Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI update from James Bottomley:
 "This is a much shorter set of patches that were on the go but didn't
  make it in to the early pull request for the merge window.  It's
  really a set of bug fixes plus some final cleanup work on the new tag
  queue API"

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  storvsc: ring buffer failures may result in I/O freeze
  ipr: set scsi_level correctly for disk arrays
  ipr: add support for async scanning to speed up boot
  scsi_debug: fix missing "break;" in SDEBUG_UA_CAPACITY_CHANGED case
  scsi_debug: take sdebug_host_list_lock when changing capacity
  scsi_debug: improve driver description in Kconfig
  scsi_debug: fix compare and write errors
  qla2xxx: fix race in handling rport deletion during recovery causes panic
  scsi: blacklist RSOC for Microsoft iSCSI target devices
  scsi: fix random memory corruption with scsi-mq + T10 PI
  Revert "[SCSI] mpt3sas: Remove phys on topology change"
  Revert "[SCSI] mpt2sas: Remove phys on topology change."
  esas2r: Correct typos of "validate" in a comment
  fc: FCP_PTA_SIMPLE is 0
  ibmvfc: remove unused tag variable
  scsi: remove MSG_*_TAG defines
  scsi: remove scsi_set_tag_type
  scsi: remove scsi_get_tag_type
  scsi: never drop to untagged mode during queue ramp down
  scsi: remove ->change_queue_type method

34 files changed, 104 insertions, 273 deletions

diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index aa915da2a5e5..82abfce1cb42 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -176,7 +176,6 @@ STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt);
 STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
 STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
 static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
-static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth);
 
 STATIC struct device_attribute *NCR_700_dev_attrs[];
 
@@ -326,7 +325,6 @@ NCR_700_detect(struct scsi_host_template *tpnt,
         tpnt->slave_destroy = NCR_700_slave_destroy;
         tpnt->slave_alloc = NCR_700_slave_alloc;
         tpnt->change_queue_depth = NCR_700_change_queue_depth;
-        tpnt->change_queue_type = NCR_700_change_queue_type;
         tpnt->use_blk_tags = 1;
 
         if(tpnt->name == NULL)
@@ -904,8 +902,8 @@ process_message(struct Scsi_Host *host,	struct NCR_700_Host_Parameters *hostdata
                         hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
 
                         SCp->device->tagged_supported = 0;
+                        SCp->device->simple_tags = 0;
                         scsi_change_queue_depth(SCp->device, host->cmd_per_lun);
-                        scsi_set_tag_type(SCp->device, 0);
                 } else {
                         shost_printk(KERN_WARNING, host,
                                 "(%d:%d) Unexpected REJECT Message %s\n",
@@ -1818,8 +1816,8 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
                 hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
         }
 
-        if((hostdata->tag_negotiated &(1<<scmd_id(SCp)))
-           && scsi_get_tag_type(SCp->device)) {
+        if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
+            SCp->device->simple_tags) {
                 slot->tag = SCp->request->tag;
                 CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
                        slot->tag, slot);
@@ -2082,39 +2080,6 @@ NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
         return scsi_change_queue_depth(SDp, depth);
 }
 
-static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type)
-{
-        int change_tag = ((tag_type ==0 &&  scsi_get_tag_type(SDp) != 0)
-                          || (tag_type != 0 && scsi_get_tag_type(SDp) == 0));
-        struct NCR_700_Host_Parameters *hostdata = 
-                (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
-
-        /* We have a global (per target) flag to track whether TCQ is
-         * enabled, so we'll be turning it off for the entire target here.
-         * our tag algorithm will fail if we mix tagged and untagged commands,
-         * so quiesce the device before doing this */
-        if (change_tag)
-                scsi_target_quiesce(SDp->sdev_target);
-
-        scsi_set_tag_type(SDp, tag_type);
-        if (!tag_type) {
-                /* shift back to the default unqueued number of commands
-                 * (the user can still raise this) */
-                scsi_change_queue_depth(SDp, SDp->host->cmd_per_lun);
-                hostdata->tag_negotiated &= ~(1 << sdev_id(SDp));
-        } else {
-                /* Here, we cleared the negotiation flag above, so this
-                 * will force the driver to renegotiate */
-                scsi_change_queue_depth(SDp, SDp->queue_depth);
-                if (change_tag)
-                        NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION);
-        }
-        if (change_tag)
-                scsi_target_resume(SDp->sdev_target);
-
-        return tag_type;
-}
-
 static ssize_t
 NCR_700_show_active_tags(struct device *dev, struct device_attribute *attr, char *buf)
 {
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 86cf3d671eb9..9c92f415229f 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1462,18 +1462,17 @@ config SCSI_WD719X
           SCSI controllers (based on WD33C296A chip).
 
 config SCSI_DEBUG
-        tristate "SCSI debugging host simulator"
+        tristate "SCSI debugging host and device simulator"
         depends on SCSI
         select CRC_T10DIF
         help
-          This is a host adapter simulator that can simulate multiple hosts
-          each with multiple dummy SCSI devices (disks). It defaults to one
-          host adapter with one dummy SCSI disk. Each dummy disk uses kernel
-          RAM as storage (i.e. it is a ramdisk). To save space when multiple
-          dummy disks are simulated, they share the same kernel RAM for 
-          their storage. See <http://sg.danny.cz/sg/sdebug26.html> for more
-          information. This driver is primarily of use to those testing the
-          SCSI and block subsystems. If unsure, say N.
+          This pseudo driver simulates one or more hosts (SCSI initiators),
+          each with one or more targets, each with one or more logical units.
+          Defaults to one of each, creating a small RAM disk device. Many
+          parameters found in the /sys/bus/pseudo/drivers/scsi_debug
+          directory can be tweaked at run time.
+          See <http://sg.danny.cz/sg/sdebug26.html> for more information.
+          Mainly used for testing and best as a module. If unsure, say N.
 
 config SCSI_MESH
         tristate "MESH (Power Mac internal SCSI) support"
diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index 6719a3390ebd..2c5ce48c8f95 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -7921,9 +7921,9 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
          */
         if ((asc_dvc->cur_dvc_qng[scp->device->id] > 0) &&
             (boardp->reqcnt[scp->device->id] % 255) == 0) {
-                asc_scsi_q->q2.tag_code = MSG_ORDERED_TAG;
+                asc_scsi_q->q2.tag_code = ORDERED_QUEUE_TAG;
         } else {
-                asc_scsi_q->q2.tag_code = MSG_SIMPLE_TAG;
+                asc_scsi_q->q2.tag_code = SIMPLE_QUEUE_TAG;
         }
 
         /* Build ASC_SCSI_Q */
@@ -8351,7 +8351,7 @@ static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no)
         }
         q_addr = ASC_QNO_TO_QADDR(q_no);
         if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) {
-                scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG;
+                scsiq->q2.tag_code &= ~SIMPLE_QUEUE_TAG;
         }
         scsiq->q1.status = QS_FREE;
         AscMemWordCopyPtrToLram(iop_base,
@@ -8669,7 +8669,7 @@ static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq)
                 }
         }
         if (disable_syn_offset_one_fix) {
-                scsiq->q2.tag_code &= ~MSG_SIMPLE_TAG;
+                scsiq->q2.tag_code &= ~SIMPLE_QUEUE_TAG;
                 scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX |
                                        ASC_TAG_FLAG_DISABLE_DISCONNECT);
         } else {
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 14fc018436c2..02a2512b76a8 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -63,7 +63,6 @@ static struct scsi_host_template aic94xx_sht = {
         .scan_finished          = asd_scan_finished,
         .scan_start             = asd_scan_start,
         .change_queue_depth     = sas_change_queue_depth,
-        .change_queue_type      = sas_change_queue_type,
         .bios_param             = sas_bios_param,
         .can_queue              = 1,
         .cmd_per_lun            = 1,
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index e861f286b42e..98d06d151958 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2792,7 +2792,6 @@ static struct scsi_host_template bnx2fc_shost_template = {
         .eh_host_reset_handler  = fc_eh_host_reset,
         .slave_alloc            = fc_slave_alloc,
         .change_queue_depth     = scsi_change_queue_depth,
-        .change_queue_type      = scsi_change_queue_type,
         .this_id                = -1,
         .cmd_per_lun            = 3,
         .use_clustering         = ENABLE_CLUSTERING,
diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 4b56858c1df2..9ecca8504f60 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1737,11 +1737,7 @@ void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
         fcp_cmnd->fc_pri_ta = 0;
         fcp_cmnd->fc_tm_flags = io_req->mp_req.tm_flags;
         fcp_cmnd->fc_flags = io_req->io_req_flags;
-
-        if (sc_cmd->flags & SCMD_TAGGED)
-                fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
-        else
-                fcp_cmnd->fc_pri_ta = 0;
+        fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
 }
 
 static void bnx2fc_parse_fcp_rsp(struct bnx2fc_cmd *io_req,
diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c
index 51ea5dc5f084..3987284e0d2a 100644
--- a/drivers/scsi/csiostor/csio_scsi.c
+++ b/drivers/scsi/csiostor/csio_scsi.c
@@ -172,10 +172,7 @@ csio_scsi_fcp_cmnd(struct csio_ioreq *req, void *addr)
                 fcp_cmnd->fc_cmdref = 0;
 
                 memcpy(fcp_cmnd->fc_cdb, scmnd->cmnd, 16);
-                if (scmnd->flags & SCMD_TAGGED)
-                        fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
-                else
-                        fcp_cmnd->fc_pri_ta = 0;
+                fcp_cmnd->fc_pri_ta = FCP_PTA_SIMPLE;
                 fcp_cmnd->fc_dl = cpu_to_be32(scsi_bufflen(scmnd));
 
                 if (req->nsge)
diff --git a/drivers/scsi/esas2r/esas2r_flash.c b/drivers/scsi/esas2r/esas2r_flash.c
index b7dc59fca7a6..7bd376d95ed5 100644
--- a/drivers/scsi/esas2r/esas2r_flash.c
+++ b/drivers/scsi/esas2r/esas2r_flash.c
@@ -684,9 +684,9 @@ static u16 calc_fi_checksum(struct esas2r_flash_context *fc)
  *              1)  verify the fi_version is correct
  *              2)  verify the checksum of the entire image.
  *              3)  validate the adap_typ, action and length fields.
- *              4)  valdiate each component header. check the img_type and
+ *              4)  validate each component header. check the img_type and
  *                  length fields
- *              5)  valdiate each component image.  validate signatures and
+ *              5)  validate each component image.  validate signatures and
  *                  local checksums
  */
 static bool verify_fi(struct esas2r_adapter *a,
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 593ff8a63c70..7e1c21e6736b 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -255,7 +255,6 @@ static struct scsi_host_template driver_template = {
         .emulated                       = 0,
         .proc_name                      = ESAS2R_DRVR_NAME,
         .change_queue_depth             = scsi_change_queue_depth,
-        .change_queue_type              = scsi_change_queue_type,
         .max_sectors                    = 0xFFFF,
         .use_blk_tags                   = 1,
 };
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index cd00a6cdf55b..ec193a8357d7 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -281,7 +281,6 @@ static struct scsi_host_template fcoe_shost_template = {
         .eh_host_reset_handler = fc_eh_host_reset,
         .slave_alloc = fc_slave_alloc,
         .change_queue_depth = scsi_change_queue_depth,
-        .change_queue_type = scsi_change_queue_type,
         .this_id = -1,
         .cmd_per_lun = 3,
         .can_queue = FCOE_MAX_OUTSTANDING_COMMANDS,
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index 0c1f8177b5b7..8a0d4d7b3254 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -111,7 +111,6 @@ static struct scsi_host_template fnic_host_template = {
         .eh_host_reset_handler = fnic_host_reset,
         .slave_alloc = fnic_slave_alloc,
         .change_queue_depth = scsi_change_queue_depth,
-        .change_queue_type = scsi_change_queue_type,
         .this_id = -1,
         .cmd_per_lun = 3,
         .can_queue = FNIC_DFLT_IO_REQ,
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index f58c6d8e0264..057d27721d5b 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1615,7 +1615,6 @@ static int ibmvfc_queuecommand_lck(struct scsi_cmnd *cmnd,
         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
         struct ibmvfc_cmd *vfc_cmd;
         struct ibmvfc_event *evt;
-        u8 tag[2];
         int rc;
 
         if (unlikely((rc = fc_remote_port_chkready(rport))) ||
@@ -3089,7 +3088,6 @@ static struct scsi_host_template driver_template = {
         .target_alloc = ibmvfc_target_alloc,
         .scan_finished = ibmvfc_scan_finished,
         .change_queue_depth = ibmvfc_change_queue_depth,
-        .change_queue_type = scsi_change_queue_type,
         .cmd_per_lun = 16,
         .can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
         .this_id = -1,
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 540294389355..df4e27cd996a 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -1426,16 +1426,14 @@ static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
                 if (res->sdev) {
                         res->del_from_ml = 1;
                         res->res_handle = IPR_INVALID_RES_HANDLE;
-                        if (ioa_cfg->allow_ml_add_del)
-                                schedule_work(&ioa_cfg->work_q);
+                        schedule_work(&ioa_cfg->work_q);
                 } else {
                         ipr_clear_res_target(res);
                         list_move_tail(&res->queue, &ioa_cfg->free_res_q);
                 }
         } else if (!res->sdev || res->del_from_ml) {
                 res->add_to_ml = 1;
-                if (ioa_cfg->allow_ml_add_del)
-                        schedule_work(&ioa_cfg->work_q);
+                schedule_work(&ioa_cfg->work_q);
         }
 
         ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
@@ -3273,8 +3271,7 @@ static void ipr_worker_thread(struct work_struct *work)
 restart:
         do {
                 did_work = 0;
-                if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds ||
-                    !ioa_cfg->allow_ml_add_del) {
+                if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) {
                         spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
                         return;
                 }
@@ -3311,6 +3308,7 @@ restart:
                 }
         }
 
+        ioa_cfg->scan_done = 1;
         spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
         kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
         LEAVE;
@@ -4346,30 +4344,6 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
 }
 
 /**
- * ipr_change_queue_type - Change the device's queue type
- * @dsev:               scsi device struct
- * @tag_type:   type of tags to use
- *
- * Return value:
- *      actual queue type set
- **/
-static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
-        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
-        struct ipr_resource_entry *res;
-        unsigned long lock_flags = 0;
-
-        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
-        res = (struct ipr_resource_entry *)sdev->hostdata;
-        if (res && ipr_is_gscsi(res))
-                tag_type = scsi_change_queue_type(sdev, tag_type);
-        else
-                tag_type = 0;
-        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
-        return tag_type;
-}
-
-/**
  * ipr_show_adapter_handle - Show the adapter's resource handle for this device
  * @dev:        device struct
  * @attr:       device attribute structure
@@ -4739,6 +4713,7 @@ static int ipr_slave_configure(struct scsi_device *sdev)
                         sdev->no_uld_attach = 1;
                 }
                 if (ipr_is_vset_device(res)) {
+                        sdev->scsi_level = SCSI_SPC_3;
                         blk_queue_rq_timeout(sdev->request_queue,
                                              IPR_VSET_RW_TIMEOUT);
                         blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
@@ -5231,6 +5206,28 @@ static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd)
  * @scsi_cmd:   scsi command struct
  *
  * Return value:
+ *      0 if scan in progress / 1 if scan is complete
+ **/
+static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time)
+{
+        unsigned long lock_flags;
+        struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
+        int rc = 0;
+
+        spin_lock_irqsave(shost->host_lock, lock_flags);
+        if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done)
+                rc = 1;
+        if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2))
+                rc = 1;
+        spin_unlock_irqrestore(shost->host_lock, lock_flags);
+        return rc;
+}
+
+/**
+ * ipr_eh_host_reset - Reset the host adapter
+ * @scsi_cmd:   scsi command struct
+ *
+ * Return value:
  *      SUCCESS / FAILED
  **/
 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd)
@@ -5779,7 +5776,7 @@ static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
 
         ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
 
-        if (!scsi_get_tag_type(scsi_cmd->device)) {
+        if (!scsi_cmd->device->simple_tags) {
                 ipr_erp_request_sense(ipr_cmd);
                 return;
         }
@@ -6299,10 +6296,10 @@ static struct scsi_host_template driver_template = {
         .slave_alloc = ipr_slave_alloc,
         .slave_configure = ipr_slave_configure,
         .slave_destroy = ipr_slave_destroy,
+        .scan_finished = ipr_scan_finished,
         .target_alloc = ipr_target_alloc,
         .target_destroy = ipr_target_destroy,
         .change_queue_depth = ipr_change_queue_depth,
-        .change_queue_type = ipr_change_queue_type,
         .bios_param = ipr_biosparam,
         .can_queue = IPR_MAX_COMMANDS,
         .this_id = -1,
@@ -6841,7 +6838,7 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
         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)) {
+                if (res->add_to_ml || res->del_from_ml) {
                         ipr_trace;
                         break;
                 }
@@ -6870,6 +6867,7 @@ static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
         if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds)
                 scsi_block_requests(ioa_cfg->host);
 
+        schedule_work(&ioa_cfg->work_q);
         LEAVE;
         return IPR_RC_JOB_RETURN;
 }
@@ -7610,6 +7608,19 @@ static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
         type[4] = '\0';
         ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
 
+        if (ipr_invalid_adapter(ioa_cfg)) {
+                dev_err(&ioa_cfg->pdev->dev,
+                        "Adapter not supported in this hardware configuration.\n");
+
+                if (!ipr_testmode) {
+                        ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
+                        ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
+                        list_add_tail(&ipr_cmd->queue,
+                                        &ioa_cfg->hrrq->hrrq_free_q);
+                        return IPR_RC_JOB_RETURN;
+                }
+        }
+
         ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
 
         ipr_ioafp_inquiry(ipr_cmd, 1, 0,
@@ -8797,20 +8808,6 @@ static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
                 _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);
-        spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
-
-        if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) {
-                rc = -EIO;
-        } else if (ipr_invalid_adapter(ioa_cfg)) {
-                if (!ipr_testmode)
-                        rc = -EIO;
-
-                dev_err(&ioa_cfg->pdev->dev,
-                        "Adapter not supported in this hardware configuration.\n");
-        }
-
-        spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
 
         LEAVE;
         return rc;
@@ -9264,7 +9261,7 @@ static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
                                                * ioa_cfg->max_devs_supported)));
         }
 
-        host->max_channel = IPR_MAX_BUS_TO_SCAN;
+        host->max_channel = IPR_VSET_BUS;
         host->unique_id = host->host_no;
         host->max_cmd_len = IPR_MAX_CDB_LEN;
         host->can_queue = ioa_cfg->max_cmds;
@@ -9764,25 +9761,6 @@ out_scsi_host_put:
 }
 
 /**
- * ipr_scan_vsets - Scans for VSET devices
- * @ioa_cfg:    ioa config struct
- *
- * Description: Since the VSET resources do not follow SAM in that we can have
- * sparse LUNs with no LUN 0, we have to scan for these ourselves.
- *
- * Return value:
- *      none
- **/
-static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
-{
-        int target, lun;
-
-        for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
-                for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++)
-                        scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
-}
-
-/**
  * ipr_initiate_ioa_bringdown - Bring down an adapter
  * @ioa_cfg:            ioa config struct
  * @shutdown_type:      shutdown type
@@ -9937,10 +9915,6 @@ static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id)
         }
 
         scsi_scan_host(ioa_cfg->host);
-        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;
         ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight;
 
         if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) {
diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index 9ebdebd944e7..b4f3eec51bc9 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -157,13 +157,11 @@
 
 #define IPR_MAX_NUM_TARGETS_PER_BUS                     256
 #define IPR_MAX_NUM_LUNS_PER_TARGET                     256
-#define IPR_MAX_NUM_VSET_LUNS_PER_TARGET        8
 #define IPR_VSET_BUS                                    0xff
 #define IPR_IOA_BUS                                             0xff
 #define IPR_IOA_TARGET                                  0xff
 #define IPR_IOA_LUN                                             0xff
 #define IPR_MAX_NUM_BUSES                               16
-#define IPR_MAX_BUS_TO_SCAN                             IPR_MAX_NUM_BUSES
 
 #define IPR_NUM_RESET_RELOAD_RETRIES            3
 
@@ -1453,7 +1451,7 @@ struct ipr_ioa_cfg {
         u8 in_ioa_bringdown:1;
         u8 ioa_unit_checked:1;
         u8 dump_taken:1;
-        u8 allow_ml_add_del:1;
+        u8 scan_done:1;
         u8 needs_hard_reset:1;
         u8 dual_raid:1;
         u8 needs_warm_reset:1;
diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c
index 724c6265b667..cd41b63a2f10 100644
--- a/drivers/scsi/isci/init.c
+++ b/drivers/scsi/isci/init.c
@@ -158,7 +158,6 @@ static struct scsi_host_template isci_sht = {
         .scan_finished                  = isci_host_scan_finished,
         .scan_start                     = isci_host_start,
         .change_queue_depth             = sas_change_queue_depth,
-        .change_queue_type              = sas_change_queue_type,
         .bios_param                     = sas_bios_param,
         .can_queue                      = ISCI_CAN_QUEUE_VAL,
         .cmd_per_lun                    = 1,
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index 72918d227ead..519dac4e341e 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -906,13 +906,6 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth)
         return scsi_change_queue_depth(sdev, depth);
 }
 
-int sas_change_queue_type(struct scsi_device *scsi_dev, int type)
-{
-        if (dev_is_sata(sdev_to_domain_dev(scsi_dev)))
-                return -EINVAL;
-        return scsi_change_queue_type(scsi_dev, type);
-}
-
 int sas_bios_param(struct scsi_device *scsi_dev,
                           struct block_device *bdev,
                           sector_t capacity, int *hsc)
@@ -1011,7 +1004,6 @@ EXPORT_SYMBOL_GPL(sas_queuecommand);
 EXPORT_SYMBOL_GPL(sas_target_alloc);
 EXPORT_SYMBOL_GPL(sas_slave_configure);
 EXPORT_SYMBOL_GPL(sas_change_queue_depth);
-EXPORT_SYMBOL_GPL(sas_change_queue_type);
 EXPORT_SYMBOL_GPL(sas_bios_param);
 EXPORT_SYMBOL_GPL(sas_task_abort);
 EXPORT_SYMBOL_GPL(sas_phy_reset);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index fd85952b621d..4f9222eb2266 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -5879,7 +5879,6 @@ struct scsi_host_template lpfc_template = {
         .max_sectors            = 0xFFFF,
         .vendor_id              = LPFC_NL_VENDOR_ID,
         .change_queue_depth     = scsi_change_queue_depth,
-        .change_queue_type      = scsi_change_queue_type,
         .use_blk_tags           = 1,
         .track_queue_depth      = 1,
 };
@@ -5904,7 +5903,6 @@ struct scsi_host_template lpfc_vport_template = {
         .shost_attrs            = lpfc_vport_attrs,
         .max_sectors            = 0xFFFF,
         .change_queue_depth     = scsi_change_queue_depth,
-        .change_queue_type      = scsi_change_queue_type,
         .use_blk_tags           = 1,
         .track_queue_depth      = 1,
 };
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 8431eb10bbb1..6a1c036a6f3f 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -7592,7 +7592,6 @@ static struct scsi_host_template scsih_driver_template = {
         .scan_finished                  = _scsih_scan_finished,
         .scan_start                     = _scsih_scan_start,
         .change_queue_depth             = _scsih_change_queue_depth,
-        .change_queue_type              = scsi_change_queue_type,
         .eh_abort_handler               = _scsih_abort,
         .eh_device_reset_handler        = _scsih_dev_reset,
         .eh_target_reset_handler        = _scsih_target_reset,
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index 0d1d06488a28..e689bf20a3ea 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -1006,12 +1006,9 @@ mpt2sas_transport_update_links(struct MPT2SAS_ADAPTER *ioc,
                     &mpt2sas_phy->remote_identify);
                 _transport_add_phy_to_an_existing_port(ioc, sas_node,
                     mpt2sas_phy, mpt2sas_phy->remote_identify.sas_address);
-        } else {
+        } else
                 memset(&mpt2sas_phy->remote_identify, 0 , sizeof(struct
                     sas_identify));
-                _transport_del_phy_from_an_existing_port(ioc, sas_node,
-                    mpt2sas_phy);
-        }
 
         if (mpt2sas_phy->phy)
                 mpt2sas_phy->phy->negotiated_linkrate =
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index a2b60991efd4..94261ee9e72d 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -7229,7 +7229,6 @@ static struct scsi_host_template scsih_driver_template = {
         .scan_finished                  = _scsih_scan_finished,
         .scan_start                     = _scsih_scan_start,
         .change_queue_depth             = _scsih_change_queue_depth,
-        .change_queue_type              = scsi_change_queue_type,
         .eh_abort_handler               = _scsih_abort,
         .eh_device_reset_handler        = _scsih_dev_reset,
         .eh_target_reset_handler        = _scsih_target_reset,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_transport.c b/drivers/scsi/mpt3sas/mpt3sas_transport.c
index d4bafaaebea9..3637ae6c0171 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_transport.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_transport.c
@@ -1003,12 +1003,9 @@ mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc,
                     &mpt3sas_phy->remote_identify);
                 _transport_add_phy_to_an_existing_port(ioc, sas_node,
                     mpt3sas_phy, mpt3sas_phy->remote_identify.sas_address);
-        } else {
+        } else
                 memset(&mpt3sas_phy->remote_identify, 0 , sizeof(struct
                     sas_identify));
-                _transport_del_phy_from_an_existing_port(ioc, sas_node,
-                    mpt3sas_phy);
-        }
 
         if (mpt3sas_phy->phy)
                 mpt3sas_phy->phy->negotiated_linkrate =
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index f15df3de6790..53030b0e8015 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -54,7 +54,6 @@ static struct scsi_host_template mvs_sht = {
         .scan_finished          = mvs_scan_finished,
         .scan_start             = mvs_scan_start,
         .change_queue_depth     = sas_change_queue_depth,
-        .change_queue_type      = sas_change_queue_type,
         .bios_param             = sas_bios_param,
         .can_queue              = 1,
         .cmd_per_lun            = 1,
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 329aba0083ab..65555916d3b8 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -76,7 +76,6 @@ static struct scsi_host_template pm8001_sht = {
         .scan_finished          = pm8001_scan_finished,
         .scan_start             = pm8001_scan_start,
         .change_queue_depth     = sas_change_queue_depth,
-        .change_queue_type      = sas_change_queue_type,
         .bios_param             = sas_bios_param,
         .can_queue              = 1,
         .cmd_per_lun            = 1,
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index b1b1f66b1ab7..8c27b6a77ec4 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4251,7 +4251,6 @@ static struct scsi_host_template pmcraid_host_template = {
         .slave_configure = pmcraid_slave_configure,
         .slave_destroy = pmcraid_slave_destroy,
         .change_queue_depth = pmcraid_change_queue_depth,
-        .change_queue_type  = scsi_change_queue_type,
         .can_queue = PMCRAID_MAX_IO_CMD,
         .this_id = -1,
         .sg_tablesize = PMCRAID_MAX_IOADLS,
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index a4dde7e80dbd..e59f25bff7ab 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -3237,8 +3237,6 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
         struct fc_rport *rport;
         unsigned long flags;
 
-        qla2x00_rport_del(fcport);
-
         rport_ids.node_name = wwn_to_u64(fcport->node_name);
         rport_ids.port_name = wwn_to_u64(fcport->port_name);
         rport_ids.port_id = fcport->d_id.b.domain << 16 |
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 6b4d9235368a..12ca291c1380 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -258,7 +258,6 @@ struct scsi_host_template qla2xxx_driver_template = {
         .scan_finished          = qla2xxx_scan_finished,
         .scan_start             = qla2xxx_scan_start,
         .change_queue_depth     = scsi_change_queue_depth,
-        .change_queue_type      = scsi_change_queue_type,
         .this_id                = -1,
         .cmd_per_lun            = 3,
         .use_clustering         = ENABLE_CLUSTERING,
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index a902fa1db7af..57418258c101 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -3218,25 +3218,25 @@ static inline int qlt_get_fcp_task_attr(struct scsi_qla_host *vha,
 
         switch (task_codes) {
         case ATIO_SIMPLE_QUEUE:
-                fcp_task_attr = MSG_SIMPLE_TAG;
+                fcp_task_attr = TCM_SIMPLE_TAG;
                 break;
         case ATIO_HEAD_OF_QUEUE:
-                fcp_task_attr = MSG_HEAD_TAG;
+                fcp_task_attr = TCM_HEAD_TAG;
                 break;
         case ATIO_ORDERED_QUEUE:
-                fcp_task_attr = MSG_ORDERED_TAG;
+                fcp_task_attr = TCM_ORDERED_TAG;
                 break;
         case ATIO_ACA_QUEUE:
-                fcp_task_attr = MSG_ACA_TAG;
+                fcp_task_attr = TCM_ACA_TAG;
                 break;
         case ATIO_UNTAGGED:
-                fcp_task_attr = MSG_SIMPLE_TAG;
+                fcp_task_attr = TCM_SIMPLE_TAG;
                 break;
         default:
                 ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05d,
                     "qla_target: unknown task code %x, use ORDERED instead\n",
                     task_codes);
-                fcp_task_attr = MSG_ORDERED_TAG;
+                fcp_task_attr = TCM_ORDERED_TAG;
                 break;
         }
 
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index 1ad0c36375b8..e02885451425 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -739,34 +739,12 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
 
         if (sdev->last_queue_full_count <= 10)
                 return 0;
-        if (sdev->last_queue_full_depth < 8) {
-                /* Drop back to untagged */
-                scsi_set_tag_type(sdev, 0);
-                scsi_change_queue_depth(sdev, sdev->host->cmd_per_lun);
-                return -1;
-        }
 
         return scsi_change_queue_depth(sdev, depth);
 }
 EXPORT_SYMBOL(scsi_track_queue_full);
 
 /**
- * scsi_change_queue_type() - Change a device's queue type
- * @sdev:     The SCSI device whose queue depth is to change
- * @tag_type: Identifier for queue type
- */
-int scsi_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
-        if (!sdev->tagged_supported)
-                return 0;
-
-        scsi_set_tag_type(sdev, tag_type);
-        return tag_type;
-
-}
-EXPORT_SYMBOL(scsi_change_queue_type);
-
-/**
  * scsi_vpd_inquiry - Request a device provide us with a VPD page
  * @sdev: The device to ask
  * @buffer: Where to put the result
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index aa4b6b80aade..7b8b51bc29b4 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -128,7 +128,6 @@ static const char *scsi_debug_version_date = "20141022";
 #define DEF_REMOVABLE false
 #define DEF_SCSI_LEVEL   6    /* INQUIRY, byte2 [6->SPC-4] */
 #define DEF_SECTOR_SIZE 512
-#define DEF_TAGGED_QUEUING 0 /* 0 | MSG_SIMPLE_TAG | MSG_ORDERED_TAG */
 #define DEF_UNMAP_ALIGNMENT 0
 #define DEF_UNMAP_GRANULARITY 1
 #define DEF_UNMAP_MAX_BLOCKS 0xFFFFFFFF
@@ -817,6 +816,7 @@ static int check_readiness(struct scsi_cmnd *SCpnt, int uas_only,
                                         UA_CHANGED_ASC, CAPACITY_CHANGED_ASCQ);
                         if (debug)
                                 cp = "capacity data changed";
+                        break;
                 default:
                         pr_warn("%s: unexpected unit attention code=%d\n",
                                 __func__, k);
@@ -3045,18 +3045,12 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
         u8 num;
         unsigned long iflags;
         int ret;
+        int retval = 0;
 
-        lba = get_unaligned_be32(cmd + 2);
+        lba = get_unaligned_be64(cmd + 2);
         num = cmd[13];          /* 1 to a maximum of 255 logical blocks */
         if (0 == num)
                 return 0;       /* degenerate case, not an error */
-        dnum = 2 * num;
-        arr = kzalloc(dnum * lb_size, GFP_ATOMIC);
-        if (NULL == arr) {
-                mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
-                                INSUFF_RES_ASCQ);
-                return check_condition_result;
-        }
         if (scsi_debug_dif == SD_DIF_TYPE2_PROTECTION &&
             (cmd[1] & 0xe0)) {
                 mk_sense_invalid_opcode(scp);
@@ -3079,6 +3073,13 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
                 mk_sense_buffer(scp, ILLEGAL_REQUEST, INVALID_FIELD_IN_CDB, 0);
                 return check_condition_result;
         }
+        dnum = 2 * num;
+        arr = kzalloc(dnum * lb_size, GFP_ATOMIC);
+        if (NULL == arr) {
+                mk_sense_buffer(scp, ILLEGAL_REQUEST, INSUFF_RES_ASC,
+                                INSUFF_RES_ASCQ);
+                return check_condition_result;
+        }
 
         write_lock_irqsave(&atomic_rw, iflags);
 
@@ -3089,24 +3090,24 @@ resp_comp_write(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
         ret = do_device_access(scp, 0, dnum, true);
         fake_storep = fake_storep_hold;
         if (ret == -1) {
-                write_unlock_irqrestore(&atomic_rw, iflags);
-                kfree(arr);
-                return DID_ERROR << 16;
+                retval = DID_ERROR << 16;
+                goto cleanup;
         } else if ((ret < (dnum * lb_size)) &&
                  (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts))
                 sdev_printk(KERN_INFO, scp->device, "%s: compare_write: cdb "
                             "indicated=%u, IO sent=%d bytes\n", my_name,
                             dnum * lb_size, ret);
         if (!comp_write_worker(lba, num, arr)) {
-                write_unlock_irqrestore(&atomic_rw, iflags);
-                kfree(arr);
                 mk_sense_buffer(scp, MISCOMPARE, MISCOMPARE_VERIFY_ASC, 0);
-                return check_condition_result;
+                retval = check_condition_result;
+                goto cleanup;
         }
         if (scsi_debug_lbp())
                 map_region(lba, num);
+cleanup:
         write_unlock_irqrestore(&atomic_rw, iflags);
-        return 0;
+        kfree(arr);
+        return retval;
 }
 
 struct unmap_block_desc {
@@ -4438,6 +4439,7 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
                         struct sdebug_host_info *sdhp;
                         struct sdebug_dev_info *dp;
 
+                        spin_lock(&sdebug_host_list_lock);
                         list_for_each_entry(sdhp, &sdebug_host_list,
                                             host_list) {
                                 list_for_each_entry(dp, &sdhp->dev_info_list,
@@ -4446,6 +4448,7 @@ static ssize_t virtual_gb_store(struct device_driver *ddp, const char *buf,
                                                 dp->uas_bm);
                                 }
                         }
+                        spin_unlock(&sdebug_host_list_lock);
                 }
                 return count;
         }
@@ -4988,32 +4991,6 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
 }
 
 static int
-sdebug_change_qtype(struct scsi_device *sdev, int qtype)
-{
-        qtype = scsi_change_queue_type(sdev, qtype);
-        if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) {
-                const char *cp;
-
-                switch (qtype) {
-                case 0:
-                        cp = "untagged";
-                        break;
-                case MSG_SIMPLE_TAG:
-                        cp = "simple tags";
-                        break;
-                case MSG_ORDERED_TAG:
-                        cp = "ordered tags";
-                        break;
-                default:
-                        cp = "unknown";
-                        break;
-                }
-                sdev_printk(KERN_INFO, sdev, "%s: to %s\n", __func__, cp);
-        }
-        return qtype;
-}
-
-static int
 check_inject(struct scsi_cmnd *scp)
 {
         struct sdebug_scmd_extra_t *ep = scsi_cmd_priv(scp);
@@ -5212,7 +5189,6 @@ static struct scsi_host_template sdebug_driver_template = {
         .ioctl =                scsi_debug_ioctl,
         .queuecommand =         sdebug_queuecommand_lock_or_not,
         .change_queue_depth =   sdebug_change_qdepth,
-        .change_queue_type =    sdebug_change_qtype,
         .eh_abort_handler =     scsi_debug_abort,
         .eh_device_reset_handler = scsi_debug_device_reset,
         .eh_target_reset_handler = scsi_debug_target_reset,
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index c1d04d4d3c6c..262ab837a704 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -211,6 +211,7 @@ static struct {
         {"Medion", "Flash XL  MMC/SD", "2.6D", BLIST_FORCELUN},
         {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
         {"MICROP", "4110", NULL, BLIST_NOTQ},
+        {"MSFT", "Virtual HD", NULL, BLIST_NO_RSOC},
         {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
         {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
         {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 43318d556cbc..9ea95dd3e260 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1918,7 +1918,9 @@ static int scsi_mq_prep_fn(struct request *req)
 
         if (scsi_host_get_prot(shost)) {
                 cmd->prot_sdb = (void *)sg +
-                        shost->sg_tablesize * sizeof(struct scatterlist);
+                        min_t(unsigned int,
+                              shost->sg_tablesize, SCSI_MAX_SG_SEGMENTS) *
+                        sizeof(struct scatterlist);
                 memset(cmd->prot_sdb, 0, sizeof(struct scsi_data_buffer));
 
                 cmd->prot_sdb->table.sgl =
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 1cb64a8e18c9..1ac38e73df7e 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -738,30 +738,12 @@ store_queue_type_field(struct device *dev, struct device_attribute *attr,
                        const char *buf, size_t count)
 {
         struct scsi_device *sdev = to_scsi_device(dev);
-        struct scsi_host_template *sht = sdev->host->hostt;
-        int tag_type = 0, retval;
-        int prev_tag_type = scsi_get_tag_type(sdev);
-
-        if (!sdev->tagged_supported || !sht->change_queue_type)
-                return -EINVAL;
 
-        /*
-         * We're never issueing order tags these days, but allow the value
-         * for backwards compatibility.
-         */
-        if (strncmp(buf, "ordered", 7) == 0 ||
-            strncmp(buf, "simple", 6) == 0)
-                tag_type = MSG_SIMPLE_TAG;
-        else if (strncmp(buf, "none", 4) != 0)
+        if (!sdev->tagged_supported)
                 return -EINVAL;
-
-        if (tag_type == prev_tag_type)
-                return count;
-
-        retval = sht->change_queue_type(sdev, tag_type);
-        if (retval < 0)
-                return retval;
-
+                
+        sdev_printk(KERN_INFO, sdev,
+                    "ignoring write to deprecated queue_type attribute");
         return count;
 }
 
@@ -938,10 +920,6 @@ static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
             !sdev->host->hostt->change_queue_depth)
                 return 0;
 
-        if (attr == &dev_attr_queue_type.attr &&
-            !sdev->host->hostt->change_queue_type)
-                return S_IRUGO;
-
         return attr->mode;
 }
 
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index fa2aece76cc2..31bbb0da3397 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -1221,7 +1221,7 @@ EXPORT_SYMBOL_GPL(spi_populate_ppr_msg);
 int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd)
 {
         if (cmd->flags & SCMD_TAGGED) {
-                *msg++ = MSG_SIMPLE_TAG;
+                *msg++ = SIMPLE_QUEUE_TAG;
                 *msg++ = cmd->request->tag;
                 return 2;
         }
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index e3ba251fb6e7..4cff0ddc2c25 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1688,13 +1688,12 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
         if (ret == -EAGAIN) {
                 /* no more space */
 
-                if (cmd_request->bounce_sgl_count) {
+                if (cmd_request->bounce_sgl_count)
                         destroy_bounce_buffer(cmd_request->bounce_sgl,
                                         cmd_request->bounce_sgl_count);
 
-                        ret = SCSI_MLQUEUE_DEVICE_BUSY;
-                        goto queue_error;
-                }
+                ret = SCSI_MLQUEUE_DEVICE_BUSY;
+                goto queue_error;
         }
 
         return 0;