microsoft · arsdragonfly · May 26, 2026 · May 27, 2026 · May 27, 2026
@@ -46,7 +46,7 @@
 Summary:	 Infiniband HCA Driver
 Name:		 %{_name}-signed
 Version:	 25.07
-Release:	 8%{release_suffix}%{?dist}
+Release:	 9%{release_suffix}%{?dist}
 License:	 GPLv2
 Url:		 http://www.mellanox.com/
 Group:		 System Environment/Base
@@ -237,6 +237,10 @@ fi
 %license %{_datadir}/licenses/%{_name}/copyright
 
 %changelog
+* Tue May 26 2026 Zheyu Shen <zheyushen@microsoft.com> - 25.07-9_6.12.57.1.6
+- Bump release to repackage signed modules against the GPL-export rebuild
+  of mlnx-ofa_kernel-hwe-25.07-9.
+
 * Fri Apr 10 2026 Mykhailo Bykhovtsev <mbykhovtsev@microsoft.com> - 25.07-8_6.12.57.1.6
 - Tweak specs to use dynamic versioning for kernel
 

@@ -43,7 +43,7 @@
 Summary:	 Infiniband HCA Driver
 Name:		 %{_name}-signed
 Version:	 25.07
-Release:	 2%{release_suffix}%{?dist}
+Release:	 3%{release_suffix}%{?dist}
 License:	 GPLv2
 Url:		 http://www.mellanox.com/
 Group:		 System Environment/Base
@@ -198,6 +198,10 @@ fi
 %license %{_datadir}/licenses/%{_name}/copyright
 
 %changelog
+* Tue May 26 2026 Zheyu Shen <zheyushen@microsoft.com> - 25.07-3
+- Bump release to repackage signed modules against the GPL-export rebuild
+  of mlnx-ofa_kernel-25.07-3.
+
 * Fri Apr 10 2026 Mykhailo Bykhovtsev <mbykhovtsev@microsoft.com> - 25.07-2
 - Tweak specs to use dynamic versioning for kernel versions.
 

@@ -0,0 +1,72 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zheyu Shen <zheyushen@microsoft.com>
+Date: Tue, 26 May 2026 00:00:00 +0000
+Subject: [PATCH] peer_mem: export IB peer memory API as GPL-only symbols
+
+The IB peer-memory API in drivers/infiniband/core/peer_mem.c was
+historically exported with EXPORT_SYMBOL. That dates back to a time when
+the consumer was the NVIDIA closed-source GPU driver, which could not
+link against EXPORT_SYMBOL_GPL symbols.
+
+Today the consumers are GPL kernel modules (AMDGPU, NVIDIA open-source
+driver). Exposing the peer-memory client registration API as
+EXPORT_SYMBOL_GPL more accurately reflects the GPL licensing of
+mlnx-ofa_kernel and matches the kernel's modern expectations around
+in-kernel API surfaces.
+
+In addition, switching to EXPORT_SYMBOL_GPL allows out-of-tree drivers
+(AMDGPU, NVIDIA open-source GPU driver) to discover the peer-memory
+client API via module symbol resolution at runtime instead of having
+to hard-link against the mlnx-ofa_kernel build, which is required to
+break the diamond build-time dependency between an OOT GPU driver and
+multiple OOT NIC drivers that all consume the same API, which is the
+situation we are facing with AMD GPU (MI300X works with Mellanox while
+MI455X comes with Vulcano NIC, and we would like the same kmod to be
+able to work with both hardware).
+
+Signed-off-by: Zheyu Shen <zheyushen@microsoft.com>
+---
+ drivers/infiniband/core/peer_mem.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/infiniband/core/peer_mem.c b/drivers/infiniband/core/peer_mem.c
+--- a/drivers/infiniband/core/peer_mem.c
++++ b/drivers/infiniband/core/peer_mem.c
+@@ -86,7 +86,7 @@ void *ib_register_peer_memory_client(const struct peer_memory_client *peer_clien
+ 	mutex_unlock(&peer_memory_mutex);
+ 	return ib_peer_client;
+ }
+-EXPORT_SYMBOL(ib_register_peer_memory_client);
++EXPORT_SYMBOL_GPL(ib_register_peer_memory_client);
+
+ void ib_unregister_peer_memory_client(void *reg_handle)
+ {
+@@ -107,7 +107,7 @@ void ib_unregister_peer_memory_client(void *reg_handle)
+
+ 	kobject_put(&ib_peer_client->kobj);
+ }
+-EXPORT_SYMBOL(ib_unregister_peer_memory_client);
++EXPORT_SYMBOL_GPL(ib_unregister_peer_memory_client);
+
+ static struct ib_peer_memory_client *
+ ib_get_peer_client(unsigned long addr, size_t size,
+@@ -317,7 +317,7 @@ void ib_umem_activate_invalidation_notifier(struct ib_umem *umem,
+
+ 	/* At this point func can be called asynchronously */
+ }
+-EXPORT_SYMBOL(ib_umem_activate_invalidation_notifier);
++EXPORT_SYMBOL_GPL(ib_umem_activate_invalidation_notifier);
+
+ /*
+  * Caller has blocked DMA and will no longer be able to handle invalidate
+@@ -358,7 +358,7 @@ void ib_umem_stop_invalidation_notifier(struct ib_umem *umem)
+ 		ib_unmap_peer_client(umem_p, cur_state, UMEM_PEER_UNMAPPED);
+
+ }
+-EXPORT_SYMBOL(ib_umem_stop_invalidation_notifier);
++EXPORT_SYMBOL_GPL(ib_umem_stop_invalidation_notifier);
+
+ static void fix_peer_sgls(struct ib_umem_peer *umem_p,
+ 			  unsigned long peer_page_size)
+-- 
+2.43.0
@@ -102,7 +102,7 @@
 Summary:	 Infiniband HCA Driver
 Name:		 mlnx-ofa_kernel-hwe
 Version:	 25.07
-Release:	 8%{release_suffix}%{?dist}
+Release:	 9%{release_suffix}%{?dist}
 License:	 GPLv2
 Url:		 http://www.mellanox.com/
 Group:		 System Environment/Base
@@ -111,6 +111,14 @@ Group:		 System Environment/Base
 # https://linux.mellanox.com/public/repo/doca/3.1.0/SOURCES/mlnx_ofed/MLNX_OFED_SRC-25.07-0.9.7.0.tgz
 Source0:         %{_distro_sources_url}/mlnx-ofa_kernel-%{_version}.tgz
 
+# Re-export the IB peer-memory client API as GPL-only symbols so that
+# GPL out-of-tree drivers (amdgpu, NVIDIA open-source GPU driver, ...)
+# can consume them at runtime via symbol resolution instead of needing
+# a build-time dependency on mlnx-ofa_kernel-hwe. This breaks the diamond
+# build-time dependency between an OOT GPU driver and multiple OOT NIC
+# drivers that all consume the same peermem API.
+Patch0:          0001-peer_mem-export-symbols-as-GPL.patch
+
 BuildRoot:	 /var/tmp/%{name}-%{version}-build
 Vendor:          Microsoft Corporation
 Distribution:    Azure Linux
@@ -283,6 +291,7 @@ The driver sources are located at: http://www.mellanox.com/downloads/ofed/
 
 %prep
 %setup -n mlnx-ofa_kernel-%{_version}
+%patch 0 -p1
 
 set -- *
 mkdir source
@@ -449,6 +458,11 @@ update-alternatives --remove \
 %{_prefix}/src/ofa_kernel/%{_arch}/[0-9]*
 
 %changelog
+* Tue May 26 2026 Zheyu Shen <zheyushen@microsoft.com> - 25.07-9_6.12.57.1.6
+- Re-export IB peer-memory client API as EXPORT_SYMBOL_GPL to allow OOT
+  GPU drivers (amdgpu, NVIDIA open-source) to resolve peermem symbols at
+  module load time, removing the build-time dependency on mlnx-ofa_kernel-hwe.
+
 * Fri Apr 10 2026 Mykhailo Bykhovtsev <mbykhovtsev@microsoft.com> - 25.07-8_6.12.57.1.6
 - Tweak specs to use dynamic versioning for kernel
 

@@ -0,0 +1,72 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zheyu Shen <zheyushen@microsoft.com>
+Date: Tue, 26 May 2026 00:00:00 +0000
+Subject: [PATCH] peer_mem: export IB peer memory API as GPL-only symbols
+
+The IB peer-memory API in drivers/infiniband/core/peer_mem.c was
+historically exported with EXPORT_SYMBOL. That dates back to a time when
+the consumer was the NVIDIA closed-source GPU driver, which could not
+link against EXPORT_SYMBOL_GPL symbols.
+
+Today the consumers are GPL kernel modules (AMDGPU, NVIDIA open-source
+driver). Exposing the peer-memory client registration API as
+EXPORT_SYMBOL_GPL more accurately reflects the GPL licensing of
+mlnx-ofa_kernel and matches the kernel's modern expectations around
+in-kernel API surfaces.
+
+In addition, switching to EXPORT_SYMBOL_GPL allows out-of-tree drivers
+(AMDGPU, NVIDIA open-source GPU driver) to discover the peer-memory
+client API via module symbol resolution at runtime instead of having
+to hard-link against the mlnx-ofa_kernel build, which is required to
+break the diamond build-time dependency between an OOT GPU driver and
+multiple OOT NIC drivers that all consume the same API, which is the
+situation we are facing with AMD GPU (MI300X works with Mellanox while
+MI455X comes with Vulcano NIC, and we would like the same kmod to be
+able to work with both hardware).
+
+Signed-off-by: Zheyu Shen <zheyushen@microsoft.com>
+---
+ drivers/infiniband/core/peer_mem.c | 8 ++++----
+ 1 file changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/infiniband/core/peer_mem.c b/drivers/infiniband/core/peer_mem.c
+--- a/drivers/infiniband/core/peer_mem.c
++++ b/drivers/infiniband/core/peer_mem.c
+@@ -86,7 +86,7 @@ void *ib_register_peer_memory_client(const struct peer_memory_client *peer_clien
+ 	mutex_unlock(&peer_memory_mutex);
+ 	return ib_peer_client;
+ }
+-EXPORT_SYMBOL(ib_register_peer_memory_client);
++EXPORT_SYMBOL_GPL(ib_register_peer_memory_client);
+
+ void ib_unregister_peer_memory_client(void *reg_handle)
+ {
+@@ -107,7 +107,7 @@ void ib_unregister_peer_memory_client(void *reg_handle)
+
+ 	kobject_put(&ib_peer_client->kobj);
+ }
+-EXPORT_SYMBOL(ib_unregister_peer_memory_client);
++EXPORT_SYMBOL_GPL(ib_unregister_peer_memory_client);
+
+ static struct ib_peer_memory_client *
+ ib_get_peer_client(unsigned long addr, size_t size,
+@@ -317,7 +317,7 @@ void ib_umem_activate_invalidation_notifier(struct ib_umem *umem,
+
+ 	/* At this point func can be called asynchronously */
+ }
+-EXPORT_SYMBOL(ib_umem_activate_invalidation_notifier);
++EXPORT_SYMBOL_GPL(ib_umem_activate_invalidation_notifier);
+
+ /*
+  * Caller has blocked DMA and will no longer be able to handle invalidate
+@@ -358,7 +358,7 @@ void ib_umem_stop_invalidation_notifier(struct ib_umem *umem)
+ 		ib_unmap_peer_client(umem_p, cur_state, UMEM_PEER_UNMAPPED);
+
+ }
+-EXPORT_SYMBOL(ib_umem_stop_invalidation_notifier);
++EXPORT_SYMBOL_GPL(ib_umem_stop_invalidation_notifier);
+
+ static void fix_peer_sgls(struct ib_umem_peer *umem_p,
+ 			  unsigned long peer_page_size)
+-- 
+2.43.0
@@ -106,7 +106,7 @@
 Summary:	 Infiniband HCA Driver
 Name:		 mlnx-ofa_kernel
 Version:	 25.07
-Release:	 2%{release_suffix}%{?dist}
+Release:	 3%{release_suffix}%{?dist}
 License:	 GPLv2
 Url:		 http://www.mellanox.com/
 Group:		 System Environment/Base
@@ -115,6 +115,14 @@ Group:		 System Environment/Base
 # https://linux.mellanox.com/public/repo/doca/3.1.0/SOURCES/mlnx_ofed/MLNX_OFED_SRC-25.07-0.9.7.0.tgz
 Source0:         %{_distro_sources_url}/%{_name}-%{version}.tgz
 
+# Re-export the IB peer-memory client API as GPL-only symbols so that
+# GPL out-of-tree drivers (amdgpu, NVIDIA open-source GPU driver, ...)
+# can consume them at runtime via symbol resolution instead of needing
+# a build-time dependency on mlnx-ofa_kernel. This breaks the diamond
+# build-time dependency between an OOT GPU driver and multiple OOT NIC
+# drivers that all consume the same peermem API.
+Patch0:          0001-peer_mem-export-symbols-as-GPL.patch
+
 BuildRoot:	 /var/tmp/%{name}-%{version}-build
 Vendor:          Microsoft Corporation
 Distribution:    Azure Linux
@@ -302,6 +310,7 @@ drivers against it.
 
 %prep
 %setup -n %{_name}-%{version}
+%patch 0 -p1
 set -- *
 mkdir source
 mv "$@" source/
@@ -765,6 +774,11 @@ update-alternatives --remove \
 %{_prefix}/src/mlnx-ofa_kernel-%version
 
 %changelog
+* Tue May 26 2026 Zheyu Shen <zheyushen@microsoft.com> - 25.07-3
+- Re-export IB peer-memory client API as EXPORT_SYMBOL_GPL to allow OOT
+  GPU drivers (amdgpu, NVIDIA open-source) to resolve peermem symbols at
+  module load time, removing the build-time dependency on mlnx-ofa_kernel.
+
 * Fri Apr 10 2026 Mykhailo Bykhovtsev <mbykhovtsev@microsoft.com> - 25.07-2
 - Tweak specs to use dynamic versioning for kernel.