From patchwork Tue Nov 3 10:25:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karsten Graul X-Patchwork-Id: 11876639 X-Patchwork-Delegate: kuba@kernel.org 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 73443C388F2 for ; Tue, 3 Nov 2020 10:26:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1836322409 for ; Tue, 3 Nov 2020 10:26:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="UdHefZQ+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728182AbgKCK0B (ORCPT ); Tue, 3 Nov 2020 05:26:01 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:46494 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728057AbgKCKZy (ORCPT ); Tue, 3 Nov 2020 05:25:54 -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 0A3A2rLM144223; Tue, 3 Nov 2020 05:25:53 -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; s=pp1; bh=ag+R+vMP/I79qQbBPxbwIUcND10y7U6pOMvU9TEVx9s=; b=UdHefZQ+NKwmDaZxr+d9aSAl5GmGWft9SF4fExiUWeTDFC3gbmlauFB7pUVPEwqGgxH5 TsHmEAPaNJWZ/6bHm36ZP20pHwH9gGobxclBfv49TBnhptgpGEb92v14vGPRhG/eZVYl 3+C+SEs2UgARKJqBXcEAMdAtiSG3IufzwLs0mSTz53b+OgnRq0qrUTZkkDyw0O4ffrvM l/4BVsGaF8EBG0032sW02O1G7qzQvp3PO2FntrXFvC6VrHWXKLTxbw7fDRpTrFcJOOlj L6IKj9PjK53Upj47L75lz2jQXZkrsUSBdH/GIWRrV8iYIk8bl6GTgjnfmn6RlZ95SF0o IA== Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0a-001b2d01.pphosted.com with ESMTP id 34k2a4nwjn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 03 Nov 2020 05:25:52 -0500 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.16.0.42/8.16.0.42) with SMTP id 0A3ANn8S021656; Tue, 3 Nov 2020 10:25:50 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma05fra.de.ibm.com with ESMTP id 34h01qsks6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 03 Nov 2020 10:25:50 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 0A3APlEj2228946 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 3 Nov 2020 10:25:47 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9EA4BA4054; Tue, 3 Nov 2020 10:25:47 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 66FE8A405F; Tue, 3 Nov 2020 10:25:47 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 3 Nov 2020 10:25:47 +0000 (GMT) From: Karsten Graul To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-s390@vger.kernel.org, hca@linux.ibm.com, raspl@linux.ibm.com Subject: [PATCH net-next v2 04/15] net/smc: Add link counters for IB device ports Date: Tue, 3 Nov 2020 11:25:20 +0100 Message-Id: <20201103102531.91710-5-kgraul@linux.ibm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201103102531.91710-1-kgraul@linux.ibm.com> References: <20201103102531.91710-1-kgraul@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.312,18.0.737 definitions=2020-11-03_07:2020-11-02,2020-11-03 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 malwarescore=0 lowpriorityscore=0 mlxlogscore=999 adultscore=0 phishscore=0 priorityscore=1501 clxscore=1015 bulkscore=0 mlxscore=0 impostorscore=0 suspectscore=3 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011030065 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Guvenc Gulce Add link counters to the structure of the smc ib device, one counter per ib port. Increase/decrease the counters as needed in the corresponding routines. Signed-off-by: Guvenc Gulce Signed-off-by: Karsten Graul --- net/smc/smc_core.c | 3 +++ net/smc/smc_ib.h | 1 + 2 files changed, 4 insertions(+) diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 6e2077161267..da94725deb09 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -316,6 +316,7 @@ int smcr_link_init(struct smc_link_group *lgr, struct smc_link *lnk, lnk->link_idx = link_idx; lnk->smcibdev = ini->ib_dev; lnk->ibport = ini->ib_port; + atomic_inc(&ini->ib_dev->lnk_cnt_by_port[ini->ib_port - 1]); lnk->path_mtu = ini->ib_dev->pattr[ini->ib_port - 1].active_mtu; atomic_set(&lnk->conn_cnt, 0); smc_llc_link_set_uid(lnk); @@ -360,6 +361,7 @@ int smcr_link_init(struct smc_link_group *lgr, struct smc_link *lnk, smc_llc_link_clear(lnk, false); out: put_device(&ini->ib_dev->ibdev->dev); + atomic_dec(&ini->ib_dev->lnk_cnt_by_port[ini->ib_port - 1]); memset(lnk, 0, sizeof(struct smc_link)); lnk->state = SMC_LNK_UNUSED; if (!atomic_dec_return(&ini->ib_dev->lnk_cnt)) @@ -750,6 +752,7 @@ void smcr_link_clear(struct smc_link *lnk, bool log) smc_ib_dealloc_protection_domain(lnk); smc_wr_free_link_mem(lnk); put_device(&lnk->smcibdev->ibdev->dev); + atomic_dec(&lnk->smcibdev->lnk_cnt_by_port[lnk->ibport - 1]); smcibdev = lnk->smcibdev; memset(lnk, 0, sizeof(struct smc_link)); lnk->state = SMC_LNK_UNUSED; diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h index 2ce481187dd0..3e6bfeddd53b 100644 --- a/net/smc/smc_ib.h +++ b/net/smc/smc_ib.h @@ -53,6 +53,7 @@ struct smc_ib_device { /* ib-device infos for smc */ atomic_t lnk_cnt; /* number of links on ibdev */ wait_queue_head_t lnks_deleted; /* wait 4 removal of all links*/ struct mutex mutex; /* protect dev setup+cleanup */ + atomic_t lnk_cnt_by_port[SMC_MAX_PORTS];/*#lnk per port*/ }; struct smc_buf_desc;