From patchwork Mon Aug 7 08:32:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ganesh Goudar X-Patchwork-Id: 13343188 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 100B81C14 for ; Mon, 7 Aug 2023 08:38:15 +0000 (UTC) Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A22FF10EF for ; Mon, 7 Aug 2023 01:38:14 -0700 (PDT) Received: from pps.filterd (m0353723.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3778UbpI025835; Mon, 7 Aug 2023 08:38:06 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding; s=pp1; bh=sPxaBK+v0LpwvzJGBGOCnrHSicGRsYiKE4dWGzfNw7M=; b=LZWt26PGazu1GnTErSHUrhuOQsqQ3dCDuJWtbZJsgukVlFMY85YAVDU9s3kJU83Gxtil zD/bgrVr1bQnyVqEKLs5cxO9z+4T1PsCTWLhKP3zdOWfSzdJPU7s46Qmv36cPvq7qYex RljcpOByw6AuaDUzUuUh/Al9Wf+qofJflJQLtetVOxi8JnT83tOcoqGjXOd5x9AXkjZ7 MzegfInrECDJ0ckGQCukGlSfN28ZHdDEM/rfaU+NdAjuAP9BFkSBaZIKnDkNcdUvrqMD zf/nGncozukSMAAZ6evPA+fHFmJh1MKabqguoPTj5N2BCngWlpeiw8o5N04IMmUcvxMz CQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3saw5j06j3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 07 Aug 2023 08:38:06 +0000 Received: from m0353723.ppops.net (m0353723.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 3778UsCS026435; Mon, 7 Aug 2023 08:38:05 GMT Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3saw5j06hj-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 07 Aug 2023 08:38:05 +0000 Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 3778M8rk030364; Mon, 7 Aug 2023 08:33:05 GMT Received: from smtprelay04.fra02v.mail.ibm.com ([9.218.2.228]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 3sa1rmug15-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 07 Aug 2023 08:33:04 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay04.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 3778X1PM39649688 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 7 Aug 2023 08:33:01 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 665A820043; Mon, 7 Aug 2023 08:33:01 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C118120040; Mon, 7 Aug 2023 08:32:58 +0000 (GMT) Received: from li-79f82dcc-27d1-11b2-a85c-9579c2333295.ibm.com.com (unknown [9.43.16.9]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 7 Aug 2023 08:32:58 +0000 (GMT) From: Ganesh Goudar To: davem@davemloft.net Cc: netdev@vger.kernel.org, moshe@nvidia.com, leon@kernel.org, mahesh@linux.ibm.com, oohall@gmail.com, Ganesh Goudar Subject: [PATCH net] net/mlx5: Avoid MMIO when the error is detected Date: Mon, 7 Aug 2023 14:02:05 +0530 Message-Id: <20230807083205.18557-1-ganeshgr@linux.ibm.com> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: q7vDcD5aZuLEThpzcoCTWL4FqZyYg9kn X-Proofpoint-ORIG-GUID: yQ-bJDABI-xorHq79eNfH9xHZGZgncbf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.957,Hydra:6.0.591,FMLib:17.11.176.26 definitions=2023-08-07_06,2023-08-03_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 priorityscore=1501 clxscore=1011 mlxscore=0 phishscore=0 adultscore=0 impostorscore=0 mlxlogscore=704 lowpriorityscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2306200000 definitions=main-2308070079 X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,RCVD_IN_MSPIKE_H5,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org When the drivers are notfied about the pci error, All the IO to the card must be stopped, Else the recovery would fail, Avoid memory-mapped IO until the device recovers from pci error. Signed-off-by: Ganesh Goudar --- drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c index 932fbc843c69..010dee4eec14 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c @@ -221,10 +221,13 @@ static void mlx5_timestamp_overflow(struct work_struct *work) clock = container_of(timer, struct mlx5_clock, timer); mdev = container_of(clock, struct mlx5_core_dev, clock); + if (mdev->state == MLX5_DEVICE_STATE_INTERNAL_ERROR) + goto out; write_seqlock_irqsave(&clock->lock, flags); timecounter_read(&timer->tc); mlx5_update_clock_info_page(mdev); write_sequnlock_irqrestore(&clock->lock, flags); +out: schedule_delayed_work(&timer->overflow_work, timer->overflow_period); }