + * Test does not apply to ID 16, the pseudo id for the controller + * itself. + */ + if (scsicmd->device->id != host->this_id) { + if ((scsicmd->device->channel == 0) ){ + if( (scsicmd->device->id >= dev->maximum_num_containers) || (scsicmd->device->lun != 0)){ + scsicmd->result = DID_NO_CONNECT << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun); + + /* + * If the target container doesn't exist, it may have + * been newly created + */ + if ((fsa_dev_ptr[cid].valid & 1) == 0) { + switch (scsicmd->cmnd[0]) { + case INQUIRY: + case READ_CAPACITY: + case TEST_UNIT_READY: + spin_unlock_irq(host->host_lock); + probe_container(dev, cid); + spin_lock_irq(host->host_lock); + if (fsa_dev_ptr[cid].valid == 0) { + scsicmd->result = DID_NO_CONNECT << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + default: + break; + } + } + /* + * If the target container still doesn't exist, + * return failure + */ + if (fsa_dev_ptr[cid].valid == 0) { + scsicmd->result = DID_BAD_TARGET << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + } else { /* check for physical non-dasd devices */ + if(dev->nondasd_support == 1){ + return aac_send_srb_fib(scsicmd); + } else { + scsicmd->result = DID_NO_CONNECT << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + } + } + /* + * else Command for the controller itself + */ + else if ((scsicmd->cmnd[0] != INQUIRY) && /* only INQUIRY & TUR cmnd supported for controller */ + (scsicmd->cmnd[0] != TEST_UNIT_READY)) + { + dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0])); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + ILLEGAL_REQUEST, + SENCODE_INVALID_COMMAND, + ASENCODE_INVALID_COMMAND, 0, 0, 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer)) + ? sizeof(scsicmd->sense_buffer) + : sizeof(dev->fsa_dev[cid].sense_data)); + scsicmd->scsi_done(scsicmd); + return 0; + } + + + /* Handle commands here that don't really require going out to the adapter */ + switch (scsicmd->cmnd[0]) { + case INQUIRY: + { + struct inquiry_data *inq_data_ptr; + + dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->device->id)); + inq_data_ptr = (struct inquiry_data *)scsicmd->request_buffer; + memset(inq_data_ptr, 0, sizeof (struct inquiry_data)); + + inq_data_ptr->inqd_ver = 2; /* claim compliance to SCSI-2 */ + inq_data_ptr->inqd_dtq = 0x80; /* set RMB bit to one indicating that the medium is removable */ + inq_data_ptr->inqd_rdf = 2; /* A response data format value of two indicates that the data shall be in the format specified in SCSI-2 */ + inq_data_ptr->inqd_len = 31; + /*Format for "pad2" is RelAdr | WBus32 | WBus16 | Sync | Linked |Reserved| CmdQue | SftRe */ + inq_data_ptr->inqd_pad2= 0x32 ; /*WBus16|Sync|CmdQue */ + /* + * Set the Vendor, Product, and Revision Level + * see: <vendor>.c i.e. aac.c + */ + if (scsicmd->device->id == host->this_id) { + setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), (sizeof(container_types)/sizeof(char *))); + inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + return 0; + } + setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr[cid].type); + inq_data_ptr->inqd_pdt = INQD_PDT_DA; /* Direct/random access device */ + return aac_get_container_name(scsicmd, cid); + } + case READ_CAPACITY: + { + u32 capacity; + char *cp; + + dprintk((KERN_DEBUG "READ CAPACITY command.\n")); + if (fsa_dev_ptr[cid].size <= 0x100000000LL) + capacity = fsa_dev_ptr[cid].size - 1; + else + capacity = (u32)-1; + cp = scsicmd->request_buffer; + cp[0] = (capacity >> 24) & 0xff; + cp[1] = (capacity >> 16) & 0xff; + cp[2] = (capacity >> 8) & 0xff; + cp[3] = (capacity >> 0) & 0xff; + cp[4] = 0; + cp[5] = 0; + cp[6] = 2; + cp[7] = 0; + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + + return 0; + } + + case MODE_SENSE: + { + char *mode_buf; + + dprintk((KERN_DEBUG "MODE SENSE command.\n")); + mode_buf = scsicmd->request_buffer; + mode_buf[0] = 3; /* Mode data length */ + mode_buf[1] = 0; /* Medium type - default */ + mode_buf[2] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */ + mode_buf[3] = 0; /* Block descriptor length */ + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + + return 0; + } + case MODE_SENSE_10: + { + char *mode_buf; + + dprintk((KERN_DEBUG "MODE SENSE 10 byte command.\n")); + mode_buf = scsicmd->request_buffer; + mode_buf[0] = 0; /* Mode data length (MSB) */ + mode_buf[1] = 6; /* Mode data length (LSB) */ + mode_buf[2] = 0; /* Medium type - default */ + mode_buf[3] = 0; /* Device-specific param, bit 8: 0/1 = write enabled/protected */ + mode_buf[4] = 0; /* reserved */ + mode_buf[5] = 0; /* reserved */ + mode_buf[6] = 0; /* Block descriptor length (MSB) */ + mode_buf[7] = 0; /* Block descriptor length (LSB) */ + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + + return 0; + } + case REQUEST_SENSE: + dprintk((KERN_DEBUG "REQUEST SENSE command.\n")); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, sizeof (struct sense_data)); + memset(&dev->fsa_dev[cid].sense_data, 0, sizeof (struct sense_data)); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + return 0; + + case ALLOW_MEDIUM_REMOVAL: + dprintk((KERN_DEBUG "LOCK command.\n")); + if (scsicmd->cmnd[4]) + fsa_dev_ptr[cid].locked = 1; + else + fsa_dev_ptr[cid].locked = 0; + + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + return 0; + /* + * These commands are all No-Ops + */ + case TEST_UNIT_READY: + case RESERVE: + case RELEASE: + case REZERO_UNIT: + case REASSIGN_BLOCKS: + case SEEK_10: + case START_STOP: + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD; + scsicmd->scsi_done(scsicmd); + return 0; + } + + switch (scsicmd->cmnd[0]) + { + case READ_6: + case READ_10: + /* + * Hack to keep track of ordinal number of the device that + * corresponds to a container. Needed to convert + * containers to /dev/sd device names + */ + + spin_unlock_irq(host->host_lock); + if (scsicmd->request->rq_disk) + memcpy(fsa_dev_ptr[cid].devname, + scsicmd->request->rq_disk->disk_name, + 8); + + ret = aac_read(scsicmd, cid); + spin_lock_irq(host->host_lock); + return ret; + + case WRITE_6: + case WRITE_10: + spin_unlock_irq(host->host_lock); + ret = aac_write(scsicmd, cid); + spin_lock_irq(host->host_lock); + return ret; + + case SYNCHRONIZE_CACHE: + /* Issue FIB to tell Firmware to flush it's cache */ + return aac_synchronize(scsicmd, cid); + + default: + /* + * Unhandled commands + */ + printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]); + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + set_sense((u8 *) &dev->fsa_dev[cid].sense_data, + ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND, + ASENCODE_INVALID_COMMAND, 0, 0, 0, 0); + memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data, + (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer)) + ? sizeof(scsicmd->sense_buffer) + : sizeof(dev->fsa_dev[cid].sense_data)); + scsicmd->scsi_done(scsicmd); + return 0; + } +} + +static int query_disk(struct aac_dev *dev, void __user *arg) +{ + struct aac_query_disk qd; + struct fsa_dev_info *fsa_dev_ptr; + + fsa_dev_ptr = dev->fsa_dev; + if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk))) + return -EFAULT; + if (qd.cnum == -1) + qd.cnum = ID_LUN_TO_CONTAINER(qd.id, qd.lun); + else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) + { + if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers) + return -EINVAL; + qd.instance = dev->scsi_host_ptr->host_no; + qd.bus = 0; + qd.id = CONTAINER_TO_ID(qd.cnum); + qd.lun = CONTAINER_TO_LUN(qd.cnum); + } + else return -EINVAL; + + qd.valid = fsa_dev_ptr[qd.cnum].valid; + qd.locked = fsa_dev_ptr[qd.cnum].locked; + qd.deleted = fsa_dev_ptr[qd.cnum].deleted; + + if (fsa_dev_ptr[qd.cnum].devname[0] == '\0') + qd.unmapped = 1; + else + qd.unmapped = 0; + + strlcpy(qd.name, fsa_dev_ptr[qd.cnum].devname, + min(sizeof(qd.name), sizeof(fsa_dev_ptr[qd.cnum].devname) + 1)); + + if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk))) + return -EFAULT; + return 0; +} + +static int force_delete_disk(struct aac_dev *dev, void __user *arg) +{ + struct aac_delete_disk dd; + struct fsa_dev_info *fsa_dev_ptr; + + fsa_dev_ptr = dev->fsa_dev; + + if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk))) + return -EFAULT; + + if (dd.cnum >= dev->maximum_num_containers) + return -EINVAL; + /* + * Mark this container as being deleted. + */ + fsa_dev_ptr[dd.cnum].deleted = 1; + /* + * Mark the container as no longer valid + */ + fsa_dev_ptr[dd.cnum].valid = 0; + return 0; +} + +static int delete_disk(struct aac_dev *dev, void __user *arg) +{ + struct aac_delete_disk dd; + struct fsa_dev_info *fsa_dev_ptr; + + fsa_dev_ptr = dev->fsa_dev; + + if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk))) + return -EFAULT; + + if (dd.cnum >= dev->maximum_num_containers) + return -EINVAL; + /* + * If the container is locked, it can not be deleted by the API. + */ + if (fsa_dev_ptr[dd.cnum].locked) + return -EBUSY; + else { + /* + * Mark the container as no longer being valid. + */ + fsa_dev_ptr[dd.cnum].valid = 0; + fsa_dev_ptr[dd.cnum].devname[0] = '\0'; + return 0; + } +} + +int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg) +{ + switch (cmd) { + case FSACTL_QUERY_DISK: + return query_disk(dev, arg); + case FSACTL_DELETE_DISK: + return delete_disk(dev, arg); + case FSACTL_FORCE_DELETE_DISK: + return force_delete_disk(dev, arg); + case FSACTL_GET_CONTAINERS: + return aac_get_containers(dev); + default: + return -ENOTTY; + } +} + +/** + * + * aac_srb_callback + * @context: the context set in the fib - here it is scsi cmd + * @fibptr: pointer to the fib + * + * Handles the completion of a scsi command to a non dasd device + * + */ + +static void aac_srb_callback(void *context, struct fib * fibptr) +{ + struct aac_dev *dev; + struct aac_srb_reply *srbreply; + struct scsi_cmnd *scsicmd; + + scsicmd = (struct scsi_cmnd *) context; + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + + if (fibptr == NULL) + BUG(); + + srbreply = (struct aac_srb_reply *) fib_data(fibptr); + + scsicmd->sense_buffer[0] = '\0'; /* Initialize sense valid flag to false */ + /* + * Calculate resid for sg + */ + + scsicmd->resid = scsicmd->request_bufflen - + le32_to_cpu(srbreply->data_xfer_length); + + if(scsicmd->use_sg) + pci_unmap_sg(dev->pdev, + (struct scatterlist *)scsicmd->buffer, + scsicmd->use_sg, + scsicmd->sc_data_direction); + else if(scsicmd->request_bufflen) + pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle, scsicmd->request_bufflen, + scsicmd->sc_data_direction); + + /* + * First check the fib status + */ + + if (le32_to_cpu(srbreply->status) != ST_OK){ + int len; + printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status)); + len = (le32_to_cpu(srbreply->sense_data_size) > + sizeof(scsicmd->sense_buffer)) ? + sizeof(scsicmd->sense_buffer) : + le32_to_cpu(srbreply->sense_data_size); + scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION; + memcpy(scsicmd->sense_buffer, srbreply->sense_data, len); + } + + /* + * Next check the srb status + */ + switch( (le32_to_cpu(srbreply->srb_status))&0x3f){ + case SRB_STATUS_ERROR_RECOVERY: + case SRB_STATUS_PENDING: + case SRB_STATUS_SUCCESS: + if(scsicmd->cmnd[0] == INQUIRY ){ + u8 b; + u8 b1; + /* We can't expose disk devices because we can't tell whether they + * are the raw container drives or stand alone drives. If they have + * the removable bit set then we should expose them though. + */ + b = (*(u8*)scsicmd->buffer)&0x1f; + b1 = ((u8*)scsicmd->buffer)[1]; + if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER + || (b==TYPE_DISK && (b1&0x80)) ){ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + /* + * We will allow disk devices if in RAID/SCSI mode and + * the channel is 2 + */ + } else if ((dev->raid_scsi_mode) && + (scsicmd->device->channel == 2)) { + scsicmd->result = DID_OK << 16 | + COMMAND_COMPLETE << 8; + } else { + scsicmd->result = DID_NO_CONNECT << 16 | + COMMAND_COMPLETE << 8; + } + } else { + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + } + break; + case SRB_STATUS_DATA_OVERRUN: + switch(scsicmd->cmnd[0]){ + case READ_6: + case WRITE_6: + case READ_10: + case WRITE_10: + case READ_12: + case WRITE_12: + if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) { + printk(KERN_WARNING"aacraid: SCSI CMD underflow\n"); + } else { + printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n"); + } + scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8; + break; + case INQUIRY: { + u8 b; + u8 b1; + /* We can't expose disk devices because we can't tell whether they + * are the raw container drives or stand alone drives + */ + b = (*(u8*)scsicmd->buffer)&0x0f; + b1 = ((u8*)scsicmd->buffer)[1]; + if( b==TYPE_TAPE || b==TYPE_WORM || b==TYPE_ROM || b==TYPE_MOD|| b==TYPE_MEDIUM_CHANGER + || (b==TYPE_DISK && (b1&0x80)) ){ + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + /* + * We will allow disk devices if in RAID/SCSI mode and + * the channel is 2 + */ + } else if ((dev->raid_scsi_mode) && + (scsicmd->device->channel == 2)) { + scsicmd->result = DID_OK << 16 | + COMMAND_COMPLETE << 8; + } else { + scsicmd->result = DID_NO_CONNECT << 16 | + COMMAND_COMPLETE << 8; + } + break; + } + default: + scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8; + break; + } + break; + case SRB_STATUS_ABORTED: + scsicmd->result = DID_ABORT << 16 | ABORT << 8; + break; + case SRB_STATUS_ABORT_FAILED: + // Not sure about this one - but assuming the hba was trying to abort for some reason + scsicmd->result = DID_ERROR << 16 | ABORT << 8; + break; + case SRB_STATUS_PARITY_ERROR: + scsicmd->result = DID_PARITY << 16 | MSG_PARITY_ERROR << 8; + break; + case SRB_STATUS_NO_DEVICE: + case SRB_STATUS_INVALID_PATH_ID: + case SRB_STATUS_INVALID_TARGET_ID: + case SRB_STATUS_INVALID_LUN: + case SRB_STATUS_SELECTION_TIMEOUT: + scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; + break; + + case SRB_STATUS_COMMAND_TIMEOUT: + case SRB_STATUS_TIMEOUT: + scsicmd->result = DID_TIME_OUT << 16 | COMMAND_COMPLETE << 8; + break; + + case SRB_STATUS_BUSY: + scsicmd->result = DID_NO_CONNECT << 16 | COMMAND_COMPLETE << 8; + break; + + case SRB_STATUS_BUS_RESET: + scsicmd->result = DID_RESET << 16 | COMMAND_COMPLETE << 8; + break; + + case SRB_STATUS_MESSAGE_REJECTED: + scsicmd->result = DID_ERROR << 16 | MESSAGE_REJECT << 8; + break; + case SRB_STATUS_REQUEST_FLUSHED: + case SRB_STATUS_ERROR: + case SRB_STATUS_INVALID_REQUEST: + case SRB_STATUS_REQUEST_SENSE_FAILED: + case SRB_STATUS_NO_HBA: + case SRB_STATUS_UNEXPECTED_BUS_FREE: + case SRB_STATUS_PHASE_SEQUENCE_FAILURE: + case SRB_STATUS_BAD_SRB_BLOCK_LENGTH: + case SRB_STATUS_DELAYED_RETRY: + case SRB_STATUS_BAD_FUNCTION: + case SRB_STATUS_NOT_STARTED: + case SRB_STATUS_NOT_IN_USE: + case SRB_STATUS_FORCE_ABORT: + case SRB_STATUS_DOMAIN_VALIDATION_FAIL: + default: +#ifdef AAC_DETAILED_STATUS_INFO + printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n", + le32_to_cpu(srbreply->srb_status) & 0x3F, + aac_get_status_string( + le32_to_cpu(srbreply->srb_status) & 0x3F), + scsicmd->cmnd[0], + le32_to_cpu(srbreply->scsi_status)); +#endif + scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8; + break; + } + if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){ // Check Condition + int len; + scsicmd->result |= SAM_STAT_CHECK_CONDITION; + len = (le32_to_cpu(srbreply->sense_data_size) > + sizeof(scsicmd->sense_buffer)) ? + sizeof(scsicmd->sense_buffer) : + le32_to_cpu(srbreply->sense_data_size); +#ifdef AAC_DETAILED_STATUS_INFO + dprintk((KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n", + le32_to_cpu(srbreply->status), len)); +#endif + memcpy(scsicmd->sense_buffer, srbreply->sense_data, len); + + } + /* + * OR in the scsi status (already shifted up a bit) + */ + scsicmd->result |= le32_to_cpu(srbreply->scsi_status); + + fib_complete(fibptr); + fib_free(fibptr); + aac_io_done(scsicmd); +} + +/** + * + * aac_send_scb_fib + * @scsicmd: the scsi command block + * + * This routine will form a FIB and fill in the aac_srb from the + * scsicmd passed in. + */ + +static int aac_send_srb_fib(struct scsi_cmnd* scsicmd) +{ + struct fib* cmd_fibcontext; + struct aac_dev* dev; + int status; + struct aac_srb *srbcmd; + u16 fibsize; + u32 flag; + u32 timeout; + + if( scsicmd->device->id > 15 || scsicmd->device->lun > 7) { + scsicmd->result = DID_NO_CONNECT << 16; + scsicmd->scsi_done(scsicmd); + return 0; + } + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + switch(scsicmd->sc_data_direction){ + case DMA_TO_DEVICE: + flag = SRB_DataOut; + break; + case DMA_BIDIRECTIONAL: + flag = SRB_DataIn | SRB_DataOut; + break; + case DMA_FROM_DEVICE: + flag = SRB_DataIn; + break; + case DMA_NONE: + default: /* shuts up some versions of gcc */ + flag = SRB_NoDataXfer; + break; + } + + + /* + * Allocate and initialize a Fib then setup a BlockWrite command + */ + if (!(cmd_fibcontext = fib_alloc(dev))) { + return -1; + } + fib_init(cmd_fibcontext); + + srbcmd = (struct aac_srb*) fib_data(cmd_fibcontext); + srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi); + srbcmd->channel = cpu_to_le32(aac_logical_to_phys(scsicmd->device->channel)); + srbcmd->id = cpu_to_le32(scsicmd->device->id); + srbcmd->lun = cpu_to_le32(scsicmd->device->lun); + srbcmd->flags = cpu_to_le32(flag); + timeout = (scsicmd->timeout-jiffies)/HZ; + if(timeout == 0){ + timeout = 1; + } + srbcmd->timeout = cpu_to_le32(timeout); // timeout in seconds + srbcmd->retry_limit = 0; /* Obsolete parameter */ + srbcmd->cdb_size = cpu_to_le32(scsicmd->cmd_len); + + if( dev->dac_support == 1 ) { + aac_build_sg64(scsicmd, (struct sgmap64*) &srbcmd->sg); + srbcmd->count = cpu_to_le32(scsicmd->request_bufflen); + + memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb)); + memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len); + /* + * Build Scatter/Gather list + */ + fibsize = sizeof (struct aac_srb) - sizeof (struct sgentry) + + ((le32_to_cpu(srbcmd->sg.count) & 0xff) * + sizeof (struct sgentry64)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + + /* + * Now send the Fib to the adapter + */ + status = fib_send(ScsiPortCommand64, cmd_fibcontext, + fibsize, FsaNormal, 0, 1, + (fib_callback) aac_srb_callback, + (void *) scsicmd); + } else { + aac_build_sg(scsicmd, (struct sgmap*)&srbcmd->sg); + srbcmd->count = cpu_to_le32(scsicmd->request_bufflen); + + memset(srbcmd->cdb, 0, sizeof(srbcmd->cdb)); + memcpy(srbcmd->cdb, scsicmd->cmnd, scsicmd->cmd_len); + /* + * Build Scatter/Gather list + */ + fibsize = sizeof (struct aac_srb) + + (((le32_to_cpu(srbcmd->sg.count) & 0xff) - 1) * + sizeof (struct sgentry)); + BUG_ON (fibsize > (sizeof(struct hw_fib) - + sizeof(struct aac_fibhdr))); + + /* + * Now send the Fib to the adapter + */ + status = fib_send(ScsiPortCommand, cmd_fibcontext, fibsize, FsaNormal, 0, 1, + (fib_callback) aac_srb_callback, (void *) scsicmd); + } + /* + * Check that the command queued to the controller + */ + if (status == -EINPROGRESS){ + return 0; + } + + printk(KERN_WARNING "aac_srb: fib_send failed with status: %d\n", status); + fib_complete(cmd_fibcontext); + fib_free(cmd_fibcontext); + + return -1; +} + +static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* psg) +{ + struct aac_dev *dev; + unsigned long byte_count = 0; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + // Get rid of old data + psg->count = 0; + psg->sg[0].addr = 0; + psg->sg[0].count = 0; + if (scsicmd->use_sg) { + struct scatterlist *sg; + int i; + int sg_count; + sg = (struct scatterlist *) scsicmd->request_buffer; + + sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg, + scsicmd->sc_data_direction); + psg->count = cpu_to_le32(sg_count); + + byte_count = 0; + + for (i = 0; i < sg_count; i++) { + psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg)); + psg->sg[i].count = cpu_to_le32(sg_dma_len(sg)); + byte_count += sg_dma_len(sg); + sg++; + } + /* hba wants the size to be exact */ + if(byte_count > scsicmd->request_bufflen){ + psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen); + byte_count = scsicmd->request_bufflen; + } + /* Check for command underflow */ + if(scsicmd->underflow && (byte_count < scsicmd->underflow)){ + printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n", + byte_count, scsicmd->underflow); + } + } + else if(scsicmd->request_bufflen) { + dma_addr_t addr; + addr = pci_map_single(dev->pdev, + scsicmd->request_buffer, + scsicmd->request_bufflen, + scsicmd->sc_data_direction); + psg->count = cpu_to_le32(1); + psg->sg[0].addr = cpu_to_le32(addr); + psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen); + scsicmd->SCp.dma_handle = addr; + byte_count = scsicmd->request_bufflen; + } + return byte_count; +} + + +static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg) +{ + struct aac_dev *dev; + unsigned long byte_count = 0; + u64 le_addr; + + dev = (struct aac_dev *)scsicmd->device->host->hostdata; + // Get rid of old data + psg->count = 0; + psg->sg[0].addr[0] = 0; + psg->sg[0].addr[1] = 0; + psg->sg[0].count = 0; + if (scsicmd->use_sg) { + struct scatterlist *sg; + int i; + int sg_count; + sg = (struct scatterlist *) scsicmd->request_buffer; + + sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg, + scsicmd->sc_data_direction); + psg->count = cpu_to_le32(sg_count); + + byte_count = 0; + + for (i = 0; i < sg_count; i++) { + le_addr = cpu_to_le64(sg_dma_address(sg)); + psg->sg[i].addr[1] = (u32)(le_addr>>32); + psg->sg[i].addr[0] = (u32)(le_addr & 0xffffffff); + psg->sg[i].count = cpu_to_le32(sg_dma_len(sg)); + byte_count += sg_dma_len(sg); + sg++; + } + /* hba wants the size to be exact */ + if(byte_count > scsicmd->request_bufflen){ + psg->sg[i-1].count -= (byte_count - scsicmd->request_bufflen); + byte_count = scsicmd->request_bufflen; + } + /* Check for command underflow */ + if(scsicmd->underflow && (byte_count < scsicmd->underflow)){ + printk(KERN_WARNING"aacraid: cmd len %08lX cmd underflow %08X\n", + byte_count, scsicmd->underflow); + } + } + else if(scsicmd->request_bufflen) { + dma_addr_t addr; + addr = pci_map_single(dev->pdev, + scsicmd->request_buffer, + scsicmd->request_bufflen, + scsicmd->sc_data_direction); + psg->count = cpu_to_le32(1); + le_addr = cpu_to_le64(addr); + psg->sg[0].addr[1] = (u32)(le_addr>>32); + psg->sg[0].addr[0] = (u32)(le_addr & 0xffffffff); + psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen); + scsicmd->SCp.dma_handle = addr; + byte_count = scsicmd->request_bufflen; + } + return byte_count; +} + +#ifdef AAC_DETAILED_STATUS_INFO + +struct aac_srb_status_info { + u32 status; + char *str; +}; + + +static struct aac_srb_status_info srb_status_info[] = { + { SRB_STATUS_PENDING, "Pending Status"}, + { SRB_STATUS_SUCCESS, "Success"}, + { SRB_STATUS_ABORTED, "Aborted Command"}, + { SRB_STATUS_ABORT_FAILED, "Abort Failed"}, + { SRB_STATUS_ERROR, "Error Event"}, + { SRB_STATUS_BUSY, "Device Busy"}, + { SRB_STATUS_INVALID_REQUEST, "Invalid Request"}, + { SRB_STATUS_INVALID_PATH_ID, "Invalid Path ID"}, + { SRB_STATUS_NO_DEVICE, "No Device"}, + { SRB_STATUS_TIMEOUT, "Timeout"}, + { SRB_STATUS_SELECTION_TIMEOUT, "Selection Timeout"}, + { SRB_STATUS_COMMAND_TIMEOUT, "Command Timeout"}, + { SRB_STATUS_MESSAGE_REJECTED, "Message Rejected"}, + { SRB_STATUS_BUS_RESET, "Bus Reset"}, + { SRB_STATUS_PARITY_ERROR, "Parity Error"}, + { SRB_STATUS_REQUEST_SENSE_FAILED,"Request Sense Failed"}, + { SRB_STATUS_NO_HBA, "No HBA"}, + { SRB_STATUS_DATA_OVERRUN, "Data Overrun/Data Underrun"}, + { SRB_STATUS_UNEXPECTED_BUS_FREE,"Unexpected Bus Free"}, + { SRB_STATUS_PHASE_SEQUENCE_FAILURE,"Phase Error"}, + { SRB_STATUS_BAD_SRB_BLOCK_LENGTH,"Bad Srb Block Length"}, + { SRB_STATUS_REQUEST_FLUSHED, "Request Flushed"}, + { SRB_STATUS_DELAYED_RETRY, "Delayed Retry"}, + { SRB_STATUS_INVALID_LUN, "Invalid LUN"}, + { SRB_STATUS_INVALID_TARGET_ID, "Invalid TARGET ID"}, + { SRB_STATUS_BAD_FUNCTION, "Bad Function"}, + { SRB_STATUS_ERROR_RECOVERY, "Error Recovery"}, + { SRB_STATUS_NOT_STARTED, "Not Started"}, + { SRB_STATUS_NOT_IN_USE, "Not In Use"}, + { SRB_STATUS_FORCE_ABORT, "Force Abort"}, + { SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"}, + { 0xff, "Unknown Error"} +}; + +char *aac_get_status_string(u32 status) +{ + int i; + + for(i=0; i < (sizeof(srb_status_info)/sizeof(struct aac_srb_status_info)); i++ ){ + if(srb_status_info[i].status == status){ + return srb_status_info[i].str; + } + } + + return "Bad Status Code"; +} + +#endif |