From: Vidya Sagar Velumuri <vvelumuri@marvell.com>
Date: Wed, 15 Sep 2021 06:11:01 +0000 (+0000)
Subject: common/cnxk: set key length for PDCP algos
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=a90db80d7d7202df761a087728b33b87c44db310;p=dpdk.git

common/cnxk: set key length for PDCP algos

Set proper bits in the context based on key length for PDCP
algorithms. This is required to support ZUC 256bit key cases.

Signed-off-by: Vidya Sagar Velumuri <vvelumuri@marvell.com>
Acked-by: Akhil Goyal <gakhil@marvell.com>
---

diff --git a/drivers/common/cnxk/roc_se.c b/drivers/common/cnxk/roc_se.c
index 03fbc5f2f7..4edbc8e547 100644
--- a/drivers/common/cnxk/roc_se.c
+++ b/drivers/common/cnxk/roc_se.c
@@ -160,6 +160,13 @@ cpt_pdcp_mac_len_set(struct roc_se_zuc_snow3g_ctx *zs_ctx, uint16_t mac_len)
 {
 	roc_se_pdcp_mac_len_type mac_type = 0;
 
+	if (roc_model_is_cn9k()) {
+		if (mac_len != 4) {
+			plt_err("Only mac len 4 is supported on cn9k");
+			return -ENOTSUP;
+		}
+	}
+
 	switch (mac_len) {
 	case 4:
 		mac_type = ROC_SE_PDCP_MAC_LEN_32_BIT;
@@ -230,6 +237,9 @@ roc_se_auth_key_set(struct roc_se_ctx *se_ctx, roc_se_auth_type type,
 		case ROC_SE_ZUC_EIA3:
 			zs_ctx->zuc.otk_ctx.w0.s.alg_type =
 				ROC_SE_PDCP_ALG_TYPE_ZUC;
+			ret = cpt_pdcp_key_type_set(zs_ctx, key_len);
+			if (ret)
+				return ret;
 			ret = cpt_pdcp_mac_len_set(zs_ctx, mac_len);
 			if (ret)
 				return ret;