usr/src/lib/scsi/plugins/ses/SUN/common/sun_enclosure.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21
  22 /*
  23  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25
  26 #include <sys/scsi/impl/spc3_types.h>
  27
  28 #include <stddef.h>
  29 #include <string.h>
  30 #include <strings.h>
  31 #include <libnvpair.h>
  32
  33 #include <scsi/libses.h>
  34 #include <scsi/libses_plugin.h>
  35 #include <scsi/plugins/ses/framework/ses2.h>
  36 #include <scsi/plugins/ses/framework/ses2_impl.h>
  37 #include <scsi/plugins/ses/framework/libses.h>
  38 #include <scsi/plugins/ses/vendor/sun.h>
  39 #include <scsi/plugins/ses/vendor/sun_impl.h>
  40
  41 /*ARGSUSED*/
  42 static int
  43 enc_parse_feature_block(ses_plugin_t *sp, ses_node_t *np)
  44 {
  45         sun_feature_block_impl_t *sfbip;
  46         nvlist_t *encprops;
  47         uint8_t *vsp;
  48         uint_t vsp_len;
  49         uint_t cid_off, cid_len;
  50         uint16_t revision;
  51         uint64_t chunk;
  52         int nverr;
  53
  54         encprops = ses_node_props(np);
  55         if (nvlist_lookup_byte_array(encprops, SES_EN_PROP_VS,
  56             &vsp, &vsp_len) != 0 ||
  57             vsp_len < offsetof(sun_feature_block_impl_t, _reserved2))
  58                 return (0);
  59
  60         sfbip = (sun_feature_block_impl_t *)vsp;
  61
  62         if (strncmp((char *)sfbip->sfbi_spms_header, "SPMS", 4) != 0 ||
  63             sfbip->sfbi_spms_major_ver != 1)
  64                 return (0);
  65
  66         revision = SCSI_READ16(&sfbip->sfbi_spms_revision);
  67
  68         /*
  69          * The offset read from the Sun Feature Block needs to be adjusted
  70          * so that the difference in the sizes of the Enclosure
  71          * Descriptor and the INQUIRY data format is accounted for.
  72          */
  73         cid_len = sfbip->sfbi_chassis_id_len;
  74
  75         if (sfbip->sfbi_chassis_id_off >= 96 && cid_len >= 4) {
  76                 cid_off = sfbip->sfbi_chassis_id_off -
  77                     (sizeof (ses2_ed_impl_t) - 1);
  78                 cid_off += offsetof(ses2_ed_impl_t, st_priv[0]) -
  79                     offsetof(spc3_inquiry_data_t, id_vs_36[0]);
  80
  81                 if (cid_off + cid_len <= vsp_len) {
  82                         SES_NV_ADD(fixed_string, nverr, encprops,
  83                             LIBSES_EN_PROP_CSN, (char *)(vsp + cid_off),
  84                             cid_len);
  85                 }
  86         }
  87
  88         if (revision >= 104) {
  89                 SES_NV_ADD(boolean_value, nverr, encprops,
  90                     LIBSES_EN_PROP_INTERNAL, sfbip->sfbi_int);
  91         }
  92
  93         if (revision >= 105) {
  94                 if (sfbip->sfbi_fw_upload_max_chunk_sz == 0)
  95                         chunk = 512;
  96                 else if (sfbip->sfbi_fw_upload_max_chunk_sz == 0x7f)
  97                         chunk = 65536;
  98                 else
  99                         chunk = 512 * sfbip->sfbi_fw_upload_max_chunk_sz;
 100
 101                 SES_NV_ADD(uint64, nverr, encprops,
 102                     LIBSES_EN_PROP_FIRMWARE_CHUNK_SIZE, chunk);
 103         }
 104
 105         /*
 106          * If this is a subchassis, it will have a subchassis index field
 107          * with a value other than 0.  See SPMS-1r111 4.1.3.1.  If not, we
 108          * will see 0 and will not create the subchassis member at all; note
 109          * that this is backward-compatible with pre-111 implementations that
 110          * treated this as a reserved field.  No such implementation contains
 111          * a subchassis.
 112          */
 113         if (sfbip->sfbi_spms_revision >= 111 &&
 114             sfbip->sfbi_subchassis_index != 0) {
 115                 SES_NV_ADD(uint64, nverr, encprops,
 116                     LIBSES_EN_PROP_SUBCHASSIS_ID,
 117                     sfbip->sfbi_subchassis_index - 1);
 118         }
 119
 120         return (0);
 121 }
 122
 123 int
 124 sun_fill_enclosure_node(ses_plugin_t *sp, ses_node_t *np)
 125 {
 126         ses_snap_t *snap = ses_node_snapshot(np);
 127         nvlist_t *props = ses_node_props(np);
 128         sun_fru_descr_impl_t *sfdi;
 129         int err;
 130         size_t len;
 131
 132         if ((err = enc_parse_feature_block(sp, np)) != 0)
 133                 return (err);
 134
 135         if ((sfdi = ses_plugin_page_lookup(sp, snap,
 136             SUN_DIAGPAGE_FRUID, np, &len)) != NULL) {
 137                 if ((err = sun_fruid_parse_common(sfdi, props)) != 0)
 138                         return (err);
 139         }
 140
 141         return (0);
 142 }