qed: Implement iWARP initialization, teardown and qp operations

This patch adds iWARP support for flows that have common code
between RoCE and iWARP, such as initialization, teardown and
qp setup verbs: create, destroy, modify, query.
It introduces the iWARP specific files qed_iwarp.[ch] and
iwarp_common.h

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 54 insertions, 0 deletions

diff --git a/include/linux/qed/iwarp_common.h b/include/linux/qed/iwarp_common.h
new file mode 100644
index 000000000000..b8b3e1cfae90
--- /dev/null
+++ b/include/linux/qed/iwarp_common.h
@@ -0,0 +1,53 @@
+/* QLogic qed NIC Driver
+ * Copyright (c) 2015-2017  QLogic Corporation
+ *
+ * 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 __IWARP_COMMON__
+#define __IWARP_COMMON__
+#include <linux/qed/rdma_common.h>
+/************************/
+/* IWARP FW CONSTANTS	*/
+/************************/
+
+#define IWARP_ACTIVE_MODE 0
+#define IWARP_PASSIVE_MODE 1
+
+#define IWARP_SHARED_QUEUE_PAGE_SIZE		(0x8000)
+#define IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET   (0x4000)
+#define IWARP_SHARED_QUEUE_PAGE_RQ_PBL_MAX_SIZE (0x1000)
+#define IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET   (0x5000)
+#define IWARP_SHARED_QUEUE_PAGE_SQ_PBL_MAX_SIZE (0x3000)
+
+#define IWARP_REQ_MAX_INLINE_DATA_SIZE          (128)
+#define IWARP_REQ_MAX_SINGLE_SQ_WQE_SIZE        (176)
+
+#define IWARP_MAX_QPS                           (64 * 1024)
+
+#endif /* __IWARP_COMMON__ */
diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h
index ff9be01b5f53..5b4bb09a3354 100644
--- a/include/linux/qed/qed_rdma_if.h
+++ b/include/linux/qed/qed_rdma_if.h
@@ -491,6 +491,7 @@ struct qed_roce_ll2_packet {
 
 enum qed_rdma_type {
 	QED_RDMA_TYPE_ROCE,
+	QED_RDMA_TYPE_IWARP
 };
 
 struct qed_dev_rdma_info {