patch-2.4.17 linux/drivers/scsi/aacraid/aachba.c
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- Lines: 1154
- Date:
Fri Dec 21 16:40:32 2001
- Orig file:
linux-2.4.16/drivers/scsi/aacraid/aachba.c
- Orig date:
Thu Jan 1 00:00:00 1970
diff -Naur -X /home/marcelo/lib/dontdiff linux-2.4.16/drivers/scsi/aacraid/aachba.c linux/drivers/scsi/aacraid/aachba.c
@@ -0,0 +1,1153 @@
+/*
+ * 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/config.h>
+#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 <asm/semaphore.h>
+#include <asm/uaccess.h>
+#define MAJOR_NR SCSI_DISK0_MAJOR /* For DEVICE_NR() */
+#include <linux/blk.h>
+#include "scsi.h"
+#include "hosts.h"
+#include "sd.h"
+
+#include "aacraid.h"
+
+/* SCSI Commands */
+#define SS_TEST 0x00 /* Test unit ready */
+#define SS_REZERO 0x01 /* Rezero unit */
+#define SS_REQSEN 0x03 /* Request Sense */
+#define SS_REASGN 0x07 /* Reassign blocks */
+#define SS_READ 0x08 /* Read 6 */
+#define SS_WRITE 0x0A /* Write 6 */
+#define SS_INQUIR 0x12 /* inquiry */
+#define SS_ST_SP 0x1B /* Start/Stop unit */
+#define SS_LOCK 0x1E /* prevent/allow medium removal */
+#define SS_RESERV 0x16 /* Reserve */
+#define SS_RELES 0x17 /* Release */
+#define SS_MODESEN 0x1A /* Mode Sense 6 */
+#define SS_RDCAP 0x25 /* Read Capacity */
+#define SM_READ 0x28 /* Read 10 */
+#define SM_WRITE 0x2A /* Write 10 */
+#define SS_SEEK 0x2B /* Seek */
+
+/* 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 TARGET_LUN_TO_CONTAINER(target, lun) (((lun) << 4) | target)
+#define CONTAINER_TO_TARGET(cont) ((cont) & 0xf)
+#define CONTAINER_TO_LUN(cont) ((cont) >> 4)
+
+#define MAX_FIB_DATA (sizeof(struct hw_fib) - sizeof(FIB_HEADER))
+
+#define MAX_DRIVER_SG_SEGMENT_COUNT 17
+
+/*
+ * Sense keys
+ */
+#define SENKEY_NO_SENSE 0x00
+#define SENKEY_UNDEFINED 0x01
+#define SENKEY_NOT_READY 0x02
+#define SENKEY_MEDIUM_ERR 0x03
+#define SENKEY_HW_ERR 0x04
+#define SENKEY_ILLEGAL 0x05
+#define SENKEY_ATTENTION 0x06
+#define SENKEY_PROTECTED 0x07
+#define SENKEY_BLANK 0x08
+#define SENKEY_V_UNIQUE 0x09
+#define SENKEY_CPY_ABORT 0x0A
+#define SENKEY_ABORT 0x0B
+#define SENKEY_EQUAL 0x0C
+#define SENKEY_VOL_OVERFLOW 0x0D
+#define SENKEY_MISCOMP 0x0E
+#define SENKEY_RESERVED 0x0F
+
+/*
+ * 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 */
+};
+
+struct sense_data {
+ u8 error_code; /* 70h (current errors), 71h(deferred errors) */
+ u8 valid:1; /* A valid bit of one indicates that the information */
+ /* field contains valid information as defined in the
+ * SCSI-2 Standard.
+ */
+ u8 segment_number; /* Only used for COPY, COMPARE, or COPY AND VERIFY Commands */
+ u8 sense_key:4; /* Sense Key */
+ u8 reserved:1;
+ u8 ILI:1; /* Incorrect Length Indicator */
+ u8 EOM:1; /* End Of Medium - reserved for random access devices */
+ u8 filemark:1; /* Filemark - reserved for random access devices */
+
+ u8 information[4]; /* for direct-access devices, contains the unsigned
+ * logical block address or residue associated with
+ * the sense key
+ */
+ u8 add_sense_len; /* number of additional sense bytes to follow this field */
+ u8 cmnd_info[4]; /* not used */
+ u8 ASC; /* Additional Sense Code */
+ u8 ASCQ; /* Additional Sense Code Qualifier */
+ u8 FRUC; /* Field Replaceable Unit Code - not used */
+ u8 bit_ptr:3; /* indicates which byte of the CDB or parameter data
+ * was in error
+ */
+ u8 BPV:1; /* bit pointer valid (BPV): 1- indicates that
+ * the bit_ptr field has valid value
+ */
+ u8 reserved2:2;
+ u8 CD:1; /* command data bit: 1- illegal parameter in CDB.
+ * 0- illegal parameter in data.
+ */
+ u8 SKSV:1;
+ u8 field_ptr[2]; /* byte of the CDB or parameter data in error */
+};
+
+/*
+ * M O D U L E G L O B A L S
+ */
+
+static struct fsa_scsi_hba *fsa_dev[MAXIMUM_NUM_ADAPTERS]; /* SCSI Device Instance Pointers */
+static struct sense_data sense_data[MAXIMUM_NUM_CONTAINERS];
+static void get_sd_devname(int disknum, char *buffer);
+
+/**
+ * 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_scsi_hba *fsa_dev_ptr;
+ int index, status = 0;
+ 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;
+
+ for (index = 0; index < MAXIMUM_NUM_CONTAINERS; index++) {
+ 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 "ProbeContainers: SendFIB failed.\n");
+ break;
+ }
+ dresp = (struct aac_mount *)fib_data(fibptr);
+
+ if ((le32_to_cpu(dresp->status) == ST_OK) &&
+ (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
+ fsa_dev_ptr->valid[index] = 1;
+ fsa_dev_ptr->type[index] = le32_to_cpu(dresp->mnt[0].vol);
+ fsa_dev_ptr->size[index] = le32_to_cpu(dresp->mnt[0].capacity);
+ if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
+ fsa_dev_ptr->ro[index] = 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);
+ fsa_dev[instance] = fsa_dev_ptr;
+ return status;
+}
+
+/**
+ * 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_scsi_hba structure rather than returned.
+ */
+
+static int probe_container(struct aac_dev *dev, int cid)
+{
+ struct fsa_scsi_hba *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)) {
+ fsa_dev_ptr->valid[cid] = 1;
+ fsa_dev_ptr->type[cid] = le32_to_cpu(dresp->mnt[0].vol);
+ fsa_dev_ptr->size[cid] = le32_to_cpu(dresp->mnt[0].capacity);
+ if (le32_to_cpu(dresp->mnt[0].state) & FSCS_READONLY)
+ fsa_dev_ptr->ro[cid] = 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;
+ char *findit;
+ struct aac_driver_ident *mp;
+ extern struct aac_driver_ident aac_drivers[]; /* HACK FIXME */
+
+ mp = &aac_drivers[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 */
+
+ findit = str->pid;
+
+ for ( ; *findit != ' '; findit++); /* walk till we find a space then incr by 1 */
+ findit++;
+
+ if (tindex < (sizeof(container_types)/sizeof(char *))){
+ inqstrcpy (container_types[tindex], findit);
+ }
+ inqstrcpy ("0001", str->prl);
+}
+
+void set_sense(char *sense_buf, u8 sense_key, u8 sense_code,
+ u8 a_sense_code, u8 incorrect_length,
+ u8 bit_pointer, unsigned field_pointer,
+ unsigned long 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 the 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 == SENKEY_ILLEGAL)
+ 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 == SENKEY_ILLEGAL) {
+ 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 */
+ }
+}
+
+static void aac_io_done(Scsi_Cmnd * scsicmd)
+{
+ unsigned long cpu_flags;
+ spin_lock_irqsave(&io_request_lock, cpu_flags);
+ scsicmd->scsi_done(scsicmd);
+ spin_unlock_irqrestore(&io_request_lock, cpu_flags);
+}
+
+static void __aac_io_done(Scsi_Cmnd * scsicmd)
+{
+ scsicmd->scsi_done(scsicmd);
+}
+
+static void read_callback(void *context, struct fib * fibptr)
+{
+ struct aac_dev *dev;
+ struct aac_read_reply *readreply;
+ Scsi_Cmnd *scsicmd;
+ unsigned long lba;
+ int cid;
+
+ scsicmd = (Scsi_Cmnd *) context;
+
+ dev = (struct aac_dev *)scsicmd->host->hostdata;
+ cid =TARGET_LUN_TO_CONTAINER(scsicmd->target, scsicmd->lun);
+
+ lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
+ dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %ld, 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,
+ scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+ else if(scsicmd->request_bufflen)
+ pci_unmap_single(dev->pdev, (u32)scsicmd->SCp.ptr, scsicmd->request_bufflen,
+ scsi_to_pci_dma_dir(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 | GOOD;
+ else {
+ printk(KERN_WARNING "read_callback: read failed, status = %d\n", readreply->status);
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION;
+ set_sense((char *) &sense_data[cid],
+ SENKEY_HW_ERR,
+ SENCODE_INTERNAL_TARGET_FAILURE,
+ ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
+ 0, 0);
+ }
+ 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;
+ Scsi_Cmnd *scsicmd;
+ unsigned long lba;
+ int cid;
+
+ scsicmd = (Scsi_Cmnd *) context;
+ dev = (struct aac_dev *)scsicmd->host->hostdata;
+ cid = TARGET_LUN_TO_CONTAINER(scsicmd->target, scsicmd->lun);
+
+ lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
+ dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %ld, 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,
+ scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+ else if(scsicmd->request_bufflen)
+ pci_unmap_single(dev->pdev, (u32)scsicmd->SCp.ptr, scsicmd->request_bufflen,
+ scsi_to_pci_dma_dir(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 | GOOD;
+ else {
+ printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION;
+ set_sense((char *) &sense_data[cid],
+ SENKEY_HW_ERR,
+ SENCODE_INTERNAL_TARGET_FAILURE,
+ ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
+ 0, 0);
+ }
+
+ fib_complete(fibptr);
+ fib_free(fibptr);
+ aac_io_done(scsicmd);
+}
+
+int aac_read(Scsi_Cmnd * scsicmd, int cid)
+{
+ unsigned long lba;
+ unsigned long count;
+ unsigned long byte_count = 0;
+ int status;
+
+ struct aac_read *readcmd;
+ u16 fibsize;
+ struct aac_dev *dev;
+ struct fib * cmd_fibcontext;
+
+ dev = (struct aac_dev *)scsicmd->host->hostdata;
+ /*
+ * Get block address and transfer length
+ */
+ if (scsicmd->cmnd[0] == SS_READ) /* 6 byte command */
+ {
+ dprintk((KERN_DEBUG "aachba: received a read(6) command on target %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 target %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 = %lu, t = %ld.\n", smp_processor_id(), lba, jiffies));
+ /*
+ * Alocate and initialize a Fib
+ */
+ if (!(cmd_fibcontext = fib_alloc(dev))) {
+ scsicmd->result = DID_ERROR << 16;
+ aac_io_done(scsicmd);
+ return (-1);
+ }
+
+ fib_init(cmd_fibcontext);
+
+ 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);
+ readcmd->sg.count = cpu_to_le32(1);
+
+ if (count * 512 > (64 * 1024))
+ BUG();
+ /*
+ * Build Scatter/Gather list
+ */
+ if (scsicmd->use_sg) /* use scatter/gather list */
+ {
+ 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,
+ scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+
+ byte_count = 0;
+
+ for (i = 0; i < sg_count; i++) {
+ readcmd->sg.sg[i].addr = cpu_to_le32(sg_dma_address(sg));
+ readcmd->sg.sg[i].count = cpu_to_le32(sg_dma_len(sg));
+ byte_count += sg->length;
+ if (sg->length > (64 * 1024))
+ BUG();
+ sg++;
+ }
+ readcmd->sg.count = cpu_to_le32(sg_count);
+
+ if (sg_count > MAX_DRIVER_SG_SEGMENT_COUNT)
+ BUG();
+ }
+ else if(scsicmd->request_bufflen)
+ {
+ u32 addr;
+ addr = pci_map_single(dev->pdev, scsicmd->request_buffer,
+ scsicmd->request_bufflen, scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+ scsicmd->SCp.ptr = (void *)addr;
+ readcmd->sg.sg[0].addr = cpu_to_le32(addr);
+ readcmd->sg.sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
+
+ byte_count = scsicmd->request_bufflen;
+
+ if (byte_count > (64 * 1024))
+ BUG();
+ }
+ if (byte_count != readcmd->count)
+ BUG();
+ /*
+ * Now send the Fib to the adapter
+ */
+ fibsize = sizeof(struct aac_read) + ((readcmd->sg.count - 1) * sizeof (struct sgentry));
+ 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 | QUEUE_FULL;
+ aac_io_done(scsicmd);
+ fib_complete(cmd_fibcontext);
+ fib_free(cmd_fibcontext);
+ return -1;
+}
+
+static int aac_write(Scsi_Cmnd * scsicmd, int cid)
+{
+ unsigned long lba;
+ unsigned long count;
+ unsigned long byte_count = 0;
+ int status;
+ struct aac_write *writecmd;
+ u16 fibsize;
+ struct aac_dev *dev;
+ struct fib * cmd_fibcontext;
+
+ dev = (struct aac_dev *)scsicmd->host->hostdata;
+ /*
+ * Get block address and transfer length
+ */
+ if (scsicmd->cmnd[0] == SS_WRITE) /* 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 target %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 = %lu, t = %ld.\n", smp_processor_id(), 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 -1;
+ }
+ fib_init(cmd_fibcontext);
+
+ 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);
+ /* FIXME: why isnt ->stable setup */
+
+ if (count * 512 > (64 * 1024)) {
+ BUG();
+ }
+ /*
+ * Build Scatter/Gather list
+ */
+ 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,
+ scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+
+ byte_count = 0;
+
+ for (i = 0; i < scsicmd->use_sg; i++) {
+ writecmd->sg.sg[i].addr = cpu_to_le32(sg_dma_address(sg));
+ writecmd->sg.sg[i].count = cpu_to_le32(sg_dma_len(sg));
+ byte_count += sg->length;
+
+ if (sg->length > (64 * 1024))
+ BUG();
+ sg++;
+ }
+ writecmd->sg.count = cpu_to_le32(sg_count);
+
+ if (sg_count > MAX_DRIVER_SG_SEGMENT_COUNT)
+ BUG();
+ }
+ else if(scsicmd->request_bufflen)
+ {
+ u32 addr;
+ addr = pci_map_single(dev->pdev,
+ scsicmd->request_buffer,
+ scsicmd->request_bufflen,
+ scsi_to_pci_dma_dir(scsicmd->sc_data_direction));
+ writecmd->sg.sg[0].addr = cpu_to_le32(addr);
+ writecmd->sg.sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
+ scsicmd->SCp.ptr = (void *)addr;
+ byte_count = scsicmd->request_bufflen;
+
+ if (byte_count > (64 * 1024))
+ BUG();
+ }
+ if (byte_count != writecmd->count)
+ BUG();
+ /*
+ * Now send the Fib to the adapter
+ */
+ fibsize = sizeof (struct aac_write) + ((writecmd->sg.count - 1) * sizeof (struct sgentry));
+
+ 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)
+ 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 | QUEUE_FULL;
+ aac_io_done(scsicmd);
+
+ fib_complete(cmd_fibcontext);
+ fib_free(cmd_fibcontext);
+ return -1;
+}
+
+
+/**
+ * aac_scsi_cmd() - Process SCSI command
+ * @scsicmd: SCSI command block
+ * @wait: 1 if the user wants to await completion
+ *
+ * Emulate a SCSI command and queue the required request for the
+ * aacraid firmware.
+ */
+
+int aac_scsi_cmd(Scsi_Cmnd * scsicmd)
+{
+ int cid = 0;
+ struct fsa_scsi_hba *fsa_dev_ptr;
+ int cardtype;
+ int ret;
+ struct aac_dev *dev = (struct aac_dev *)scsicmd->host->hostdata;
+
+ cardtype = dev->cardtype;
+
+ fsa_dev_ptr = fsa_dev[scsicmd->host->unique_id];
+
+ /*
+ * If the bus, target or lun is out of range, return fail
+ * Test does not apply to ID 16, the pseudo id for the controller
+ * itself.
+ */
+ if (scsicmd->target != scsicmd->host->this_id) {
+ if ((scsicmd->channel > 0) ||(scsicmd->target > 15) || (scsicmd->lun > 7))
+ {
+ dprintk((KERN_DEBUG "The bus, target or lun is out of range = %d, %d, %d.\n",
+ scsicmd->channel, scsicmd->target, scsicmd->lun));
+ scsicmd->result = DID_BAD_TARGET << 16;
+ __aac_io_done(scsicmd);
+ return -1;
+ }
+ cid = TARGET_LUN_TO_CONTAINER(scsicmd->target, scsicmd->lun);
+ /*
+ * If the target container doesn't exist, it may have
+ * been newly created
+ */
+ if (fsa_dev_ptr->valid[cid] == 0) {
+ switch (scsicmd->cmnd[0]) {
+ case SS_INQUIR:
+ case SS_RDCAP:
+ case SS_TEST:
+ spin_unlock_irq(&io_request_lock);
+ probe_container(dev, cid);
+ spin_lock_irq(&io_request_lock);
+ default:
+ break;
+ }
+ }
+ /*
+ * If the target container still doesn't exist,
+ * return failure
+ */
+ if (fsa_dev_ptr->valid[cid] == 0) {
+ scsicmd->result = DID_BAD_TARGET << 16;
+ __aac_io_done(scsicmd);
+ return -1;
+ }
+ }
+ else if ((scsicmd->cmnd[0] != SS_INQUIR) && /* only INQUIRY & TUR cmnd supported for controller */
+ (scsicmd->cmnd[0] != SS_TEST))
+ {
+ /*
+ * Command aimed at the controller
+ */
+ 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 | CHECK_CONDITION;
+ set_sense((char *) &sense_data[cid],
+ SENKEY_ILLEGAL,
+ SENCODE_INVALID_COMMAND,
+ ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
+ __aac_io_done(scsicmd);
+ return -1;
+ }
+ /* Handle commands here that don't really require going out to the adapter */
+ switch (scsicmd->cmnd[0])
+ {
+ case SS_INQUIR:
+ {
+ struct inquiry_data *inq_data_ptr;
+
+ dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", scsicmd->target));
+ 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;
+
+ /*
+ * Set the Vendor, Product, and Revision Level
+ * see: <vendor>.c i.e. aac.c
+ */
+ setinqstr(cardtype, (void *) (inq_data_ptr->inqd_vid), fsa_dev_ptr->type[cid]);
+ if (scsicmd->target == scsicmd->host->this_id)
+ inq_data_ptr->inqd_pdt = INQD_PDT_PROC; /* Processor device */
+ else
+ inq_data_ptr->inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD;
+ __aac_io_done(scsicmd);
+ return 0;
+ }
+ case SS_RDCAP:
+ {
+ int capacity;
+ char *cp;
+
+ dprintk((KERN_DEBUG "READ CAPACITY command.\n"));
+ capacity = fsa_dev_ptr->size[cid] - 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 | GOOD;
+ __aac_io_done(scsicmd);
+
+ return 0;
+ }
+
+ case SS_MODESEN:
+ {
+ char *mode_buf;
+
+ dprintk((KERN_DEBUG "MODE SENSE 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 | GOOD;
+ __aac_io_done(scsicmd);
+
+ return 0;
+ }
+ case SS_REQSEN:
+ dprintk((KERN_DEBUG "REQUEST SENSE command.\n"));
+ memcpy(scsicmd->sense_buffer, &sense_data[cid], sizeof (struct sense_data));
+ memset(&sense_data[cid], 0, sizeof (struct sense_data));
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD;
+ __aac_io_done(scsicmd);
+ return (0);
+
+ case SS_LOCK:
+ dprintk((KERN_DEBUG "LOCK command.\n"));
+ if (scsicmd->cmnd[4])
+ fsa_dev_ptr->locked[cid] = 1;
+ else
+ fsa_dev_ptr->locked[cid] = 0;
+
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD;
+ __aac_io_done(scsicmd);
+ return 0;
+ /*
+ * These commands are all No-Ops
+ */
+ case SS_TEST:
+ case SS_RESERV:
+ case SS_RELES:
+ case SS_REZERO:
+ case SS_REASGN:
+ case SS_SEEK:
+ case SS_ST_SP:
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | GOOD;
+ __aac_io_done(scsicmd);
+ return (0);
+ }
+
+ switch (scsicmd->cmnd[0])
+ {
+ case SS_READ:
+ case SM_READ:
+ /*
+ * 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(&io_request_lock);
+ fsa_dev_ptr->devno[cid] = DEVICE_NR(scsicmd->request.rq_dev);
+ ret = aac_read(scsicmd, cid);
+ spin_lock_irq(&io_request_lock);
+ return ret;
+
+ case SS_WRITE:
+ case SM_WRITE:
+ spin_unlock_irq(&io_request_lock);
+ ret = aac_write(scsicmd, cid);
+ spin_lock_irq(&io_request_lock);
+ return ret;
+ default:
+ /*
+ * Unhandled commands
+ */
+ printk(KERN_WARNING "Unhandled SCSI Command: 0x%x.\n", scsicmd->cmnd[0]);
+ scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | CHECK_CONDITION;
+ set_sense((char *) &sense_data[cid],
+ SENKEY_ILLEGAL, SENCODE_INVALID_COMMAND,
+ ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
+ __aac_io_done(scsicmd);
+ return -1;
+ }
+}
+
+static int query_disk(struct aac_dev *dev, void *arg)
+{
+ struct aac_query_disk qd;
+ struct fsa_scsi_hba *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 = TARGET_LUN_TO_CONTAINER(qd.target, qd.lun);
+ else if ((qd.bus == -1) && (qd.target == -1) && (qd.lun == -1))
+ {
+ if (qd.cnum < 0 || qd.cnum > MAXIMUM_NUM_CONTAINERS)
+ return -EINVAL;
+ qd.instance = dev->scsi_host_ptr->host_no;
+ qd.bus = 0;
+ qd.target = CONTAINER_TO_TARGET(qd.cnum);
+ qd.lun = CONTAINER_TO_LUN(qd.cnum);
+ }
+ else return -EINVAL;
+
+ qd.valid = fsa_dev_ptr->valid[qd.cnum];
+ qd.locked = fsa_dev_ptr->locked[qd.cnum];
+ qd.deleted = fsa_dev_ptr->deleted[qd.cnum];
+
+ if (fsa_dev_ptr->devno[qd.cnum] == -1)
+ qd.unmapped = 1;
+ else
+ qd.unmapped = 0;
+
+ get_sd_devname(fsa_dev_ptr->devno[qd.cnum], qd.name);
+
+ if (copy_to_user(arg, &qd, sizeof (struct aac_query_disk)))
+ return -EFAULT;
+ return 0;
+}
+
+static void get_sd_devname(int disknum, char *buffer)
+{
+ if (disknum < 0) {
+ sprintf(buffer, "%s", "");
+ return;
+ }
+
+ if (disknum < 26)
+ sprintf(buffer, "sd%c", 'a' + disknum);
+ else {
+ unsigned int min1;
+ unsigned int min2;
+ /*
+ * For larger numbers of disks, we need to go to a new
+ * naming scheme.
+ */
+ min1 = disknum / 26;
+ min2 = disknum % 26;
+ sprintf(buffer, "sd%c%c", 'a' + min1 - 1, 'a' + min2);
+ }
+}
+
+static int force_delete_disk(struct aac_dev *dev, void *arg)
+{
+ struct aac_delete_disk dd;
+ struct fsa_scsi_hba *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 > MAXIMUM_NUM_CONTAINERS)
+ return -EINVAL;
+ /*
+ * Mark this container as being deleted.
+ */
+ fsa_dev_ptr->deleted[dd.cnum] = 1;
+ /*
+ * Mark the container as no longer valid
+ */
+ fsa_dev_ptr->valid[dd.cnum] = 0;
+ return 0;
+}
+
+static int delete_disk(struct aac_dev *dev, void *arg)
+{
+ struct aac_delete_disk dd;
+ struct fsa_scsi_hba *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 > MAXIMUM_NUM_CONTAINERS)
+ return -EINVAL;
+ /*
+ * If the container is locked, it can not be deleted by the API.
+ */
+ if (fsa_dev_ptr->locked[dd.cnum])
+ return -EBUSY;
+ else {
+ /*
+ * Mark the container as no longer being valid.
+ */
+ fsa_dev_ptr->valid[dd.cnum] = 0;
+ fsa_dev_ptr->devno[dd.cnum] = -1;
+ return 0;
+ }
+}
+
+int aac_dev_ioctl(struct aac_dev *dev, int cmd, void *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 2131:
+ return aac_get_containers(dev);
+ default:
+ return -ENOTTY;
+ }
+}
+
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)