From patchwork Tue Mar 30 07:39:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "yekai \(A\)" X-Patchwork-Id: 411822 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 4FAA7C433E5 for ; Tue, 30 Mar 2021 07:42:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1E22A61959 for ; Tue, 30 Mar 2021 07:42:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231424AbhC3Hl6 (ORCPT ); Tue, 30 Mar 2021 03:41:58 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:15099 "EHLO szxga04-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231394AbhC3Hls (ORCPT ); Tue, 30 Mar 2021 03:41:48 -0400 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.58]) by szxga04-in.huawei.com (SkyGuard) with ESMTP id 4F8hDG3FWsz19J3j; Tue, 30 Mar 2021 15:39:42 +0800 (CST) Received: from huawei.com (10.67.165.24) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.498.0; Tue, 30 Mar 2021 15:41:37 +0800 From: Kai Ye To: CC: , , , Subject: [PATCH v2 5/5] crypto: hisilicon/sgl - fix the sg buf unmap Date: Tue, 30 Mar 2021 15:39:06 +0800 Message-ID: <1617089946-48078-6-git-send-email-yekai13@huawei.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1617089946-48078-1-git-send-email-yekai13@huawei.com> References: <1617089946-48078-1-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 clear data 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 c618aaf..7a58ab3 100644 --- a/drivers/crypto/hisilicon/sgl.c +++ b/drivers/crypto/hisilicon/sgl.c @@ -189,6 +189,18 @@ 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 < 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. @@ -266,7 +278,7 @@ 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;