From patchwork Thu Aug 4 10:28:38 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tero Kristo X-Patchwork-Id: 73258 Delivered-To: patch@linaro.org Received: by 10.140.29.52 with SMTP id a49csp1315368qga; Thu, 4 Aug 2016 03:30:23 -0700 (PDT) X-Received: by 10.66.43.234 with SMTP id z10mr123853803pal.137.1470306623657; Thu, 04 Aug 2016 03:30:23 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id g130si14018467pfb.296.2016.08.04.03.30.23 for ; Thu, 04 Aug 2016 03:30:23 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755442AbcHDKaW (ORCPT ); Thu, 4 Aug 2016 06:30:22 -0400 Received: from arroyo.ext.ti.com ([198.47.19.12]:53857 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751009AbcHDKaV (ORCPT ); Thu, 4 Aug 2016 06:30:21 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id u74AT7Qf001060; Thu, 4 Aug 2016 05:29:07 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id u74AT7xZ015125; Thu, 4 Aug 2016 05:29:07 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.294.0; Thu, 4 Aug 2016 05:29:07 -0500 Received: from gomoku.home (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id u74ASu7a032023; Thu, 4 Aug 2016 05:29:05 -0500 From: Tero Kristo To: , , , , , CC: Subject: [PATCHv3 03/11] crypto: omap-sham: implement context export/import APIs Date: Thu, 4 Aug 2016 13:28:38 +0300 Message-ID: <1470306526-27219-4-git-send-email-t-kristo@ti.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1470306526-27219-1-git-send-email-t-kristo@ti.com> References: <1470306526-27219-1-git-send-email-t-kristo@ti.com> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Context export/import are now required for ahash algorithms due to required support in algif_hash. Implement these for OMAP SHA driver, saving and restoring the internal state of the driver. Signed-off-by: Tero Kristo --- drivers/crypto/omap-sham.c | 31 +++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c index 6e53944..aa71e61 100644 --- a/drivers/crypto/omap-sham.c +++ b/drivers/crypto/omap-sham.c @@ -1379,6 +1379,27 @@ exit_unlock: return ret; } +static int omap_sham_export(struct ahash_request *req, void *out) +{ + struct omap_sham_reqctx *rctx = ahash_request_ctx(req); + + while (omap_sham_flush(req) == -EINPROGRESS) + msleep(10); + + memcpy(out, rctx, sizeof(*rctx) + SHA512_BLOCK_SIZE); + + return 0; +} + +static int omap_sham_import(struct ahash_request *req, const void *in) +{ + struct omap_sham_reqctx *rctx = ahash_request_ctx(req); + + memcpy(rctx, in, sizeof(*rctx) + SHA512_BLOCK_SIZE); + + return 0; +} + static struct ahash_alg algs_sha1_md5[] = { { .init = omap_sham_init, @@ -2037,8 +2058,14 @@ static int omap_sham_probe(struct platform_device *pdev) for (i = 0; i < dd->pdata->algs_info_size; i++) { for (j = 0; j < dd->pdata->algs_info[i].size; j++) { - err = crypto_register_ahash( - &dd->pdata->algs_info[i].algs_list[j]); + struct ahash_alg *alg; + + alg = &dd->pdata->algs_info[i].algs_list[j]; + alg->export = omap_sham_export; + alg->import = omap_sham_import; + alg->halg.statesize = sizeof(struct omap_sham_reqctx) + + SHA512_BLOCK_SIZE; + err = crypto_register_ahash(alg); if (err) goto err_algs;