RDMA: iWARP Core Changes.

Modifications to the existing rdma header files, core files, drivers,
and ulp files to support iWARP, including:
 - Hook iWARP CM into the build system and use it in rdma_cm.
 - Convert enum ib_node_type to enum rdma_node_type, which includes
   the possibility of RDMA_NODE_RNIC, and update everything for this.

Signed-off-by: Tom Tucker <tom@opengridcomputing.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

2 files changed, 37 insertions, 5 deletions

diff --git a/include/rdma/ib_addr.h b/include/rdma/ib_addr.h
index 0ff67398928d..81b62307621d 100644
--- a/include/rdma/ib_addr.h
+++ b/include/rdma/ib_addr.h
@@ -40,7 +40,7 @@ struct rdma_dev_addr {
         unsigned char src_dev_addr[MAX_ADDR_LEN];
         unsigned char dst_dev_addr[MAX_ADDR_LEN];
         unsigned char broadcast[MAX_ADDR_LEN];
-        enum ib_node_type dev_type;
+        enum rdma_node_type dev_type;
 };
 
 /**
@@ -72,6 +72,9 @@ int rdma_resolve_ip(struct sockaddr *src_addr, struct sockaddr *dst_addr,
 
 void rdma_addr_cancel(struct rdma_dev_addr *addr);
 
+int rdma_copy_addr(struct rdma_dev_addr *dev_addr, struct net_device *dev,
+              const unsigned char *dst_dev_addr);
+
 static inline int ip_addr_size(struct sockaddr *addr)
 {
         return addr->sa_family == AF_INET6 ?
@@ -113,4 +116,16 @@ static inline void ib_addr_set_dgid(struct rdma_dev_addr *dev_addr,
         memcpy(dev_addr->dst_dev_addr + 4, gid, sizeof *gid);
 }
 
+static inline void iw_addr_get_sgid(struct rdma_dev_addr *dev_addr,
+                                    union ib_gid *gid)
+{
+        memcpy(gid, dev_addr->src_dev_addr, sizeof *gid);
+}
+
+static inline void iw_addr_get_dgid(struct rdma_dev_addr *dev_addr,
+                                    union ib_gid *gid)
+{
+        memcpy(gid, dev_addr->dst_dev_addr, sizeof *gid);
+}
+
 #endif /* IB_ADDR_H */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 61eed3996117..8eacc3510993 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -56,12 +56,22 @@ union ib_gid {
         } global;
 };
 
-enum ib_node_type {
-        IB_NODE_CA      = 1,
-        IB_NODE_SWITCH,
-        IB_NODE_ROUTER
+enum rdma_node_type {
+        /* IB values map to NodeInfo:NodeType. */
+        RDMA_NODE_IB_CA         = 1,
+        RDMA_NODE_IB_SWITCH,
+        RDMA_NODE_IB_ROUTER,
+        RDMA_NODE_RNIC
 };
 
+enum rdma_transport_type {
+        RDMA_TRANSPORT_IB,
+        RDMA_TRANSPORT_IWARP
+};
+
+enum rdma_transport_type
+rdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__;
+
 enum ib_device_cap_flags {
         IB_DEVICE_RESIZE_MAX_WR         = 1,
         IB_DEVICE_BAD_PKEY_CNTR         = (1<<1),
@@ -78,6 +88,9 @@ enum ib_device_cap_flags {
         IB_DEVICE_RC_RNR_NAK_GEN        = (1<<12),
         IB_DEVICE_SRQ_RESIZE            = (1<<13),
         IB_DEVICE_N_NOTIFY_CQ           = (1<<14),
+        IB_DEVICE_ZERO_STAG             = (1<<15),
+        IB_DEVICE_SEND_W_INV            = (1<<16),
+        IB_DEVICE_MEM_WINDOW            = (1<<17)
 };
 
 enum ib_atomic_cap {
@@ -835,6 +848,8 @@ struct ib_cache {
         u8                     *lmc_cache;
 };
 
+struct iw_cm_verbs;
+
 struct ib_device {
         struct device                *dma_device;
 
@@ -851,6 +866,8 @@ struct ib_device {
 
         u32                           flags;
 
+        struct iw_cm_verbs           *iwcm;
+
         int                        (*query_device)(struct ib_device *device,
                                                    struct ib_device_attr *device_attr);
         int                        (*query_port)(struct ib_device *device,