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net/sfc: cut non VLAN ID bits from TCI

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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: 894080975e ("net/sfc: support VLAN in flow API filters")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Roman Zhukov <roman.zhukov@oktetlabs.ru>
This commit is contained in:
Andrew Rybchenko 2018-06-29 16:23:31 +01:00 committed by Ferruh Yigit
parent 0109a56e73
commit 8028142107
1 changed files with 2 additions and 1 deletions
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3
drivers/net/sfc/sfc_flow.c
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@ -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)) {