From patchwork Fri Feb 21 03:27:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alastair D'Silva X-Patchwork-Id: 11395423 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D663C1395 for ; Fri, 21 Feb 2020 03:29:38 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BECB0208E4 for ; Fri, 21 Feb 2020 03:29:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BECB0208E4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=au1.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id E3EFC10FC3611; Thu, 20 Feb 2020 19:30:30 -0800 (PST) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=alastair@au1.ibm.com; receiver= Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 686F210FC360D for ; Thu, 20 Feb 2020 19:30:28 -0800 (PST) Received: from pps.filterd (m0098409.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01L3KCDu143866 for ; Thu, 20 Feb 2020 22:29:35 -0500 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2y8ubc19we-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 20 Feb 2020 22:29:35 -0500 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 21 Feb 2020 03:29:26 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01L3SAFD49086646 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 21 Feb 2020 03:28:11 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D8936AE04D; Fri, 21 Feb 2020 03:28:10 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 32941AE045; Fri, 21 Feb 2020 03:28:10 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 21 Feb 2020 03:28:10 +0000 (GMT) Received: from adsilva.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id CA2C4A03E2; Fri, 21 Feb 2020 14:28:03 +1100 (AEDT) From: "Alastair D'Silva" To: alastair@d-silva.org Subject: [PATCH v3 21/27] powerpc/powernv/pmem: Add an IOCTL to request controller health & perf data Date: Fri, 21 Feb 2020 14:27:14 +1100 X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200221032720.33893-1-alastair@au1.ibm.com> References: <20200221032720.33893-1-alastair@au1.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20022103-0020-0000-0000-000003AC221B X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20022103-0021-0000-0000-000022042A3E Message-Id: <20200221032720.33893-22-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-02-20_19:2020-02-19,2020-02-20 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 phishscore=0 adultscore=0 mlxscore=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 mlxlogscore=632 suspectscore=1 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002210020 Message-ID-Hash: 4UA2H7GCHVLDPL3DSTT76PJDYWYK656F X-Message-ID-Hash: 4UA2H7GCHVLDPL3DSTT76PJDYWYK656F X-MailFrom: alastair@au1.ibm.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: "Aneesh Kumar K . V" , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Frederic Barrat , Andrew Donnellan , Arnd Bergmann , Greg Kroah-Hartman , Andrew Morton , Mauro Carvalho Chehab , "David S. Miller" , Rob Herring , Anton Blanchard , Krzysztof Kozlowski , Mahesh Salgaonkar , Madhavan Srinivasan , =?utf-8?q?C=C3=A9dric_Le_Go?= =?utf-8?q?ater?= , Anju T Sudhakar , Hari Bathini , Thomas Gleixner , Greg Kurz , Nicholas Piggin , Masahiro Yamada , Alexey Kardashevskiy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org, linux-mm@kvack.org X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: From: Alastair D'Silva When health & performance data is requested from the controller, it responds with an error log containing the requested information. This patch allows the request to me issued via an IOCTL. Signed-off-by: Alastair D'Silva --- arch/powerpc/platforms/powernv/pmem/ocxl.c | 16 ++++++++++++++++ include/uapi/nvdimm/ocxl-pmem.h | 1 + 2 files changed, 17 insertions(+) diff --git a/arch/powerpc/platforms/powernv/pmem/ocxl.c b/arch/powerpc/platforms/powernv/pmem/ocxl.c index e46696d3cc36..081883a8247a 100644 --- a/arch/powerpc/platforms/powernv/pmem/ocxl.c +++ b/arch/powerpc/platforms/powernv/pmem/ocxl.c @@ -1000,6 +1000,18 @@ static int ioctl_event_check(struct ocxlpmem *ocxlpmem, u64 __user *uarg) return rc; } +/** + * req_controller_health_perf() - Request controller health & performance data + * @ocxlpmem: the device metadata + * Return: 0 on success, negative on failure + */ +int req_controller_health_perf(struct ocxlpmem *ocxlpmem) +{ + return ocxl_global_mmio_set64(ocxlpmem->ocxl_afu, GLOBAL_MMIO_HCI, + OCXL_LITTLE_ENDIAN, + GLOBAL_MMIO_HCI_REQ_HEALTH_PERF); +} + static long file_ioctl(struct file *file, unsigned int cmd, unsigned long args) { struct ocxlpmem *ocxlpmem = file->private_data; @@ -1037,6 +1049,10 @@ static long file_ioctl(struct file *file, unsigned int cmd, unsigned long args) case IOCTL_OCXL_PMEM_EVENT_CHECK: rc = ioctl_event_check(ocxlpmem, (u64 __user *)args); break; + + case IOCTL_OCXL_PMEM_REQUEST_HEALTH: + rc = req_controller_health_perf(ocxlpmem); + break; } return rc; diff --git a/include/uapi/nvdimm/ocxl-pmem.h b/include/uapi/nvdimm/ocxl-pmem.h index 988eb0bc413d..0d03abb44001 100644 --- a/include/uapi/nvdimm/ocxl-pmem.h +++ b/include/uapi/nvdimm/ocxl-pmem.h @@ -90,5 +90,6 @@ struct ioctl_ocxl_pmem_eventfd { #define IOCTL_OCXL_PMEM_CONTROLLER_STATS _IO(OCXL_PMEM_MAGIC, 0x05) #define IOCTL_OCXL_PMEM_EVENTFD _IOW(OCXL_PMEM_MAGIC, 0x06, struct ioctl_ocxl_pmem_eventfd) #define IOCTL_OCXL_PMEM_EVENT_CHECK _IOR(OCXL_PMEM_MAGIC, 0x07, __u64) +#define IOCTL_OCXL_PMEM_REQUEST_HEALTH _IO(OCXL_PMEM_MAGIC, 0x08) #endif /* _UAPI_OCXL_SCM_H */