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PCI: export SMBIOS provided firmware instance and label to sysfs

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This patch exports SMBIOS provided firmware instance and label of
onboard PCI devices to sysfs.  New files are:
  /sys/bus/pci/devices/.../label which contains the firmware name for
the device in question, and
  /sys/bus/pci/devices/.../index which contains the firmware device type
instance for the given device.

Signed-off-by: Jordan Hargrave <[email protected]>
Signed-off-by: Narendra K <[email protected]>
Signed-off-by: Jesse Barnes <[email protected]>
This commit is contained in:
Narendra K 2010-07-26 05:56:50 -05:00 • committed by Jesse Barnes
commit 911e1c9b05
7 changed files with 221 additions and 0 deletions
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25
drivers/firmware/dmi_scan.c
View file

@ -277,6 +277,29 @@ static void __init dmi_save_ipmi_device(const struct dmi_header *dm)
list_add_tail(&dev->list, &dmi_devices);
}
static void __init dmi_save_dev_onboard(int instance, int segment, int bus,
int devfn, const char *name)
{
struct dmi_dev_onboard *onboard_dev;
onboard_dev = dmi_alloc(sizeof(*onboard_dev) + strlen(name) + 1);
if (!onboard_dev) {
printk(KERN_ERR "dmi_save_dev_onboard: out of memory.\n");
return;
}
onboard_dev->instance = instance;
onboard_dev->segment = segment;
onboard_dev->bus = bus;
onboard_dev->devfn = devfn;
strcpy((char *)&onboard_dev[1], name);
onboard_dev->dev.type = DMI_DEV_TYPE_DEV_ONBOARD;
onboard_dev->dev.name = (char *)&onboard_dev[1];
onboard_dev->dev.device_data = onboard_dev;
list_add(&onboard_dev->dev.list, &dmi_devices);
}
static void __init dmi_save_extended_devices(const struct dmi_header *dm)
{
const u8 *d = (u8*) dm + 5;
@ -285,6 +308,8 @@ static void __init dmi_save_extended_devices(const struct dmi_header *dm)
if ((*d & 0x80) == 0)
return;
dmi_save_dev_onboard(*(d+1), *(u16 *)(d+2), *(d+4), *(d+5),
dmi_string_nosave(dm, *(d-1)));
dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1)));
}