From: Qi Zhang <qi.z.zhang@intel.com>
An IP header combined with GTP-U header should be regarded as
inner layer for RSS, otherwise it mess the field vector between
an IPv4 rule and IPv6 rule e.g:
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / gtpu / \
gtp_psc / ipv4 / udp / end actions rss types ipv4-udp end key_len \
0 queues end / end
testpmd> flow create 0 ingress pattern eth / ipv4 / udp / gtpu / \
gtp_psc / ipv6 / udp / end actions rss types ipv6-udp end key_len \
0 queues end / end
Fixes: b7d34ccc47b5 ("net/ice/base: packet encapsulation for RSS")
Cc: stable@dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
Acked-by: Qiming Yang <qiming.yang@intel.com>
---
drivers/net/ice/base/ice_flow.c | 10 ++++++++++
1 file changed, 10 insertions(+)
@@ -3557,6 +3557,11 @@ ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
if (status)
goto exit;
+ /* don't do RSS for GTPU outer */
+ if (segs_cnt == ICE_RSS_OUTER_HEADERS &&
+ segs[segs_cnt - 1].hdrs & ICE_FLOW_SEG_HDR_GTPU)
+ return ICE_SUCCESS;
+
/* Search for a flow profile that has matching headers, hash fields
* and has the input VSI associated to it. If found, no further
* operations required and exit.
@@ -3673,6 +3678,7 @@ ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
ice_acquire_lock(&hw->rss_locks);
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
ICE_RSS_OUTER_HEADERS, symm);
+
if (!status)
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds,
addl_hdrs, ICE_RSS_INNER_HEADERS,
@@ -3712,6 +3718,10 @@ ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
if (status)
goto out;
+ if (segs_cnt == ICE_RSS_OUTER_HEADERS &&
+ segs[segs_cnt - 1].hdrs & ICE_FLOW_SEG_HDR_GTPU)
+ return ICE_SUCCESS;
+
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
vsi_handle,
ICE_FLOW_FIND_PROF_CHK_FLDS);