This patch changes the naming scheme for sas disks. The original names used
disk's sas address and lun, the new scheme uses sas address of the
nearest expander (if available) and a phy id of the used connection.
If no expander is used, the phy id of hba phy is used.
Note that names that refer to RAID or other abstract devices are
unchanged.
Name in raid configuration:
hba_pci_address-sas-raid_sas_address-lunY-partZ
Name in expander bare disk configuration:
hba_pci_address-sas-expander_sas_address-phyX-lunY-partZ
Name format without expanders:
hba_pci_address-sas-phyX-lunY-partZ
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
This reverts commit 8741f2defaf26aafe5ee0fd29954cfdf84ee519c: 'Add virtio-blk support to path_id' and
commit e3d563346c4237af23335cc6904e0662efdf62ad: 'udev: net_id - handle virtio buses'.
Distros may want to take note of this, as it changes behavior.
Clang is a bit more strict wrt format-nonliterals:
http://clang.llvm.org/docs/LanguageExtensions.html#format-string-checking
Adding these extra printf attributes also makes gcc able to find more
problems. E.g. this patch uncovers a format issue in udev-builtin-path_id.c
Some parts looked intetional about breaking the format-nonliteral check.
I added some supression for warnings there.
This matches the bcma support in the network device naming.
Eventually wa want to make sure ID_PATH is equivalent to ID_NET_NAME_PATH,
so we never need to match on the latter.
Set some_transport = true to prevent scm devices from being ignored.
Suggested-by: Harald Hoyer <harald@redhat.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Hyper-V has an abstract bus, which gets renumbered on guest
startup. So instead of the bus numbers we should be using
the device GUIDs, which can be retrieved from the 'device_id'
sysfs attribute.
Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
>
> E.g. I have a platform with two sdhci controllers with different purposes.
> First slot is an external slot while second one is internal with a
> non-removable card.
>
> When there is a card in the external slot at boot, the non-removable card is
> named 'mmcblk1'; without the external card it is 'mmcblk0'. Vice versa for the
> external card.
https://bugs.freedesktop.org/show_bug.cgi?id=52309
