iavf: Support for modifying SCTP RSS flow hashing

Provide the ability to enable SCTP RSS hashing by ethtool.

It gives users option of generating RSS hash based on the SCTP source
and destination ports numbers, IPv4 or IPv6 source and destination
addresses.

Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

diff --git a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c
index a8e03aaccc6b283d0409a11b72b30f067dc27d7f..6edbf134b73fce0aafa0b8a314039dd111cb3f3a 100644 (file)
--- a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.c
@@ -73,6 +73,23 @@ iavf_fill_adv_rss_udp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
                VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, UDP, DST_PORT);
 }
 
+/**
+ * iavf_fill_adv_rss_sctp_hdr - fill the SCTP RSS protocol header
+ * @hdr: the virtchnl message protocol header data structure
+ * @hash_flds: the RSS configuration protocol hash fields
+ */
+static void
+iavf_fill_adv_rss_sctp_hdr(struct virtchnl_proto_hdr *hdr, u64 hash_flds)
+{
+       VIRTCHNL_SET_PROTO_HDR_TYPE(hdr, SCTP);
+
+       if (hash_flds & IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT)
+               VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, SCTP, SRC_PORT);
+
+       if (hash_flds & IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT)
+               VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr, SCTP, DST_PORT);
+}
+
 /**
  * iavf_fill_adv_rss_cfg_msg - fill the RSS configuration into virtchnl message
  * @rss_cfg: the virtchnl message to be filled with RSS configuration setting
@@ -112,6 +129,9 @@ iavf_fill_adv_rss_cfg_msg(struct virtchnl_rss_cfg *rss_cfg,
        case IAVF_ADV_RSS_FLOW_SEG_HDR_UDP:
                iavf_fill_adv_rss_udp_hdr(hdr, hash_flds);
                break;
+       case IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP:
+               iavf_fill_adv_rss_sctp_hdr(hdr, hash_flds);
+               break;
        default:
                return -EINVAL;
        }
@@ -160,6 +180,8 @@ iavf_print_adv_rss_cfg(struct iavf_adapter *adapter, struct iavf_adv_rss *rss,
                proto = "TCP";
        else if (packet_hdrs & IAVF_ADV_RSS_FLOW_SEG_HDR_UDP)
                proto = "UDP";
+       else if (packet_hdrs & IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP)
+               proto = "SCTP";
        else
                return;
 
@@ -178,10 +200,12 @@ iavf_print_adv_rss_cfg(struct iavf_adapter *adapter, struct iavf_adv_rss *rss,
                         IAVF_ADV_RSS_HASH_FLD_IPV6_DA))
                strcat(hash_opt, "IP DA,");
        if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT |
-                        IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT))
+                        IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT |
+                        IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT))
                strcat(hash_opt, "src port,");
        if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT |
-                        IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT))
+                        IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT |
+                        IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT))
                strcat(hash_opt, "dst port,");
 
        if (!action)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h
index 4681f5e8321d0d7d7a75ae21885843dc1d6c7cae..4d3be11af7aab71daf98881cc454bf3a253c728e 100644 (file)
--- a/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h
+++ b/drivers/net/ethernet/intel/iavf/iavf_adv_rss.h
@@ -21,6 +21,7 @@ enum iavf_adv_rss_flow_seg_hdr {
        IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6  = 0x00000002,
        IAVF_ADV_RSS_FLOW_SEG_HDR_TCP   = 0x00000004,
        IAVF_ADV_RSS_FLOW_SEG_HDR_UDP   = 0x00000008,
+       IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP  = 0x00000010,
 };
 
 #define IAVF_ADV_RSS_FLOW_SEG_HDR_L3           \
@@ -29,7 +30,8 @@ enum iavf_adv_rss_flow_seg_hdr {
 
 #define IAVF_ADV_RSS_FLOW_SEG_HDR_L4           \
        (IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |        \
-        IAVF_ADV_RSS_FLOW_SEG_HDR_UDP)
+        IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |        \
+        IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP)
 
 enum iavf_adv_rss_flow_field {
        /* L3 */
@@ -42,6 +44,8 @@ enum iavf_adv_rss_flow_field {
        IAVF_ADV_RSS_FLOW_FIELD_IDX_TCP_DST_PORT,
        IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_SRC_PORT,
        IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_DST_PORT,
+       IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_SRC_PORT,
+       IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_DST_PORT,
 
        /* The total number of enums must not exceed 64 */
        IAVF_ADV_RSS_FLOW_FIELD_IDX_MAX
@@ -64,6 +68,10 @@ enum iavf_adv_rss_flow_field {
        BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_SRC_PORT)
 #define IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT     \
        BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_UDP_DST_PORT)
+#define IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT    \
+       BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_SRC_PORT)
+#define IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT    \
+       BIT_ULL(IAVF_ADV_RSS_FLOW_FIELD_IDX_SCTP_DST_PORT)
 
 /* bookkeeping of advanced RSS configuration */
 struct iavf_adv_rss {

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index e6169a336694ab6e468963c88c91e682242619e8..3d904bc6ee763829e890f7b6828b0766f0cb2373 100644 (file)
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -1438,6 +1438,10 @@ static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd)
                hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
                        IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
                break;
+       case SCTP_V4_FLOW:
+               hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
+                       IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4;
+               break;
        case TCP_V6_FLOW:
                hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP |
                        IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
@@ -1446,6 +1450,10 @@ static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd)
                hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP |
                        IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
                break;
+       case SCTP_V6_FLOW:
+               hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP |
+                       IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6;
+               break;
        default:
                break;
        }
@@ -1468,6 +1476,7 @@ static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd)
                switch (cmd->flow_type) {
                case TCP_V4_FLOW:
                case UDP_V4_FLOW:
+               case SCTP_V4_FLOW:
                        if (cmd->data & RXH_IP_SRC)
                                hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_SA;
                        if (cmd->data & RXH_IP_DST)
@@ -1475,6 +1484,7 @@ static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd)
                        break;
                case TCP_V6_FLOW:
                case UDP_V6_FLOW:
+               case SCTP_V6_FLOW:
                        if (cmd->data & RXH_IP_SRC)
                                hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_SA;
                        if (cmd->data & RXH_IP_DST)
@@ -1501,6 +1511,13 @@ static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd)
                        if (cmd->data & RXH_L4_B_2_3)
                                hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT;
                        break;
+               case SCTP_V4_FLOW:
+               case SCTP_V6_FLOW:
+                       if (cmd->data & RXH_L4_B_0_1)
+                               hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT;
+                       if (cmd->data & RXH_L4_B_2_3)
+                               hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT;
+                       break;
                default:
                        break;
                }
@@ -1635,11 +1652,13 @@ iavf_get_adv_rss_hash_opt(struct iavf_adapter *adapter,
                cmd->data |= (u64)RXH_IP_DST;
 
        if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT |
-                        IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT))
+                        IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT |
+                        IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT))
                cmd->data |= (u64)RXH_L4_B_0_1;
 
        if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT |
-                        IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT))
+                        IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT |
+                        IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT))
                cmd->data |= (u64)RXH_L4_B_2_3;
 
        return 0;