From patchwork Thu Feb 22 22:27:58 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Uma Krishnan X-Patchwork-Id: 10236533 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 91E4760224 for ; Thu, 22 Feb 2018 22:28:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8C7E828DE6 for ; Thu, 22 Feb 2018 22:28:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8158B28E3E; Thu, 22 Feb 2018 22:28:09 +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 19DEE28DE6 for ; Thu, 22 Feb 2018 22:28:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751909AbeBVW2I (ORCPT ); Thu, 22 Feb 2018 17:28:08 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:33832 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751731AbeBVW2I (ORCPT ); Thu, 22 Feb 2018 17:28:08 -0500 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w1MMO7TR100892 for ; Thu, 22 Feb 2018 17:28:07 -0500 Received: from e15.ny.us.ibm.com (e15.ny.us.ibm.com [129.33.205.205]) by mx0b-001b2d01.pphosted.com with ESMTP id 2ga5293kqu-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Thu, 22 Feb 2018 17:28:07 -0500 Received: from localhost by e15.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 22 Feb 2018 17:28:06 -0500 Received: from b01cxnp23033.gho.pok.ibm.com (9.57.198.28) by e15.ny.us.ibm.com (146.89.104.202) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; Thu, 22 Feb 2018 17:28:03 -0500 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w1MMS3QX51511350; Thu, 22 Feb 2018 22:28:03 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D3B37AE051; Thu, 22 Feb 2018 17:29:24 -0500 (EST) Received: from p8tul1-build.aus.stglabs.ibm.com (unknown [9.3.141.206]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP id 2D417AE03B; Thu, 22 Feb 2018 17:29:24 -0500 (EST) From: Uma Krishnan To: linux-scsi@vger.kernel.org, James Bottomley , "Martin K. Petersen" , "Matthew R. Ochs" , "Manoj N. Kumar" Cc: linuxppc-dev@lists.ozlabs.org, Andrew Donnellan , Frederic Barrat , Christophe Lombard Subject: [PATCH 33/38] cxlflash: Setup LISNs for master contexts Date: Thu, 22 Feb 2018 16:27:58 -0600 X-Mailer: git-send-email 2.1.0 In-Reply-To: <1519338010-51782-1-git-send-email-ukrishn@linux.vnet.ibm.com> References: <1519338010-51782-1-git-send-email-ukrishn@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18022222-0036-0000-0000-000002C50F13 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008579; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000254; SDB=6.00993626; UDB=6.00504906; IPR=6.00772965; MB=3.00019695; MTD=3.00000008; XFM=3.00000015; UTC=2018-02-22 22:28:04 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18022222-0037-0000-0000-0000436E0806 Message-Id: <1519338478-52976-1-git-send-email-ukrishn@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-02-22_08:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1802220278 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Similar to user contexts, master contexts also require that the per-context LISN registers be programmed for certain AFUs. The mapped trigger page is obtained from underlying transport and registered with AFU for each master context. Signed-off-by: Uma Krishnan --- drivers/scsi/cxlflash/main.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c index 5d754d1..8c55fcd 100644 --- a/drivers/scsi/cxlflash/main.c +++ b/drivers/scsi/cxlflash/main.c @@ -1756,6 +1756,8 @@ static int init_global(struct cxlflash_cfg *cfg) u64 wwpn[MAX_FC_PORTS]; /* wwpn of AFU ports */ int i = 0, num_ports = 0; int rc = 0; + int j; + void *ctx; u64 reg; rc = read_vpd(cfg, &wwpn[0]); @@ -1816,6 +1818,25 @@ static int init_global(struct cxlflash_cfg *cfg) msleep(100); } + if (afu_is_ocxl_lisn(afu)) { + /* Set up the LISN effective address for each master */ + for (i = 0; i < afu->num_hwqs; i++) { + hwq = get_hwq(afu, i); + ctx = hwq->ctx_cookie; + + for (j = 0; j < hwq->num_irqs; j++) { + reg = cfg->ops->get_irq_objhndl(ctx, j); + writeq_be(reg, &hwq->ctrl_map->lisn_ea[j]); + } + + reg = hwq->ctx_hndl; + writeq_be(SISL_LISN_PASID(reg, reg), + &hwq->ctrl_map->lisn_pasid[0]); + writeq_be(SISL_LISN_PASID(0UL, reg), + &hwq->ctrl_map->lisn_pasid[1]); + } + } + /* Set up master's own CTX_CAP to allow real mode, host translation */ /* tables, afu cmds and read/write GSCSI cmds. */ /* First, unlock ctx_cap write by reading mbox */