net/bnxt: support inner IP header for GRE tunnel flows

This change allows adding IP header matches for GRE flows that
does not specify outer IP header in the flow match pattern.

Signed-off-by: Kishore Padmanabha <kishore.padmanabha@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Mike Baucom <michael.baucom@broadcom.com>
Reviewed-by: Randy Schacher <stuart.schacher@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>

diff --git a/doc/guides/rel_notes/release_21_11.rst b/doc/guides/rel_notes/release_21_11.rst
index 02413f5..565b9a9 100644 (file)
--- a/doc/guides/rel_notes/release_21_11.rst
+++ b/doc/guides/rel_notes/release_21_11.rst
@@ -156,6 +156,7 @@ New Features
   * Added NAT support for dest IP and port combination.
   * Added support for socket redirection.
   * Added wildcard match support for ingress flows.
+  * Added support for inner IP header for GRE tunnel flows.
 
 * **Updated Cisco enic driver.**
 

diff --git a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c
index 40da953..605c292 100644 (file)
--- a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c
+++ b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c
@@ -1119,7 +1119,8 @@ ulp_rte_ipv4_hdr_handler(const struct rte_flow_item *item,
 
        /* Set the ipv4 header bitmap and computed l3 header bitmaps */
        if (ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV4) ||
-           ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV6)) {
+           ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV6) ||
+           ULP_COMP_FLD_IDX_RD(params, BNXT_ULP_CF_IDX_L3_TUN)) {
                ULP_BITMAP_SET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_I_IPV4);
                ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_I_L3, 1);
                inner_flag = 1;
@@ -1245,7 +1246,8 @@ ulp_rte_ipv6_hdr_handler(const struct rte_flow_item *item,
 
        /* Set the ipv6 header bitmap and computed l3 header bitmaps */
        if (ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV4) ||
-           ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV6)) {
+           ULP_BITMAP_ISSET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_O_IPV6) ||
+           ULP_COMP_FLD_IDX_RD(params, BNXT_ULP_CF_IDX_L3_TUN)) {
                ULP_BITMAP_SET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_I_IPV6);
                ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_I_L3, 1);
                inner_flag = 1;
@@ -2127,7 +2129,6 @@ ulp_rte_vxlan_decap_act_handler(const struct rte_flow_action *action_item
                       BNXT_ULP_ACT_BIT_VXLAN_DECAP);
        /* Update computational field with tunnel decap info */
        ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_L3_TUN_DECAP, 1);
-       ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_L3_TUN, 1);
        return BNXT_TF_RC_SUCCESS;
 }
 

diff --git a/drivers/net/bnxt/tf_ulp/ulp_template_struct.h b/drivers/net/bnxt/tf_ulp/ulp_template_struct.h
index d3bfb8c..7d1bc06 100644 (file)
--- a/drivers/net/bnxt/tf_ulp/ulp_template_struct.h
+++ b/drivers/net/bnxt/tf_ulp/ulp_template_struct.h
@@ -27,7 +27,7 @@
 #define BNXT_ULP_PROTO_HDR_UDP_NUM     4
 #define BNXT_ULP_PROTO_HDR_TCP_NUM     9
 #define BNXT_ULP_PROTO_HDR_VXLAN_NUM   4
-#define BNXT_ULP_PROTO_HDR_GRE_NUM     6
+#define BNXT_ULP_PROTO_HDR_GRE_NUM     2
 #define BNXT_ULP_PROTO_HDR_ICMP_NUM    5
 #define BNXT_ULP_PROTO_HDR_MAX         128
 #define BNXT_ULP_PROTO_HDR_ENCAP_MAX   64