On 02/24/11 16:07, John Baldwin wrote:
On Thursday, February 24, 2011 3:35:51 pm Nathan Whitehorn wrote:
On 02/24/11 14:14, John Baldwin wrote:
On Thursday, February 24, 2011 10:00:44 am Nathan Whitehorn wrote:
Thanks! I've received basically this patch from a couple people now. I'm
going to investigate whether this is a more generic way to get this
information (so the list doesn't grow infinitely long), and will commit
this if I can't. Having CAM devices be part of newbus would simplify
this a very great deal...
Note that all these disk devices are not CAM devices, so CAM changing to
use new-bus wouldn't really matter one whit.  They do all show up as 'DISK'
GEOM's however (I also hacked on a GEOM-based libdisk replacement at one
point, though probably less developed than Marcel's.  I used libgeom to
discover DISK devices.)  Given that disk_create() already hooks into GEOM,
that is probably the right way to discover disks in a generic fashion.
Right, stepping through that is how I build the list. Adding a device
description to the XML actually seems like a good idea (and maybe the
drive serial number?). Would anyone have any objections to me starting
to go through and do that?
I think that would be fine, but I don't think GEOM knows about those
properties yet?

It doesn't, but the attached patch changes that. I've added a new field to struct disk (d_descr) meant to hold a human-readable description of the disk, and changed several drivers (cd, ada, ad) to fill it with their model strings. I've also modified geom_disk's config XML to report the disk ident and description. If there aren't any objections, I'll commit this at the end of the day.
-Nathan
Index: cam/scsi/scsi_cd.c
===================================================================
--- cam/scsi/scsi_cd.c  (revision 219031)
+++ cam/scsi/scsi_cd.c  (working copy)
@@ -724,6 +724,12 @@
        softc->disk->d_strategy = cdstrategy;
        softc->disk->d_ioctl = cdioctl;
        softc->disk->d_name = "cd";
+       cam_strvis(softc->disk->d_descr, cgd->inq_data.vendor,
+           sizeof(cgd->inq_data.vendor), sizeof(softc->disk->d_descr));
+       strlcat(softc->disk->d_descr, " ", sizeof(softc->disk->d_descr));
+       cam_strvis(&softc->disk->d_descr[strlen(softc->disk->d_descr)],
+           cgd->inq_data.product, sizeof(cgd->inq_data.product),
+           sizeof(softc->disk->d_descr) - strlen(softc->disk->d_descr));
        softc->disk->d_unit = periph->unit_number;
        softc->disk->d_drv1 = periph;
        if (cpi.maxio == 0)
Index: cam/ata/ata_da.c
===================================================================
--- cam/ata/ata_da.c    (revision 219031)
+++ cam/ata/ata_da.c    (working copy)
@@ -746,6 +746,8 @@
                softc->disk->d_flags |= DISKFLAG_CANDELETE;
        strlcpy(softc->disk->d_ident, cgd->serial_num,
            MIN(sizeof(softc->disk->d_ident), cgd->serial_num_len + 1));
+       strlcpy(softc->disk->d_descr, cgd->ident_data.model,
+           MIN(sizeof(softc->disk->d_descr), sizeof(cgd->ident_data.model)));
        softc->disk->d_hba_vendor = cpi.hba_vendor;
        softc->disk->d_hba_device = cpi.hba_device;
        softc->disk->d_hba_subvendor = cpi.hba_subvendor;
Index: dev/ata/ata-disk.c
===================================================================
--- dev/ata/ata-disk.c  (revision 219031)
+++ dev/ata/ata-disk.c  (working copy)
@@ -145,6 +145,8 @@
        adp->disk->d_flags |= DISKFLAG_CANDELETE;
     strlcpy(adp->disk->d_ident, atadev->param.serial,
        sizeof(adp->disk->d_ident));
+    strlcpy(adp->disk->d_descr, atadev->param.model,
+       sizeof(adp->disk->d_descr));
     parent = device_get_parent(ch->dev);
     if (parent != NULL && device_get_parent(parent) != NULL &&
            (device_get_devclass(parent) ==
Index: geom/geom_disk.c
===================================================================
--- geom/geom_disk.c    (revision 219031)
+++ geom/geom_disk.c    (working copy)
@@ -371,6 +371,8 @@
                    indent, dp->d_fwheads);
                sbuf_printf(sb, "%s<fwsectors>%u</fwsectors>\n",
                    indent, dp->d_fwsectors);
+               sbuf_printf(sb, "%s<ident>%s</ident>\n", indent, dp->d_ident);
+               sbuf_printf(sb, "%s<descr>%s</descr>\n", indent, dp->d_descr);
        }
 }
 
Index: geom/geom_disk.h
===================================================================
--- geom/geom_disk.h    (revision 219031)
+++ geom/geom_disk.h    (working copy)
@@ -85,6 +85,7 @@
        u_int                   d_stripeoffset;
        u_int                   d_stripesize;
        char                    d_ident[DISK_IDENT_SIZE];
+       char                    d_descr[DISK_IDENT_SIZE];
        uint16_t                d_hba_vendor;
        uint16_t                d_hba_device;
        uint16_t                d_hba_subvendor;
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