nfp: add set tcp and udp header action flower offload

Previously we did not have offloading support for set TCP/UDP actions. This
patch enables TC flower offload of set TCP/UDP sport and dport actions.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
index 4394e4f..1194c47 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -348,10 +348,39 @@ nfp_fl_set_ip6(const struct tc_action *action, int idx, u32 off,
 }
 
 static int
+nfp_fl_set_tport(const struct tc_action *action, int idx, u32 off,
+                struct nfp_fl_set_tport *set_tport, int opcode)
+{
+       u32 exact, mask;
+       u16 tmp_set_op;
+
+       if (off)
+               return -EOPNOTSUPP;
+
+       mask = ~tcf_pedit_mask(action, idx);
+       exact = tcf_pedit_val(action, idx);
+
+       if (exact & ~mask)
+               return -EOPNOTSUPP;
+
+       nfp_fl_set_helper32(exact, mask, set_tport->tp_port_val,
+                           set_tport->tp_port_mask);
+
+       set_tport->reserved = cpu_to_be16(0);
+       tmp_set_op = FIELD_PREP(NFP_FL_ACT_LEN_LW,
+                               sizeof(*set_tport) >> NFP_FL_LW_SIZ);
+       tmp_set_op |= FIELD_PREP(NFP_FL_ACT_JMP_ID, opcode);
+       set_tport->a_op = cpu_to_be16(tmp_set_op);
+
+       return 0;
+}
+
+static int
 nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
 {
        struct nfp_fl_set_ipv6_addr set_ip6_dst, set_ip6_src;
        struct nfp_fl_set_ip4_addrs set_ip_addr;
+       struct nfp_fl_set_tport set_tport;
        struct nfp_fl_set_eth set_eth;
        enum pedit_header_type htype;
        int idx, nkeys, err;
@@ -361,6 +390,7 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
        memset(&set_ip6_dst, 0, sizeof(set_ip6_dst));
        memset(&set_ip6_src, 0, sizeof(set_ip6_src));
        memset(&set_ip_addr, 0, sizeof(set_ip_addr));
+       memset(&set_tport, 0, sizeof(set_tport));
        memset(&set_eth, 0, sizeof(set_eth));
        nkeys = tcf_pedit_nkeys(action);
 
@@ -383,6 +413,14 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
                        err = nfp_fl_set_ip6(action, idx, offset, &set_ip6_dst,
                                             &set_ip6_src);
                        break;
+               case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP:
+                       err = nfp_fl_set_tport(action, idx, offset, &set_tport,
+                                              NFP_FL_ACTION_OPCODE_SET_TCP);
+                       break;
+               case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP:
+                       err = nfp_fl_set_tport(action, idx, offset, &set_tport,
+                                              NFP_FL_ACTION_OPCODE_SET_UDP);
+                       break;
                default:
                        return -EOPNOTSUPP;
                }
@@ -418,6 +456,10 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
                act_size = sizeof(set_ip6_src);
                memcpy(nfp_action, &set_ip6_src, act_size);
                *a_len += act_size;
+       } else if (set_tport.a_op) {
+               act_size = sizeof(set_tport);
+               memcpy(nfp_action, &set_tport, act_size);
+               *a_len += act_size;
        }
 
        return 0;

diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
index 527914e..f7b7242 100644 (file)
--- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
+++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h
@@ -81,6 +81,8 @@
 #define NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS    9
 #define NFP_FL_ACTION_OPCODE_SET_IPV6_SRC      11
 #define NFP_FL_ACTION_OPCODE_SET_IPV6_DST      12
+#define NFP_FL_ACTION_OPCODE_SET_UDP           14
+#define NFP_FL_ACTION_OPCODE_SET_TCP           15
 #define NFP_FL_ACTION_OPCODE_PRE_TUNNEL                17
 #define NFP_FL_ACTION_OPCODE_NUM               32
 
@@ -136,6 +138,13 @@ struct nfp_fl_set_ipv6_addr {
        } ipv6[4];
 };
 
+struct nfp_fl_set_tport {
+       __be16 a_op;
+       __be16 reserved;
+       u8 tp_port_mask[4];
+       u8 tp_port_val[4];
+};
+
 struct nfp_fl_output {
        __be16 a_op;
        __be16 flags;