[SCSI] aacraid: ignore adapter reset check polarity
[sfrench/cifs-2.6.git] / drivers / scsi / aacraid / linit.c
index 9dd331bc29b01386f89532e4c057d5a126f516e0..fdfbad0903fdf30945175719574109dcea12f8dd 100644 (file)
@@ -159,27 +159,27 @@ static struct pci_device_id aac_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
 
 /*
- * dmb - For now we add the number of channels to this structure.  
+ * dmb - For now we add the number of channels to this structure.
  * In the future we should add a fib that reports the number of channels
  * for the card.  At that time we can remove the channels from here
  */
 static struct aac_driver_ident aac_drivers[] = {
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 2/Si (Iguana/PERC2Si) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Opal/PERC3Di) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Si (SlimFast/PERC3Si */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Viper/PERC3DiV) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Lexus/PERC3DiL) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Dagger/PERC3DiD) */
-       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Boxster/PERC3DiB) */
-       { aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* catapult */
-       { aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* tomcat */
-       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */
-       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */
-       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan-2m) */
-       { aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S220 (Legend Crusader) */
-       { aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S230 (Legend Vulcan) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
+       { aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
+       { aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
+       { aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
+       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2120S (Crusader) */
+       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan) */
+       { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
+       { aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
+       { aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
 
        { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
        { aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
@@ -224,8 +224,8 @@ static struct aac_driver_ident aac_drivers[] = {
        { aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
        { aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
 
-       { aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell Catchall */
-       { aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend Catchall */
+       { aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
+       { aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
        { aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
        { aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
        { aac_nark_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec NEMER/ARK Catch All */
@@ -239,7 +239,7 @@ static struct aac_driver_ident aac_drivers[] = {
  *     Queues a command for execution by the associated Host Adapter.
  *
  *     TODO: unify with aac_scsi_cmd().
- */ 
+ */
 
 static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 {
@@ -258,7 +258,7 @@ static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd
        }
        cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
        return (aac_scsi_cmd(cmd) ? FAILED : 0);
-} 
+}
 
 /**
  *     aac_info                -       Returns the host adapter name
@@ -275,9 +275,9 @@ static const char *aac_info(struct Scsi_Host *shost)
 
 /**
  *     aac_get_driver_ident
- *     @devtype: index into lookup table
+ *     @devtype: index into lookup table
  *
- *     Returns a pointer to the entry in the driver lookup table.
+ *     Returns a pointer to the entry in the driver lookup table.
  */
 
 struct aac_driver_ident* aac_get_driver_ident(int devtype)
@@ -292,21 +292,21 @@ struct aac_driver_ident* aac_get_driver_ident(int devtype)
  *     @capacity: the sector capacity of the disk
  *     @geom: geometry block to fill in
  *
- *     Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.  
- *     The default disk geometry is 64 heads, 32 sectors, and the appropriate 
- *     number of cylinders so as not to exceed drive capacity.  In order for 
+ *     Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
+ *     The default disk geometry is 64 heads, 32 sectors, and the appropriate
+ *     number of cylinders so as not to exceed drive capacity.  In order for
  *     disks equal to or larger than 1 GB to be addressable by the BIOS
- *     without exceeding the BIOS limitation of 1024 cylinders, Extended 
- *     Translation should be enabled.   With Extended Translation enabled, 
- *     drives between 1 GB inclusive and 2 GB exclusive are given a disk 
- *     geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive 
- *     are given a disk geometry of 255 heads and 63 sectors.  However, if 
- *     the BIOS detects that the Extended Translation setting does not match 
- *     the geometry in the partition table, then the translation inferred 
- *     from the partition table will be used by the BIOS, and a warning may 
+ *     without exceeding the BIOS limitation of 1024 cylinders, Extended
+ *     Translation should be enabled.   With Extended Translation enabled,
+ *     drives between 1 GB inclusive and 2 GB exclusive are given a disk
+ *     geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
+ *     are given a disk geometry of 255 heads and 63 sectors.  However, if
+ *     the BIOS detects that the Extended Translation setting does not match
+ *     the geometry in the partition table, then the translation inferred
+ *     from the partition table will be used by the BIOS, and a warning may
  *     be displayed.
  */
+
 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
                        sector_t capacity, int *geom)
 {
@@ -333,10 +333,10 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 
        param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
 
-       /* 
+       /*
         *      Read the first 1024 bytes from the disk device, if the boot
         *      sector partition table is valid, search for a partition table
-        *      entry whose end_head matches one of the standard geometry 
+        *      entry whose end_head matches one of the standard geometry
         *      translations ( 64/32, 128/32, 255/63 ).
         */
        buf = scsi_bios_ptable(bdev);
@@ -401,30 +401,44 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 
 static int aac_slave_configure(struct scsi_device *sdev)
 {
+       struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
        if ((sdev->type == TYPE_DISK) &&
-                       (sdev_channel(sdev) != CONTAINER_CHANNEL)) {
+                       (sdev_channel(sdev) != CONTAINER_CHANNEL) &&
+                       (!aac->jbod || sdev->inq_periph_qual) &&
+                       (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
                if (expose_physicals == 0)
                        return -ENXIO;
-               if (expose_physicals < 0) {
-                       struct aac_dev *aac =
-                               (struct aac_dev *)sdev->host->hostdata;
-                       if (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
-                               sdev->no_uld_attach = 1;
-               }
+               if (expose_physicals < 0)
+                       sdev->no_uld_attach = 1;
        }
        if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
-                       (sdev_channel(sdev) == CONTAINER_CHANNEL)) {
+                       (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
+                       !sdev->no_uld_attach) {
                struct scsi_device * dev;
                struct Scsi_Host *host = sdev->host;
                unsigned num_lsu = 0;
                unsigned num_one = 0;
                unsigned depth;
+               unsigned cid;
 
+               /*
+                * Firmware has an individual device recovery time typically
+                * of 35 seconds, give us a margin.
+                */
+               if (sdev->timeout < (45 * HZ))
+                       sdev->timeout = 45 * HZ;
+               for (cid = 0; cid < aac->maximum_num_containers; ++cid)
+                       if (aac->fsa_dev[cid].valid)
+                               ++num_lsu;
                __shost_for_each_device(dev, host) {
                        if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
-                               (sdev_channel(dev) == CONTAINER_CHANNEL))
-                               ++num_lsu;
-                       else
+                                       (!aac->raid_scsi_mode ||
+                                               (sdev_channel(sdev) != 2)) &&
+                                       !dev->no_uld_attach) {
+                               if ((sdev_channel(dev) != CONTAINER_CHANNEL)
+                                || !aac->fsa_dev[sdev_id(dev)].valid)
+                                       ++num_lsu;
+                       } else
                                ++num_one;
                }
                if (num_lsu == 0)
@@ -435,9 +449,6 @@ static int aac_slave_configure(struct scsi_device *sdev)
                else if (depth < 2)
                        depth = 2;
                scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, depth);
-               if (!(((struct aac_dev *)host->hostdata)->adapter_info.options &
-                               AAC_OPT_NEW_COMM))
-                       blk_queue_max_segment_size(sdev->request_queue, 65536);
        } else
                scsi_adjust_queue_depth(sdev, 0, 1);
 
@@ -481,9 +492,35 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
        return sdev->queue_depth;
 }
 
+static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
+{
+       struct scsi_device * sdev = to_scsi_device(dev);
+       if (sdev_channel(sdev) != CONTAINER_CHANNEL)
+               return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
+                 ? "Hidden\n" : "JBOD");
+       return snprintf(buf, PAGE_SIZE, "%s\n",
+         get_container_type(((struct aac_dev *)(sdev->host->hostdata))
+           ->fsa_dev[sdev_id(sdev)].type));
+}
+
+static struct device_attribute aac_raid_level_attr = {
+       .attr = {
+               .name = "level",
+               .mode = S_IRUGO,
+       },
+       .show = aac_show_raid_level
+};
+
+static struct device_attribute *aac_dev_attrs[] = {
+       &aac_raid_level_attr,
+       NULL,
+};
+
 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
 {
        struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
+       if (!capable(CAP_SYS_RAWIO))
+               return -EPERM;
        return aac_do_ioctl(dev, cmd, arg);
 }
 
@@ -506,17 +543,33 @@ static int aac_eh_abort(struct scsi_cmnd* cmd)
                        break;
        case INQUIRY:
        case READ_CAPACITY:
-       case TEST_UNIT_READY:
                /* Mark associated FIB to not complete, eh handler does this */
                for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
                        struct fib * fib = &aac->fibs[count];
                        if (fib->hw_fib_va->header.XferState &&
+                         (fib->flags & FIB_CONTEXT_FLAG) &&
                          (fib->callback_data == cmd)) {
                                fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
                                cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
                                ret = SUCCESS;
                        }
                }
+               break;
+       case TEST_UNIT_READY:
+               /* Mark associated FIB to not complete, eh handler does this */
+               for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
+                       struct scsi_cmnd * command;
+                       struct fib * fib = &aac->fibs[count];
+                       if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
+                         (fib->flags & FIB_CONTEXT_FLAG) &&
+                         ((command = fib->callback_data)) &&
+                         (command->device == cmd->device)) {
+                               fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
+                               command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
+                               if (command == cmd)
+                                       ret = SUCCESS;
+                       }
+               }
        }
        return ret;
 }
@@ -539,12 +592,13 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
        for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
                struct fib * fib = &aac->fibs[count];
                if (fib->hw_fib_va->header.XferState &&
+                 (fib->flags & FIB_CONTEXT_FLAG) &&
                  (fib->callback_data == cmd)) {
                        fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
                        cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
                }
        }
-       printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n", 
+       printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
                                        AAC_DRIVERNAME);
 
        if ((count = aac_check_health(aac)))
@@ -584,8 +638,11 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
         * support a register, instead of a commanded, reset.
         */
        if ((aac->supplement_adapter_info.SupportedOptions2 &
-         le32_to_cpu(AAC_OPTION_MU_RESET|AAC_OPTION_IGNORE_RESET)) ==
-         le32_to_cpu(AAC_OPTION_MU_RESET))
+          AAC_OPTION_MU_RESET) &&
+         aac_check_reset &&
+         ((aac_check_reset != 1) ||
+          !(aac->supplement_adapter_info.SupportedOptions2 &
+           AAC_OPTION_IGNORE_RESET)))
                aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
        return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
 }
@@ -632,8 +689,8 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
  *     Bugs: Needs locking against parallel ioctls lower down
  *     Bugs: Needs to handle hot plugging
  */
-static int aac_cfg_ioctl(struct inode *inode,  struct file *file,
+
+static int aac_cfg_ioctl(struct inode *inode, struct file *file,
                unsigned int cmd, unsigned long arg)
 {
        if (!capable(CAP_SYS_RAWIO))
@@ -646,7 +703,7 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
 {
        long ret;
        lock_kernel();
-       switch (cmd) { 
+       switch (cmd) {
        case FSACTL_MINIPORT_REV_CHECK:
        case FSACTL_SENDFIB:
        case FSACTL_OPEN_GET_ADAPTER_FIB:
@@ -656,14 +713,14 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
        case FSACTL_QUERY_DISK:
        case FSACTL_DELETE_DISK:
        case FSACTL_FORCE_DELETE_DISK:
-       case FSACTL_GET_CONTAINERS: 
+       case FSACTL_GET_CONTAINERS:
        case FSACTL_SEND_LARGE_FIB:
                ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
                break;
 
        case FSACTL_GET_NEXT_ADAPTER_FIB: {
                struct fib_ioctl __user *f;
-               
+
                f = compat_alloc_user_space(sizeof(*f));
                ret = 0;
                if (clear_user(f, sizeof(*f)))
@@ -676,9 +733,9 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
        }
 
        default:
-               ret = -ENOIOCTLCMD; 
+               ret = -ENOIOCTLCMD;
                break;
-       } 
+       }
        unlock_kernel();
        return ret;
 }
@@ -735,6 +792,25 @@ static ssize_t aac_show_vendor(struct class_device *class_dev,
        return len;
 }
 
+static ssize_t aac_show_flags(struct class_device *class_dev, char *buf)
+{
+       int len = 0;
+       struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+
+       if (nblank(dprintk(x)))
+               len = snprintf(buf, PAGE_SIZE, "dprintk\n");
+#ifdef AAC_DETAILED_STATUS_INFO
+       len += snprintf(buf + len, PAGE_SIZE - len,
+                       "AAC_DETAILED_STATUS_INFO\n");
+#endif
+       if (dev->raw_io_interface && dev->raw_io_64)
+               len += snprintf(buf + len, PAGE_SIZE - len,
+                               "SAI_READ_CAPACITY_16\n");
+       if (dev->jbod)
+               len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
+       return len;
+}
+
 static ssize_t aac_show_kernel_version(struct class_device *class_dev,
                char *buf)
 {
@@ -742,7 +818,7 @@ static ssize_t aac_show_kernel_version(struct class_device *class_dev,
        int len, tmp;
 
        tmp = le32_to_cpu(dev->adapter_info.kernelrev);
-       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
          tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
          le32_to_cpu(dev->adapter_info.kernelbuild));
        return len;
@@ -755,7 +831,7 @@ static ssize_t aac_show_monitor_version(struct class_device *class_dev,
        int len, tmp;
 
        tmp = le32_to_cpu(dev->adapter_info.monitorrev);
-       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
          tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
          le32_to_cpu(dev->adapter_info.monitorbuild));
        return len;
@@ -768,7 +844,7 @@ static ssize_t aac_show_bios_version(struct class_device *class_dev,
        int len, tmp;
 
        tmp = le32_to_cpu(dev->adapter_info.biosrev);
-       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+       len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
          tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
          le32_to_cpu(dev->adapter_info.biosbuild));
        return len;
@@ -844,6 +920,13 @@ static struct class_device_attribute aac_vendor = {
        },
        .show = aac_show_vendor,
 };
+static struct class_device_attribute aac_flags = {
+       .attr = {
+               .name = "flags",
+               .mode = S_IRUGO,
+       },
+       .show = aac_show_flags,
+};
 static struct class_device_attribute aac_kernel_version = {
        .attr = {
                .name = "hba_kernel_version",
@@ -898,6 +981,7 @@ static struct class_device_attribute aac_reset = {
 static struct class_device_attribute *aac_attrs[] = {
        &aac_model,
        &aac_vendor,
+       &aac_flags,
        &aac_kernel_version,
        &aac_monitor_version,
        &aac_bios_version,
@@ -920,32 +1004,32 @@ static const struct file_operations aac_cfg_fops = {
 
 static struct scsi_host_template aac_driver_template = {
        .module                         = THIS_MODULE,
-       .name                           = "AAC",
+       .name                           = "AAC",
        .proc_name                      = AAC_DRIVERNAME,
-       .info                           = aac_info,
-       .ioctl                          = aac_ioctl,
+       .info                           = aac_info,
+       .ioctl                          = aac_ioctl,
 #ifdef CONFIG_COMPAT
        .compat_ioctl                   = aac_compat_ioctl,
 #endif
-       .queuecommand                   = aac_queuecommand,
-       .bios_param                     = aac_biosparm, 
+       .queuecommand                   = aac_queuecommand,
+       .bios_param                     = aac_biosparm,
        .shost_attrs                    = aac_attrs,
        .slave_configure                = aac_slave_configure,
        .change_queue_depth             = aac_change_queue_depth,
+       .sdev_attrs                     = aac_dev_attrs,
        .eh_abort_handler               = aac_eh_abort,
        .eh_host_reset_handler          = aac_eh_reset,
-       .can_queue                      = AAC_NUM_IO_FIB,       
-       .this_id                        = MAXIMUM_NUM_CONTAINERS,
-       .sg_tablesize                   = 16,
-       .max_sectors                    = 128,
+       .can_queue                      = AAC_NUM_IO_FIB,
+       .this_id                        = MAXIMUM_NUM_CONTAINERS,
+       .sg_tablesize                   = 16,
+       .max_sectors                    = 128,
 #if (AAC_NUM_IO_FIB > 256)
        .cmd_per_lun                    = 256,
-#else          
-       .cmd_per_lun                    = AAC_NUM_IO_FIB, 
-#endif 
+#else
+       .cmd_per_lun                    = AAC_NUM_IO_FIB,
+#endif
        .use_clustering                 = ENABLE_CLUSTERING,
-       .use_sg_chaining                = ENABLE_SG_CHAINING,
-       .emulated                       = 1,
+       .emulated                       = 1,
 };
 
 static void __aac_shutdown(struct aac_dev * aac)
@@ -955,6 +1039,8 @@ static void __aac_shutdown(struct aac_dev * aac)
        aac_send_shutdown(aac);
        aac_adapter_disable_int(aac);
        free_irq(aac->pdev->irq, aac);
+       if (aac->msi)
+               pci_disable_msi(aac->pdev);
 }
 
 static int __devinit aac_probe_one(struct pci_dev *pdev,
@@ -979,18 +1065,18 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
                goto out;
        error = -ENODEV;
 
-       if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) || 
+       if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
                        pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
                goto out_disable_pdev;
        /*
         * If the quirk31 bit is set, the adapter needs adapter
         * to driver communication memory to be allocated below 2gig
         */
-       if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) 
+       if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
                if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
                                pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
                        goto out_disable_pdev;
-       
+
        pci_set_master(pdev);
 
        shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
@@ -1003,7 +1089,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
        shost->max_cmd_len = 16;
 
        aac = (struct aac_dev *)shost->hostdata;
-       aac->scsi_host_ptr = shost;     
+       aac->scsi_host_ptr = shost;
        aac->pdev = pdev;
        aac->name = aac_driver_template.name;
        aac->id = shost->unique_id;
@@ -1040,7 +1126,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
        if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
                if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
                        goto out_deinit;
+
        aac->maximum_num_channels = aac_drivers[index].channels;
        error = aac_get_adapter_info(aac);
        if (error < 0)
@@ -1049,34 +1135,38 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
        /*
         * Lets override negotiations and drop the maximum SG limit to 34
         */
-       if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) && 
-                       (aac->scsi_host_ptr->sg_tablesize > 34)) {
-               aac->scsi_host_ptr->sg_tablesize = 34;
-               aac->scsi_host_ptr->max_sectors
-                 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
+       if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
+                       (shost->sg_tablesize > 34)) {
+               shost->sg_tablesize = 34;
+               shost->max_sectors = (shost->sg_tablesize * 8) + 112;
        }
 
        if ((aac_drivers[index].quirks & AAC_QUIRK_17SG) &&
-                       (aac->scsi_host_ptr->sg_tablesize > 17)) {
-               aac->scsi_host_ptr->sg_tablesize = 17;
-               aac->scsi_host_ptr->max_sectors
-                 = (aac->scsi_host_ptr->sg_tablesize * 8) + 112;
+                       (shost->sg_tablesize > 17)) {
+               shost->sg_tablesize = 17;
+               shost->max_sectors = (shost->sg_tablesize * 8) + 112;
        }
 
+       error = pci_set_dma_max_seg_size(pdev,
+               (aac->adapter_info.options & AAC_OPT_NEW_COMM) ?
+                       (shost->max_sectors << 9) : 65536);
+       if (error)
+               goto out_deinit;
+
        /*
-        * Firware printf works only with older firmware.
+        * Firmware printf works only with older firmware.
         */
-       if (aac_drivers[index].quirks & AAC_QUIRK_34SG) 
+       if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
                aac->printf_enabled = 1;
        else
                aac->printf_enabled = 0;
+
        /*
         * max channel will be the physical channels plus 1 virtual channel
         * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
         * physical channels are address by their actual physical number+1
         */
-       if ((aac->nondasd_support == 1) || expose_physicals)
+       if (aac->nondasd_support || expose_physicals || aac->jbod)
                shost->max_channel = aac->maximum_num_channels;
        else
                shost->max_channel = 0;
@@ -1148,10 +1238,10 @@ static void __devexit aac_remove_one(struct pci_dev *pdev)
        kfree(aac->queues);
 
        aac_adapter_ioremap(aac, 0);
-       
+
        kfree(aac->fibs);
        kfree(aac->fsa_dev);
-       
+
        list_del(&aac->entry);
        scsi_host_put(shost);
        pci_disable_device(pdev);
@@ -1166,13 +1256,13 @@ static struct pci_driver aac_pci_driver = {
        .id_table       = aac_pci_tbl,
        .probe          = aac_probe_one,
        .remove         = __devexit_p(aac_remove_one),
-       .shutdown       = aac_shutdown,
+       .shutdown       = aac_shutdown,
 };
 
 static int __init aac_init(void)
 {
        int error;
-       
+
        printk(KERN_INFO "Adaptec %s driver %s\n",
          AAC_DRIVERNAME, aac_driver_version);
 
@@ -1183,7 +1273,7 @@ static int __init aac_init(void)
        aac_cfg_major = register_chrdev( 0, "aac", &aac_cfg_fops);
        if (aac_cfg_major < 0) {
                printk(KERN_WARNING
-                      "aacraid: unable to register \"aac\" device.\n");
+                       "aacraid: unable to register \"aac\" device.\n");
        }
 
        return 0;