Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / infiniband / hw / usnic / usnic_abi.h

diff --git a/kernel/drivers/infiniband/hw/usnic/usnic_abi.h b/kernel/drivers/infiniband/hw/usnic/usnic_abi.h
new file mode 100644 (file)
index 0000000..04a6622
--- /dev/null
+++ b/kernel/drivers/infiniband/hw/usnic/usnic_abi.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+
+#ifndef USNIC_ABI_H
+#define USNIC_ABI_H
+
+/* ABI between userspace and kernel */
+#define USNIC_UVERBS_ABI_VERSION       4
+
+#define USNIC_QP_GRP_MAX_WQS           8
+#define USNIC_QP_GRP_MAX_RQS           8
+#define USNIC_QP_GRP_MAX_CQS           16
+
+enum usnic_transport_type {
+       USNIC_TRANSPORT_UNKNOWN         = 0,
+       USNIC_TRANSPORT_ROCE_CUSTOM     = 1,
+       USNIC_TRANSPORT_IPV4_UDP        = 2,
+       USNIC_TRANSPORT_MAX             = 3,
+};
+
+struct usnic_transport_spec {
+       enum usnic_transport_type       trans_type;
+       union {
+               struct {
+                       uint16_t        port_num;
+               } usnic_roce;
+               struct {
+                       uint32_t        sock_fd;
+               } udp;
+       };
+};
+
+struct usnic_ib_create_qp_cmd {
+       struct usnic_transport_spec     spec;
+};
+
+/*TODO: Future - usnic_modify_qp needs to pass in generic filters */
+struct usnic_ib_create_qp_resp {
+       u32                             vfid;
+       u32                             qp_grp_id;
+       u64                             bar_bus_addr;
+       u32                             bar_len;
+/*
+ * WQ, RQ, CQ are explicity specified bc exposing a generic resources inteface
+ * expands the scope of ABI to many files.
+ */
+       u32                             wq_cnt;
+       u32                             rq_cnt;
+       u32                             cq_cnt;
+       u32                             wq_idx[USNIC_QP_GRP_MAX_WQS];
+       u32                             rq_idx[USNIC_QP_GRP_MAX_RQS];
+       u32                             cq_idx[USNIC_QP_GRP_MAX_CQS];
+       u32                             transport;
+       u32                             reserved[9];
+};
+
+#endif /* USNIC_ABI_H */