From nobody Fri Nov 29 16:39:43 2024 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A484A78276; Wed, 18 Sep 2024 08:36:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.165.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726648571; cv=none; b=C5WOG7WvZfNYi6hnTn6ansDjo+wLS7mAjs5fVSElbTiExeXT8e8SPHgG6zbqwID7cFykTQU86I4pDr+Mc8ro5tbmGZ4U1DI6XhTU+6GT1P0/DJS0xvE0LDsaIGHJfTcyY/2ws1plAY/LNPKoyOO+aB27WblhmgVNBZ+YBi3ewNA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726648571; c=relaxed/simple; bh=azTz4oKYtBbwKjhXuZO6bye0svRN1gTi51SYvZZgnpQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uHRuAnPIYZLVDxG6J2yBvt2QgHmjTWK4BbKgMvYRH5wrVzX3TIrKKKVcm8mtm6S62QliZ7sS31vAez7Eh6dhHdpv7t2Y4MSdizlfSS1Ns/NVjWkY8Q9/KXbPlU5URf5SKhxKDDhH//S/k46vDCDVJXDhNybTjk/4Vaj4b2tQvDg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=EfOAsC7y; arc=none smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="EfOAsC7y" Received: from pps.filterd (m0246629.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 48I7twYd031866; Wed, 18 Sep 2024 08:36:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-type:content-transfer-encoding; s= corp-2023-11-20; bh=SMpGMSK5QiT+EAP4hBegW4Vj7pusBqETJivS3nKKK+w=; b= EfOAsC7y1J9egTsrljq2jCn9iS25HP3l/HwOeNdXg9rjwXADtnzJ4sz1J1igVG40 Q36Q4DOuc/56o4gWgEYWvpF9U8YsP6JznIltE6adOhu8EvrVmfKdbBaEpH+HSF8I WmYx/N0YZKf1Aaq/XRs3cUFrmcpSfawVxbqnV+OEQGsfBdrPcTG+IpI++916tllm 2VihA7zhCnsBcv+dNasy633ThqSzRAjzc4rVfc/2YKa1ZygBrqdMRDYSRSBzB+0a D0Ptg7cT/9c0X2Q1/4q6dt4B+YaBEg36QHhw7QAp9SMYiMHRJQydKgQZ0ml2AGBv CH1xYlCKEwmww5gcUCIRaA== Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.appoci.oracle.com [138.1.114.2]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 41n3n3gnhp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Sep 2024 08:36:00 +0000 (GMT) Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 48I7U5Sc010493; Wed, 18 Sep 2024 08:36:00 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 41nyb7yt21-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 18 Sep 2024 08:35:59 +0000 Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 48I8Zu48022467; Wed, 18 Sep 2024 08:35:59 GMT Received: from lab61.no.oracle.com (lab61.no.oracle.com [10.172.144.82]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 41nyb7ystx-2; Wed, 18 Sep 2024 08:35:59 +0000 From: =?UTF-8?q?H=C3=A5kon=20Bugge?= To: Jason Gunthorpe , Leon Romanovsky , Allison Henderson , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, rds-devel@oss.oracle.com Subject: [MAINLINE 1/2] RDMA/core: Enable legacy ULPs to use RDMA DIM Date: Wed, 18 Sep 2024 10:35:51 +0200 Message-ID: <20240918083552.77531-2-haakon.bugge@oracle.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20240918083552.77531-1-haakon.bugge@oracle.com> References: <20240918083552.77531-1-haakon.bugge@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-18_06,2024-09-16_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 bulkscore=0 adultscore=0 malwarescore=0 suspectscore=0 phishscore=0 spamscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2408220000 definitions=main-2409180053 X-Proofpoint-GUID: hOZummPjxIhAd6BLYkzUxpcIZZLKIdmo X-Proofpoint-ORIG-GUID: hOZummPjxIhAd6BLYkzUxpcIZZLKIdmo The RDMA DIM mechanism is not available for legacy ULPs using ib_create_cq(). Hence, enable it in ib_create_cq_user() if IB_CQ_MODERATE is set in cq_attr.flags. This way, legacy ULPs can take advantage of RDMA DIM. Signed-off-by: H=C3=A5kon Bugge --- drivers/infiniband/core/cq.c | 7 +++++-- drivers/infiniband/core/cq.h | 16 ++++++++++++++++ drivers/infiniband/core/verbs.c | 6 ++++++ 3 files changed, 27 insertions(+), 2 deletions(-) create mode 100644 drivers/infiniband/core/cq.h diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c index a70876a0a2312..8e582eca6987f 100644 --- a/drivers/infiniband/core/cq.c +++ b/drivers/infiniband/core/cq.c @@ -7,6 +7,7 @@ #include =20 #include "core_priv.h" +#include "cq.h" =20 #include /* Max size for shared CQ, may require tuning */ @@ -50,7 +51,7 @@ static void ib_cq_rdma_dim_work(struct work_struct *w) cq->device->ops.modify_cq(cq, comps, usec); } =20 -static void rdma_dim_init(struct ib_cq *cq) +void rdma_dim_init(struct ib_cq *cq) { struct dim *dim; =20 @@ -70,8 +71,9 @@ static void rdma_dim_init(struct ib_cq *cq) =20 INIT_WORK(&dim->work, ib_cq_rdma_dim_work); } +EXPORT_SYMBOL(rdma_dim_init); =20 -static void rdma_dim_destroy(struct ib_cq *cq) +void rdma_dim_destroy(struct ib_cq *cq) { if (!cq->dim) return; @@ -79,6 +81,7 @@ static void rdma_dim_destroy(struct ib_cq *cq) cancel_work_sync(&cq->dim->work); kfree(cq->dim); } +EXPORT_SYMBOL(rdma_dim_destroy); =20 static int __poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc) { diff --git a/drivers/infiniband/core/cq.h b/drivers/infiniband/core/cq.h new file mode 100644 index 0000000000000..c55f7d3f1cbf4 --- /dev/null +++ b/drivers/infiniband/core/cq.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Let other files use rdma_dim_{init,destroy} + * + * Author: H=C3=A5kon Bugge + * + * Copyright (c) 2024 Oracle and/or its affiliates. + */ + +#ifndef CQ_H +#define CQ_H + +void rdma_dim_init(struct ib_cq *cq); +void rdma_dim_destroy(struct ib_cq *cq); + +#endif diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verb= s.c index 473ee0831307c..60a64ea77ae25 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -53,6 +53,7 @@ #include =20 #include "core_priv.h" +#include "cq.h" #include =20 static int ib_resolve_eth_dmac(struct ib_device *device, @@ -2161,6 +2162,9 @@ struct ib_cq *__ib_create_cq(struct ib_device *device, return ERR_PTR(ret); } =20 + if (cq_attr->flags & IB_CQ_MODERATE) + rdma_dim_init(cq); + rdma_restrack_add(&cq->res); return cq; } @@ -2187,6 +2191,8 @@ int ib_destroy_cq_user(struct ib_cq *cq, struct ib_ud= ata *udata) if (atomic_read(&cq->usecnt)) return -EBUSY; =20 + rdma_dim_destroy(cq); + ret =3D cq->device->ops.destroy_cq(cq, udata); if (ret) return ret; --=20 2.43.5