RDS: Add TCP transport to RDS
This code allows RDS to be tunneled over a TCP connection.
RDMA operations are disabled when using TCP transport,
but this frees RDS from the IB/RDMA stack dependency, and allows
it to be used with standard Ethernet adapters, or in a VM.
Signed-off-by: Andy Grover <andy.grover@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/rds.h b/include/linux/rds.h
index d91dc91..89d46e1a 100644
--- a/include/linux/rds.h
+++ b/include/linux/rds.h
@@ -147,6 +147,18 @@
u_int64_t inum;
} __attribute__((packed));
+struct rds_info_tcp_socket {
+ __be32 local_addr;
+ __be16 local_port;
+ __be32 peer_addr;
+ __be16 peer_port;
+ u_int64_t hdr_rem;
+ u_int64_t data_rem;
+ u_int32_t last_sent_nxt;
+ u_int32_t last_expected_una;
+ u_int32_t last_seen_una;
+} __attribute__((packed));
+
#define RDS_IB_GID_LEN 16
struct rds_info_rdma_connection {
__be32 src_addr;