Re: [PATCH 4/5] node_device: detect DASD devices

From: Boris Fiuczynski <fiuczy(a)linux.ibm.com&gt; Make Direct Access Storage Devices (DASDs) available in the node_device driver. Reviewed-by: Bjoern Walk <bwalk(a)linux.ibm.com&gt; Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com&gt; --- src/node_device/node_device_udev.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c index 1c4df709..5f9d67cc 100644 --- a/src/node_device/node_device_udev.c +++ b/src/node_device/node_device_udev.c @@ -871,6 +871,19 @@ udevProcessSD(struct udev_device *device, } +static int +udevProcessDasd(struct udev_device *device, + virNodeDeviceDefPtr def)

+{ + virNodeDevCapStoragePtr storage = &def->caps->data.storage; + + if (udevGetStringSysfsAttr(device, "device/uid", &storage->serial) < 0) + return -1; + + return udevProcessDisk(device, def); +} + + /* This function exists to deal with the case in which a driver does * not provide a device type in the usual place, but udev told us it's * a storage device, and we can make a good guess at what kind of @@ -891,6 +904,15 @@ udevKludgeStorageType(virNodeDeviceDefPtr def) def->sysfs_path); return 0; } + /* dasd disk */ + if (STRPREFIX(def->caps->data.storage.block, "/dev/dasd")) { + def->caps->data.storage.drive_type = g_strdup("dasd"); + VIR_DEBUG("Found storage type '%s' for device " + "with sysfs path '%s'", + def->caps->data.storage.drive_type, + def->sysfs_path);

+ return 0; + } VIR_DEBUG("Could not determine storage type " "for device with sysfs path '%s'", def->sysfs_path); return -1; @@ -978,6 +1000,8 @@ udevProcessStorage(struct udev_device *device, ret = udevProcessFloppy(device, def); } else if (STREQ(def->caps->data.storage.drive_type, "sd")) { ret = udevProcessSD(device, def); + } else if (STREQ(def->caps->data.storage.drive_type, "dasd")) { + ret = udevProcessDasd(device, def); } else { VIR_DEBUG("Unsupported storage type '%s'", def->caps->data.storage.drive_type);