crypto: hisilicon/hpre - add debug log

When the received sqe is abnormal, the error message in the sqe written
back by the hardware is printed to help to analyze the abnormal causes.

Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/hisilicon/hpre/hpre_crypto.c b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
index e45e6a10d7a89f82f2d217c8b3e59c4091aef39b..a380087c83f771ee39b6c2c930768ed2e7d2918a 100644 (file)
--- a/drivers/crypto/hisilicon/hpre/hpre_crypto.c
+++ b/drivers/crypto/hisilicon/hpre/hpre_crypto.c
@@ -321,14 +321,16 @@ static void hpre_hw_data_clr_all(struct hpre_ctx *ctx,
 static int hpre_alg_res_post_hf(struct hpre_ctx *ctx, struct hpre_sqe *sqe,
                                void **kreq)
 {
+       struct device *dev = HPRE_DEV(ctx);
        struct hpre_asym_request *req;
-       unsigned int err, done;
+       unsigned int err, done, alg;
        int id;
 
 #define HPRE_NO_HW_ERR         0
 #define HPRE_HW_TASK_DONE      3
 #define HREE_HW_ERR_MASK       0x7ff
 #define HREE_SQE_DONE_MASK     0x3
+#define HREE_ALG_TYPE_MASK     0x1f
        id = (int)le16_to_cpu(sqe->tag);
        req = ctx->req_list[id];
        hpre_rm_req_from_ctx(req);
@@ -343,6 +345,10 @@ static int hpre_alg_res_post_hf(struct hpre_ctx *ctx, struct hpre_sqe *sqe,
        if (likely(err == HPRE_NO_HW_ERR && done == HPRE_HW_TASK_DONE))
                return 0;
 
+       alg = le32_to_cpu(sqe->dw0) & HREE_ALG_TYPE_MASK;
+       dev_err_ratelimited(dev, "alg[0x%x] error: done[0x%x], etype[0x%x]\n",
+               alg, done, err);
+
        return -EINVAL;
 }