From patchwork Thu May 17 17:15:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steffen Maier X-Patchwork-Id: 10407317 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 41CDC60353 for ; Thu, 17 May 2018 17:16:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3130C28574 for ; Thu, 17 May 2018 17:16:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 25F46285A5; Thu, 17 May 2018 17:16:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B8F9628574 for ; Thu, 17 May 2018 17:16:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752249AbeEQRQc (ORCPT ); Thu, 17 May 2018 13:16:32 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:44488 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752080AbeEQRQb (ORCPT ); Thu, 17 May 2018 13:16:31 -0400 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w4HHENQ8078180 for ; Thu, 17 May 2018 13:16:31 -0400 Received: from e06smtp13.uk.ibm.com (e06smtp13.uk.ibm.com [195.75.94.109]) by mx0a-001b2d01.pphosted.com with ESMTP id 2j1b0q1mv9-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 17 May 2018 13:16:30 -0400 Received: from localhost by e06smtp13.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Thu, 17 May 2018 18:16:26 +0100 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w4HHGPAc983398; Thu, 17 May 2018 17:16:25 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A033D4C04A; Thu, 17 May 2018 18:08:13 +0100 (BST) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4C9D54C04E; Thu, 17 May 2018 18:08:13 +0100 (BST) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Thu, 17 May 2018 18:08:13 +0100 (BST) From: Steffen Maier To: "James E . J . Bottomley" , "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, linux-s390@vger.kernel.org, Benjamin Block , Martin Schwidefsky , Heiko Carstens , Steffen Maier , Jens Remus Subject: [PATCH 25/25] zfcp: enhance comments on fc_link_speed and supported_speed Date: Thu, 17 May 2018 19:15:07 +0200 X-Mailer: git-send-email 2.16.3 In-Reply-To: <20180517171507.18237-1-maier@linux.ibm.com> References: <20180517171507.18237-1-maier@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 18051717-0012-0000-0000-000005D7B480 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18051717-0013-0000-0000-00001954E189 Message-Id: <20180517171507.18237-26-maier@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2018-05-17_09:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1805170161 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jens Remus The comment on fsf_qtcb_bottom_port.supported_speed did read as if the field can only assume one of two possible values (i.e. 0x1 for 1 GBit/s or 0x2 for 2 GBit/s). This is not true for two reasons: first it is a flag field and can thus assume any combination and second there are meanwhile more speeds. Clarify comment on fsf_qtcb_bottom_port.supported_speed and add a comment to fsf_qtcb_bottom_config.fc_link_speed. Signed-off-by: Jens Remus Reviewed-by: Steffen Maier Reviewed-by: Fedor Loshakov Acked-by: Benjamin Block Acked-by: Hendrik Brueckner Signed-off-by: Steffen Maier --- drivers/s390/scsi/zfcp_fsf.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index 4baca67aba6d..535628b92f0a 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -4,7 +4,7 @@ * * Interface to the FSF support functions. * - * Copyright IBM Corp. 2002, 2017 + * Copyright IBM Corp. 2002, 2018 */ #ifndef FSF_H @@ -356,7 +356,7 @@ struct fsf_qtcb_bottom_config { u32 adapter_features; u32 connection_features; u32 fc_topology; - u32 fc_link_speed; + u32 fc_link_speed; /* one of ZFCP_FSF_PORTSPEED_* */ u32 adapter_type; u8 res0; u8 peer_d_id[3]; @@ -382,7 +382,7 @@ struct fsf_qtcb_bottom_port { u32 class_of_service; /* should be 0x00000006 for class 2 and 3 */ u8 supported_fc4_types[32]; /* should be 0x00000100 for scsi fcp */ u8 active_fc4_types[32]; - u32 supported_speed; /* 0x0001 for 1 GBit/s or 0x0002 for 2 GBit/s */ + u32 supported_speed; /* any combination of ZFCP_FSF_PORTSPEED_* */ u32 maximum_frame_size; /* fixed value of 2112 */ u64 seconds_since_last_reset; u64 tx_frames;