firmware: dmi_scan: Save SMBIOS Type 9 System Slots
Save SMBIOS Type 9 System Slots during DMI scan. PCI address of
onboard devices was already saved but not for slots.
Signed-off-by: Jordan Hargrave <jordan_hargrave@dell.com>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 908653f..88bebe1 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -321,26 +321,31 @@
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)
+static void __init dmi_save_dev_pciaddr(int instance, int segment, int bus,
+ int devfn, const char *name, int type)
{
- struct dmi_dev_onboard *onboard_dev;
+ struct dmi_dev_onboard *dev;
- onboard_dev = dmi_alloc(sizeof(*onboard_dev) + strlen(name) + 1);
- if (!onboard_dev)
+ /* Ignore invalid values */
+ if (type == DMI_DEV_TYPE_DEV_SLOT &&
+ segment == 0xFFFF && bus == 0xFF && devfn == 0xFF)
return;
- onboard_dev->instance = instance;
- onboard_dev->segment = segment;
- onboard_dev->bus = bus;
- onboard_dev->devfn = devfn;
+ dev = dmi_alloc(sizeof(*dev) + strlen(name) + 1);
+ if (!dev)
+ return;
- 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;
+ dev->instance = instance;
+ dev->segment = segment;
+ dev->bus = bus;
+ dev->devfn = devfn;
- list_add(&onboard_dev->dev.list, &dmi_devices);
+ strcpy((char *)&dev[1], name);
+ dev->dev.type = type;
+ dev->dev.name = (char *)&dev[1];
+ dev->dev.device_data = dev;
+
+ list_add(&dev->dev.list, &dmi_devices);
}
static void __init dmi_save_extended_devices(const struct dmi_header *dm)
@@ -353,10 +358,23 @@
return;
name = dmi_string_nosave(dm, d[0x4]);
- dmi_save_dev_onboard(d[0x6], *(u16 *)(d + 0x7), d[0x9], d[0xA], name);
+ dmi_save_dev_pciaddr(d[0x6], *(u16 *)(d + 0x7), d[0x9], d[0xA], name,
+ DMI_DEV_TYPE_DEV_ONBOARD);
dmi_save_one_device(d[0x5] & 0x7f, name);
}
+static void __init dmi_save_system_slot(const struct dmi_header *dm)
+{
+ const u8 *d = (u8 *)dm;
+
+ /* Need SMBIOS 2.6+ structure */
+ if (dm->length < 0x11)
+ return;
+ dmi_save_dev_pciaddr(*(u16 *)(d + 0x9), *(u16 *)(d + 0xD), d[0xF],
+ d[0x10], dmi_string_nosave(dm, d[0x4]),
+ DMI_DEV_TYPE_DEV_SLOT);
+}
+
static void __init count_mem_devices(const struct dmi_header *dm, void *v)
{
if (dm->type != DMI_ENTRY_MEM_DEVICE)
@@ -427,6 +445,9 @@
dmi_save_ident(dm, DMI_CHASSIS_SERIAL, 7);
dmi_save_ident(dm, DMI_CHASSIS_ASSET_TAG, 8);
break;
+ case 9: /* System Slots */
+ dmi_save_system_slot(dm);
+ break;
case 10: /* Onboard Devices Information */
dmi_save_devices(dm);
break;
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 5055ac3..5e9c74c 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -22,6 +22,7 @@
DMI_DEV_TYPE_IPMI = -1,
DMI_DEV_TYPE_OEM_STRING = -2,
DMI_DEV_TYPE_DEV_ONBOARD = -3,
+ DMI_DEV_TYPE_DEV_SLOT = -4,
};
enum dmi_entry_type {