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From c83c1121508cc4283f372789398a909146803b72 Mon Sep 17 00:00:00 2001
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Message-Id: <c83c1121508cc4283f372789398a909146803b72@dist-git>
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From: Boris Fiuczynski <fiuczy@linux.ibm.com>
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Date: Thu, 8 Oct 2020 11:06:59 -0400
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Subject: [PATCH] node_device: detect DASD devices
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Make Direct Access Storage Devices (DASDs) available in the node_device driver.
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Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
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Reviewed-by: Erik Skultety <eskultet@redhat.com>
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Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
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(cherry picked from commit 33bbf589dd739c48ff20d2120e8c4018d241d32f)
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https://bugzilla.redhat.com/show_bug.cgi?id=1853289
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https://bugzilla.redhat.com/show_bug.cgi?id=1865932
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Message-Id: <20201008150700.52157-5-bfiuczyn@redhat.com>
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Reviewed-by: Erik Skultety <eskultet@redhat.com>
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---
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src/node_device/node_device_udev.c | 28 ++++++++++++++++++++++++++++
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1 file changed, 28 insertions(+)
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diff --git a/src/node_device/node_device_udev.c b/src/node_device/node_device_udev.c
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index efe3cebd6a..b6b28bc35a 100644
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--- a/src/node_device/node_device_udev.c
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+++ b/src/node_device/node_device_udev.c
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@@ -870,6 +870,19 @@ udevProcessSD(struct udev_device *device,
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}
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+static int
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+udevProcessDASD(struct udev_device *device,
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+ virNodeDeviceDefPtr def)
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+{
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+ virNodeDevCapStoragePtr storage = &def->caps->data.storage;
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+
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+ if (udevGetStringSysfsAttr(device, "device/uid", &storage->serial) < 0)
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+ return -1;
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+
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+ return udevProcessDisk(device, def);
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+}
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+
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+
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/* This function exists to deal with the case in which a driver does
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* not provide a device type in the usual place, but udev told us it's
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* a storage device, and we can make a good guess at what kind of
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@@ -890,6 +903,19 @@ udevKludgeStorageType(virNodeDeviceDefPtr def)
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def->sysfs_path);
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return 0;
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}
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+
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+ /* For Direct Access Storage Devices (DASDs) there are
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+ * currently no identifiers in udev besides ID_PATH. Since
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+ * ID_TYPE=disk does not exist on DASDs they fall through
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+ * the udevProcessStorage detection logic. */
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+ if (STRPREFIX(def->caps->data.storage.block, "/dev/dasd")) {
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+ def->caps->data.storage.drive_type = g_strdup("dasd");
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+ VIR_DEBUG("Found storage type '%s' for device "
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+ "with sysfs path '%s'",
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+ def->caps->data.storage.drive_type,
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+ def->sysfs_path);
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+ return 0;
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+ }
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VIR_DEBUG("Could not determine storage type "
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"for device with sysfs path '%s'", def->sysfs_path);
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return -1;
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@@ -977,6 +1003,8 @@ udevProcessStorage(struct udev_device *device,
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ret = udevProcessFloppy(device, def);
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} else if (STREQ(def->caps->data.storage.drive_type, "sd")) {
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ret = udevProcessSD(device, def);
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+ } else if (STREQ(def->caps->data.storage.drive_type, "dasd")) {
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+ ret = udevProcessDASD(device, def);
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} else {
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VIR_DEBUG("Unsupported storage type '%s'",
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def->caps->data.storage.drive_type);
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--
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2.28.0
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