commit e5f93a36f72c9817b989f573f7140e3dfbce0f49
author adam radford <aradford@gmail.com> Sat Oct 08 18:15:19 2011 -0700
committer James Bottomley <JBottomley@Parallels.com> Sun Oct 16 11:22:05 2011 -0500
tree f73c18e2583d6abe46d0cb9ed35f9c5ac1f43c0e
parent c8e858fe72230dd2ad07abcbec7c9f201672a8b4

[SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic

The following patch for megaraid_sas adds a driver workaround for
PERC5/1068 based controller FW that keeps a command from the main
kernel that the driver cannot cancel which was causing a kernel panic
in shutdown of the kdump kernel.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/megaraid/megaraid_sas.h

diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 9ffb92d..7375fde 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -139,6 +139,7 @@
 #define MFI_CMD_ABORT				0x06
 #define MFI_CMD_SMP				0x07
 #define MFI_CMD_STP				0x08
+#define MFI_CMD_INVALID				0xff
 
 #define MR_DCMD_CTRL_GET_INFO			0x01010000
 #define MR_DCMD_LD_GET_LIST			0x03010000