net/ice: fix default RSS hash for IP fragments

Previously, hash value is calculated by src IP address, dst IP address
and IP ID. However, default RSS field only needs src and dst IP address.

This patch removes IP ID from default RSS field for IP fragment packets
to improve default RSS configuration.

Fixes: 4027fffe86f4 ("net/ice: support default RSS for IP fragment packet")
Cc: stable@dpdk.org
Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 0683296..8d62b84 100644 (file)
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2981,7 +2981,7 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
 
        if (rss_hf & ETH_RSS_FRAG_IPV4) {
                cfg.addl_hdrs = ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV_FRAG;
-               cfg.hash_flds = ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_ID);
+               cfg.hash_flds = ICE_FLOW_HASH_IPV4;
                ret = ice_add_rss_cfg_wrap(pf, vsi->idx, &cfg);
                if (ret)
                        PMD_DRV_LOG(ERR, "%s IPV4_FRAG rss flow fail %d",
@@ -2990,7 +2990,7 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
 
        if (rss_hf & ETH_RSS_FRAG_IPV6) {
                cfg.addl_hdrs = ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_IPV_FRAG;
-               cfg.hash_flds = ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_ID);
+               cfg.hash_flds = ICE_FLOW_HASH_IPV6;
                ret = ice_add_rss_cfg_wrap(pf, vsi->idx, &cfg);
                if (ret)
                        PMD_DRV_LOG(ERR, "%s IPV6_FRAG rss flow fail %d",