From patchwork Thu Nov 26 01:48:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyrel Datwyler X-Patchwork-Id: 333993 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,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 EC199C63798 for ; Thu, 26 Nov 2020 01:48:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7EC2021D7A for ; Thu, 26 Nov 2020 01:48:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="hycgn9S7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731956AbgKZBso (ORCPT ); Wed, 25 Nov 2020 20:48:44 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:57936 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731649AbgKZBsm (ORCPT ); Wed, 25 Nov 2020 20:48:42 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0AQ1VGCj003569; Wed, 25 Nov 2020 20:48:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=+riWgeXyh3cyuXjhvDZjAteH+npxy0F0qRQx/ifLUrw=; b=hycgn9S76vaaOqZNFmBMKx0WVM2j/BNd6x7BUfz7DqS1veYinA0Qv3MAXxVRaV+MnWhP giDLl4KXvJe+TtCqAILrIY7g6disc9mP+RV4eHU431gmNTGfBIX6NlfiZQeEHhHlUvmq ++cPsxtIfSHIxp3+TkDgwSR8/ut5mqrx1HcwikM9KoQ1qFSOunaSGSmxI/f59aa1l4Cd GZ+myG1M7s2BVJUmLhFtph6VQSjgBJKxtSA2IT1uQfmzlqLpEggC69ha/TKesRlJF/8l JLvCatV85wnMRLl2gyv8bWS2+X9dsEu9m+VY06Vn88ijNqOubWoNj1dSNAw3YFgxZcaH AQ== Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0b-001b2d01.pphosted.com with ESMTP id 3522q40aqa-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 25 Nov 2020 20:48:35 -0500 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 0AQ1lcGu008424; Thu, 26 Nov 2020 01:48:34 GMT Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by ppma01dal.us.ibm.com with ESMTP id 34xth9n0tp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 26 Nov 2020 01:48:34 +0000 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0AQ1mQoL38535512 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 26 Nov 2020 01:48:26 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BB32A6E053; Thu, 26 Nov 2020 01:48:32 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 72F936E04E; Thu, 26 Nov 2020 01:48:32 +0000 (GMT) Received: from vios4361.aus.stglabs.ibm.com (unknown [9.3.43.61]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Thu, 26 Nov 2020 01:48:32 +0000 (GMT) From: Tyrel Datwyler To: james.bottomley@hansenpartnership.com Cc: martin.petersen@oracle.com, linux-scsi@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, brking@linux.ibm.com, Tyrel Datwyler Subject: [PATCH 08/13] ibmvfc: map/request irq and register Sub-CRQ interrupt handler Date: Wed, 25 Nov 2020 19:48:19 -0600 Message-Id: <20201126014824.123831-9-tyreld@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201126014824.123831-1-tyreld@linux.ibm.com> References: <20201126014824.123831-1-tyreld@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312, 18.0.737 definitions=2020-11-25_14:2020-11-25,2020-11-25 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=3 mlxscore=0 malwarescore=0 phishscore=0 mlxlogscore=993 bulkscore=0 impostorscore=0 priorityscore=1501 adultscore=0 clxscore=1015 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011260001 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Create an irq mapping for the hw_irq number provided from phyp firmware. Request an irq assigned our Sub-CRQ interrupt handler. Signed-off-by: Tyrel Datwyler --- drivers/scsi/ibmvscsi/ibmvfc.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 4fb782fa2c66..53db6da20923 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -5119,12 +5119,34 @@ static int ibmvfc_register_scsi_channel(struct ibmvfc_host *vhost, goto reg_failed; } + scrq->irq = irq_create_mapping(NULL, scrq->hw_irq); + + if (!scrq->irq) { + rc = -EINVAL; + dev_err(dev, "Error mapping sub-crq[%d] irq\n", index); + goto irq_failed; + } + + snprintf(scrq->name, sizeof(scrq->name), "ibmvfc-%x-scsi%d", + vdev->unit_address, index); + rc = request_irq(scrq->irq, ibmvfc_interrupt_scsi, 0, scrq->name, scrq); + + if (rc) { + dev_err(dev, "Couldn't register sub-crq[%d] irq\n", index); + irq_dispose_mapping(scrq->irq); + goto irq_failed; + } + scrq->hwq_id = index; scrq->vhost = vhost; LEAVE; return 0; +irq_failed: + do { + plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie); + } while (rc == H_BUSY || H_IS_LONG_BUSY(rc)); reg_failed: dma_unmap_single(dev, scrq->msg_token, PAGE_SIZE, DMA_BIDIRECTIONAL); dma_map_failed: