From patchwork Mon Jul 17 23:46:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Haren Myneni X-Patchwork-Id: 9846477 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 801176037F for ; Mon, 17 Jul 2017 23:46:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 98986267EC for ; Mon, 17 Jul 2017 23:46:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8D1C1269E2; Mon, 17 Jul 2017 23:46:24 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2DCDC267EC for ; Mon, 17 Jul 2017 23:46:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751525AbdGQXqX (ORCPT ); Mon, 17 Jul 2017 19:46:23 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:37128 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751455AbdGQXqW (ORCPT ); Mon, 17 Jul 2017 19:46:22 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v6HNkF8w064249 for ; Mon, 17 Jul 2017 19:46:22 -0400 Received: from e18.ny.us.ibm.com (e18.ny.us.ibm.com [129.33.205.208]) by mx0a-001b2d01.pphosted.com with ESMTP id 2brr0gfbr4-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 17 Jul 2017 19:46:22 -0400 Received: from localhost by e18.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 17 Jul 2017 19:46:17 -0400 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp23034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v6HNkE8w26607684; Mon, 17 Jul 2017 23:46:16 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 60CD1AC041; Mon, 17 Jul 2017 19:46:25 -0400 (EDT) Received: from [9.70.82.143] (unknown [9.70.82.143]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP id 889CCAC03A; Mon, 17 Jul 2017 19:46:24 -0400 (EDT) Subject: [PATCH V2 2/6] crypto/nx: Create nx842_configure_crb function From: Haren Myneni To: mpe@ellerman.id.au, herbert@gondor.apana.org.au Cc: ddstreet@ieee.org, linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org, benh@kernel.crashing.org, mikey@neuling.org, suka@us.ibm.com, hbabu@us.ibm.com Date: Mon, 17 Jul 2017 16:46:11 -0700 Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 X-TM-AS-GCONF: 00 x-cbid: 17071723-0044-0000-0000-0000036F66E0 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007379; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000214; SDB=6.00889068; UDB=6.00444056; IPR=6.00669240; BA=6.00005476; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016254; XFM=3.00000015; UTC=2017-07-17 23:46:19 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17071723-0045-0000-0000-0000079D6C6F Message-Id: <1500335171.995.10.camel@hbabu-laptop> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-07-17_18:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1706020000 definitions=main-1707170382 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Configure CRB is moved to nx842_configure_crb() so that it can be used for icswx and VAS exec functions. VAS function will be added later with P9 support. Signed-off-by: Haren Myneni --- drivers/crypto/nx/nx-842-powernv.c | 57 +++++++++++++++++++++++++------------- 1 file changed, 38 insertions(+), 19 deletions(-) diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c index 161987698bbc..1bd19e03eb7d 100644 --- a/drivers/crypto/nx/nx-842-powernv.c +++ b/drivers/crypto/nx/nx-842-powernv.c @@ -358,6 +358,40 @@ static int wait_for_csb(struct nx842_workmem *wmem, return 0; } +static int nx842_config_crb(const unsigned char *in, unsigned int inlen, + unsigned char *out, unsigned int outlen, + struct nx842_workmem *wmem) +{ + struct coprocessor_request_block *crb; + struct coprocessor_status_block *csb; + u64 csb_addr; + int ret; + + crb = &wmem->crb; + csb = &crb->csb; + + /* Clear any previous values */ + memset(crb, 0, sizeof(*crb)); + + /* set up DDLs */ + ret = setup_ddl(&crb->source, wmem->ddl_in, + (unsigned char *)in, inlen, true); + if (ret) + return ret; + + ret = setup_ddl(&crb->target, wmem->ddl_out, + out, outlen, false); + if (ret) + return ret; + + /* set up CRB's CSB addr */ + csb_addr = nx842_get_pa(csb) & CRB_CSB_ADDRESS; + csb_addr |= CRB_CSB_AT; /* Addrs are phys */ + crb->csb_addr = cpu_to_be64(csb_addr); + + return 0; +} + /** * nx842_exec_icswx - compress/decompress data using the 842 algorithm * @@ -397,7 +431,6 @@ static int nx842_exec_icswx(const unsigned char *in, unsigned int inlen, struct coprocessor_status_block *csb; struct nx842_workmem *wmem; int ret; - u64 csb_addr; u32 ccw; unsigned int outlen = *outlenp; @@ -411,33 +444,19 @@ static int nx842_exec_icswx(const unsigned char *in, unsigned int inlen, return -ENODEV; } - crb = &wmem->crb; - csb = &crb->csb; - - /* Clear any previous values */ - memset(crb, 0, sizeof(*crb)); - - /* set up DDLs */ - ret = setup_ddl(&crb->source, wmem->ddl_in, - (unsigned char *)in, inlen, true); - if (ret) - return ret; - ret = setup_ddl(&crb->target, wmem->ddl_out, - out, outlen, false); + ret = nx842_config_crb(in, inlen, out, outlen, wmem); if (ret) return ret; + crb = &wmem->crb; + csb = &crb->csb; + /* set up CCW */ ccw = 0; ccw = SET_FIELD(CCW_CT, ccw, nx842_ct); ccw = SET_FIELD(CCW_CI_842, ccw, 0); /* use 0 for hw auto-selection */ ccw = SET_FIELD(CCW_FC_842, ccw, fc); - /* set up CRB's CSB addr */ - csb_addr = nx842_get_pa(csb) & CRB_CSB_ADDRESS; - csb_addr |= CRB_CSB_AT; /* Addrs are phys */ - crb->csb_addr = cpu_to_be64(csb_addr); - wmem->start = ktime_get(); /* do ICSWX */