[dmidecode] [PATCH v2 4/4] dmioem: Decode HPE OEM record 236

[Jerry Hoemann]

HPE OEM record 236 describes the HPE ProLiant HDD Backplane.  A non-backward
compatible change was introduced with Gen10 Plus which retracted three
fields and made them "Reserved."

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
---
 dmioem.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/dmioem.c b/dmioem.c
index 4798f89..bf8def1 100644
--- a/dmioem.c
+++ b/dmioem.c
@@ -317,6 +317,41 @@ static int dmi_decode_hp(const struct dmi_header *h)
                                                   &data[0x08]);
                        break;
 
+               case 236:
+                       /*
+                        * Vendor Specific: HPE ProLiant HDD Backplane
+                        *
+                        * Offset |  Name      | Width | Description
+                        * ---------------------------------------
+                        *  0x00  | Type       | BYTE  | 0xEC, HDD Backplane
+                        *  0x01  | Length     | BYTE  | Length of structure
+                        *  0x02  | Handle     | WORD  | Unique handle
+                        *  0x04  | I2C Address| BYTE  | Backplane FRU I2C 
Address
+                        *  0x05  | Box Number | WORD  | Backplane Box Number
+                        *  0x07  | NVRAM ID   | WORD  | Backplane NVRAM ID
+                        *  0x09  | WWID       | QWORD | SAS Expander WWID
+                        *  0x11  | Total Bays | BYTE  | Total SAS Bays
+                        *  0x12  | A0 Bays    | BYTE  | (deprecated) Number of 
SAS drive bays behind port 0xA0
+                        *  0x13  | A2 Bays    | BYTE  | (deprecated) Number of 
SAS drive bays behind port 0xA2
+                        *  0x14  | Name       | STRING| (deprecated) Backplane 
Name
+                        */
+                       pr_handle_name("%s HDD Backplane FRU Information", 
company);
+
+                       pr_attr("FRU I2C Address", "0x%X raw(0x%X)", data[0x4] 
>> 1, data[0x4]);
+                       pr_attr("Box Number", "%d", WORD(data + 0x5));
+                       pr_attr("NVRAM ID", "0x%X", WORD(data + 0x7));
+                       if (h->length < 0x11) break;
+                       pr_attr("SAS Expander WWID", "0x%X", QWORD(data + 0x9));
+                       if (h->length < 0x12) break;
+                       pr_attr("Total SAS Bays", "%d", data[0x11]);
+                       if (h->length < 0x15) break;
+                       if (gen < G10P) {
+                               pr_attr("A0 Bay Count", "%d", data[0x12]);
+                               pr_attr("A2 Bay Count", "%d", data[0x13]);
+                               pr_attr("Backplane Name", "%s", dmi_string(h, 
data[0x14]));
+                       }
+                       break;
+
                default:
                        return 0;
        }
-- 
2.27.0