linux-kernel - Re: [PATCH net 0/2] net: ixgbe: Use new flag to disable Relaxed Ordering

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Message-ID: <ea51f2cc-49f7-3689-d503-23c56e6fe90b@huawei.com>
Date:   Thu, 17 Aug 2017 09:22:46 +0800
From:   Ding Tianhong <dingtianhong@...wei.com>
To:     David Miller <davem@...emloft.net>
CC:     <jeffrey.t.kirsher@...el.com>, <keescook@...omium.org>,
        <linux-kernel@...r.kernel.org>, <sparclinux@...r.kernel.org>,
        <intel-wired-lan@...ts.osuosl.org>, <alexander.duyck@...il.com>,
        <netdev@...r.kernel.org>
Subject: Re: [PATCH net 0/2] net: ixgbe: Use new flag to disable Relaxed
 Ordering



On 2017/8/17 1:56, David Miller wrote:
> From: Ding Tianhong <dingtianhong@...wei.com>
> Date: Wed, 16 Aug 2017 17:41:45 +0800
> 
>> The new flag PCI_DEV_FLAGS_NO_RELAXED_ORDERING has been added
>> to indicate that Relaxed Ordering Attributes (RO) should not
>> be used for Transaction Layer Packets (TLP) targeted toward
>> these affected Root Port, it will clear the bit4 in the PCIe
>> Device Control register, so the PCIe device drivers could
>> query PCIe configuration space to determine if it can send
>> TLPs to Root Port with the Relaxed Ordering Attributes set.
>>
>> The ixgbe driver could use this flag to determine if it can
>> send TLPs to Root Port with the Relaxed Ordering Attributes set.
> 
> I'll let the Intel guys pick this up.
> 
Thanks David, but I am not sure when the Intel guys would take over,
just Alex has replied, so I will release a new version according Alex's
suggestion.

> .
>