[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, 4 insertions, 15 deletions

diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c
index 2463731ed355..a6a2bbda2f18 100644
--- a/drivers/message/fusion/mptscsih.c
+++ b/drivers/message/fusion/mptscsih.c
@@ -99,7 +99,7 @@ int	mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id,
 int             mptscsih_ioc_reset(MPT_ADAPTER *ioc, int post_reset);
 int             mptscsih_event_process(MPT_ADAPTER *ioc, EventNotificationReply_t *pEvReply);
 
-static void
+void
 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code);
 static int      mptscsih_get_completion_code(MPT_ADAPTER *ioc,
                 MPT_FRAME_HDR *req, MPT_FRAME_HDR *reply);
@@ -1304,7 +1304,7 @@ mptscsih_qcmd(struct scsi_cmnd *SCpnt, void (*done)(struct scsi_cmnd *))
         dmfprintk(ioc, printk(MYIOC_s_DEBUG_FMT "qcmd: SCpnt=%p, done()=%p\n",
                 ioc->name, SCpnt, done));
 
-        if (hd->resetPending) {
+        if (ioc->taskmgmt_quiesce_io) {
                 dtmprintk(ioc, printk(MYIOC_s_WARN_FMT "qcmd: SCpnt=%p timeout + 60HZ\n",
                         ioc->name, SCpnt));
                 return SCSI_MLQUEUE_HOST_BUSY;
@@ -1709,11 +1709,6 @@ mptscsih_abort(struct scsi_cmnd * SCpnt)
                 goto out;
         }
 
-        if (hd->resetPending) {
-                retval = FAILED;
-                goto out;
-        }
-
         if (hd->timeouts < -1)
                 hd->timeouts++;
 
@@ -1782,11 +1777,6 @@ mptscsih_dev_reset(struct scsi_cmnd * SCpnt)
                ioc->name, SCpnt);
         scsi_print_command(SCpnt);
 
-        if (hd->resetPending) {
-                retval = FAILED;
-                goto out;
-        }
-
         vdevice = SCpnt->device->hostdata;
         if (!vdevice || !vdevice->vtarget) {
                 retval = 0;
@@ -1967,7 +1957,7 @@ mptscsih_taskmgmt_reply(MPT_ADAPTER *ioc, u8 type,
 }
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
-static void
+void
 mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
 {
         char *desc;
@@ -2001,6 +1991,7 @@ mptscsih_taskmgmt_response_code(MPT_ADAPTER *ioc, u8 response_code)
         printk(MYIOC_s_INFO_FMT "Response Code(0x%08x): F/W: %s\n",
                 ioc->name, response_code, desc);
 }
+EXPORT_SYMBOL(mptscsih_taskmgmt_response_code);
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
@@ -2442,12 +2433,10 @@ mptscsih_ioc_reset(MPT_ADAPTER *ioc, int reset_phase)
         case MPT_IOC_SETUP_RESET:
                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
                     "%s: MPT_IOC_SETUP_RESET\n", ioc->name, __func__));
-                hd->resetPending = 1;
                 break;
         case MPT_IOC_PRE_RESET:
                 dtmprintk(ioc, printk(MYIOC_s_DEBUG_FMT
                     "%s: MPT_IOC_PRE_RESET\n", ioc->name, __func__));
-                hd->resetPending = 0;
                 mptscsih_flush_running_cmds(hd);
                 break;
         case MPT_IOC_POST_RESET: