From 29b323d8210d51a047391dd80e78bffc8ab052fd Mon Sep 17 00:00:00 2001
From: Elliot Gorokhovsky <embg@fb.com>
Date: Thu, 23 Feb 2023 16:00:28 +0800
Subject: [PATCH] QATAPP-28529: fix minmatch bug

Change-Id: I8b1fd8379dbb187921c95709158223e48aecb813
---
 utils/qzstd.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/utils/qzstd.c b/utils/qzstd.c
index a41a9e0..8256b71 100644
--- a/utils/qzstd.c
+++ b/utils/qzstd.c
@@ -323,6 +323,12 @@ int compressFile(int in_file, int out_file)
     * should be 3. if mini match is 3, then LZ4MINMATCH should be 2*/
     LZ4MINMATCH = g_sess_params.lz4s_mini_match == 4 ? 3 : 2;
 
+    /* Align zstd minmatch to the QAT minmatch */
+    ZSTD_CCtx_setParameter(
+        zc, ZSTD_c_minMatch,
+        g_sess_params.lz4s_mini_match >= 4 ? 4 : 3
+    );
+
     //setup session
     int ret = qzInit(&qzstd_g_sess, g_sess_params.common_params.sw_backup);
     if (ret != QZ_OK && ret != QZ_DUPLICATE) {