From patchwork Thu Jan 14 20:31:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tyrel Datwyler X-Patchwork-Id: 12020863 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 A1C25C4332D for ; Thu, 14 Jan 2021 20:35:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71BF323A9A for ; Thu, 14 Jan 2021 20:35:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730402AbhANUf1 (ORCPT ); Thu, 14 Jan 2021 15:35:27 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:8792 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726049AbhANUfM (ORCPT ); Thu, 14 Jan 2021 15:35:12 -0500 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 10EK3I3x055568; Thu, 14 Jan 2021 15:31:54 -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=s7uIzYnvjJVpUj7SPxdNdB2CeheK+3/3guDKAgZ1/JU=; b=iyq/aw891Uxv59iJkQ0vcBCwqk82Gye5EQlFR6RKuKymwuasXHK1dCs//CPfNIgR+VoU u3vfT2FbbBWMdx74fQQf+NRVblQws6Ls1ijDi/8/i53OcMnD09AqynH6pbmXh+aLtfqW wBUjTbkV1YZDkWdjRp0z1u1Bt80wvoKYuEib6xVyxNh9NUJJ4g4s+8WrDRljvAs0xH9T XPpGQeqVADgLqf65WKsPATpjuX+yT6T5F8CmCFVDdN8vz9say7BfTsp7x+QDGemeUGcs Yyd2DJr5jW31NFe40ckTIeMjyZO04Orq/8BDZQdZHBqpwtE65KlVs7KtT21WkvtbCP+n fg== Received: from ppma05wdc.us.ibm.com (1b.90.2fa9.ip4.static.sl-reverse.com [169.47.144.27]) by mx0a-001b2d01.pphosted.com with ESMTP id 362vca94cb-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Jan 2021 15:31:54 -0500 Received: from pps.filterd (ppma05wdc.us.ibm.com [127.0.0.1]) by ppma05wdc.us.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 10EKSHEG007288; Thu, 14 Jan 2021 20:31:53 GMT Received: from b03cxnp08025.gho.boulder.ibm.com (b03cxnp08025.gho.boulder.ibm.com [9.17.130.17]) by ppma05wdc.us.ibm.com with ESMTP id 362cwmdsqf-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 14 Jan 2021 20:31:53 +0000 Received: from b03ledav001.gho.boulder.ibm.com (b03ledav001.gho.boulder.ibm.com [9.17.130.232]) by b03cxnp08025.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 10EKVqk927394382 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 14 Jan 2021 20:31:52 GMT Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 009836E053; Thu, 14 Jan 2021 20:31:52 +0000 (GMT) Received: from b03ledav001.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A27DC6E052; Thu, 14 Jan 2021 20:31:51 +0000 (GMT) Received: from vios4361.aus.stglabs.ibm.com (unknown [9.3.43.61]) by b03ledav001.gho.boulder.ibm.com (Postfix) with ESMTP; Thu, 14 Jan 2021 20:31:51 +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 v5 04/21] ibmvfc: add size parameter to ibmvfc_init_event_pool Date: Thu, 14 Jan 2021 14:31:31 -0600 Message-Id: <20210114203148.246656-5-tyreld@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210114203148.246656-1-tyreld@linux.ibm.com> References: <20210114203148.246656-1-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=2021-01-14_07:2021-01-14,2021-01-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 clxscore=1015 malwarescore=0 priorityscore=1501 impostorscore=0 mlxscore=0 phishscore=0 adultscore=0 suspectscore=0 bulkscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2101140115 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org With the upcoming addition of Sub-CRQs the event pool size may vary per-queue. Add a size parameter to ibmvfc_init_event_pool such that different size event pools can be requested by ibmvfc_alloc_queue. Signed-off-by: Tyrel Datwyler Reviewed-by: Brian King --- drivers/scsi/ibmvscsi/ibmvfc.c | 25 ++++++++++++++++--------- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 9330f5a65a7e..524e81164d70 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -723,19 +723,23 @@ static int ibmvfc_send_crq_init_complete(struct ibmvfc_host *vhost) * Returns zero on success. **/ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, - struct ibmvfc_queue *queue) + struct ibmvfc_queue *queue, + unsigned int size) { int i; struct ibmvfc_event_pool *pool = &queue->evt_pool; ENTER; - pool->size = max_requests + IBMVFC_NUM_INTERNAL_REQ; - pool->events = kcalloc(pool->size, sizeof(*pool->events), GFP_KERNEL); + if (!size) + return 0; + + pool->size = size; + pool->events = kcalloc(size, sizeof(*pool->events), GFP_KERNEL); if (!pool->events) return -ENOMEM; pool->iu_storage = dma_alloc_coherent(vhost->dev, - pool->size * sizeof(*pool->iu_storage), + size * sizeof(*pool->iu_storage), &pool->iu_token, 0); if (!pool->iu_storage) { @@ -747,7 +751,7 @@ static int ibmvfc_init_event_pool(struct ibmvfc_host *vhost, INIT_LIST_HEAD(&queue->free); spin_lock_init(&queue->l_lock); - for (i = 0; i < pool->size; ++i) { + for (i = 0; i < size; ++i) { struct ibmvfc_event *evt = &pool->events[i]; atomic_set(&evt->free, 1); @@ -5013,6 +5017,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, { struct device *dev = vhost->dev; size_t fmt_size; + unsigned int pool_size = 0; ENTER; spin_lock_init(&queue->_lock); @@ -5021,10 +5026,7 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, switch (fmt) { case IBMVFC_CRQ_FMT: fmt_size = sizeof(*queue->msgs.crq); - if (ibmvfc_init_event_pool(vhost, queue)) { - dev_err(dev, "Couldn't initialize event pool.\n"); - return -ENOMEM; - } + pool_size = max_requests + IBMVFC_NUM_INTERNAL_REQ; break; case IBMVFC_ASYNC_FMT: fmt_size = sizeof(*queue->msgs.async); @@ -5034,6 +5036,11 @@ static int ibmvfc_alloc_queue(struct ibmvfc_host *vhost, return -EINVAL; } + if (ibmvfc_init_event_pool(vhost, queue, pool_size)) { + dev_err(dev, "Couldn't initialize event pool.\n"); + return -ENOMEM; + } + queue->msgs.handle = (void *)get_zeroed_page(GFP_KERNEL); if (!queue->msgs.handle) return -ENOMEM;