NVMe: Update Identify Controller data structure

The driver was still using an old definition of Identify Controller
which only came to light once we started using the 'number of namespaces'
field properly.

Reported-by: Nisheeth Bhat <nisheeth.bhat@intel.com>
Reported-by: Khosrow Panah <Khosrow.Panah@idt.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>

include/linux/nvme.h

@@ -57,6 +57,18 @@ enum {
 	NVME_CSTS_SHST_CMPLT	= 2 << 2,
 };
 
+struct nvme_id_power_state {
+	__le16			max_power;	/* centiwatts */
+	__u16			rsvd2;
+	__le32			entry_lat;	/* microseconds */
+	__le32			exit_lat;	/* microseconds */
+	__u8			read_tput;
+	__u8			read_lat;
+	__u8			write_tput;
+	__u8			write_lat;
+	__u8			rsvd16[16];
+};
+
 #define NVME_VS(major, minor)	(major << 16 | minor)
 
 struct nvme_id_ctrl {
@@ -65,9 +77,11 @@ struct nvme_id_ctrl {
 	char			sn[20];
 	char			mn[40];
 	char			fr[8];
-	__le32			nn;
 	__u8			rab;
-	__u8			rsvd77[178];
+	__u8			ieee[3];
+	__u8			mic;
+	__u8			mdts;
+	__u8			rsvd78[178];
 	__le16			oacs;
 	__u8			acl;
 	__u8			aerl;
@@ -76,15 +90,18 @@ struct nvme_id_ctrl {
 	__u8			elpe;
 	__u8			npss;
 	__u8			rsvd264[248];
-	__le64			psd[32];
+	__u8			sqes;
+	__u8			cqes;
+	__u8			rsvd514[2];
+	__le32			nn;
 	__le16			oncs;
 	__le16			fuses;
 	__u8			fna;
 	__u8			vwc;
 	__le16			awun;
 	__le16			awupf;
-	__u8			rsvd778[246];
-	__u8			cmdset[2048];
+	__u8			rsvd530[1518];
+	struct nvme_id_power_state	psd[32];
 	__u8			vs[1024];
 };