linux-kernel - Re: [PATCH for-next 05/20] RDMA/hns: Add command queue support for hip08 RoCE driver

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Message-ID: <05bebc4c-eabf-a21b-cf5a-79a09fe71e02@tom.com>
Date:   Thu, 28 Sep 2017 12:34:38 +0800
From:   "Wei Hu (Xavier)" <xavier.huwei@....com>
To:     Doug Ledford <dledford@...hat.com>
Cc:     Leon Romanovsky <leon@...nel.org>,
        "Wei Hu (Xavier)" <xavier.huwei@...wei.com>,
        linux-rdma@...r.kernel.org, lijun_nudt@....com, oulijun@...wei.com,
        charles.chenxin@...wei.com, liuyixian@...wei.com,
        xushaobo2@...wei.com, zhangxiping3@...wei.com, linuxarm@...wei.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH for-next 05/20] RDMA/hns: Add command queue support for
 hip08 RoCE driver



On 2017/9/27 20:41, Doug Ledford wrote:
> On Wed, 2017-09-27 at 08:21 -0400, Doug Ledford wrote:
>>> And if you argee, after this patchset has been accepted we will
>> send a
>>> following up patch :
>>>      In hns_roce_cmq_send function, replace
>>>          usleep_range(1000, 2000);
>>>      with the following statement:
>>>           udelay(1);
>>>      And if so, we can avoid using usleep_range function in
>> spin_lock_bh
>>> spin region,
>>>      because it probally cause calltrace.
>> Ok, I'm fine with that.  I'll pull these in.
> OK, these are in my tree, thanks.
Thanks a lot.

     Regards
Wei Hu