Decoded HP-specific DMI type 233, and refactored 209 and 221 to use a common function. Also documented specs for these types

Author: Tyler Bell

AUTHORS

@@ -18,6 +18,7 @@ Jens Elkner <[email protected]>
 Jarod Wilson <[email protected]>
 Anton Arapov <[email protected]>
 Roy Franz <[email protected]>
+Tyler Bell <[email protected]>
 
 MANY THANKS TO (IN CHRONOLOGICAL ORDER)
 Werner Heuser

CHANGELOG

@@ -1,3 +1,9 @@
+2015-08-04  Tyler Bell  <[email protected]>
+
+	* dmioem.c: Decode HP-specific DMI type 233
+	* dmioem.c: Refactored HP-specific types 209 and 221 to use common code
+	* dmioem.c: Documented spec for HP-specific types 209, 221 and 233
+
 2015-05-21  Jean Delvare  <[email protected]>
 
 	* dmidecode.c: Fix up invalid DMI type 34 structure length.

dmioem.c

@@ -65,9 +65,34 @@ void dmi_set_vendor(const char *s)
 /*
  * HP-specific data structures are decoded here.
  *
- * Code contributed by John Cagle.
+ * Code contributed by John Cagle and Tyler Bell.
  */
 
+static void dmi_print_hp_net_iface_rec(u8 id, u8 bus, u8 dev, const u8 *mac)
+{
+	/* Some systems do not provide an id. nic_ctr provides an artificial
+	 * id, and assumes the records will be provided "in order".  Also,
+	 * using 0xFF marker is not future proof. 256 NICs is a lot, but
+	 * 640K ought to be enough for anybody(said no one, ever).
+	 * */
+	static u8 nic_ctr;
+
+	if (id == 0xFF)
+		id = ++nic_ctr;
+
+	if (dev == 0x00 && bus == 0x00)
+		printf("\tNIC %d: Disabled\n", id);
+	else if (dev == 0xFF && bus == 0xFF)
+		printf("\tNIC %d: Not Installed\n", id);
+	else
+	{
+		printf("\tNIC %d: PCI device %02x:%02x.%x, "
+			"MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
+			id, bus, dev >> 3, dev & 7,
+			mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+	}
+}
+
 static int dmi_decode_hp(const struct dmi_header *h)
 {
 	u8 *data = h->data;
@@ -98,6 +123,19 @@ static int dmi_decode_hp(const struct dmi_header *h)
 			 *
 			 * This prints the BIOS NIC number,
 			 * PCI bus/device/function, and MAC address
+			 *
+			 * Type 209:
+			 * Offset |  Name  | Width | Description
+			 * -------------------------------------
+			 *  0x00  |  Type  | BYTE  | 0xD1, MAC Info
+			 *  0x01  | Length | BYTE  | Length of structure
+			 *  0x02  | Handle | WORD  | Unique handle
+			 *  0x04  | Dev No | BYTE  | PCI Device/Function No
+			 *  0x05  | Bus No | BYTE  | PCI Bus
+			 *  0x06  |   MAC  | 6B    | MAC addr
+			 *  0x0C  | NIC #2 | 8B    | Repeat 0x04-0x0B
+			 *
+			 * Type 221: is deprecated in the latest docs
 			 */
 			printf(h->type == 221 ?
 				"HP BIOS iSCSI NIC PCI and MAC Information\n" :
@@ -106,25 +144,43 @@ static int dmi_decode_hp(const struct dmi_header *h)
 			ptr = 4;
 			while (h->length >= ptr + 8)
 			{
-				if (data[ptr] == 0x00 && data[ptr + 1] == 0x00)
-					printf("\tNIC %d: Disabled\n", nic);
-				else if (data[ptr] == 0xFF && data[ptr + 1] == 0xFF)
-					printf("\tNIC %d: Not Installed\n", nic);
-				else
-				{
-					printf("\tNIC %d: PCI device %02x:%02x.%x, "
-						"MAC address %02X:%02X:%02X:%02X:%02X:%02X\n",
-						nic, data[ptr + 1],
-						data[ptr] >> 3, data[ptr] & 7,
-						data[ptr + 2], data[ptr + 3],
-						data[ptr + 4], data[ptr + 5],
-						data[ptr + 6], data[ptr + 7]);
-				}
+				dmi_print_hp_net_iface_rec(nic,
+							   data[ptr + 0x01],
+							   data[ptr],
+							   &data[ptr + 0x02]);
 				nic++;
 				ptr += 8;
 			}
 			break;
 
+		case 233:
+			/*
+			 * Vendor Specific: HP ProLiant NIC MAC Information
+			 *
+			 * This prints the BIOS NIC number,
+			 * PCI bus/device/function, and MAC address
+			 *
+			 * Offset |  Name  | Width | Description
+			 * -------------------------------------
+			 *  0x00  |  Type  | BYTE  | 0xE9, NIC structure
+			 *  0x01  | Length | BYTE  | Length of structure
+			 *  0x02  | Handle | WORD  | Unique handle
+			 *  0x04  | Grp No | WORD  | 0 for single segment
+			 *  0x06  | Bus No | BYTE  | PCI Bus
+			 *  0x07  | Dev No | BYTE  | PCI Device/Function No
+			 *  0x08  |   MAC  | 32B   | MAC addr padded w/ 0s
+			 *  0x28  | Port No| BYTE  | Each NIC maps to a Port
+			 */
+			printf("HP BIOS PXE NIC PCI and MAC Information\n");
+			if (h->length < 0x0E) break;
+			/* If the record isn't long enough, we don't have an ID
+			 * use 0xFF to use the internal counter.
+			 * */
+			nic = h->length > 0x28 ? data[0x28] : 0xFF;
+			dmi_print_hp_net_iface_rec(nic, data[0x06], data[0x07],
+						   &data[0x08]);
+			break;
+
 		case 212:
 			/*
 			 * Vendor Specific: HP 64-bit CRU Information