[dpdk-dev] [PATCH] net/ixgbe: fix IPsec Rx with SSE on

[Shahaf Shuler]

Tuesday, October 31, 2017 7:16 PM, Ferruh Yigit:
> On 10/31/2017 8:47 AM, Ananyev, Konstantin wrote:
> >
> >
> >> -----Original Message-----
> >> From: Nicolau, Radu
> >> Sent: Friday, October 27, 2017 2:25 PM
> >> To: dev at dpdk.org
> >> Cc: Ananyev, Konstantin <konstantin.ananyev at intel.com>; Nicolau, Radu
> >> <radu.nicolau at intel.com>
> >> Subject: [PATCH] net/ixgbe: fix IPsec Rx with SSE on
> >>
> >> Fixes: 9a0752f498d2 ("net/ixgbe: enable inline IPsec") And small
> >> performance improvement
> >>
> >> Signed-off-by: Radu Nicolau <radu.nicolau at intel.com>
> 
> > Acked-by: Konstantin Ananyev <konstantin.ananyev at intel.com>
> 
> Applied to dpdk-next-net/master, thanks.

It looks this commit breaks the compilation with GCC on redhat 7.3.

Server details:
4.13.0-rc4+ #1 SMP Wed Aug 9 09:18:48 IDT 2017 x86_64 x86_64 x86_64 GNU/Linux
gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-11)


Compilation log:

Configuration done using x86_64-native-linuxapp-gcc
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c: In function ‘desc_to_olflags_v_ipsec’:
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:140:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
rearm = _mm_set_epi32(((uint32_t *)rx_pkts[0]->rearm_data)[2],
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:141:10: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[1]->rearm_data)[2],
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:142:10: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[2]->rearm_data)[2],
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:143:10: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[3]->rearm_data)[2]);
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:154:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[0]->rearm_data)[2] = _mm_extract_epi32(rearm, 3);
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:155:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[1]->rearm_data)[2] = _mm_extract_epi32(rearm, 2);
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:156:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[2]->rearm_data)[2] = _mm_extract_epi32(rearm, 1);
^
/work/dpdk.org/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c:157:2: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
((uint32_t *)rx_pkts[3]->rearm_data)[2] = _mm_extract_epi32(rearm, 0);
^
cc1: all warnings being treated as errors
make[4]: *** [ixgbe_rxtx_vec_sse.o] Error 1
make[3]: *** [ixgbe] Error 2
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [net] Error 2
make[1]: *** [drivers] Error 2
make: *** [all] Error 2