IB/core: Initialize UD header structure with IP and UDP headers

[linux-2.6-microblaze.git] / include / rdma / ib_pack.h

diff --git a/include/rdma/ib_pack.h b/include/rdma/ib_pack.h
index e99d8f9..a193081 100644 (file)
--- a/include/rdma/ib_pack.h
+++ b/include/rdma/ib_pack.h
@@ -41,6 +41,8 @@ enum {
        IB_ETH_BYTES  = 14,
        IB_VLAN_BYTES = 4,
        IB_GRH_BYTES  = 40,
+       IB_IP4_BYTES  = 20,
+       IB_UDP_BYTES  = 8,
        IB_BTH_BYTES  = 12,
        IB_DETH_BYTES = 8
 };
@@ -223,6 +225,27 @@ struct ib_unpacked_eth {
        __be16  type;
 };
 
+struct ib_unpacked_ip4 {
+       u8      ver;
+       u8      hdr_len;
+       u8      tos;
+       __be16  tot_len;
+       __be16  id;
+       __be16  frag_off;
+       u8      ttl;
+       u8      protocol;
+       __be16  check;
+       __be32  saddr;
+       __be32  daddr;
+};
+
+struct ib_unpacked_udp {
+       __be16  sport;
+       __be16  dport;
+       __be16  length;
+       __be16  csum;
+};
+
 struct ib_unpacked_vlan {
        __be16  tag;
        __be16  type;
@@ -237,6 +260,10 @@ struct ib_ud_header {
        struct ib_unpacked_vlan vlan;
        int                     grh_present;
        struct ib_unpacked_grh  grh;
+       int                     ipv4_present;
+       struct ib_unpacked_ip4  ip4;
+       int                     udp_present;
+       struct ib_unpacked_udp  udp;
        struct ib_unpacked_bth  bth;
        struct ib_unpacked_deth deth;
        int                     immediate_present;
@@ -253,13 +280,17 @@ void ib_unpack(const struct ib_field        *desc,
               void                         *buf,
               void                         *structure);
 
-void ib_ud_header_init(int                 payload_bytes,
-                      int                  lrh_present,
-                      int                  eth_present,
-                      int                  vlan_present,
-                      int                  grh_present,
-                      int                  immediate_present,
-                      struct ib_ud_header *header);
+__be16 ib_ud_ip4_csum(struct ib_ud_header *header);
+
+int ib_ud_header_init(int                  payload_bytes,
+                     int                   lrh_present,
+                     int                   eth_present,
+                     int                   vlan_present,
+                     int                   grh_present,
+                     int                   ip_version,
+                     int                   udp_present,
+                     int                   immediate_present,
+                     struct ib_ud_header *header);
 
 int ib_ud_header_pack(struct ib_ud_header *header,
                      void                *buf);