From: Don Hiatt <don.hiatt@xxxxxxxxx>
Add OPA path record support to the Connection Manager.
Signed-off-by: Don Hiatt <don.hiatt@xxxxxxxxx>
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx>
---
drivers/infiniband/core/cm.c | 50 +++++++++++++++++++++++++++++++++++-------
include/rdma/opa_addr.h | 18 +++++++++++++++
2 files changed, 60 insertions(+), 8 deletions(-)
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index b39ee16..885c429 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -1175,6 +1175,11 @@ static void cm_format_req(struct cm_req_msg *req_msg,
{
struct sa_path_rec *pri_path = param->primary_path;
struct sa_path_rec *alt_path = param->alternate_path;
+ bool pri_ext = false;
+
+ if (pri_path->rec_type == SA_PATH_REC_TYPE_OPA)
+ pri_ext = opa_is_extended_lid(pri_path->opa.dlid,
+ pri_path->opa.slid);
cm_format_mad_hdr(&req_msg->hdr, CM_REQ_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_REQ));
@@ -1202,18 +1207,24 @@ static void cm_format_req(struct cm_req_msg *req_msg,
cm_req_set_srq(req_msg, param->srq);
}
+ req_msg->primary_local_gid = pri_path->sgid;
+ req_msg->primary_remote_gid = pri_path->dgid;
+ if (pri_ext) {
+ req_msg->primary_local_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(pri_path->opa.slid));
+ req_msg->primary_remote_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(pri_path->opa.dlid));
+ }
if (pri_path->hop_limit <= 1) {
- req_msg->primary_local_lid =
+ req_msg->primary_local_lid = pri_ext ? 0 :
htons(ntohl(sa_path_get_slid(pri_path)));
- req_msg->primary_remote_lid =
+ req_msg->primary_remote_lid = pri_ext ? 0 :
htons(ntohl(sa_path_get_dlid(pri_path)));
} else {
/* Work-around until there's a way to obtain remote LID info */
req_msg->primary_local_lid = IB_LID_PERMISSIVE;
req_msg->primary_remote_lid = IB_LID_PERMISSIVE;
}
- req_msg->primary_local_gid = pri_path->sgid;
- req_msg->primary_remote_gid = pri_path->dgid;
cm_req_set_primary_flow_label(req_msg, pri_path->flow_label);
cm_req_set_primary_packet_rate(req_msg, pri_path->rate);
req_msg->primary_traffic_class = pri_path->traffic_class;
@@ -1225,17 +1236,29 @@ static void cm_format_req(struct cm_req_msg *req_msg,
pri_path->packet_life_time));
if (alt_path) {
+ bool alt_ext = false;
+
+ if (alt_path->rec_type == SA_PATH_REC_TYPE_OPA)
+ alt_ext = opa_is_extended_lid(alt_path->opa.dlid,
+ alt_path->opa.slid);
+
+ req_msg->alt_local_gid = alt_path->sgid;
+ req_msg->alt_remote_gid = alt_path->dgid;
+ if (alt_ext) {
+ req_msg->alt_local_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(alt_path->opa.slid));
+ req_msg->alt_remote_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(alt_path->opa.dlid));
+ }
if (alt_path->hop_limit <= 1) {
- req_msg->alt_local_lid =
+ req_msg->alt_local_lid = alt_ext ? 0 :
htons(ntohl(sa_path_get_slid(alt_path)));
- req_msg->alt_remote_lid =
+ req_msg->alt_remote_lid = alt_ext ? 0 :
htons(ntohl(sa_path_get_dlid(alt_path)));
} else {
req_msg->alt_local_lid = IB_LID_PERMISSIVE;
req_msg->alt_remote_lid = IB_LID_PERMISSIVE;
}
- req_msg->alt_local_gid = alt_path->sgid;
- req_msg->alt_remote_gid = alt_path->dgid;
cm_req_set_alt_flow_label(req_msg,
alt_path->flow_label);
cm_req_set_alt_packet_rate(req_msg, alt_path->rate);
@@ -2843,6 +2866,11 @@ static void cm_format_lap(struct cm_lap_msg *lap_msg,
const void *private_data,
u8 private_data_len)
{
+ bool alt_ext = false;
+
+ if (alternate_path->rec_type == SA_PATH_REC_TYPE_OPA)
+ alt_ext = opa_is_extended_lid(alternate_path->opa.dlid,
+ alternate_path->opa.slid);
cm_format_mad_hdr(&lap_msg->hdr, CM_LAP_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_LAP));
lap_msg->local_comm_id = cm_id_priv->id.local_id;
@@ -2856,6 +2884,12 @@ static void cm_format_lap(struct cm_lap_msg *lap_msg,
htons(ntohl(sa_path_get_dlid(alternate_path)));
lap_msg->alt_local_gid = alternate_path->sgid;
lap_msg->alt_remote_gid = alternate_path->dgid;
+ if (alt_ext) {
+ lap_msg->alt_local_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(alternate_path->opa.slid));
+ lap_msg->alt_remote_gid.global.interface_id
+ = OPA_MAKE_ID(be32_to_cpu(alternate_path->opa.dlid));
+ }
cm_lap_set_flow_label(lap_msg, alternate_path->flow_label);
cm_lap_set_traffic_class(lap_msg, alternate_path->traffic_class);
lap_msg->alt_hop_limit = alternate_path->hop_limit;
diff --git a/include/rdma/opa_addr.h b/include/rdma/opa_addr.h
index 46d0567..9b5e642 100644
--- a/include/rdma/opa_addr.h
+++ b/include/rdma/opa_addr.h
@@ -77,4 +77,22 @@ static inline u32 opa_get_lid_from_gid(union ib_gid *gid)
{
return be64_to_cpu(gid->global.interface_id) & 0xFFFFFFFF;
}
+
+/**
+ * opa_is_extended_lid: Returns true if dlid or slid are
+ * extended.
+ *
+ * @dlid: The DLID
+ * @slid: The SLID
+ */
+static inline bool opa_is_extended_lid(u32 dlid, u32 slid)
+{
+ if ((be32_to_cpu(dlid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE)) ||
+ (be32_to_cpu(slid) >=
+ be16_to_cpu(IB_MULTICAST_LID_BASE)))
+ return true;
+ else
+ return false;
+}
#endif /* OPA_ADDR_H */
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