Re: [dpdk-dev] [dpdk-stable] [PATCH v2] app/testpmd: fix setting RSS queue rule failure on fedora30

[Ferruh Yigit <ferruh.yigit@intel.com>]

On 7/3/2019 4:23 PM, Iremonger, Bernard wrote:
> 
> <snip>
>>> Subject: Re: [dpdk-dev] [PATCH v2] app/testpmd: fix setting RSS queue
>>> rule failure on fedora30
>>>
>>> On 06/25, Haiyue Wang wrote:
>>>> Declare a local variable 'arg' to hold the pointer to ARGS_ENTRY_ARB,
>>>> otherwise, the pop 'arg' in 'parse_int' holds wrong data like 'arg->
>>>> offset = 5912737, arg->size = 0', this caused the parse failure.
>>>>
>>>> If calling like 'push_args(ctx, ARGS_ENTRY_ARB..)', the below code
>>>> for assgining 'offset & size' will be missed for some gcc optimization.
>>>>
>>>> parse_vc_action_rss_queue
>>>>    29c5:	c5 f9 ef c0          	vpxor  %xmm0,%xmm0,%xmm0
>>>>    29c9:	43 8d 44 24 68       	lea    0x68(%r12,%r12,1),%eax
>>>>    29ce:	48 c7 44 24 20 00 00 	movq   $0x0,0x20(%rsp)
>>>>    29d5:	00 00
>>>>    29d7:	c5 f8 29 44 24 10    	vmovaps %xmm0,0x10(%rsp)
>>>>    29dd:	89 44 24 18          	mov    %eax,0x18(%rsp)
>>>>    29e1:	48 63 83 0c 01 00 00 	movslq 0x10c(%rbx),%rax
>>>>    29e8:	c7 44 24 1c 02 00 00 	movl   $0x2,0x1c(%rsp)
>>>>    29ef:	00
>>>>    29f0:	c5 f8 29 04 24       	vmovaps %xmm0,(%rsp)
>>>>
>>>> The above assembly code is from this modification with:
>>>>    gcc version 9.1.1 20190503 (Red Hat 9.1.1-1) (GCC)
>>>>    Fedora release 30 (Thirty)
>>>>    5.1.11-300.fc30.x86_64
>>>
>>> Do you mean without your patch, the above assembly code (for assgining
>>> offset & size) is missing, after apply this patch, it would show up?
>>>
>> Yes.
>>>>
>>>> Fixes: d0ad8648b1c5 ("app/testpmd: fix RSS flow action
>>>> configuration")
>>>> Cc: stable@dpdk.org
>>>>
>>>> Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
> <snip>
> 
> Reviewed-by: Xiaolong Ye <xiaolong.ye@intel.com>
> Acked-by: Bernard Iremonge <bernard.iremonger@intel.com>
> 

Applied to dpdk-next-net/master, thanks.