[dpdk-dev] [PATCH] net/ice/base: fix symmetric asymmetric RSS interference

Jeff Guo jia.guo at intel.com
Mon Jul 27 05:32:03 CEST 2020


On 7/27/2020 9:28 AM, Lu, Nannan wrote:
>> -----Original Message-----
>> From: dev <dev-bounces at dpdk.org> On Behalf Of Qi Zhang
>> Sent: Saturday, July 25, 2020 8:14 PM
>> To: Yang, Qiming <qiming.yang at intel.com>
>> Cc: Su, Simei <simei.su at intel.com>; dev at dpdk.org; Zhang, Qi Z
>> <qi.z.zhang at intel.com>; stable at dpdk.org
>> Subject: [dpdk-dev] [PATCH] net/ice/base: fix symmetric asymmetric RSS
>> interference
>>
>> A new symmetric RSS rule may force another asymmetric rule to be symmetric,
>> vise versa. The reason is due to the flow engine will try to reuse the existing
>> profile if the input set matches with the new rule. The fix is to disable this
>> optimization for RSS since we are not at the situation as profile shortage.
>>
>> Fixes: ddae0440353f ("net/ice/base: enable symmetric hash for RSS")
>> Cc: stable at dpdk.org
>>
>> Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
>> ---
>>   drivers/net/ice/base/ice_flex_pipe.c | 6 +++---
>>   1 file changed, 3 insertions(+), 3 deletions(-)
>>
> Tested-by: Nannan Lu <nannan.lu at intel.com>


Acked-by: Jeff Guo <jia.guo at intel.com>


>
>> --
>> 2.13.6


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