From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 40909X36pzzF241 for ; Tue, 27 Mar 2018 03:34:56 +1100 (AEDT) Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w2QGLdf8019411 for ; Mon, 26 Mar 2018 12:34:54 -0400 Received: from e34.co.us.ibm.com (e34.co.us.ibm.com [32.97.110.152]) by mx0a-001b2d01.pphosted.com with ESMTP id 2gy3nd2deu-1 (version=TLSv1.2 cipher=AES256-SHA256 bits=256 verify=NOT) for ; Mon, 26 Mar 2018 12:34:53 -0400 Received: from localhost by e34.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 26 Mar 2018 10:34:53 -0600 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 v3 33/41] cxlflash: Setup LISNs for master contexts Date: Mon, 26 Mar 2018 11:34:48 -0500 In-Reply-To: <1522081759-57431-1-git-send-email-ukrishn@linux.vnet.ibm.com> References: <1522081759-57431-1-git-send-email-ukrishn@linux.vnet.ibm.com> Message-Id: <1522082088-58675-1-git-send-email-ukrishn@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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 Acked-by: Matthew R. Ochs --- 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 */ -- 2.1.0