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

Pull first round of SCSI updates from James Bottomley:
 "This is a large set of updates, mostly for drivers (qla2xxx [including
  support for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa,
  be2iscsi, isci, lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).

  There's also a rework for tape adding virtually unlimited numbers of
  tape drives plus a set of dif fixes for sd and a fix for a live lock
  on hot remove of SCSI devices.

  This round includes a signed tag pull of isci-for-3.6

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

Fix up trivial conflict in drivers/scsi/qla2xxx/qla_nx.c due to new PCI
helper function use in a function that was removed by this pull.

* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (198 commits)
  [SCSI] st: remove st_mutex
  [SCSI] sd: Ensure we correctly disable devices with unknown protection type
  [SCSI] hpsa: gen8plus Smart Array IDs
  [SCSI] qla4xxx: Update driver version to 5.03.00-k1
  [SCSI] qla4xxx: Disable generating pause frames for ISP83XX
  [SCSI] qla4xxx: Fix double clearing of risc_intr for ISP83XX
  [SCSI] qla4xxx: IDC implementation for Loopback
  [SCSI] qla4xxx: update copyrights in LICENSE.qla4xxx
  [SCSI] qla4xxx: Fix panic while rmmod
  [SCSI] qla4xxx: Fail probe_adapter if IRQ allocation fails
  [SCSI] qla4xxx: Prevent MSI/MSI-X falling back to INTx for ISP82XX
  [SCSI] qla4xxx: Update idc reg in case of PCI AER
  [SCSI] qla4xxx: Fix double IDC locking in qla4_8xxx_error_recovery
  [SCSI] qla4xxx: Clear interrupt while unloading driver for ISP83XX
  [SCSI] qla4xxx: Print correct IDC version
  [SCSI] qla4xxx: Added new mbox cmd to pass driver version to FW
  [SCSI] scsi_dh_alua: Enable STPG for unavailable ports
  [SCSI] scsi_remove_target: fix softlockup regression on hot remove
  [SCSI] ibmvscsi: Fix host config length field overflow
  [SCSI] ibmvscsi: Remove backend abstraction
  ...

1 files changed, 16 insertions, 8 deletions

diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index b334fdc1726a..609dafd661d1 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -1044,7 +1044,7 @@ static enum sci_status sci_controller_start(struct isci_host *ihost,
         return SCI_SUCCESS;
 }
 
-void isci_host_scan_start(struct Scsi_Host *shost)
+void isci_host_start(struct Scsi_Host *shost)
 {
         struct isci_host *ihost = SHOST_TO_SAS_HA(shost)->lldd_ha;
         unsigned long tmo = sci_controller_get_suggested_start_timeout(ihost);
@@ -1079,7 +1079,6 @@ static void sci_controller_completion_handler(struct isci_host *ihost)
 
 void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_task *task)
 {
-        task->lldd_task = NULL;
         if (!test_bit(IREQ_ABORT_PATH_ACTIVE, &ireq->flags) &&
             !(task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
                 if (test_bit(IREQ_COMPLETE_IN_TARGET, &ireq->flags)) {
@@ -1087,16 +1086,19 @@ void ireq_done(struct isci_host *ihost, struct isci_request *ireq, struct sas_ta
                         dev_dbg(&ihost->pdev->dev,
                                 "%s: Normal - ireq/task = %p/%p\n",
                                 __func__, ireq, task);
-
+                        task->lldd_task = NULL;
                         task->task_done(task);
                 } else {
                         dev_dbg(&ihost->pdev->dev,
                                 "%s: Error - ireq/task = %p/%p\n",
                                 __func__, ireq, task);
-
+                        if (sas_protocol_ata(task->task_proto))
+                                task->lldd_task = NULL;
                         sas_task_abort(task);
                 }
-        }
+        } else
+                task->lldd_task = NULL;
+
         if (test_and_clear_bit(IREQ_ABORT_PATH_ACTIVE, &ireq->flags))
                 wake_up_all(&ihost->eventq);
 
@@ -1120,10 +1122,16 @@ void isci_host_completion_routine(unsigned long data)
         sci_controller_completion_handler(ihost);
         spin_unlock_irq(&ihost->scic_lock);
 
-        /* the coalesence timeout doubles at each encoding step, so
+        /*
+         * we subtract SCI_MAX_PORTS to account for the number of dummy TCs
+         * issued for hardware issue workaround
+         */
+        active = isci_tci_active(ihost) - SCI_MAX_PORTS;
+
+        /*
+         * the coalesence timeout doubles at each encoding step, so
          * update it based on the ilog2 value of the outstanding requests
          */
-        active = isci_tci_active(ihost);
         writel(SMU_ICC_GEN_VAL(NUMBER, active) |
                SMU_ICC_GEN_VAL(TIMER, ISCI_COALESCE_BASE + ilog2(active)),
                &ihost->smu_registers->interrupt_coalesce_control);
@@ -1973,7 +1981,7 @@ static void sci_controller_afe_initialization(struct isci_host *ihost)
         }
 
         for (phy_id = 0; phy_id < SCI_MAX_PHYS; phy_id++) {
-                struct scu_afe_transceiver *xcvr = &afe->scu_afe_xcvr[phy_id];
+                struct scu_afe_transceiver __iomem *xcvr = &afe->scu_afe_xcvr[phy_id];
                 const struct sci_phy_oem_params *oem_phy = &oem->phys[phy_id];
                 int cable_length_long =
                         is_long_cable(phy_id, cable_selection_mask);