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-rw-r--r--include/rdma/ib_addr.h1
-rw-r--r--include/rdma/ib_verbs.h44
2 files changed, 45 insertions, 0 deletions
diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index 11528591d0d7..c799caacf353 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -83,6 +83,7 @@ struct rdma_dev_addr {
int bound_dev_if;
enum rdma_transport_type transport;
struct net *net;
+ enum rdma_network_type network;
};
/**
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ab05ef695d63..368fc22f30f1 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -51,6 +51,8 @@
#include <linux/socket.h>
#include <linux/irq_poll.h>
#include <uapi/linux/if_ether.h>
+#include <net/ipv6.h>
+#include <net/ip.h>
#include <linux/atomic.h>
#include <linux/mmu_notifier.h>
@@ -109,6 +111,35 @@ enum rdma_protocol_type {
__attribute_const__ enum rdma_transport_type
rdma_node_get_transport(enum rdma_node_type node_type);
+enum rdma_network_type {
+ RDMA_NETWORK_IB,
+ RDMA_NETWORK_ROCE_V1 = RDMA_NETWORK_IB,
+ RDMA_NETWORK_IPV4,
+ RDMA_NETWORK_IPV6
+};
+
+static inline enum ib_gid_type ib_network_to_gid_type(enum rdma_network_type network_type)
+{
+ if (network_type == RDMA_NETWORK_IPV4 ||
+ network_type == RDMA_NETWORK_IPV6)
+ return IB_GID_TYPE_ROCE_UDP_ENCAP;
+
+ /* IB_GID_TYPE_IB same as RDMA_NETWORK_ROCE_V1 */
+ return IB_GID_TYPE_IB;
+}
+
+static inline enum rdma_network_type ib_gid_to_network_type(enum ib_gid_type gid_type,
+ union ib_gid *gid)
+{
+ if (gid_type == IB_GID_TYPE_IB)
+ return RDMA_NETWORK_IB;
+
+ if (ipv6_addr_v4mapped((struct in6_addr *)gid))
+ return RDMA_NETWORK_IPV4;
+ else
+ return RDMA_NETWORK_IPV6;
+}
+
enum rdma_link_layer {
IB_LINK_LAYER_UNSPECIFIED,
IB_LINK_LAYER_INFINIBAND,
@@ -537,6 +568,17 @@ struct ib_grh {
union ib_gid dgid;
};
+union rdma_network_hdr {
+ struct ib_grh ibgrh;
+ struct {
+ /* The IB spec states that if it's IPv4, the header
+ * is located in the last 20 bytes of the header.
+ */
+ u8 reserved[20];
+ struct iphdr roce4grh;
+ };
+};
+
enum {
IB_MULTICAST_QPN = 0xffffff
};
@@ -773,6 +815,7 @@ enum ib_wc_flags {
IB_WC_IP_CSUM_OK = (1<<3),
IB_WC_WITH_SMAC = (1<<4),
IB_WC_WITH_VLAN = (1<<5),
+ IB_WC_WITH_NETWORK_HDR_TYPE = (1<<6),
};
struct ib_wc {
@@ -798,6 +841,7 @@ struct ib_wc {
u8 port_num; /* valid only for DR SMPs on switches */
u8 smac[ETH_ALEN];
u16 vlan_id;
+ u8 network_hdr_type;
};
enum ib_cq_notify_flags {
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