[SCSI] fusion: spi bus reset when driver loads

This patch is for spi.  This issues bus reset when driver
loads. Handling cases when initator has negotiated for packetized,
and target negotiated for non-packetized; effectly this bus reset
is getting both target and initiator on the same sheet of music.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

2 files changed, 17 insertions, 1 deletions

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index d890b2b8a93e..2806662a9cf9 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -4598,6 +4598,14 @@ mpt_GetScsiPortSettings(MPT_ADAPTER *ioc, int portnum)
                                 SCSIPortPage2_t *pPP2 = (SCSIPortPage2_t  *) pbuf;
                                 MpiDeviceInfo_t *pdevice = NULL;
 
+                                /*
+                                 * Save "Set to Avoid SCSI Bus Resets" flag
+                                 */
+                                ioc->spi_data.bus_reset =
+                                    (le32_to_cpu(pPP2->PortFlags) &
+                                MPI_SCSIPORTPAGE2_PORT_FLAGS_AVOID_SCSI_RESET) ?
+                                    0 : 1 ;
+
                                 /* Save the Port Page 2 data
                                  * (reformat into a 32bit quantity)
                                  */
diff --git a/drivers/message/fusion/mptspi.c b/drivers/message/fusion/mptspi.c
index 7dce29277cb7..f148dfa39117 100644
--- a/drivers/message/fusion/mptspi.c
+++ b/drivers/message/fusion/mptspi.c
@@ -384,6 +384,14 @@ mptspi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
                 goto out_mptspi_probe;
         }
 
+        /*
+         * issue internal bus reset
+         */
+        if (ioc->spi_data.bus_reset)
+                mptscsih_TMHandler(hd,
+                    MPI_SCSITASKMGMT_TASKTYPE_RESET_BUS,
+                    0, 0, 0, 0, 5);
+
         scsi_scan_host(sh);
         return 0;
 
@@ -445,7 +453,7 @@ static void __exit
 mptspi_exit(void)
 {
         pci_unregister_driver(&mptspi_driver);
-        
+
         mpt_reset_deregister(mptspiDoneCtx);
         dprintk((KERN_INFO MYNAM
           ": Deregistered for IOC reset notifications\n"));