On 6/11/2020 1:23 PM, Jerin Jacob wrote:

On Thu, Jun 11, 2020 at 3:41 PM Radu Nicolau [off-list ref] wrote:

quoted

Add rte_write32_wc function that implements a WC store
using movdiri instruction.

Signed-off-by: Radu Nicolau <redacted>
---
  lib/librte_eal/x86/include/rte_io.h | 20 ++++++++++++++++++++
  1 file changed, 20 insertions(+)

diff --git a/lib/librte_eal/x86/include/rte_io.h b/lib/librte_eal/x86/include/rte_io.h
index 2db71b1..3d74bec 100644
--- a/lib/librte_eal/x86/include/rte_io.h
+++ b/lib/librte_eal/x86/include/rte_io.h

@@ -11,6 +11,26 @@ extern "C" {

  #include "generic/rte_io.h"

+/**
+ * Write a 32-bit value to I/O device memory address *addr*.
+ * Uses MOVDIRI instruction to perform a direct-store operation using WC
+ * memory write protocol.

It will be an x86 specific API, Please change the API name to reflect that.

You mean something like rte_x86_write32_wc?