summaryrefslogtreecommitdiff
path: root/lib/dimm_spd.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/dimm_spd.c')
-rw-r--r--lib/dimm_spd.c171
1 files changed, 166 insertions, 5 deletions
diff --git a/lib/dimm_spd.c b/lib/dimm_spd.c
index 1f27de2..91ae117 100644
--- a/lib/dimm_spd.c
+++ b/lib/dimm_spd.c
@@ -63,10 +63,11 @@ const struct valstr spd_memtype_vals[] = {
{ 0x09, "DDR2 SDRAM FB-DIMM" },
{ 0x0A, "DDR2 SDRAM FB-DIMM Probe" },
{ 0x0B, "DDR3 SDRAM" },
+ { 0x0C, "DDR4 SDRAM" },
{ 0x00, NULL },
};
-const struct valstr ddr3_density_vals[] =
+const struct valstr ddr3_density_vals[] =
{
{ 0, "256 Mb" },
{ 1, "512 Mb" },
@@ -87,6 +88,8 @@ const struct valstr ddr3_banks_vals[] =
{ 0x00, NULL },
};
+
+#define ddr4_ecc_vals ddr3_ecc_vals
const struct valstr ddr3_ecc_vals[] =
{
{ 0, "0 bits" },
@@ -94,6 +97,62 @@ const struct valstr ddr3_ecc_vals[] =
{ 0x00, NULL },
};
+const struct valstr ddr4_density_vals[] =
+{
+ { 0, "256 Mb" },
+ { 1, "512 Mb" },
+ { 2, "1 Gb" },
+ { 3, "2 Gb" },
+ { 4, "4 Gb" },
+ { 5, "8 Gb" },
+ { 6, "16 Gb" },
+ { 7, "32 Gb" },
+ { 0x00, NULL },
+};
+
+const struct valstr ddr4_banks_vals[] =
+{
+ { 0, "2 (4 Banks)" },
+ { 1, "3 (8 Banks)" },
+ { 0x00, NULL },
+};
+
+const struct valstr ddr4_bank_groups[] =
+{
+ { 0, "0 (no Bank Groups)" },
+ { 1, "1 (2 Bank Groups)" },
+ { 2, "2 (4 Bank Groups)" },
+ { 0x00, NULL },
+};
+
+const struct valstr ddr4_package_type[] =
+{
+ { 0, "Monolithic DRAM Device" },
+ { 1, "Non-Monolithic Device" },
+ { 0x00, NULL },
+};
+
+const struct valstr ddr4_technology_type[] =
+{
+ { 0, "Extended module type, see byte 15" },
+ { 1, "RDIMM" },
+ { 2, "UDIMM" },
+ { 3, "SO-DIMM" },
+ { 4, "LRDIMM" },
+ { 5, "Mini-RDIMM" },
+ { 6, "Mini-UDIMM" },
+ { 7, "7 - Reserved" },
+ { 8, "72b-SO-RDIMM" },
+ { 9, "72b-SO-UDIMM" },
+ { 10, "10 - Reserved" },
+ { 11, "11 - Reserved" },
+ { 12, "16b-SO-DIMM" },
+ { 13, "32b-SO-DIMM" },
+ { 14, "14 - Reserved" },
+ { 15, "No base memory present" },
+ { 0x00, NULL },
+};
+
const struct valstr spd_config_vals[] = {
{ 0x00, "None" },
{ 0x01, "Parity" },
@@ -800,6 +859,92 @@ ipmi_spd_print(uint8_t *spd_data, int len)
printf( "%c", *pchPN++ );
}
printf("\n");
+ } else if (spd_data[2] == 0x0C) /* DDR4 SDRAM */
+ {
+ int i;
+ int sdram_cap = 0;
+ int pri_bus_width = 0;
+ int sdram_width = 0;
+ int mem_size = 0;
+ int lrank_dimm;
+
+ if (len < 148)
+ return -1; /* we need first 91 bytes to do our thing */
+
+ /* "Logical rank" referes to the individually addressable die
+ * in a 3DS stack and has no meaning for monolithic or
+ * multi-load stacked SDRAMs; however, for the purposes of
+ * calculating the capacity of the module, one should treat
+ * monolithic and multi-load stack SDRAMs as having one logical
+ * rank per package rank.
+ */
+ lrank_dimm = (spd_data[12]>>3&0x3) + 1; /* Number of Package Ranks per DIMM */
+ if ((spd_data[6] & 0x3) == 0x10) { /* 3DS package Type */
+ lrank_dimm *= ((spd_data[6]>>4)&0x3) + 1; /* Die Count */
+ }
+ sdram_cap = ldexp(256,(spd_data[4]&15));
+ pri_bus_width = ldexp(8,(spd_data[13]&7));
+ sdram_width = ldexp(4,(spd_data[12]&7));
+ mem_size = (sdram_cap/8) * (pri_bus_width/sdram_width) * lrank_dimm;
+ printf(" SDRAM Package Type : %s\n", val2str((spd_data[6]>>7), ddr4_package_type));
+ printf(" Technology : %s\n", val2str((spd_data[3]&15), ddr4_technology_type));
+ printf(" SDRAM Die Count : %d\n", ((spd_data[6]>>4) & 3)+1);
+ printf(" SDRAM Capacity : %d Mb\n", sdram_cap );
+ printf(" Memory Bank Group : %s\n", val2str((spd_data[4]>>6 & 0x3), ddr4_bank_groups));
+ printf(" Memory Banks : %s\n", val2str((spd_data[4]>>4 & 0x3), ddr4_banks_vals));
+ printf(" Primary Bus Width : %d bits\n", pri_bus_width );
+ printf(" SDRAM Device Width : %d bits\n", sdram_width );
+ printf(" Logical Rank per DIMM : %d\n", lrank_dimm );
+ printf(" Memory size : %d MB\n", mem_size );
+
+ printf(" Memory Density : %s\n", val2str(spd_data[4]&15, ddr4_density_vals));
+ printf(" 1.2 V Nominal Op : %s\n", (((spd_data[11]&3) != 3) ? "No":"Yes" ) );
+ printf(" TBD1 V Nominal Op : %s\n", (((spd_data[11]>>2&3) != 3) ? "No":"Yes" ) );
+ printf(" TBD2 V Nominal Op : %s\n", (((spd_data[11]>>4&3) != 3) ? "No":"Yes" ) );
+ printf(" Error Detect/Cor : %s\n", val2str(spd_data[13]>>3, ddr4_ecc_vals));
+
+ printf(" Manufacturer : ");
+ switch (spd_data[320]&127)
+ {
+ case 0:
+ printf("%s\n", val2str(spd_data[321], jedec_id1_vals));
+ break;
+
+ case 1:
+ printf("%s\n", val2str(spd_data[321], jedec_id2_vals));
+ break;
+
+ case 2:
+ printf("%s\n", val2str(spd_data[321], jedec_id3_vals));
+ break;
+
+ case 3:
+ printf("%s\n", val2str(spd_data[321], jedec_id4_vals));
+ break;
+
+ case 4:
+ printf("%s\n", val2str(spd_data[321], jedec_id5_vals));
+ break;
+
+ default:
+ printf("%s\n", "JEDEC JEP106 update required");
+
+ }
+
+ u_int year = (spd_data[323]>>4)*10 + spd_data[323]&15;
+ u_int week = (spd_data[324]>>4)*10 + spd_data[324]&15;
+ printf(" Manufacture Date : year %4d week %2d\n",
+ 2000 + year, week);
+
+ printf(" Serial Number : %02x%02x%02x%02x\n",
+ spd_data[325], spd_data[326], spd_data[327], spd_data[328]);
+
+ printf(" Part Number : ");
+ for (i=329; i <= 348; i++)
+ {
+ printf( "%c", spd_data[i]);
+ }
+ printf("\n");
}
else
{
@@ -868,7 +1013,7 @@ ipmi_spd_print_fru(struct ipmi_intf * intf, uint8_t id)
struct ipmi_rs * rsp;
struct ipmi_rq req;
struct fru_info fru;
- uint8_t spd_data[256], msg_data[4];
+ uint8_t *spd_data, msg_data[4];
int len, offset;
msg_data[0] = id;
@@ -896,11 +1041,20 @@ ipmi_spd_print_fru(struct ipmi_intf * intf, uint8_t id)
lprintf(LOG_DEBUG, "fru.size = %d bytes (accessed by %s)",
fru.size, fru.access ? "words" : "bytes");
+
if (fru.size < 1) {
lprintf(LOG_ERR, " Invalid FRU size %d", fru.size);
return -1;
}
+ spd_data = malloc(fru.size);
+
+ if (spd_data == NULL) {
+ printf(" Unable to malloc memory for spd array of size=%d\n",
+ fru.size);
+ return -1;
+ }
+
memset(&req, 0, sizeof(req));
req.msg.netfn = IPMI_NETFN_STORAGE;
req.msg.cmd = GET_FRU_DATA;
@@ -908,22 +1062,27 @@ ipmi_spd_print_fru(struct ipmi_intf * intf, uint8_t id)
req.msg.data_len = 4;
offset = 0;
- memset(spd_data, 0, 256);
+ memset(spd_data, 0, fru.size);
do {
+ int i;
msg_data[0] = id;
- msg_data[1] = offset;
- msg_data[2] = 0;
+ msg_data[1] = offset & 0xFF;
+ msg_data[2] = offset >> 8;
msg_data[3] = FRU_DATA_RQST_SIZE;
rsp = intf->sendrecv(intf, &req);
if (rsp == NULL) {
printf(" Device not present (No Response)\n");
+ free(spd_data);
+ spd_data = NULL;
return -1;
}
if (rsp->ccode > 0) {
printf(" Device not present (%s)\n",
val2str(rsp->ccode, completion_code_vals));
+ free(spd_data);
+ spd_data = NULL;
/* Timeouts are acceptable. No DIMM in the socket */
if (rsp->ccode == 0xc3)
return 1;
@@ -938,6 +1097,8 @@ ipmi_spd_print_fru(struct ipmi_intf * intf, uint8_t id)
/* now print spd info */
ipmi_spd_print(spd_data, offset);
+ free(spd_data);
+ spd_data = NULL;
return 0;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-15 21:13:56 +0000