From ce43b2e351c860bc50151b3ddc190b92a7536c8e Mon Sep 17 00:00:00 2001 From: Ofer Heifetz Date: Mon, 28 May 2018 11:03:27 +0200 Subject: [PATCH] crypto: inside-secure - increase minimum transfer size The token size was increased for AEAD support. Occasional authentication fails arise since the result descriptor overflows. This is because the token size and the engine minimal thresholds must be in sync. Signed-off-by: Ofer Heifetz Signed-off-by: Antoine Tenart Signed-off-by: Herbert Xu --- drivers/crypto/inside-secure/safexcel.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/inside-secure/safexcel.c b/drivers/crypto/inside-secure/safexcel.c index 4e86f86..8691f63 100644 --- a/drivers/crypto/inside-secure/safexcel.c +++ b/drivers/crypto/inside-secure/safexcel.c @@ -296,8 +296,8 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv) /* DMA transfer size to use */ val = EIP197_HIA_DFE_CFG_DIS_DEBUG; - val |= EIP197_HIA_DxE_CFG_MIN_DATA_SIZE(5) | EIP197_HIA_DxE_CFG_MAX_DATA_SIZE(9); - val |= EIP197_HIA_DxE_CFG_MIN_CTRL_SIZE(5) | EIP197_HIA_DxE_CFG_MAX_CTRL_SIZE(7); + val |= EIP197_HIA_DxE_CFG_MIN_DATA_SIZE(6) | EIP197_HIA_DxE_CFG_MAX_DATA_SIZE(9); + val |= EIP197_HIA_DxE_CFG_MIN_CTRL_SIZE(6) | EIP197_HIA_DxE_CFG_MAX_CTRL_SIZE(7); val |= EIP197_HIA_DxE_CFG_DATA_CACHE_CTRL(RD_CACHE_3BITS); val |= EIP197_HIA_DxE_CFG_CTRL_CACHE_CTRL(RD_CACHE_3BITS); writel(val, EIP197_HIA_DFE(priv) + EIP197_HIA_DFE_CFG); @@ -306,9 +306,9 @@ static int safexcel_hw_init(struct safexcel_crypto_priv *priv) writel(0, EIP197_HIA_DFE_THR(priv) + EIP197_HIA_DFE_THR_CTRL); /* Configure the procesing engine thresholds */ - writel(EIP197_PE_IN_xBUF_THRES_MIN(5) | EIP197_PE_IN_xBUF_THRES_MAX(9), + writel(EIP197_PE_IN_xBUF_THRES_MIN(6) | EIP197_PE_IN_xBUF_THRES_MAX(9), EIP197_PE(priv) + EIP197_PE_IN_DBUF_THRES); - writel(EIP197_PE_IN_xBUF_THRES_MIN(5) | EIP197_PE_IN_xBUF_THRES_MAX(7), + writel(EIP197_PE_IN_xBUF_THRES_MIN(6) | EIP197_PE_IN_xBUF_THRES_MAX(7), EIP197_PE(priv) + EIP197_PE_IN_TBUF_THRES); if (priv->version == EIP197) { -- 2.7.4