On 12/05/2020 11:30, Jason Yan wrote:
在 2020/5/12 18:00, John Garry 写道:
On 12/05/2020 10:35, Jason Yan wrote:
在 2020/5/12 16:23, John Garry 写道:
On 12/05/2020 07:33, Jason Yan wrote:
The 'proc_name' entry in sysfs for hisi_sas is 'null' now becuase
it is
not initialized in scsi_host_template. It looks like:
[root@localhost ~]# cat /sys/class/scsi_host/host2/proc_name
(null)
hmmm.. it would be good to tell us what this buys us, apart from the
proc_name file.
When there is more than one storage cards(or controllers) in the
system, I'm tring to find out which host is belong to which card. And
then I found this in scsi_host in sysfs but the output is '(null)'
which is odd.
"dmesg | grep host" would give this info, like:
root@(none)$ dmesg | grep host0
[ 8.877245] scsi host0: hisi_sas_v2_hw
NO, if long time after the system boot, dmesg cannot get this
infomation. It is flushed by other logs.
ok, so I don't see any other way to currently do this, even though using
proc_name is a bit suspect, so:
Acked-by: John Garry <john.garry@xxxxxxxxxx>
And the $subject is not right. It should be simply "display proc_name in
sysfs".
Thanks,
John
