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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright 2019 Joyent, Inc.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <strings.h>
#include <libnvpair.h>
#include <sys/types.h>
#include <libipmi.h>
#include <fm/topo_mod.h>
#include <ctype.h>
#include "chip.h"
#define BUFSZ 128
#define JEDEC_TBL_SZ 5
/*
* The following table maps DIMM manufacturer names to a JEDEC ID as sourced
* from JEDEC publication JEP106W. This is (obviously) a sparse table which
* only contains entries for manufacturers whose DIMM's have been qualified
* for use on Sun platforms.
*/
static const char *jedec_tbl[JEDEC_TBL_SZ][2] =
{
{ "HYUNDAI ELECTRONICS", "00AD" },
{ "INFINEON", "00C1" },
{ "MICRON TECHNOLOGY", "002C" },
{ "QIMONDA", "7F51" },
{ "SAMSUNG", "00CE" },
};
static int
ipmi_serial_lookup(topo_mod_t *mod, char *ipmi_tag, char *buf)
{
char *fru_data;
int i, found_id = 0, serial_len;
ipmi_handle_t *hdl;
ipmi_sdr_fru_locator_t *fru_loc;
ipmi_fru_prod_info_t prod_info;
topo_mod_dprintf(mod, "ipmi_serial_lookup() called\n");
if ((hdl = topo_mod_ipmi_hold(mod)) == NULL) {
topo_mod_dprintf(mod, "Failed to get IPMI handle\n");
return (topo_mod_seterrno(mod, EMOD_UNKNOWN));
}
topo_mod_dprintf(mod, "Looking up FRU data for %s ...\n", ipmi_tag);
if ((fru_loc = ipmi_sdr_lookup_fru(hdl, (const char *)ipmi_tag))
== NULL) {
topo_mod_dprintf(mod, "Failed to lookup %s (%s)\n", ipmi_tag,
ipmi_errmsg(hdl));
topo_mod_ipmi_rele(mod);
return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
}
topo_mod_dprintf(mod, "Reading FRU data ...\n");
if (ipmi_fru_read(hdl, fru_loc, &fru_data) < 0) {
topo_mod_dprintf(mod, "Failed to read FRU data (%s)\n",
ipmi_errmsg(hdl));
topo_mod_ipmi_rele(mod);
return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
}
topo_mod_dprintf(mod, "Parsing product info area ...\n");
if (ipmi_fru_parse_product(hdl, fru_data, &prod_info) < 0) {
topo_mod_dprintf(mod, "Failed to read FRU product info (%s)\n",
ipmi_errmsg(hdl));
free(fru_data);
topo_mod_ipmi_rele(mod);
return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
}
free(fru_data);
topo_mod_ipmi_rele(mod);
topo_mod_dprintf(mod, "FRU Product Serial: %s\n",
prod_info.ifpi_product_serial);
topo_mod_dprintf(mod, "Manufacturer Name: \"%s\"\n",
prod_info.ifpi_manuf_name);
serial_len = strnlen(prod_info.ifpi_product_serial, FRU_INFO_MAXLEN);
/*
* Newer ILOM software that has the fix for CR 6607996 will have
* an 18-character serial number that has been synthesized using
* the recipe from the Sun SPD JEDEC DIMM specification. If we
* find an 18-character then we'll simply use it, as-is, and
* return.
*/
if (serial_len == 18) {
(void) memcpy(buf, prod_info.ifpi_product_serial, 18);
*(buf+18) = '\0';
return (0);
}
/*
* Older ILOM software that DOESN'T have the fix for CR 6607996 will
* only provide the 8 character manufacturer serial number.
*
* However, if for some reason the product info area doesn't have the
* serial information or if the serial isn't 8 characters (we may
* encounter SP's that don't populate the serial field or are buggy and
* populate it with garbage), then we'll stop right now and just set the
* buf to an empty string.
*/
if (serial_len != 8) {
*buf = '\0';
return (0);
}
/*
* What follows is a very crude adaptation of the recipe from the
* Sun SPD JEDEC DIMM specification for synthesizing globally unique
* serial numbers from the 8 character manufacturer serial number.
*
* The Sun serial number takes the following form:
*
* jjjjllyywwssssssss
*
* The components are:
*
* yyyy: JEDEC ID in hex (2 byte manufacture ID, 2 byte continuation
* code).
*
* ll: The memory module's manufacturing location.
*
* yyww: The module's manufacturing date (2-digit year/2-digit week)
*
* ssssssss: The 8 character maufacturer serial number
*/
/*
* First we need to normalize the manufacturer name we pulled out of
* the FRU product info area. Our normalization algorithm is fairly
* simple:
* - convert all alpha chars to uppercase
* - convert non-alphanumeric characters to a single space
*
* We use the normalized name to lookup the JEDEC ID from a static
* table. If the FRU area didn't have a manufacturer name or if the ID
* lookup fails we'll set jjjj to 0000.
*/
for (i = 0; prod_info.ifpi_manuf_name[i]; i++) {
prod_info.ifpi_manuf_name[i] =
toupper(prod_info.ifpi_manuf_name[i]);
if (!isalpha(prod_info.ifpi_manuf_name[i]) &&
!isdigit(prod_info.ifpi_manuf_name[i]))
prod_info.ifpi_manuf_name[i] = (char)0x20;
}
topo_mod_dprintf(mod, "Normalized Manufacturer Name \"%s\"\n",
prod_info.ifpi_manuf_name);
for (i = 0; i < JEDEC_TBL_SZ; i++)
if (strcmp(prod_info.ifpi_manuf_name, jedec_tbl[i][0]) == 0) {
found_id = 1;
break;
}
if (found_id)
(void) memcpy(buf, jedec_tbl[i][1], 4);
else
(void) memcpy(buf, (char *)("0000"), 4);
/*
* The manufacturing location and date is not available via IPMI on
* Sun platforms, so we simply set these six digits to zeros.
*/
(void) memcpy((buf+4), (char *)("000000"), 6);
/*
* Finally, we just copy the 8 character product serial straight over
* and then NULL terminate the string.
*/
(void) memcpy((buf+10), prod_info.ifpi_product_serial, 8);
*(buf+18) = '\0';
return (0);
}
/* ARGSUSED */
int
get_dimm_serial(topo_mod_t *mod, tnode_t *node, topo_version_t vers,
nvlist_t *in, nvlist_t **out)
{
char **entity_refs, fru_serial[FRU_INFO_MAXLEN];
int err, rv = 0, i;
uint_t nelems;
boolean_t found_serial = B_FALSE;
if (topo_prop_get_string_array(node, TOPO_PGROUP_IPMI, "entity_ref",
&entity_refs, &nelems, &err) != 0) {
topo_mod_dprintf(mod, "%s: Failed to lookup entity_ref property"
" (%s)", __func__, topo_strerror(err));
return (topo_mod_seterrno(mod, EMOD_NVL_INVAL));
}
for (i = 0; i < nelems; i++) {
if (ipmi_serial_lookup(mod, entity_refs[i], fru_serial) == 0) {
found_serial = B_TRUE;
break;
} else
topo_mod_dprintf(mod, "Failed to lookup serial for "
"%s\n", entity_refs[i]);
}
if (! found_serial)
(void) strcpy(fru_serial, "");
if (store_prop_val(mod, fru_serial, "serial", out) != 0) {
topo_mod_dprintf(mod, "Failed to set serial\n");
/* topo errno already set */
rv = -1;
}
topo_mod_strfreev(mod, entity_refs, nelems);
return (rv);
}
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