From patchwork Wed Sep 2 16:57:39 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Kalderon X-Patchwork-Id: 1355978 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=marvell.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=marvell.com header.i=@marvell.com header.a=rsa-sha256 header.s=pfpt0220 header.b=RlChEADG; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BhVWj1vFLz9sVB for ; Thu, 3 Sep 2020 02:58:41 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728456AbgIBQ6j (ORCPT ); Wed, 2 Sep 2020 12:58:39 -0400 Received: from mx0b-0016f401.pphosted.com ([67.231.156.173]:22550 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728392AbgIBQ6d (ORCPT ); Wed, 2 Sep 2020 12:58:33 -0400 Received: from pps.filterd (m0045851.ppops.net [127.0.0.1]) by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 082GttIl000466; Wed, 2 Sep 2020 09:58:27 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0220; bh=dBqJCrQHiey7Gct+vrlrUNh6V1GDqzv8arS2jMkbj3s=; b=RlChEADGVSj+/AXSG4Eft4NnyQArPz+ORiB6H95yjA9uqUdHuGVeHWdu+K+i7XK9eLtp cid6wXSPcQHAOO+G5WqjvbjzWDbQWKtNiK7JfKZO/fnAEhRGt2cIx+8EPxZ7DVtTT1tK nrCOGawrtbklQY7mlXsf+mf+GwOa5lIxiRcwvv+7pgHznlWpW/DotXkPNdCniLtJwIQh NC1uPDq/5E+F07GSgcLXmMGo0XIn2R9NMsFFd3vgH9TNonBSVwe+Zn18oK5m97OwokcO SM+omK4Ob4nqW3fSXL6W4ORKSWHIyDwLsBTT9mqOUVmCENNMZITrkCOOv8BIWI6VgWZb 7g== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0b-0016f401.pphosted.com with ESMTP id 337phq7jes-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Wed, 02 Sep 2020 09:58:27 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 2 Sep 2020 09:58:26 -0700 Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 2 Sep 2020 09:58:24 -0700 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Wed, 2 Sep 2020 09:58:24 -0700 Received: from lb-tlvb-michal.il.qlogic.org (unknown [10.5.220.215]) by maili.marvell.com (Postfix) with ESMTP id 59BD23F703F; Wed, 2 Sep 2020 09:58:22 -0700 (PDT) From: Michal Kalderon To: , , , , CC: , , Michal Kalderon Subject: [PATCH rdma-next 6/8] RDMA/qedr: Fix iWARP active mtu display Date: Wed, 2 Sep 2020 19:57:39 +0300 Message-ID: <20200902165741.8355-7-michal.kalderon@marvell.com> X-Mailer: git-send-email 2.14.5 In-Reply-To: <20200902165741.8355-1-michal.kalderon@marvell.com> References: <20200902165741.8355-1-michal.kalderon@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-02_11:2020-09-02,2020-09-02 signatures=0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Currently iWARP does not support mtu-change. Notify user when MTU changes that reload of qedr is required for mtu to change. Display the correct active mtu. Fixes: f5b1b1775be6 ("RDMA/qedr: Add iWARP support in existing verbs") Signed-off-by: Michal Kalderon --- drivers/infiniband/hw/qedr/main.c | 7 +++++++ drivers/infiniband/hw/qedr/verbs.c | 3 ++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/qedr/main.c b/drivers/infiniband/hw/qedr/main.c index 8e1365951fb6..1f32e8b8cc11 100644 --- a/drivers/infiniband/hw/qedr/main.c +++ b/drivers/infiniband/hw/qedr/main.c @@ -1026,6 +1026,13 @@ static void qedr_notify(struct qedr_dev *dev, enum qede_rdma_event event) case QEDE_CHANGE_ADDR: qedr_mac_address_change(dev); break; + case QEDE_CHANGE_MTU: + if (rdma_protocol_iwarp(&dev->ibdev, 1)) + if (dev->ndev->mtu != dev->iwarp_max_mtu) + DP_NOTICE(dev, + "Mtu was changed from %d to %d. This will not take affect for iWARP until qedr is reloaded\n", + dev->iwarp_max_mtu, dev->ndev->mtu); + break; default: pr_err("Event not supported\n"); } diff --git a/drivers/infiniband/hw/qedr/verbs.c b/drivers/infiniband/hw/qedr/verbs.c index 62fe9fc40f42..4ec2d05f63d1 100644 --- a/drivers/infiniband/hw/qedr/verbs.c +++ b/drivers/infiniband/hw/qedr/verbs.c @@ -231,15 +231,16 @@ int qedr_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *attr) attr->phys_state = IB_PORT_PHYS_STATE_DISABLED; } attr->max_mtu = IB_MTU_4096; - attr->active_mtu = iboe_get_mtu(dev->ndev->mtu); attr->lid = 0; attr->lmc = 0; attr->sm_lid = 0; attr->sm_sl = 0; attr->ip_gids = true; if (rdma_protocol_iwarp(&dev->ibdev, 1)) { + attr->active_mtu = iboe_get_mtu(dev->iwarp_max_mtu); attr->gid_tbl_len = 1; } else { + attr->active_mtu = iboe_get_mtu(dev->ndev->mtu); attr->gid_tbl_len = QEDR_MAX_SGID; attr->pkey_tbl_len = QEDR_ROCE_PKEY_TABLE_LEN; }