diff --git a/0070-rdma-core-uos-support-sw.patch b/0070-rdma-core-uos-support-sw.patch
new file mode 100644
index 0000000000000000000000000000000000000000..7b4084ad08bbc49101355b8ff9170742d67126f7
--- /dev/null
+++ b/0070-rdma-core-uos-support-sw.patch
@@ -0,0 +1,43 @@
+From 4ef53f85dfb7d155f187a97e6efbd45a0510c958 Mon Sep 17 00:00:00 2001
+From: zhangshaoning <zhangshaoning@uniontech.com>
+Date: Thu, 6 Mar 2025 09:43:18 +0800
+Subject: [PATCH] adapt to sw_64
+
+---
+ util/udma_barrier.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff --git a/util/udma_barrier.h b/util/udma_barrier.h
+index 3793d2f..411023d 100644
+--- a/util/udma_barrier.h
++++ b/util/udma_barrier.h
+@@ -92,6 +92,8 @@
+ #define udma_to_device_barrier() asm volatile("mf" ::: "memory")
+ #elif defined(__sparc_v9__)
+ #define udma_to_device_barrier() asm volatile("membar #StoreStore" ::: "memory")
++#elif defined(__sw_64__)
++#define udma_to_device_barrier() asm volatile("memb" ::: "memory");
+ #elif defined(__aarch64__)
+ #define udma_to_device_barrier() asm volatile("dsb st" ::: "memory");
+ #elif defined(__sparc__) || defined(__s390x__)
+@@ -130,6 +132,8 @@
+ #define udma_from_device_barrier() asm volatile("mf" ::: "memory")
+ #elif defined(__sparc_v9__)
+ #define udma_from_device_barrier() asm volatile("membar #LoadLoad" ::: "memory")
++#elif defined(__sw_64__)
++#define udma_from_device_barrier() asm volatile("memb" ::: "memory");
+ #elif defined(__aarch64__)
+ #define udma_from_device_barrier() asm volatile("dsb ld" ::: "memory");
+ #elif defined(__sparc__) || defined(__s390x__)
+@@ -200,6 +204,8 @@
+ #define mmio_flush_writes() asm volatile("fwb" ::: "memory")
+ #elif defined(__sparc_v9__)
+ #define mmio_flush_writes() asm volatile("membar #StoreStore" ::: "memory")
++#elif defined(__sw_64__)
++#define mmio_flush_writes() asm volatile("memb" ::: "memory");
+ #elif defined(__aarch64__)
+ #define mmio_flush_writes() asm volatile("dsb st" ::: "memory");
+ #elif defined(__sparc__)
+-- 
+2.18.2
+
diff --git a/rdma-core.spec b/rdma-core.spec
index a0a157ef35444976546a51433344b7155769bf2c..3ba47df2baa36b4773e05e2d4f727b63420906d7 100644
--- a/rdma-core.spec
+++ b/rdma-core.spec
@@ -1,6 +1,6 @@
 Name:           rdma-core
 Version:        50.0
-Release:        33
+Release:        34
 Summary:        RDMA core userspace libraries and daemons
 License:        GPL-2.0-only OR BSD-2-Clause AND BSD-3-Clause
 Url:            https://github.com/linux-rdma/rdma-core
@@ -75,6 +75,7 @@ patch66: 0066-libhns-Add-check-for-input-param-of-hnsdv_query_devi.patch
 patch67: 0067-libhns-Adapt-UD-inline-data-size-for-UCX.patch
 patch68: 0068-libhns-Clean-up-DCA-magic-number-warnings.patch
 patch69: 0069-libhns-Clean-up-space-tab-blank-line-warnings.patch
+patch70: 0070-rdma-core-uos-support-sw.patch
 
 BuildRequires:  binutils cmake >= 2.8.11 gcc libudev-devel pkgconfig pkgconfig(libnl-3.0)
 BuildRequires:  pkgconfig(libnl-route-3.0) systemd systemd-devel
@@ -656,6 +657,12 @@ fi
 %doc %{_docdir}/%{name}-%{version}/70-persistent-ipoib.rules
 
 %changelog
+* Wed Oct 15 2025 zhangfeilong <zhangfeilong@uniontech.com> - 50.0-34
+- Type: feature
+- ID: NA
+- SUG: NA
+- DESC: Add sw64 support.
+
 * Wed Aug 27 2025 Donghua Huang <huangdonghua3@h-partners.com> - 50.0-33
 - Type: bugfix
 - ID: NA