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 03fbc5f..4edbc8e 100644 (file)
--- 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;