net/ice: remove support for IP fragment default RSS

To support independent IP fragment default RSS, considerable
additional work need to be done, so we decide to remove this
feature to avoid some unexpected behavior we have observed,
meanwhile user always can use rte_flow to create RSS for IP
fragment packet explicitly.

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 76dcabf..e24a3b6 100644 (file)
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -2964,9 +2964,7 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
        ETH_RSS_NONFRAG_IPV4_TCP | \
        ETH_RSS_NONFRAG_IPV6_TCP | \
        ETH_RSS_NONFRAG_IPV4_SCTP | \
-       ETH_RSS_NONFRAG_IPV6_SCTP | \
-       ETH_RSS_FRAG_IPV4 | \
-       ETH_RSS_FRAG_IPV6)
+       ETH_RSS_NONFRAG_IPV6_SCTP)
 
        ret = ice_rem_vsi_rss_cfg(hw, vsi->idx);
        if (ret)
@@ -3121,24 +3119,6 @@ ice_rss_hash_set(struct ice_pf *pf, uint64_t rss_hf)
                                    __func__, ret);
        }
 
-       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;
-               ret = ice_add_rss_cfg_wrap(pf, vsi->idx, &cfg);
-               if (ret)
-                       PMD_DRV_LOG(ERR, "%s IPV4_FRAG rss flow fail %d",
-                                   __func__, ret);
-       }
-
-       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;
-               ret = ice_add_rss_cfg_wrap(pf, vsi->idx, &cfg);
-               if (ret)
-                       PMD_DRV_LOG(ERR, "%s IPV6_FRAG rss flow fail %d",
-                                   __func__, ret);
-       }
-
        pf->rss_hf = rss_hf & ICE_RSS_HF_ALL;
 }