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 06832965842f14be90babd7c76333e64bb2b293f..8d62b84805e2b0b68e24c5c045ff75231ebc8d31 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",