RE: [PATCH] [SCSI] LIBSAS: fix libsas link error issue

Xiangliang Yu
2011-06-16T06:38:20Z

> >[Jack Wang]
> >I don't think the statement below is error:
> >child->linkrate = min(parent_phy->linkrate, child->max_linkrate);

The parent_phy is same to child_phy, I don't think it's right.

>> Yes, you can test like this.
>> >Then expander1's linkrate will set to 3G, and expander2's linkrate will
set
>> >to 6G, that is correct.
>> yes
>> > But the connection rate will be 3G from hba to
>> >expander2.
>> How to configure the connection rate?
>> Now, MVSAS driver get 6G from sas_ex_get_linkrate function, and set
linkrate
>> of OPEN address frame to the value. right?
>>
>> --
>[Jack Wang]
>Connection rate is auto, link layer will insert deletable primitives to do
>rate matching (sas2r15 7.14).

>Yes, you should set the linkrate to that value .

OK.MVSAS driver seem right. But, the problem is command fail because of link error, that is why I commit this patch. And my patch work fine.
You can reproduce the issue and fix it. Thanks!