From patchwork Fri Apr 9 09:04:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "yekai \(A\)" X-Patchwork-Id: 418928 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9E4CEC43461 for ; Fri, 9 Apr 2021 09:06:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5AB5961186 for ; Fri, 9 Apr 2021 09:06:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232286AbhDIJHD (ORCPT ); Fri, 9 Apr 2021 05:07:03 -0400 Received: from szxga06-in.huawei.com ([45.249.212.32]:16870 "EHLO szxga06-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231749AbhDIJHC (ORCPT ); Fri, 9 Apr 2021 05:07:02 -0400 Received: from DGGEMS407-HUB.china.huawei.com (unknown [172.30.72.60]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4FGsf44SzZzlWx1; Fri, 9 Apr 2021 17:05:00 +0800 (CST) Received: from huawei.com (10.67.165.24) by DGGEMS407-HUB.china.huawei.com (10.3.19.207) with Microsoft SMTP Server id 14.3.498.0; Fri, 9 Apr 2021 17:06:39 +0800 From: Kai Ye To: CC: , , Subject: [PATCH v3 5/5] crypto: hisilicon/sgl - fix the sg buf unmap Date: Fri, 9 Apr 2021 17:04:04 +0800 Message-ID: <1617959044-11023-6-git-send-email-yekai13@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1617959044-11023-1-git-send-email-yekai13@huawei.com> References: <1617959044-11023-1-git-send-email-yekai13@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.24] X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Add data cleared operation for sge data. Signed-off-by: Kai Ye --- drivers/crypto/hisilicon/sgl.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/hisilicon/sgl.c b/drivers/crypto/hisilicon/sgl.c index 7f11e41..0572737 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -192,6 +192,18 @@ static void update_hw_sgl_sum_sge(struct hisi_acc_hw_sgl *hw_sgl, u16 sum) hw_sgl->entry_sum_in_chain = cpu_to_le16(sum); } +static void clear_hw_sgl_sge(struct hisi_acc_hw_sgl *hw_sgl) +{ + struct acc_hw_sge *hw_sge = hw_sgl->sge_entries; + int i; + + for (i = 0; i < le16_to_cpu(hw_sgl->entry_sum_in_sgl); i++) { + hw_sge[i].page_ctrl = NULL; + hw_sge[i].buf = 0; + hw_sge[i].len = 0; + } +} + /** * hisi_acc_sg_buf_map_to_hw_sgl - Map a scatterlist to a hw sgl. * @dev: The device which hw sgl belongs to. @@ -269,7 +281,7 @@ void hisi_acc_sg_buf_unmap(struct device *dev, struct scatterlist *sgl, return; dma_unmap_sg(dev, sgl, sg_nents(sgl), DMA_BIDIRECTIONAL); - + clear_hw_sgl_sge(hw_sgl); hw_sgl->entry_sum_in_chain = 0; hw_sgl->entry_sum_in_sgl = 0; hw_sgl->entry_length_in_sgl = 0;