[PATCH rdma-next 02/29] IB/rxe: Bit mask and lengths declaration for different opcodes

Moni Shoua
2016-06-02T16:57:10Z

header bit mask definitions and header lengths declaration of the
rxe_opcode_info struct and rxe_wr_opcode_info struct.

Signed-off-by: Kamal Heib <kamalh-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Amir Vadai <amirv-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/rxe/rxe_opcode.h | 128 +++++++++++++++++++++++++++++++++
1 file changed, 128 insertions(+)
create mode 100644 drivers/infiniband/hw/rxe/rxe_opcode.h

diff --git a/drivers/infiniband/hw/rxe/rxe_opcode.h b/drivers/infiniband/hw/rxe/rxe_opcode.h
new file mode 100644
index 0000000..0c5f979
--- /dev/null
+++ b/drivers/infiniband/hw/rxe/rxe_opcode.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
+ * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * 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 RXE_OPCODE_H
+#define RXE_OPCODE_H
+
+/*
+ * contains header bit mask definitions and header lengths
+ * declaration of the rxe_opcode_info struct and
+ * rxe_wr_opcode_info struct
+ */
+
+enum rxe_wr_mask {
+ WR_INLINE_MASK = BIT(0),
+ WR_ATOMIC_MASK = BIT(1),
+ WR_SEND_MASK = BIT(2),
+ WR_READ_MASK = BIT(3),
+ WR_WRITE_MASK = BIT(4),
+ WR_LOCAL_MASK = BIT(5),
+
+ WR_READ_OR_WRITE_MASK = WR_READ_MASK | WR_WRITE_MASK,
+ WR_READ_WRITE_OR_SEND_MASK = WR_READ_OR_WRITE_MASK | WR_SEND_MASK,
+ WR_WRITE_OR_SEND_MASK = WR_WRITE_MASK | WR_SEND_MASK,
+ WR_ATOMIC_OR_READ_MASK = WR_ATOMIC_MASK | WR_READ_MASK,
+};
+
+#define WR_MAX_QPT (8)
+
+struct rxe_wr_opcode_info {
+ char *name;
+ enum rxe_wr_mask mask[WR_MAX_QPT];
+};
+
+extern struct rxe_wr_opcode_info rxe_wr_opcode_info[];
+
+enum rxe_hdr_type {
+ RXE_LRH,
+ RXE_GRH,
+ RXE_BTH,
+ RXE_RETH,
+ RXE_AETH,
+ RXE_ATMETH,
+ RXE_ATMACK,
+ RXE_IETH,
+ RXE_RDETH,
+ RXE_DETH,
+ RXE_IMMDT,
+ RXE_PAYLOAD,
+ NUM_HDR_TYPES
+};
+
+enum rxe_hdr_mask {
+ RXE_LRH_MASK = BIT(RXE_LRH),
+ RXE_GRH_MASK = BIT(RXE_GRH),
+ RXE_BTH_MASK = BIT(RXE_BTH),
+ RXE_IMMDT_MASK = BIT(RXE_IMMDT),
+ RXE_RETH_MASK = BIT(RXE_RETH),
+ RXE_AETH_MASK = BIT(RXE_AETH),
+ RXE_ATMETH_MASK = BIT(RXE_ATMETH),
+ RXE_ATMACK_MASK = BIT(RXE_ATMACK),
+ RXE_IETH_MASK = BIT(RXE_IETH),
+ RXE_RDETH_MASK = BIT(RXE_RDETH),
+ RXE_DETH_MASK = BIT(RXE_DETH),
+ RXE_PAYLOAD_MASK = BIT(RXE_PAYLOAD),
+
+ RXE_REQ_MASK = BIT(NUM_HDR_TYPES + 0),
+ RXE_ACK_MASK = BIT(NUM_HDR_TYPES + 1),
+ RXE_SEND_MASK = BIT(NUM_HDR_TYPES + 2),
+ RXE_WRITE_MASK = BIT(NUM_HDR_TYPES + 3),
+ RXE_READ_MASK = BIT(NUM_HDR_TYPES + 4),
+ RXE_ATOMIC_MASK = BIT(NUM_HDR_TYPES + 5),
+
+ RXE_RWR_MASK = BIT(NUM_HDR_TYPES + 6),
+ RXE_COMP_MASK = BIT(NUM_HDR_TYPES + 7),
+
+ RXE_START_MASK = BIT(NUM_HDR_TYPES + 8),
+ RXE_MIDDLE_MASK = BIT(NUM_HDR_TYPES + 9),
+ RXE_END_MASK = BIT(NUM_HDR_TYPES + 10),
+
+ RXE_LOOPBACK_MASK = BIT(NUM_HDR_TYPES + 12),
+
+ RXE_READ_OR_ATOMIC = (RXE_READ_MASK | RXE_ATOMIC_MASK),
+ RXE_WRITE_OR_SEND = (RXE_WRITE_MASK | RXE_SEND_MASK),
+};
+
+#define OPCODE_NONE (-1)
+#define RXE_NUM_OPCODE 256
+
+struct rxe_opcode_info {
+ char *name;
+ enum rxe_hdr_mask mask;
+ int length;
+ int offset[NUM_HDR_TYPES];
+};
+
+extern struct rxe_opcode_info rxe_opcode[RXE_NUM_OPCODE];
+
+#endif /* RXE_OPCODE_H */
--
1.8.3.1