Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
[pandora-kernel.git] / drivers / scsi / ipr.c
index e0039df..27acf78 100644 (file)
@@ -91,11 +91,14 @@ static unsigned int ipr_max_speed = 1;
 static int ipr_testmode = 0;
 static unsigned int ipr_fastfail = 0;
 static unsigned int ipr_transop_timeout = IPR_OPERATIONAL_TIMEOUT;
+static unsigned int ipr_enable_cache = 1;
+static unsigned int ipr_debug = 0;
+static int ipr_auto_create = 1;
 static DEFINE_SPINLOCK(ipr_driver_lock);
 
 /* This table describes the differences between DMA controller chips */
 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
-       { /* Gemstone and Citrine */
+       { /* Gemstone, Citrine, and Obsidian */
                .mailbox = 0x0042C,
                .cache_line_size = 0x20,
                {
@@ -130,6 +133,8 @@ static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
 static const struct ipr_chip_t ipr_chip[] = {
        { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
 };
@@ -150,6 +155,12 @@ module_param_named(fastfail, ipr_fastfail, int, 0);
 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
+module_param_named(enable_cache, ipr_enable_cache, int, 0);
+MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
+module_param_named(debug, ipr_debug, int, 0);
+MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
+module_param_named(auto_create, ipr_auto_create, int, 0);
+MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when initialized (default: 1)");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(IPR_DRIVER_VERSION);
 
@@ -285,12 +296,18 @@ struct ipr_error_table_t ipr_error_table[] = {
        "3110: Device bus error, message or command phase"},
        {0x04670400, 0, 1,
        "9091: Incorrect hardware configuration change has been detected"},
+       {0x04678000, 0, 1,
+       "9073: Invalid multi-adapter configuration"},
        {0x046E0000, 0, 1,
        "FFF4: Command to logical unit failed"},
        {0x05240000, 1, 0,
        "Illegal request, invalid request type or request packet"},
        {0x05250000, 0, 0,
        "Illegal request, invalid resource handle"},
+       {0x05258000, 0, 0,
+       "Illegal request, commands not allowed to this device"},
+       {0x05258100, 0, 0,
+       "Illegal request, command not allowed to a secondary adapter"},
        {0x05260000, 0, 0,
        "Illegal request, invalid field in parameter list"},
        {0x05260100, 0, 0,
@@ -299,6 +316,8 @@ struct ipr_error_table_t ipr_error_table[] = {
        "Illegal request, parameter value invalid"},
        {0x052C0000, 0, 0,
        "Illegal request, command sequence error"},
+       {0x052C8000, 1, 0,
+       "Illegal request, dual adapter support not enabled"},
        {0x06040500, 0, 1,
        "9031: Array protection temporarily suspended, protection resuming"},
        {0x06040600, 0, 1,
@@ -315,18 +334,26 @@ struct ipr_error_table_t ipr_error_table[] = {
        "3029: A device replacement has occurred"},
        {0x064C8000, 0, 1,
        "9051: IOA cache data exists for a missing or failed device"},
+       {0x064C8100, 0, 1,
+       "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
        {0x06670100, 0, 1,
        "9025: Disk unit is not supported at its physical location"},
        {0x06670600, 0, 1,
        "3020: IOA detected a SCSI bus configuration error"},
        {0x06678000, 0, 1,
        "3150: SCSI bus configuration error"},
+       {0x06678100, 0, 1,
+       "9074: Asymmetric advanced function disk configuration"},
        {0x06690200, 0, 1,
        "9041: Array protection temporarily suspended"},
        {0x06698200, 0, 1,
        "9042: Corrupt array parity detected on specified device"},
        {0x066B0200, 0, 1,
        "9030: Array no longer protected due to missing or failed disk unit"},
+       {0x066B8000, 0, 1,
+       "9071: Link operational transition"},
+       {0x066B8100, 0, 1,
+       "9072: Link not operational transition"},
        {0x066B8200, 0, 1,
        "9032: Array exposed but still protected"},
        {0x07270000, 0, 0,
@@ -789,7 +816,7 @@ static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
  **/
 static void ipr_init_res_entry(struct ipr_resource_entry *res)
 {
-       res->needs_sync_complete = 1;
+       res->needs_sync_complete = 0;
        res->in_erp = 0;
        res->add_to_ml = 0;
        res->del_from_ml = 0;
@@ -889,28 +916,73 @@ static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
 
 /**
  * ipr_log_vpd - Log the passed VPD to the error log.
- * @vpids:                     vendor/product id struct
- * @serial_num:                serial number string
+ * @vpd:               vendor/product id/sn struct
  *
  * Return value:
  *     none
  **/
-static void ipr_log_vpd(struct ipr_std_inq_vpids *vpids, u8 *serial_num)
+static void ipr_log_vpd(struct ipr_vpd *vpd)
 {
        char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
                    + IPR_SERIAL_NUM_LEN];
 
-       memcpy(buffer, vpids->vendor_id, IPR_VENDOR_ID_LEN);
-       memcpy(buffer + IPR_VENDOR_ID_LEN, vpids->product_id,
+       memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
+       memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
               IPR_PROD_ID_LEN);
        buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
        ipr_err("Vendor/Product ID: %s\n", buffer);
 
-       memcpy(buffer, serial_num, IPR_SERIAL_NUM_LEN);
+       memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
        buffer[IPR_SERIAL_NUM_LEN] = '\0';
        ipr_err("    Serial Number: %s\n", buffer);
 }
 
+/**
+ * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
+ * @vpd:               vendor/product id/sn/wwn struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
+{
+       ipr_log_vpd(&vpd->vpd);
+       ipr_err("    WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
+               be32_to_cpu(vpd->wwid[1]));
+}
+
+/**
+ * ipr_log_enhanced_cache_error - Log a cache error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
+                                        struct ipr_hostrcb *hostrcb)
+{
+       struct ipr_hostrcb_type_12_error *error =
+               &hostrcb->hcam.u.error.u.type_12_error;
+
+       ipr_err("-----Current Configuration-----\n");
+       ipr_err("Cache Directory Card Information:\n");
+       ipr_log_ext_vpd(&error->ioa_vpd);
+       ipr_err("Adapter Card Information:\n");
+       ipr_log_ext_vpd(&error->cfc_vpd);
+
+       ipr_err("-----Expected Configuration-----\n");
+       ipr_err("Cache Directory Card Information:\n");
+       ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
+       ipr_err("Adapter Card Information:\n");
+       ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
+
+       ipr_err("Additional IOA Data: %08X %08X %08X\n",
+                    be32_to_cpu(error->ioa_data[0]),
+                    be32_to_cpu(error->ioa_data[1]),
+                    be32_to_cpu(error->ioa_data[2]));
+}
+
 /**
  * ipr_log_cache_error - Log a cache error.
  * @ioa_cfg:   ioa config struct
@@ -927,17 +999,15 @@ static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
 
        ipr_err("-----Current Configuration-----\n");
        ipr_err("Cache Directory Card Information:\n");
-       ipr_log_vpd(&error->ioa_vpids, error->ioa_sn);
+       ipr_log_vpd(&error->ioa_vpd);
        ipr_err("Adapter Card Information:\n");
-       ipr_log_vpd(&error->cfc_vpids, error->cfc_sn);
+       ipr_log_vpd(&error->cfc_vpd);
 
        ipr_err("-----Expected Configuration-----\n");
        ipr_err("Cache Directory Card Information:\n");
-       ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpids,
-                   error->ioa_last_attached_to_cfc_sn);
+       ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
        ipr_err("Adapter Card Information:\n");
-       ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpids,
-                   error->cfc_last_attached_to_ioa_sn);
+       ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
 
        ipr_err("Additional IOA Data: %08X %08X %08X\n",
                     be32_to_cpu(error->ioa_data[0]),
@@ -945,6 +1015,46 @@ static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
                     be32_to_cpu(error->ioa_data[2]));
 }
 
+/**
+ * ipr_log_enhanced_config_error - Log a configuration error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
+                                         struct ipr_hostrcb *hostrcb)
+{
+       int errors_logged, i;
+       struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
+       struct ipr_hostrcb_type_13_error *error;
+
+       error = &hostrcb->hcam.u.error.u.type_13_error;
+       errors_logged = be32_to_cpu(error->errors_logged);
+
+       ipr_err("Device Errors Detected/Logged: %d/%d\n",
+               be32_to_cpu(error->errors_detected), errors_logged);
+
+       dev_entry = error->dev;
+
+       for (i = 0; i < errors_logged; i++, dev_entry++) {
+               ipr_err_separator;
+
+               ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
+               ipr_log_ext_vpd(&dev_entry->vpd);
+
+               ipr_err("-----New Device Information-----\n");
+               ipr_log_ext_vpd(&dev_entry->new_vpd);
+
+               ipr_err("Cache Directory Card Information:\n");
+               ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
+
+               ipr_err("Adapter Card Information:\n");
+               ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
+       }
+}
+
 /**
  * ipr_log_config_error - Log a configuration error.
  * @ioa_cfg:   ioa config struct
@@ -966,30 +1076,22 @@ static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
        ipr_err("Device Errors Detected/Logged: %d/%d\n",
                be32_to_cpu(error->errors_detected), errors_logged);
 
-       dev_entry = error->dev_entry;
+       dev_entry = error->dev;
 
        for (i = 0; i < errors_logged; i++, dev_entry++) {
                ipr_err_separator;
 
-               if (dev_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                       ipr_err("Device %d: missing\n", i + 1);
-               } else {
-                       ipr_err("Device %d: %d:%d:%d:%d\n", i + 1,
-                               ioa_cfg->host->host_no, dev_entry->dev_res_addr.bus,
-                               dev_entry->dev_res_addr.target, dev_entry->dev_res_addr.lun);
-               }
-               ipr_log_vpd(&dev_entry->dev_vpids, dev_entry->dev_sn);
+               ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
+               ipr_log_vpd(&dev_entry->vpd);
 
                ipr_err("-----New Device Information-----\n");
-               ipr_log_vpd(&dev_entry->new_dev_vpids, dev_entry->new_dev_sn);
+               ipr_log_vpd(&dev_entry->new_vpd);
 
                ipr_err("Cache Directory Card Information:\n");
-               ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpids,
-                           dev_entry->ioa_last_with_dev_sn);
+               ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
 
                ipr_err("Adapter Card Information:\n");
-               ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpids,
-                           dev_entry->cfc_last_with_dev_sn);
+               ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
 
                ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
                        be32_to_cpu(dev_entry->ioa_data[0]),
@@ -1000,6 +1102,57 @@ static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
        }
 }
 
+/**
+ * ipr_log_enhanced_array_error - Log an array configuration error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
+                                        struct ipr_hostrcb *hostrcb)
+{
+       int i, num_entries;
+       struct ipr_hostrcb_type_14_error *error;
+       struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
+       const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
+
+       error = &hostrcb->hcam.u.error.u.type_14_error;
+
+       ipr_err_separator;
+
+       ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
+               error->protection_level,
+               ioa_cfg->host->host_no,
+               error->last_func_vset_res_addr.bus,
+               error->last_func_vset_res_addr.target,
+               error->last_func_vset_res_addr.lun);
+
+       ipr_err_separator;
+
+       array_entry = error->array_member;
+       num_entries = min_t(u32, be32_to_cpu(error->num_entries),
+                           sizeof(error->array_member));
+
+       for (i = 0; i < num_entries; i++, array_entry++) {
+               if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
+                       continue;
+
+               if (be32_to_cpu(error->exposed_mode_adn) == i)
+                       ipr_err("Exposed Array Member %d:\n", i);
+               else
+                       ipr_err("Array Member %d:\n", i);
+
+               ipr_log_ext_vpd(&array_entry->vpd);
+               ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
+               ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
+                                "Expected Location");
+
+               ipr_err_separator;
+       }
+}
+
 /**
  * ipr_log_array_error - Log an array configuration error.
  * @ioa_cfg:   ioa config struct
@@ -1032,36 +1185,19 @@ static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
        array_entry = error->array_member;
 
        for (i = 0; i < 18; i++) {
-               if (!memcmp(array_entry->serial_num, zero_sn, IPR_SERIAL_NUM_LEN))
+               if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
                        continue;
 
-               if (be32_to_cpu(error->exposed_mode_adn) == i) {
+               if (be32_to_cpu(error->exposed_mode_adn) == i)
                        ipr_err("Exposed Array Member %d:\n", i);
-               } else {
+               else
                        ipr_err("Array Member %d:\n", i);
-               }
-
-               ipr_log_vpd(&array_entry->vpids, array_entry->serial_num);
 
-               if (array_entry->dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                       ipr_err("Current Location: unknown\n");
-               } else {
-                       ipr_err("Current Location: %d:%d:%d:%d\n",
-                               ioa_cfg->host->host_no,
-                               array_entry->dev_res_addr.bus,
-                               array_entry->dev_res_addr.target,
-                               array_entry->dev_res_addr.lun);
-               }
+               ipr_log_vpd(&array_entry->vpd);
 
-               if (array_entry->expected_dev_res_addr.bus >= IPR_MAX_NUM_BUSES) {
-                       ipr_err("Expected Location: unknown\n");
-               } else {
-                       ipr_err("Expected Location: %d:%d:%d:%d\n",
-                               ioa_cfg->host->host_no,
-                               array_entry->expected_dev_res_addr.bus,
-                               array_entry->expected_dev_res_addr.target,
-                               array_entry->expected_dev_res_addr.lun);
-               }
+               ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
+               ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
+                                "Expected Location");
 
                ipr_err_separator;
 
@@ -1073,34 +1209,94 @@ static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
 }
 
 /**
- * ipr_log_generic_error - Log an adapter error.
- * @ioa_cfg:   ioa config struct
- * @hostrcb:   hostrcb struct
+ * ipr_log_hex_data - Log additional hex IOA error data.
+ * @data:              IOA error data
+ * @len:               data length
  *
  * Return value:
  *     none
  **/
-static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
-                                 struct ipr_hostrcb *hostrcb)
+static void ipr_log_hex_data(u32 *data, int len)
 {
        int i;
-       int ioa_data_len = be32_to_cpu(hostrcb->hcam.length);
 
-       if (ioa_data_len == 0)
+       if (len == 0)
                return;
 
-       ipr_err("IOA Error Data:\n");
-       ipr_err("Offset    0 1 2 3  4 5 6 7  8 9 A B  C D E F\n");
-
-       for (i = 0; i < ioa_data_len / 4; i += 4) {
+       for (i = 0; i < len / 4; i += 4) {
                ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
-                       be32_to_cpu(hostrcb->hcam.u.raw.data[i]),
-                       be32_to_cpu(hostrcb->hcam.u.raw.data[i+1]),
-                       be32_to_cpu(hostrcb->hcam.u.raw.data[i+2]),
-                       be32_to_cpu(hostrcb->hcam.u.raw.data[i+3]));
+                       be32_to_cpu(data[i]),
+                       be32_to_cpu(data[i+1]),
+                       be32_to_cpu(data[i+2]),
+                       be32_to_cpu(data[i+3]));
        }
 }
 
+/**
+ * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
+                                           struct ipr_hostrcb *hostrcb)
+{
+       struct ipr_hostrcb_type_17_error *error;
+
+       error = &hostrcb->hcam.u.error.u.type_17_error;
+       error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
+
+       ipr_err("%s\n", error->failure_reason);
+       ipr_err("Remote Adapter VPD:\n");
+       ipr_log_ext_vpd(&error->vpd);
+       ipr_log_hex_data(error->data,
+                        be32_to_cpu(hostrcb->hcam.length) -
+                        (offsetof(struct ipr_hostrcb_error, u) +
+                         offsetof(struct ipr_hostrcb_type_17_error, data)));
+}
+
+/**
+ * ipr_log_dual_ioa_error - Log a dual adapter error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
+                                  struct ipr_hostrcb *hostrcb)
+{
+       struct ipr_hostrcb_type_07_error *error;
+
+       error = &hostrcb->hcam.u.error.u.type_07_error;
+       error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
+
+       ipr_err("%s\n", error->failure_reason);
+       ipr_err("Remote Adapter VPD:\n");
+       ipr_log_vpd(&error->vpd);
+       ipr_log_hex_data(error->data,
+                        be32_to_cpu(hostrcb->hcam.length) -
+                        (offsetof(struct ipr_hostrcb_error, u) +
+                         offsetof(struct ipr_hostrcb_type_07_error, data)));
+}
+
+/**
+ * ipr_log_generic_error - Log an adapter error.
+ * @ioa_cfg:   ioa config struct
+ * @hostrcb:   hostrcb struct
+ *
+ * Return value:
+ *     none
+ **/
+static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
+                                 struct ipr_hostrcb *hostrcb)
+{
+       ipr_log_hex_data(hostrcb->hcam.u.raw.data,
+                        be32_to_cpu(hostrcb->hcam.length));
+}
+
 /**
  * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
  * @ioasc:     IOASC
@@ -1172,11 +1368,10 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
 
        if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
                return;
+       if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
+               hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
 
        switch (hostrcb->hcam.overlay_id) {
-       case IPR_HOST_RCB_OVERLAY_ID_1:
-               ipr_log_generic_error(ioa_cfg, hostrcb);
-               break;
        case IPR_HOST_RCB_OVERLAY_ID_2:
                ipr_log_cache_error(ioa_cfg, hostrcb);
                break;
@@ -1187,13 +1382,26 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
        case IPR_HOST_RCB_OVERLAY_ID_6:
                ipr_log_array_error(ioa_cfg, hostrcb);
                break;
-       case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
-               ipr_log_generic_error(ioa_cfg, hostrcb);
+       case IPR_HOST_RCB_OVERLAY_ID_7:
+               ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
+               break;
+       case IPR_HOST_RCB_OVERLAY_ID_12:
+               ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
                break;
+       case IPR_HOST_RCB_OVERLAY_ID_13:
+               ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
+               break;
+       case IPR_HOST_RCB_OVERLAY_ID_14:
+       case IPR_HOST_RCB_OVERLAY_ID_16:
+               ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
+               break;
+       case IPR_HOST_RCB_OVERLAY_ID_17:
+               ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
+               break;
+       case IPR_HOST_RCB_OVERLAY_ID_1:
+       case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
        default:
-               dev_err(&ioa_cfg->pdev->dev,
-                       "Unknown error received. Overlay ID: %d\n",
-                       hostrcb->hcam.overlay_id);
+               ipr_log_generic_error(ioa_cfg, hostrcb);
                break;
        }
 }
@@ -1924,7 +2132,7 @@ restart:
        }
 
        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-       kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE, NULL);
+       kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE);
        LEAVE;
 }
 
@@ -1972,6 +2180,103 @@ static struct bin_attribute ipr_trace_attr = {
 };
 #endif
 
+static const struct {
+       enum ipr_cache_state state;
+       char *name;
+} cache_state [] = {
+       { CACHE_NONE, "none" },
+       { CACHE_DISABLED, "disabled" },
+       { CACHE_ENABLED, "enabled" }
+};
+
+/**
+ * ipr_show_write_caching - Show the write caching attribute
+ * @class_dev: class device struct
+ * @buf:               buffer
+ *
+ * Return value:
+ *     number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf)
+{
+       struct Scsi_Host *shost = class_to_shost(class_dev);
+       struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+       unsigned long lock_flags = 0;
+       int i, len = 0;
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+       for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
+               if (cache_state[i].state == ioa_cfg->cache_state) {
+                       len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
+                       break;
+               }
+       }
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       return len;
+}
+
+
+/**
+ * ipr_store_write_caching - Enable/disable adapter write cache
+ * @class_dev: class_device struct
+ * @buf:               buffer
+ * @count:             buffer size
+ *
+ * This function will enable/disable adapter write cache.
+ *
+ * Return value:
+ *     count on success / other on failure
+ **/
+static ssize_t ipr_store_write_caching(struct class_device *class_dev,
+                                       const char *buf, size_t count)
+{
+       struct Scsi_Host *shost = class_to_shost(class_dev);
+       struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+       unsigned long lock_flags = 0;
+       enum ipr_cache_state new_state = CACHE_INVALID;
+       int i;
+
+       if (!capable(CAP_SYS_ADMIN))
+               return -EACCES;
+       if (ioa_cfg->cache_state == CACHE_NONE)
+               return -EINVAL;
+
+       for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
+               if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
+                       new_state = cache_state[i].state;
+                       break;
+               }
+       }
+
+       if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
+               return -EINVAL;
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+       if (ioa_cfg->cache_state == new_state) {
+               spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+               return count;
+       }
+
+       ioa_cfg->cache_state = new_state;
+       dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
+                new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
+       if (!ioa_cfg->in_reset_reload)
+               ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+       return count;
+}
+
+static struct class_device_attribute ipr_ioa_cache_attr = {
+       .attr = {
+               .name =         "write_cache",
+               .mode =         S_IRUGO | S_IWUSR,
+       },
+       .show = ipr_show_write_caching,
+       .store = ipr_store_write_caching
+};
+
 /**
  * ipr_show_fw_version - Show the firmware version
  * @class_dev: class device struct
@@ -2111,6 +2416,74 @@ static struct class_device_attribute ipr_diagnostics_attr = {
        .store = ipr_store_diagnostics
 };
 
+/**
+ * ipr_show_adapter_state - Show the adapter's state
+ * @class_dev: class device struct
+ * @buf:               buffer
+ *
+ * Return value:
+ *     number of bytes printed to buffer
+ **/
+static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf)
+{
+       struct Scsi_Host *shost = class_to_shost(class_dev);
+       struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+       unsigned long lock_flags = 0;
+       int len;
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+       if (ioa_cfg->ioa_is_dead)
+               len = snprintf(buf, PAGE_SIZE, "offline\n");
+       else
+               len = snprintf(buf, PAGE_SIZE, "online\n");
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       return len;
+}
+
+/**
+ * ipr_store_adapter_state - Change adapter state
+ * @class_dev: class_device struct
+ * @buf:               buffer
+ * @count:             buffer size
+ *
+ * This function will change the adapter's state.
+ *
+ * Return value:
+ *     count on success / other on failure
+ **/
+static ssize_t ipr_store_adapter_state(struct class_device *class_dev,
+                                      const char *buf, size_t count)
+{
+       struct Scsi_Host *shost = class_to_shost(class_dev);
+       struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
+       unsigned long lock_flags;
+       int result = count;
+
+       if (!capable(CAP_SYS_ADMIN))
+               return -EACCES;
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+       if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
+               ioa_cfg->ioa_is_dead = 0;
+               ioa_cfg->reset_retries = 0;
+               ioa_cfg->in_ioa_bringdown = 0;
+               ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+       }
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+       return result;
+}
+
+static struct class_device_attribute ipr_ioa_state_attr = {
+       .attr = {
+               .name =         "state",
+               .mode =         S_IRUGO | S_IWUSR,
+       },
+       .show = ipr_show_adapter_state,
+       .store = ipr_store_adapter_state
+};
+
 /**
  * ipr_store_reset_adapter - Reset the adapter
  * @class_dev: class_device struct
@@ -2183,7 +2556,7 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
                num_elem = buf_len / bsize_elem;
 
        /* Allocate a scatter/gather list for the DMA */
-       sglist = kmalloc(sizeof(struct ipr_sglist) +
+       sglist = kzalloc(sizeof(struct ipr_sglist) +
                         (sizeof(struct scatterlist) * (num_elem - 1)),
                         GFP_KERNEL);
 
@@ -2192,9 +2565,6 @@ static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
                return NULL;
        }
 
-       memset(sglist, 0, sizeof(struct ipr_sglist) +
-              (sizeof(struct scatterlist) * (num_elem - 1)));
-
        scatterlist = sglist->scatterlist;
 
        sglist->order = order;
@@ -2289,31 +2659,24 @@ static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
 }
 
 /**
- * ipr_map_ucode_buffer - Map a microcode download buffer
+ * ipr_build_ucode_ioadl - Build a microcode download IOADL
  * @ipr_cmd:   ipr command struct
  * @sglist:            scatter/gather list
- * @len:               total length of download buffer
  *
- * Maps a microcode download scatter/gather list for DMA and
- * builds the IOADL.
+ * Builds a microcode download IOA data list (IOADL).
  *
- * Return value:
- *     0 on success / -EIO on failure
  **/
-static int ipr_map_ucode_buffer(struct ipr_cmnd *ipr_cmd,
-                               struct ipr_sglist *sglist, int len)
+static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
+                                 struct ipr_sglist *sglist)
 {
-       struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
        struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
        struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
        struct scatterlist *scatterlist = sglist->scatterlist;
        int i;
 
-       ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, scatterlist,
-                                        sglist->num_sg, DMA_TO_DEVICE);
-
+       ipr_cmd->dma_use_sg = sglist->num_dma_sg;
        ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
-       ioarcb->write_data_transfer_length = cpu_to_be32(len);
+       ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
        ioarcb->write_ioadl_len =
                cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
 
@@ -2324,15 +2687,52 @@ static int ipr_map_ucode_buffer(struct ipr_cmnd *ipr_cmd,
                        cpu_to_be32(sg_dma_address(&scatterlist[i]));
        }
 
-       if (likely(ipr_cmd->dma_use_sg)) {
-               ioadl[i-1].flags_and_data_len |=
-                       cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+       ioadl[i-1].flags_and_data_len |=
+               cpu_to_be32(IPR_IOADL_FLAGS_LAST);
+}
+
+/**
+ * ipr_update_ioa_ucode - Update IOA's microcode
+ * @ioa_cfg:   ioa config struct
+ * @sglist:            scatter/gather list
+ *
+ * Initiate an adapter reset to update the IOA's microcode
+ *
+ * Return value:
+ *     0 on success / -EIO on failure
+ **/
+static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
+                               struct ipr_sglist *sglist)
+{
+       unsigned long lock_flags;
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+
+       if (ioa_cfg->ucode_sglist) {
+               spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+               dev_err(&ioa_cfg->pdev->dev,
+                       "Microcode download already in progress\n");
+               return -EIO;
        }
-       else {
-               dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
+
+       sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
+                                       sglist->num_sg, DMA_TO_DEVICE);
+
+       if (!sglist->num_dma_sg) {
+               spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+               dev_err(&ioa_cfg->pdev->dev,
+                       "Failed to map microcode download buffer!\n");
                return -EIO;
        }
 
+       ioa_cfg->ucode_sglist = sglist;
+       ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
+
+       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
+       ioa_cfg->ucode_sglist = NULL;
+       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
        return 0;
 }
 
@@ -2355,7 +2755,6 @@ static ssize_t ipr_store_update_fw(struct class_device *class_dev,
        struct ipr_ucode_image_header *image_hdr;
        const struct firmware *fw_entry;
        struct ipr_sglist *sglist;
-       unsigned long lock_flags;
        char fname[100];
        char *src;
        int len, result, dnld_size;
@@ -2396,35 +2795,17 @@ static ssize_t ipr_store_update_fw(struct class_device *class_dev,
        if (result) {
                dev_err(&ioa_cfg->pdev->dev,
                        "Microcode buffer copy to DMA buffer failed\n");
-               ipr_free_ucode_buffer(sglist);
-               release_firmware(fw_entry);
-               return result;
-       }
-
-       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-
-       if (ioa_cfg->ucode_sglist) {
-               spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-               dev_err(&ioa_cfg->pdev->dev,
-                       "Microcode download already in progress\n");
-               ipr_free_ucode_buffer(sglist);
-               release_firmware(fw_entry);
-               return -EIO;
+               goto out;
        }
 
-       ioa_cfg->ucode_sglist = sglist;
-       ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
-       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-       wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
-
-       spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-       ioa_cfg->ucode_sglist = NULL;
-       spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
+       result = ipr_update_ioa_ucode(ioa_cfg, sglist);
 
+       if (!result)
+               result = count;
+out:
        ipr_free_ucode_buffer(sglist);
        release_firmware(fw_entry);
-
-       return count;
+       return result;
 }
 
 static struct class_device_attribute ipr_update_fw_attr = {
@@ -2439,8 +2820,10 @@ static struct class_device_attribute *ipr_ioa_attrs[] = {
        &ipr_fw_version_attr,
        &ipr_log_level_attr,
        &ipr_diagnostics_attr,
+       &ipr_ioa_state_attr,
        &ipr_ioa_reset_attr,
        &ipr_update_fw_attr,
+       &ipr_ioa_cache_attr,
        NULL,
 };
 
@@ -2548,14 +2931,13 @@ static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
        unsigned long lock_flags = 0;
 
        ENTER;
-       dump = kmalloc(sizeof(struct ipr_dump), GFP_KERNEL);
+       dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
 
        if (!dump) {
                ipr_err("Dump memory allocation failed\n");
                return -ENOMEM;
        }
 
-       memset(dump, 0, sizeof(struct ipr_dump));
        kref_init(&dump->kref);
        dump->ioa_cfg = ioa_cfg;
 
@@ -2824,8 +3206,10 @@ static int ipr_slave_configure(struct scsi_device *sdev)
        if (res) {
                if (ipr_is_af_dasd_device(res))
                        sdev->type = TYPE_RAID;
-               if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res))
+               if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
                        sdev->scsi_level = 4;
+                       sdev->no_uld_attach = 1;
+               }
                if (ipr_is_vset_device(res)) {
                        sdev->timeout = IPR_VSET_RW_TIMEOUT;
                        blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
@@ -2848,13 +3232,14 @@ static int ipr_slave_configure(struct scsi_device *sdev)
  * handling new commands.
  *
  * Return value:
- *     0 on success
+ *     0 on success / -ENXIO if device does not exist
  **/
 static int ipr_slave_alloc(struct scsi_device *sdev)
 {
        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
        struct ipr_resource_entry *res;
        unsigned long lock_flags;
+       int rc = -ENXIO;
 
        sdev->hostdata = NULL;
 
@@ -2868,14 +3253,16 @@ static int ipr_slave_alloc(struct scsi_device *sdev)
                        res->add_to_ml = 0;
                        res->in_erp = 0;
                        sdev->hostdata = res;
-                       res->needs_sync_complete = 1;
+                       if (!ipr_is_naca_model(res))
+                               res->needs_sync_complete = 1;
+                       rc = 0;
                        break;
                }
        }
 
        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
 
-       return 0;
+       return rc;
 }
 
 /**
@@ -2939,7 +3326,7 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
        ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
        res = scsi_cmd->device->hostdata;
 
-       if (!res || (!ipr_is_gscsi(res) && !ipr_is_vset_device(res)))
+       if (!res)
                return FAILED;
 
        /*
@@ -3131,7 +3518,8 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
        }
 
        list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-       res->needs_sync_complete = 1;
+       if (!ipr_is_naca_model(res))
+               res->needs_sync_complete = 1;
 
        LEAVE;
        return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
@@ -3435,7 +3823,8 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
        }
 
        if (res) {
-               res->needs_sync_complete = 1;
+               if (!ipr_is_naca_model(res))
+                       res->needs_sync_complete = 1;
                res->in_erp = 0;
        }
        ipr_unmap_sglist(ioa_cfg, ipr_cmd);
@@ -3704,6 +4093,30 @@ static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
        }
 }
 
+/**
+ * ipr_get_autosense - Copy autosense data to sense buffer
+ * @ipr_cmd:   ipr command struct
+ *
+ * This function copies the autosense buffer to the buffer
+ * in the scsi_cmd, if there is autosense available.
+ *
+ * Return value:
+ *     1 if autosense was available / 0 if not
+ **/
+static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
+{
+       struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
+
+       if ((be32_to_cpu(ioasa->ioasc_specific) &
+            (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0)
+               return 0;
+
+       memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
+              min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
+                  SCSI_SENSE_BUFFERSIZE));
+       return 1;
+}
+
 /**
  * ipr_erp_start - Process an error response for a SCSI op
  * @ioa_cfg:   ioa config struct
@@ -3734,14 +4147,19 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 
        switch (ioasc & IPR_IOASC_IOASC_MASK) {
        case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
-               scsi_cmd->result |= (DID_IMM_RETRY << 16);
+               if (ipr_is_naca_model(res))
+                       scsi_cmd->result |= (DID_ABORT << 16);
+               else
+                       scsi_cmd->result |= (DID_IMM_RETRY << 16);
                break;
        case IPR_IOASC_IR_RESOURCE_HANDLE:
+       case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
                scsi_cmd->result |= (DID_NO_CONNECT << 16);
                break;
        case IPR_IOASC_HW_SEL_TIMEOUT:
                scsi_cmd->result |= (DID_NO_CONNECT << 16);
-               res->needs_sync_complete = 1;
+               if (!ipr_is_naca_model(res))
+                       res->needs_sync_complete = 1;
                break;
        case IPR_IOASC_SYNC_REQUIRED:
                if (!res->in_erp)
@@ -3749,6 +4167,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                scsi_cmd->result |= (DID_IMM_RETRY << 16);
                break;
        case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
+       case IPR_IOASA_IR_DUAL_IOA_DISABLED:
                scsi_cmd->result |= (DID_PASSTHROUGH << 16);
                break;
        case IPR_IOASC_BUS_WAS_RESET:
@@ -3760,21 +4179,27 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
                if (!res->resetting_device)
                        scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
                scsi_cmd->result |= (DID_ERROR << 16);
-               res->needs_sync_complete = 1;
+               if (!ipr_is_naca_model(res))
+                       res->needs_sync_complete = 1;
                break;
        case IPR_IOASC_HW_DEV_BUS_STATUS:
                scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
                if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
-                       ipr_erp_cancel_all(ipr_cmd);
-                       return;
+                       if (!ipr_get_autosense(ipr_cmd)) {
+                               if (!ipr_is_naca_model(res)) {
+                                       ipr_erp_cancel_all(ipr_cmd);
+                                       return;
+                               }
+                       }
                }
-               res->needs_sync_complete = 1;
+               if (!ipr_is_naca_model(res))
+                       res->needs_sync_complete = 1;
                break;
        case IPR_IOASC_NR_INIT_CMD_REQUIRED:
                break;
        default:
                scsi_cmd->result |= (DID_ERROR << 16);
-               if (!ipr_is_vset_device(res))
+               if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
                        res->needs_sync_complete = 1;
                break;
        }
@@ -4073,6 +4498,7 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
        ioa_cfg->in_reset_reload = 0;
        ioa_cfg->allow_cmds = 1;
        ioa_cfg->reset_cmd = NULL;
+       ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
 
        list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
                if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
@@ -4146,7 +4572,7 @@ static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
        ipr_cmd->job_step = ipr_ioa_reset_done;
 
        list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
-               if (!ipr_is_af_dasd_device(res))
+               if (!IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data))
                        continue;
 
                ipr_cmd->u.res = res;
@@ -4178,6 +4604,36 @@ static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
        return IPR_RC_JOB_CONTINUE;
 }
 
+/**
+ * ipr_setup_write_cache - Disable write cache if needed
+ * @ipr_cmd:   ipr command struct
+ *
+ * This function sets up adapters write cache to desired setting
+ *
+ * Return value:
+ *     IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
+{
+       struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+
+       ipr_cmd->job_step = ipr_set_supported_devs;
+       ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
+                                   struct ipr_resource_entry, queue);
+
+       if (ioa_cfg->cache_state != CACHE_DISABLED)
+               return IPR_RC_JOB_CONTINUE;
+
+       ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
+       ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
+       ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
+       ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
+
+       ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
+
+       return IPR_RC_JOB_RETURN;
+}
+
 /**
  * ipr_get_mode_page - Locate specified mode page
  * @mode_pages:        mode page buffer
@@ -4389,10 +4845,7 @@ static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
                              ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
                              length);
 
-       ipr_cmd->job_step = ipr_set_supported_devs;
-       ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
-                                   struct ipr_resource_entry, queue);
-
+       ipr_cmd->job_step = ipr_setup_write_cache;
        ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
 
        LEAVE;
@@ -4430,6 +4883,51 @@ static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
        ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
 }
 
+/**
+ * ipr_reset_cmd_failed - Handle failure of IOA reset command
+ * @ipr_cmd:   ipr command struct
+ *
+ * This function handles the failure of an IOA bringup command.
+ *
+ * Return value:
+ *     IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
+{
+       struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+       u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+       dev_err(&ioa_cfg->pdev->dev,
+               "0x%02X failed with IOASC: 0x%08X\n",
+               ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
+
+       ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+       list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+       return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
+ * @ipr_cmd:   ipr command struct
+ *
+ * This function handles the failure of a Mode Sense to the IOAFP.
+ * Some adapters do not handle all mode pages.
+ *
+ * Return value:
+ *     IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
+{
+       u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+
+       if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
+               ipr_cmd->job_step = ipr_setup_write_cache;
+               return IPR_RC_JOB_CONTINUE;
+       }
+
+       return ipr_reset_cmd_failed(ipr_cmd);
+}
+
 /**
  * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
  * @ipr_cmd:   ipr command struct
@@ -4451,6 +4949,7 @@ static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
                             sizeof(struct ipr_mode_pages));
 
        ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
+       ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
 
        ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
 
@@ -4611,6 +5110,27 @@ static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
        LEAVE;
 }
 
+/**
+ * ipr_inquiry_page_supported - Is the given inquiry page supported
+ * @page0:             inquiry page 0 buffer
+ * @page:              page code.
+ *
+ * This function determines if the specified inquiry page is supported.
+ *
+ * Return value:
+ *     1 if page is supported / 0 if not
+ **/
+static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
+{
+       int i;
+
+       for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
+               if (page0->page[i] == page)
+                       return 1;
+
+       return 0;
+}
+
 /**
  * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
  * @ipr_cmd:   ipr command struct
@@ -4622,6 +5142,36 @@ static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
  *     IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
  **/
 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
+{
+       struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
+       struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
+
+       ENTER;
+
+       if (!ipr_inquiry_page_supported(page0, 1))
+               ioa_cfg->cache_state = CACHE_NONE;
+
+       ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
+
+       ipr_ioafp_inquiry(ipr_cmd, 1, 3,
+                         ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
+                         sizeof(struct ipr_inquiry_page3));
+
+       LEAVE;
+       return IPR_RC_JOB_RETURN;
+}
+
+/**
+ * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
+ * @ipr_cmd:   ipr command struct
+ *
+ * This function sends a Page 0 inquiry to the adapter
+ * to retrieve supported inquiry pages.
+ *
+ * Return value:
+ *     IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
+ **/
+static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
 {
        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
        char type[5];
@@ -4633,11 +5183,11 @@ static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
        type[4] = '\0';
        ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
 
-       ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
+       ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
 
-       ipr_ioafp_inquiry(ipr_cmd, 1, 3,
-                         ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
-                         sizeof(struct ipr_inquiry_page3));
+       ipr_ioafp_inquiry(ipr_cmd, 1, 0,
+                         ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
+                         sizeof(struct ipr_inquiry_page0));
 
        LEAVE;
        return IPR_RC_JOB_RETURN;
@@ -4657,7 +5207,7 @@ static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
        ENTER;
-       ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
+       ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
 
        ipr_ioafp_inquiry(ipr_cmd, 0, 0,
                          ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
@@ -4815,7 +5365,7 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
        }
 
        /* Enable destructive diagnostics on IOA */
-       writel(IPR_DOORBELL, ioa_cfg->regs.set_uproc_interrupt_reg);
+       writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
 
        writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
        int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
@@ -5147,12 +5697,7 @@ static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
        ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
        ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
 
-       if (ipr_map_ucode_buffer(ipr_cmd, sglist, sglist->buffer_len)) {
-               dev_err(&ioa_cfg->pdev->dev,
-                       "Failed to map microcode download buffer\n");
-               return IPR_RC_JOB_CONTINUE;
-       }
-
+       ipr_build_ucode_ioadl(ipr_cmd, sglist);
        ipr_cmd->job_step = ipr_reset_ucode_download_done;
 
        ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
@@ -5217,7 +5762,6 @@ static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
 {
        u32 rc, ioasc;
-       unsigned long scratch = ipr_cmd->u.scratch;
        struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
        do {
@@ -5233,17 +5777,13 @@ static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
                }
 
                if (IPR_IOASC_SENSE_KEY(ioasc)) {
-                       dev_err(&ioa_cfg->pdev->dev,
-                               "0x%02X failed with IOASC: 0x%08X\n",
-                               ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
-
-                       ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
-                       list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-                       return;
+                       rc = ipr_cmd->job_step_failed(ipr_cmd);
+                       if (rc == IPR_RC_JOB_RETURN)
+                               return;
                }
 
                ipr_reinit_ipr_cmnd(ipr_cmd);
-               ipr_cmd->u.scratch = scratch;
+               ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
                rc = ipr_cmd->job_step(ipr_cmd);
        } while(rc == IPR_RC_JOB_CONTINUE);
 }
@@ -5347,7 +5887,12 @@ static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
        ENTER;
        spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
        dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
-       _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, IPR_SHUTDOWN_NONE);
+       if (ioa_cfg->needs_hard_reset) {
+               ioa_cfg->needs_hard_reset = 0;
+               ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+       } else
+               _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
+                                       IPR_SHUTDOWN_NONE);
 
        spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
        wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
@@ -5517,15 +6062,12 @@ static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
        int i, rc = -ENOMEM;
 
        ENTER;
-       ioa_cfg->res_entries = kmalloc(sizeof(struct ipr_resource_entry) *
+       ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
                                       IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
 
        if (!ioa_cfg->res_entries)
                goto out;
 
-       memset(ioa_cfg->res_entries, 0,
-              sizeof(struct ipr_resource_entry) * IPR_MAX_PHYSICAL_DEVS);
-
        for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
                list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
 
@@ -5566,15 +6108,12 @@ static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
                list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
        }
 
-       ioa_cfg->trace = kmalloc(sizeof(struct ipr_trace_entry) *
+       ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
                                 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
 
        if (!ioa_cfg->trace)
                goto out_free_hostrcb_dma;
 
-       memset(ioa_cfg->trace, 0,
-              sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES);
-
        rc = 0;
 out:
        LEAVE;
@@ -5642,6 +6181,9 @@ static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
        ioa_cfg->host = host;
        ioa_cfg->pdev = pdev;
        ioa_cfg->log_level = ipr_log_level;
+       ioa_cfg->doorbell = IPR_DOORBELL;
+       if (!ipr_auto_create)
+               ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
        sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
        sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
        sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
@@ -5660,6 +6202,10 @@ static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
        INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread, ioa_cfg);
        init_waitqueue_head(&ioa_cfg->reset_wait_q);
        ioa_cfg->sdt_state = INACTIVE;
+       if (ipr_enable_cache)
+               ioa_cfg->cache_state = CACHE_ENABLED;
+       else
+               ioa_cfg->cache_state = CACHE_DISABLED;
 
        ipr_initialize_bus_attr(ioa_cfg);
 
@@ -5723,6 +6269,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
        unsigned long ipr_regs_pci;
        void __iomem *ipr_regs;
        u32 rc = PCIBIOS_SUCCESSFUL;
+       volatile u32 mask, uproc;
 
        ENTER;
 
@@ -5815,6 +6362,15 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
                goto cleanup_nomem;
        }
 
+       /*
+        * If HRRQ updated interrupt is not masked, or reset alert is set,
+        * the card is in an unknown state and needs a hard reset
+        */
+       mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
+       uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
+       if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
+               ioa_cfg->needs_hard_reset = 1;
+
        ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
        rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg);
 
@@ -6008,6 +6564,7 @@ static int __devinit ipr_probe(struct pci_dev *pdev,
        ipr_scan_vsets(ioa_cfg);
        scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
        ioa_cfg->allow_ml_add_del = 1;
+       ioa_cfg->host->max_channel = IPR_VSET_BUS;
        schedule_work(&ioa_cfg->work_q);
        return 0;
 }
@@ -6055,12 +6612,30 @@ static struct pci_device_id ipr_pci_table[] __devinitdata = {
        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
                PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A,
              0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
+               PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B,
+               0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
+             PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A,
+             0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
+             PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
+             0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+             PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A,
+             0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
+       { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
+             PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B,
+             0, 0, (kernel_ulong_t)&ipr_chip_cfg[0] },
        { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
                PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780,
                0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
        { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
                PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E,
                0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
+       { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
+               PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F,
+               0, 0, (kernel_ulong_t)&ipr_chip_cfg[1] },
        { }
 };
 MODULE_DEVICE_TABLE(pci, ipr_pci_table);