NVMe: Correct the Controller Configuration settings

The arbitration field was extended by one bit, shifting the shutdown
notification bits by one.  Also, the SQ/CQ entry size was made
configurable for future extensions.

Reported-by: Paul Luse <paul.e.luse@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 347ad5f..9d6febb 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -41,10 +41,12 @@
 	NVME_CC_MPS_SHIFT	= 7,
 	NVME_CC_ARB_RR		= 0 << 11,
 	NVME_CC_ARB_WRRU	= 1 << 11,
-	NVME_CC_ARB_VS		= 3 << 11,
-	NVME_CC_SHN_NONE	= 0 << 13,
-	NVME_CC_SHN_NORMAL	= 1 << 13,
-	NVME_CC_SHN_ABRUPT	= 2 << 13,
+	NVME_CC_ARB_VS		= 7 << 11,
+	NVME_CC_SHN_NONE	= 0 << 14,
+	NVME_CC_SHN_NORMAL	= 1 << 14,
+	NVME_CC_SHN_ABRUPT	= 2 << 14,
+	NVME_CC_IOSQES		= 6 << 16,
+	NVME_CC_IOCQES		= 4 << 20,
 	NVME_CSTS_RDY		= 1 << 0,
 	NVME_CSTS_CFS		= 1 << 1,
 	NVME_CSTS_SHST_NORMAL	= 0 << 2,