Messages in this thread | | | Subject | Re: [PATCH] scsi: hisi_sas: display correct proc_name in sysfs | From | John Garry <> | Date | Tue, 12 May 2020 12:07:10 +0100 |
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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@huawei.com>
And the $subject is not right. It should be simply "display proc_name in sysfs".
Thanks, John
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