7f6674624e
Some kernel SAS drivers (e.g. smartpqi) expose ports with num_phys = 0. udev shouldn't treat these ports as wide ports. SAS wide ports always have num_phys > 1. See comments for sas_port_add_phy() in the kernel sources. Sample data from a smartpqi system to illustrate the issue below. Here the phy device is attached to port 0:0, which has no end devices attached and the SAS end device (where sda is attached) is associated with SAS port 0:1, which has no associated phy device. Thus num_phys for port-0:1 is 0. This is arguably wrong, but it's how smartpqi has always set up its devices in sysfs. /sys/class/sas_phy/phy-0:0 -> ../../devices/pci0000:46/0000:46:02.0/0000:47:00.0/host0/scsi_host/host0/phy-0:0/sas_phy/phy-0:0 /sys/devices/pci0000:46/0000:46:02.0/0000:47:00.0/host0/scsi_host/host0/port-0:0/phy-0:0 -> ../phy-0:0 /sys/devices/pci0000:46/0000:46:02.0/0000:47:00.0/host0/scsi_host/host0/phy-0:0/port -> ../port-0:0 /sys/class/sas_device/end_device-0:1 -> ../../devices/pci0000:46/0000:46:02.0/0000:47:00.0/host0/scsi_host/host0/port-0:1/end_device-0:1/sas_device/end_device-0:1 /sys/class/block/sda -> ../../devices/pci0000:46/0000:46:02.0/0000:47:00.0/host0/scsi_host/host0/port-0:1/end_device-0:1/target0:0:0/0:0:0:0/block/sda Signed-off-by: Martin Wilck <mwilck@suse.com> |
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| .clusterfuzzlite | ||
| .github | ||
| .semaphore | ||
| catalog | ||
| coccinelle | ||
| docs | ||
| factory | ||
| hwdb.d | ||
| LICENSES | ||
| man | ||
| mime | ||
| mkosi.conf.d | ||
| mkosi.extra | ||
| mkosi.images | ||
| mkosi.repart | ||
| mkosi.sanitizers | ||
| mkosi.uki-profiles | ||
| modprobe.d | ||
| network | ||
| po | ||
| presets | ||
| profile.d | ||
| rules.d | ||
| shell-completion | ||
| src | ||
| sysctl.d | ||
| sysusers.d | ||
| test | ||
| tmpfiles.d | ||
| tools | ||
| units | ||
| xorg | ||
| .clang-format | ||
| .ctags | ||
| .dir-locals.el | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| .packit.yml | ||
| .pylintrc | ||
| .vimrc | ||
| .ycm_extra_conf.py | ||
| LICENSE.GPL2 | ||
| LICENSE.LGPL2.1 | ||
| meson_options.txt | ||
| meson.build | ||
| meson.version | ||
| mkosi.clangd | ||
| mkosi.clean | ||
| mkosi.conf | ||
| mkosi.coredump-journal-storage.conf | ||
| mkosi.functions | ||
| mkosi.leak-sanitizer-suppressions | ||
| mkosi.postinst.chroot | ||
| NEWS | ||
| README | ||
| README.md | ||
| TODO | ||
System and Service Manager
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