crypto: caam/qi - return -EBADMSG for ICV check failure

Crypto drivers are expected to return -EBADMSG in case of
ICV check (authentication) failure.

In this case it also makes sense to suppress the error message
in the QI dequeue callback.
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/caamalg_qi.c

@@ -562,7 +562,17 @@ static void aead_done(struct caam_drv_req *drv_req, u32 status)
 	qidev = caam_ctx->qidev;
 
 	if (unlikely(status)) {
+		u32 ssrc = status & JRSTA_SSRC_MASK;
+		u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
+
 		caam_jr_strstatus(qidev, status);
+		/*
+		 * verify hw auth check passed else return -EBADMSG
+		 */
+		if (ssrc == JRSTA_SSRC_CCB_ERROR &&
+		    err_id == JRSTA_CCBERR_ERRID_ICVCHK)
+			ecode = -EBADMSG;
+		else
 			ecode = -EIO;
 	}
 

drivers/crypto/caam/qi.c

@@ -579,8 +579,15 @@ static enum qman_cb_dqrr_result caam_rsp_fq_dqrr_cb(struct qman_portal *p,
 
 	fd = &dqrr->fd;
 	status = be32_to_cpu(fd->status);
-	if (unlikely(status))
-		dev_err(qidev, "Error: %#x in CAAM response FD\n", status);
+	if (unlikely(status)) {
+		u32 ssrc = status & JRSTA_SSRC_MASK;
+		u8 err_id = status & JRSTA_CCBERR_ERRID_MASK;
+
+		if (ssrc != JRSTA_SSRC_CCB_ERROR ||
+		    err_id != JRSTA_CCBERR_ERRID_ICVCHK)
+			dev_err(qidev, "Error: %#x in CAAM response FD\n",
+				status);
+	}
 
 	if (unlikely(qm_fd_get_format(fd) != qm_fd_compound)) {
 		dev_err(qidev, "Non-compound FD from CAAM\n");