net/iavf: support IPv4/L4 checksum RSS offload

Add supports for RSS_IPV4_CHKSUM & RSS_L4_CHKSUM RSS offload types
in RSS flow.

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst
index d7e0e44..219071f 100644 (file)
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -76,6 +76,7 @@ New Features
 * **Updated Intel iavf driver.**
 
   * Added Intel iavf support on Windows.
+  * Added IPv4 and L4 (TCP/UDP/SCTP) checksum hash support in RSS flow.
 
 * **Updated Intel ice driver.**
 

diff --git a/drivers/net/iavf/iavf_hash.c b/drivers/net/iavf/iavf_hash.c
index 589d7f6..e84f58d 100644 (file)
--- a/drivers/net/iavf/iavf_hash.c
+++ b/drivers/net/iavf/iavf_hash.c
@@ -342,23 +342,30 @@ struct virtchnl_proto_hdrs ipv4_ecpri_tmplt = {
 
 /* IPv4 outer */
 #define IAVF_RSS_TYPE_OUTER_IPV4       (ETH_RSS_ETH | ETH_RSS_IPV4 | \
-                                        ETH_RSS_FRAG_IPV4)
+                                        ETH_RSS_FRAG_IPV4 | \
+                                        ETH_RSS_IPV4_CHKSUM)
 #define IAVF_RSS_TYPE_OUTER_IPV4_UDP   (IAVF_RSS_TYPE_OUTER_IPV4 | \
-                                        ETH_RSS_NONFRAG_IPV4_UDP)
+                                        ETH_RSS_NONFRAG_IPV4_UDP | \
+                                        ETH_RSS_L4_CHKSUM)
 #define IAVF_RSS_TYPE_OUTER_IPV4_TCP   (IAVF_RSS_TYPE_OUTER_IPV4 | \
-                                        ETH_RSS_NONFRAG_IPV4_TCP)
+                                        ETH_RSS_NONFRAG_IPV4_TCP | \
+                                        ETH_RSS_L4_CHKSUM)
 #define IAVF_RSS_TYPE_OUTER_IPV4_SCTP  (IAVF_RSS_TYPE_OUTER_IPV4 | \
-                                        ETH_RSS_NONFRAG_IPV4_SCTP)
+                                        ETH_RSS_NONFRAG_IPV4_SCTP | \
+                                        ETH_RSS_L4_CHKSUM)
 /* IPv6 outer */
 #define IAVF_RSS_TYPE_OUTER_IPV6       (ETH_RSS_ETH | ETH_RSS_IPV6)
 #define IAVF_RSS_TYPE_OUTER_IPV6_FRAG  (IAVF_RSS_TYPE_OUTER_IPV6 | \
                                         ETH_RSS_FRAG_IPV6)
 #define IAVF_RSS_TYPE_OUTER_IPV6_UDP   (IAVF_RSS_TYPE_OUTER_IPV6 | \
-                                        ETH_RSS_NONFRAG_IPV6_UDP)
+                                        ETH_RSS_NONFRAG_IPV6_UDP | \
+                                        ETH_RSS_L4_CHKSUM)
 #define IAVF_RSS_TYPE_OUTER_IPV6_TCP   (IAVF_RSS_TYPE_OUTER_IPV6 | \
-                                        ETH_RSS_NONFRAG_IPV6_TCP)
+                                        ETH_RSS_NONFRAG_IPV6_TCP | \
+                                        ETH_RSS_L4_CHKSUM)
 #define IAVF_RSS_TYPE_OUTER_IPV6_SCTP  (IAVF_RSS_TYPE_OUTER_IPV6 | \
-                                        ETH_RSS_NONFRAG_IPV6_SCTP)
+                                        ETH_RSS_NONFRAG_IPV6_SCTP | \
+                                        ETH_RSS_L4_CHKSUM)
 /* VLAN IPV4 */
 #define IAVF_RSS_TYPE_VLAN_IPV4                (IAVF_RSS_TYPE_OUTER_IPV4 | \
                                         ETH_RSS_S_VLAN | ETH_RSS_C_VLAN)
@@ -800,6 +807,10 @@ iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
                        } else {
                                hdr->field_selector = 0;
                        }
+
+                       if (rss_type & ETH_RSS_IPV4_CHKSUM)
+                               REFINE_PROTO_FLD(ADD, IPV4_CHKSUM);
+
                        break;
                case VIRTCHNL_PROTO_HDR_IPV4_FRAG:
                        if (rss_type &
@@ -812,6 +823,10 @@ iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
                        } else {
                                hdr->field_selector = 0;
                        }
+
+                       if (rss_type & ETH_RSS_IPV4_CHKSUM)
+                               REFINE_PROTO_FLD(ADD, IPV4_CHKSUM);
+
                        break;
                case VIRTCHNL_PROTO_HDR_IPV6:
                        if (rss_type &
@@ -863,6 +878,9 @@ iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
                        } else {
                                hdr->field_selector = 0;
                        }
+
+                       if (rss_type & ETH_RSS_L4_CHKSUM)
+                               REFINE_PROTO_FLD(ADD, UDP_CHKSUM);
                        break;
                case VIRTCHNL_PROTO_HDR_TCP:
                        if (rss_type &
@@ -879,6 +897,9 @@ iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
                        } else {
                                hdr->field_selector = 0;
                        }
+
+                       if (rss_type & ETH_RSS_L4_CHKSUM)
+                               REFINE_PROTO_FLD(ADD, TCP_CHKSUM);
                        break;
                case VIRTCHNL_PROTO_HDR_SCTP:
                        if (rss_type &
@@ -895,6 +916,9 @@ iavf_refine_proto_hdrs_l234(struct virtchnl_proto_hdrs *proto_hdrs,
                        } else {
                                hdr->field_selector = 0;
                        }
+
+                       if (rss_type & ETH_RSS_L4_CHKSUM)
+                               REFINE_PROTO_FLD(ADD, SCTP_CHKSUM);
                        break;
                case VIRTCHNL_PROTO_HDR_S_VLAN:
                        if (!(rss_type & ETH_RSS_S_VLAN))