[SCSI] mpt fusion: rewrite of ioctl_cmds internal generated function

1) rewrite of ioctl_cmds internal generated function that issue commands to
firmware, porting them to be single threaded using the generic MPT_MGMT
struct. All wait Queues are replace by completion Queue.
2) added seperate callback handler for ioctl task managment
(mptctl_taskmgmt_reply), to handle command that timeout
3) rewrite mptctl_bus_reset

Signed-off-by: Kashyap Desai <kadesai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 31 insertions, 6 deletions

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 3efa728fc590..eb6b10eb11d2 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -553,15 +553,21 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id)
 {
         MPT_FRAME_HDR   *mf;
         SCSITaskMgmt_t  *pScsiTm;
+        if (mpt_set_taskmgmt_in_progress_flag(ioc) != 0)
+                return 0;
+
 
         mf = mpt_get_msg_frame(mptsasDeviceResetCtx, ioc);
         if (mf == NULL) {
                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT
-                        "%s, no msg frames @%d!!\n",
-                        ioc->name, __func__, __LINE__));
-                return 0;
+                        "%s, no msg frames @%d!!\n", ioc->name,
+                        __func__, __LINE__));
+                goto out_fail;
         }
 
+        dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
+                ioc->name, mf));
+
         /* Format the Request
          */
         pScsiTm = (SCSITaskMgmt_t *) mf;
@@ -574,9 +580,18 @@ mptsas_target_reset(MPT_ADAPTER *ioc, u8 channel, u8 id)
 
         DBG_DUMP_TM_REQUEST_FRAME(ioc, (u32 *)mf);
 
+        dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+           "TaskMgmt type=%d (sas device delete) fw_channel = %d fw_id = %d)\n",
+           ioc->name, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, channel, id));
+
         mpt_put_msg_frame_hi_pri(mptsasDeviceResetCtx, ioc, mf);
 
         return 1;
+
+ out_fail:
+
+        mpt_clear_taskmgmt_in_progress_flag(ioc);
+        return 0;
 }
 
 /**
@@ -719,9 +734,12 @@ mptsas_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
         if (!ev) {
                 dfailprintk(ioc, printk(MYIOC_s_WARN_FMT "%s, failed to allocate mem @%d..!!\n",
                     ioc->name,__func__, __LINE__));
-                return 0;
+                goto out_fail;
         }
 
+        dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT "TaskMgmt request (mf=%p)\n",
+                ioc->name, mf));
+
         INIT_WORK(&ev->work, mptsas_hotplug_work);
         ev->ioc = ioc;
         ev->handle = le16_to_cpu(sas_event_data->DevHandle);
@@ -734,10 +752,19 @@ mptsas_taskmgmt_complete(MPT_ADAPTER *ioc, MPT_FRAME_HDR *mf, MPT_FRAME_HDR *mr)
             sizeof(__le64));
         ev->sas_address = le64_to_cpu(sas_address);
         ev->device_info = le32_to_cpu(sas_event_data->DeviceInfo);
+        dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
+           "TaskMgmt type=%d (sas device delete) fw_channel = %d fw_id = %d)\n",
+           ioc->name, MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET, channel, id));
+
         ev->event_type = MPTSAS_DEL_DEVICE;
         schedule_work(&ev->work);
         kfree(target_reset_list);
 
+ out_fail:
+
+        mpt_clear_taskmgmt_in_progress_flag(ioc);
+        return 0;
+
 
         /*
          * issue target reset to next device in the queue
@@ -3291,8 +3318,6 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
         /* Clear the TM flags
          */
-        hd->tmPending = 0;
-        hd->tmState = TM_STATE_NONE;
         hd->abortSCpnt = NULL;
 
         /* Clear the pointer used to store