From patchwork Wed Dec 2 00:53:22 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyrel Datwyler X-Patchwork-Id: 11944449 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=unavailable 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 8686BC83013 for ; Wed, 2 Dec 2020 00:56:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 51B862076C for ; Wed, 2 Dec 2020 00:56:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727911AbgLBAzp (ORCPT ); Tue, 1 Dec 2020 19:55:45 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:37014 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726023AbgLBAzo (ORCPT ); Tue, 1 Dec 2020 19:55:44 -0500 Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 0B20WAIO073360; Tue, 1 Dec 2020 19:54:55 -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=Z2vhjZhm7GoP5hnLOxhFY06wdaOFKem263lQkV4c8To=; b=HAuimD4sAw3la1sOXnwalVVDUwqfQr9dGSf1f5JMg+On16WtkyrABRe9szdx64HgMc+b pDqSbu9i0xhLADAUVqEQAw3RKxpqdtVlQO88tjkHqiz2lfh/kN99YAF17RwxGPfrvzJD 2ftyDTUXiuNBwuhPRB7xjbXZ/R2ToayLFt4yx8s6yppk5lM1qv/pryIb3A+yTH7xMlCG /gwi+29W0jUTbty5QqS+vqxpSo+kut05v9K9a48ULvvpSLnmXAtDfPI674uLzaeKaD2h 1vho6sbMV8JtJLbMSkFURQidvtEPG5zl6KgoA1UdzXtYIhylCVlgsIwF6oFDRun6W6Jq GQ== Received: from ppma01wdc.us.ibm.com (fd.55.37a9.ip4.static.sl-reverse.com [169.55.85.253]) by mx0b-001b2d01.pphosted.com with ESMTP id 355k52u2ed-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 01 Dec 2020 19:54:53 -0500 Received: from pps.filterd (ppma01wdc.us.ibm.com [127.0.0.1]) by ppma01wdc.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 0B20f525016202; Wed, 2 Dec 2020 00:54:52 GMT Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by ppma01wdc.us.ibm.com with ESMTP id 355vrfhrjm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 02 Dec 2020 00:54:52 +0000 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp07028.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0B20ragN15401224 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 2 Dec 2020 00:53:36 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6D8C07805F; Wed, 2 Dec 2020 00:53:36 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 078D47805E; Wed, 2 Dec 2020 00:53:36 +0000 (GMT) Received: from vios4361.aus.stglabs.ibm.com (unknown [9.3.43.61]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Wed, 2 Dec 2020 00:53:35 +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 , Brian King Subject: [PATCH v2 10/17] ibmvfc: advertise client support for using hardware channels Date: Tue, 1 Dec 2020 18:53:22 -0600 Message-Id: <20201202005329.4538-11-tyreld@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20201202005329.4538-1-tyreld@linux.ibm.com> References: <20201202005329.4538-1-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=2020-12-01_12:2020-11-30,2020-12-01 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 lowpriorityscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 phishscore=0 bulkscore=0 impostorscore=0 spamscore=0 clxscore=1015 adultscore=0 suspectscore=1 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012010142 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Previous patches have plumbed the necessary Sub-CRQ interface and channel negotiation MADs to fully channelized hardware queues. Advertise client support via NPIV Login capability IBMVFC_CAN_USE_CHANNELS when the client bits have MQ enabled via vhost->mq_enabled, or when channels were already in use during a subsequent NPIV Login. The later is required because channel support is only renegotiated after a CRQ pair is broken. Simple NPIV Logout/Logins require the client to continue to advertise the channel capability until the CRQ pair between the client is broken. Signed-off-by: Tyrel Datwyler Reviewed-by: Brian King --- drivers/scsi/ibmvscsi/ibmvfc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index bfd3340eb0b6..0e6c9e55a221 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -1282,6 +1282,10 @@ static void ibmvfc_set_login_info(struct ibmvfc_host *vhost) login_info->max_cmds = cpu_to_be32(max_requests + IBMVFC_NUM_INTERNAL_REQ); login_info->capabilities = cpu_to_be64(IBMVFC_CAN_MIGRATE | IBMVFC_CAN_SEND_VF_WWPN); + + if (vhost->mq_enabled || vhost->using_channels) + login_info->capabilities |= cpu_to_be64(IBMVFC_CAN_USE_CHANNELS); + login_info->async.va = cpu_to_be64(vhost->async_crq.msg_token); login_info->async.len = cpu_to_be32(vhost->async_crq.size * sizeof(*vhost->async_crq.msgs)); strncpy(login_info->partition_name, vhost->partition_name, IBMVFC_MAX_NAME);