dpdk/0001-fix-cpu-compatibility.patch

From e2950fec9cd9c235a7847ed97b6914174857bf93 Mon Sep 17 00:00:00 2001
From: "mvarlese@suse.de" <mvarlese@suse.de>
Date: Wed, 29 Apr 2020 12:24:16 +0200
Subject: [PATCH] fix cpu compatibility

Added 0001-fix-cpu-compatibility.patch to address issue with older CPUs (bsc#1125961, bsc#1099474)

Updated 2024-08-26 for version 23.11

diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 7974b27295..25eec8bf6e 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -51,7 +51,11 @@ static struct vdev_custom_scans vdev_custom_scans =
 static rte_spinlock_t vdev_custom_scan_lock = RTE_SPINLOCK_INITIALIZER;
 
 /* register a driver */
-void
+#if defined(__x86_64__) ||  defined(__i386__)
+void __attribute__((target ("sse2")))
+#else
+ void
+#endif
 rte_vdev_register(struct rte_vdev_driver *driver)
 {
 	TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
diff --git a/lib/eal/common/eal_common_bus.c b/lib/eal/common/eal_common_bus.c
index acac14131a..a19f5e5431 100644
--- a/lib/eal/common/eal_common_bus.c
+++ b/lib/eal/common/eal_common_bus.c
@@ -22,7 +22,11 @@ rte_bus_name(const struct rte_bus *bus)
 	return bus->name;
 }
 
-void
+#if defined(__x86_64__) ||  defined(__i386__)
+void __attribute__((target ("sse2")))
+#else
+ void
+#endif
 rte_bus_register(struct rte_bus *bus)
 {
 	RTE_VERIFY(bus);
diff --git a/lib/eal/include/rte_common.h b/lib/eal/include/rte_common.h
index c1ba32d00e..525a575c08 100644
--- a/lib/eal/include/rte_common.h
+++ b/lib/eal/include/rte_common.h
@@ -208,8 +208,20 @@ typedef uint16_t unaligned_uint16_t;
  */
 #ifndef RTE_INIT_PRIO /* Allow to override from EAL */
 #ifndef RTE_TOOLCHAIN_MSVC
+#if defined(__x86_64__) ||  defined(__i386__)
 #define RTE_INIT_PRIO(func, prio) \
-static void __attribute__((constructor(RTE_PRIO(prio)), used)) func(void)
+static void \
+       __attribute__((constructor(RTE_PRIO(prio)), used)) \
+       __attribute__((target ("sse2"))) \
+       __attribute__((target ("no-sse3"))) \
+       __attribute__((target ("no-sse4"))) \
+       func(void)
+#else
+#define RTE_INIT_PRIO(func, prio) \
+static void \
+       __attribute__((constructor(RTE_PRIO(prio)), used)) \
+       func(void)
+#endif
 #else
 /* definition from the Microsoft CRT */
 typedef int(__cdecl *_PIFV)(void);