[SCSI] mpt fusion: Adding DeviceResetCtx for internal Device reset frame

1.) 	Added taskmgmt_quiesce_io flag in IOC and removed resetPending from
	_MPT_SCSI_HOST struct.
2.)	Reset from Scsi mid layer and internal Reset are seperate context.
	Adding DeviceResetCtx for internal Device reset frame.
	mptsas_taskmgmt_complete is optimized as part of implementation.

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

1 files changed, 11 insertions, 2 deletions

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index af862bf6386f..ae203eca831f 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -6243,6 +6243,7 @@ mpt_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
 {
         switch (reset_phase) {
         case MPT_IOC_SETUP_RESET:
+                ioc->taskmgmt_quiesce_io = 1;
                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
                 break;
@@ -6595,8 +6596,11 @@ mpt_set_taskmgmt_in_progress_flag(MPT_ADAPTER *ioc)
         }
         retval = 0;
         ioc->taskmgmt_in_progress = 1;
-        if (ioc->alt_ioc)
+        ioc->taskmgmt_quiesce_io = 1;
+        if (ioc->alt_ioc) {
                 ioc->alt_ioc->taskmgmt_in_progress = 1;
+                ioc->alt_ioc->taskmgmt_quiesce_io = 1;
+        }
  out:
         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
         return retval;
@@ -6615,8 +6619,11 @@ mpt_clear_taskmgmt_in_progress_flag(MPT_ADAPTER *ioc)
 
         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
         ioc->taskmgmt_in_progress = 0;
-        if (ioc->alt_ioc)
+        ioc->taskmgmt_quiesce_io = 0;
+        if (ioc->alt_ioc) {
                 ioc->alt_ioc->taskmgmt_in_progress = 0;
+                ioc->alt_ioc->taskmgmt_quiesce_io = 0;
+        }
         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);
 }
 EXPORT_SYMBOL(mpt_clear_taskmgmt_in_progress_flag);
@@ -6731,9 +6738,11 @@ mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag)
 
         spin_lock_irqsave(&ioc->taskmgmt_lock, flags);
         ioc->ioc_reset_in_progress = 0;
+        ioc->taskmgmt_quiesce_io = 0;
         ioc->taskmgmt_in_progress = 0;
         if (ioc->alt_ioc) {
                 ioc->alt_ioc->ioc_reset_in_progress = 0;
+                ioc->alt_ioc->taskmgmt_quiesce_io = 0;
                 ioc->alt_ioc->taskmgmt_in_progress = 0;
         }
         spin_unlock_irqrestore(&ioc->taskmgmt_lock, flags);