ionic: Add ionic provider

Introduce a provider for AMD pensando ionic devices to user applications.

Co-developed-by: Andrew Boyer <[email protected]>
Signed-off-by: Andrew Boyer <[email protected]>
Co-developed-by: Allen Hubbe <[email protected]>
Signed-off-by: Allen Hubbe <[email protected]>
Signed-off-by: Abhijit Gangurde <[email protected]>

Author: abhijitG-xlnx

CMakeLists.txt

@@ -731,6 +731,7 @@ add_subdirectory(providers/efa/man)
 add_subdirectory(providers/erdma)
 add_subdirectory(providers/hns)
 add_subdirectory(providers/hns/man)
+add_subdirectory(providers/ionic)
 add_subdirectory(providers/irdma)
 add_subdirectory(providers/mana)
 add_subdirectory(providers/mana/man)

MAINTAINERS

@@ -77,6 +77,13 @@ M:	Chengchang Tang <[email protected]>
 S:	Supported
 F:	providers/hns/
 
+IONIC USERSPACE PROVIDER (for ionic_rdma.ko)
+M:	Allen Hubbe <[email protected]>
+M:	Andrew Boyer <[email protected]>
+M:	Abhijit Gangurde <[email protected]>
+S:	Supported
+F:	providers/ionic/
+
 IRDMA USERSPACE PROVIDER (for i40iw.ko and irdma.ko)
 M:	Sindhu Devale <[email protected]>
 M:	Tatyana Nikolova <[email protected]>

README.md

@@ -20,6 +20,7 @@ is included:
  - iw_cxgb4.ko
  - hfi1.ko
  - hns-roce-hw-v2.ko
+ - ionic_rdma.ko
  - irdma.ko
  - ib_qib.ko
  - mana_ib.ko

debian/control

@@ -88,6 +88,7 @@ Description: User space provider drivers for libibverbs
   - erdma: Alibaba Elastic RDMA (iWarp) Adapter
   - hfi1verbs: Intel Omni-Path HFI
   - hns: HiSilicon Hip06 SoC
+  - ionic: AMD Pensando Distributed Services Card (DSC) RDMA/RoCE Support
   - ipathverbs: QLogic InfiniPath HCAs
   - irdma: Intel Ethernet Connection RDMA
   - mana: Microsoft Azure Network Adapter

debian/copyright

@@ -177,6 +177,10 @@ Copyright: 2006-2010, QLogic Corp.
            2013, Intel Corporation
 License: BSD-MIT or GPL-2
 
+Files: providers/ionic/*
+Copyright: 2018-2025, Advanced Micro Devices, Inc.
+License: BSD-MIT or GPL-2
+
 Files: providers/irdma/*
 Copyright: 2015-2023, Intel Corporation.
 License: BSD-MIT or GPL-2

debian/ibverbs-providers.install

@@ -2,6 +2,7 @@ etc/libibverbs.d/
 usr/lib/*/libefa.so.*
 usr/lib/*/libhns.so.*
 usr/lib/*/libibverbs/lib*-rdmav*.so
+usr/lib/*/libionic.so.*
 usr/lib/*/libmana.so.*
 usr/lib/*/libmlx4.so.*
 usr/lib/*/libmlx5.so.*

debian/libibverbs-dev.install

@@ -20,6 +20,8 @@ usr/lib/*/libhns.a
 usr/lib/*/libhns.so
 usr/lib/*/libibverbs*.so
 usr/lib/*/libibverbs.a
+usr/lib/*/libionic.a
+usr/lib/*/libionic.so*
 usr/lib/*/libmana.a
 usr/lib/*/libmana.so
 usr/lib/*/libmlx4.a

libibverbs/verbs.h

@@ -2298,7 +2298,7 @@ struct ibv_device **ibv_get_device_list(int *num_devices);
  */
 #ifdef RDMA_STATIC_PROVIDERS
 #define _RDMA_STATIC_PREFIX_(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11,     \
-			     _12, _13, _14, _15, _16, _17, _18, _19, ...)      \
+			     _12, _13, _14, _15, _16, _17, _18, _19, _20, ...) \
 	&verbs_provider_##_1, &verbs_provider_##_2, &verbs_provider_##_3,      \
 		&verbs_provider_##_4, &verbs_provider_##_5,                    \
 		&verbs_provider_##_6, &verbs_provider_##_7,                    \
@@ -2307,11 +2307,12 @@ struct ibv_device **ibv_get_device_list(int *num_devices);
 		&verbs_provider_##_12, &verbs_provider_##_13,                  \
 		&verbs_provider_##_14, &verbs_provider_##_15,                  \
 		&verbs_provider_##_16, &verbs_provider_##_17,                  \
-		&verbs_provider_##_18, &verbs_provider_##_19
+		&verbs_provider_##_18, &verbs_provider_##_19,                  \
+		&verbs_provider_##_20
 #define _RDMA_STATIC_PREFIX(arg)                                               \
 	_RDMA_STATIC_PREFIX_(arg, none, none, none, none, none, none, none,    \
 			     none, none, none, none, none, none, none, none,   \
-			     none, none, none)
+			     none, none, none, none)
 
 struct verbs_devices_ops;
 extern const struct verbs_device_ops verbs_provider_bnxt_re;
@@ -2331,6 +2332,7 @@ extern const struct verbs_device_ops verbs_provider_qedr;
 extern const struct verbs_device_ops verbs_provider_rxe;
 extern const struct verbs_device_ops verbs_provider_siw;
 extern const struct verbs_device_ops verbs_provider_vmw_pvrdma;
+extern const struct verbs_device_ops verbs_provider_ionic;
 extern const struct verbs_device_ops verbs_provider_all;
 extern const struct verbs_device_ops verbs_provider_none;
 void ibv_static_providers(void *unused, ...);

providers/ionic/CMakeLists.txt

@@ -0,0 +1,12 @@
+rdma_shared_provider(ionic libionic.map
+	1 1.0.${PACKAGE_VERSION}
+	ionic.c
+	ionic_verbs.c
+	ionic_memory.c
+	ionic_queue.c
+	ionic_dv.c
+)
+
+publish_headers(infiniband
+	ionic_dv.h
+)

providers/ionic/ionic-abi.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2018-2025 Advanced Micro Devices, Inc.  All rights reserved.
+ */
+
+#ifndef __IONIC_ABI_H__
+#define __IONIC_ABI_H__
+
+#include <infiniband/kern-abi.h>
+#include <infiniband/verbs.h>
+#include <rdma/ionic-abi.h>
+#include <kernel-abi/ionic-abi.h>
+
+#include "ionic_fw_types.h"
+
+DECLARE_DRV_CMD(uionic_ctx, IB_USER_VERBS_CMD_GET_CONTEXT,
+		ionic_ctx_req, ionic_ctx_resp);
+DECLARE_DRV_CMD(uionic_ah, IB_USER_VERBS_CMD_CREATE_AH,
+		empty, ionic_ah_resp);
+DECLARE_DRV_CMD(uionic_cq, IB_USER_VERBS_CMD_CREATE_CQ,
+		ionic_cq_req, ionic_cq_resp);
+DECLARE_DRV_CMD(uionic_qp, IB_USER_VERBS_EX_CMD_CREATE_QP,
+		ionic_qp_req, ionic_qp_resp);
+
+#endif /* __IONIC_ABI_H__ */