From patchwork Mon Jan 11 23:12:19 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyrel Datwyler X-Patchwork-Id: 361590 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 D0113C43332 for ; Tue, 12 Jan 2021 00:30:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A96CC22CF7 for ; Tue, 12 Jan 2021 00:30:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405542AbhALAZt (ORCPT ); Mon, 11 Jan 2021 19:25:49 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:12754 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2403938AbhAKXOs (ORCPT ); Mon, 11 Jan 2021 18:14:48 -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 10BN1QnQ093660; Mon, 11 Jan 2021 18:12:37 -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=tRxjrYeZ9O21Nei950L0agvbsa0y2iWrGrLttEO7+gU=; b=s05XxKIty3kqsE9Bh4XGLX4AqENk1qPcoeYznAaOVHF2pYlgSxGEcXsZ2+/7HhILOW9x EV/JTQo5idHLzw1mJ/ImeFf6VoQnd4W8OCez7VHDSfOgz+5Q1dsjUeXxJk68Llb5XjsH Id6f8lMuuUdRWzGuGrCrcstn+c5Vs+jSFMtRJUVnqRj0EjL6dpBCUyaggKJVHPvVUtvY iSBF0f4hBL23z3Ft0m0Gpf5BDXiioi2ORnM1Uzi3LbDZn3tmlMZ5yaKJZtBnfu34Hca9 aTD3dXmeLjHTVQroUrKyfiM1Grrt8TbOQew+vg4VCf1tZEiRz8LCHcEH8FsRHqDenLJJ BQ== Received: from ppma02dal.us.ibm.com (a.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.10]) by mx0b-001b2d01.pphosted.com with ESMTP id 360wgfmeja-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Jan 2021 18:12:37 -0500 Received: from pps.filterd (ppma02dal.us.ibm.com [127.0.0.1]) by ppma02dal.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 10BN81ms025543; Mon, 11 Jan 2021 23:12:37 GMT Received: from b03cxnp08025.gho.boulder.ibm.com (b03cxnp08025.gho.boulder.ibm.com [9.17.130.17]) by ppma02dal.us.ibm.com with ESMTP id 35y4496e2n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Jan 2021 23:12:36 +0000 Received: from b03ledav004.gho.boulder.ibm.com (b03ledav004.gho.boulder.ibm.com [9.17.130.235]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 10BNCZHC29360520 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Jan 2021 23:12:35 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1D9AA78063; Mon, 11 Jan 2021 23:12:35 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B05527805C; Mon, 11 Jan 2021 23:12:34 +0000 (GMT) Received: from vios4361.aus.stglabs.ibm.com (unknown [9.3.43.61]) by b03ledav004.gho.boulder.ibm.com (Postfix) with ESMTP; Mon, 11 Jan 2021 23:12:34 +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 v4 15/21] ibmvfc: send commands down HW Sub-CRQ when channelized Date: Mon, 11 Jan 2021 17:12:19 -0600 Message-Id: <20210111231225.105347-16-tyreld@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210111231225.105347-1-tyreld@linux.ibm.com> References: <20210111231225.105347-1-tyreld@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2021-01-11_32:2021-01-11,2021-01-11 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 malwarescore=0 bulkscore=0 mlxscore=0 priorityscore=1501 mlxlogscore=999 spamscore=0 adultscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101110126 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org When the client has negotiated the use of channels all vfcFrames are required to go down a Sub-CRQ channel or it is a protocoal violation. If the adapter state is channelized submit vfcFrames to the appropriate Sub-CRQ via the h_send_sub_crq() helper. Signed-off-by: Tyrel Datwyler --- drivers/scsi/ibmvscsi/ibmvfc.c | 39 ++++++++++++++++++++++++++++------ 1 file changed, 33 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 3f3cc37a263f..865b87881d86 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -704,6 +704,15 @@ static int ibmvfc_send_crq(struct ibmvfc_host *vhost, u64 word1, u64 word2) return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, word1, word2); } +static int ibmvfc_send_sub_crq(struct ibmvfc_host *vhost, u64 cookie, u64 word1, + u64 word2, u64 word3, u64 word4) +{ + struct vio_dev *vdev = to_vio_dev(vhost->dev); + + return plpar_hcall_norets(H_SEND_SUB_CRQ, vdev->unit_address, cookie, + word1, word2, word3, word4); +} + /** * ibmvfc_send_crq_init - Send a CRQ init message * @vhost: ibmvfc host struct @@ -1623,8 +1632,17 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt, mb(); - if ((rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), - be64_to_cpu(crq_as_u64[1])))) { + if (evt->queue->fmt == IBMVFC_SUB_CRQ_FMT) + rc = ibmvfc_send_sub_crq(vhost, + evt->queue->vios_cookie, + be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1]), + 0, 0); + else + rc = ibmvfc_send_crq(vhost, be64_to_cpu(crq_as_u64[0]), + be64_to_cpu(crq_as_u64[1])); + + if (rc) { list_del(&evt->queue_list); spin_unlock_irqrestore(&evt->queue->l_lock, flags); del_timer(&evt->timer); @@ -1842,6 +1860,7 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) struct ibmvfc_event *evt; u32 tag_and_hwq = blk_mq_unique_tag(cmnd->request); u16 hwq = blk_mq_unique_tag_to_hwq(tag_and_hwq); + u16 scsi_channel; int rc; if (unlikely((rc = fc_remote_port_chkready(rport))) || @@ -1852,7 +1871,13 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } cmnd->result = (DID_OK << 16); - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) { + scsi_channel = hwq % vhost->scsi_scrqs.active_queues; + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[scsi_channel]); + evt->hwq = hwq % vhost->scsi_scrqs.active_queues; + } else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_scsi_done, IBMVFC_CMD_FORMAT); evt->cmnd = cmnd; @@ -1868,8 +1893,6 @@ static int ibmvfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd) } vfc_cmd->correlation = cpu_to_be64((u64)evt); - if (vhost->using_channels) - evt->hwq = hwq % vhost->scsi_scrqs.active_queues; if (likely(!(rc = ibmvfc_map_sg_data(cmnd, evt, vfc_cmd, vhost->dev)))) return ibmvfc_send_event(evt, vhost, 0); @@ -2200,7 +2223,11 @@ static int ibmvfc_reset_device(struct scsi_device *sdev, int type, char *desc) spin_lock_irqsave(vhost->host->host_lock, flags); if (vhost->state == IBMVFC_ACTIVE) { - evt = ibmvfc_get_event(&vhost->crq); + if (vhost->using_channels) + evt = ibmvfc_get_event(&vhost->scsi_scrqs.scrqs[0]); + else + evt = ibmvfc_get_event(&vhost->crq); + ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_CMD_FORMAT); tmf = ibmvfc_init_vfc_cmd(evt, sdev); iu = ibmvfc_get_fcp_iu(vhost, tmf);