[dpdk-stable] [PATCH] net/sfc: cut non VLAN ID bits from TCI

[Luca Boccassi]

On Wed, 2018-07-11 at 10:46 +0100, Andrew Rybchenko wrote:
> TCI may contain PCP or DEI bits. Matching of these bits is not
> supported, but the bits still may be set in specification value and
> not covered by mask. So, these bits should be ignored.
> 
> Fixes: 894080975e1e ("net/sfc: support VLAN in flow API filters")
> Cc: stable at dpdk.org
> 
> Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
> Reviewed-by: Roman Zhukov <roman.zhukov at oktetlabs.ru>
> ---
>  drivers/net/sfc/sfc_flow.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/net/sfc/sfc_flow.c b/drivers/net/sfc/sfc_flow.c
> index 5613d59a9..18387415e 100644
> --- a/drivers/net/sfc/sfc_flow.c
> +++ b/drivers/net/sfc/sfc_flow.c
> @@ -371,7 +371,8 @@ sfc_flow_parse_vlan(const struct rte_flow_item
> *item,
>  	 * the outer tag and the next matches the inner tag.
>  	 */
>  	if (mask->tci == supp_mask.tci) {
> -		vid = rte_bswap16(spec->tci);
> +		/* Apply mask to keep VID only */
> +		vid = rte_bswap16(spec->tci & mask->tci);
>  
>  		if (!(efx_spec->efs_match_flags &
>  		      EFX_FILTER_MATCH_OUTER_VID)) {

Hi Andrew,

For which stable release branch is this patch intended? Has it (or an
equivalent) been merged into mainline?

-- 
Kind regards,
Luca Boccassi