[dpdk-stable] [PATCH v4 01/19] net/ena: switch memcpy to dpdk-optimized version

[Michal Krawczyk <mk@semihalf.com>]

From: Igor Chauskin <igorch@amazon.com>

memcpy is now mapped to rte_memcpy macro on x86 architectures.

Fixes: 9ba7981ec992 ("ena: add communication layer for DPDK")
Cc: stable@dpdk.org

Signed-off-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Artur Rojek <ar@semihalf.com>
---
v4:
* Add release notes

v2:
* Fix nested declaration of the rte_memcpy on arm64 architecture.

 doc/guides/rel_notes/release_21_05.rst | 7 +++++++
 drivers/net/ena/base/ena_plat_dpdk.h   | 7 ++++++-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/doc/guides/rel_notes/release_21_05.rst b/doc/guides/rel_notes/release_21_05.rst
index 30dec1c1d1..eb1107729a 100644
--- a/doc/guides/rel_notes/release_21_05.rst
+++ b/doc/guides/rel_notes/release_21_05.rst
@@ -202,6 +202,13 @@ New Features
 
   Added packed ring support for async vhost.
 
+* **Updated Amazon ENA PMD.**
+
+  The new driver version (v2.3.0) introduces bug fixes and improvements,
+  including:
+
+  * Changed memcpy mapping to the dpdk-optimized version.
+
 * **Added support of multiple data-units in cryptodev API.**
 
   The cryptodev library has been enhanced to allow operations on multiple
diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h
index a1d749f83f..ae68f860a5 100644
--- a/drivers/net/ena/base/ena_plat_dpdk.h
+++ b/drivers/net/ena/base/ena_plat_dpdk.h
@@ -25,6 +25,7 @@
 #include <rte_spinlock.h>
 
 #include <sys/time.h>
+#include <rte_memcpy.h>
 
 typedef uint64_t u64;
 typedef uint32_t u32;
@@ -62,7 +63,11 @@ typedef uint64_t dma_addr_t;
 #define ENA_UDELAY(x) rte_delay_us_block(x)
 
 #define ENA_TOUCH(x) ((void)(x))
-#define memcpy_toio memcpy
+/* Avoid nested declaration on arm64, as it may define rte_memcpy as memcpy. */
+#if defined(RTE_ARCH_X86)
+#undef memcpy
+#define memcpy rte_memcpy
+#endif
 #define wmb rte_wmb
 #define rmb rte_rmb
 #define mb rte_mb
-- 
2.25.1