!91 添加了对龙架构的支持

From: @sevever 
Reviewed-by: @swf504 
Signed-off-by: @swf504

0041-barrier-LOONGARCH-memory-barriers.patch

@@ -0,0 +1,41 @@
+From 2d686707df37b8752f31684db16b689637ba141d Mon Sep 17 00:00:00 2001
+From: Xue Liu <liuxue@loongson.cn>
+Date: Thu, 1 Dec 2022 18:37:21 +0800
+Subject: [PATCH 1/3] barrier: LOONGARCH memory barriers
+
+Implement memory barrier for LOONGARCH platforms.
+
+Change-Id: I44f5e63e6eb3f8bf98e965a22fb86f94e727061d
+Signed-off-by: Xue Liu <liuxue@loongson.cn>
+Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16082
+Community-CI: Mellanox Build Bot
+Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
+Reviewed-by: Jim Harris <james.r.harris@intel.com>
+Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
+---
+ include/spdk/barrier.h | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/include/spdk/barrier.h b/include/spdk/barrier.h
+index acae360..1ee7240 100644
+--- a/include/spdk/barrier.h
++++ b/include/spdk/barrier.h
+@@ -97,6 +97,15 @@ extern "C" {
+ #define _spdk_smp_mb()	__asm volatile("lock addl $0, -128(%%esp); " ::: "memory");
+ #endif
+ 
++#elif defined(__loongarch__)
++
++#define _spdk_rmb()	__asm volatile("dbar 0" ::: "memory")
++#define _spdk_wmb()	__asm volatile("dbar 0" ::: "memory")
++#define _spdk_mb()	__asm volatile("dbar 0" ::: "memory")
++#define _spdk_smp_rmb()	__asm volatile("dbar 0" ::: "memory")
++#define _spdk_smp_wmb()	__asm volatile("dbar 0" ::: "memory")
++#define _spdk_smp_mb()	__asm volatile("dbar 0" ::: "memory")
++
+ #else
+ 
+ #define _spdk_rmb()
+-- 
+2.20.1
+

0042-nvme-pcie-add-memory-barrier-for-LOONGARCH.patch

@@ -0,0 +1,34 @@
+From e9a94122b8704411b79157b25c4d07580246be6c Mon Sep 17 00:00:00 2001
+From: Xue Liu <liuxue@loongson.cn>
+Date: Thu, 1 Dec 2022 18:38:57 +0800
+Subject: [PATCH 2/3] nvme/pcie: add memory barrier for LOONGARCH
+
+Add memory barrier for LOONGARCH in nvme_pcie_qpair_process_completions.
+
+Signed-off-by: Xue Liu <liuxue@loongson.cn>
+Change-Id: Icc992ef612a00dd18ff33f70ab8f54e8c5d5c5b7
+Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16083
+Community-CI: Mellanox Build Bot
+Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
+Reviewed-by: Jim Harris <james.r.harris@intel.com>
+Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
+---
+ lib/nvme/nvme_pcie_common.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/nvme/nvme_pcie_common.c b/lib/nvme/nvme_pcie_common.c
+index 0ef56cb..5fb6304 100644
+--- a/lib/nvme/nvme_pcie_common.c
++++ b/lib/nvme/nvme_pcie_common.c
+@@ -801,7 +801,7 @@ nvme_pcie_qpair_process_completions(struct spdk_nvme_qpair *qpair, uint32_t max_
+ 			__builtin_prefetch(&pqpair->tr[next_cpl->cid]);
+ 		}
+ 
+-#ifdef __PPC64__
++#if defined(__PPC64__) || defined(__loongarch__)
+ 		/*
+ 		 * This memory barrier prevents reordering of:
+ 		 * - load after store from/to tr
+-- 
+2.20.1
+

0043-build-Specify-the-target-build-architecture-for-LOON.patch

@@ -0,0 +1,36 @@
+From d7484395ac0fd85c91365beb4af00c6e5ea39ee6 Mon Sep 17 00:00:00 2001
+From: Xue Liu <liuxue@loongson.cn>
+Date: Thu, 1 Dec 2022 18:39:44 +0800
+Subject: [PATCH 3/3] build: Specify the target build architecture for
+ LOONGARCH.
+
+More information about LoongArch:
+- https://loongson.github.io/LoongArch-Documentation/README-EN.html
+
+Signed-off-by: Xue Liu <liuxue@loongson.cn>
+Change-Id: I24852e31b5fadef3578354da2d26252014330e83
+Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16084
+Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
+Reviewed-by: Jim Harris <james.r.harris@intel.com>
+Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
+---
+ mk/spdk.common.mk | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/mk/spdk.common.mk b/mk/spdk.common.mk
+index da214c8..1e73776 100644
+--- a/mk/spdk.common.mk
++++ b/mk/spdk.common.mk
+@@ -80,6 +80,9 @@ COMMON_CFLAGS += -mcpu=$(TARGET_ARCHITECTURE)
+ else ifeq ($(TARGET_MACHINE),aarch64)
+ COMMON_CFLAGS += -march=$(TARGET_ARCHITECTURE)
+ COMMON_CFLAGS += -DPAGE_SIZE=$(shell getconf PAGESIZE)
++else ifneq ($(filter loongarch%,$(TARGET_MACHINE)),)
++COMMON_CFLAGS += -march=$(TARGET_ARCHITECTURE)
++COMMON_CFLAGS += -DPAGE_SIZE=$(shell getconf PAGESIZE)
+ else
+ COMMON_CFLAGS += -march=core-avx-i
+ endif
+-- 
+2.20.1
+

spdk.spec

@@ -4,7 +4,7 @@
 
 Name: spdk
 Version: 21.01.1
-Release: 15
+Release: 16
 Summary: Set of libraries and utilities for high performance user-mode storage
 License: BSD and MIT
 URL: http://spdk.io
@@ -49,6 +49,9 @@ Patch37: 0037-scripts-nvmf_perf-check-extra_params-key-berofe-acce.patch
 Patch38: 0038-nvme-rdma-Only-wait-for-the-RDMA-event-if-spdk_rdma_.patch
 Patch39: 0039-Cleanup-Fix-boolean-arg-in-fio-plugin.patch
 Patch40: 0040-initialized-status-variable-before-use.patch
+Patch41: 0041-barrier-LOONGARCH-memory-barriers.patch
+Patch42: 0042-nvme-pcie-add-memory-barrier-for-LOONGARCH.patch
+Patch43: 0043-build-Specify-the-target-build-architecture-for-LOON.patch
 
 %define package_version %{version}-%{release}
 
@@ -63,7 +66,7 @@ Patch40: 0040-initialized-status-variable-before-use.patch
 %define use_python2 0
 %endif
 
-ExclusiveArch: x86_64 aarch64
+ExclusiveArch: x86_64 aarch64 loongarch64
 
 BuildRequires: gcc gcc-c++ make
 BuildRequires: dpdk-devel, numactl-devel, ncurses-devel
@@ -225,6 +228,9 @@ mv doc/output/html/ %{install_docdir}
 
 
 %changelog
+* Fri Sep 1 2023 Xue Liu <liuxue@loongson.cn> - 21.01.1-16
+- Add support for LOONGARCH.
+
 * Sat Aug 26 2023 Weifeng Su <suweifeng1@huawei.com> - 21.01.1-15
 - backport patch to fix gcc-12 warning