From patchwork Mon Jan 11 23:12:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyrel Datwyler X-Patchwork-Id: 361587 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 3F6BCC433E0 for ; Tue, 12 Jan 2021 00:31:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 17D4522D08 for ; Tue, 12 Jan 2021 00:31:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391766AbhALAZr (ORCPT ); Mon, 11 Jan 2021 19:25:47 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:23044 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403872AbhAKXNX (ORCPT ); Mon, 11 Jan 2021 18:13:23 -0500 Received: from pps.filterd (m0098394.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 10BN2UBG175401; Mon, 11 Jan 2021 18:12:38 -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=GmNvDU70WRRDHGJO5ab1fmTFybGNSQl2UdTKfI7awiA=; b=tJgxcxYtkfnXs6IVD/eBdT0dQl+tDnTPOk6AFTab02hgb+Tauz/9fKDeWfWvGM2T14dn aqZMipMs3zqICG/tSn3cCvOPQ/mfaROcc/fEqJtPjilDUkgYMNMnJW+hGwNzrlxCytzL 0xvGgzyD4jPDraTzexOSAcdnFmqD1BIJwl7+W/YV2IiEpUOpCuRWSbVXQfUzbWteYq9F 0JEPV3KkUdO3GyRVeULyGAjzXup7q41Zxa4YNgk+R4i2po0lQiTABl0gHPonSKh7Pa1U 1iIvVJj50I6oLKBKbo8d5AIOetDuND7K3Y3YQhiCmakTmzr7zTapHQy0xg+YrFwCH2xf SQ== Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 360yvkrf51-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Jan 2021 18:12:38 -0500 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 10BN7xjI008136; Mon, 11 Jan 2021 23:12:37 GMT Received: from b03cxnp07028.gho.boulder.ibm.com (b03cxnp07028.gho.boulder.ibm.com [9.17.130.15]) by ppma03dal.us.ibm.com with ESMTP id 35y448xcph-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 11 Jan 2021 23:12:37 +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 10BNCa7v23855526 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 11 Jan 2021 23:12:36 GMT Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 164407805F; Mon, 11 Jan 2021 23:12:36 +0000 (GMT) Received: from b03ledav004.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A962C78067; Mon, 11 Jan 2021 23:12:35 +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 23:12:35 +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 Subject: [PATCH v4 17/21] ibmvfc: add cancel mad initialization helper Date: Mon, 11 Jan 2021 17:12:21 -0600 Message-Id: <20210111231225.105347-18-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 adultscore=0 impostorscore=0 malwarescore=0 mlxscore=0 spamscore=0 bulkscore=0 mlxlogscore=999 lowpriorityscore=0 phishscore=0 priorityscore=1501 suspectscore=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 Add a helper routine for initializing a Cancel MAD. This will be useful for a channelized client that needs to send Cancel commands down every channel commands were sent for a particular LUN. Signed-off-by: Tyrel Datwyler --- drivers/scsi/ibmvscsi/ibmvfc.c | 68 ++++++++++++++++++++-------------- 1 file changed, 40 insertions(+), 28 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 578e27180f10..b0b0212344f3 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -2379,6 +2379,45 @@ static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device, return SUCCESS; } +static struct ibmvfc_event *ibmvfc_init_tmf(struct ibmvfc_queue *queue, + struct scsi_device *sdev, + int type) +{ + struct ibmvfc_host *vhost = shost_priv(sdev->host); + struct scsi_target *starget = scsi_target(sdev); + struct fc_rport *rport = starget_to_rport(starget); + struct ibmvfc_event *evt; + struct ibmvfc_tmf *tmf; + + evt = ibmvfc_get_event(queue); + ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT); + + tmf = &evt->iu.tmf; + memset(tmf, 0, sizeof(*tmf)); + if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) { + tmf->common.version = cpu_to_be32(2); + tmf->target_wwpn = cpu_to_be64(rport->port_name); + } else { + tmf->common.version = cpu_to_be32(1); + } + tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD); + tmf->common.length = cpu_to_be16(sizeof(*tmf)); + tmf->scsi_id = cpu_to_be64(rport->port_id); + int_to_scsilun(sdev->lun, &tmf->lun); + if (!ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPRESS_ABTS)) + type &= ~IBMVFC_TMF_SUPPRESS_ABTS; + if (vhost->state == IBMVFC_ACTIVE) + tmf->flags = cpu_to_be32((type | IBMVFC_TMF_LUA_VALID)); + else + tmf->flags = cpu_to_be32(((type & IBMVFC_TMF_SUPPRESS_ABTS) | IBMVFC_TMF_LUA_VALID)); + tmf->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata); + tmf->my_cancel_key = cpu_to_be32((unsigned long)starget->hostdata); + + init_completion(&evt->comp); + + return evt; +} + /** * ibmvfc_cancel_all - Cancel all outstanding commands to the device * @sdev: scsi device to cancel commands @@ -2393,9 +2432,6 @@ static int ibmvfc_wait_for_ops(struct ibmvfc_host *vhost, void *device, static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) { struct ibmvfc_host *vhost = shost_priv(sdev->host); - struct scsi_target *starget = scsi_target(sdev); - struct fc_rport *rport = starget_to_rport(starget); - struct ibmvfc_tmf *tmf; struct ibmvfc_event *evt, *found_evt; union ibmvfc_iu rsp; int rsp_rc = -EBUSY; @@ -2422,32 +2458,8 @@ static int ibmvfc_cancel_all(struct scsi_device *sdev, int type) } if (vhost->logged_in) { - evt = ibmvfc_get_event(&vhost->crq); - ibmvfc_init_event(evt, ibmvfc_sync_completion, IBMVFC_MAD_FORMAT); - - tmf = &evt->iu.tmf; - memset(tmf, 0, sizeof(*tmf)); - if (ibmvfc_check_caps(vhost, IBMVFC_HANDLE_VF_WWPN)) { - tmf->common.version = cpu_to_be32(2); - tmf->target_wwpn = cpu_to_be64(rport->port_name); - } else { - tmf->common.version = cpu_to_be32(1); - } - tmf->common.opcode = cpu_to_be32(IBMVFC_TMF_MAD); - tmf->common.length = cpu_to_be16(sizeof(*tmf)); - tmf->scsi_id = cpu_to_be64(rport->port_id); - int_to_scsilun(sdev->lun, &tmf->lun); - if (!ibmvfc_check_caps(vhost, IBMVFC_CAN_SUPPRESS_ABTS)) - type &= ~IBMVFC_TMF_SUPPRESS_ABTS; - if (vhost->state == IBMVFC_ACTIVE) - tmf->flags = cpu_to_be32((type | IBMVFC_TMF_LUA_VALID)); - else - tmf->flags = cpu_to_be32(((type & IBMVFC_TMF_SUPPRESS_ABTS) | IBMVFC_TMF_LUA_VALID)); - tmf->cancel_key = cpu_to_be32((unsigned long)sdev->hostdata); - tmf->my_cancel_key = cpu_to_be32((unsigned long)starget->hostdata); - + evt = ibmvfc_init_tmf(&vhost->crq, sdev, type); evt->sync_iu = &rsp; - init_completion(&evt->comp); rsp_rc = ibmvfc_send_event(evt, vhost, default_timeout); }